michaelh/zephyr
1
0
Fork 0
Code Releases Activity

drivers/spi: Apply syntax rules on DW drivers

Browse source 
One liners if/for/while statements still need {}
(and line break are cheap for clarity).

Aligning parameters properly.

Also, removing __func__ usage from SYS_LOG_* as these macros already put
it internally.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This commit is contained in:
Tomasz Bursztyka 2017-04-24 16:29:37 +02:00 • committed by Anas Nashif
commit 18991a2781
2 changed files with 21 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

29
drivers/spi/spi_dw.c
View file

@ -69,14 +69,17 @@ static void completed(struct device *dev, int error)
* 3. spi_read - need rx_buf_len zero.
*/
if (spi->tx_buf && spi->rx_buf) {
if (!spi->last_tx || spi->rx_buf_len)
if (!spi->last_tx || spi->rx_buf_len) {
return;
}
} else if (spi->tx_buf) {
if (!spi->last_tx)
if (!spi->last_tx) {
return;
}
} else { /* or, spi->rx_buf!=0 */
if (spi->rx_buf_len)
if (spi->rx_buf_len) {
return;
}
}
out:
@ -94,7 +97,7 @@ out:
_spi_control_cs(dev, 0);
SYS_LOG_DBG("SPI transaction completed %s error",
error ? "with" : "without");
error ? "with" : "without");
k_sem_give(&spi->device_sync_sem);
}
@ -116,10 +119,12 @@ static void push_data(struct device *dev)
} else {
f_tx = DW_SPI_FIFO_DEPTH - read_txflr(info->regs);
}
if (f_tx && (spi->tx_buf_len == 0)) {
/* room in fifo, yet nothing to send */
spi->last_tx = 1; /* setting last_tx indicates TX is done */
}
while (f_tx) {
if (spi->tx_buf && spi->tx_buf_len > 0) {
switch (spi->dfs) {
@ -218,7 +223,7 @@ static inline bool _spi_dw_is_controller_ready(struct device *dev)
}
static int spi_dw_configure(struct device *dev,
struct spi_config *config)
struct spi_config *config)
{
const struct spi_dw_config *info = dev->config->config_info;
struct spi_dw_data *spi = dev->driver_data;
@ -226,11 +231,11 @@ static int spi_dw_configure(struct device *dev,
u32_t ctrlr0 = 0;
u32_t mode;
SYS_LOG_DBG("%s: %p (0x%x), %p", __func__, dev, info->regs, config);
SYS_LOG_DBG("%p (0x%x), %p", dev, info->regs, config);
/* Check status */
if (!_spi_dw_is_controller_ready(dev)) {
SYS_LOG_DBG("%s: Controller is busy", __func__);
SYS_LOG_DBG("Controller is busy");
return -EBUSY;
}
@ -280,7 +285,7 @@ static int spi_dw_slave_select(struct device *dev, u32_t slave)
{
struct spi_dw_data *spi = dev->driver_data;
SYS_LOG_DBG("%s: %p %d", __func__, dev, slave);
SYS_LOG_DBG("%p %d", dev, slave);
if (slave == 0 || slave > 16) {
return -EINVAL;
@ -300,12 +305,12 @@ static int spi_dw_transceive(struct device *dev,
u32_t rx_thsld = DW_SPI_RXFTLR_DFLT;
u32_t imask;
SYS_LOG_DBG("%s: %p, %p, %u, %p, %u",
__func__, dev, tx_buf, tx_buf_len, rx_buf, rx_buf_len);
SYS_LOG_DBG("%p, %p, %u, %p, %u",
dev, tx_buf, tx_buf_len, rx_buf, rx_buf_len);
/* Check status */
if (!_spi_dw_is_controller_ready(dev)) {
SYS_LOG_DBG("%s: Controller is busy", __func__);
SYS_LOG_DBG("Controller is busy");
return -EBUSY;
}
@ -371,7 +376,7 @@ void spi_dw_isr(void *arg)
int_status = read_isr(info->regs);
SYS_LOG_DBG("SPI int_status 0x%x - (tx: %d, rx: %d)",
int_status, read_txflr(info->regs), read_rxflr(info->regs));
int_status, read_txflr(info->regs), read_rxflr(info->regs));
if (int_status & DW_SPI_ISR_ERRORS_MASK) {
error = 1;

4
include/spi.h
View file

@ -66,6 +66,10 @@ struct spi_config {
u32_t max_sys_freq;
};
struct spi_buf {
};
/**
* @typedef spi_api_configure
* @brief Callback API upon configuring the const controller