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ChibiOS
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* remove the SerialConfig pointer from the SerialDriver structure. This is now simply passed through from sdStart() to sd_lld_start() 

* implementation for AT91SAM7 port provided - others will need to be updated

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1875 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
liamstask 2010-04-19 15:29:44 +00:00
parent 09126fe34f
commit c2ba7ebf46
5 changed files with 17 additions and 20 deletions
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18
os/hal/platforms/AT91SAM7/serial_lld.c
View File

@ -81,7 +81,7 @@ static const SerialConfig default_config = {
*
* @param[in] sdp communication channel associated to the USART
*/
static void usart_init(SerialDriver *sdp) {
static void usart_init(SerialDriver *sdp, const SerialConfig *config) {
AT91PS_USART u = sdp->usart;
/* Disables IRQ sources and stop operations.*/
@ -89,11 +89,11 @@ static void usart_init(SerialDriver *sdp) {
u->US_CR = AT91C_US_RSTRX | AT91C_US_RSTTX | AT91C_US_RSTSTA;
/* New parameters setup.*/
if (sdp->config->sc_mr & AT91C_US_OVER)
u->US_BRGR = MCK / (sdp->config->sc_speed * 8);
if (config->sc_mr & AT91C_US_OVER)
u->US_BRGR = MCK / (config->sc_speed * 8);
else
u->US_BRGR = MCK / (sdp->config->sc_speed * 16);
u->US_MR = sdp->config->sc_mr;
u->US_BRGR = MCK / (config->sc_speed * 16);
u->US_MR = config->sc_mr;
u->US_RTOR = 0;
u->US_TTGR = 0;
@ -254,10 +254,10 @@ void sd_lld_init(void) {
*
* @param[in] sdp pointer to a @p SerialDriver object
*/
void sd_lld_start(SerialDriver *sdp) {
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config) {
if (sdp->config == NULL)
sdp->config = &default_config;
if (config == NULL)
config = &default_config;
if (sdp->state == SD_STOP) {
#if USE_SAM7_USART0
@ -277,7 +277,7 @@ void sd_lld_start(SerialDriver *sdp) {
}
#endif
}
usart_init(sdp);
usart_init(sdp, config);
}
/**

6
os/hal/platforms/AT91SAM7/serial_lld.h
View File

@ -90,10 +90,12 @@ typedef uint32_t sdflags_t;
typedef struct {
/**
* @brief Bit rate.
* @details This is written to the US_BRGR register of the appropriate AT91S_USART
*/
uint32_t sc_speed;
/**
* @brief Initialization value for the MR register.
* @details This is written to the US_MR register of the appropriate AT91S_USART
*/
uint32_t sc_mr;
} SerialConfig;
@ -105,8 +107,6 @@ typedef struct {
_base_asynchronous_channel_data \
/* Driver state.*/ \
sdstate_t state; \
/* Current configuration data.*/ \
const SerialConfig *config; \
/* Input queue.*/ \
InputQueue iqueue; \
/* Output queue.*/ \
@ -142,7 +142,7 @@ extern SerialDriver SD2;
extern "C" {
#endif
void sd_lld_init(void);
void sd_lld_start(SerialDriver *sdp);
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
void sd_lld_stop(SerialDriver *sdp);
#ifdef __cplusplus
}

3
os/hal/src/serial.c
View File

@ -146,8 +146,7 @@ void sdStart(SerialDriver *sdp, const SerialConfig *config) {
chDbgAssert((sdp->state == SD_STOP) || (sdp->state == SD_READY),
"sdStart(), #1",
"invalid state");
sdp->config = config;
sd_lld_start(sdp);
sd_lld_start(sdp, config);
sdp->state = SD_READY;
chSysUnlock();
}

6
os/hal/templates/serial_lld.c
View File

@ -68,10 +68,10 @@ void sd_lld_init(void) {
*
* @param[in] sdp pointer to a @p SerialDriver object
*/
void sd_lld_start(SerialDriver *sdp) {
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config) {
if (sdp->config == NULL)
sdp->config = &default_config;
if (config == NULL)
config = &default_config;
}

4
os/hal/templates/serial_lld.h
View File

@ -70,8 +70,6 @@ typedef struct {
_base_asynchronous_channel_data \
/* Driver state.*/ \
sdstate_t state; \
/* Current configuration data.*/ \
const SerialConfig *config; \
/* Input queue.*/ \
InputQueue iqueue; \
/* Output queue.*/ \
@ -98,7 +96,7 @@ typedef struct {
extern "C" {
#endif
void sd_lld_init(void);
void sd_lld_start(SerialDriver *sdp);
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
void sd_lld_stop(SerialDriver *sdp);
#ifdef __cplusplus
}