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path: root/drivers/media/video/saa7114.c
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-rw-r--r--drivers/media/video/saa7114.c1241
1 files changed, 1241 insertions, 0 deletions
diff --git a/drivers/media/video/saa7114.c b/drivers/media/video/saa7114.c
new file mode 100644
index 000000000000..e73023695e58
--- /dev/null
+++ b/drivers/media/video/saa7114.c
@@ -0,0 +1,1241 @@
+/*
+ * saa7114 - Philips SAA7114H video decoder driver version 0.0.1
+ *
+ * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
+ *
+ * Based on saa7111 driver by Dave Perks
+ *
+ * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
+ *
+ * Slight changes for video timing and attachment output by
+ * Wolfgang Scherr <scherr@net4you.net>
+ *
+ * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
+ * - moved over to linux>=2.4.x i2c protocol (1/1/2003)
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+
+#include <linux/slab.h>
+
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/signal.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <linux/sched.h>
+#include <asm/segment.h>
+#include <linux/types.h>
+
+#include <linux/videodev.h>
+#include <asm/uaccess.h>
+
+MODULE_DESCRIPTION("Philips SAA7114H video decoder driver");
+MODULE_AUTHOR("Maxim Yevtyushkin");
+MODULE_LICENSE("GPL");
+
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+
+#define I2C_NAME(x) (x)->name
+
+#include <linux/video_decoder.h>
+
+static int debug = 0;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+#define dprintk(num, format, args...) \
+ do { \
+ if (debug >= num) \
+ printk(format, ##args); \
+ } while (0)
+
+/* ----------------------------------------------------------------------- */
+
+struct saa7114 {
+ unsigned char reg[0xf0 * 2];
+
+ int norm;
+ int input;
+ int enable;
+ int bright;
+ int contrast;
+ int hue;
+ int sat;
+ int playback;
+};
+
+#define I2C_SAA7114 0x42
+#define I2C_SAA7114A 0x40
+
+#define I2C_DELAY 10
+
+
+//#define SAA_7114_NTSC_HSYNC_START (-3)
+//#define SAA_7114_NTSC_HSYNC_STOP (-18)
+
+#define SAA_7114_NTSC_HSYNC_START (-17)
+#define SAA_7114_NTSC_HSYNC_STOP (-32)
+
+//#define SAA_7114_NTSC_HOFFSET (5)
+#define SAA_7114_NTSC_HOFFSET (6)
+#define SAA_7114_NTSC_VOFFSET (10)
+#define SAA_7114_NTSC_WIDTH (720)
+#define SAA_7114_NTSC_HEIGHT (250)
+
+#define SAA_7114_SECAM_HSYNC_START (-17)
+#define SAA_7114_SECAM_HSYNC_STOP (-32)
+
+#define SAA_7114_SECAM_HOFFSET (2)
+#define SAA_7114_SECAM_VOFFSET (10)
+#define SAA_7114_SECAM_WIDTH (720)
+#define SAA_7114_SECAM_HEIGHT (300)
+
+#define SAA_7114_PAL_HSYNC_START (-17)
+#define SAA_7114_PAL_HSYNC_STOP (-32)
+
+#define SAA_7114_PAL_HOFFSET (2)
+#define SAA_7114_PAL_VOFFSET (10)
+#define SAA_7114_PAL_WIDTH (720)
+#define SAA_7114_PAL_HEIGHT (300)
+
+
+
+#define SAA_7114_VERTICAL_CHROMA_OFFSET 0 //0x50504040
+#define SAA_7114_VERTICAL_LUMA_OFFSET 0
+
+#define REG_ADDR(x) (((x) << 1) + 1)
+#define LOBYTE(x) ((unsigned char)((x) & 0xff))
+#define HIBYTE(x) ((unsigned char)(((x) >> 8) & 0xff))
+#define LOWORD(x) ((unsigned short int)((x) & 0xffff))
+#define HIWORD(x) ((unsigned short int)(((x) >> 16) & 0xffff))
+
+
+/* ----------------------------------------------------------------------- */
+
+static inline int
+saa7114_write (struct i2c_client *client,
+ u8 reg,
+ u8 value)
+{
+ /*struct saa7114 *decoder = i2c_get_clientdata(client);*/
+
+ /*decoder->reg[reg] = value;*/
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int
+saa7114_write_block (struct i2c_client *client,
+ const u8 *data,
+ unsigned int len)
+{
+ int ret = -1;
+ u8 reg;
+
+ /* the saa7114 has an autoincrement function, use it if
+ * the adapter understands raw I2C */
+ if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ /* do raw I2C, not smbus compatible */
+ /*struct saa7114 *decoder = i2c_get_clientdata(client);*/
+ struct i2c_msg msg;
+ u8 block_data[32];
+
+ msg.addr = client->addr;
+ msg.flags = 0;
+ while (len >= 2) {
+ msg.buf = (char *) block_data;
+ msg.len = 0;
+ block_data[msg.len++] = reg = data[0];
+ do {
+ block_data[msg.len++] =
