*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
ao_spi_run(id, 3, len);
}
+void
+ao_spi_start_bytes(uint8_t spi_index)
+{
+ uint8_t id = AO_SPI_INDEX(spi_index);
+ struct stm_spi *stm_spi = ao_spi_stm_info[id].stm_spi;
+
+ stm_spi->cr2 = ((0 << STM_SPI_CR2_TXEIE) |
+ (0 << STM_SPI_CR2_RXNEIE) |
+ (0 << STM_SPI_CR2_ERRIE) |
+ (0 << STM_SPI_CR2_SSOE) |
+ (0 << STM_SPI_CR2_TXDMAEN) |
+ (0 << STM_SPI_CR2_RXDMAEN));
+ validate_spi(stm_spi, 5, 0xffff);
+}
+
+void
+ao_spi_stop_bytes(uint8_t spi_index)
+{
+ uint8_t id = AO_SPI_INDEX(spi_index);
+ struct stm_spi *stm_spi = ao_spi_stm_info[id].stm_spi;
+
+ while ((stm_spi->sr & (1 << STM_SPI_SR_TXE)) == 0)
+ ;
+ while (stm_spi->sr & (1 << STM_SPI_SR_BSY))
+ ;
+ /* Clear the OVR flag */
+ (void) stm_spi->dr;
+ (void) stm_spi->sr;
+ validate_spi(stm_spi, 6, 0xffff);
+ stm_spi->cr2 = 0;
+}
+
void
ao_spi_send_sync(const void *block, uint16_t len, uint8_t spi_index)
{
{
/* Disable current config
*/
- switch (AO_SPI_INDEX(spi_index)) {
- case STM_SPI_INDEX(1):
- switch (spi_index) {
- case AO_SPI_1_PA5_PA6_PA7:
- stm_gpio_set(&stm_gpioa, 5, 1);
- stm_moder_set(&stm_gpioa, 5, STM_MODER_OUTPUT);
- stm_moder_set(&stm_gpioa, 6, STM_MODER_INPUT);
- stm_moder_set(&stm_gpioa, 7, STM_MODER_OUTPUT);
- break;
- case AO_SPI_1_PB3_PB4_PB5:
- stm_gpio_set(&stm_gpiob, 3, 1);
- stm_moder_set(&stm_gpiob, 3, STM_MODER_OUTPUT);
- stm_moder_set(&stm_gpiob, 4, STM_MODER_INPUT);
- stm_moder_set(&stm_gpiob, 5, STM_MODER_OUTPUT);
- break;
- case AO_SPI_1_PE13_PE14_PE15:
- stm_gpio_set(&stm_gpioe, 13, 1);
- stm_moder_set(&stm_gpioe, 13, STM_MODER_OUTPUT);
- stm_moder_set(&stm_gpioe, 14, STM_MODER_INPUT);
- stm_moder_set(&stm_gpioe, 15, STM_MODER_OUTPUT);
- break;
- }
+ switch (spi_index) {
+ case AO_SPI_1_PA5_PA6_PA7:
+ stm_gpio_set(&stm_gpioa, 5, 1);
+ stm_moder_set(&stm_gpioa, 5, STM_MODER_OUTPUT);
+ stm_moder_set(&stm_gpioa, 6, STM_MODER_INPUT);
+ stm_moder_set(&stm_gpioa, 7, STM_MODER_OUTPUT);
break;
- case STM_SPI_INDEX(2):
- switch (spi_index) {
- case AO_SPI_2_PB13_PB14_PB15:
- stm_gpio_set(&stm_gpiob, 13, 1);
- stm_moder_set(&stm_gpiob, 13, STM_MODER_OUTPUT);
- stm_moder_set(&stm_gpiob, 14, STM_MODER_INPUT);
- stm_moder_set(&stm_gpiob, 15, STM_MODER_OUTPUT);
- break;
- case AO_SPI_2_PD1_PD3_PD4:
- stm_gpio_set(&stm_gpiod, 1, 1);
- stm_moder_set(&stm_gpiod, 1, STM_MODER_OUTPUT);
- stm_moder_set(&stm_gpiod, 3, STM_MODER_INPUT);
- stm_moder_set(&stm_gpiod, 4, STM_MODER_OUTPUT);
- break;
- }
+ case AO_SPI_1_PB3_PB4_PB5:
+ stm_gpio_set(&stm_gpiob, 3, 1);
+ stm_moder_set(&stm_gpiob, 3, STM_MODER_OUTPUT);
+ stm_moder_set(&stm_gpiob, 4, STM_MODER_INPUT);
+ stm_moder_set(&stm_gpiob, 5, STM_MODER_OUTPUT);
