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drivers: ethernet: w5500: keep thread blocking in command read-back

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add changes for command read-back and change from k_sleep to k_busy_wait
which will allow other threads to wakeup

Signed-off-by: Hari Haran Babu <hariharan@linumiz.com>
Signed-off-by: Marcel Graber <marcel@clever.design>
This commit is contained in:
Hari Haran Babu 2022-06-02 11:33:14 +05:30 • committed by Carles Cufí
commit d8e3affe7b
2 changed files with 9 additions and 8 deletions
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15
drivers/ethernet/eth_w5500.c
View file

@ -160,18 +160,17 @@ static int w5500_command(const struct device *dev, uint8_t cmd)
uint64_t end = sys_clock_timeout_end_calc(K_MSEC(100)); uint64_t end = sys_clock_timeout_end_calc(K_MSEC(100));
w5500_spi_write(dev, W5500_S0_CR, &cmd, 1); w5500_spi_write(dev, W5500_S0_CR, &cmd, 1);
do { while (1) {
w5500_spi_read(dev, W5500_S0_CR, &reg, 1);
if (!reg) {
break;
}
int64_t remaining = end - sys_clock_tick_get(); int64_t remaining = end - sys_clock_tick_get();
if (remaining <= 0) { if (remaining <= 0) {
return -EIO; return -EIO;
} }
k_busy_wait(W5500_PHY_ACCESS_DELAY);
w5500_spi_read(dev, W5500_S0_CR, &reg, 1); }
k_msleep(1);
} while (reg != 0);
return 0; return 0;
} }

2
drivers/ethernet/eth_w5500_priv.h
View file

@ -76,6 +76,8 @@
#define W5500_Sn_RX_MEM_START 0x30000 #define W5500_Sn_RX_MEM_START 0x30000
#define W5500_RX_MEM_SIZE 0x04000 #define W5500_RX_MEM_SIZE 0x04000
/* Delay for PHY write/read operations (25.6 us) */
#define W5500_PHY_ACCESS_DELAY 26U
struct w5500_config { struct w5500_config {
struct spi_dt_spec spi; struct spi_dt_spec spi;
struct gpio_dt_spec interrupt; struct gpio_dt_spec interrupt;