+ /*decoder->reg[reg++] =*/ data[1];
+ len -= 2;
+ data += 2;
+ } while (len >= 2 && data[0] == reg &&
+ msg.len < 32);
+ if ((ret = i2c_transfer(client->adapter,
+ &msg, 1)) < 0)
+ break;
+ }
+ } else {
+ /* do some slow I2C emulation kind of thing */
+ while (len >= 2) {
+ reg = *data++;
+ if ((ret = saa7114_write(client, reg,
+ *data++)) < 0)
+ break;
+ len -= 2;
+ }
+ }
+
+ return ret;
+}
+
+static inline int
+saa7114_read (struct i2c_client *client,
+ u8 reg)
+{
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+// initially set NTSC, composite
+
+
+static const unsigned char init[] = {
+ 0x00, 0x00, /* 00 - ID byte , chip version,
+ * read only */
+ 0x01, 0x08, /* 01 - X,X,X,X, IDEL3 to IDEL0 -
+ * horizontal increment delay,
+ * recommended position */
+ 0x02, 0x00, /* 02 - FUSE=3, GUDL=2, MODE=0 ;
+ * input control */
+ 0x03, 0x10, /* 03 - HLNRS=0, VBSL=1, WPOFF=0,
+ * HOLDG=0, GAFIX=0, GAI1=256, GAI2=256 */
+ 0x04, 0x90, /* 04 - GAI1=256 */
+ 0x05, 0x90, /* 05 - GAI2=256 */
+ 0x06, SAA_7114_NTSC_HSYNC_START, /* 06 - HSB: hsync start,
+ * depends on the video standard */
+ 0x07, SAA_7114_NTSC_HSYNC_STOP, /* 07 - HSS: hsync stop, depends
+ *on the video standard */
+ 0x08, 0xb8, /* 08 - AUFD=1, FSEL=1, EXFIL=0, VTRC=1,
+ * HPLL: free running in playback, locked
+ * in capture, VNOI=0 */
+ 0x09, 0x80, /* 09 - BYPS=0, PREF=0, BPSS=0, VBLB=0,
+ * UPTCV=0, APER=1; depends from input */
+ 0x0a, 0x80, /* 0a - BRIG=128 */
+ 0x0b, 0x44, /* 0b - CONT=1.109 */
+ 0x0c, 0x40, /* 0c - SATN=1.0 */
+ 0x0d, 0x00, /* 0d - HUE=0 */
+ 0x0e, 0x84, /* 0e - CDTO, CSTD2 to 0, DCVF, FCTC,
+ * CCOMB; depends from video standard */
+ 0x0f, 0x24, /* 0f - ACGC,CGAIN6 to CGAIN0; depends
+ * from video standard */
+ 0x10, 0x03, /* 10 - OFFU1 to 0, OFFV1 to 0, CHBW,
+ * LCBW2 to 0 */
+ 0x11, 0x59, /* 11 - COLO, RTP1, HEDL1 to 0, RTP0,
+ * YDEL2 to 0 */
+ 0x12, 0xc9, /* 12 - RT signal control RTSE13 to 10
+ * and 03 to 00 */
+ 0x13, 0x80, /* 13 - RT/X port output control */
+ 0x14, 0x00, /* 14 - analog, ADC, compatibility control */
+ 0x15, 0x00, /* 15 - VGATE start FID change */
+ 0x16, 0xfe, /* 16 - VGATE stop */
+ 0x17, 0x00, /* 17 - Misc., VGATE MSBs */
+ 0x18, 0x40, /* RAWG */
+ 0x19, 0x80, /* RAWO */
+ 0x1a, 0x00,
+ 0x1b, 0x00,
+ 0x1c, 0x00,
+ 0x1d, 0x00,
+ 0x1e, 0x00,
+ 0x1f, 0x00, /* status byte, read only */
+ 0x20, 0x00, /* video decoder reserved part */
+ 0x21, 0x00,
+ 0x22, 0x00,
+ 0x23, 0x00,
+ 0x24, 0x00,
+ 0x25, 0x00,
+ 0x26, 0x00,
+ 0x27, 0x00,
+ 0x28, 0x00,
+ 0x29, 0x00,
+ 0x2a, 0x00,
+ 0x2b, 0x00,
+ 0x2c, 0x00,
+ 0x2d, 0x00,
+ 0x2e, 0x00,
+ 0x2f, 0x00,
+ 0x30, 0xbc, /* audio clock generator */
+ 0x31, 0xdf,
+ 0x32, 0x02,
+ 0x33, 0x00,
+ 0x34, 0xcd,
+ 0x35, 0xcc,
+ 0x36, 0x3a,
+ 0x37, 0x00,
+ 0x38, 0x03,
+ 0x39, 0x10,
+ 0x3a, 0x00,
+ 0x3b, 0x00,
+ 0x3c, 0x00,
+ 0x3d, 0x00,
+ 0x3e, 0x00,
+ 0x3f, 0x00,
+ 0x40, 0x00, /* VBI data slicer */
+ 0x41, 0xff,
+ 0x42, 0xff,
+ 0x43, 0xff,
+ 0x44, 0xff,
+ 0x45, 0xff,
+ 0x46, 0xff,
+ 0x47, 0xff,
+ 0x48, 0xff,
+ 0x49, 0xff,
+ 0x4a, 0xff,
+ 0x4b, 0xff,
+ 0x4c, 0xff,
+ 0x4d, 0xff,
+ 0x4e, 0xff,
+ 0x4f, 0xff,
+ 0x50, 0xff,
+ 0x51, 0xff,
+ 0x52, 0xff,
+ 0x53, 0xff,
+ 0x54, 0xff,
+ 0x55, 0xff,
+ 0x56, 0xff,
+ 0x57, 0xff,
+ 0x58, 0x40, // framing code
+ 0x59, 0x47, // horizontal offset
+ 0x5a, 0x06, // vertical offset
+ 0x5b, 0x83, // field offset
+ 0x5c, 0x00, // reserved
+ 0x5d, 0x3e, // header and data
+ 0x5e, 0x00, // sliced data
+ 0x5f, 0x00, // reserved
+ 0x60, 0x00, /* video decoder reserved part */
+ 0x61, 0x00,
+ 0x62, 0x00,
+ 0x63, 0x00,
+ 0x64, 0x00,
+ 0x65, 0x00,
+ 0x66, 0x00,
+ 0x67, 0x00,
+ 0x68, 0x00,
+ 0x69, 0x00,
+ 0x6a, 0x00,
+ 0x6b, 0x00,
+ 0x6c, 0x00,
+ 0x6d, 0x00,
+ 0x6e, 0x00,
+ 0x6f, 0x00,
+ 0x70, 0x00, /* video decoder reserved part */
+ 0x71, 0x00,
+ 0x72, 0x00,
+ 0x73, 0x00,
+ 0x74, 0x00,
+ 0x75, 0x00,
+ 0x76, 0x00,
+ 0x77, 0x00,
+ 0x78, 0x00,
+ 0x79, 0x00,
+ 0x7a, 0x00,
+ 0x7b, 0x00,
+ 0x7c, 0x00,
+ 0x7d, 0x00,
+ 0x7e, 0x00,
+ 0x7f, 0x00,
+ 0x80, 0x00, /* X-port, I-port and scaler */
+ 0x81, 0x00,
+ 0x82, 0x00,
+ 0x83, 0x00,
+ 0x84, 0xc5,
+ 0x85, 0x0d, // hsync and vsync ?
