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TWAI: Track HW state in HAL

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This commit refactors the TWAI HAL such that it now tracks
the harwdare's state instead of at the driver layer.
Some HAL and LL cleanup was also done.
This commit is contained in:
Darian Leung
2020-07-24 23:21:53 +08:00
parent e70c238be0
commit 90ee294139
9 changed files with 267 additions and 381 deletions
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12
components/driver/include/driver/twai.h
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@@ -40,9 +40,9 @@ extern "C" {
* configured. The other members of the general configuration structure are
* assigned default values.
*/
#define TWAI_GENERAL_CONFIG_DEFAULT(tx_io_num, rx_io_num, op_mode) {.mode = op_mode, .tx_io = tx_io_num, .rx_io = rx_io_num, \
.clkout_io = TWAI_IO_UNUSED, .bus_off_io = TWAI_IO_UNUSED, \
.tx_queue_len = 5, .rx_queue_len = 5, \
#define TWAI_GENERAL_CONFIG_DEFAULT(tx_io_num, rx_io_num, op_mode) {.mode = op_mode, .tx_io = tx_io_num, .rx_io = rx_io_num, \
.clkout_io = TWAI_IO_UNUSED, .bus_off_io = TWAI_IO_UNUSED, \
.tx_queue_len = 5, .rx_queue_len = 5, \
.alerts_enabled = TWAI_ALERT_NONE, .clkout_divider = 0, \
.intr_flags = ESP_INTR_FLAG_LEVEL1}
@@ -168,9 +168,9 @@ esp_err_t twai_driver_uninstall(void);
*
* This function starts the TWAI driver, putting the TWAI driver into the running
* state. This allows the TWAI driver to participate in TWAI bus activities such
* as transmitting/receiving messages. The RX queue is reset in this function,
* clearing any unread messages. This function can only be called when the TWAI
* driver is in the stopped state.
* as transmitting/receiving messages. The TX and RX queue are reset in this function,
* clearing any messages that are unread or pending transmission. This function
* can only be called when the TWAI driver is in the stopped state.
*
* @return
* - ESP_OK: TWAI driver is now running