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| author | Dirk Brandewie <dirk.j.brandewie@intel.com> | 2009-05-12 07:54:00 -0700 |
|---|---|---|
| committer | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-06-11 03:30:20 -0700 |
| commit | 10b1de6b774a531c9054ee01e734a85ffbab179e (patch) | |
| tree | b56c38c7953faca21b1f4aee6709d5d3acfd3956 | |
| parent | ead68239913cb9c19150facf1656517f81d66fcb (diff) | |
| download | linux-10b1de6b774a531c9054ee01e734a85ffbab179e.tar.gz | |
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>
| -rw-r--r-- | drivers/net/wimax/i2400m/i2400m-sdio.h | 2 | ||||
| -rw-r--r-- | drivers/net/wimax/i2400m/sdio.c | 20 |
2 files changed, 19 insertions, 3 deletions
diff --git a/drivers/net/wimax/i2400m/i2400m-sdio.h b/drivers/net/wimax/i2400m/i2400m-sdio.h index 08c2fb739234..207172165ba2 100644 --- a/drivers/net/wimax/i2400m/i2400m-sdio.h +++ b/drivers/net/wimax/i2400m/i2400m-sdio.h @@ -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, }; diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index 777c981676fc..d6fac5ccf938 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -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) { |