+ 0x86, 0x40,
+ 0x87, 0x01,
+ 0x88, 0x00,
+ 0x89, 0x00,
+ 0x8a, 0x00,
+ 0x8b, 0x00,
+ 0x8c, 0x00,
+ 0x8d, 0x00,
+ 0x8e, 0x00,
+ 0x8f, 0x00,
+ 0x90, 0x03, /* Task A definition */
+ 0x91, 0x08,
+ 0x92, 0x00,
+ 0x93, 0x40,
+ 0x94, 0x00, // window settings
+ 0x95, 0x00,
+ 0x96, 0x00,
+ 0x97, 0x00,
+ 0x98, 0x00,
+ 0x99, 0x00,
+ 0x9a, 0x00,
+ 0x9b, 0x00,
+ 0x9c, 0x00,
+ 0x9d, 0x00,
+ 0x9e, 0x00,
+ 0x9f, 0x00,
+ 0xa0, 0x01, /* horizontal integer prescaling ratio */
+ 0xa1, 0x00, /* horizontal prescaler accumulation
+ * sequence length */
+ 0xa2, 0x00, /* UV FIR filter, Y FIR filter, prescaler
+ * DC gain */
+ 0xa3, 0x00,
+ 0xa4, 0x80, // luminance brightness
+ 0xa5, 0x40, // luminance gain
+ 0xa6, 0x40, // chrominance saturation
+ 0xa7, 0x00,
+ 0xa8, 0x00, // horizontal luminance scaling increment
+ 0xa9, 0x04,
+ 0xaa, 0x00, // horizontal luminance phase offset
+ 0xab, 0x00,
+ 0xac, 0x00, // horizontal chrominance scaling increment
+ 0xad, 0x02,
+ 0xae, 0x00, // horizontal chrominance phase offset
+ 0xaf, 0x00,
+ 0xb0, 0x00, // vertical luminance scaling increment
+ 0xb1, 0x04,
+ 0xb2, 0x00, // vertical chrominance scaling increment
+ 0xb3, 0x04,
+ 0xb4, 0x00,
+ 0xb5, 0x00,
+ 0xb6, 0x00,
+ 0xb7, 0x00,
+ 0xb8, 0x00,
+ 0xb9, 0x00,
+ 0xba, 0x00,
+ 0xbb, 0x00,
+ 0xbc, 0x00,
+ 0xbd, 0x00,
+ 0xbe, 0x00,
+ 0xbf, 0x00,
+ 0xc0, 0x02, // Task B definition
+ 0xc1, 0x08,
+ 0xc2, 0x00,
+ 0xc3, 0x40,
+ 0xc4, 0x00, // window settings
+ 0xc5, 0x00,
+ 0xc6, 0x00,
+ 0xc7, 0x00,
+ 0xc8, 0x00,
+ 0xc9, 0x00,
+ 0xca, 0x00,
+ 0xcb, 0x00,
+ 0xcc, 0x00,
+ 0xcd, 0x00,
+ 0xce, 0x00,
+ 0xcf, 0x00,
+ 0xd0, 0x01, // horizontal integer prescaling ratio
+ 0xd1, 0x00, // horizontal prescaler accumulation sequence length
+ 0xd2, 0x00, // UV FIR filter, Y FIR filter, prescaler DC gain
+ 0xd3, 0x00,
+ 0xd4, 0x80, // luminance brightness
+ 0xd5, 0x40, // luminance gain
+ 0xd6, 0x40, // chrominance saturation
+ 0xd7, 0x00,
+ 0xd8, 0x00, // horizontal luminance scaling increment
+ 0xd9, 0x04,
+ 0xda, 0x00, // horizontal luminance phase offset
+ 0xdb, 0x00,
+ 0xdc, 0x00, // horizontal chrominance scaling increment
+ 0xdd, 0x02,
+ 0xde, 0x00, // horizontal chrominance phase offset
+ 0xdf, 0x00,
+ 0xe0, 0x00, // vertical luminance scaling increment
+ 0xe1, 0x04,
+ 0xe2, 0x00, // vertical chrominance scaling increment
+ 0xe3, 0x04,
+ 0xe4, 0x00,
+ 0xe5, 0x00,
+ 0xe6, 0x00,
+ 0xe7, 0x00,
+ 0xe8, 0x00,
+ 0xe9, 0x00,
+ 0xea, 0x00,
+ 0xeb, 0x00,
+ 0xec, 0x00,
+ 0xed, 0x00,
+ 0xee, 0x00,
+ 0xef, 0x00
+};
+
+static int
+saa7114_command (struct i2c_client *client,
+ unsigned int cmd,
+ void *arg)
+{
+ struct saa7114 *decoder = i2c_get_clientdata(client);
+
+ switch (cmd) {
+
+ case 0:
+ //dprintk(1, KERN_INFO "%s: writing init\n", I2C_NAME(client));
+ //saa7114_write_block(client, init, sizeof(init));
+ break;
+
+ case DECODER_DUMP:
+ {
+ int i;
+
+ dprintk(1, KERN_INFO "%s: decoder dump\n", I2C_NAME(client));
+
+ for (i = 0; i < 32; i += 16) {
+ int j;
+
+ printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
+ for (j = 0; j < 16; ++j) {
+ printk(" %02x",
+ saa7114_read(client, i + j));
+ }
+ printk("\n");
+ }
+ }
+ break;
+
+ case DECODER_GET_CAPABILITIES:
+ {
+ struct video_decoder_capability *cap = arg;
+
