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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4128 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2012-04-23 17:43:42 +00:00
parent cdabdb4631
commit e817b7032d
8 changed files with 193 additions and 162 deletions
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26
os/hal/include/ext.h
View File

@ -36,7 +36,7 @@
/*===========================================================================*/
/**
* @name EXT channels modes
* @name EXT channel modes
* @{
*/
#define EXT_CH_MODE_EDGES_MASK 3 /**< @brief Mask of edges field. */
@ -104,6 +104,27 @@ typedef struct EXTDriver EXTDriver;
* @iclass
*/
#define extChannelDisableI(extp, channel) ext_lld_channel_disable(extp, channel)
/**
* @brief Changes the operation mode of a channel.
* @note This function attempts to write over the current configuration
* structure that must have been not declared constant. This
* violates the @p const qualifier in @p extStart() but it is
* intentional. This function cannot be used if the configuration
* structure is declared @p const.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be changed
* @param[in] extcp new configuration for the channel
*
* @api
*/
#define extSetChannelMode(extp, channel, extcp) { \
chSysLock(); \
extSetChannelModeI(extp, channel, extcp); \
chSysUnlock(); \
}
/** @} */
/*===========================================================================*/
@ -119,6 +140,9 @@ extern "C" {
void extStop(EXTDriver *extp);
void extChannelEnable(EXTDriver *extp, expchannel_t channel);
void extChannelDisable(EXTDriver *extp, expchannel_t channel);
void extSetChannelModeI(EXTDriver *extp,
expchannel_t channel,
const EXTChannelConfig *extcp);
#ifdef __cplusplus
}
#endif

72
os/hal/platforms/STM32/ext_lld.c
View File

@ -430,7 +430,6 @@ void ext_lld_init(void) {
*/
void ext_lld_start(EXTDriver *extp) {
unsigned i;
uint32_t imr, emr, rtsr, ftsr;
if (extp->state == EXT_STOP) {
/* Clock activation.*/
@ -489,37 +488,12 @@ void ext_lld_start(EXTDriver *extp) {
CORTEX_PRIORITY_MASK(STM32_EXT_EXTI18_IRQ_PRIORITY));
#endif
}
/* Configuration.*/
imr = emr = rtsr = ftsr = 0;
for (i = 0; i < EXT_MAX_CHANNELS; i++) {
if (extp->config->channels[i].mode & EXT_CH_MODE_AUTOSTART) {
if (extp->config->channels[i].cb != NULL)
imr |= (1 << i);
/* 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
emr |= (1 << i);
if (extp->config->channels[i].mode & EXT_CH_MODE_RISING_EDGE)
rtsr |= (1 << i);
if (extp->config->channels[i].mode & EXT_CH_MODE_FALLING_EDGE)
ftsr |= (1 << i);
}
}
#if defined(STM32L1XX_MD) || defined(STM32F2XX) || defined(STM32F4XX)
SYSCFG->EXTICR[0] = extp->config->exti[0];
SYSCFG->EXTICR[1] = extp->config->exti[1];
SYSCFG->EXTICR[2] = extp->config->exti[2];
SYSCFG->EXTICR[3] = extp->config->exti[3];
#else /* STM32F1XX */
AFIO->EXTICR[0] = extp->config->exti[0];
AFIO->EXTICR[1] = extp->config->exti[1];
AFIO->EXTICR[2] = extp->config->exti[2];
AFIO->EXTICR[3] = extp->config->exti[3];
#endif /* STM32F1XX */
EXTI->SWIER = 0;
EXTI->RTSR = rtsr;
EXTI->FTSR = ftsr;
EXTI->PR = EXT_CHANNELS_MASK;
EXTI->EMR = emr;
EXTI->IMR = imr;
ext_lld_channel_disable(extp, i);
}
/**
@ -581,14 +555,40 @@ void ext_lld_stop(EXTDriver *extp) {
*/
void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel) {
if (extp->config->channels[channel].cb != NULL)
EXTI->IMR |= (1 << channel);
else
EXTI->EMR |= (1 << channel);
/* Programming edge registers.*/
if (extp->config->channels[channel].mode & EXT_CH_MODE_RISING_EDGE)
EXTI->RTSR |= (1 << channel);
else
EXTI->RTSR &= ~(1 << channel);
if (extp->config->channels[channel].mode & EXT_CH_MODE_FALLING_EDGE)
EXTI->FTSR |= (1 << channel);
else
EXTI->FTSR &= ~(1 << channel);
/* Programming interrupt and event registers.*/
if (extp->config->channels[channel].cb != NULL) {
EXTI->IMR |= (1 << channel);
EXTI->EMR &= ~(1 << channel);
}
else {
EXTI->EMR |= (1 << channel);
EXTI->IMR &= ~(1 << channel);
}
/* Setting the associated GPIO for external channels.*/
if (channel < 16) {
uint32_t n = channel & 3;
uint32_t mask = 0xF << (channel >> 2);
uint32_t port = ((extp->config->channels[channel].mode &
EXT_MODE_GPIO_MASK) >>
EXT_MODE_GPIO_OFF) << (channel >> 2);
#if defined(STM32L1XX_MD) || defined(STM32F2XX) || defined(STM32F4XX)
SYSCFG->EXTICR[n] = (SYSCFG->EXTICR[n] & mask) | port;
#else /* STM32F1XX */
AFIO->EXTICR[n] = (AFIO->EXTICR[n] & mask) | port;
#endif /* STM32F1XX */
}
}
/**
@ -605,8 +605,6 @@ void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel) {
EXTI->IMR &= ~(1 << channel);
EXTI->EMR &= ~(1 << channel);
EXTI->RTSR &= ~(1 << channel);
EXTI->FTSR &= ~(1 << channel);
EXTI->PR = (1 << channel);
}

