diff options
Diffstat (limited to 'drivers/media/video/tea5767.c')
| -rw-r--r-- | drivers/media/video/tea5767.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/media/video/tea5767.c b/drivers/media/video/tea5767.c index 4d27ac1b7fb8..cebcc1fa68d1 100644 --- a/drivers/media/video/tea5767.c +++ b/drivers/media/video/tea5767.c @@ -2,7 +2,7 @@ * For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview * I2C address is allways 0xC0. * - * $Id: tea5767.c,v 1.21 2005/07/14 03:06:43 mchehab Exp $ + * $Id: tea5767.c,v 1.27 2005/07/31 12:10:56 mchehab Exp $ * * Copyright (c) 2005 Mauro Carvalho Chehab (mchehab@brturbo.com.br) * This code is placed under the terms of the GNU General Public License @@ -15,7 +15,6 @@ #include <linux/videodev.h> #include <linux/delay.h> #include <media/tuner.h> -#include <media/tuner.h> #define PREFIX "TEA5767 " @@ -293,16 +292,16 @@ static int tea5767_stereo(struct i2c_client *c) int tea5767_autodetection(struct i2c_client *c) { - unsigned char buffer[5] = { 0xff, 0xff, 0xff, 0xff, 0xff }; + unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; int rc; struct tuner *t = i2c_get_clientdata(c); - if (5 != (rc = i2c_master_recv(c, buffer, 5))) { + if (7 != (rc = i2c_master_recv(c, buffer, 7))) { tuner_warn("It is not a TEA5767. Received %i bytes.\n", rc); return EINVAL; } - /* If all bytes are the same then it's a TV tuner and not a tea5767 chip. */ + /* If all bytes are the same then it's a TV tuner and not a tea5767 */ if (buffer[0] == buffer[1] && buffer[0] == buffer[2] && buffer[0] == buffer[3] && buffer[0] == buffer[4]) { tuner_warn("All bytes are equal. It is not a TEA5767\n"); @@ -318,6 +317,17 @@ int tea5767_autodetection(struct i2c_client *c) tuner_warn("Chip ID is not zero. It is not a TEA5767\n"); return EINVAL; } + /* It seems that tea5767 returns 0xff after the 5th byte */ + if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) { + tuner_warn("Returned more than 5 bytes. It is not a TEA5767\n"); + return EINVAL; + } + + /* It seems that tea5767 returns 0xff after the 5th byte */ + if ((buffer[5] != 0xff) || (buffer[6] != 0xff)) { + tuner_warn("Returned more than 5 bytes. It is not a TEA5767\n"); + return EINVAL; + } tuner_warn("TEA5767 detected.\n"); return 0; @@ -327,10 +337,8 @@ int tea5767_tuner_init(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); - if (tea5767_autodetection(c) == EINVAL) - return EINVAL; - - tuner_info("type set to %d (%s)\n", t->type, "Philips TEA5767HN FM Radio"); + tuner_info("type set to %d (%s)\n", t->type, + "Philips TEA5767HN FM Radio"); strlcpy(c->name, "tea5767", sizeof(c->name)); t->tv_freq = set_tv_freq; |