+ dprintk(1, KERN_DEBUG "%s: decoder get capabilities\n",
+ I2C_NAME(client));
+
+ cap->flags = VIDEO_DECODER_PAL |
+ VIDEO_DECODER_NTSC |
+ VIDEO_DECODER_AUTO |
+ VIDEO_DECODER_CCIR;
+ cap->inputs = 8;
+ cap->outputs = 1;
+ }
+ break;
+
+ case DECODER_GET_STATUS:
+ {
+ int *iarg = arg;
+ int status;
+ int res;
+
+ status = saa7114_read(client, 0x1f);
+
+ dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
+ status);
+ res = 0;
+ if ((status & (1 << 6)) == 0) {
+ res |= DECODER_STATUS_GOOD;
+ }
+ switch (decoder->norm) {
+ case VIDEO_MODE_NTSC:
+ res |= DECODER_STATUS_NTSC;
+ break;
+ case VIDEO_MODE_PAL:
+ res |= DECODER_STATUS_PAL;
+ break;
+ case VIDEO_MODE_SECAM:
+ res |= DECODER_STATUS_SECAM;
+ break;
+ default:
+ case VIDEO_MODE_AUTO:
+ if ((status & (1 << 5)) != 0) {
+ res |= DECODER_STATUS_NTSC;
+ } else {
+ res |= DECODER_STATUS_PAL;
+ }
+ break;
+ }
+ if ((status & (1 << 0)) != 0) {
+ res |= DECODER_STATUS_COLOR;
+ }
+ *iarg = res;
+ }
+ break;
+
+ case DECODER_SET_NORM:
+ {
+ int *iarg = arg;
+
+ short int hoff = 0, voff = 0, w = 0, h = 0;
+
+ dprintk(1, KERN_DEBUG "%s: decoder set norm ",
+ I2C_NAME(client));
+ switch (*iarg) {
+
+ case VIDEO_MODE_NTSC:
+ dprintk(1, "NTSC\n");
+ decoder->reg[REG_ADDR(0x06)] =
+ SAA_7114_NTSC_HSYNC_START;
+ decoder->reg[REG_ADDR(0x07)] =
+ SAA_7114_NTSC_HSYNC_STOP;
+
+ decoder->reg[REG_ADDR(0x08)] = decoder->playback ? 0x7c : 0xb8; // PLL free when playback, PLL close when capture
+
+ decoder->reg[REG_ADDR(0x0e)] = 0x85;
+ decoder->reg[REG_ADDR(0x0f)] = 0x24;
+
+ hoff = SAA_7114_NTSC_HOFFSET;
+ voff = SAA_7114_NTSC_VOFFSET;
+ w = SAA_7114_NTSC_WIDTH;
+ h = SAA_7114_NTSC_HEIGHT;
+
+ break;
+
+ case VIDEO_MODE_PAL:
+ dprintk(1, "PAL\n");
+ decoder->reg[REG_ADDR(0x06)] =
+ SAA_7114_PAL_HSYNC_START;
+ decoder->reg[REG_ADDR(0x07)] =
+ SAA_7114_PAL_HSYNC_STOP;
+
+ decoder->reg[REG_ADDR(0x08)] = decoder->playback ? 0x7c : 0xb8; // PLL free when playback, PLL close when capture
+
+ decoder->reg[REG_ADDR(0x0e)] = 0x81;
+ decoder->reg[REG_ADDR(0x0f)] = 0x24;
+
+ hoff = SAA_7114_PAL_HOFFSET;
+ voff = SAA_7114_PAL_VOFFSET;
+ w = SAA_7114_PAL_WIDTH;
+ h = SAA_7114_PAL_HEIGHT;
+
+ break;
+
+ default:
+ dprintk(1, " Unknown video mode!!!\n");
+ return -EINVAL;
+
+ }
+
+
+ decoder->reg[REG_ADDR(0x94)] = LOBYTE(hoff); // hoffset low
+ decoder->reg[REG_ADDR(0x95)] = HIBYTE(hoff) & 0x0f; // hoffset high
+ decoder->reg[REG_ADDR(0x96)] = LOBYTE(w); // width low
+ decoder->reg[REG_ADDR(0x97)] = HIBYTE(w) & 0x0f; // width high
+ decoder->reg[REG_ADDR(0x98)] = LOBYTE(voff); // voffset low
+ decoder->reg[REG_ADDR(0x99)] = HIBYTE(voff) & 0x0f; // voffset high
+ decoder->reg[REG_ADDR(0x9a)] = LOBYTE(h + 2); // height low
+ decoder->reg[REG_ADDR(0x9b)] = HIBYTE(h + 2) & 0x0f; // height high
+ decoder->reg[REG_ADDR(0x9c)] = LOBYTE(w); // out width low
+ decoder->reg[REG_ADDR(0x9d)] = HIBYTE(w) & 0x0f; // out width high
+ decoder->reg[REG_ADDR(0x9e)] = LOBYTE(h); // out height low
+ decoder->reg[REG_ADDR(0x9f)] = HIBYTE(h) & 0x0f; // out height high
+
+ decoder->reg[REG_ADDR(0xc4)] = LOBYTE(hoff); // hoffset low
+ decoder->reg[REG_ADDR(0xc5)] = HIBYTE(hoff) & 0x0f; // hoffset high
+ decoder->reg[REG_ADDR(0xc6)] = LOBYTE(w); // width low
