diff options
Diffstat (limited to 'drivers/staging/lirc/lirc_zilog.c')
| -rw-r--r-- | drivers/staging/lirc/lirc_zilog.c | 48 |
1 files changed, 31 insertions, 17 deletions
diff --git a/drivers/staging/lirc/lirc_zilog.c b/drivers/staging/lirc/lirc_zilog.c index f0076eb025f..ad29bb1275a 100644 --- a/drivers/staging/lirc/lirc_zilog.c +++ b/drivers/staging/lirc/lirc_zilog.c @@ -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 @@ -883,7 +880,6 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key) return -EFAULT; } -done: /* Oh good, it worked */ dprintk("sent code %u, key %u\n", code, key); return 0; @@ -1112,12 +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 }, { } }; @@ -1197,10 +1195,25 @@ 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. */ @@ -1242,6 +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; |