diff options
Diffstat (limited to 'os/hal/platforms/LPC8xx')
| -rw-r--r-- | os/hal/platforms/LPC8xx/LPC8xx.h | 686 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/ext_lld.c | 168 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/ext_lld.h | 152 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/ext_lld_isr.c | 194 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/ext_lld_isr.h | 129 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/gpt_lld.c | 278 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/gpt_lld.h | 208 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/hal_lld.c | 140 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/hal_lld.h | 221 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/pal_lld.c | 105 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/pal_lld.h | 290 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/platform.dox | 104 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/platform.mk | 11 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/serial_lld.c | 352 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/serial_lld.h | 269 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/spi_lld.c | 385 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/spi_lld.h | 285 | ||||
| -rw-r--r-- | os/hal/platforms/LPC8xx/system_LPC8xx.h | 62 |
18 files changed, 4039 insertions, 0 deletions
diff --git a/os/hal/platforms/LPC8xx/LPC8xx.h b/os/hal/platforms/LPC8xx/LPC8xx.h new file mode 100644 index 000000000..41fe7da21 --- /dev/null +++ b/os/hal/platforms/LPC8xx/LPC8xx.h @@ -0,0 +1,686 @@ +/****************************************************************************
+ * $Id:: LPC8xx.h 6437 2012-10-31 11:06:06Z dep00694 $
+ * Project: NXP LPC8xx software example
+ *
+ * Description:
+ * CMSIS Cortex-M0+ Core Peripheral Access Layer Header File for
+ * NXP LPC800 Device Series
+ *
+ ****************************************************************************
+ * Software that is described herein is for illustrative purposes only
+ * which provides customers with programming information regarding the
+ * products. This software is supplied "AS IS" without any warranties.
+ * NXP Semiconductors assumes no responsibility or liability for the
+ * use of the software, conveys no license or title under any patent,
+ * copyright, or mask work right to the product. NXP Semiconductors
+ * reserves the right to make changes in the software without
+ * notification. NXP Semiconductors also make no representation or
+ * warranty that such application will be suitable for the specified
+ * use without further testing or modification.
+
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation is hereby granted, under NXP Semiconductors'
+ * relevant copyright in the software, without fee, provided that it
+ * is used in conjunction with NXP Semiconductors microcontrollers. This
+ * copyright, permission, and disclaimer notice must appear in all copies of
+ * this code.
+****************************************************************************/
+#ifndef __LPC8xx_H__
+#define __LPC8xx_H__
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/** @addtogroup LPC8xx_Definitions LPC8xx Definitions
+ This file defines all structures and symbols for LPC8xx:
+ - Registers and bitfields
+ - peripheral base address
+ - PIO definitions
+ @{
+*/
+
+
+/******************************************************************************/
+/* Processor and Core Peripherals */
+/******************************************************************************/
+/** @addtogroup LPC8xx_CMSIS LPC8xx CMSIS Definitions
+ Configuration of the Cortex-M0+ Processor and Core Peripherals
+ @{
+*/
+
+/*
+ * ==========================================================================
+ * ---------- Interrupt Number Definition -----------------------------------
+ * ==========================================================================
+ */
+typedef enum IRQn
+{
+/****** Cortex-M0 Processor Exceptions Numbers ***************************************************/
+ Reset_IRQn = -15, /*!< 1 Reset Vector, invoked on Power up and warm reset*/
+ NonMaskableInt_IRQn = -14, /*!< 2 Non Maskable Interrupt */
+ HardFault_IRQn = -13, /*!< 3 Cortex-M0 Hard Fault Interrupt */
+ SVCall_IRQn = -5, /*!< 11 Cortex-M0 SV Call Interrupt */
+ PendSV_IRQn = -2, /*!< 14 Cortex-M0 Pend SV Interrupt */
+ SysTick_IRQn = -1, /*!< 15 Cortex-M0 System Tick Interrupt */
+
+/****** LPC8xx Specific Interrupt Numbers ********************************************************/
+ SPI0_IRQn = 0, /*!< SPI0 */
+ SPI1_IRQn = 1, /*!< SPI1 */
+ Reserved0_IRQn = 2, /*!< Reserved Interrupt */
+ UART0_IRQn = 3, /*!< USART0 */
+ UART1_IRQn = 4, /*!< USART1 */
+ UART2_IRQn = 5, /*!< USART2 */
+ Reserved1_IRQn = 6, /*!< Reserved Interrupt */
+ Reserved2_IRQn = 7, /*!< Reserved Interrupt */
+ I2C_IRQn = 8, /*!< I2C */
+ SCT_IRQn = 9, /*!< SCT */
+ MRT_IRQn = 10, /*!< MRT */
+ CMP_IRQn = 11, /*!< CMP */
+ WDT_IRQn = 12, /*!< WDT */
+ BOD_IRQn = 13, /*!< BOD */
+ Reserved3_IRQn = 14, /*!< Reserved Interrupt */
+ WKT_IRQn = 15, /*!< WKT Interrupt */
+ Reserved4_IRQn = 16, /*!< Reserved Interrupt */
+ Reserved5_IRQn = 17, /*!< Reserved Interrupt */
+ Reserved6_IRQn = 18, /*!< Reserved Interrupt */
+ Reserved7_IRQn = 19, /*!< Reserved Interrupt */
+ Reserved8_IRQn = 20, /*!< Reserved Interrupt */
+ Reserved9_IRQn = 21, /*!< Reserved Interrupt */
+ Reserved10_IRQn = 22, /*!< Reserved Interrupt */
+ Reserved11_IRQn = 23, /*!< Reserved Interrupt */
+ PININT0_IRQn = 24, /*!< External Interrupt 0 */
+ PININT1_IRQn = 25, /*!< External Interrupt 1 */
+ PININT2_IRQn = 26, /*!< External Interrupt 2 */
+ PININT3_IRQn = 27, /*!< External Interrupt 3 */
+ PININT4_IRQn = 28, /*!< External Interrupt 4 */
+ PININT5_IRQn = 29, /*!< External Interrupt 5 */
+ PININT6_IRQn = 30, /*!< External Interrupt 6 */
+ PININT7_IRQn = 31, /*!< External Interrupt 7 */
+} IRQn_Type;
+
+/*
+ * ==========================================================================
+ * ----------- Processor and Core Peripheral Section ------------------------
+ * ==========================================================================
+ */
+
+/* Configuration of the Cortex-M0+ Processor and Core Peripherals */
+#define __MPU_PRESENT 0 /*!< MPU present or not */
+#define __NVIC_PRIO_BITS 2 /*!< Number of Bits used for Priority Levels */
+#define __Vendor_SysTickConfig 0 /*!< Set to 1 if different SysTick Config is used */
+
+/*@}*/ /* end of group LPC8xx_CMSIS */
+
+
+#include "core_cm0plus.h" /* Cortex-M0+ processor and core peripherals */
+#include "system_LPC8xx.h" /* System Header */
+
+
+/******************************************************************************/
+/* Device Specific Peripheral Registers structures */
+/******************************************************************************/
+
+#if defined ( __CC_ARM )
+#pragma anon_unions
+#endif
+
+/*------------- System Control (SYSCON) --------------------------------------*/
+/** @addtogroup LPC8xx_SYSCON LPC8xx System Control Block
+ @{
+*/
+typedef struct
+{
+ __IO uint32_t SYSMEMREMAP; /*!< Offset: 0x000 System memory remap (R/W) */
+ __IO uint32_t PRESETCTRL; /*!< Offset: 0x004 Peripheral reset control (R/W) */
+ __IO uint32_t SYSPLLCTRL; /*!< Offset: 0x008 System PLL control (R/W) */
+ __IO uint32_t SYSPLLSTAT; /*!< Offset: 0x00C System PLL status (R/W ) */
+ uint32_t RESERVED0[4];
+
+ __IO uint32_t SYSOSCCTRL; /*!< Offset: 0x020 System oscillator control (R/W) */
+ __IO uint32_t WDTOSCCTRL; /*!< Offset: 0x024 Watchdog oscillator control (R/W) */
+ uint32_t RESERVED1[2];
+ __IO uint32_t SYSRSTSTAT; /*!< Offset: 0x030 System reset status Register (R/W ) */
+ uint32_t RESERVED2[3];
+ __IO uint32_t SYSPLLCLKSEL; /*!< Offset: 0x040 System PLL clock source select (R/W) */
+ __IO uint32_t SYSPLLCLKUEN; /*!< Offset: 0x044 System PLL clock source update enable (R/W) */
+ uint32_t RESERVED3[10];
+
+ __IO uint32_t MAINCLKSEL; /*!< Offset: 0x070 Main clock source select (R/W) */
+ __IO uint32_t MAINCLKUEN; /*!< Offset: 0x074 Main clock source update enable (R/W) */
+ __IO uint32_t SYSAHBCLKDIV; /*!< Offset: 0x078 System AHB clock divider (R/W) */
+ uint32_t RESERVED4[1];
+
+ __IO uint32_t SYSAHBCLKCTRL; /*!< Offset: 0x080 System AHB clock control (R/W) */
+ uint32_t RESERVED5[4];
+ __IO uint32_t UARTCLKDIV; /*!< Offset: 0x094 UART clock divider (R/W) */
+ uint32_t RESERVED6[18];
+
+ __IO uint32_t CLKOUTSEL; /*!< Offset: 0x0E0 CLKOUT clock source select (R/W) */
+ __IO uint32_t CLKOUTUEN; /*!< Offset: 0x0E4 CLKOUT clock source update enable (R/W) */
+ __IO uint32_t CLKOUTDIV; /*!< Offset: 0x0E8 CLKOUT clock divider (R/W) */
+ uint32_t RESERVED7;
+ __IO uint32_t UARTFRGDIV; /*!< Offset: 0x0F0 UART fractional divider SUB(R/W) */
+ __IO uint32_t UARTFRGMULT; /*!< Offset: 0x0F4 UART fractional divider ADD(R/W) */
+ uint32_t RESERVED8[1];
+ __IO uint32_t EXTTRACECMD; /*!< (@ 0x400480FC) External trace buffer command register */
+ __IO uint32_t PIOPORCAP0; /*!< Offset: 0x100 POR captured PIO status 0 (R/ ) */
+ uint32_t RESERVED9[12];
+ __IO uint32_t IOCONCLKDIV[7]; /*!< (@0x40048134-14C) Peripheral clock x to the IOCON block for programmable glitch filter */
+ __IO uint32_t BODCTRL; /*!< Offset: 0x150 BOD control (R/W) */
+ __IO uint32_t SYSTCKCAL; /*!< Offset: 0x154 System tick counter calibration (R/W) */
+ uint32_t RESERVED10[6];
+ __IO uint32_t IRQLATENCY; /*!< (@ 0x40048170) IRQ delay */
+ __IO uint32_t NMISRC; /*!< (@ 0x40048174) NMI Source Control */
+ __IO uint32_t PINTSEL[8]; /*!< (@ 0x40048178) GPIO Pin Interrupt Select register 0 */
+ uint32_t RESERVED11[27];
+ __IO uint32_t STARTERP0; /*!< Offset: 0x204 Start logic signal enable Register 0 (R/W) */
+ uint32_t RESERVED12[3];
+ __IO uint32_t STARTERP1; /*!< Offset: 0x214 Start logic signal enable Register 0 (R/W) */
+ uint32_t RESERVED13[6];
+ __IO uint32_t PDSLEEPCFG; /*!< Offset: 0x230 Power-down states in Deep-sleep mode (R/W) */
+ __IO uint32_t PDAWAKECFG; /*!< Offset: 0x234 Power-down states after wake-up (R/W) */
+ __IO uint32_t PDRUNCFG; /*!< Offset: 0x238 Power-down configuration Register (R/W) */
+ uint32_t RESERVED14[110];
+ __I uint32_t DEVICE_ID; /*!< Offset: 0x3F4 Device ID (R/ ) */
+} LPC_SYSCON_TypeDef;
+/*@}*/ /* end of group LPC8xx_SYSCON */
+
+
+/**
+ * @brief Product name title=UM10462 Chapter title=LPC8xx I/O configuration Modification date=3/16/2011 Major revision=0 Minor revision=3 (IOCONFIG)
+ */
+
+typedef struct { /*!< (@ 0x40044000) IOCONFIG Structure */
+ __IO uint32_t PIO0_17; /*!< (@ 0x40044000) I/O configuration for pin PIO0_17 */
+ __IO uint32_t PIO0_13; /*!< (@ 0x40044004) I/O configuration for pin PIO0_13 */
+ __IO uint32_t PIO0_12; /*!< (@ 0x40044008) I/O configuration for pin PIO0_12 */
+ __IO uint32_t PIO0_5; /*!< (@ 0x4004400C) I/O configuration for pin PIO0_5 */
+ __IO uint32_t PIO0_4; /*!< (@ 0x40044010) I/O configuration for pin PIO0_4 */
+ __IO uint32_t PIO0_3; /*!< (@ 0x40044014) I/O configuration for pin PIO0_3 */
+ __IO uint32_t PIO0_2; /*!< (@ 0x40044018) I/O configuration for pin PIO0_2 */
+ __IO uint32_t PIO0_11; /*!< (@ 0x4004401C) I/O configuration for pin PIO0_11 */
+ __IO uint32_t PIO0_10; /*!< (@ 0x40044020) I/O configuration for pin PIO0_10 */
+ __IO uint32_t PIO0_16; /*!< (@ 0x40044024) I/O configuration for pin PIO0_16 */
+ __IO uint32_t PIO0_15; /*!< (@ 0x40044028) I/O configuration for pin PIO0_15 */
+ __IO uint32_t PIO0_1; /*!< (@ 0x4004402C) I/O configuration for pin PIO0_1 */
+ __IO uint32_t Reserved; /*!< (@ 0x40044030) I/O configuration for pin (Reserved) */
+ __IO uint32_t PIO0_9; /*!< (@ 0x40044034) I/O configuration for pin PIO0_9 */
+ __IO uint32_t PIO0_8; /*!< (@ 0x40044038) I/O configuration for pin PIO0_8 */
+ __IO uint32_t PIO0_7; /*!< (@ 0x4004403C) I/O configuration for pin PIO0_7 */
+ __IO uint32_t PIO0_6; /*!< (@ 0x40044040) I/O configuration for pin PIO0_6 */
+ __IO uint32_t PIO0_0; /*!< (@ 0x40044044) I/O configuration for pin PIO0_0 */
+ __IO uint32_t PIO0_14; /*!< (@ 0x40044048) I/O configuration for pin PIO0_14 */
+} LPC_IOCON_TypeDef;
+/*@}*/ /* end of group LPC8xx_IOCON */
+
+/**
+ * @brief Product name title=UM10462 Chapter title=LPC8xx Flash programming firmware Major revision=0 Minor revision=3 (FLASHCTRL)
+ */
+typedef struct { /*!< (@ 0x40040000) FLASHCTRL Structure */