+ decoder->reg[REG_ADDR(0xc7)] = HIBYTE(w) & 0x0f; // width high
+ decoder->reg[REG_ADDR(0xc8)] = LOBYTE(voff); // voffset low
+ decoder->reg[REG_ADDR(0xc9)] = HIBYTE(voff) & 0x0f; // voffset high
+ decoder->reg[REG_ADDR(0xca)] = LOBYTE(h + 2); // height low
+ decoder->reg[REG_ADDR(0xcb)] = HIBYTE(h + 2) & 0x0f; // height high
+ decoder->reg[REG_ADDR(0xcc)] = LOBYTE(w); // out width low
+ decoder->reg[REG_ADDR(0xcd)] = HIBYTE(w) & 0x0f; // out width high
+ decoder->reg[REG_ADDR(0xce)] = LOBYTE(h); // out height low
+ decoder->reg[REG_ADDR(0xcf)] = HIBYTE(h) & 0x0f; // out height high
+
+
+ saa7114_write(client, 0x80, 0x06); // i-port and scaler back end clock selection, task A&B off
+ saa7114_write(client, 0x88, 0xd8); // sw reset scaler
+ saa7114_write(client, 0x88, 0xf8); // sw reset scaler release
+
+ saa7114_write_block(client, decoder->reg + (0x06 << 1),
+ 3 << 1);
+ saa7114_write_block(client, decoder->reg + (0x0e << 1),
+ 2 << 1);
+ saa7114_write_block(client, decoder->reg + (0x5a << 1),
+ 2 << 1);
+
+ saa7114_write_block(client, decoder->reg + (0x94 << 1),
+ (0x9f + 1 - 0x94) << 1);
+ saa7114_write_block(client, decoder->reg + (0xc4 << 1),
+ (0xcf + 1 - 0xc4) << 1);
+
+ saa7114_write(client, 0x88, 0xd8); // sw reset scaler
+ saa7114_write(client, 0x88, 0xf8); // sw reset scaler release
+ saa7114_write(client, 0x80, 0x36); // i-port and scaler back end clock selection
+
+ decoder->norm = *iarg;
+ }
+ break;
+
+ case DECODER_SET_INPUT:
+ {
+ int *iarg = arg;
+
+ dprintk(1, KERN_DEBUG "%s: decoder set input (%d)\n",
+ I2C_NAME(client), *iarg);
+ if (*iarg < 0 || *iarg > 7) {
+ return -EINVAL;
+ }
+
+ if (decoder->input != *iarg) {
+ dprintk(1, KERN_DEBUG "%s: now setting %s input\n",
+ I2C_NAME(client),
+ *iarg >= 6 ? "S-Video" : "Composite");
+ decoder->input = *iarg;
+
+ /* select mode */
+ decoder->reg[REG_ADDR(0x02)] =
+ (decoder->
+ reg[REG_ADDR(0x02)] & 0xf0) | (decoder->
+ input <
+ 6 ? 0x0 : 0x9);
+ saa7114_write(client, 0x02,
+ decoder->reg[REG_ADDR(0x02)]);
+
+ /* bypass chrominance trap for modes 6..9 */
+ decoder->reg[REG_ADDR(0x09)] =
+ (decoder->
+ reg[REG_ADDR(0x09)] & 0x7f) | (decoder->
+ input <
+ 6 ? 0x0 :
+ 0x80);
+ saa7114_write(client, 0x09,
+ decoder->reg[REG_ADDR(0x09)]);
+
+ decoder->reg[REG_ADDR(0x0e)] =
+ decoder->input <
+ 6 ? decoder->
+ reg[REG_ADDR(0x0e)] | 1 : decoder->
+ reg[REG_ADDR(0x0e)] & ~1;
+ saa7114_write(client, 0x0e,
+ decoder->reg[REG_ADDR(0x0e)]);
+ }
+ }
+ break;
+
+ case DECODER_SET_OUTPUT:
+ {
+ int *iarg = arg;
+
+ dprintk(1, KERN_DEBUG "%s: decoder set output\n",
+ I2C_NAME(client));
+
+ /* not much choice of outputs */
+ if (*iarg != 0) {
+ return -EINVAL;
+ }
+ }
+ break;
+
+ case DECODER_ENABLE_OUTPUT:
+ {
+ int *iarg = arg;
+ int enable = (*iarg != 0);
+
+ dprintk(1, KERN_DEBUG "%s: decoder %s output\n",
+ I2C_NAME(client), enable ? "enable" : "disable");
+
+ decoder->playback = !enable;
+
+ if (decoder->enable != enable) {
+ decoder->enable = enable;
+
+ /* RJ: If output should be disabled (for
+ * playing videos), we also need a open PLL.
+ * The input is set to 0 (where no input
+ * source is connected), although this
+ * is not necessary.
+ *
+ * If output should be enabled, we have to
+ * reverse the above.
