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it8xxx2: espi: add support for CONFIG_ESPI_OOB_CHANNEL_RX_ASYNC

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This makes the driver to support the configuration option.

Signed-off-by: Dino Li <Dino.Li@ite.com.tw>
This commit is contained in:
Dino Li 2022-03-07 14:11:22 +08:00 • committed by Carles Cufí
commit a39f640b54
1 changed files with 20 additions and 3 deletions
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23
drivers/espi/espi_it8xxx2.c
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@ -992,14 +992,12 @@ static int espi_it8xxx2_receive_oob(const struct device *dev,
struct espi_oob_packet *pckt) struct espi_oob_packet *pckt)
{ {
const struct espi_it8xxx2_config *const config = dev->config; const struct espi_it8xxx2_config *const config = dev->config;
struct espi_it8xxx2_data *const data = dev->data;
struct espi_slave_regs *const slave_reg = struct espi_slave_regs *const slave_reg =
(struct espi_slave_regs *)config->base_espi_slave; (struct espi_slave_regs *)config->base_espi_slave;
struct espi_queue0_regs *const queue0_reg = struct espi_queue0_regs *const queue0_reg =
(struct espi_queue0_regs *)config->base_espi_queue0; (struct espi_queue0_regs *)config->base_espi_queue0;
struct espi_oob_msg_packet *oob_pckt = struct espi_oob_msg_packet *oob_pckt =
(struct espi_oob_msg_packet *)pckt->buf; (struct espi_oob_msg_packet *)pckt->buf;
int ret;
uint8_t oob_len; uint8_t oob_len;
if (!(slave_reg->CH_OOB_CAPCFG3 & IT8XXX2_ESPI_OOB_READY_MASK)) { if (!(slave_reg->CH_OOB_CAPCFG3 & IT8XXX2_ESPI_OOB_READY_MASK)) {
@ -1007,12 +1005,17 @@ static int espi_it8xxx2_receive_oob(const struct device *dev,
return -EIO; return -EIO;
} }
#ifndef CONFIG_ESPI_OOB_CHANNEL_RX_ASYNC
struct espi_it8xxx2_data *const data = dev->data;
int ret;
/* Wait until receive OOB message or timeout */ /* Wait until receive OOB message or timeout */
ret = k_sem_take(&data->oob_upstream_go, K_MSEC(ESPI_OOB_TIMEOUT_MS)); ret = k_sem_take(&data->oob_upstream_go, K_MSEC(ESPI_OOB_TIMEOUT_MS));
if (ret == -EAGAIN) { if (ret == -EAGAIN) {
LOG_ERR("%s: Timeout", __func__); LOG_ERR("%s: Timeout", __func__);
return -ETIMEDOUT; return -ETIMEDOUT;
} }
#endif
/* Get length */ /* Get length */
oob_len = (slave_reg->ESOCTRL4 & IT8XXX2_ESPI_PUT_OOB_LEN_MASK); oob_len = (slave_reg->ESOCTRL4 & IT8XXX2_ESPI_PUT_OOB_LEN_MASK);
@ -1041,11 +1044,14 @@ static int espi_it8xxx2_receive_oob(const struct device *dev,
static void espi_it8xxx2_oob_init(const struct device *dev) static void espi_it8xxx2_oob_init(const struct device *dev)
{ {
const struct espi_it8xxx2_config *const config = dev->config; const struct espi_it8xxx2_config *const config = dev->config;
struct espi_it8xxx2_data *const data = dev->data;
struct espi_slave_regs *const slave_reg = struct espi_slave_regs *const slave_reg =
(struct espi_slave_regs *)config->base_espi_slave; (struct espi_slave_regs *)config->base_espi_slave;
#ifndef CONFIG_ESPI_OOB_CHANNEL_RX_ASYNC
struct espi_it8xxx2_data *const data = dev->data;
k_sem_init(&data->oob_upstream_go, 0, 1); k_sem_init(&data->oob_upstream_go, 0, 1);
#endif
/* Upstream interrupt enable */ /* Upstream interrupt enable */
slave_reg->ESUCTRL0 |= IT8XXX2_ESPI_UPSTREAM_INTERRUPT_ENABLE; slave_reg->ESUCTRL0 |= IT8XXX2_ESPI_UPSTREAM_INTERRUPT_ENABLE;
@ -1655,11 +1661,22 @@ static void espi_it8xxx2_put_oob_status_isr(const struct device *dev)
struct espi_it8xxx2_data *const data = dev->data; struct espi_it8xxx2_data *const data = dev->data;
struct espi_slave_regs *const slave_reg = struct espi_slave_regs *const slave_reg =
(struct espi_slave_regs *)config->base_espi_slave; (struct espi_slave_regs *)config->base_espi_slave;
#ifdef CONFIG_ESPI_OOB_CHANNEL_RX_ASYNC
struct espi_event evt = { .evt_type = ESPI_BUS_EVENT_OOB_RECEIVED,
.evt_details = 0,
.evt_data = 0 };
#endif
/* Write-1 to clear this bit for the next coming posted transaction. */ /* Write-1 to clear this bit for the next coming posted transaction. */
slave_reg->ESOCTRL0 |= IT8XXX2_ESPI_PUT_OOB_STATUS; slave_reg->ESOCTRL0 |= IT8XXX2_ESPI_PUT_OOB_STATUS;
#ifndef CONFIG_ESPI_OOB_CHANNEL_RX_ASYNC
k_sem_give(&data->oob_upstream_go); k_sem_give(&data->oob_upstream_go);
#else
/* Additional detail is length field of PUT_OOB message packet. */
evt.evt_details = (slave_reg->ESOCTRL4 & IT8XXX2_ESPI_PUT_OOB_LEN_MASK);
espi_send_callbacks(&data->callbacks, dev, evt);
#endif
} }
#endif #endif