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marcus.erl |
/*
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* saa711x - Philips SAA711x video decoder driver version 0.0.1
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*
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* To do: Now, it handles only saa7113/7114. Should be improved to
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* handle all Philips saa711x devices.
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*
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* Based on saa7113 driver from Dave Perks <dperks@ibm.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/errno.h>
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#include <linux/fs.h>
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#include <linux/kernel.h>
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#include <linux/major.h>
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#include <linux/slab.h>
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#include <linux/mm.h>
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#include <linux/signal.h>
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#include <asm/io.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <linux/types.h>
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#include <asm/uaccess.h>
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#include <linux/videodev.h>
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MODULE_DESCRIPTION("Philips SAA711x video decoder driver");
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MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
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MODULE_LICENSE("GPL");
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#include <linux/i2c.h>
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#define I2C_NAME(s) (s)->name
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#include <linux/video_decoder.h>
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static int debug = 0;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, " Set the default Debug level. Default: 0 (Off) - (0-1)");
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#define dprintk(num, format, args...) \
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do { \
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if (debug >= num) \
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printk(format, ##args); \
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} while (0)
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/* ----------------------------------------------------------------------- */
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struct saa711x {
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unsigned char reg[32];
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int norm;
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int input;
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int enable;
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int bright;
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int contrast;
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int hue;
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int sat;
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};
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#define I2C_SAA7113 0x4A
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#define I2C_SAA7114 0x42
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/* ----------------------------------------------------------------------- */
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static inline int
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saa711x_write (struct i2c_client *client,
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u8 reg,
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u8 value)
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{
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struct saa711x *decoder = i2c_get_clientdata(client);
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decoder->reg[reg] = value;
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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static int
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saa711x_write_block (struct i2c_client *client,
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const u8 *data,
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unsigned int len)
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{
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int ret = -1;
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u8 reg;
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/* the saa711x has an autoincrement function, use it if
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* the adapter understands raw I2C */
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if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
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/* do raw I2C, not smbus compatible */
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struct saa711x *decoder = i2c_get_clientdata(client);
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struct i2c_msg msg;
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u8 block_data[32];
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msg.addr = client->addr;
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msg.flags = 0;
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while (len >= 2) {