+ __I uint32_t RESERVED0[4];
+ __IO uint32_t FLASHCFG; /*!< (@ 0x40040010) Flash configuration register */
+ __I uint32_t RESERVED1[3];
+ __IO uint32_t FMSSTART; /*!< (@ 0x40040020) Signature start address register */
+ __IO uint32_t FMSSTOP; /*!< (@ 0x40040024) Signature stop-address register */
+ __I uint32_t RESERVED2;
+ __I uint32_t FMSW0;
+} LPC_FLASHCTRL_TypeDef;
+/*@}*/ /* end of group LPC8xx_FLASHCTRL */
+
+
+/*------------- Power Management Unit (PMU) --------------------------*/
+/** @addtogroup LPC8xx_PMU LPC8xx Power Management Unit
+ @{
+*/
+typedef struct
+{
+ __IO uint32_t PCON; /*!< Offset: 0x000 Power control Register (R/W) */
+ __IO uint32_t GPREG0; /*!< Offset: 0x004 General purpose Register 0 (R/W) */
+ __IO uint32_t GPREG1; /*!< Offset: 0x008 General purpose Register 1 (R/W) */
+ __IO uint32_t GPREG2; /*!< Offset: 0x00C General purpose Register 2 (R/W) */
+ __IO uint32_t GPREG3; /*!< Offset: 0x010 General purpose Register 3 (R/W) */
+ __IO uint32_t DPDCTRL; /*!< Offset: 0x014 Deep power-down control register (R/W) */
+} LPC_PMU_TypeDef;
+/*@}*/ /* end of group LPC8xx_PMU */
+
+
+/*------------- Switch Matrix Port --------------------------*/
+/** @addtogroup LPC8xx_SWM LPC8xx Switch Matrix Port
+ @{
+*/
+typedef struct
+{
+ union {
+ __IO uint32_t PINASSIGN[9];
+ struct {
+ __IO uint32_t PINASSIGN0;
+ __IO uint32_t PINASSIGN1;
+ __IO uint32_t PINASSIGN2;
+ __IO uint32_t PINASSIGN3;
+ __IO uint32_t PINASSIGN4;
+ __IO uint32_t PINASSIGN5;
+ __IO uint32_t PINASSIGN6;
+ __IO uint32_t PINASSIGN7;
+ __IO uint32_t PINASSIGN8;
+ };
+ };
+ __I uint32_t RESERVED0[103];
+ __IO uint32_t PINENABLE0;
+} LPC_SWM_TypeDef;
+/*@}*/ /* end of group LPC8xx_SWM */
+
+
+// ------------------------------------------------------------------------------------------------
+// ----- GPIO_PORT -----
+// ------------------------------------------------------------------------------------------------
+
+/**
+ * @brief Product name title=UM10462 Chapter title=LPC8xx GPIO Modification date=3/17/2011 Major revision=0 Minor revision=3 (GPIO_PORT)
+ */
+
+typedef struct {
+ __IO uint8_t B0[18]; /*!< (@ 0xA0000000) Byte pin registers port 0 */
+ __I uint16_t RESERVED0[2039];
+ __IO uint32_t W0[18]; /*!< (@ 0xA0001000) Word pin registers port 0 */
+ uint32_t RESERVED1[1006];
+ __IO uint32_t DIR0; /* 0x2000 */
+ uint32_t RESERVED2[31];
+ __IO uint32_t MASK0; /* 0x2080 */
+ uint32_t RESERVED3[31];
+ __IO uint32_t PIN0; /* 0x2100 */
+ uint32_t RESERVED4[31];
+ __IO uint32_t MPIN0; /* 0x2180 */
+ uint32_t RESERVED5[31];
+ __IO uint32_t SET0; /* 0x2200 */
+ uint32_t RESERVED6[31];
+ __O uint32_t CLR0; /* 0x2280 */
+ uint32_t RESERVED7[31];
+ __O uint32_t NOT0; /* 0x2300 */
+
+} LPC_GPIO_PORT_TypeDef;
+
+
+// ------------------------------------------------------------------------------------------------
+// ----- PIN_INT -----
+// ------------------------------------------------------------------------------------------------
+
+/**
+ * @brief Product name title=UM10462 Chapter title=LPC8xx GPIO Modification date=3/17/2011 Major revision=0 Minor revision=3 (PIN_INT)
+ */
+
+typedef struct { /*!< (@ 0xA0004000) PIN_INT Structure */
+ __IO uint32_t ISEL; /*!< (@ 0xA0004000) Pin Interrupt Mode register */
+ __IO uint32_t IENR; /*!< (@ 0xA0004004) Pin Interrupt Enable (Rising) register */
+ __IO uint32_t SIENR; /*!< (@ 0xA0004008) Set Pin Interrupt Enable (Rising) register */
+ __IO uint32_t CIENR; /*!< (@ 0xA000400C) Clear Pin Interrupt Enable (Rising) register */
+ __IO uint32_t IENF; /*!< (@ 0xA0004010) Pin Interrupt Enable Falling Edge / Active Level register */
+ __IO uint32_t SIENF; /*!< (@ 0xA0004014) Set Pin Interrupt Enable Falling Edge / Active Level register */
+ __IO uint32_t CIENF; /*!< (@ 0xA0004018) Clear Pin Interrupt Enable Falling Edge / Active Level address */
+ __IO uint32_t RISE; /*!< (@ 0xA000401C) Pin Interrupt Rising Edge register */
+ __IO uint32_t FALL; /*!< (@ 0xA0004020) Pin Interrupt Falling Edge register */
+ __IO uint32_t IST; /*!< (@ 0xA0004024) Pin Interrupt Status register */
+ __IO uint32_t PMCTRL; /*!< (@ 0xA0004028) GPIO pattern match interrupt control register */
+ __IO uint32_t PMSRC; /*!< (@ 0xA000402C) GPIO pattern match interrupt bit-slice source register */
+ __IO uint32_t PMCFG; /*!< (@ 0xA0004030) GPIO pattern match interrupt bit slice configuration register */
+} LPC_PIN_INT_TypeDef;
+
+
+/*------------- CRC Engine (CRC) -----------------------------------------*/
+/** @addtogroup LPC8xx_CRC
+ @{
+*/
+typedef struct
+{
+ __IO uint32_t MODE;
+ __IO uint32_t SEED;
+ union {
+ __I uint32_t SUM;
+ __O uint32_t WR_DATA_DWORD;
+ __O uint16_t WR_DATA_WORD;
+ uint16_t RESERVED_WORD;
+ __O uint8_t WR_DATA_BYTE;
+ uint8_t RESERVED_BYTE[3];
+ };
+} LPC_CRC_TypeDef;
+/*@}*/ /* end of group LPC8xx_CRC */
+
+/*------------- Comparator (CMP) --------------------------------------------------*/
+/** @addtogroup LPC8xx_CMP LPC8xx Comparator
+ @{
+*/
+typedef struct { /*!< (@ 0x40024000) CMP Structure */
+ __IO uint32_t CTRL; /*!< (@ 0x40024000) Comparator control register */
+ __IO uint32_t LAD; /*!< (@ 0x40024004) Voltage ladder register */
+} LPC_CMP_TypeDef;
+/*@}*/ /* end of group LPC8xx_CMP */
+
+
+/*------------- Wakeup Timer (WKT) --------------------------------------------------*/
+/** @addtogroup LPC8xx_WKT
+ @{
+*/
+typedef struct { /*!< (@ 0x40028000) WKT Structure */
+ __IO uint32_t CTRL; /*!< (@ 0x40028000) Alarm/Wakeup Timer Control register */
+ uint32_t Reserved[2];
+ __IO uint32_t COUNT; /*!< (@ 0x4002800C) Alarm/Wakeup TImer counter register */
+} LPC_WKT_TypeDef;
+/*@}*/ /* end of group LPC8xx_WKT */
+
+
+/*------------- Multi-Rate Timer(MRT) --------------------------------------------------*/
+typedef struct {
+__IO uint32_t INTVAL;
+__IO uint32_t TIMER;
+__IO uint32_t CTRL;
+__IO uint32_t STAT;
+} MRT_Channel_cfg_Type;
+
+typedef struct {
+ MRT_Channel_cfg_Type Channel[4];
+ uint32_t Reserved0[1];
+ __IO uint32_t IDLE_CH;
+ __IO uint32_t IRQ_FLAG;
+} LPC_MRT_TypeDef;
+
+
+/*------------- Universal Asynchronous Receiver Transmitter (USART) -----------*/
+/** @addtogroup LPC8xx_UART LPC8xx Universal Asynchronous Receiver/Transmitter
+ @{
+*/
+/**
+ * @brief Product name title=LPC8xx MCU Chapter title=USART Modification date=4/18/2012 Major revision=0 Minor revision=9 (USART)
+ */
+typedef struct
+{
+ __IO uint32_t CFG; /* 0x00 */
+ __IO uint32_t CTRL;
+ __IO uint32_t STAT;
+ __IO uint32_t INTENSET;
+ __O uint32_t INTENCLR; /* 0x10 */
+ __I uint32_t RXDATA;
+ __I uint32_t RXDATA_STAT;
+ __IO uint32_t TXDATA;
+ __IO uint32_t BRG; /* 0x20 */
+ __IO uint32_t INTSTAT;
+} LPC_USART_TypeDef;
+
+/*@}*/ /* end of group LPC8xx_USART */
+
+
+/*------------- Synchronous Serial Interface Controller (SPI) -----------------------*/
+/** @addtogroup LPC8xx_SPI LPC8xx Synchronous Serial Port
+ @{
+*/
+typedef struct
+{
+ __IO uint32_t CFG; /* 0x00 */
+ __IO uint32_t DLY;
+ __IO uint32_t STAT;
+ __IO uint32_t INTENSET;
+ __O uint32_t INTENCLR; /* 0x10 */
+ __I uint32_t RXDAT;
+ __IO uint32_t TXDATCTL;
+ __IO uint32_t TXDAT;
+ __IO uint32_t TXCTRL; /* 0x20 */
+ __IO uint32_t DIV;
+ __I uint32_t INTSTAT;
+} LPC_SPI_TypeDef;
+/*@}*/ /* end of group LPC8xx_SPI */
+
+
+/*------------- Inter-Integrated Circuit (I2C) -------------------------------*/
+/** @addtogroup LPC8xx_I2C I2C-Bus Interface
+ @{
+*/
+typedef struct
+{
+ __IO uint32_t CFG; /* 0x00 */
+ __IO uint32_t STAT;
+ __IO uint32_t INTENSET;
+ __O uint32_t INTENCLR;
+ __IO uint32_t TIMEOUT; /* 0x10 */
+ __IO uint32_t DIV;
+ __IO uint32_t INTSTAT;
+ uint32_t Reserved0[1];
+ __IO uint32_t MSTCTL; /* 0x20 */
+ __IO uint32_t MSTTIME;
+ __IO uint32_t MSTDAT;
+ uint32_t Reserved1[5];
+ __IO uint32_t SLVCTL; /* 0x40 */
+ __IO uint32_t SLVDAT;
+ __IO uint32_t SLVADR0;
+ __IO uint32_t SLVADR1;
+ __IO uint32_t SLVADR2; /* 0x50 */
+ __IO uint32_t SLVADR3;
+ __IO uint32_t SLVQUAL0;
+ uint32_t Reserved2[9];
+ __I uint32_t MONRXDAT; /* 0x80 */
+} LPC_I2C_TypeDef;
+
+/*@}*/ /* end of group LPC8xx_I2C */
+
+/**
+ * @brief State Configurable Timer (SCT) (SCT)
+ */
+
+/**
+ * @brief Product name title=UM10430 Chapter title=LPC8xx State Configurable Timer (SCT) Modification date=1/18/2011 Major revision=0 Minor revision=7 (SCT)
+ */
+
+#define CONFIG_SCT_nEV (6) /* Number of events */
+#define CONFIG_SCT_nRG (5) /* Number of match/compare registers */
+#define CONFIG_SCT_nOU (4) /* Number of outputs */
+
+typedef struct
+{
+ __IO uint32_t CONFIG; /* 0x000 Configuration Register */
+ union {
+ __IO uint32_t CTRL_U; /* 0x004 Control Register */
+ struct {
+ __IO uint16_t CTRL_L; /* 0x004 low control register */
+ __IO uint16_t CTRL_H; /* 0x006 high control register */
+ };
+ };
+ __IO uint16_t LIMIT_L; /* 0x008 limit register for counter L */
+ __IO uint16_t LIMIT_H; /* 0x00A limit register for counter H */
+ __IO uint16_t HALT_L; /* 0x00C halt register for counter L */
+ __IO uint16_t HALT_H; /* 0x00E halt register for counter H */
+ __IO uint16_t STOP_L; /* 0x010 stop register for counter L */
+ __IO uint16_t STOP_H; /* 0x012 stop register for counter H */
+ __IO uint16_t START_L; /* 0x014 start register for counter L */
+ __IO uint16_t START_H; /* 0x016 start register for counter H */
+ uint32_t RESERVED1[10]; /* 0x018-0x03C reserved */
+ union {
+ __IO uint32_t COUNT_U; /* 0x040 counter register */
+ struct {
+ __IO uint16_t COUNT_L; /* 0x040 counter register for counter L */
+ __IO uint16_t COUNT_H; /* 0x042 counter register for counter H */
+ };
+ };
+ __IO uint16_t STATE_L; /* 0x044 state register for counter L */
+ __IO uint16_t STATE_H; /* 0x046 state register for counter H */
+ __I uint32_t INPUT; /* 0x048 input register */
+ __IO uint16_t REGMODE_L; /* 0x04C match - capture registers mode register L */
+ __IO uint16_t REGMODE_H; /* 0x04E match - capture registers mode register H */
+ __IO uint32_t OUTPUT; /* 0x050 output register */
+ __IO uint32_t OUTPUTDIRCTRL; /* 0x054 Output counter direction Control Register */
+ __IO uint32_t RES; /* 0x058 conflict resolution register */
+ uint32_t RESERVED2[37]; /* 0x05C-0x0EC reserved */
+ __IO uint32_t EVEN; /* 0x0F0 event enable register */
+ __IO uint32_t EVFLAG; /* 0x0F4 event flag register */
+ __IO uint32_t CONEN; /* 0x0F8 conflict enable register */
+ __IO uint32_t CONFLAG; /* 0x0FC conflict flag register */
+
+ union {
+ __IO union { /* 0x100-... Match / Capture value */
+ uint32_t U; /* SCTMATCH[i].U Unified 32-bit register */
+ struct {
+ uint16_t L; /* SCTMATCH[i].L Access to L value */
+ uint16_t H; /* SCTMATCH[i].H Access to H value */
+ };
+ } MATCH[CONFIG_SCT_nRG];
+ __I union {
+ uint32_t U; /* SCTCAP[i].U Unified 32-bit register */
+ struct {
+ uint16_t L; /* SCTCAP[i].L Access to H value */
+ uint16_t H; /* SCTCAP[i].H Access to H value */
+ };
+ } CAP[CONFIG_SCT_nRG];
+ };
+
+
+ uint32_t RESERVED3[32-CONFIG_SCT_nRG]; /* ...-0x17C reserved */
+
+ union {
+ __IO uint16_t MATCH_L[CONFIG_SCT_nRG]; /* 0x180-... Match Value L counter */
+ __I uint16_t CAP_L[CONFIG_SCT_nRG]; /* 0x180-... Capture Value L counter */
+ };
+ uint16_t RESERVED4[32-CONFIG_SCT_nRG]; /* ...-0x1BE reserved */
+ union {
+ __IO uint16_t MATCH_H[CONFIG_SCT_nRG]; /* 0x1C0-... Match Value H counter */
+ __I uint16_t CAP_H[CONFIG_SCT_nRG]; /* 0x1C0-... Capture Value H counter */
+ };
+
+ uint16_t RESERVED5[32-CONFIG_SCT_nRG]; /* ...-0x1FE reserved */
+
+
+ union {
+ __IO union { /* 0x200-... Match Reload / Capture Control value */
+ uint32_t U; /* SCTMATCHREL[i].U Unified 32-bit register */
+ struct {
+ uint16_t L; /* SCTMATCHREL[i].L Access to L value */
+ uint16_t H; /* SCTMATCHREL[i].H Access to H value */
+ };
+ } MATCHREL[CONFIG_SCT_nRG];
+ __IO union {
+ uint32_t U; /* SCTCAPCTRL[i].U Unified 32-bit register */
+ struct {
+ uint16_t L; /* SCTCAPCTRL[i].L Access to H value */
+ uint16_t H; /* SCTCAPCTRL[i].H Access to H value */
+ };
+ } CAPCTRL[CONFIG_SCT_nRG];
+ };
+
+ uint32_t RESERVED6[32-CONFIG_SCT_nRG]; /* ...-0x27C reserved */
+
+ union {
+ __IO uint16_t MATCHREL_L[CONFIG_SCT_nRG]; /* 0x280-... Match Reload value L counter */
+ __IO uint16_t CAPCTRL_L[CONFIG_SCT_nRG]; /* 0x280-... Capture Control value L counter */
+ };
+ uint16_t RESERVED7[32-CONFIG_SCT_nRG]; /* ...-0x2BE reserved */
+ union {
+ __IO uint16_t MATCHREL_H[CONFIG_SCT_nRG]; /* 0x2C0-... Match Reload value H counter */
