git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1883 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
parent
75792b3d6a
commit
f843a37153
|
@ -20,6 +20,7 @@
|
|||
/**
|
||||
* @file LPC214x/serial_lld.c
|
||||
* @brief LPC214x low level serial driver code.
|
||||
*
|
||||
* @addtogroup LPC214x_SERIAL
|
||||
* @{
|
||||
*/
|
||||
|
@ -62,16 +63,17 @@ static const SerialConfig default_config = {
|
|||
* @brief UART initialization.
|
||||
*
|
||||
* @param[in] sdp communication channel associated to the UART
|
||||
* @param[in] config the architecture-dependent serial driver configuration
|
||||
*/
|
||||
static void uart_init(SerialDriver *sdp) {
|
||||
static void uart_init(SerialDriver *sdp, const SerialConfig *config) {
|
||||
UART *u = sdp->uart;
|
||||
|
||||
uint32_t div = PCLK / (sdp->config->sc_speed << 4);
|
||||
u->UART_LCR = sdp->config->sc_lcr | LCR_DLAB;
|
||||
uint32_t div = PCLK / (config->sc_speed << 4);
|
||||
u->UART_LCR = config->sc_lcr | LCR_DLAB;
|
||||
u->UART_DLL = div;
|
||||
u->UART_DLM = div >> 8;
|
||||
u->UART_LCR = sdp->config->sc_lcr;
|
||||
u->UART_FCR = FCR_ENABLE | FCR_RXRESET | FCR_TXRESET | sdp->config->sc_fcr;
|
||||
u->UART_LCR = config->sc_lcr;
|
||||
u->UART_FCR = FCR_ENABLE | FCR_RXRESET | FCR_TXRESET | config->sc_fcr;
|
||||
u->UART_ACR = 0;
|
||||
u->UART_FDR = 0x10;
|
||||
u->UART_TER = TER_ENABLE;
|
||||
|
@ -123,10 +125,11 @@ __attribute__((noinline))
|
|||
#endif
|
||||
/**
|
||||
* @brief Common IRQ handler.
|
||||
* @note Tries hard to clear all the pending interrupt sources, we dont 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
|
||||
* @note Tries hard to clear all the pending interrupt sources, we dont want to
|
||||
* go through the whole ISR and have another interrupt soon after.
|
||||
*/
|
||||
static void serve_interrupt(SerialDriver *sdp) {
|
||||
UART *u = sdp->uart;
|
||||
|
@ -257,7 +260,7 @@ CH_IRQ_HANDLER(UART1IrqHandler) {
|
|||
/*===========================================================================*/
|
||||
|
||||
/**
|
||||
* Low level serial driver initialization.
|
||||
* @brief Low level serial driver initialization.
|
||||
*/
|
||||
void sd_lld_init(void) {
|
||||
|
||||
|
@ -277,11 +280,14 @@ void sd_lld_init(void) {
|
|||
* @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.
|
||||
*/
|
||||
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_LPC214x_UART0
|
||||
|
@ -297,7 +303,7 @@ void sd_lld_start(SerialDriver *sdp) {
|
|||
}
|
||||
#endif
|
||||
}
|
||||
uart_init(sdp);
|
||||
uart_init(sdp, config);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
@ -20,6 +20,7 @@
|
|||
/**
|
||||
* @file LPC214x/serial_lld.h
|
||||
* @brief LPC214x low level serial driver header.
|
||||
*
|
||||
* @addtogroup LPC214x_SERIAL
|
||||
* @{
|
||||
*/
|
||||
|
@ -58,8 +59,8 @@
|
|||
/**
|
||||
* @brief FIFO preload parameter.
|
||||
* @details Configuration parameter, this values defines how many bytes are
|
||||
* preloaded in the HW transmit FIFO for each interrupt, the maximum value is
|
||||
* 16 the minimum is 1.
|
||||
* preloaded in the HW transmit FIFO for each interrupt, the maximum
|
||||
* value is 16 the minimum is 1.
|
||||
* @note An high value reduces the number of interrupts generated but can
|
||||
* also increase the worst case interrupt response time because the
|
||||
* preload loops.
|
||||
|
@ -126,8 +127,6 @@ typedef struct {
|
|||
_base_asynchronous_channel_data \
|
||||
/* Driver state.*/ \
|
||||
sdstate_t state; \
|
||||
/* Current configuration data.*/ \
|
||||
const SerialConfig *config; \
|
||||
/* Input queue.*/ \
|
||||
InputQueue iqueue; \
|
||||
/* Output queue.*/ \
|
||||
|
@ -163,7 +162,7 @@ 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
|
||||
}
|
||||
|
|
|
@ -264,18 +264,18 @@ void sd_lld_init(void) {
|
|||
*/
|
||||
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config) {
|
||||
|
||||
if (sdp->config == NULL)
|
||||
sdp->config = &default_config;
|
||||
if (config == NULL)
|
||||
config = &default_config;
|
||||
|
||||
#if USE_MSP430_USART0
|
||||
if (&SD1 == sdp) {
|
||||
usart0_init(sdp->config);
|
||||
usart0_init(config);
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
#if USE_MSP430_USART1
|
||||
if (&SD2 == sdp) {
|
||||
usart1_init(sdp->config);
|
||||
usart1_init(config);
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
|
|
Loading…
Reference in New Issue