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msg.buf = (char *) block_data;
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msg.len = 0;
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block_data[msg.len++] = reg = data[0];
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do {
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block_data[msg.len++] =
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decoder->reg[reg++] = data[1];
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len -= 2;
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data += 2;
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} while (len >= 2 && data[0] == reg &&
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msg.len < 32);
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if ((ret = i2c_transfer(client->adapter,
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&msg, 1)) < 0)
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break;
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}
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} else {
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/* do some slow I2C emulation kind of thing */
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while (len >= 2) {
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reg = *data++;
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if ((ret = saa711x_write(client, reg,
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*data++)) < 0)
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break;
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len -= 2;
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}
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}
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return ret;
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}
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static int
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saa711x_init_decoder (struct i2c_client *client,
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struct video_decoder_init *init)
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{
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return saa711x_write_block(client, init->data, init->len);
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}
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static inline int
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saa711x_read (struct i2c_client *client,
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u8 reg)
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{
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return i2c_smbus_read_byte_data(client, reg);
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}
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/* ----------------------------------------------------------------------- */
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static const unsigned char saa711x_i2c_init[] = {
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0x00, 0x00, /* PH711x_CHIP_VERSION 00 - ID byte */
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0x01, 0x08, /* PH711x_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
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0x02, 0xc0, /* PH711x_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
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0x03, 0x23, /* PH711x_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
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0x04, 0x00, /* PH711x_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
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0x05, 0x00, /* PH711x_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
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0x06, 0xeb, /* PH711x_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
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0x07, 0xe0, /* PH711x_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
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0x08, 0x88, /* PH711x_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
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0x09, 0x00, /* PH711x_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
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0x0a, 0x80, /* PH711x_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
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0x0b, 0x47, /* PH711x_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
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0x0c, 0x40, /* PH711x_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
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0x0d, 0x00, /* PH711x_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
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0x0e, 0x01, /* PH711x_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
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0x0f, 0xaa, /* PH711x_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
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0x10, 0x00, /* PH711x_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
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0x11, 0x1C, /* PH711x_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
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0x12, 0x01, /* PH711x_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
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0x13, 0x00, /* PH711x_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