+ __IO uint16_t CAPCTRL_H[CONFIG_SCT_nRG]; /* 0x2C0-... Capture Control value H counter */
+ };
+ uint16_t RESERVED8[32-CONFIG_SCT_nRG]; /* ...-0x2FE reserved */
+
+ __IO struct { /* 0x300-0x3FC SCTEVENT[i].STATE / SCTEVENT[i].CTRL*/
+ uint32_t STATE; /* Event State Register */
+ uint32_t CTRL; /* Event Control Register */
+ } EVENT[CONFIG_SCT_nEV];
+
+ uint32_t RESERVED9[128-2*CONFIG_SCT_nEV]; /* ...-0x4FC reserved */
+
+ __IO struct { /* 0x500-0x57C SCTOUT[i].SET / SCTOUT[i].CLR */
+ uint32_t SET; /* Output n Set Register */
+ uint32_t CLR; /* Output n Clear Register */
+ } OUT[CONFIG_SCT_nOU];
+
+ uint32_t RESERVED10[191-2*CONFIG_SCT_nOU]; /* ...-0x7F8 reserved */
+
+ __I uint32_t MODULECONTENT; /* 0x7FC Module Content */
+
+} LPC_SCT_TypeDef;
+/*@}*/ /* end of group LPC8xx_SCT */
+
+
+/*------------- Watchdog Timer (WWDT) -----------------------------------------*/
+/** @addtogroup LPC8xx_WDT LPC8xx WatchDog Timer
+ @{
+*/
+typedef struct
+{
+ __IO uint32_t MOD; /*!< Offset: 0x000 Watchdog mode register (R/W) */
+ __IO uint32_t TC; /*!< Offset: 0x004 Watchdog timer constant register (R/W) */
+ __O uint32_t FEED; /*!< Offset: 0x008 Watchdog feed sequence register (W) */
+ __I uint32_t TV; /*!< Offset: 0x00C Watchdog timer value register (R) */
+ uint32_t RESERVED; /*!< Offset: 0x010 RESERVED */
+ __IO uint32_t WARNINT; /*!< Offset: 0x014 Watchdog timer warning int. register (R/W) */
+ __IO uint32_t WINDOW; /*!< Offset: 0x018 Watchdog timer window value register (R/W) */
+} LPC_WWDT_TypeDef;
+/*@}*/ /* end of group LPC8xx_WDT */
+
+
+#if defined ( __CC_ARM )
+#pragma no_anon_unions
+#endif
+
+/******************************************************************************/
+/* Peripheral memory map */
+/******************************************************************************/
+/* Base addresses */
+#define LPC_FLASH_BASE (0x00000000UL)
+#define LPC_RAM_BASE (0x10000000UL)
+#define LPC_ROM_BASE (0x1FFF0000UL)
+#define LPC_APB0_BASE (0x40000000UL)
+#define LPC_AHB_BASE (0x50000000UL)
+
+/* APB0 peripherals */
+#define LPC_WWDT_BASE (LPC_APB0_BASE + 0x00000)
+#define LPC_MRT_BASE (LPC_APB0_BASE + 0x04000)
+#define LPC_WKT_BASE (LPC_APB0_BASE + 0x08000)
+#define LPC_SWM_BASE (LPC_APB0_BASE + 0x0C000)
+#define LPC_PMU_BASE (LPC_APB0_BASE + 0x20000)
+#define LPC_CMP_BASE (LPC_APB0_BASE + 0x24000)
+
+#define LPC_FLASHCTRL_BASE (LPC_APB0_BASE + 0x40000)
+#define LPC_IOCON_BASE (LPC_APB0_BASE + 0x44000)
+#define LPC_SYSCON_BASE (LPC_APB0_BASE + 0x48000)
+#define LPC_I2C_BASE (LPC_APB0_BASE + 0x50000)
+#define LPC_SPI0_BASE (LPC_APB0_BASE + 0x58000)
+#define LPC_SPI1_BASE (LPC_APB0_BASE + 0x5C000)
+#define LPC_USART0_BASE (LPC_APB0_BASE + 0x64000)
+#define LPC_USART1_BASE (LPC_APB0_BASE + 0x68000)
+#define LPC_USART2_BASE (LPC_APB0_BASE + 0x6C000)
+
+/* AHB peripherals */
+#define LPC_CRC_BASE (LPC_AHB_BASE + 0x00000)
+#define LPC_SCT_BASE (LPC_AHB_BASE + 0x04000)
+
+#define LPC_GPIO_PORT_BASE (0xA0000000)
+#define LPC_PIN_INT_BASE (LPC_GPIO_PORT_BASE + 0x4000)
+
+/******************************************************************************/
+/* Peripheral declaration */
+/******************************************************************************/
+#define LPC_WWDT ((LPC_WWDT_TypeDef *) LPC_WWDT_BASE )
+#define LPC_MRT ((LPC_MRT_TypeDef *) LPC_MRT_BASE )
+
+
+#define LPC_WKT ((LPC_WKT_TypeDef *) LPC_WKT_BASE )
+#define LPC_SWM ((LPC_SWM_TypeDef *) LPC_SWM_BASE )
+#define LPC_PMU ((LPC_PMU_TypeDef *) LPC_PMU_BASE )
+#define LPC_CMP ((LPC_CMP_TypeDef *) LPC_CMP_BASE )
+
+#define LPC_FLASHCTRL ((LPC_FLASHCTRL_TypeDef *) LPC_FLASHCTRL_BASE )
+#define LPC_IOCON ((LPC_IOCON_TypeDef *) LPC_IOCON_BASE )
+#define LPC_SYSCON ((LPC_SYSCON_TypeDef *) LPC_SYSCON_BASE)
+#define LPC_I2C ((LPC_I2C_TypeDef *) LPC_I2C_BASE )
+#define LPC_SPI0 ((LPC_SPI_TypeDef *) LPC_SPI0_BASE )
+#define LPC_SPI1 ((LPC_SPI_TypeDef *) LPC_SPI1_BASE )
+#define LPC_USART0 ((LPC_USART_TypeDef *) LPC_USART0_BASE )
+#define LPC_USART1 ((LPC_USART_TypeDef *) LPC_USART1_BASE )
+#define LPC_USART2 ((LPC_USART_TypeDef *) LPC_USART2_BASE )
+
+#define LPC_CRC ((LPC_CRC_TypeDef *) LPC_CRC_BASE )
+#define LPC_SCT ((LPC_SCT_TypeDef *) LPC_SCT_BASE )
+
+#define LPC_GPIO_PORT ((LPC_GPIO_PORT_TypeDef *) LPC_GPIO_PORT_BASE )
+#define LPC_PIN_INT ((LPC_PIN_INT_TypeDef *) LPC_PIN_INT_BASE )
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LPC8xx_H__ */
diff --git a/os/hal/platforms/LPC8xx/ext_lld.c b/os/hal/platforms/LPC8xx/ext_lld.c new file mode 100644 index 000000000..81e09c717 --- /dev/null +++ b/os/hal/platforms/LPC8xx/ext_lld.c @@ -0,0 +1,168 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/ext_lld.c
+ * @brief LPC8xx EXT subsystem low level driver source.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+#include "ext_lld_isr.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/**
+ * @brief EXTD1 driver identifier.
+ */
+EXTDriver EXTD1;
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level EXT driver initialization.
+ *
+ * @notapi
+ */
+void ext_lld_init(void) {
+
+ /* Driver initialization.*/
+ extObjectInit(&EXTD1);
+}
+
+/**
+ * @brief Configures and activates the EXT peripheral.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ *
+ * @notapi
+ */
+void ext_lld_start(EXTDriver *extp) {
+ int i;
+
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<6);
+ /* Configuration of automatic channels.*/
+ for (i = 0; i < EXT_MAX_CHANNELS; i++)
+ if (extp->config->channels[i].mode & EXT_CH_MODE_AUTOSTART)
+ ext_lld_channel_enable(extp, i);
+ else
+ ext_lld_channel_disable(extp, i);
+}
+
+/**
+ * @brief Deactivates the EXT peripheral.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ *
+ * @notapi
+ */
+void ext_lld_stop(EXTDriver *extp) {
+ int i;
+
+ if (extp->state == EXT_ACTIVE)
+ for (i = 0; i < EXT_MAX_CHANNELS; i++)
+ ext_lld_exti_irq_disable(i);
+
+ LPC_PIN_INT->ISEL = 0;
+ LPC_PIN_INT->CIENR = EXT_CHANNELS_MASK;
+ LPC_PIN_INT->RISE = EXT_CHANNELS_MASK;
+ LPC_PIN_INT->FALL = EXT_CHANNELS_MASK;
+ LPC_PIN_INT->IST = EXT_CHANNELS_MASK;
+
+ /* Leave clock enabled, its shared with GPIO */
+ /*LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<6);*/
+}
+
+/**
+ * @brief Enables an EXT channel.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be enabled
+ *
+ * @notapi
+ */
+void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel) {
+
+ /* program the IOpin for this channel */
+ LPC_SYSCON->PINTSEL[channel] = extp->config->channels[channel].iopin;
+
+ /* Programming edge irq enables */
+ if (extp->config->channels[channel].mode & EXT_CH_MODE_RISING_EDGE)
+ LPC_PIN_INT->SIENR = (1 << channel);
+ else
+ LPC_PIN_INT->CIENR = (1 << channel);
+
+ if (extp->config->channels[channel].mode & EXT_CH_MODE_FALLING_EDGE)
+ LPC_PIN_INT->SIENF = (1 << channel);
+ else
+ LPC_PIN_INT->CIENF = (1 << channel);
+
+ LPC_PIN_INT->RISE = (1<<channel);
+ LPC_PIN_INT->FALL = (1<<channel);
+ LPC_PIN_INT->IST = (1<<channel);
+
+ ext_lld_exti_irq_enable( channel );
+}
+
+/**
+ * @brief Disables an EXT channel.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be disabled
+ *
+ * @notapi
+ */
+void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel) {
+ (void)extp;
+
+ ext_lld_exti_irq_disable(channel);
+
+ LPC_PIN_INT->ISEL &= ~(1 << channel);
+ LPC_PIN_INT->CIENR = (1 << channel);
+ LPC_PIN_INT->RISE = (1 << channel);
+ LPC_PIN_INT->FALL = (1 << channel);
+ LPC_PIN_INT->IST = (1 << channel);
+}
+
+#endif /* HAL_USE_EXT */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/ext_lld.h b/os/hal/platforms/LPC8xx/ext_lld.h new file mode 100644 index 000000000..af0f36b50 --- /dev/null +++ b/os/hal/platforms/LPC8xx/ext_lld.h @@ -0,0 +1,152 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/ext_lld.h
+ * @brief LPC8xx EXT subsystem low level driver header.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#ifndef _EXT_LLD_H_
+#define _EXT_LLD_H_
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @brief Available number of EXT channels.
+ */
+#define EXT_MAX_CHANNELS 8
+
+/**
+ * @brief Mask of the available channels.
+ */
+#define EXT_CHANNELS_MASK ((1 << EXT_MAX_CHANNELS) - 1)
+
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief EXT channel identifier.
+ */
+typedef uint32_t expchannel_t;
+
+/**
+
+ * @brief EXT channel callback reason.
+ */
+typedef uint32_t expreason_t;
+
+/**
+ * @brief Type of an EXT generic notification callback.
+ *
+ * @param[in] extp pointer to the @p EXPDriver object triggering the
+ * callback
+ */
+typedef void (*extcallback_t)(EXTDriver *extp,
+ expchannel_t channel,
+ expreason_t reason);
+
+/**
+ * @brief Channel configuration structure.
+ */
+typedef struct {
+ /**
+ * @brief Channel mode.
+ */
+ uint8_t mode;
+ /**
+ * @brief IO Pin.
+ */
+ uint8_t iopin;
+ /**
+ * @brief Channel callback.
+ */
+ extcallback_t cb;
+} EXTChannelConfig;
+
+/**
+ * @brief Driver configuration structure.
+ * @note It could be empty on some architectures.
+ */
+typedef struct {
+ /**
+ * @brief Channel configurations.
+ */
+ EXTChannelConfig channels[EXT_MAX_CHANNELS];
+ /* End of the mandatory fields.*/
+} EXTConfig;
+
+/**
+ * @brief Structure representing an EXT driver.
+ */
+struct EXTDriver {
+ /**
+ * @brief Driver state.
+ */
+ extstate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const EXTConfig *config;
+ /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+extern EXTDriver EXTD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void ext_lld_init(void);
+ void ext_lld_start(EXTDriver *extp);
+ void ext_lld_stop(EXTDriver *extp);
+ void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
+ void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EXT */
+
+#endif /* _EXT_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/ext_lld_isr.c b/os/hal/platforms/LPC8xx/ext_lld_isr.c new file mode 100644 index 000000000..312d61f9f --- /dev/null +++ b/os/hal/platforms/LPC8xx/ext_lld_isr.c @@ -0,0 +1,194 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/ext_lld_isr.c
+ * @brief LPC8xx EXT subsystem low level driver ISR code.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+#include "ext_lld_isr.h"
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+static void ext_lld_interrupt( uint32_t n ) {
+ uint32_t reason;
+
+ reason = ((LPC_PIN_INT->RISE)>> n ) & 0x01;
+ reason |= ((LPC_PIN_INT->FALL)>>(n-1)) & 0x02;
+ LPC_PIN_INT->RISE = (1<<n);
+ LPC_PIN_INT->FALL = (1<<n);
+ LPC_PIN_INT->IST = (1<<n);
+ EXTD1.config->channels[n].cb(&EXTD1, n, reason);
+}
+
+/**
+ * @brief EXT[0] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorA0) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(0);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[1] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorA4) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(1);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[2] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorA8) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(2);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[3] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorAC) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(3);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[4] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorB0) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(4);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[5] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorB4) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(5);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[6] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorB8) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(6);
+ CH_IRQ_EPILOGUE();
+}
+
+/**
+ * @brief EXT[7] interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(VectorBC) {
+
+ CH_IRQ_PROLOGUE();
+ ext_lld_interrupt(7);
+ CH_IRQ_EPILOGUE();
+}
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+static const uint8_t LPC8xx_EXT_EXTIn_IRQ_PRIORITY[] =
+ { LPC8xx_EXT_EXTI0_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI1_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI2_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI3_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI4_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI5_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI6_IRQ_PRIORITY,
+ LPC8xx_EXT_EXTI7_IRQ_PRIORITY };
+
+/**
+ * @brief Enables EXTI IRQ sources.