+ */
+
+ if (decoder->enable) {
+ decoder->reg[REG_ADDR(0x08)] = 0xb8;
+ decoder->reg[REG_ADDR(0x12)] = 0xc9;
+ decoder->reg[REG_ADDR(0x13)] = 0x80;
+ decoder->reg[REG_ADDR(0x87)] = 0x01;
+ } else {
+ decoder->reg[REG_ADDR(0x08)] = 0x7c;
+ decoder->reg[REG_ADDR(0x12)] = 0x00;
+ decoder->reg[REG_ADDR(0x13)] = 0x00;
+ decoder->reg[REG_ADDR(0x87)] = 0x00;
+ }
+
+ saa7114_write_block(client,
+ decoder->reg + (0x12 << 1),
+ 2 << 1);
+ saa7114_write(client, 0x08,
+ decoder->reg[REG_ADDR(0x08)]);
+ saa7114_write(client, 0x87,
+ decoder->reg[REG_ADDR(0x87)]);
+ saa7114_write(client, 0x88, 0xd8); // sw reset scaler
+ saa7114_write(client, 0x88, 0xf8); // sw reset scaler release
+ saa7114_write(client, 0x80, 0x36);
+
+ }
+ }
+ break;
+
+ case DECODER_SET_PICTURE:
+ {
+ struct video_picture *pic = arg;
+
+ dprintk(1,
+ KERN_DEBUG
+ "%s: decoder set picture bright=%d contrast=%d saturation=%d hue=%d\n",
+ I2C_NAME(client), pic->brightness, pic->contrast,
+ pic->colour, pic->hue);
+
+ if (decoder->bright != pic->brightness) {
+ /* We want 0 to 255 we get 0-65535 */
+ decoder->bright = pic->brightness;
+ saa7114_write(client, 0x0a, decoder->bright >> 8);
+ }
+ if (decoder->contrast != pic->contrast) {
+ /* We want 0 to 127 we get 0-65535 */
+ decoder->contrast = pic->contrast;
+ saa7114_write(client, 0x0b,
+ decoder->contrast >> 9);
+ }
+ if (decoder->sat != pic->colour) {
+ /* We want 0 to 127 we get 0-65535 */
+ decoder->sat = pic->colour;
+ saa7114_write(client, 0x0c, decoder->sat >> 9);
+ }
+ if (decoder->hue != pic->hue) {
+ /* We want -128 to 127 we get 0-65535 */
+ decoder->hue = pic->hue;
+ saa7114_write(client, 0x0d,
+ (decoder->hue - 32768) >> 8);
+ }
+ }
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+/*
+ * Generic i2c probe
+ * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
+ */
+static unsigned short normal_i2c[] =
+ { I2C_SAA7114 >> 1, I2C_SAA7114A >> 1, I2C_CLIENT_END };
+static unsigned short normal_i2c_range[] = { I2C_CLIENT_END };
+
+static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
+static unsigned short force[2] = { I2C_CLIENT_END , I2C_CLIENT_END };
+
+static struct i2c_client_address_data addr_data = {
+ .normal_i2c = normal_i2c,
+ .normal_i2c_range = normal_i2c_range,
+ .probe = probe,
+ .probe_range = probe_range,
+ .ignore = ignore,
+ .ignore_range = ignore_range,
+ .force = force
+};
+
+static struct i2c_driver i2c_driver_saa7114;
+
+static int
+saa7114_detect_client (struct i2c_adapter *adapter,
+ int address,
+ int kind)
+{
+ int i, err[30];
+ short int hoff = SAA_7114_NTSC_HOFFSET;
+ short int voff = SAA_7114_NTSC_VOFFSET;
+ short int w = SAA_7114_NTSC_WIDTH;
+ short int h = SAA_7114_NTSC_HEIGHT;
+ struct i2c_client *client;
+ struct saa7114 *decoder;
+
+ dprintk(1,
+ KERN_INFO
+ "saa7114.c: detecting saa7114 client on address 0x%x\n",
+ address << 1);
+
+ /* Check if the adapter supports the needed features */
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return 0;
+
+ client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
+ if (client == 0)
+ return -ENOMEM;
+ memset(client, 0, sizeof(struct i2c_client));
+ client->addr = address;
+ client->adapter = adapter;
+ client->driver = &i2c_driver_saa7114;
+ client->flags = I2C_CLIENT_ALLOW_USE;
+ strlcpy(I2C_NAME(client), "saa7114", sizeof(I2C_NAME(client)));
+
+ decoder = kmalloc(sizeof(struct saa7114), GFP_KERNEL);
+ if (decoder == NULL) {
+ kfree(client);
+ return -ENOMEM;
+ }
+ memset(decoder, 0, sizeof(struct saa7114));
+ decoder->norm = VIDEO_MODE_NTSC;
+ decoder->input = -1;
+ decoder->enable = 1;
+ decoder->bright = 32768;
+ decoder->contrast = 32768;
+ decoder->hue = 32768;
+ decoder->sat = 32768;
+ decoder->playback = 0; // initially capture mode useda
+ i2c_set_clientdata(client, decoder);
+
+ memcpy(decoder->reg, init, sizeof(init));
+
+ decoder->reg[REG_ADDR(0x94)] = LOBYTE(hoff); // hoffset low
+ decoder->reg[REG_ADDR(0x95)] = HIBYTE(hoff) & 0x0f; // hoffset high
+ decoder->reg[REG_ADDR(0x96)] = LOBYTE(w); // width low
+ decoder->reg[REG_ADDR(0x97)] = HIBYTE(w) & 0x0f; // width high
+ decoder->reg[REG_ADDR(0x98)] = LOBYTE(voff); // voffset low
+ decoder->reg[REG_ADDR(0x99)] = HIBYTE(voff) & 0x0f; // voffset high
+ decoder->reg[REG_ADDR(0x9a)] = LOBYTE(h + 2); // height low
+ decoder->reg[REG_ADDR(0x9b)] = HIBYTE(h + 2) & 0x0f; // height high
+ decoder->reg[REG_ADDR(0x9c)] = LOBYTE(w); // out width low
+ decoder->reg[REG_ADDR(0x9d)] = HIBYTE(w) & 0x0f; // out width high
+ decoder->reg[REG_ADDR(0x9e)] = LOBYTE(h); // out height low
+ decoder->reg[REG_ADDR(0x9f)] = HIBYTE(h) & 0x0f; // out height high
+
+ decoder->reg[REG_ADDR(0xc4)] = LOBYTE(hoff); // hoffset low
