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wimax/i2400m/sdio: Implement I2400M_RT_BUS reset type 

This reset type causes the WiMAX function to be disabled and
re-enabled, which will force the WiMAX device to reset and enter boot
mode.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
This commit is contained in:
Dirk Brandewie 2009-05-12 07:54:00 -07:00 committed by Inaky Perez-Gonzalez
parent ead6823991
commit 10b1de6b77
2 changed files with 19 additions and 3 deletions
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2
drivers/net/wimax/i2400m/i2400m-sdio.h
View File

@ -78,6 +78,8 @@ enum {
/* The number of ticks to wait for the device to signal that
* it is ready */
I2400MS_INIT_SLEEP_INTERVAL = 10,
/* How long to wait for the device to settle after reset */
I2400MS_SETTLE_TIME = 40,
};

20
drivers/net/wimax/i2400m/sdio.c
View File

@ -255,7 +255,7 @@ error_kzalloc:
static
int i2400ms_bus_reset(struct i2400m *i2400m, enum i2400m_reset_type rt)
{
int result;
int result = 0;
struct i2400ms *i2400ms =
container_of(i2400m, struct i2400ms, i2400m);
struct device *dev = i2400m_dev(i2400m);
@ -280,8 +280,22 @@ int i2400ms_bus_reset(struct i2400m *i2400m, enum i2400m_reset_type rt)
sizeof(i2400m_COLD_BOOT_BARKER));
else if (rt == I2400M_RT_BUS) {
do_bus_reset:
dev_err(dev, "FIXME: SDIO bus reset not implemented\n");
result = rt == I2400M_RT_WARM ? -ENODEV : -ENOSYS;
/* call netif_tx_disable() before sending IOE disable,
* so that all the tx from network layer are stopped
* while IOE is being reset. Make sure it is called
* only after register_netdev() was issued.
*/
if (i2400m->wimax_dev.net_dev->reg_state == NETREG_REGISTERED)
netif_tx_disable(i2400m->wimax_dev.net_dev);
sdio_claim_host(i2400ms->func);
sdio_disable_func(i2400ms->func);
sdio_release_host(i2400ms->func);
/* Wait for the device to settle */
msleep(40);
result = i2400ms_enable_function(i2400ms->func);
} else
BUG();
if (result < 0 && rt != I2400M_RT_BUS) {