+ *
+ * @notapi
+ */
+void ext_lld_exti_irq_enable( uint32_t exti_n ) {
+
+ nvicEnableVector(PININT0_IRQn + exti_n,
+ CORTEX_PRIORITY_MASK(LPC8xx_EXT_EXTIn_IRQ_PRIORITY[exti_n]));
+}
+
+/**
+ * @brief Disables EXTI IRQ sources.
+ *
+ * @notapi
+ */
+void ext_lld_exti_irq_disable( uint32_t exti_n ) {
+
+ nvicDisableVector(PININT0_IRQn + exti_n);
+}
+
+#endif /* HAL_USE_EXT */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/ext_lld_isr.h b/os/hal/platforms/LPC8xx/ext_lld_isr.h new file mode 100644 index 000000000..c2aa52655 --- /dev/null +++ b/os/hal/platforms/LPC8xx/ext_lld_isr.h @@ -0,0 +1,129 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/ext_lld_isr.h
+ * @brief LPC8xx EXT subsystem low level driver ISR header.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#ifndef _EXT_LLD_ISR_H_
+#define _EXT_LLD_ISR_H_
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @name Configuration options
+ * @{
+ */
+/**
+ * @brief EXTI0 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI0_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI0_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI1 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI1_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI2 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI2_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI2_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI3 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI3_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI3_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI4 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI4_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI4_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI5 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI5_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI5_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI6 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI6_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI6_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief EXTI7 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_EXT_EXTI7_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_EXT_EXTI7_IRQ_PRIORITY 3
+#endif
+
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void ext_lld_exti_irq_enable( uint32_t exti_n );
+ void ext_lld_exti_irq_disable( uint32_t exti_n );
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EXT */
+
+#endif /* _EXT_LLD_ISR_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/gpt_lld.c b/os/hal/platforms/LPC8xx/gpt_lld.c new file mode 100644 index 000000000..44601272b --- /dev/null +++ b/os/hal/platforms/LPC8xx/gpt_lld.c @@ -0,0 +1,278 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/gpt_lld.c
+ * @brief LPC8xx GPT subsystem low level driver source.
+ *
+ * @addtogroup GPT
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_GPT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/**
+ * @brief GPT1 driver identifier.
+ * @note The driver GPT1 allocates MRT channel0 when enabled.
+ */
+#if LPC8xx_GPT_USE_MRT0 || defined(__DOXYGEN__)
+GPTDriver GPTD1;
+#endif
+
+/**
+ * @brief GPT2 driver identifier.
+ * @note The driver GPT1 allocates MRT channel1 when enabled.
+ */
+#if LPC8xx_GPT_USE_MRT1 || defined(__DOXYGEN__)
+GPTDriver GPTD2;
+#endif
+
+/**
+ * @brief GPT3 driver identifier.
+ * @note The driver GPT1 allocates MRT channel2 when enabled.
+ */
+#if LPC8xx_GPT_USE_MRT2 || defined(__DOXYGEN__)
+GPTDriver GPTD3;
+#endif
+
+/**
+ * @brief GPT4 driver identifier.
+ * @note The driver GPT1 allocates MRT channel3 when enabled.
+ */
+#if LPC8xx_GPT_USE_MRT3 || defined(__DOXYGEN__)
+GPTDriver GPTD4;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+static uint32_t clk_enabled;
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+/**
+ * @brief Shared IRQ handler.
+ *
+ * @param[in] gptp pointer to a @p GPTDriver object
+ * @param[in] irq_flag irq flag bit
+ */
+
+static void gpt_lld_serve_interrupt( GPTDriver *gptp ) {
+
+ if (gptp->tmr->STAT & 0x01) {
+ gptp->tmr->STAT |= 0x01;
+
+ if (gptp->state == GPT_ONESHOT) {
+ gptp->state = GPT_READY; /* Back in GPT_READY state. */
+ }
+ gptp->config->callback(gptp);
+ }
+ return;
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/**
+
+ * @brief MRT IRQ handler.
+ *
+ */
+CH_IRQ_HANDLER(Vector68) {
+ CH_IRQ_PROLOGUE();
+
+#if LPC8xx_GPT_USE_MRT0
+ gpt_lld_serve_interrupt( &GPTD1 );
+#endif
+
+#if LPC8xx_GPT_USE_MRT1
+ gpt_lld_serve_interrupt( &GPTD2 );
+#endif
+
+#if LPC8xx_GPT_USE_MRT2
+ gpt_lld_serve_interrupt( &GPTD3 );
+#endif
+
+#if LPC8xx_GPT_USE_MRT3
+ gpt_lld_serve_interrupt( &GPTD4 );
+#endif
+
+ CH_IRQ_EPILOGUE();
+}
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level GPT driver initialization.
+ *
+ * @notapi
+ */
+void gpt_lld_init(void) {
+
+#if LPC8xx_GPT_USE_MRT0
+ GPTD1.tmr = &(LPC_MRT->Channel[0]);
+ gptObjectInit(&GPTD1);
+ GPTD1.mask = (1<<0);
+#endif
+
+#if LPC8xx_GPT_USE_MRT1
+ GPTD2.tmr = &(LPC_MRT->Channel[1]);
+ gptObjectInit(&GPTD2);
+ GPTD1.mask = (1<<1);
+#endif
+
+#if LPC8xx_GPT_USE_MRT2
+ GPTD3.tmr = &(LPC_MRT->Channel[2]);
+ gptObjectInit(&GPTD3);
+ GPTD1.mask = (1<<2);
+#endif
+
+#if LPC8xx_GPT_USE_MRT3
+ GPTD4.tmr = &(LPC_MRT->Channel[3]);
+ gptObjectInit(&GPTD4);
+ GPTD1.mask = (1<<3);
+#endif
+
+ clk_enabled = FALSE;
+ return;
+}
+
+/**
+ * @brief Configures and activates a GPT channel.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ *
+ * @notapi
+ */
+void gpt_lld_start(GPTDriver *gptp) {
+
+ if( !clk_enabled ) {
+
+ /* Enable clock & reset MRT */
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<10);
+ LPC_SYSCON->PRESETCTRL &= ~(1<<7);
+ LPC_SYSCON->PRESETCTRL |= (1<<7);
+
+ nvicEnableVector(MRT_IRQn,
+ CORTEX_PRIORITY_MASK(LPC8xx_GPT_MRT_IRQ_PRIORITY));
+
+ clk_enabled |= gptp->mask;
+ }
+
+ /* Prescaler value calculation.*/
+ gptp->pr = (LPC8xx_SYSCLK / gptp->config->frequency);
+ chDbgAssert((gptp->pr * gptp->config->frequency) == LPC8xx_SYSCLK,
+ "gpt_lld_start(), #1", "invalid frequency");
+
+ /* MRT Channel configuration.*/
+ gptp->tmr->CTRL = 0;
+ gptp->tmr->STAT |= 1;
+
+}
+
+/**
+ * @brief Deactivates a GPT channel.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ *
+ * @notapi
+ */
+void gpt_lld_stop(GPTDriver *gptp) {
+
+ /* Shared peripheral -
+ mark this channel as disabled */
+ clk_enabled &= ~gptp->mask;
+
+ /* All channels disabled? */
+ if( !clk_enabled )
+ {
+ /* Disable periheral */
+ nvicDisableVector(MRT_IRQn);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<10);
+ }
+
+ return;
+}
+
+/**
+ * @brief Starts the timer in continuous/One shot mode.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ * @param[in] interval period in ticks
+ *
+ * @notapi
+ */
+void gpt_lld_start_timer(GPTDriver *gptp, gptcnt_t interval) {
+
+ gptp->tmr->INTVAL = (1<<31)|((interval*gptp->pr) - 1);
+
+ if (gptp->state == GPT_ONESHOT)
+ gptp->tmr->CTRL = (1<<1)|1;
+ else
+ gptp->tmr->CTRL = 1;
+}
+
+/**
+ * @brief Stops the timer.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ *
+ * @notapi
+ */
+void gpt_lld_stop_timer(GPTDriver *gptp) {
+
+ gptp->tmr->INTVAL = (1<<31);
+ gptp->tmr->CTRL = 0;
+ gptp->tmr->STAT |= 1;
+}
+
+/**
+ * @brief Starts the timer in one shot mode and waits for completion.
+ * @details This function specifically polls the timer waiting for completion
+ * in order to not have extra delays caused by interrupt servicing,
+ * this function is only recommended for short delays.
+ *
+ * @param[in] gptp pointer to the @p GPTDriver object
+ * @param[in] interval time interval in ticks
+ *
+ * @notapi
+ */
+void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval) {
+
+ gptp->tmr->INTVAL = (1<<31)|((interval*gptp->pr) - 1);
+ gptp->tmr->CTRL = (1<<1);
+
+ while (gptp->tmr->STAT & (1<<1))
+ ;
+
+ gptp->tmr->CTRL = 0;
+ gptp->tmr->STAT |= 1;
+}
+
+#endif /* HAL_USE_GPT */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/gpt_lld.h b/os/hal/platforms/LPC8xx/gpt_lld.h new file mode 100644 index 000000000..73f080f66 --- /dev/null +++ b/os/hal/platforms/LPC8xx/gpt_lld.h @@ -0,0 +1,208 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/gpt_lld.h
+ * @brief LPC8xx GPT subsystem low level driver header.
+ *
+ * @addtogroup GPT
+ * @{
+ */
+
+#ifndef _GPT_LLD_H_
+#define _GPT_LLD_H_
+
+#if HAL_USE_GPT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief GPT1 driver enable switch.
+ * @details If set to @p TRUE the support for GPT1 is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(LPC8xx_GPT_USE_MRT0) || defined(__DOXYGEN__)
+#define LPC8xx_GPT_USE_MRT0 TRUE
+#endif
+
+/**
+ * @brief GPT2 driver enable switch.
+ * @details If set to @p TRUE the support for GPT2 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(LPC8xx_GPT_USE_MRT1) || defined(__DOXYGEN__)
+#define LPC8xx_GPT_USE_MRT1 FALSE
+#endif
+
+/**
+ * @brief GPT3 driver enable switch.
+ * @details If set to @p TRUE the support for GPT3 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(LPC8xx_GPT_USE_MRT2) || defined(__DOXYGEN__)
+#define LPC8xx_GPT_USE_MRT2 FALSE
+#endif
+
+/**
+ * @brief GPT4 driver enable switch.
+ * @details If set to @p TRUE the support for GPT4 is included.
+ * @note The default is @p FALSE.
+ */
+#if !defined(LPC8xx_GPT_USE_MRT3) || defined(__DOXYGEN__)
+#define LPC8xx_GPT_USE_MRT3 FALSE
+#endif
+
+/**
+ * @brief GPT interrupt priority level setting.
+ */
+#if !defined(LPC8xx_GPT_MRT_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_GPT_MRT_IRQ_PRIORITY 2
+#endif
+
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if !LPC8xx_GPT_USE_MRT0 && !LPC8xx_GPT_USE_MRT1 && \
+ !LPC8xx_GPT_USE_MRT2 && !LPC8xx_GPT_USE_MRT3
+#error "GPT driver activated but no CT peripheral assigned"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief GPT frequency type.
+ */
+typedef uint32_t gptfreq_t;
+
+/**
+ * @brief GPT counter type.
+ */
+typedef uint32_t gptcnt_t;
+
+/**
+ * @brief Driver configuration structure.
+ * @note It could be empty on some architectures.
+ */
+typedef struct {
+ /**
+ * @brief Timer clock in Hz.
+ * @note The low level can use assertions in order to catch invalid
+ * frequency specifications.
+ */
+ gptfreq_t frequency;
+ /**
+ * @brief Timer callback pointer.
+ * @note This callback is invoked on GPT counter events.
+ */
+ gptcallback_t callback;
+ /* End of the mandatory fields.*/
+} GPTConfig;
+
+/**
+ * @brief Structure representing a GPT driver.
+ */
+struct GPTDriver {
+ /**
+ * @brief Driver state.
+ */
+ gptstate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const GPTConfig *config;
+ /* End of the mandatory fields.*/
+ /**
+ * @brief Pointer to the MRT Channelx registers block.
+ */
+ MRT_Channel_cfg_Type *tmr;
+ /**
+ * @brief Prescaler.
+ */
+ uint32_t pr;
+ /**
+ * @brief channel bitmask.
+ */
+ uint32_t mask;
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/**
+ * @brief Changes the interval of GPT peripheral.
+ * @details This function changes the interval of a running GPT unit.
+ * @pre The GPT unit must have been activated using @p gptStart().
+ * @pre The GPT unit must have been running in continuous mode using
+ * @p gptStartContinuous().
+ * @post The GPT unit interval is changed to the new value.
+ * @note The function has effect at the next cycle start.
+ *
+ * @param[in] gptp pointer to a @p GPTDriver object
+ * @param[in] interval new cycle time in timer ticks
+ * @notapi
+ */
+#define gpt_lld_change_interval(gptp, interval) \
+ ((gptp)->tmr->INTVAL = ((interval*(gptp)->pr) - 1))
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if LPC8xx_GPT_USE_MRT0 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD1;
+#endif
+
+#if LPC8xx_GPT_USE_MRT1 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD2;
+#endif
+
+#if LPC8xx_GPT_USE_MRT2 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD3;
+#endif
+
+#if LPC8xx_GPT_USE_MRT3 && !defined(__DOXYGEN__)
+extern GPTDriver GPTD4;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void gpt_lld_init(void);
+ void gpt_lld_start(GPTDriver *gptp);
+ void gpt_lld_stop(GPTDriver *gptp);
+ void gpt_lld_start_timer(GPTDriver *gptp, gptcnt_t period);
+ void gpt_lld_stop_timer(GPTDriver *gptp);
+ void gpt_lld_polled_delay(GPTDriver *gptp, gptcnt_t interval);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_GPT */
+
+#endif /* _GPT_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/hal_lld.c b/os/hal/platforms/LPC8xx/hal_lld.c new file mode 100644 index 000000000..e5170fcc4 --- /dev/null +++ b/os/hal/platforms/LPC8xx/hal_lld.c @@ -0,0 +1,140 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/hal_lld.c
+ * @brief LPC8xx HAL subsystem low level driver source.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level HAL driver initialization.
+ *
+ * @notapi
+ */
+void hal_lld_init(void) {
+
+ /* SysTick initialization using the system clock.*/
+ nvicSetSystemHandlerPriority(HANDLER_SYSTICK, CORTEX_PRIORITY_SYSTICK);
+ SysTick->LOAD = LPC8xx_SYSCLK / CH_FREQUENCY - 1;
+ SysTick->VAL = 0;
+ SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk |
+ SysTick_CTRL_ENABLE_Msk |
+ SysTick_CTRL_TICKINT_Msk;
+}
+
+/**
+ * @brief LPC8xx clocks and PLL initialization.
+ * @note This function must be invoked only after the system reset.