+ decoder->reg[REG_ADDR(0xc5)] = HIBYTE(hoff) & 0x0f; // hoffset high
+ decoder->reg[REG_ADDR(0xc6)] = LOBYTE(w); // width low
+ decoder->reg[REG_ADDR(0xc7)] = HIBYTE(w) & 0x0f; // width high
+ decoder->reg[REG_ADDR(0xc8)] = LOBYTE(voff); // voffset low
+ decoder->reg[REG_ADDR(0xc9)] = HIBYTE(voff) & 0x0f; // voffset high
+ decoder->reg[REG_ADDR(0xca)] = LOBYTE(h + 2); // height low
+ decoder->reg[REG_ADDR(0xcb)] = HIBYTE(h + 2) & 0x0f; // height high
+ decoder->reg[REG_ADDR(0xcc)] = LOBYTE(w); // out width low
+ decoder->reg[REG_ADDR(0xcd)] = HIBYTE(w) & 0x0f; // out width high
+ decoder->reg[REG_ADDR(0xce)] = LOBYTE(h); // out height low
+ decoder->reg[REG_ADDR(0xcf)] = HIBYTE(h) & 0x0f; // out height high
+
+ decoder->reg[REG_ADDR(0xb8)] =
+ LOBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+ decoder->reg[REG_ADDR(0xb9)] =
+ HIBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+ decoder->reg[REG_ADDR(0xba)] =
+ LOBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+ decoder->reg[REG_ADDR(0xbb)] =
+ HIBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+
+ decoder->reg[REG_ADDR(0xbc)] =
+ LOBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+ decoder->reg[REG_ADDR(0xbd)] =
+ HIBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+ decoder->reg[REG_ADDR(0xbe)] =
+ LOBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+ decoder->reg[REG_ADDR(0xbf)] =
+ HIBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+
+ decoder->reg[REG_ADDR(0xe8)] =
+ LOBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+ decoder->reg[REG_ADDR(0xe9)] =
+ HIBYTE(LOWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+ decoder->reg[REG_ADDR(0xea)] =
+ LOBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+ decoder->reg[REG_ADDR(0xeb)] =
+ HIBYTE(HIWORD(SAA_7114_VERTICAL_CHROMA_OFFSET));
+
+ decoder->reg[REG_ADDR(0xec)] =
+ LOBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+ decoder->reg[REG_ADDR(0xed)] =
+ HIBYTE(LOWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+ decoder->reg[REG_ADDR(0xee)] =
+ LOBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+ decoder->reg[REG_ADDR(0xef)] =
+ HIBYTE(HIWORD(SAA_7114_VERTICAL_LUMA_OFFSET));
+
+
+ decoder->reg[REG_ADDR(0x13)] = 0x80; // RTC0 on
+ decoder->reg[REG_ADDR(0x87)] = 0x01; // I-Port
+ decoder->reg[REG_ADDR(0x12)] = 0xc9; // RTS0
+
+ decoder->reg[REG_ADDR(0x02)] = 0xc0; // set composite1 input, aveasy
+ decoder->reg[REG_ADDR(0x09)] = 0x00; // chrominance trap
+ decoder->reg[REG_ADDR(0x0e)] |= 1; // combfilter on
+
+
+ dprintk(1, KERN_DEBUG "%s_attach: starting decoder init\n",
+ I2C_NAME(client));
+
+ err[0] =
+ saa7114_write_block(client, decoder->reg + (0x20 << 1),
+ 0x10 << 1);
+ err[1] =
+ saa7114_write_block(client, decoder->reg + (0x30 << 1),
+ 0x10 << 1);
+ err[2] =
+ saa7114_write_block(client, decoder->reg + (0x63 << 1),
+ (0x7f + 1 - 0x63) << 1);
+ err[3] =
+ saa7114_write_block(client, decoder->reg + (0x89 << 1),
+ 6 << 1);
+ err[4] =
+ saa7114_write_block(client, decoder->reg + (0xb8 << 1),
+ 8 << 1);
+ err[5] =
+ saa7114_write_block(client, decoder->reg + (0xe8 << 1),
+ 8 << 1);
+
+
+ for (i = 0; i <= 5; i++) {
+ if (err[i] < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s_attach: init error %d at stage %d, leaving attach.\n",
+ I2C_NAME(client), i, err[i]);
+ kfree(decoder);
+ kfree(client);
+ return 0;
+ }
+ }
+
+ for (i = 6; i < 8; i++) {
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: reg[0x%02x] = 0x%02x (0x%02x)\n",
+ I2C_NAME(client), i, saa7114_read(client, i),
+ decoder->reg[REG_ADDR(i)]);
+ }
+
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: performing decoder reset sequence\n",
+ I2C_NAME(client));
+
+ err[6] = saa7114_write(client, 0x80, 0x06); // i-port and scaler backend clock selection, task A&B off
+ err[7] = saa7114_write(client, 0x88, 0xd8); // sw reset scaler
+ err[8] = saa7114_write(client, 0x88, 0xf8); // sw reset scaler release
+
+ for (i = 6; i <= 8; i++) {
+ if (err[i] < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s_attach: init error %d at stage %d, leaving attach.\n",
+ I2C_NAME(client), i, err[i]);
+ kfree(decoder);
+ kfree(client);
+ return 0;
+ }
+ }
+
+ dprintk(1, KERN_INFO "%s_attach: performing the rest of init\n",
+ I2C_NAME(client));
+
+
+ err[9] = saa7114_write(client, 0x01, decoder->reg[REG_ADDR(0x01)]);
+ err[10] = saa7114_write_block(client, decoder->reg + (0x03 << 1), (0x1e + 1 - 0x03) << 1); // big seq
+ err[11] = saa7114_write_block(client, decoder->reg + (0x40 << 1), (0x5f + 1 - 0x40) << 1); // slicer
+ err[12] = saa7114_write_block(client, decoder->reg + (0x81 << 1), 2 << 1); // ?
+ err[13] = saa7114_write_block(client, decoder->reg + (0x83 << 1), 5 << 1); // ?
