git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6108 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 0 insertions, 296 deletions

diff --git a/os/hal/platforms/LPC11Uxx/serial_lld.c b/os/hal/platforms/LPC11Uxx/serial_lld.c
deleted file mode 100644
index 17587cbb0..000000000
--- a/os/hal/platforms/LPC11Uxx/serial_lld.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/*

-    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    LPC11Uxx/serial_lld.c

- * @brief   LPC11Uxx low level serial driver code.

- *

- * @addtogroup SERIAL

- * @{

- */

-

-#include "ch.h"

-#include "hal.h"

-

-#if HAL_USE_SERIAL || defined(__DOXYGEN__)

-

-/*===========================================================================*/

-/* Driver exported variables.                                                */

-/*===========================================================================*/

-

-#if LPC_SERIAL_USE_UART0 || defined(__DOXYGEN__)

-/** @brief UART0 serial driver identifier.*/

-SerialDriver SD1;

-#endif

-

-/*===========================================================================*/

-/* Driver local variables and types.                                         */

-/*===========================================================================*/

-

-/** @brief Driver default configuration.*/

-static const SerialConfig default_config = {

-  SERIAL_DEFAULT_BITRATE,

-  LCR_WL8 | LCR_STOP1 | LCR_NOPARITY,

-  FCR_TRIGGER0

-};

-

-/*===========================================================================*/

-/* Driver local functions.                                                   */

-/*===========================================================================*/

-

-/**

- * @brief   USART initialization.

- *

- * @param[in] sdp       communication channel associated to the USART

- * @param[in] config    the architecture-dependent serial driver configuration

- */

-static void uart_init(SerialDriver *sdp, const SerialConfig *config) {

-  LPC_USART_Type *u = sdp->uart;

-

-  uint32_t div = LPC_SERIAL_UART0_PCLK / (config->sc_speed << 4);

-  u->LCR = config->sc_lcr | LCR_DLAB;

-  u->DLL = div;

-  u->DLM = div >> 8;

-  u->LCR = config->sc_lcr;

-  u->FCR = FCR_ENABLE | FCR_RXRESET | FCR_TXRESET | config->sc_fcr;

-  u->ACR = 0;

-  u->FDR = 0x10;

-  u->TER = TER_ENABLE;

-  u->IER = IER_RBR | IER_STATUS;

-}

-

-/**

- * @brief   USART de-initialization.

- *

- * @param[in] u         pointer to an USART I/O block

- */

-static void uart_deinit(LPC_USART_Type *u) {

-

-  u->LCR = LCR_DLAB;

-  u->DLL = 1;

-  u->DLM = 0;

-  u->LCR = 0;

-  u->FDR = 0x10;

-  u->IER = 0;

-  u->FCR = FCR_RXRESET | FCR_TXRESET;

-  u->ACR = 0;

-  u->TER = TER_ENABLE;

-}

-

-/**

- * @brief   Error handling routine.

- *

- * @param[in] sdp       communication channel associated to the UART

- * @param[in] err       UART LSR register value

- */

-static void set_error(SerialDriver *sdp, IOREG32 err) {

-  flagsmask_t sts = 0;

-

-  if (err & LSR_OVERRUN)

-    sts |= SD_OVERRUN_ERROR;

-  if (err & LSR_PARITY)

-    sts |= SD_PARITY_ERROR;

-  if (err & LSR_FRAMING)

-    sts |= SD_FRAMING_ERROR;

-  if (err & LSR_BREAK)

-    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_Type *u = sdp->uart;

-

-  while (TRUE) {

-    switch (u->IIR & IIR_SRC_MASK) {

-    case IIR_SRC_NONE:

-      return;

-    case IIR_SRC_ERROR:

-      set_error(sdp, u->LSR);

-      break;

-    case IIR_SRC_TIMEOUT:

-    case IIR_SRC_RX:

-      chSysLockFromIsr();

-      if (chIQIsEmptyI(&sdp->iqueue))

-        chnAddFlagsI(sdp, CHN_INPUT_AVAILABLE);