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0x14, 0x00, /* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
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0x15, 0x00, /* PH711x_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
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0x16, 0x00, /* PH711x_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
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0x17, 0x00, /* PH711x_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
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};
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| 181 |
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| 182 |
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static int
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saa711x_command (struct i2c_client *client,
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| 184 |
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unsigned int cmd,
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| 185 |
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void *arg)
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| 186 |
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{
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| 187 |
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struct saa711x *decoder = i2c_get_clientdata(client);
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| 188 |
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| 189 |
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switch (cmd) {
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| 190 |
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case 0:
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| 192 |
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case DECODER_INIT:
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| 193 |
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{
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| 194 |
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struct video_decoder_init *init = arg;
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| 195 |
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if (NULL != init)
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| 196 |
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return saa711x_init_decoder(client, init);
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| 197 |
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else {
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| 198 |
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struct video_decoder_init vdi;
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| 199 |
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vdi.data = saa711x_i2c_init;
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| 200 |
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vdi.len = sizeof(saa711x_i2c_init);
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| 201 |
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return saa711x_init_decoder(client, &vdi);
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| 202 |
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}
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| 203 |
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}
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| 204 |
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| 205 |
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case DECODER_DUMP:
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| 206 |
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{
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| 207 |
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int i;
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| 208 |
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| 209 |
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for (i = 0; i < 32; i += 16) {
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| 210 |
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int j;
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| 211 |
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| 212 |
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printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
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| 213 |
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for (j = 0; j < 16; ++j) {
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| 214 |
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printk(" %02x",
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| 215 |
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saa711x_read(client, i + j));
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| 216 |
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}
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| 217 |
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printk("\n");
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| 218 |
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}
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| 219 |
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}
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| 220 |
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break;
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| 221 |
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| 222 |
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case DECODER_GET_CAPABILITIES:
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| 223 |