+ err[14] = saa7114_write_block(client, decoder->reg + (0x90 << 1), 4 << 1); // Task A
+ err[15] =
+ saa7114_write_block(client, decoder->reg + (0x94 << 1),
+ 12 << 1);
+ err[16] =
+ saa7114_write_block(client, decoder->reg + (0xa0 << 1),
+ 8 << 1);
+ err[17] =
+ saa7114_write_block(client, decoder->reg + (0xa8 << 1),
+ 8 << 1);
+ err[18] =
+ saa7114_write_block(client, decoder->reg + (0xb0 << 1),
+ 8 << 1);
+ err[19] = saa7114_write_block(client, decoder->reg + (0xc0 << 1), 4 << 1); // Task B
+ err[15] =
+ saa7114_write_block(client, decoder->reg + (0xc4 << 1),
+ 12 << 1);
+ err[16] =
+ saa7114_write_block(client, decoder->reg + (0xd0 << 1),
+ 8 << 1);
+ err[17] =
+ saa7114_write_block(client, decoder->reg + (0xd8 << 1),
+ 8 << 1);
+ err[18] =
+ saa7114_write_block(client, decoder->reg + (0xe0 << 1),
+ 8 << 1);
+
+ for (i = 9; i <= 18; i++) {
+ if (err[i] < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s_attach: init error %d at stage %d, leaving attach.\n",
+ I2C_NAME(client), i, err[i]);
+ kfree(decoder);
+ kfree(client);
+ return 0;
+ }
+ }
+
+
+ for (i = 6; i < 8; i++) {
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: reg[0x%02x] = 0x%02x (0x%02x)\n",
+ I2C_NAME(client), i, saa7114_read(client, i),
+ decoder->reg[REG_ADDR(i)]);
+ }
+
+
+ for (i = 0x11; i <= 0x13; i++) {
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: reg[0x%02x] = 0x%02x (0x%02x)\n",
+ I2C_NAME(client), i, saa7114_read(client, i),
+ decoder->reg[REG_ADDR(i)]);
+ }
+
+
+ dprintk(1, KERN_DEBUG "%s_attach: setting video input\n",
+ I2C_NAME(client));
+
+ err[19] =
+ saa7114_write(client, 0x02, decoder->reg[REG_ADDR(0x02)]);
+ err[20] =
+ saa7114_write(client, 0x09, decoder->reg[REG_ADDR(0x09)]);
+ err[21] =
+ saa7114_write(client, 0x0e, decoder->reg[REG_ADDR(0x0e)]);
+
+ for (i = 19; i <= 21; i++) {
+ if (err[i] < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s_attach: init error %d at stage %d, leaving attach.\n",
+ I2C_NAME(client), i, err[i]);
+ kfree(decoder);
+ kfree(client);
+ return 0;
+ }
+ }
+
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: performing decoder reset sequence\n",
+ I2C_NAME(client));
+
+ err[22] = saa7114_write(client, 0x88, 0xd8); // sw reset scaler
+ err[23] = saa7114_write(client, 0x88, 0xf8); // sw reset scaler release
+ err[24] = saa7114_write(client, 0x80, 0x36); // i-port and scaler backend clock selection, task A&B off
+
+
+ for (i = 22; i <= 24; i++) {
+ if (err[i] < 0) {
+ dprintk(1,
+ KERN_ERR
+ "%s_attach: init error %d at stage %d, leaving attach.\n",
+ I2C_NAME(client), i, err[i]);
+ kfree(decoder);
+ kfree(client);
+ return 0;
+ }
+ }
+
+ err[25] = saa7114_write(client, 0x06, init[REG_ADDR(0x06)]);
+ err[26] = saa7114_write(client, 0x07, init[REG_ADDR(0x07)]);
+ err[27] = saa7114_write(client, 0x10, init[REG_ADDR(0x10)]);
+
+ dprintk(1,
+ KERN_INFO
+ "%s_attach: chip version %x, decoder status 0x%02x\n",
+ I2C_NAME(client), saa7114_read(client, 0x00) >> 4,
+ saa7114_read(client, 0x1f));
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: power save control: 0x%02x, scaler status: 0x%02x\n",
+ I2C_NAME(client), saa7114_read(client, 0x88),
+ saa7114_read(client, 0x8f));
+
+
+ for (i = 0x94; i < 0x96; i++) {
+ dprintk(1,
+ KERN_DEBUG
+ "%s_attach: reg[0x%02x] = 0x%02x (0x%02x)\n",
+ I2C_NAME(client), i, saa7114_read(client, i),
+ decoder->reg[REG_ADDR(i)]);
+ }
+
+ i = i2c_attach_client(client);
+ if (i) {
+ kfree(client);
+ kfree(decoder);
+ return i;
+ }
+
+ //i = saa7114_write_block(client, init, sizeof(init));
+ i = 0;
+ if (i < 0) {
+ dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
+ I2C_NAME(client), i);
+ } else {
+ dprintk(1,
+ KERN_INFO
+ "%s_attach: chip version %x at address 0x%x\n",
+ I2C_NAME(client), saa7114_read(client, 0x00) >> 4,
+ client->addr << 1);
+ }
+
+ return 0;
+}
+
+static int
+saa7114_attach_adapter (struct i2c_adapter *adapter)
+{
+ dprintk(1,
+ KERN_INFO
+ "saa7114.c: starting probe for adapter %s (0x%x)\n",
+ I2C_NAME(adapter), adapter->id);
+ return i2c_probe(adapter, &addr_data, &saa7114_detect_client);
+}
+
+static int
+saa7114_detach_client (struct i2c_client *client)
+{
+ struct saa7114 *decoder = i2c_get_clientdata(client);
+ int err;
+
+ err = i2c_detach_client(client);
+ if (err) {
+ return err;
+ }
+
+ kfree(decoder);
+ kfree(client);
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct i2c_driver i2c_driver_saa7114 = {
+ .owner = THIS_MODULE,
+ .name = "saa7114",
+
+ .id = I2C_DRIVERID_SAA7114,
+ .flags = I2C_DF_NOTIFY,
+
+ .attach_adapter = saa7114_attach_adapter,
+ .detach_client = saa7114_detach_client,
+ .command = saa7114_command,
+};
+
+static int __init
+saa7114_init (void)
+{
+ return i2c_add_driver(&i2c_driver_saa7114);
+}
+
+static void __exit
+saa7114_exit (void)
+{
+ i2c_del_driver(&i2c_driver_saa7114);
+}
+
+module_init(saa7114_init);
+module_exit(saa7114_exit);
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