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| author | Abylay Ospan <aospan@netup.ru> | 2009-09-16 20:08:06 +0400 |
|---|---|---|
| committer | Abylay Ospan <aospan@netup.ru> | 2009-09-16 20:08:06 +0400 |
| commit | d54457b30694e04b54a5e2742a2ae42274d54e50 (patch) | |
| tree | b7a2d40517bb4f0286a92778144ee174999f1db7 /linux/drivers | |
| parent | 7d2848a57e6a804443dba70e6ffd719c3145cb6a (diff) | |
| download | mediapointer-dvb-s2-d54457b30694e04b54a5e2742a2ae42274d54e50.tar.gz mediapointer-dvb-s2-d54457b30694e04b54a5e2742a2ae42274d54e50.tar.bz2 | |
Fix gpio mutex in NetUP Dual DVB-S2 CI card.
From: Abylay Ospan <aospan@netup.ru>
The card uses the same cx23885 gpio lines for two adapters.
In case of there is several cards in system we must implement
gpio mutex per cx23885 chip.
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Diffstat (limited to 'linux/drivers')
| -rw-r--r-- | linux/drivers/media/video/cx23885/cimax2.c | 12 | ||||
| -rw-r--r-- | linux/drivers/media/video/cx23885/cx23885-core.c | 1 | ||||
| -rw-r--r-- | linux/drivers/media/video/cx23885/cx23885.h | 1 |
3 files changed, 8 insertions, 6 deletions
diff --git a/linux/drivers/media/video/cx23885/cimax2.c b/linux/drivers/media/video/cx23885/cimax2.c index d717b9416..3143eb919 100644 --- a/linux/drivers/media/video/cx23885/cimax2.c +++ b/linux/drivers/media/video/cx23885/cimax2.c @@ -75,7 +75,6 @@ struct netup_ci_state { void *priv; }; -struct mutex gpio_mutex;/* Two CiMax's uses same GPIO lines */ int netup_read_i2c(struct i2c_adapter *i2c_adap, u8 addr, u8 reg, u8 *buf, int len) @@ -183,10 +182,11 @@ int netup_ci_op_cam(struct dvb_ca_en50221 *en50221, int slot, if (ret != 0) return ret; - mutex_lock(&gpio_mutex); + mutex_lock(&dev->gpio_lock); /* write addr */ cx_write(MC417_OEN, NETUP_EN_ALL); + msleep(2); cx_write(MC417_RWD, NETUP_CTRL_OFF | NETUP_ADLO | (0xff & addr)); cx_clear(MC417_RWD, NETUP_ADLO); @@ -194,9 +194,10 @@ int netup_ci_op_cam(struct dvb_ca_en50221 *en50221, int slot, NETUP_ADHI | (0xff & (addr >> 8))); cx_clear(MC417_RWD, NETUP_ADHI); - if (read) /* data in */ + if (read) { /* data in */ cx_write(MC417_OEN, NETUP_EN_ALL | NETUP_DATA); - else /* data out */ + msleep(2); + } else /* data out */ cx_write(MC417_RWD, NETUP_CTRL_OFF | data); /* choose chip */ @@ -206,7 +207,7 @@ int netup_ci_op_cam(struct dvb_ca_en50221 *en50221, int slot, cx_clear(MC417_RWD, (read) ? NETUP_RD : NETUP_WR); mem = netup_ci_get_mem(dev); - mutex_unlock(&gpio_mutex); + mutex_unlock(&dev->gpio_lock); if (!read) if (mem < 0) @@ -411,7 +412,6 @@ int netup_ci_init(struct cx23885_tsport *port) switch (port->nr) { case 1: state->ci_i2c_addr = 0x40; - mutex_init(&gpio_mutex); break; case 2: state->ci_i2c_addr = 0x41; diff --git a/linux/drivers/media/video/cx23885/cx23885-core.c b/linux/drivers/media/video/cx23885/cx23885-core.c index 4854d54f1..2479286ef 100644 --- a/linux/drivers/media/video/cx23885/cx23885-core.c +++ b/linux/drivers/media/video/cx23885/cx23885-core.c @@ -759,6 +759,7 @@ static int cx23885_dev_setup(struct cx23885_dev *dev) int i; mutex_init(&dev->lock); + mutex_init(&dev->gpio_lock); atomic_inc(&dev->refcount); diff --git a/linux/drivers/media/video/cx23885/cx23885.h b/linux/drivers/media/video/cx23885/cx23885.h index 6ddabc263..7605871ab 100644 --- a/linux/drivers/media/video/cx23885/cx23885.h +++ b/linux/drivers/media/video/cx23885/cx23885.h @@ -326,6 +326,7 @@ struct cx23885_dev { int nr; struct mutex lock; + struct mutex gpio_lock; /* board details */ unsigned int board; |