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{
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| 224 |
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struct video_decoder_capability *cap = arg;
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| 225 |
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| 226 |
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cap->flags = VIDEO_DECODER_PAL |
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| 227 |
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VIDEO_DECODER_NTSC |
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| 228 |
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VIDEO_DECODER_SECAM |
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| 229 |
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VIDEO_DECODER_AUTO |
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| 230 |
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VIDEO_DECODER_CCIR;
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| 231 |
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cap->inputs = 8;
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| 232 |
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cap->outputs = 1;
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| 233 |
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}
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| 234 |
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break;
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| 235 |
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| 236 |
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case DECODER_GET_STATUS:
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| 237 |
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{
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| 238 |
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int *iarg = arg;
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| 239 |
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int status;
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| 240 |
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int res;
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| 241 |
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| 242 |
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status = saa711x_read(client, 0x1f);
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| 243 |
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dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
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| 244 |
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status);
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| 245 |
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res = 0;
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| 246 |
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if ((status & (1 << 6)) == 0) {
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| 247 |
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res |= DECODER_STATUS_GOOD;
|
| 248 |
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}
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| 249 |
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switch (decoder->norm) {
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| 250 |
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case VIDEO_MODE_NTSC:
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| 251 |
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res |= DECODER_STATUS_NTSC;
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| 252 |
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break;
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| 253 |
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case VIDEO_MODE_PAL:
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| 254 |
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res |= DECODER_STATUS_PAL;
|
| 255 |
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break;
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| 256 |
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case VIDEO_MODE_SECAM:
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| 257 |
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res |= DECODER_STATUS_SECAM;
|
| 258 |
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break;
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| 259 |
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default:
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| 260 |
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case VIDEO_MODE_AUTO:
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| 261 |
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if ((status & (1 << 5)) != 0) {
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| 262 |
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res |= DECODER_STATUS_NTSC;
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| 263 |
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} else {
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| 264 |
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res |= DECODER_STATUS_PAL;
|
| 265 |
|
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}
|
| 266 |
|
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break;
|
| 267 |
|
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}
|
| 268 |
|
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if ((status & (1 << 0)) != 0) {
|
| 269 |
|
