diff options
Diffstat (limited to 'drivers/media/video/bt8xx/bttv-i2c.c')
| -rw-r--r-- | drivers/media/video/bt8xx/bttv-i2c.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c index d49b675045f..e3952af7e56 100644 --- a/drivers/media/video/bt8xx/bttv-i2c.c +++ b/drivers/media/video/bt8xx/bttv-i2c.c @@ -27,6 +27,8 @@ */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/module.h> #include <linux/init.h> #include <linux/delay.h> @@ -154,9 +156,7 @@ bttv_i2c_sendbytes(struct bttv *btv, const struct i2c_msg *msg, int last) if (retval == 0) goto eio; if (i2c_debug) { - printk(" <W %02x %02x", msg->addr << 1, msg->buf[0]); - if (!(xmit & BT878_I2C_NOSTOP)) - printk(" >\n"); + pr_cont(" <W %02x %02x", msg->addr << 1, msg->buf[0]); } for (cnt = 1; cnt < msg->len; cnt++ ) { @@ -170,19 +170,18 @@ bttv_i2c_sendbytes(struct bttv *btv, const struct i2c_msg *msg, int last) goto err; if (retval == 0) goto eio; - if (i2c_debug) { - printk(" %02x", msg->buf[cnt]); - if (!(xmit & BT878_I2C_NOSTOP)) - printk(" >\n"); - } + if (i2c_debug) + pr_cont(" %02x", msg->buf[cnt]); } + if (!(xmit & BT878_I2C_NOSTOP)) + pr_cont(">\n"); return msg->len; eio: retval = -EIO; err: if (i2c_debug) - printk(" ERR: %d\n",retval); + pr_cont(" ERR: %d\n",retval); return retval; } @@ -193,7 +192,7 @@ bttv_i2c_readbytes(struct bttv *btv, const struct i2c_msg *msg, int last) u32 cnt; int retval; - for(cnt = 0; cnt < msg->len; cnt++) { + for (cnt = 0; cnt < msg->len; cnt++) { xmit = (msg->addr << 25) | (1 << 24) | I2C_HW; if (cnt < msg->len-1) xmit |= BT848_I2C_W3B; @@ -201,6 +200,12 @@ bttv_i2c_readbytes(struct bttv *btv, const struct i2c_msg *msg, int last) xmit |= BT878_I2C_NOSTOP; if (cnt) xmit |= BT878_I2C_NOSTART; + + if (i2c_debug) { + if (!(xmit & BT878_I2C_NOSTART)) + pr_cont(" <R %02x", (msg->addr << 1) +1); + } + btwrite(xmit, BT848_I2C); retval = bttv_i2c_wait_done(btv); if (retval < 0) @@ -209,20 +214,20 @@ bttv_i2c_readbytes(struct bttv *btv, const struct i2c_msg *msg, int last) goto eio; msg->buf[cnt] = ((u32)btread(BT848_I2C) >> 8) & 0xff; if (i2c_debug) { - if (!(xmit & BT878_I2C_NOSTART)) - printk(" <R %02x", (msg->addr << 1) +1); - printk(" =%02x", msg->buf[cnt]); - if (!(xmit & BT878_I2C_NOSTOP)) - printk(" >\n"); + pr_cont(" =%02x", msg->buf[cnt]); } + if (i2c_debug && !(xmit & BT878_I2C_NOSTOP)) + pr_cont(" >\n"); } + + return msg->len; eio: retval = -EIO; err: if (i2c_debug) - printk(" ERR: %d\n",retval); + pr_cont(" ERR: %d\n",retval); return retval; } @@ -234,7 +239,8 @@ static int bttv_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int int i; if (i2c_debug) - printk("bt-i2c:"); + pr_debug("bt-i2c:"); + btwrite(BT848_INT_I2CDONE|BT848_INT_RACK, BT848_INT_STAT); for (i = 0 ; i < num; i++) { if (msgs[i].flags & I2C_M_RD) { @@ -271,20 +277,20 @@ int bttv_I2CRead(struct bttv *btv, unsigned char addr, char *probe_for) if (0 != btv->i2c_rc) return -1; if (bttv_verbose && NULL != probe_for) - printk(KERN_INFO "bttv%d: i2c: checking for %s @ 0x%02x... ", - btv->c.nr,probe_for,addr); + pr_info("%d: i2c: checking for %s @ 0x%02x... ", + btv->c.nr, probe_for, addr); btv->i2c_client.addr = addr >> 1; if (1 != i2c_master_recv(&btv->i2c_client, &buffer, 1)) { if (NULL != probe_for) { if (bttv_verbose) - printk("not found\n"); + pr_cont("not found\n"); } else - printk(KERN_WARNING "bttv%d: i2c read 0x%x: error\n", - btv->c.nr,addr); + pr_warn("%d: i2c read 0x%x: error\n", + btv->c.nr, addr); return -1; } if (bttv_verbose && NULL != probe_for) - printk("found\n"); + pr_cont("found\n"); return buffer; } @@ -335,8 +341,8 @@ static void do_i2c_scan(char *name, struct i2c_client *c) rc = i2c_master_recv(c,&buf,0); if (rc < 0) continue; - printk("%s: i2c scan: found device @ 0x%x [%s]\n", - name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???"); + pr_info("%s: i2c scan: found device @ 0x%x [%s]\n", + name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???"); } } |