diff options
Diffstat (limited to 'drivers/media/pci/cx88/cx88-i2c.c')
| -rw-r--r-- | drivers/media/pci/cx88/cx88-i2c.c | 95 |
1 files changed, 47 insertions, 48 deletions
diff --git a/drivers/media/pci/cx88/cx88-i2c.c b/drivers/media/pci/cx88/cx88-i2c.c index 831f8db5150e..99596fe56cd2 100644 --- a/drivers/media/pci/cx88/cx88-i2c.c +++ b/drivers/media/pci/cx88/cx88-i2c.c @@ -1,31 +1,26 @@ /* - - cx88-i2c.c -- all the i2c code is here - - Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) - & Marcus Metzler (mocm@thp.uni-koeln.de) - (c) 2002 Yurij Sysoev <yurij@naturesoft.net> - (c) 1999-2003 Gerd Knorr <kraxel@bytesex.org> - - (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org> - - Multituner support and i2c address binding - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ + * + * cx88-i2c.c -- all the i2c code is here + * + * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de) + * & Marcus Metzler (mocm@thp.uni-koeln.de) + * (c) 2002 Yurij Sysoev <yurij@naturesoft.net> + * (c) 1999-2003 Gerd Knorr <kraxel@bytesex.org> + * + * (c) 2005 Mauro Carvalho Chehab <mchehab@infradead.org> + * - Multituner support and i2c address binding + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #include "cx88.h" @@ -38,11 +33,11 @@ static unsigned int i2c_debug; module_param(i2c_debug, int, 0644); -MODULE_PARM_DESC(i2c_debug,"enable debug messages [i2c]"); +MODULE_PARM_DESC(i2c_debug, "enable debug messages [i2c]"); static unsigned int i2c_scan; module_param(i2c_scan, int, 0444); -MODULE_PARM_DESC(i2c_scan,"scan i2c bus at insmod time"); +MODULE_PARM_DESC(i2c_scan, "scan i2c bus at insmod time"); static unsigned int i2c_udelay = 5; module_param(i2c_udelay, int, 0644); @@ -112,22 +107,22 @@ static const struct i2c_algo_bit_data cx8800_i2c_algo_template = { /* ----------------------------------------------------------------------- */ static const char * const i2c_devs[128] = { - [ 0x1c >> 1 ] = "lgdt330x", - [ 0x86 >> 1 ] = "tda9887/cx22702", - [ 0xa0 >> 1 ] = "eeprom", - [ 0xc0 >> 1 ] = "tuner (analog)", - [ 0xc2 >> 1 ] = "tuner (analog/dvb)", - [ 0xc8 >> 1 ] = "xc5000", + [0x1c >> 1] = "lgdt330x", + [0x86 >> 1] = "tda9887/cx22702", + [0xa0 >> 1] = "eeprom", + [0xc0 >> 1] = "tuner (analog)", + [0xc2 >> 1] = "tuner (analog/dvb)", + [0xc8 >> 1] = "xc5000", }; static void do_i2c_scan(const char *name, struct i2c_client *c) { unsigned char buf; - int i,rc; + int i, rc; for (i = 0; i < ARRAY_SIZE(i2c_devs); i++) { c->addr = i; - rc = i2c_master_recv(c,&buf,0); + rc = i2c_master_recv(c, &buf, 0); if (rc < 0) continue; pr_info("i2c scan: found device @ 0x%x [%s]\n", @@ -139,14 +134,14 @@ static void do_i2c_scan(const char *name, struct i2c_client *c) int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) { /* Prevents usage of invalid delay values */ - if (i2c_udelay<5) - i2c_udelay=5; + if (i2c_udelay < 5) + i2c_udelay = 5; core->i2c_algo = cx8800_i2c_algo_template; core->i2c_adap.dev.parent = &pci->dev; - strlcpy(core->i2c_adap.name,core->name,sizeof(core->i2c_adap.name)); + strlcpy(core->i2c_adap.name, core->name, sizeof(core->i2c_adap.name)); core->i2c_adap.owner = THIS_MODULE; core->i2c_algo.udelay = i2c_udelay; core->i2c_algo.data = core; @@ -155,18 +150,22 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) core->i2c_client.adapter = &core->i2c_adap; strlcpy(core->i2c_client.name, "cx88xx internal", I2C_NAME_SIZE); - cx8800_bit_setscl(core,1); - cx8800_bit_setsda(core,1); + cx8800_bit_setscl(core, 1); + cx8800_bit_setsda(core, 1); core->i2c_rc = i2c_bit_add_bus(&core->i2c_adap); - if (0 == core->i2c_rc) { - static u8 tuner_data[] = - { 0x0b, 0xdc, 0x86, 0x52 }; - static struct i2c_msg tuner_msg = - { .flags = 0, .addr = 0xc2 >> 1, .buf = tuner_data, .len = 4 }; + if (core->i2c_rc == 0) { + static u8 tuner_data[] = { + 0x0b, 0xdc, 0x86, 0x52 }; + static struct i2c_msg tuner_msg = { + .flags = 0, + .addr = 0xc2 >> 1, + .buf = tuner_data, + .len = 4 + }; dprintk(1, "i2c register ok\n"); - switch( core->boardnr ) { + switch (core->boardnr) { case CX88_BOARD_HAUPPAUGE_HVR1300: case CX88_BOARD_HAUPPAUGE_HVR3000: case CX88_BOARD_HAUPPAUGE_HVR4000: @@ -177,7 +176,7 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci) break; } if (i2c_scan) - do_i2c_scan(core->name,&core->i2c_client); + do_i2c_scan(core->name, &core->i2c_client); } else pr_err("i2c register FAILED\n"); |