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res |= DECODER_STATUS_COLOR;
|
| 270 |
|
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}
|
| 271 |
|
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*iarg = res;
|
| 272 |
|
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}
|
| 273 |
|
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break;
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| 274 |
|
|
|
| 275 |
|
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case DECODER_SET_GPIO:
|
| 276 |
|
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{
|
| 277 |
|
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int *iarg = arg;
|
| 278 |
|
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if (0 != *iarg) {
|
| 279 |
|
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saa711x_write(client, 0x11,
|
| 280 |
|
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(decoder->reg[0x11] | 0x80));
|
| 281 |
|
|
} else {
|
| 282 |
|
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saa711x_write(client, 0x11,
|
| 283 |
|
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(decoder->reg[0x11] & 0x7f));
|
| 284 |
|
|
}
|
| 285 |
|
|
break;
|
| 286 |
|
|
}
|
| 287 |
|
|
|
| 288 |
|
|
case DECODER_SET_VBI_BYPASS:
|
| 289 |
|
|
{
|
| 290 |
|
|
int *iarg = arg;
|
| 291 |
|
|
if (0 != *iarg) {
|
| 292 |
|
|
saa711x_write(client, 0x13,
|
| 293 |
|
|
(decoder->reg[0x13] & 0xf0) | 0x0a);
|
| 294 |
|
|
} else {
|
| 295 |
|
|
saa711x_write(client, 0x13,
|
| 296 |
|
|
(decoder->reg[0x13] & 0xf0));
|
| 297 |
|
|
}
|
| 298 |
|
|
break;
|
| 299 |
|
|
}
|
| 300 |
|
|
|
| 301 |
|
|
case DECODER_SET_NORM:
|
| 302 |
|
|
{
|
| 303 |
|
|
int *iarg = arg;
|
| 304 |
|
|
|
| 305 |
|
|
switch (*iarg) {
|
| 306 |
|
|
|
| 307 |
|
|
case VIDEO_MODE_NTSC:
|
| 308 |
|
|
saa711x_write(client, 0x08,
|
| 309 |
|
|
(decoder->reg[0x08] & 0x3f) | 0x40);
|
| 310 |
|
|
saa711x_write(client, 0x0e,
|
| 311 |
|
|
(decoder->reg[0x0e] & 0x8f));
|
| 312 |
|
|
break;
|
| 313 |
|
|
|
| 314 |
|
|
case VIDEO_MODE_PAL:
|
| 315 |
|
|
saa711x_write(client, 0x08,
|
| 316 |
|
|
(decoder->reg[0x08] & 0x3f) | 0x00);
|
| 317 |
|
|
saa711x_write(client, 0x0e,
|
| 318 |
|
|
(decoder->reg[0x0e] & 0x8f));
|
| 319 |
|
|
break;
|
| 320 |
|
|
|
| 321 |
|
|
case VIDEO_MODE_SECAM:
|
| 322 |
|
|
saa711x_write(client, 0x08,
|
| 323 |
|
|
(decoder->reg[0x08] & 0x3f) | 0x00);
|
| 324 |
|
|
saa711x_write(client, 0x0e,
|
| 325 |
|
|
(decoder->reg[0x0e] & 0x8f) | 0x50);
|
| 326 |
|
|
break;
|
| 327 |
|
|
|
| 328 |
|
|
case VIDEO_MODE_AUTO:
|
| 329 |
|
|
saa711x_write(client, 0x08,
|
| 330 |
|
|
(decoder->reg[0x08] & 0x3f) | 0x80);
|
| 331 |
|
|
saa711x_write(client, 0x0e,
|
| 332 |
|
|
(decoder->reg[0x0e] & 0x8f));
|
| 333 |
|
|
break;
|
| 334 |
|
|
|
| 335 |
|
|
default:
|
| 336 |
|
|
return -EINVAL;
|
| 337 |
|
|
|
| 338 |
|
|
}
|
| 339 |
|
|
decoder->norm = *iarg;
|
| 340 |
|
|
}
|
| 341 |
|
|
break;
|
| 342 |
|
|
|
| 343 |
|
|
case DECODER_SET_INPUT:
|
| 344 |
|
|
{
|
| 345 |
|
|
int *iarg = arg;
|
| 346 |
|
|
if (*iarg < 0 || *iarg > 9) {
|
| 347 |
|
|
return -EINVAL;
|
| 348 |
|
|
}
|
| 349 |
|
|
if (decoder->input != *iarg) {
|
| 350 |
|
|
decoder->input = *iarg;
|
| 351 |
|
|
/* select mode */
|
| 352 |
|
|
saa711x_write(client, 0x02,
|
| 353 |
|
|
(decoder->reg[0x02] & 0xf0) | decoder->input);
|
| 354 |
|
|
/* bypass chrominance trap for modes 4..7 */
|
| 355 |
|
|
saa711x_write(client, 0x09,
|
| 356 |
|
|
(decoder->reg[0x09] & 0x7f) | ((decoder->input > 3) ? 0x80 : 0));
|
| 357 |
|
|
}
|
| 358 |
|
|
}
|
| 359 |
|
|
break;
|
| 360 |
|
|
|
| 361 |
|
|
case DECODER_SET_OUTPUT:
|
| 362 |
|
|
{
|
| 363 |
|
|
int *iarg = arg;
|
| 364 |
|
|
|
| 365 |
|
|
/* not much choice of outputs */
|
| 366 |
|
|
if (*iarg != 0) {
|
| 367 |
|
|
return -EINVAL;
|
| 368 |
|
|
}
|
| 369 |
|
|
}
|
| 370 |
|
|
break;
|
| 371 |
|
|
|
| 372 |
|
|
case DECODER_ENABLE_OUTPUT:
|
| 373 |
|
|
{
|
| 374 |
|
|
int *iarg = arg;
|
| 375 |
|
|
int enable = (*iarg != 0);
|
| 376 |
|
|
|
| 377 |
|
|
if (decoder->enable != enable) {
|
| 378 |
|
|
decoder->enable = enable;
|
| 379 |
|
|
|
| 380 |
|
|
/* RJ: If output should be disabled (for
|
| 381 |
|
|
* playing videos), we also need a open PLL.
|
| 382 |
|
|
* The input is set to 0 (where no input
|
| 383 |
|
|
* source is connected), although this
|
| 384 |
|
|
* is not necessary.
|
| 385 |
|
|
*
|
| 386 |
|
|
* If output should be enabled, we have to
|
| 387 |
|
|
* reverse the above.
|
| 388 |
|
|
*/
|
| 389 |
|
|
|
| 390 |
|
|
if (decoder->enable) {
|
| 391 |
|
|
saa711x_write(client, 0x02,
|
| 392 |
|
|
(decoder->
|
| 393 |
|
|
reg[0x02] & 0xf8) |
|
| 394 |
|
|
decoder->input);
|
| 395 |
|
|
saa711x_write(client, 0x08,
|
| 396 |
|
|
(decoder->reg[0x08] & 0xfb));
|
| 397 |
|
|
saa711x_write(client, 0x11,
|
| 398 |
|
|
(decoder->
|
| 399 |
|
|
reg[0x11] & 0xf3) | 0x0c);
|
| 400 |
|
|
} else {
|
| 401 |
|
|
saa711x_write(client, 0x02,
|
| 402 |
|
|
(decoder->reg[0x02] & 0xf8));
|
| 403 |
|
|
saa711x_write(client, 0x08,
|
| 404 |
|
|
(decoder->
|
| 405 |
|
|
reg[0x08] & 0xfb) | 0x04);
|
| 406 |
|
|
saa711x_write(client, 0x11,
|
| 407 |
|
|
(decoder->reg[0x11] & 0xf3));
|
| 408 |
|
|
}
|
| 409 |
|
|
}
|
| 410 |
|
|
}
|
| 411 |
|
|
break;
|
| 412 |
|
|
|
| 413 |
|
|
case DECODER_SET_PICTURE:
|
| 414 |
|
|
{
|
| 415 |
|
|
struct video_picture *pic = arg;
|
| 416 |
|
|
|
| 417 |
|
|
if (decoder->bright != pic->brightness) {
|
| 418 |
|
|
/* We want 0 to 255 we get 0-65535 */
|
| 419 |
|
|
decoder->bright = pic->brightness;
|
| 420 |
|
|
saa711x_write(client, 0x0a, decoder->bright >> 8);
|
| 421 |
|
|
