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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6755 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2014-03-05 10:42:18 +00:00
parent a6224d1964
commit bfd29a27c2
2 changed files with 29 additions and 24 deletions
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11
os/hal/include/dac.h
View File

@ -1,6 +1,6 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
@ -64,10 +64,6 @@
/* Derived constants and error checks. */
/*===========================================================================*/
#if DAC_USE_MUTUAL_EXCLUSION && !CH_USE_MUTEXES && !CH_USE_SEMAPHORES && !NIL_USE_MUTEXES && !NIL_USE_SEMAPHORES
//#error "DAC_USE_MUTUAL_EXCLUSION requires CH_USE_MUTEXES and/or CH_USE_SEMAPHORES"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
@ -118,7 +114,6 @@ typedef enum {
*/
#define _dac_reset_i(dacp) osalThreadResumeI(&(dacp)->thread, MSG_RESET)
/**
* @brief Resumes a thread waiting for a conversion completion.
*
@ -138,7 +133,7 @@ typedef enum {
#define _dac_wakeup_isr(dacp) { \
osalSysLockFromISR(); \
osalThreadResumeI(&(dacp)->thread, MSG_OK); \
osalSysUnlockFromISR(); \
osalSysUnlockFromISR(); \
}
/**
@ -151,7 +146,7 @@ typedef enum {
#define _dac_timeout_isr(dacp) { \
osalSysLockFromISR(); \
osalThreadResumeI(&(dacp)->thread, MSG_TIMEOUT); \
osalSysUnlockFromISR(); \
osalSysUnlockFromISR(); \
}
#else /* !DAC_USE_WAIT */

42
os/hal/src/dac.c
View File

@ -1,6 +1,6 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
@ -97,11 +97,14 @@ void dacStart(DACDriver *dacp, const DACConfig *config) {
osalDbgCheck((dacp != NULL) && (config != NULL));
osalSysLock();
osalDbgAssert((dacp->state == DAC_STOP) || (dacp->state == DAC_READY),
"invalid state");
"invalid state");
dacp->config = config;
dac_lld_start(dacp);
dacp->state = DAC_READY;
osalSysUnlock();
}
@ -119,10 +122,13 @@ void dacStop(DACDriver *dacp) {
osalDbgCheck(dacp != NULL);
osalSysLock();
osalDbgAssert((dacp->state == DAC_STOP) || (dacp->state == DAC_READY),
"invalid state");
"invalid state");
dac_lld_stop(dacp);
dacp->state = DAC_STOP;
osalSysUnlock();
}
@ -177,11 +183,11 @@ void dacStartConversionI(DACDriver *dacp,
osalDbgCheckClassI();
osalDbgCheck((dacp != NULL) && (grpp != NULL) && (samples != NULL) &&
((depth == 1) || ((depth & 1) == 0)));
((depth == 1) || ((depth & 1) == 0)));
osalDbgAssert((dacp->state == DAC_READY) ||
(dacp->state == DAC_COMPLETE) ||
(dacp->state == DAC_ERROR),
"not ready");
(dacp->state == DAC_COMPLETE) ||
(dacp->state == DAC_ERROR),
"not ready");
dacp->samples = samples;
dacp->depth = depth;
@ -205,15 +211,18 @@ void dacStopConversion(DACDriver *dacp) {
osalDbgCheck(dacp != NULL);
osalSysLock();
osalDbgAssert((dacp->state == DAC_READY) ||
(dacp->state == DAC_ACTIVE),
"invalid state");
(dacp->state == DAC_ACTIVE),
"invalid state");
if (dacp->state != DAC_READY) {
dac_lld_stop_conversion(dacp);
dacp->grpp = NULL;
dacp->state = DAC_READY;
_dac_reset_s(dacp);
}
osalSysUnlock();
}
@ -232,9 +241,9 @@ void dacStopConversionI(DACDriver *dacp) {
osalDbgCheckClassI();
osalDbgCheck(dacp != NULL);
osalDbgAssert((dacp->state == DAC_READY) ||
(dacp->state == DAC_ACTIVE) ||
(dacp->state == DAC_COMPLETE),
"invalid state");
(dacp->state == DAC_ACTIVE) ||
(dacp->state == DAC_COMPLETE),
"invalid state");
if (dacp->state != DAC_READY) {
dac_lld_stop_conversion(dacp);
@ -259,11 +268,11 @@ void dacStopConversionI(DACDriver *dacp) {
* @param[in] depth buffer depth (matrix rows number). The buffer depth
* must be one or an even number.
* @return The operation result.
* @retval RDY_OK Conversion finished.
* @retval RDY_RESET The conversion has been stopped using
* @retval MSG_OK Conversion finished.
* @retval MSG_RESET The conversion has been stopped using
* @p acdStopConversion() or @p acdStopConversionI(),
* the result buffer may contain incorrect data.
* @retval RDY_TIMEOUT The conversion has been stopped because an hardware
* @retval MSG_TIMEOUT The conversion has been stopped because an hardware
* error.
*
* @api
@ -275,9 +284,10 @@ msg_t dacConvert(DACDriver *dacp,
msg_t msg;
osalSysLock();
osalDbgAssert(dacp->thread == NULL, "already waiting");
dacStartConversionI(dacp, grpp, samples, depth);
msg = osalThreadSuspendS(&dacp->thread);
osalSysUnlock();
return msg;
}