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[media] lirc_zilog: Remove use of deprecated struct i2c_adapter.id field 

Remove use of deprecated struct i2c_adapter.id field.  In the process,
perform different detection of the HD PVR's Z8 IR microcontroller versus
the other Hauppauge cards with the Z8 IR microcontroller.

Also added a comment about probe() function behavior that needs to be
fixed.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2010-12-28 22:49:50 -03:00 committed by Mauro Carvalho Chehab
parent a9cd591e29
commit d7c7235695
1 changed files with 31 additions and 16 deletions
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47
drivers/staging/lirc/lirc_zilog.c
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@ -66,6 +66,7 @@ struct IR {
/* Device info */
struct mutex ir_lock;
int open;
bool is_hdpvr;
/* RX device */
struct i2c_client c_rx;
@ -206,16 +207,12 @@ static int add_to_buf(struct IR *ir)
}
/* key pressed ? */
#ifdef I2C_HW_B_HDPVR
if (ir->c_rx.adapter->id == I2C_HW_B_HDPVR) {
if (ir->is_hdpvr) {
if (got_data && (keybuf[0] == 0x80))
return 0;
else if (got_data && (keybuf[0] == 0x00))
return -ENODATA;
} else if ((ir->b[0] & 0x80) == 0)
#else
if ((ir->b[0] & 0x80) == 0)
#endif
return got_data ? 0 : -ENODATA;
/* look what we have */
@ -841,15 +838,15 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key)
return ret < 0 ? ret : -EFAULT;
}
#ifdef I2C_HW_B_HDPVR
/*
* The sleep bits aren't necessary on the HD PVR, and in fact, the
* last i2c_master_recv always fails with a -5, so for now, we're
* going to skip this whole mess and say we're done on the HD PVR
*/
if (ir->c_rx.adapter->id == I2C_HW_B_HDPVR)
goto done;
#endif
if (ir->is_hdpvr) {
dprintk("sent code %u, key %u\n", code, key);
return 0;
}
/*
* This bit NAKs until the device is ready, so we retry it
@ -1111,12 +1108,14 @@ static int ir_remove(struct i2c_client *client);
static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id);
static int ir_command(struct i2c_client *client, unsigned int cmd, void *arg);
#define ID_FLAG_TX 0x01
#define ID_FLAG_HDPVR 0x02
static const struct i2c_device_id ir_transceiver_id[] = {
/* Generic entry for any IR transceiver */
{ "ir_video", 0 },
/* IR device specific entries should be added here */
{ "ir_tx_z8f0811_haup", 0 },
{ "ir_rx_z8f0811_haup", 0 },
{ "ir_tx_z8f0811_haup", ID_FLAG_TX },
{ "ir_rx_z8f0811_haup", 0 },
{ "ir_tx_z8f0811_hdpvr", ID_FLAG_HDPVR | ID_FLAG_TX },
{ "ir_rx_z8f0811_hdpvr", ID_FLAG_HDPVR },
{ }
};
@ -1196,9 +1195,24 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
int ret;
int have_rx = 0, have_tx = 0;
dprintk("%s: adapter id=0x%x, client addr=0x%02x\n",
__func__, adap->id, client->addr);
dprintk("%s: adapter name (%s) nr %d, i2c_device_id name (%s), "
"client addr=0x%02x\n",
__func__, adap->name, adap->nr, id->name, client->addr);
/*
* FIXME - This probe function probes both the Tx and Rx
* addresses of the IR microcontroller.
*
* However, the I2C subsystem is passing along one I2C client at a
* time, based on matches to the ir_transceiver_id[] table above.
* The expectation is that each i2c_client address will be probed
* individually by drivers so the I2C subsystem can mark all client
* addresses as claimed or not.
*
* This probe routine causes only one of the client addresses, TX or RX,
* to be claimed. This will cause a problem if the I2C subsystem is
* subsequently triggered to probe unclaimed clients again.
*/
/*
* The external IR receiver is at i2c address 0x71.
* The IR transmitter is at 0x70.
@ -1241,6 +1255,7 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
mutex_init(&ir->ir_lock);
mutex_init(&ir->buf_lock);
ir->need_boot = 1;
ir->is_hdpvr = (id->driver_data & ID_FLAG_HDPVR) ? true : false;
memcpy(&ir->l, &lirc_template, sizeof(struct lirc_driver));
ir->l.minor = -1;