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drivers: wireless: Improve packet receiving performance in gs2200m.c 

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa 2020-04-30 14:03:42 +09:00 committed by Alin Jerpelea
parent a5e4f0435d
commit 350ffb20ad
1 changed files with 13 additions and 24 deletions
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37
drivers/wireless/gs2200m.c
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@ -97,6 +97,8 @@
#define RD_RESP_NOK 0x14
#define LED_GPIO 30
#define HAL_TIMEOUT 5000000 /* in us */
#define WR_MAX_RETRY 100
/****************************************************************************
* Private Data Types
@ -827,15 +829,8 @@ static void _write_data(FAR struct gs2200m_dev_s *dev,
FAR uint8_t *buf,
FAR uint16_t len)
{
int i;
SPI_SELECT(dev->spi, SPIDEV_WIRELESS(0), true);
for (i = 0; i < len; i++, buf++)
{
SPI_SEND(dev->spi, *buf);
}
SPI_SNDBLOCK(dev->spi, buf, len);
SPI_SELECT(dev->spi, SPIDEV_WIRELESS(0), false);
}
@ -848,18 +843,12 @@ static void _read_data(FAR struct gs2200m_dev_s *dev,
FAR uint8_t *buff,
FAR uint16_t len)
{
int i;
uint8_t req = 0xf5; /* idle character */
memset(buff, 0, len);
SPI_SELECT(dev->spi, SPIDEV_WIRELESS(0), true);
for (i = 0; i < len; i++, buff++)
{
SPI_EXCHANGE(dev->spi, &req, buff, 1);
}
SPI_EXCHANGE(dev->spi, &req, buff, len);
SPI_SELECT(dev->spi, SPIDEV_WIRELESS(0), false);
}
@ -889,15 +878,13 @@ retry:
while (!dev->lower->dready(NULL))
{
/* TODO: timeout */
nxsig_usleep(10);
}
/* NOTE: wait 100us
* workaround to avoid really receiving an invalid frame response
/* NOTE: busy wait 50us
* workaround to avoid an invalid frame response
*/
nxsig_usleep(100);
up_udelay(50);
/* Read frame response */
@ -999,7 +986,7 @@ retry:
wlwarn("*** warning: WR_RESP_NOK received.. retrying. (n=%d) \n", n);
nxsig_usleep(10 * 1000);
if (9 < n)
if (WR_MAX_RETRY < n)
{
return SPI_TIMEOUT;
}
@ -1039,17 +1026,19 @@ enum spi_status_e gs2200m_hal_read(FAR struct gs2200m_dev_s *dev,
/* NOTE: need to wait for data ready even if we use irq */
for (i = 0; i < 500; i++)
for (i = 0; i < HAL_TIMEOUT; i++)
{
if (dev->lower->dready(NULL))
{
break;
}
nxsig_usleep(10 * 1000);
/* Busy wait 1us */
up_udelay(1);
}
if (500 == i)
if (HAL_TIMEOUT == i)
{
wlerr("***** error: timeout! \n");
r = SPI_TIMEOUT;