+ *
+ * @special
+ */
+void lpc8xx_clock_init(void) {
+ int i;
+
+ /* Enable clocks to IOCON & SWM. */
+ LPC_SYSCON->SYSAHBCLKCTRL |= ((1<<18)|(1<<7));
+
+ /* System oscillator initialization.*/
+#if (LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_SYSOSC)
+ // switch off pull-ups
+ LPC_IOCON->PIO0_8 &= ~(3<<3);
+ LPC_IOCON->PIO0_9 &= ~(3<<3);
+
+ // enable xtalin/xtalout
+ LPC_SWM->PINENABLE0 &= ~(3<<4);
+
+ LPC_SYSCON->SYSOSCCTRL = LPC8xx_SYSOSCCTRL;
+ LPC_SYSCON->PDRUNCFG &= ~(1<<5); /* System oscillator ON. */
+ for (i = 0; i<200; i++)
+ __NOP(); /* Stabilization delay. */
+#endif
+
+ /* CLKIN initialization.*/
+#if (LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_CLKIN)
+ // switch off pull-up
+ LPC_IOCON->PIO0_1 &= ~(3<<3);
+
+ // enable clkin
+ LPC_SWM->PINENABLE0 &= ~(1<<7);
+#endif
+
+ /* Always set PLL clock source -
+ PLL IN can be a main clock source */
+ LPC_SYSCON->SYSPLLCLKSEL = LPC8xx_PLLCLK_SOURCE;
+ LPC_SYSCON->SYSPLLCLKUEN = 1;
+ while (!(LPC_SYSCON->SYSPLLCLKUEN & 0x01)); /* Wait Until Updated */
+
+ /* PLL initialization.*/
+#if LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_PLLOUT
+ LPC_SYSCON->SYSPLLCTRL = LPC8xx_SYSPLLCTRL_MSEL | LPC8xx_SYSPLLCTRL_PSEL;
+ LPC_SYSCON->PDRUNCFG &= ~(1<<7); /* System PLL ON. */
+ while (!(LPC_SYSCON->SYSPLLSTAT & 1)) /* Wait PLL lock. */
+ ;
+#endif
+
+#if LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_WDGOSC
+#error "WatchDog Oscillator not configured! Dont use as main clock source"
+ LPC_SYSCON->WDTOSCCTRL = ??;
+ LPC_SYSCON->PDRUNCFG &= ~(1<<6); /* WDT OSC On */
+ for (i = 0; i<200; i++)
+ __NOP(); /* Stabilization delay. */
+#endif
+
+ /* Flash wait states setting, the code takes care to not touch TBD bits.*/
+ LPC_FLASHCTRL->FLASHCFG = (LPC_FLASHCTRL->FLASHCFG & ~1) |
+ LPC8xx_FLASHCFG_FLASHTIM;
+
+ /* ABH divider initialization. Set this **before** switching Main clock
+ source to ensure AHB clock stays in spec */
+ LPC_SYSCON->SYSAHBCLKDIV = LPC8xx_SYSABHCLK_DIV;
+
+ /* Main clock source selection.*/
+ LPC_SYSCON->MAINCLKSEL = LPC8xx_MAINCLK_SOURCE;
+ LPC_SYSCON->MAINCLKUEN = 1;
+ while (!(LPC_SYSCON->MAINCLKUEN & 1)); /* Wait switch completion. */
+
+ /* Disable clocks to IOCON, SWM, FLASHREG & ROM. */
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~((1<<18)|(1<<7)|(1<<3)|(1<<1));
+
+}
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/hal_lld.h b/os/hal/platforms/LPC8xx/hal_lld.h new file mode 100644 index 000000000..4f9c06dd2 --- /dev/null +++ b/os/hal/platforms/LPC8xx/hal_lld.h @@ -0,0 +1,221 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/hal_lld.h
+ * @brief HAL subsystem low level driver header template.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#ifndef _HAL_LLD_H_
+#define _HAL_LLD_H_
+
+#include "LPC8xx.h"
+#include "nvic.h"
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @brief Defines the support for realtime counters in the HAL.
+ */
+#define HAL_IMPLEMENTS_COUNTERS FALSE
+
+/**
+ * @brief Platform name.
+ */
+#define PLATFORM_NAME "LPC8xx"
+
+#define IRCOSCCLK 12000000 /**< High speed internal clock. */
+#define WDGOSCCLK ??????? /**< Watchdog internal clock. */
+
+#define SYSPLLCLKSEL_IRCOSC 0 /**< Internal RC oscillator
+ clock source. */
+#define SYSPLLCLKSEL_SYSOSC 1 /**< System oscillator clock
+ source. */
+#define SYSPLLCLKSEL_CLKIN 3 /**< External CLKIN clock
+ source. */
+
+#define SYSMAINCLKSEL_IRCOSC 0 /**< Clock source is IRC. */
+#define SYSMAINCLKSEL_PLLIN 1 /**< Clock source is PLLIN. */
+#define SYSMAINCLKSEL_WDGOSC 2 /**< Clock source is WDGOSC. */
+#define SYSMAINCLKSEL_PLLOUT 3 /**< Clock source is PLLOUT. */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief System PLL clock source.
+ */
+#if !defined(LPC8xx_PLLCLK_SOURCE) || defined(__DOXYGEN__)
+#define LPC8xx_PLLCLK_SOURCE SYSPLLCLKSEL_IRCOSC
+#endif
+
+/**
+ * @brief System PLL multiplier.
+ * @note The value must be in the 1..32 range and the final frequency
+ * must not exceed the CCO ratings.
+ */
+#if !defined(LPC8xx_SYSPLL_MUL) || defined(__DOXYGEN__)
+#define LPC8xx_SYSPLL_MUL 4
+#endif
+
+/**
+ * @brief System PLL divider.
+ * @note The value must be chosen between (2, 4, 8, 16).
+ */
+#if !defined(LPC8xx_SYSPLL_DIV) || defined(__DOXYGEN__)
+#define LPC8xx_SYSPLL_DIV 4
+#endif
+
+/**
+ * @brief System main clock source.
+ */
+#if !defined(LPC8xx_MAINCLK_SOURCE) || defined(__DOXYGEN__)
+#define LPC8xx_MAINCLK_SOURCE SYSMAINCLKSEL_PLLOUT
+#endif
+
+/**
+ * @brief AHB clock divider.
+ * @note The value must be chosen between (1...255).
+ */
+#if !defined(LPC8xx_SYSABHCLK_DIV) || defined(__DOXYGEN__)
+#define LPC8xx_SYSABHCLK_DIV 1
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/**
+ * @brief Calculated SYSOSCCTRL setting.
+ */
+#if (SYSOSCCLK < 18000000) || defined(__DOXYGEN__)
+#define LPC8xx_SYSOSCCTRL 0
+#else
+#define LPC8xx_SYSOSCCTRL 2
+#endif
+
+/**
+ * @brief PLL input clock frequency.
+ */
+#if (LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_SYSOSC) || defined(__DOXYGEN__)
+#define LPC8xx_SYSPLLCLKIN SYSOSCCLK
+#elif LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_IRCOSC
+#define LPC8xx_SYSPLLCLKIN IRCOSCCLK
+#elif LPC8xx_PLLCLK_SOURCE == SYSPLLCLKSEL_CLKIN
+#define LPC8xx_SYSPLLCLKIN CLKINCLK
+#else
+#error "invalid LPC8xx_PLLCLK_SOURCE clock source specified"
+#endif
+
+/**
+ * @brief MSEL mask in SYSPLLCTRL register.
+ */
+#if (LPC8xx_SYSPLL_MUL >= 1) && (LPC8xx_SYSPLL_MUL <= 32) || \
+ defined(__DOXYGEN__)
+#define LPC8xx_SYSPLLCTRL_MSEL (LPC8xx_SYSPLL_MUL - 1)
+#else
+#error "LPC8xx_SYSPLL_MUL out of range (1...32)"
+#endif
+
+/**
+ * @brief PSEL mask in SYSPLLCTRL register.
+ */
+#if (LPC8xx_SYSPLL_DIV == 2) || defined(__DOXYGEN__)
+#define LPC8xx_SYSPLLCTRL_PSEL (0 << 5)
+#elif LPC8xx_SYSPLL_DIV == 4
+#define LPC8xx_SYSPLLCTRL_PSEL (1 << 5)
+#elif LPC8xx_SYSPLL_DIV == 8
+#define LPC8xx_SYSPLLCTRL_PSEL (2 << 5)
+#elif LPC8xx_SYSPLL_DIV == 16
+#define LPC8xx_SYSPLLCTRL_PSEL (3 << 5)
+#else
+#error "invalid LPC8xx_SYSPLL_DIV value (2,4,8,16)"
+#endif
+
+/**
+ * @brief CCO frequency.
+ */
+#define LPC8xx_SYSPLLCCO (LPC8xx_SYSPLLCLKIN * LPC8xx_SYSPLL_MUL * \
+ LPC8xx_SYSPLL_DIV)
+
+#if (LPC8xx_SYSPLLCCO < 156000000) || (LPC8xx_SYSPLLCCO > 320000000)
+#error "CCO frequency out of the acceptable range (156...320MHz)"
+#endif
+
+/**
+ * @brief PLL output clock frequency.
+ */
+#define LPC8xx_SYSPLLCLKOUT (LPC8xx_SYSPLLCCO / LPC8xx_SYSPLL_DIV)
+
+#if (LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_IRCOSC) || defined(__DOXYGEN__)
+#define LPC8xx_MAINCLK IRCOSCCLK
+#elif LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_PLLIN
+#define LPC8xx_MAINCLK LPC8xx_SYSPLLCLKIN
+#elif LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_WDGOSC
+#define LPC8xx_MAINCLK WDGOSCCLK
+#elif LPC8xx_MAINCLK_SOURCE == SYSMAINCLKSEL_PLLOUT
+#define LPC8xx_MAINCLK LPC8xx_SYSPLLCLKOUT
+#else
+#error "invalid LPC8xx_MAINCLK_SOURCE clock source specified"
+#endif
+
+/**
+ * @brief AHB clock.
+ */
+#define LPC8xx_SYSCLK (LPC8xx_MAINCLK / LPC8xx_SYSABHCLK_DIV)
+#if LPC8xx_SYSCLK > 30000000
+#error "AHB clock frequency out of the acceptable range (30MHz max)"
+#endif
+
+/**
+ * @brief Flash wait states.
+ */
+#if (LPC8xx_SYSCLK <= 20000000) || defined(__DOXYGEN__)
+#define LPC8xx_FLASHCFG_FLASHTIM 0
+#else
+#define LPC8xx_FLASHCFG_FLASHTIM 1
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void hal_lld_init(void);
+ void lpc8xx_clock_init(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _HAL_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/pal_lld.c b/os/hal/platforms/LPC8xx/pal_lld.c new file mode 100644 index 000000000..7f290db8f --- /dev/null +++ b/os/hal/platforms/LPC8xx/pal_lld.c @@ -0,0 +1,105 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/pal_lld.c
+ * @brief LPC8xx GPIO low level driver code.
+ *
+ * @addtogroup PAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+/**
+ * @brief LPC8xx I/O ports configuration.
+ * @details GPIO unit registers initialization.
+ *
+ * @param[in] config the LPC8xx ports configuration
+ *
+ * @notapi
+ */
+void _pal_lld_init(const PALConfig *config) {
+
+ /* Enable clocks to GPIO */
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<6);
+
+ LPC_GPIO_PORT->DIR0 = config->dir;
+ LPC_GPIO_PORT->PIN0 = config->data;
+}
+
+/**
+ * @brief Pads mode setup.
+ * @details This function programs a pads group belonging to the same port
+ * with the specified mode.
+ * @note @p PAL_MODE_UNCONNECTED is implemented as push pull output with
+ * high state.
+ * @note This function does not alter the @p PINSELx registers. Alternate
+ * functions setup must be handled by device-specific code.
+ *
+ * @param[in] port the port identifier
+ * @param[in] mask the group mask
+ * @param[in] mode the mode
+ *
+ * @notapi
+ */
+void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ iomode_t mode) {
+
+ switch (mode)
+ {
+ case PAL_MODE_RESET:
+ case PAL_MODE_INPUT:
+ port->DIR0 &= ~mask;
+ break;
+
+ case PAL_MODE_UNCONNECTED:
+ palSetPort(port, PAL_WHOLE_PORT);
+ //no break
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ port->DIR0 |= mask;
+ break;
+ }
+
+ return;
+}
+
+#endif /* HAL_USE_PAL */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/pal_lld.h b/os/hal/platforms/LPC8xx/pal_lld.h new file mode 100644 index 000000000..f90932fa2 --- /dev/null +++ b/os/hal/platforms/LPC8xx/pal_lld.h @@ -0,0 +1,290 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/pal_lld.h
+ * @brief LPC8xx GPIO low level driver header.
+ *
+ * @addtogroup PAL
+ * @{
+ */
+
+#ifndef _PAL_LLD_H_
+#define _PAL_LLD_H_
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Unsupported modes and specific modes */
+/*===========================================================================*/
+
+#undef PAL_MODE_INPUT_PULLUP
+#undef PAL_MODE_INPUT_PULLDOWN
+#undef PAL_MODE_INPUT_ANALOG
+#undef PAL_MODE_OUTPUT_OPENDRAIN
+
+/*===========================================================================*/
+/* I/O Ports Types and constants. */
+/*===========================================================================*/
+
+/**
+ * @brief GPIO port setup info.
+ */
+
+/**
+ * @brief GPIO static initializer.
+ * @details An instance of this structure must be passed to @p palInit() at
+ * system startup time in order to initialized the digital I/O
+ * subsystem. This represents only the initial setup, specific pads
+ * or whole ports can be reprogrammed at later time.
+ * @note The @p IOCON block is not configured, initially all pins have
+ * enabled pullups and are programmed as GPIO. It is responsibility
+ * of the various drivers to reprogram the pins in the proper mode.
+ * Pins that are not handled by any driver may be programmed in
+ * @p board.c.
+ */
+typedef struct {
+ /** Initial value for FIO_PIN register.*/
+ uint32_t data;
+ /** Initial value for FIO_DIR register.*/
+ uint32_t dir;
+} PALConfig;
+
+/**
+ * @brief Width, in bits, of the I/O port.
+ */
+#define PAL_IOPORTS_WIDTH 32
+
+/**
+ * @brief Whole port mask.
+ * @brief This macro specifies all the valid bits into a port.
+ */
+#define PAL_WHOLE_PORT ((ioportmask_t)0x3FFFF)
+
+/**
+ * @brief Digital I/O port sized unsigned type.
+ */
+typedef uint32_t ioportmask_t;
+
+/**
+ * @brief Digital I/O modes.
+ */
+typedef uint32_t iomode_t;
+
+/**
+ * @brief Port Identifier.
+ */
+typedef LPC_GPIO_PORT_TypeDef *ioportid_t;
+
+/*===========================================================================*/
+/* I/O Ports Identifiers. */
+/*===========================================================================*/
+
+/**
+ * @brief GPIO0 port identifier.
+ */
+#define IOPORT1 LPC_GPIO_PORT
+#define GPIO0 LPC_GPIO_PORT
+
+
+/*===========================================================================*/
+/* Implementation, some of the following macros could be implemented as */
+/* functions, if so please put them in pal_lld.c. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level PAL subsystem initialization.
+ *
+ * @param[in] config architecture-dependent ports configuration
+ *
+ * @notapi
+ */
+#define pal_lld_init(config) _pal_lld_init(config)
+
+/**
+ * @brief Reads the physical I/O port states.
+ *
+ * @param[in] port port identifier
+ * @return The port bits.
+ *
+ * @notapi
+ */
+#define pal_lld_readport(port) ((port)->PIN0)
+
+/**
+ * @brief Reads the output latch.
+ * @details The purpose of this function is to read back the latched output
+ * value.
+ *
+ * @param[in] port port identifier
+ * @return The latched logical states.
+ *
+ * @notapi
+ */
+#define pal_lld_readlatch(port) ((port)->SET0)
+
+/**
+ * @brief Writes a bits mask on a I/O port.
