/**
* @brief Configures and activates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_start(EXTDriver *extp) {
int i;
/* Configure all pins as edge sensitive */
#if LPC122x_EXT_USE_EXT0
if (extp == &EXTD0) {
LPC_GPIO0->IS = 0;
ext_lld_exti_irq_enable(EXTI0_IRQ);
}
#endif
#if LPC122x_EXT_USE_EXT1
if (extp == &EXTD1) {
LPC_GPIO1->IS = 0;
ext_lld_exti_irq_enable(EXTI1_IRQ);
}
#endif
#if LPC122x_EXT_USE_EXT2
if (extp == &EXTD2) {
LPC_GPIO2->IS = 0;
ext_lld_exti_irq_enable(EXTI2_IRQ);
}
#endif
/* Configuration of autostart 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
ext_lld_channel_disable(extp, i);
}
/**
* @brief Configures and activates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_start(EXTDriver *extp) {
int i;
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<6);
/* 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
ext_lld_channel_disable(extp, i);
}
/**
* @brief Configures and activates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_start(EXTDriver *extp) {
expchannel_t line;
if (extp->state == EXT_STOP)
osalSysUnlock();
/* Configuration of automatic channels. */
for (line = 0; line < EXT_MAX_CHANNELS; line++) {
if (extp->config->channels[line].mode & EXT_CH_MODE_AUTOSTART)
ext_lld_channel_enable(extp, line);
else
ext_lld_channel_disable(extp, line);
}
}
/**
* @brief Configures and activates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_start(EXTDriver *extp) {
if (extp->state == EXT_STOP)
ext_lld_exti_irq_enable();
/* Configuration of automatic channels.*/
for (expchannel_t channel = 0; channel < EXT_MAX_CHANNELS; channel++) {
uint32_t mode = extp->config->channels[channel].mode;
PORT_TypeDef *port = extp->config->channels[channel].port;
uint32_t pin = extp->config->channels[channel].pin;
/* Initialize the channel map */
#if KINETIS_EXT_PORTA_WIDTH > 0
if (port == PORTA)
porta_channel_map[pin] = channel;
else
#endif
#if KINETIS_EXT_PORTB_WIDTH > 0
if (port == PORTB)
portb_channel_map[pin] = channel;
else
#endif
#if KINETIS_EXT_PORTC_WIDTH > 0
if (port == PORTC)
portc_channel_map[pin] = channel;
else
#endif
#if KINETIS_EXT_PORTD_WIDTH > 0
if (port == PORTD)
portd_channel_map[pin] = channel;
else
#endif
#if KINETIS_EXT_PORTE_WIDTH > 0
if (port == PORTE)
porte_channel_map[pin] = channel;
else
#endif
{}
if (mode & EXT_CH_MODE_AUTOSTART)
ext_lld_channel_enable(extp, channel);
else if (port != NULL)
ext_lld_channel_disable(extp, channel);
}
}
/**
* @brief Configures and activates the EXT peripheral.
*
* @param[in] extp pointer to the @p EXTDriver object
*
* @notapi
*/
void ext_lld_start(EXTDriver *extp)
{
uint8_t i;
if (extp->state == EXT_STOP) {
ext_lld_irq_enable();
}
/* 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 {
ext_lld_channel_disable(extp, i);
}
}
}
/**
* @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");
chDbgAssert(extp->state == EXT_ACTIVE,
"extSetChannelModeI(), #1", "invalid state");
/* Note that here the access is enforced as non-const, known access
violation.*/
oldcp = (EXTChannelConfig *)&extp->config->channels[channel];
/* Overwiting the old channels configuration then the channel is reconfigured
by the low level driver.*/
*oldcp = *extcp;
ext_lld_channel_enable(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.
* @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;
osalDbgCheck((extp != NULL) &&
(channel < (expchannel_t)EXT_MAX_CHANNELS) &&
(extcp != NULL));
osalDbgAssert(extp->state == EXT_ACTIVE, "invalid state");
/* Note that here the access is enforced as non-const, known access
violation.*/
/*lint -save -e9005 [11.8] Known issue, the driver needs rework here.*/
oldcp = (EXTChannelConfig *)&extp->config->channels[channel];
/*lint -restore*/
/* Overwriting the old channels configuration then the channel is
reconfigured by the low level driver.*/
*oldcp = *extcp;
ext_lld_channel_enable(extp, channel);
}
