From d5a880807b47188aa5d721f4aff491bc46c6f186 Mon Sep 17 00:00:00 2001 From: flabbergast Date: Tue, 22 Mar 2016 17:51:46 +0000 Subject: [KINETIS] HAL cleanup/update. New entries in kinetis_registry.h to support new MCUs. Moved registers to ext/CMSIS, like it is done for STM32. Move the same drivers to LLD. Add USB driver. --- os/hal/ports/KINETIS/LLD/pal_lld.c | 245 +++++++++++++++++++++++++++++++++++++ 1 file changed, 245 insertions(+) create mode 100644 os/hal/ports/KINETIS/LLD/pal_lld.c (limited to 'os/hal/ports/KINETIS/LLD/pal_lld.c') diff --git a/os/hal/ports/KINETIS/LLD/pal_lld.c b/os/hal/ports/KINETIS/LLD/pal_lld.c new file mode 100644 index 0000000..b307833 --- /dev/null +++ b/os/hal/ports/KINETIS/LLD/pal_lld.c @@ -0,0 +1,245 @@ +/* + ChibiOS - Copyright (C) 2014-2015 Fabio Utzig + + 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 KINETIS/LLD/pal_lld.c + * @brief PAL subsystem low level driver. + * + * @addtogroup PAL + * @{ + */ + +#include "osal.h" +#include "hal.h" + +#if HAL_USE_PAL || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local variables and types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +/** + * @brief Reads a logical state from an I/O pad. + * @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 + * @return The logical state. + * @retval PAL_LOW low logical state. + * @retval PAL_HIGH high logical state. + * + * @notapi + */ +uint8_t _pal_lld_readpad(ioportid_t port, + uint8_t pad) { + + return (port->PDIR & ((uint32_t) 1 << pad)) ? PAL_HIGH : PAL_LOW; +} + +/** + * @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 + */ +void _pal_lld_writepad(ioportid_t port, + uint8_t pad, + uint8_t bit) { + + if (bit == PAL_HIGH) + port->PDOR |= ((uint32_t) 1 << pad); + else + port->PDOR &= ~((uint32_t) 1 << pad); +} + +/** + * @brief Pad mode setup. + * @details This function programs a pad with the specified mode. + * @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. + * @note Programming an unknown or unsupported mode is silently ignored. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * @param[in] mode pad mode + * + * @notapi + */ +void _pal_lld_setpadmode(ioportid_t port, + uint8_t pad, + iomode_t mode) { + + PORT_TypeDef *portcfg = NULL; + + chDbgAssert(pad < PADS_PER_PORT, "pal_lld_setpadmode() #1, invalid pad"); + + if (mode == PAL_MODE_OUTPUT_PUSHPULL) + port->PDDR |= ((uint32_t) 1 << pad); + else + port->PDDR &= ~((uint32_t) 1 << pad); + + if (port == IOPORT1) + portcfg = PORTA; + else if (port == IOPORT2) + portcfg = PORTB; + else if (port == IOPORT3) + portcfg = PORTC; + else if (port == IOPORT4) + portcfg = PORTD; + else if (port == IOPORT5) + portcfg = PORTE; + + chDbgAssert(portcfg != NULL, "pal_lld_setpadmode() #2, invalid port"); + + switch (mode) { + case PAL_MODE_RESET: + case PAL_MODE_INPUT: + case PAL_MODE_OUTPUT_PUSHPULL: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(1); + break; +#if KINETIS_GPIO_HAS_OPENDRAIN + case PAL_MODE_OUTPUT_OPENDRAIN: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(1) | + PORTx_PCRn_ODE; + break; +#else +#undef PAL_MODE_OUTPUT_OPENDRAIN +#endif + case PAL_MODE_INPUT_PULLUP: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(1) | + PORTx_PCRn_PE | + PORTx_PCRn_PS; + break; + case PAL_MODE_INPUT_PULLDOWN: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(1) | + PORTx_PCRn_PE; + break; + case PAL_MODE_UNCONNECTED: + case PAL_MODE_INPUT_ANALOG: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(0); + break; + case PAL_MODE_ALTERNATIVE_1: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(1); + break; + case PAL_MODE_ALTERNATIVE_2: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(2); + break; + case PAL_MODE_ALTERNATIVE_3: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(3); + break; + case PAL_MODE_ALTERNATIVE_4: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(4); + break; + case PAL_MODE_ALTERNATIVE_5: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(5); + break; + case PAL_MODE_ALTERNATIVE_6: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(6); + break; + case PAL_MODE_ALTERNATIVE_7: + portcfg->PCR[pad] = PIN_MUX_ALTERNATIVE(7); + break; + } +} + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief Kinetis I/O ports configuration. + * @details Ports A-E clocks enabled. + * + * @param[in] config the Kinetis ports configuration + * + * @notapi + */ +void _pal_lld_init(const PALConfig *config) { + + int i, j; + + /* Enable clocking on all Ports */ + SIM->SCGC5 |= SIM_SCGC5_PORTA | + SIM_SCGC5_PORTB | + SIM_SCGC5_PORTC | + SIM_SCGC5_PORTD | + SIM_SCGC5_PORTE; + + /* Initial PORT and GPIO setup */ + for (i = 0; i < TOTAL_PORTS; i++) { + for (j = 0; j < PADS_PER_PORT; j++) { + pal_lld_setpadmode(config->ports[i].port, + j, + config->ports[i].pads[j]); + } + } +} + +/** + * @brief Pads mode setup. + * @details This function programs a pads group belonging to the same port + * with the specified mode. + * + * @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) { + + int i; + + (void)mask; + + for (i = 0; i < PADS_PER_PORT; i++) { + pal_lld_setpadmode(port, i, mode); + } +} + +#endif /* HAL_USE_PAL */ + +/** @} */ -- cgit v1.2.3