+ *
+ * @param[in] port port identifier
+ * @param[in] bits bits to be written on the specified port
+ *
+ * @notapi
+ */
+#define pal_lld_writeport(port, bits) ((port)->PIN0 = (bits))
+
+/**
+ * @brief Sets a bits mask on a I/O port.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+ *
+ * @param[in] port port identifier
+ * @param[in] bits bits to be ORed on the specified port
+ *
+ * @notapi
+ */
+#define pal_lld_setport(port, bits) ((port)->SET0 = (bits))
+
+/**
+ * @brief Clears a bits mask on a I/O port.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+ *
+ * @param[in] port port identifier
+ * @param[in] bits bits to be cleared on the specified port
+ *
+ * @notapi
+ */
+#define pal_lld_clearport(port, bits) ((port)->CLR0 = (bits))
+
+
+/**
+ * @brief Toggles a bits mask on a I/O port.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+
+ *
+ * @param[in] port port identifier
+ * @param[in] bits bits to be XORed on the specified port
+ *
+ * @api
+ */
+#define pal_lld_toggleport(port, bits) ((port)->NOT0 = (bits))
+
+
+/**
+ * @brief Writes a group of bits.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+ *
+ * @param[in] port port identifier
+ * @param[in] mask group mask
+ * @param[in] offset group bit offset within the port
+ * @param[in] bits bits to be written. Values exceeding the group width
+ * are masked.
+ *
+ * @notapi
+ */
+#define pal_lld_writegroup(port, mask, offset, bits) \
+ (port)->MASK0 = (~(mask) << (offset)); \
+ (port)->MPIN0 = ((bits) << (offset))
+
+/**
+ * @brief Pads group mode setup.
+ * @details This function programs a pads group belonging to the same port
+ * with the specified mode.
+ * @note Programming an unknown or unsupported mode is silently ignored.
+ *
+ * @param[in] port port identifier
+ * @param[in] mask group mask
+ * @param[in] offset group bit offset within the port
+ * @param[in] mode group mode
+ *
+ * @notapi
+ */
+#define pal_lld_setgroupmode(port, mask, offset, mode) \
+ _pal_lld_setgroupmode(port, mask << offset, mode)
+
+/**
+ * @brief Writes a logical state on an output pad.
+ * @note This function is not meant to be invoked directly by the
+ * application code.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+ *
+ * @param[in] port port identifier
+ * @param[in] pad pad number within the port
+ * @param[in] bit logical value, the value must be @p PAL_LOW or
+ * @p PAL_HIGH
+ *
+ * @notapi
+ */
+#define pal_lld_writepad(port, pad, bit) \
+ ((port)->W0[(pad)] = (bit))
+
+/**
+ * @brief Sets a pad logical state to @p PAL_HIGH.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+ *
+ * @param[in] port port identifier
+ * @param[in] pad pad number within the port
+ *
+ * @notapi
+ */
+#define pal_lld_setpad(port, pad) \
+ ((port)->W0[(pad)] = 1)
+
+/**
+ * @brief Clears a pad logical state to @p PAL_LOW.
+ * @note The @ref PAL provides a default software implementation of this
+ * functionality, implement this function if can optimize it by using
+ * special hardware functionalities or special coding.
+ *
+ * @param[in] port port identifier
+ * @param[in] pad pad number within the port
+ *
+ * @notapi
+ */
+#define pal_lld_clearpad(port, pad) \
+ ((port)->W0[(pad)] = 0)
+
+#if !defined(__DOXYGEN__)
+extern const PALConfig pal_default_config;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void _pal_lld_init(const PALConfig *config);
+ void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ iomode_t mode);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_PAL */
+
+#endif /* _PAL_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/platform.dox b/os/hal/platforms/LPC8xx/platform.dox new file mode 100644 index 000000000..85b60bcad --- /dev/null +++ b/os/hal/platforms/LPC8xx/platform.dox @@ -0,0 +1,104 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @defgroup LPC8xx LPC8xx Drivers
+ * @details This section describes all the supported drivers on the LPC8xx
+ * platform and the implementation details of the single drivers.
+ *
+ * @ingroup platforms
+ */
+
+/**
+ * @defgroup LPC8xx_HAL LPC8xx Initialization Support
+ * @details The LPC8xx HAL support is responsible for system initialization.
+ *
+ * @section lpc8xx_hal_1 Supported HW resources
+ * - SYSCON.
+ * - Flash.
+ * .
+ * @section lpc8xx_hal_2 LPC8xx HAL driver implementation features
+ * - Clock tree initialization.
+ * - Clock source selection.
+ * - Flash controller initialization.
+ * - SYSTICK initialization based on current clock and kernel required rate.
+ * .
+ * @ingroup LPC8xx
+ */
+
+/**
+ * @defgroup LPC8xx_GPT LPC8xx GPT Support
+ * @details The LPC8xx GPT driver uses the MRT peripheral.
+ *
+ * @section lpc8xx_gpt_1 Supported HW resources
+ * - MRT.
+ * .
+ * @section lpc8xx_gpt_2 LPC8xx GPT driver implementation features
+ * - Each timer can be independently enabled and programmed.
+ * - Programmable MRT interrupt priority level.
+ * .
+ * @ingroup LPC8xx
+ */
+
+/**
+ * @defgroup LPC8xx_PAL LPC8xx PAL Support
+ * @details The LPC8xx PAL driver uses the GPIO peripheral.
+ *
+ * @section lpc8xx_pal_1 Supported HW resources
+ * - GPIO_PORT.
+ * .
+ * @section lpc8xx_pal_2 LPC8xx PAL driver implementation features
+ * - 18 bits wide ports.
+ * - Atomic set/reset functions.
+ * - Atomic Toggle functions.
+ * - Atomic set+reset function (atomic bus operations).
+ * - Output latched regardless of the pad setting.
+ * - Direct read of input pads regardless of the pad setting.
+ * .
+ * @section lpc8xx_pal_3 Supported PAL setup modes
+ * - @p PAL_MODE_RESET.
+ * - @p PAL_MODE_UNCONNECTED.
+ * - @p PAL_MODE_INPUT.
+ * - @p PAL_MODE_OUTPUT_PUSHPULL.
+ * .
+ * Any attempt to setup an invalid mode is ignored.
+ *
+ * @section lpc8xx_pal_4 Suboptimal behavior
+ * Some GPIO features are less than optimal:
+ * - Group operations are not atomic.
+ * - Pull-up and Pull-down resistors cannot be programmed through the PAL
+ * driver and must be programmed separately using the IOCON peripheral.
+ * .
+ * @ingroup LPC8xx
+ */
+
+/**
+ * @defgroup LPC8xx_SERIAL LPC8xx Serial Support
+ * @details The LPC8xx Serial driver uses the UART peripheral in a
+ * buffered, interrupt driven, implementation.
+ *
+ * @section lpc8xx_serial_1 Supported HW resources
+ * The serial driver can support any of the following hardware resources:
+ * - UART.
+ * .
+ * @section lpc8xx_serial_2 LPC8xx Serial driver implementation features
+ * - Clock stop for reduced power usage when the driver is in stop state.
+ * - Fully interrupt driven.
+ * - Programmable priority level.
+ * .
+ * @ingroup LPC8xx
+ */
+
diff --git a/os/hal/platforms/LPC8xx/platform.mk b/os/hal/platforms/LPC8xx/platform.mk new file mode 100644 index 000000000..31f20d16c --- /dev/null +++ b/os/hal/platforms/LPC8xx/platform.mk @@ -0,0 +1,11 @@ +# List of all the LPC8xx platform files.
+PLATFORMSRC = ${CHIBIOS}/os/hal/platforms/LPC8xx/hal_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC8xx/gpt_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC8xx/pal_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC8xx/serial_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC8xx/spi_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC8xx/ext_lld.c \
+ ${CHIBIOS}/os/hal/platforms/LPC8xx/ext_lld_isr.c
+
+# Required include directories
+PLATFORMINC = ${CHIBIOS}/os/hal/platforms/LPC8xx
diff --git a/os/hal/platforms/LPC8xx/serial_lld.c b/os/hal/platforms/LPC8xx/serial_lld.c new file mode 100644 index 000000000..e9b53dc72 --- /dev/null +++ b/os/hal/platforms/LPC8xx/serial_lld.c @@ -0,0 +1,352 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/serial_lld.c
+ * @brief LPC8xx low level serial driver code.
+ *
+ * @addtogroup SERIAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_SERIAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+#if LPC8xx_SERIAL_USE_UART0 || defined(__DOXYGEN__)
+/** @brief UART0 serial driver identifier.*/
+SerialDriver SD1;
+#endif
+
+#if LPC8xx_SERIAL_USE_UART1 || defined(__DOXYGEN__)
+/** @brief UART1 serial driver identifier.*/
+SerialDriver SD2;
+#endif
+
+#if LPC8xx_SERIAL_USE_UART2 || defined(__DOXYGEN__)
+/** @brief UART2 serial driver identifier.*/
+SerialDriver SD3;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/** @brief Driver default configuration.*/
+static const SerialConfig default_config = {
+ SERIAL_DEFAULT_BITRATE,
+ (CFG_DL8 | CFG_NOPARITY | CFG_STOP1)
+};
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Error handling routine.
+ *
+ * @param[in] sdp communication channel associated to the UART
+ * @param[in] err UART STAT register value
+ */
+static void set_error(SerialDriver *sdp, IOREG32 err) {
+ flagsmask_t sts = 0;
+
+ if (err & STAT_OVERRUN)
+ sts |= SD_OVERRUN_ERROR;
+ if (err & STAT_PARITYERR)
+ sts |= SD_PARITY_ERROR;
+ if (err & STAT_FRAMERR)
+ sts |= SD_FRAMING_ERROR;
+ if (err & STAT_RXBRK)
+ sts |= SD_BREAK_DETECTED;
+
+ chSysLockFromIsr();
+ chnAddFlagsI(sdp, sts);
+ chSysUnlockFromIsr();
+}
+
+/**
+ * @brief Common IRQ handler.
+ * @note Tries hard to clear all the pending interrupt sources, we don't
+ * want to go through the whole ISR and have another interrupt soon
+ * after.
+ *
+ * @param[in] u pointer to an UART I/O block
+ * @param[in] sdp communication channel associated to the UART
+ */
+static void serve_interrupt(SerialDriver *sdp) {
+ LPC_USART_TypeDef *u = sdp->uart;
+
+ while (u->INTSTAT) {
+
+ if (u->INTSTAT & STAT_RXRDY) {
+ chSysLockFromIsr();
+ if (chIQIsEmptyI(&sdp->iqueue))
+ chnAddFlagsI(sdp, CHN_INPUT_AVAILABLE);
+ if (chIQPutI(&sdp->iqueue, u->RXDATA) < Q_OK)
+ chnAddFlagsI(sdp, SD_OVERRUN_ERROR);
+ chSysUnlockFromIsr();
+ }
+
+ if (u->INTSTAT & STAT_TXRDY) {
+ msg_t b;
+
+ chSysLockFromIsr();
+ b = chOQGetI(&sdp->oqueue);
+ chSysUnlockFromIsr();
+
+ if (b < Q_OK) {
+ u->INTENCLR = STAT_TXRDY;
+ chSysLockFromIsr();
+ chnAddFlagsI(sdp, CHN_OUTPUT_EMPTY);
+ chSysUnlockFromIsr();
+ break;
+ }
+ else {
+ u->TXDATA = b;
+ }
+ }
+
+ if (u->INTSTAT & (STAT_OVERRUN | STAT_DELTARXBRK |
+ STAT_FRAMERR | STAT_PARITYERR) ) {
+ IOREG32 stat = u->STAT;
+ set_error(sdp, stat);
+ u->STAT = stat;
+ }
+
+ }
+}
+
+/**
+ * @brief Attempts a TX preload.
+ */
+static void preload(SerialDriver *sdp) {
+ LPC_USART_TypeDef *u = sdp->uart;
+
+ if (u->STAT & STAT_TXIDLE) {
+ msg_t b = chOQGetI(&sdp->oqueue);
+ if (b < Q_OK) {
+ chnAddFlagsI(sdp, CHN_OUTPUT_EMPTY);
+ return;
+ }
+ u->TXDATA = b;
+ }
+ u->INTENSET = STAT_TXRDY;
+}
+
+/**
+ * @brief Driver output notification.
+ */
+#if LPC8xx_SERIAL_USE_UART0 || defined(__DOXYGEN__)
+static void notify1(GenericQueue *qp) {
+
+ (void)qp;
+ preload(&SD1);
+}
+#endif
+
+#if LPC8xx_SERIAL_USE_UART1 || defined(__DOXYGEN__)
+static void notify2(GenericQueue *qp) {
+
+ (void)qp;
+ preload(&SD2);
+}
+#endif
+
+#if LPC8xx_SERIAL_USE_UART2 || defined(__DOXYGEN__)
+static void notify3(GenericQueue *qp) {
+
+ (void)qp;
+ preload(&SD3);
+}
+#endif
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/**
+ * @brief UARTn IRQ handlers.
+ *
+ * @isr
+ */
+#if LPC8xx_SERIAL_USE_UART0 || defined(__DOXYGEN__)
+CH_IRQ_HANDLER(Vector4C) {
+
+ CH_IRQ_PROLOGUE();
+ serve_interrupt( &SD1 );
+ CH_IRQ_EPILOGUE();
+}
+#endif
+#if LPC8xx_SERIAL_USE_UART1 || defined(__DOXYGEN__)
+CH_IRQ_HANDLER(Vector50) {
+
+ CH_IRQ_PROLOGUE();
+ serve_interrupt( &SD2 );
+ CH_IRQ_EPILOGUE();
+}
+#endif
+#if LPC8xx_SERIAL_USE_UART2 || defined(__DOXYGEN__)
+CH_IRQ_HANDLER(Vector54) {
+
+ CH_IRQ_PROLOGUE();
+ serve_interrupt( &SD3 );
+ CH_IRQ_EPILOGUE();
+}
+#endif
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level serial driver initialization.
+ *
+ * @notapi
+ */
+void sd_lld_init(void) {
+
+#if LPC8xx_SERIAL_USE_UART0
+ sdObjectInit(&SD1, NULL, notify1);
+ SD1.uart = LPC_USART0;
+#endif
+
+#if LPC8xx_SERIAL_USE_UART1
+ sdObjectInit(&SD2, NULL, notify2);
+ SD2.uart = LPC_USART1;
+#endif
+
+#if LPC8xx_SERIAL_USE_UART2
+ sdObjectInit(&SD3, NULL, notify3);
+ SD3.uart = LPC_USART2;
+#endif
+
+ /* Reset fractional baudrate generator */
+ LPC_SYSCON->PRESETCTRL &= ~(1<<2);
+ LPC_SYSCON->PRESETCTRL |= (1<<2);
+
+ LPC_SYSCON->UARTCLKDIV = LPC8xx_SERIAL_UARTCLKDIV;
+ LPC_SYSCON->UARTFRGDIV = LPC8xx_SERIAL_UARTFRGDIV;
+ LPC_SYSCON->UARTFRGMULT = LPC8xx_SERIAL_UARTFRGMULT;
+
+}
+
+/**
+ * @brief Low level serial driver configuration and (re)start.
+ *
+ * @param[in] sdp pointer to a @p SerialDriver object
+ * @param[in] config the architecture-dependent serial driver configuration.
+ * If this parameter is set to @p NULL then a default
+ * configuration is used.