-      chSysUnlockFromIsr();

-      while (u->LSR & LSR_RBR_FULL) {

-        chSysLockFromIsr();

-        if (chIQPutI(&sdp->iqueue, u->RBR) < Q_OK)

-          chnAddFlagsI(sdp, SD_OVERRUN_ERROR);

-        chSysUnlockFromIsr();

-      }

-      break;

-    case IIR_SRC_TX:

-      {

-        int i = LPC_SERIAL_FIFO_PRELOAD;

-        do {

-          msg_t b;

-

-          chSysLockFromIsr();

-          b = chOQGetI(&sdp->oqueue);

-          chSysUnlockFromIsr();

-          if (b < Q_OK) {

-            u->IER &= ~IER_THRE;

-            chSysLockFromIsr();

-            chnAddFlagsI(sdp, CHN_OUTPUT_EMPTY);

-            chSysUnlockFromIsr();

-            break;

-          }

-          u->THR = b;

-        } while (--i);

-      }

-      break;

-    default:

-      (void) u->THR;

-      (void) u->RBR;

-    }

-  }

-}

-

-/**

- * @brief   Attempts a TX FIFO preload.

- */

-static void preload(SerialDriver *sdp) {

-  LPC_USART_Type *u = sdp->uart;

-

-  if (u->LSR & LSR_THRE) {

-    int i = LPC_SERIAL_FIFO_PRELOAD;

-    do {

-      msg_t b = chOQGetI(&sdp->oqueue);

-      if (b < Q_OK) {

-        chnAddFlagsI(sdp, CHN_OUTPUT_EMPTY);

-        return;

-      }

-      u->THR = b;

-    } while (--i);

-  }

-  u->IER |= IER_THRE;

-}

-

-/**

- * @brief   Driver SD1 output notification.

- */

-#if LPC_SERIAL_USE_UART0 || defined(__DOXYGEN__)

-static void notify1(GenericQueue *qp) {

-

-  (void)qp;

-  preload(&SD1);

-}

-#endif

-

-/*===========================================================================*/

-/* Driver interrupt handlers.                                                */

-/*===========================================================================*/

-

-/**

- * @brief   UART0 IRQ handler.

- *

- * @isr

- */

-#if LPC_SERIAL_USE_UART0 || defined(__DOXYGEN__)

-CH_IRQ_HANDLER(Vector94) {

-

-  CH_IRQ_PROLOGUE();

-

-  serve_interrupt(&SD1);

-

-  CH_IRQ_EPILOGUE();

-}

-#endif

-

-/*===========================================================================*/

-/* Driver exported functions.                                                */

-/*===========================================================================*/

-

-/**

- * @brief   Low level serial driver initialization.

- *

- * @notapi

- */

-void sd_lld_init(void) {

-

-#if LPC_SERIAL_USE_UART0

-  sdObjectInit(&SD1, NULL, notify1);

-  SD1.uart = LPC_USART;

-#endif

-}

-

-/**

- * @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 LPC_SERIAL_USE_UART0

-    if (&SD1 == sdp) {

-      LPC_SYSCON->SYSAHBCLKCTRL |= (1 << 12);

-      LPC_SYSCON->UARTCLKDIV = LPC_SERIAL_UART0CLKDIV;

-      nvicEnableVector(UART_IRQn,

-                       CORTEX_PRIORITY_MASK(LPC_SERIAL_UART0_IRQ_PRIORITY));

-    }

-#endif

-  }

-  uart_init(sdp, config);

-}

-

-/**

- * @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) {

-    uart_deinit(sdp->uart);

-#if LPC_SERIAL_USE_UART0

-    if (&SD1 == sdp) {

-      LPC_SYSCON->UARTCLKDIV = 0;

-      LPC_SYSCON->SYSAHBCLKCTRL &= ~(1 << 12);

-      nvicDisableVector(UART_IRQn);

-      return;

-    }

-#endif

-  }

-}

-

-#endif /* HAL_USE_SERIAL */

-

-/** @} */