39
os/hal/platforms/STM32/ext_lld.h
View File

@ -46,31 +46,20 @@
#define EXT_CHANNELS_MASK ((1 << EXT_MAX_CHANNELS) - 1)
/**
* @name EXTI configuration helpers
* @name STM32-specific EXT channel modes
* @{
*/
/**
* @brief EXTI-GPIO association macro.
* @details Helper macro to associate a GPIO to each of the Mx EXTI inputs.
*/
#define EXT_MODE_EXTI(m0, m1, m2, m3, m4, m5, m6, m7, \
m8, m9, m10, m11, m12, m13, m14, m15) \
{ \
((m0) << 0) | ((m1) << 4) | ((m2) << 8) | ((m3) << 12), \
((m4) << 0) | ((m5) << 4) | ((m6) << 8) | ((m7) << 12), \
((m8) << 0) | ((m9) << 4) | ((m10) << 8) | ((m11) << 12), \
((m12) << 0) | ((m13) << 4) | ((m14) << 8) | ((m15) << 12) \
}
#define EXT_MODE_GPIOA 0 /**< @brief GPIOA identifier. */
#define EXT_MODE_GPIOB 1 /**< @brief GPIOB identifier. */
#define EXT_MODE_GPIOC 2 /**< @brief GPIOC identifier. */
#define EXT_MODE_GPIOD 3 /**< @brief GPIOD identifier. */
#define EXT_MODE_GPIOE 4 /**< @brief GPIOE identifier. */
#define EXT_MODE_GPIOF 5 /**< @brief GPIOF identifier. */
#define EXT_MODE_GPIOG 6 /**< @brief GPIOG identifier. */
#define EXT_MODE_GPIOH 7 /**< @brief GPIOH identifier. */
#define EXT_MODE_GPIOI 8 /**< @brief GPIOI identifier. */
#define EXT_MODE_GPIO_MASK 0xF0 /**< @bried Port field mask. */
#define EXT_MODE_GPIO_OFF 4 /**< @bried Port field offset. */
#define EXT_MODE_GPIOA 0x00 /**< @brief GPIOA identifier. */
#define EXT_MODE_GPIOB 0x10 /**< @brief GPIOB identifier. */
#define EXT_MODE_GPIOC 0x20 /**< @brief GPIOC identifier. */
#define EXT_MODE_GPIOD 0x30 /**< @brief GPIOD identifier. */
#define EXT_MODE_GPIOE 0x40 /**< @brief GPIOE identifier. */
#define EXT_MODE_GPIOF 0x50 /**< @brief GPIOF identifier. */
#define EXT_MODE_GPIOG 0x60 /**< @brief GPIOG identifier. */
#define EXT_MODE_GPIOH 0x70 /**< @brief GPIOH identifier. */
#define EXT_MODE_GPIOI 0x80 /**< @brief GPIOI identifier. */
/** @} */
/*===========================================================================*/
@ -228,10 +217,6 @@ typedef struct {
*/
EXTChannelConfig channels[EXT_MAX_CHANNELS];
/* End of the mandatory fields.*/
/**
* @brief Initialization values for EXTICRx registers.
*/
uint16_t exti[4];
} EXTConfig;
/**