+ *
+ * @notapi
+ */
+void sd_lld_start( SerialDriver *sdp, const SerialConfig *config ) {
+
+ if (config == NULL)
+ config = &default_config;
+
+ if (sdp->state == SD_STOP) {
+
+#if LPC8xx_SERIAL_USE_UART0
+ if (&SD1 == sdp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<14); // Enable Clk
+ LPC_SYSCON->PRESETCTRL &= ~(1<<3); // Reset peripheral
+ LPC_SYSCON->PRESETCTRL |= (1<<3);
+ nvicEnableVector(UART0_IRQn,
+ CORTEX_PRIORITY_MASK(LPC8xx_SERIAL_UART0_IRQ_PRIORITY));
+ }
+#endif
+
+#if LPC8xx_SERIAL_USE_UART1
+ if (&SD2 == sdp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<15); // Enable Clk
+ LPC_SYSCON->PRESETCTRL &= ~(1<<4); // Reset peripheral
+ LPC_SYSCON->PRESETCTRL |= (1<<4);
+ nvicEnableVector(UART1_IRQn,
+ CORTEX_PRIORITY_MASK(LPC8xx_SERIAL_UART1_IRQ_PRIORITY));
+ }
+#endif
+
+#if LPC8xx_SERIAL_USE_UART2
+ if (&SD3 == sdp) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<16); // Enable Clk
+ LPC_SYSCON->PRESETCTRL &= ~(1<<5); // Reset peripheral
+ LPC_SYSCON->PRESETCTRL |= (1<<5);
+ nvicEnableVector(UART2_IRQn,
+ CORTEX_PRIORITY_MASK(LPC8xx_SERIAL_UART2_IRQ_PRIORITY));
+ }
+#endif
+
+ }
+
+ sdp->uart->BRG = (LPC8xx_SERIAL_U_PCLK / (config->sc_speed << 4)) -1;
+ sdp->uart->INTENSET = STAT_FRAMERR | STAT_OVERRUN |
+ STAT_PARITYERR | STAT_DELTARXBRK |
+ STAT_RXRDY;
+ sdp->uart->CFG = config->sc_cfg | CFG_ENA;
+}
+
+/**
+ * @brief Low level serial driver stop.
+ * @details De-initializes the UART, stops the associated clock, resets the
+ * interrupt vector.
+ *
+ * @param[in] sdp pointer to a @p SerialDriver object
+ *
+ * @notapi
+ */
+void sd_lld_stop( SerialDriver *sdp ) {
+
+ if (sdp->state == SD_READY) {
+ sdp->uart->INTENCLR = STAT_TXRDY | STAT_RXRDY;
+ sdp->uart->CFG = 0;
+
+#if LPC8xx_SERIAL_USE_UART0
+ if (&SD1 == sdp) {
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<12);
+ nvicDisableVector(UART0_IRQn);
+ return;
+ }
+#endif
+
+#if LPC8xx_SERIAL_USE_UART1
+ if (&SD2 == sdp) {
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<13);
+ nvicDisableVector(UART1_IRQn);
+ return;
+ }
+#endif
+
+#if LPC8xx_SERIAL_USE_UART2
+ if (&SD3 == sdp) {
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<14);
+ nvicDisableVector(UART2_IRQn);
+ return;
+ }
+#endif
+
+ }
+}
+
+#endif /* HAL_USE_SERIAL */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/serial_lld.h b/os/hal/platforms/LPC8xx/serial_lld.h new file mode 100644 index 000000000..915c4e27e --- /dev/null +++ b/os/hal/platforms/LPC8xx/serial_lld.h @@ -0,0 +1,269 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/serial_lld.h
+ * @brief LPC8xx low level serial driver header.
+ *
+ * @addtogroup SERIAL
+ * @{
+ */
+
+#ifndef _SERIAL_LLD_H_
+#define _SERIAL_LLD_H_
+
+#if HAL_USE_SERIAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+#define CFG_ENA 0x0001
+#define CFG_DL7 0x0000
+#define CFG_DL8 0x0004
+#define CFG_DL9 0x0008
+#define CFG_NOPARITY 0x0000
+#define CFG_PARITYEVEN 0x0020
+#define CFG_PARITYODD 0x0030
+#define CFG_STOP1 0x0000
+#define CFG_STOP2 0x0040
+#define CFG_CTSEN 0x0200
+#define CFG_SYNCEN 0x0800
+#define CFG_CLKPOL_FALL 0x0000
+#define CFG_CLKPOL_RISE 0x1000
+#define CFG_SYNC_SLV 0x0000
+#define CFG_SYNC_MAST 0x4000
+#define CFG_LOOP_EN 0x8000
+
+#define CTRL_TXBRKEN 0x0002
+#define CTRL_ADDRDET 0x0004
+#define CTRL_TXDIS 0x0040
+#define CTRL_CC 0x0100
+#define CTRL_CLRCC 0x0200
+
+#define STAT_RXRDY 0x0001
+#define STAT_RXIDLE 0x0002
+#define STAT_TXRDY 0x0004
+#define STAT_TXIDLE 0x0008
+#define STAT_CTS 0x0010
+#define STAT_DELTACTS 0x0020
+#define STAT_TXDIS 0x0040
+#define STAT_OVERRUN 0x0100
+#define STAT_RXBRK 0x0400
+#define STAT_DELTARXBRK 0x0800
+#define STAT_START 0x1000
+#define STAT_FRAMERR 0x2000
+#define STAT_PARITYERR 0x4000
+#define STAT_RXNOISE 0x8000
+
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief UART0 driver enable switch.
+ * @details If set to @p TRUE the support for UART0 is included.
+ * @note The default is @p TRUE .
+ */
+#if !defined(LPC8xx_SERIAL_USE_UART0) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_USE_UART0 TRUE
+#endif
+
+/**
+ * @brief UART1 driver enable switch.
+ * @details If set to @p TRUE the support for UART1 is included.
+ * @note The default is @p FALSE .
+ */
+#if !defined(LPC8xx_SERIAL_USE_UART1) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_USE_UART1 FALSE
+#endif
+
+/**
+ * @brief UART2 driver enable switch.
+ * @details If set to @p TRUE the support for UART2 is included.
+ * @note The default is @p FALSE .
+ */
+#if !defined(LPC8xx_SERIAL_USE_UART2) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_USE_UART2 FALSE
+#endif
+
+/**
+ * @brief UART0 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_SERIAL_UART0_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_UART0_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief UART1 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_SERIAL_UART1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_UART1_IRQ_PRIORITY 3
+#endif
+
+/**
+ * @brief UART2 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_SERIAL_UART2_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_UART2_IRQ_PRIORITY 3
+#endif
+
+
+/**
+ * @brief Uart Baud Clock (U_PCLK).
+ * @details The Baud clock rate we would like to achieve.
+ * @note The default is @p 11.0592MHz.
+ * A multiple of 1.8432MHz will give accurate
+ * results at all standard baud rates .
+ */
+#if !defined(LPC8xx_SERIAL_U_PCLK) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_U_PCLK 11059200
+#endif
+
+/**
+ * @brief UARTCLKDIV divider.
+ */
+#if !defined(LPC8xx_SERIAL_UARTCLKDIV) || defined(__DOXYGEN__)
+#define LPC8xx_SERIAL_UARTCLKDIV (LPC8xx_MAINCLK/LPC8xx_SERIAL_U_PCLK)
+#endif
+
+// Output from uart clock divider
+#define LPC8xx_UARTDIVCLK (LPC8xx_MAINCLK/LPC8xx_SERIAL_UARTCLKDIV)
+
+/**
+ * @brief UARTFRGDIV
+ * @details Fractional Baud rate generator denominator.
+ * @note If used, *must* be set to 256, otherwise set to 0
+ */
+#if !defined(LPC8xx_SERIAL_UARTFRGDIV) || defined(__DOXYGEN__)
+ #if (LPC8xx_SERIAL_UARTCLKDIV != LPC8xx_SERIAL_U_PCLK)
+ #define LPC8xx_SERIAL_UARTFRGDIV 0xFF
+ #else
+ #define LPC8xx_SERIAL_UARTFRGDIV 0x00
+ #endif
+#endif
+
+/**
+ * @brief UARTFRGMUL
+ * @details Fractional Baud rate generator numerator.
+ * Refer to LPC8xx User Manual 4.6.19 for calculation
+ * @note the *2, +1 and /2 are included to round to the nearest integer.
+ */
+#if !defined(LPC8xx_SERIAL_UARTFRGMUL) || defined(__DOXYGEN__)
+ #if (LPC8xx_SERIAL_UARTCLKDIV != LPC8xx_SERIAL_U_PCLK)
+ #define LPC8xx_SERIAL_UARTFRGMULT ( ( ( ( (LPC8xx_UARTDIVCLK- \
+ LPC8xx_SERIAL_U_PCLK) \
+ *256*2 ) \
+ /LPC8xx_SERIAL_U_PCLK ) \
+ +1 ) \
+ /2 )
+
+ #else
+ #define LPC8xx_SERIAL_UARTFRGMULT 0x00
+ #endif
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if (LPC8xx_SERIAL_UARTCLKDIV < 1) || (LPC8xx_SERIAL_UARTCLKDIV > 255)
+#error "invalid LPC8xx_SERIAL_UARTCLKDIV setting"
+#endif
+
+#if (LPC8xx_SERIAL_UARTFRGDIV != 0) && (LPC8xx_SERIAL_UARTFRGDIV != 255)
+#error "invalid LPC8xx_SERIAL_UARTFRGDIV setting"
+#endif
+
+#if (LPC8xx_SERIAL_UARTFRGMUL != 0) && (LPC8xx_SERIAL_UARTFRGMUL > 255)
+#error "invalid LPC8xx_SERIAL_UARTFRGMUL setting"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief LPC8xx Serial Driver configuration structure.
+ * @details An instance of this structure must be passed to @p sdStart()
+ * in order to configure and start a serial driver operations.
+ */
+typedef struct {
+ /**
+ * @brief Bit rate.
+ */
+ uint32_t sc_speed;
+ /**
+ * @brief Initialization value for the CFG register.
+ */
+ uint32_t sc_cfg;
+} SerialConfig;
+
+/**
+ * @brief @p SerialDriver specific data.
+ */
+#define _serial_driver_data \
+ _base_asynchronous_channel_data \
+ /* Driver state.*/ \
+ sdstate_t state; \
+ /* Input queue.*/ \
+ InputQueue iqueue; \
+ /* Output queue.*/ \
+ OutputQueue oqueue; \
+ /* Input circular buffer.*/ \
+ uint8_t ib[SERIAL_BUFFERS_SIZE]; \
+ /* Output circular buffer.*/ \
+ uint8_t ob[SERIAL_BUFFERS_SIZE]; \
+ /* End of the mandatory fields.*/ \
+ /* Pointer to the USART registers block.*/ \
+ LPC_USART_TypeDef *uart;
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if LPC8xx_SERIAL_USE_UART0 && !defined(__DOXYGEN__)
+extern SerialDriver SD1;
+#endif
+
+#if LPC8xx_SERIAL_USE_UART1 && !defined(__DOXYGEN__)
+extern SerialDriver SD2;
+#endif
+
+#if LPC8xx_SERIAL_USE_UART2 && !defined(__DOXYGEN__)
+extern SerialDriver SD3;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void sd_lld_init(void);
+ void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
+ void sd_lld_stop(SerialDriver *sdp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_SERIAL */
+
+#endif /* _SERIAL_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/spi_lld.c b/os/hal/platforms/LPC8xx/spi_lld.c new file mode 100644 index 000000000..d5a8a4047 --- /dev/null +++ b/os/hal/platforms/LPC8xx/spi_lld.c @@ -0,0 +1,385 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/spi_lld.c
+ * @brief LPC8xx low level SPI driver code.
+ *
+ * @addtogroup SPI
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_SPI || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+#if LPC8xx_SPI_USE_SPI0 || defined(__DOXYGEN__)
+/** @brief SPI1 driver identifier.*/
+SPIDriver SPID1;
+#endif
+
+#if LPC8xx_SPI_USE_SPI1 || defined(__DOXYGEN__)
+/** @brief SPI2 driver identifier.*/
+SPIDriver SPID2;
+#endif
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+static void spi_load_txdata(SPIDriver *spip) {
+
+ LPC_SPI_TypeDef *spi = spip->spi;
+
+ if (--spip->txcnt == 0) {
+ spi->TXCTRL |= SPI_TXCTRL_EOT;
+ }
+
+ if (spip->txptr != NULL) {
+ if ((spi->TXCTRL & SPI_TXCTRL_FLEN_MASK) > SPI_TXCTRL_FLEN(8)) {
+ const uint16_t *p = spip->txptr;
+ spi->TXDAT = *p++;
+ spip->txptr = p;
+ }
+ else {
+ const uint8_t *p = spip->txptr;
+ spi->TXDAT = *p++;
+ spip->txptr = p;
+ }
+ }
+ else
+ spi->TXDAT = 0xffff;
+}
+
+/**
+ * @brief Common IRQ handler.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ */
+static void spi_serve_interrupt(SPIDriver *spip) {
+
+ LPC_SPI_TypeDef *spi = spip->spi;
+
+ if (spi->INTSTAT & (SPI_STAT_RXOV | SPI_STAT_TXUR)) {
+ /* The overflow condition should never happen becausepriority is given
+ to receive but a hook macro is provided anyway...*/
+ LPC8xx_SPI_ERROR_HOOK(spip);
+ spi->STAT = (SPI_STAT_RXOV | SPI_STAT_TXUR);
+ }
+
+ if (spi->INTSTAT & SPI_STAT_TXRDY) {
+ spi_load_txdata( spip );
+ }
+
+ if (spip->txcnt == 0) {
+ spi->INTENCLR = (SPI_STAT_TXRDY | SPI_STAT_TXUR);
+ }
+
+ if (spi->INTSTAT & SPI_STAT_RXRDY) {
+ if (spip->rxptr != NULL) {
+ if ((spi->TXCTRL & SPI_TXCTRL_FLEN_MASK) > SPI_TXCTRL_FLEN(8)) {
+ uint16_t *p = spip->rxptr;
+ *p++ = spi->RXDAT;
+ spip->rxptr = p;
+ }
+ else {
+ uint8_t *p = spip->rxptr;
+ *p++ = spi->RXDAT;
+ spip->rxptr = p;
+ }
+ }
+ else
+ (void)spi->RXDAT;
+
+ if (--spip->rxcnt == 0) {
+ chDbgAssert(spip->txcnt == 0,
+ "spi_serve_interrupt(), #1", "counter out of synch");
+ /* Stops the IRQ sources.*/
+ spi->INTENCLR = (SPI_STAT_RXRDY | SPI_STAT_TXRDY |
+ SPI_STAT_RXOV | SPI_STAT_TXUR);
+
+ /* Portable SPI ISR code defined in the high level driver, note, it is
+ a macro.*/
+ _spi_isr_code(spip);
+ return;
+ }
+ }
+
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+#if LPC8xx_SPI_USE_SPI0 || defined(__DOXYGEN__)
+/**
+ * @brief SPI0 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(Vector40) {
+
+ CH_IRQ_PROLOGUE();
+ spi_serve_interrupt(&SPID1);
+ CH_IRQ_EPILOGUE();
+}
+#endif
+
+#if LPC8xx_SPI_USE_SPI1 || defined(__DOXYGEN__)
+/**
+ * @brief SPI1 interrupt handler.
+ *
+ * @isr
+ */
+CH_IRQ_HANDLER(Vector44) {
+
+ CH_IRQ_PROLOGUE();
+ spi_serve_interrupt(&SPID2);
+ CH_IRQ_EPILOGUE();
+}
+#endif
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Low level SPI driver initialization.