+ break;
+ case AO_SPI_1_PE13_PE14_PE15:
+ stm_gpio_set(&stm_gpioe, 13, 1);
+ stm_moder_set(&stm_gpioe, 13, STM_MODER_OUTPUT);
+ stm_moder_set(&stm_gpioe, 14, STM_MODER_INPUT);
+ stm_moder_set(&stm_gpioe, 15, STM_MODER_OUTPUT);
+ break;
+ case AO_SPI_2_PB13_PB14_PB15:
+ stm_gpio_set(&stm_gpiob, 13, 1);
+ stm_moder_set(&stm_gpiob, 13, STM_MODER_OUTPUT);
+ stm_moder_set(&stm_gpiob, 14, STM_MODER_INPUT);
+ stm_moder_set(&stm_gpiob, 15, STM_MODER_OUTPUT);
+ break;
+ case AO_SPI_2_PD1_PD3_PD4:
+ stm_gpio_set(&stm_gpiod, 1, 1);
+ stm_moder_set(&stm_gpiod, 1, STM_MODER_OUTPUT);
+ stm_moder_set(&stm_gpiod, 3, STM_MODER_INPUT);
+ stm_moder_set(&stm_gpiod, 4, STM_MODER_OUTPUT);
break;
}
}
static void
ao_spi_enable_index(uint8_t spi_index)
{
- switch (AO_SPI_INDEX(spi_index)) {
- case STM_SPI_INDEX(1):
- switch (spi_index) {
- case AO_SPI_1_PA5_PA6_PA7:
- stm_afr_set(&stm_gpioa, 5, STM_AFR_AF5);
- stm_afr_set(&stm_gpioa, 6, STM_AFR_AF5);
- stm_afr_set(&stm_gpioa, 7, STM_AFR_AF5);
- break;
- case AO_SPI_1_PB3_PB4_PB5:
- stm_afr_set(&stm_gpiob, 3, STM_AFR_AF5);
- stm_afr_set(&stm_gpiob, 4, STM_AFR_AF5);
- stm_afr_set(&stm_gpiob, 5, STM_AFR_AF5);
- break;
- case AO_SPI_1_PE13_PE14_PE15:
- stm_afr_set(&stm_gpioe, 13, STM_AFR_AF5);
- stm_afr_set(&stm_gpioe, 14, STM_AFR_AF5);
- stm_afr_set(&stm_gpioe, 15, STM_AFR_AF5);
- break;
- }
+ /* Enable new config
+ */
+ switch (spi_index) {
+ case AO_SPI_1_PA5_PA6_PA7:
+ stm_afr_set(&stm_gpioa, 5, STM_AFR_AF5);
+ stm_afr_set(&stm_gpioa, 6, STM_AFR_AF5);
+ stm_afr_set(&stm_gpioa, 7, STM_AFR_AF5);
break;
- case STM_SPI_INDEX(2):
- switch (spi_index) {
- case AO_SPI_2_PB13_PB14_PB15:
- stm_afr_set(&stm_gpiob, 13, STM_AFR_AF5);
- stm_afr_set(&stm_gpiob, 14, STM_AFR_AF5);
- stm_afr_set(&stm_gpiob, 15, STM_AFR_AF5);
- break;
- case AO_SPI_2_PD1_PD3_PD4:
- stm_afr_set(&stm_gpiod, 1, STM_AFR_AF5);
- stm_afr_set(&stm_gpiod, 3, STM_AFR_AF5);
- stm_afr_set(&stm_gpiod, 4, STM_AFR_AF5);
- break;
- }
+ case AO_SPI_1_PB3_PB4_PB5:
+ stm_afr_set(&stm_gpiob, 3, STM_AFR_AF5);
+ stm_afr_set(&stm_gpiob, 4, STM_AFR_AF5);
+ stm_afr_set(&stm_gpiob, 5, STM_AFR_AF5);
+ break;
+ case AO_SPI_1_PE13_PE14_PE15:
+ stm_afr_set(&stm_gpioe, 13, STM_AFR_AF5);
+ stm_afr_set(&stm_gpioe, 14, STM_AFR_AF5);
+ stm_afr_set(&stm_gpioe, 15, STM_AFR_AF5);
+ break;
+ case AO_SPI_2_PB13_PB14_PB15:
+ stm_afr_set(&stm_gpiob, 13, STM_AFR_AF5);
+ stm_afr_set(&stm_gpiob, 14, STM_AFR_AF5);
+ stm_afr_set(&stm_gpiob, 15, STM_AFR_AF5);
+ break;
+ case AO_SPI_2_PD1_PD3_PD4:
+ stm_afr_set(&stm_gpiod, 1, STM_AFR_AF5);
+ stm_afr_set(&stm_gpiod, 3, STM_AFR_AF5);
+ stm_afr_set(&stm_gpiod, 4, STM_AFR_AF5);
break;
}
}
projects / fw / altos / blobdiff