59
os/hal/src/ext.c
View File

@ -120,6 +120,7 @@ void extStop(EXTDriver *extp) {
/**
* @brief Enables an EXT channel.
* @pre The channel must not be in @p EXT_CH_MODE_DISABLED mode.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be enabled
@ -128,13 +129,13 @@ void extStop(EXTDriver *extp) {
*/
void extChannelEnable(EXTDriver *extp, expchannel_t channel) {
chDbgCheck((extp != NULL) &&
(channel < EXT_MAX_CHANNELS) &&
(extp->config->channels[channel].mode != EXT_CH_MODE_DISABLED),
chDbgCheck((extp != NULL) && (channel < EXT_MAX_CHANNELS),
"extChannelEnable");
chSysLock();
chDbgAssert(extp->state == EXT_ACTIVE,
chDbgAssert((extp->state == EXT_ACTIVE) &&
((extp->config->channels[channel].mode &
EXT_CH_MODE_EDGES_MASK) != EXT_CH_MODE_DISABLED),
"extChannelEnable(), #1", "invalid state");
extChannelEnableI(extp, channel);
chSysUnlock();
@ -142,6 +143,7 @@ void extChannelEnable(EXTDriver *extp, expchannel_t channel) {
/**
* @brief Disables an EXT channel.
* @pre The channel must not be in @p EXT_CH_MODE_DISABLED mode.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be disabled
@ -150,18 +152,59 @@ void extChannelEnable(EXTDriver *extp, expchannel_t channel) {
*/
void extChannelDisable(EXTDriver *extp, expchannel_t channel) {
chDbgCheck((extp != NULL) &&
(channel < EXT_MAX_CHANNELS) &&
(extp->config->channels[channel].mode != EXT_CH_MODE_DISABLED),
chDbgCheck((extp != NULL) && (channel < EXT_MAX_CHANNELS),
"extChannelDisable");
chSysLock();
chDbgAssert(extp->state == EXT_ACTIVE,
chDbgAssert((extp->state == EXT_ACTIVE) &&
((extp->config->channels[channel].mode &
EXT_CH_MODE_EDGES_MASK) != EXT_CH_MODE_DISABLED),
"extChannelDisable(), #1", "invalid state");
extChannelDisableI(extp, channel);
chSysUnlock();
}
/**
* @brief Changes the operation mode of a channel.
* @note This function attempts to write over the current configuration
* structure that must have been not declared constant. This
* violates the @p const qualifier in @p extStart() but it is
* intentional.
* @note This function cannot be used if the configuration structure is
* declared @p const.
* @note The effect of this function on constant configuration structures
* is not defined.
*
* @param[in] extp pointer to the @p EXTDriver object
* @param[in] channel channel to be changed
* @param[in] extcp new configuration for the channel
*
* @iclass
*/
void extSetChannelModeI(EXTDriver *extp,
expchannel_t channel,
const EXTChannelConfig *extcp) {
EXTChannelConfig *oldcp;
chDbgCheck((extp != NULL) && (channel < EXT_MAX_CHANNELS) &&
(extcp != NULL), "extSetChannelModeI");
/* Note that here the access is enforced as non-const, known access
violation.*/
oldcp = (EXTChannelConfig *)&extp->config->channels[channel];
chSysLock();
chDbgAssert(extp->state == EXT_ACTIVE,
"extSetChannelModeI(), #1", "invalid state");
/* Overwiting the old channels configuration then the channel is reconfigured
by the low level driver.*/
*oldcp = *extcp;
ext_lld_channel_enable(extp, channel);
chSysUnlock();
}
#endif /* HAL_USE_EXT */
/** @} */

3
readme.txt
View File

@ -113,6 +113,9 @@
3484947)(backported to 2.4.1).
- FIX: Fixed various minor documentation errors (bug 3484942)(backported
to 2.4.1).
- NEW: EXT driver improved, now it is possible to reprogram channels at
runtime without necessarily specifying a new configuration.
TODO: Update AT91SAM7 EXT driver.
- NEW: Integrated FatFS 0.9, now the FatFS integration files are centralized
under ./os/various/fatfs_bindings and shared among all demos. The FatFS
file ffconf.h is now application-specific like all the other configuration

24
testhal/STM32F1xx/EXT/main.c
View File

@ -51,7 +51,7 @@ static void extcb2(EXTDriver *extp, expchannel_t channel) {
static const EXTConfig extcfg = {
{
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART, extcb1},
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART | EXT_MODE_GPIOA, extcb1},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
@ -63,27 +63,11 @@ static const EXTConfig extcfg = {
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_RISING_EDGE | EXT_CH_MODE_AUTOSTART, extcb2},
{EXT_CH_MODE_RISING_EDGE | EXT_CH_MODE_AUTOSTART | EXT_MODE_GPIOC, extcb2},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
},
EXT_MODE_EXTI(EXT_MODE_GPIOA,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
EXT_MODE_GPIOC,
0,
0,
0)
{EXT_CH_MODE_DISABLED, NULL}
}
};
/*

7
testhal/STM32F4xx/EXT/main.c
View File

@ -46,7 +46,7 @@ static void extcb1(EXTDriver *extp, expchannel_t channel) {
static const EXTConfig extcfg = {
{
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART, extcb1},
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART | EXT_MODE_GPIOA, extcb1},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
@ -69,10 +69,7 @@ static const EXTConfig extcfg = {
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL}
},
EXT_MODE_EXTI(EXT_MODE_GPIOA, /* Button.*/
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0)
}
};
/*

7
testhal/STM32L1xx/EXT/main.c
View File

@ -44,7 +44,7 @@ static void extcb1(EXTDriver *extp, expchannel_t channel) {
static const EXTConfig extcfg = {
{
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART, extcb1},
{EXT_CH_MODE_BOTH_EDGES | EXT_CH_MODE_AUTOSTART | EXT_MODE_GPIOA, extcb1},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
@ -67,10 +67,7 @@ static const EXTConfig extcfg = {
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL},
{EXT_CH_MODE_DISABLED, NULL}
},
EXT_MODE_EXTI(EXT_MODE_GPIOA, /* Button.*/
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0)
}
};
/*