+ *
+ * @notapi
+ */
+void spi_lld_init(void) {
+
+#if LPC8xx_SPI_USE_SPI0
+ spiObjectInit(&SPID1);
+ SPID1.spi = LPC_SPI0;
+#endif
+
+#if LPC8xx_SPI_USE_SPI1
+ spiObjectInit(&SPID2);
+ SPID2.spi = LPC_SPI1;
+#endif
+}
+
+/**
+ * @brief Configures and activates the SPI peripheral.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_start(SPIDriver *spip) {
+
+ if (spip->state == SPI_STOP) {
+#if LPC8xx_SPI_USE_SPI0
+ if (&SPID1 == spip) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<11);
+ LPC_SYSCON->PRESETCTRL |= (1<<0);
+ spip->spi->DIV = LPC8xx_SPI_SPI0CLKDIV;
+ nvicEnableVector(SPI0_IRQn,
+ CORTEX_PRIORITY_MASK(LPC8xx_SPI_SPI0_IRQ_PRIORITY));
+ }
+#endif
+#if LPC8xx_SPI_USE_SPI1
+ if (&SPID2 == spip) {
+ LPC_SYSCON->SYSAHBCLKCTRL |= (1<<12);
+ LPC_SYSCON->PRESETCTRL |= (1<<1);
+ spip->spi->DIV = LPC8xx_SPI_SPI1CLKDIV;
+ nvicEnableVector(SPI1_IRQn,
+ CORTEX_PRIORITY_MASK(LPC8xx_SPI_SPI1_IRQ_PRIORITY));
+ }
+#endif
+ }
+
+ spip->spi->DLY = spip->config->dly;
+ spip->spi->TXCTRL = spip->config->txctrl;
+ spip->spi->STAT = (SPI_STAT_RXOV | SPI_STAT_TXUR);
+ spip->spi->CFG = spip->config->cfg | SPI_CFG_ENABLE;
+}
+
+/**
+ * @brief Deactivates the SPI peripheral.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_stop(SPIDriver *spip) {
+
+ if (spip->state != SPI_STOP) {
+ spip->spi->CFG = 0;
+
+#if LPC8xx_SPI_USE_SPI0
+ if (&SPID1 == spip) {
+ nvicDisableVector(SPI0_IRQn);
+ LPC_SYSCON->PRESETCTRL &= ~(1<<0);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<11);
+ }
+#endif
+
+#if LPC8xx_SPI_USE_SPI1
+ if (&SPID2 == spip) {
+ nvicDisableVector(SPI1_IRQn);
+ LPC_SYSCON->PRESETCTRL &= ~(1<<1);
+ LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<12);
+ }
+#endif
+
+ }
+}
+
+/**
+ * @brief Asserts the slave select signal and prepares for transfers.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_select(SPIDriver *spip) {
+ /* Hardware controls SSEL */
+ (void)spip;
+}
+
+/**
+ * @brief Deasserts the slave select signal.
+ * @details The previously selected peripheral is unselected.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ *
+ * @notapi
+ */
+void spi_lld_unselect(SPIDriver *spip) {
+ /* Hardware controls SSEL */
+ (void)spip;
+}
+
+/**
+ * @brief Exchanges data on the SPI bus.
+ * @details This asynchronous function starts a simultaneous transmit/receive
+ * operation.
+ * @post At the end of the operation the configured callback is invoked.
+ * @note The buffers are organized as uint8_t arrays for data sizes below or
+ * equal to 8 bits else it is organized as uint16_t arrays.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ * @param[in] n number of words to be exchanged
+ * @param[in] txbuf the pointer to the transmit buffer
+ * @param[out] rxbuf the pointer to the receive buffer
+ *
+ * @notapi
+ */
+void spi_lld_exchange(SPIDriver *spip, size_t n,
+ const void *txbuf, void *rxbuf) {
+
+ spip->rxptr = rxbuf;
+ spip->txptr = txbuf;
+ spip->rxcnt = spip->txcnt = n;
+ spip->spi->TXCTRL &= ~SPI_TXCTRL_EOT;
+ spi_load_txdata(spip);
+
+ if (spip->txcnt == 0)
+ spip->spi->INTENSET = (SPI_STAT_RXRDY | SPI_STAT_RXOV);
+ else
+ spip->spi->INTENSET = (SPI_STAT_RXRDY | SPI_STAT_TXRDY |
+ SPI_STAT_RXOV | SPI_STAT_TXUR);
+
+}
+
+/**
+ * @brief Ignores data on the SPI bus.
+ * @details This function transmits a series of idle words on the SPI bus and
+ * ignores the received data. This function can be invoked even
+ * when a slave select signal has not been yet asserted.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ * @param[in] n number of words to be ignored
+ *
+ * @notapi
+ */
+void spi_lld_ignore(SPIDriver *spip, size_t n) {
+
+ spi_lld_exchange( spip, n, NULL, NULL);
+}
+
+/**
+ * @brief Sends data over the SPI bus.
+ * @details This asynchronous function starts a transmit operation.
+ * @post At the end of the operation the configured callback is invoked.
+ * @note The buffers are organized as uint8_t arrays for data sizes below or
+ * equal to 8 bits else it is organized as uint16_t arrays.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ * @param[in] n number of words to send
+ * @param[in] txbuf the pointer to the transmit buffer
+ *
+ * @notapi
+ */
+void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf) {
+
+ spi_lld_exchange( spip, n, txbuf, NULL);
+}
+
+/**
+ * @brief Receives data from the SPI bus.
+ * @details This asynchronous function starts a receive operation.
+ * @post At the end of the operation the configured callback is invoked.
+ * @note The buffers are organized as uint8_t arrays for data sizes below or
+ * equal to 8 bits else it is organized as uint16_t arrays.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ * @param[in] n number of words to receive
+ * @param[out] rxbuf the pointer to the receive buffer
+ *
+ * @notapi
+ */
+void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf) {
+
+ spi_lld_exchange( spip, n, NULL, rxbuf);
+}
+
+/**
+ * @brief Exchanges one frame using a polled wait.
+ * @details This synchronous function exchanges one frame using a polled
+ * synchronization method. This function is useful when exchanging
+ * small amount of data on high speed channels, usually in this
+ * situation is much more efficient just wait for completion using
+ * polling than suspending the thread waiting for an interrupt.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object
+ * @param[in] frame the data frame to send over the SPI bus
+ * @return The received data frame from the SPI bus.
+ */
+uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame) {
+
+ spip->spi->TXCTRL |= SPI_TXCTRL_EOT;
+ spip->spi->TXDAT = frame;
+ while ((spip->spi->STAT & SPI_STAT_RXRDY) == 0)
+ ;
+ return (uint16_t)spip->spi->RXDAT;
+}
+
+#endif /* HAL_USE_SPI */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/spi_lld.h b/os/hal/platforms/LPC8xx/spi_lld.h new file mode 100644 index 000000000..4acd52547 --- /dev/null +++ b/os/hal/platforms/LPC8xx/spi_lld.h @@ -0,0 +1,285 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file LPC8xx/spi_lld.h
+ * @brief LPC8xx low level SPI driver header.
+ *
+ * @addtogroup SPI
+ * @{
+ */
+
+#ifndef _SPI_LLD_H_
+#define _SPI_LLD_H_
+
+#if HAL_USE_SPI || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+#define SPI_CFG_ENABLE (1<<0)
+#define SPI_CFG_MASTER (1<<2)
+#define SPI_CFG_LSBF (1<<3)
+#define SPI_CFG_CHPA (1<<4)
+#define SPI_CFG_CPOL (1<<5)
+#define SPI_CFG_LOOP (1<<7)
+#define SPI_CFG_SPOL (1<<8)
+
+#define SPI_DLY_PRE(n) (((n)&0x0f)<< 0)
+#define SPI_DLY_POST(n) (((n)&0x0f)<< 4)
+#define SPI_DLY_FRAME(n) (((n)&0x0f)<< 8)
+#define SPI_DLY_TFER(n) (((n)&0x0f)<<12)
+
+#define SPI_STAT_RXRDY (1<<0)
+#define SPI_STAT_TXRDY (1<<1)
+#define SPI_STAT_RXOV (1<<2)
+#define SPI_STAT_TXUR (1<<3)
+#define SPI_STAT_SSA (1<<4)
+#define SPI_STAT_SSD (1<<5)
+#define SPI_STAT_STALL (1<<6)
+#define SPI_STAT_EOT (1<<7)
+#define SPI_STAT_IDLE (1<<8)
+
+#define SPI_TXCTRL_TXSSELN (1<<16)
+#define SPI_TXCTRL_EOT (1<<20)
+#define SPI_TXCTRL_EOF (1<<21)
+#define SPI_TXCTRL_RXIGNORE (1<<22)
+#define SPI_TXCTRL_FLEN(n) (((n)-1)<<24)
+#define SPI_TXCTRL_FLEN_MASK (0x0f<<24)
+
+
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @brief SPI1 driver enable switch.
+ * @details If set to @p TRUE the support for device SPI0 is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(LPC8xx_SPI_USE_SPI0) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_USE_SPI0 TRUE
+#endif
+
+/**
+ * @brief SPI2 driver enable switch.
+ * @details If set to @p TRUE the support for device SPI1 is included.
+ * @note The default is @p TRUE.
+ */
+#if !defined(LPC8xx_SPI_USE_SPI1) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_USE_SPI1 FALSE
+#endif
+
+/**
+ * @brief SPI0 PCLK divider.
+ */
+#if !defined(LPC8xx_SPI_SPI0CLKDIV) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_SPI0CLKDIV 1
+#endif
+
+/**
+ * @brief SPI1 PCLK divider.
+ */
+#if !defined(LPC8xx_SPI_SPI1CLKDIV) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_SPI1CLKDIV 1
+#endif
+
+/**
+ * @brief SPI0 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_SPI_SPI0_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_SPI0_IRQ_PRIORITY 1
+#endif
+
+/**
+ * @brief SPI1 interrupt priority level setting.
+ */
+#if !defined(LPC8xx_SPI_SPI1_IRQ_PRIORITY) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_SPI1_IRQ_PRIORITY 1
+#endif
+
+/**
+ * @brief Overflow error hook.
+ * @details The default action is to stop the system.
+ */
+#if !defined(LPC8xx_SPI_ERROR_HOOK) || defined(__DOXYGEN__)
+#define LPC8xx_SPI_ERROR_HOOK(spip) chSysHalt()
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if (LPC8xx_SPI_SPI0CLKDIV < 1) || (LPC8xx_SPI_SPI0CLKDIV > 255)
+#error "invalid LPC8xx_SPI_SSP0CLKDIV setting"
+#endif
+
+#if (LPC8xx_SPI_SPI1CLKDIV < 1) || (LPC8xx_SPI_SPI1CLKDIV > 255)
+#error "invalid LPC8xx_SPI_SSP1CLKDIV setting"
+#endif
+
+#if !LPC8xx_SPI_USE_SPI0 && !LPC8xx_SPI_USE_SPI1
+#error "SPI driver activated but no SPI peripheral assigned"
+#endif
+
+/**
+ * @brief SPI0 clock.
+ */
+#define LPC8xx_SPI_SPI0_PCLK \
+ (LPC8xx_SYSCLK / LPC8xx_SPI_SPI0CLKDIV)
+
+/**
+ * @brief SPI1 clock.
+ */
+#define LPC8xx_SPI_SPI1_PCLK \
+ (LPC8xx_SYSCLK / LPC8xx_SPI_SPI1CLKDIV)
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Type of a structure representing an SPI driver.
+ */
+typedef struct SPIDriver SPIDriver;
+
+/**
+ * @brief SPI notification callback type.
+ *
+ * @param[in] spip pointer to the @p SPIDriver object triggering the
+ * callback
+ */
+typedef void (*spicallback_t)(SPIDriver *spip);
+
+/**
+ * @brief Driver configuration structure.
+ */
+typedef struct {
+ /**
+ * @brief Operation complete callback or @p NULL.
+ */
+ spicallback_t end_cb;
+ /* End of the mandatory fields.*/
+
+ /**
+ * @brief SPI CFG initialization data.
+ */
+ uint16_t cfg;
+ /**
+ * @brief SPI DLY initialization data.
+ */
+ uint16_t dly;
+ /**
+ * @brief SPI TXCTRL initialization data.
+ */
+ uint32_t txctrl;
+} SPIConfig;
+
+/**
+ * @brief Structure representing a SPI driver.
+ */
+struct SPIDriver {
+ /**
+ * @brief Driver state.
+ */
+ spistate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const SPIConfig *config;
+#if SPI_USE_WAIT || defined(__DOXYGEN__)
+ /**
+ * @brief Waiting thread.
+ */
+ Thread *thread;
+#endif /* SPI_USE_WAIT */
+#if SPI_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
+#if CH_USE_MUTEXES || defined(__DOXYGEN__)
+ /**
+ * @brief Mutex protecting the bus.
+ */
+ Mutex mutex;
+#elif CH_USE_SEMAPHORES
+ Semaphore semaphore;
+#endif
+#endif /* SPI_USE_MUTUAL_EXCLUSION */
+#if defined(SPI_DRIVER_EXT_FIELDS)
+ SPI_DRIVER_EXT_FIELDS
+#endif
+ /* End of the mandatory fields.*/
+ /**
+ * @brief Pointer to the SPI registers block.
+ */
+ LPC_SPI_TypeDef *spi;
+ /**
+ * @brief Number of words yet to be received.
+ */
+ uint32_t rxcnt;
+ /**
+ * @brief Receive pointer or @p NULL.
+ */
+ void *rxptr;
+ /**
+ * @brief Number of words yet to be transmitted.
+ */
+ uint32_t txcnt;
+ /**
+ * @brief Transmit pointer or @p NULL.
+ */
+ const void *txptr;
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if LPC8xx_SPI_USE_SPI0 && !defined(__DOXYGEN__)
+extern SPIDriver SPID1;
+#endif
+
+#if LPC8xx_SPI_USE_SPI1 && !defined(__DOXYGEN__)
+extern SPIDriver SPID2;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void spi_lld_init(void);
+ void spi_lld_start(SPIDriver *spip);
+ void spi_lld_stop(SPIDriver *spip);
+ void spi_lld_select(SPIDriver *spip);
+ void spi_lld_unselect(SPIDriver *spip);
+ void spi_lld_ignore(SPIDriver *spip, size_t n);
+ void spi_lld_exchange(SPIDriver *spip, size_t n,
+ const void *txbuf, void *rxbuf);
+ void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf);
+ void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf);
+ uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_SPI */
+
+#endif /* _SPI_LLD_H_ */
+
+/** @} */
diff --git a/os/hal/platforms/LPC8xx/system_LPC8xx.h b/os/hal/platforms/LPC8xx/system_LPC8xx.h new file mode 100644 index 000000000..108baa842 --- /dev/null +++ b/os/hal/platforms/LPC8xx/system_LPC8xx.h @@ -0,0 +1,62 @@ +/******************************************************************************
+ * @file: system_LPC8xx.h
+ * @purpose: CMSIS Cortex-M0+ Device Peripheral Access Layer Header File
+ * for the NXP LPC8xx Device Series
+ * @version: V1.0
+ * @date: 16. Aug. 2012
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (C) 2012 ARM Limited. All rights reserved.
+ *
+ * ARM Limited (ARM) is supplying this software for use with Cortex-M0+
+ * processor based microcontrollers. This file can be freely distributed
+ * within development tools that are supporting such ARM based processors.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+ * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
+ * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ *
+ ******************************************************************************/
+
+
+#ifndef __SYSTEM_LPC8xx_H
+#define __SYSTEM_LPC8xx_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
+
+
+/**
+ * Initialize the system
+ *
+ * @param none
+ * @return none
+ *
+ * @brief Setup the microcontroller system.
+ * Initialize the System and update the SystemCoreClock variable.
+ */
+extern void SystemInit (void);
+
+/**
+ * Update SystemCoreClock variable
+ *
+ * @param none
+ * @return none
+ *
+ * @brief Updates the SystemCoreClock with current core Clock
+ * retrieved from cpu registers.
+ */
+extern void SystemCoreClockUpdate (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __SYSTEM_LPC8xx_H */
|