}
|
| 422 |
|
|
if (decoder->contrast != pic->contrast) {
|
| 423 |
|
|
/* We want 0 to 127 we get 0-65535 */
|
| 424 |
|
|
decoder->contrast = pic->contrast;
|
| 425 |
|
|
saa711x_write(client, 0x0b,
|
| 426 |
|
|
decoder->contrast >> 9);
|
| 427 |
|
|
}
|
| 428 |
|
|
if (decoder->sat != pic->colour) {
|
| 429 |
|
|
/* We want 0 to 127 we get 0-65535 */
|
| 430 |
|
|
decoder->sat = pic->colour;
|
| 431 |
|
|
saa711x_write(client, 0x0c, decoder->sat >> 9);
|
| 432 |
|
|
}
|
| 433 |
|
|
if (decoder->hue != pic->hue) {
|
| 434 |
|
|
/* We want -128 to 127 we get 0-65535 */
|
| 435 |
|
|
decoder->hue = pic->hue;
|
| 436 |
|
|
saa711x_write(client, 0x0d,
|
| 437 |
|
|
(decoder->hue - 32768) >> 8);
|
| 438 |
|
|
}
|
| 439 |
|
|
}
|
| 440 |
|
|
break;
|
| 441 |
|
|
|
| 442 |
|
|
default:
|
| 443 |
|
|
return -EINVAL;
|
| 444 |
|
|
}
|
| 445 |
|
|
|
| 446 |
|
|
return 0;
|
| 447 |
|
|
}
|
| 448 |
|
|
|
| 449 |
|
|
/* ----------------------------------------------------------------------- */
|
| 450 |
|
|
|
| 451 |
|
|
/*
|
| 452 |
|
|
* Generic i2c probe
|
| 453 |
|
|
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
|
| 454 |
|
|
*/
|
| 455 |
|
|
|
| 456 |
|
|
/* standard i2c insmod options */
|
| 457 |
|
|
static unsigned short normal_i2c[] = {
|
| 458 |
|
|
I2C_SAA7113>>1, /* saa7113 */
|
| 459 |
|
|
I2C_SAA7114>>1, /* saa7114 */
|
| 460 |
|
|
I2C_CLIENT_END
|
| 461 |
|
|
};
|
| 462 |
|
|
|
| 463 |
|
|
I2C_CLIENT_INSMOD;
|
| 464 |
|
|
|
| 465 |
|
|
|
| 466 |
|
|
static struct i2c_driver i2c_driver_saa711x;
|
| 467 |
|
|
|
| 468 |
|
|
static int
|
| 469 |
|
|
saa711x_detect_client (struct i2c_adapter *adapter,
|
| 470 |
|
|
int address,
|
| 471 |
|
|
int kind)
|
| 472 |
|
|
{
|
| 473 |
|
|
int i;
|
| 474 |
|
|
struct i2c_client *client;
|
| 475 |
|
|
struct saa711x *decoder;
|
| 476 |
|
|
struct video_decoder_init vdi;
|
| 477 |
|
|
|
| 478 |
|
|
dprintk(1,
|
| 479 |
|
|
KERN_INFO
|
| 480 |
|
|
"saa711x.c: detecting saa711x client on address 0x%x\n",
|
| 481 |
|
|
address << 1);
|
| 482 |
|
|
|
| 483 |
|
|
/* Check if the adapter supports the needed features */
|
| 484 |
|
|
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
|
| 485 |
|
|
return 0;
|
| 486 |
|
|
|
| 487 |
|
|
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
|
| 488 |
|
|
if (client == 0)
|
| 489 |
|
|
return -ENOMEM;
|
| 490 |
|
|
client->addr = address;
|
| 491 |
|
|
client->adapter = adapter;
|
| 492 |
|
|
client->driver = &i2c_driver_saa711x;
|
| 493 |
|
|
strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
|
| 494 |
|
|
decoder = kzalloc(sizeof(struct saa711x), GFP_KERNEL);
|
| 495 |
|
|
if (decoder == NULL) {
|
| 496 |
|
|
kfree(client);
|
| 497 |
|
|
return -ENOMEM;
|
| 498 |
|
|
}
|
| 499 |
|
|
decoder->norm = VIDEO_MODE_NTSC;
|
| 500 |
|
|
decoder->input = 0;
|
| 501 |
|
|
decoder->enable = 1;
|
| 502 |
|
|
decoder->bright = 32768;
|
| 503 |
|
|
decoder->contrast = 32768;
|
| 504 |
|
|
decoder->hue = 32768;
|
| 505 |
|
|
decoder->sat = 32768;
|
| 506 |
|
|
i2c_set_clientdata(client, decoder);
|
| 507 |
|
|
|
| 508 |
|
|
i = i2c_attach_client(client);
|
| 509 |
|
|
if (i) {
|
| 510 |
|
|
kfree(client);
|
| 511 |
|
|
kfree(decoder);
|
| 512 |
|
|
return i;
|
| 513 |
|
|
}
|
| 514 |
|
|
|
| 515 |
|
|
vdi.data = saa711x_i2c_init;
|
| 516 |
|
|
vdi.len = sizeof(saa711x_i2c_init);
|
| 517 |
|
|
i = saa711x_init_decoder(client, &vdi);
|
| 518 |
|
|
if (i < 0) {
|
| 519 |
|
|
dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
|
| 520 |
|
|
I2C_NAME(client), i);
|
| 521 |
|
|
} else {
|
| 522 |
|
|
dprintk(1,
|
| 523 |
|
|
KERN_INFO
|
| 524 |
|
|
"%s_attach: chip version %x at address 0x%x\n",
|
| 525 |
|
|
I2C_NAME(client), saa711x_read(client, 0x00) >> 4,
|
| 526 |
|
|
client->addr << 1);
|
| 527 |
|
|
}
|
| 528 |
|
|
|
| 529 |
|
|
return 0;
|
| 530 |
|
|
}
|
| 531 |
|
|
|
| 532 |
|
|
static int
|
| 533 |
|
|
saa711x_attach_adapter (struct i2c_adapter *adapter)
|
| 534 |
|
|
{
|
| 535 |
|
|
dprintk(1,
|
| 536 |
|
|
KERN_INFO
|
| 537 |
|
|
"saa711x.c: starting probe for adapter %s (0x%x)\n",
|
| 538 |
|
|
I2C_NAME(adapter), adapter->id);
|
| 539 |
|
|
return i2c_probe(adapter, &addr_data, &saa711x_detect_client);
|
| 540 |
|
|
}
|
| 541 |
|
|
|
| 542 |
|
|
static int
|
| 543 |
|
|
saa711x_detach_client (struct i2c_client *client)
|
| 544 |
|
|
{
|
| 545 |
|
|
struct saa711x *decoder = i2c_get_clientdata(client);
|
| 546 |
|
|
int err;
|
| 547 |
|
|
|
| 548 |
|
|
err = i2c_detach_client(client);
|
| 549 |
|
|
if (err) {
|
| 550 |
|
|
return err;
|
| 551 |
|
|
}
|
| 552 |
|
|
|
| 553 |
|
|
kfree(decoder);
|
| 554 |
|
|
kfree(client);
|
| 555 |
|
|
|
| 556 |
|
|
return 0;
|
| 557 |
|
|
}
|
| 558 |
|
|
|
| 559 |
|
|
/* ----------------------------------------------------------------------- */
|
| 560 |
|
|
|
| 561 |
|
|
static struct i2c_driver i2c_driver_saa711x = {
|
| 562 |
|
|
.driver = {
|
| 563 |
|
|
.name = "saa711x",
|
| 564 |
|
|
},
|
| 565 |
|
|
.id = I2C_DRIVERID_SAA711X,
|
| 566 |
|
|
.attach_adapter = saa711x_attach_adapter,
|
| 567 |
|
|
.detach_client = saa711x_detach_client,
|
| 568 |
|
|
.command = saa711x_command,
|
| 569 |
|
|
};
|
| 570 |
|
|
|
| 571 |
|
|
static int __init
|
| 572 |
|
|
saa711x_init (void)
|
| 573 |
|
|
{
|
| 574 |
|
|
return i2c_add_driver(&i2c_driver_saa711x);
|
| 575 |
|
|
}
|
| 576 |
|
|
|
| 577 |
|
|
static void __exit
|
| 578 |
|
|
saa711x_exit (void)
|
| 579 |
|
|
{
|
| 580 |
|
|
i2c_del_driver(&i2c_driver_saa711x);
|
| 581 |
|
|
}
|
| 582 |
|
|
|
| 583 |
|
|
module_init(saa711x_init);
|
| 584 |
|
|
module_exit(saa711x_exit);
|
