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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [media/] [video/] [saa7185.c] - Blame information for rev 78

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/*
 * saa7185 - Philips SAA7185B video encoder driver version 0.0.3
 *
 * 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/signal.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/uaccess.h>
 
#include <linux/videodev.h>
#include <linux/video_encoder.h>
 
MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");
 
 
#define I2C_NAME(s) (s)->name
 
 
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 saa7185 {
        unsigned char reg[128];
 
        int norm;
        int enable;
        int bright;
        int contrast;
        int hue;
        int sat;
};
 
#define   I2C_SAA7185        0x88
 
/* ----------------------------------------------------------------------- */
 
static inline int
saa7185_read (struct i2c_client *client)
{
        return i2c_smbus_read_byte(client);
}
 
static int
saa7185_write (struct i2c_client *client,
               u8                 reg,
               u8                 value)
{
        struct saa7185 *encoder = i2c_get_clientdata(client);
 
        dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value);
        encoder->reg[reg] = value;
        return i2c_smbus_write_byte_data(client, reg, value);
}
 
static int
saa7185_write_block (struct i2c_client *client,
                     const u8          *data,
                     unsigned int       len)
{
        int ret = -1;
        u8 reg;
 
        /* the adv7175 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 saa7185 *encoder = i2c_get_clientdata(client);
                u8 block_data[32];
                int block_len;
 
                while (len >= 2) {
                        block_len = 0;
                        block_data[block_len++] = reg = data[0];
                        do {
                                block_data[block_len++] =
                                    encoder->reg[reg++] = data[1];
                                len -= 2;
                                data += 2;
                        } while (len >= 2 && data[0] == reg &&
                                 block_len < 32);
                        if ((ret = i2c_master_send(client, block_data,
                                                   block_len)) < 0)
                                break;
                }
        } else {
                /* do some slow I2C emulation kind of thing */
                while (len >= 2) {
                        reg = *data++;
                        if ((ret = saa7185_write(client, reg,
                                                 *data++)) < 0)
                                break;
                        len -= 2;
                }
        }
 
        return ret;
}
 
/* ----------------------------------------------------------------------- */
 
static const unsigned char init_common[] = {
        0x3a, 0x0f,             /* CBENB=0, V656=0, VY2C=1,
                                 * YUV2C=1, MY2C=1, MUV2C=1 */
 
        0x42, 0x6b,             /* OVLY0=107 */
        0x43, 0x00,             /* OVLU0=0     white */
        0x44, 0x00,             /* OVLV0=0   */
        0x45, 0x22,             /* OVLY1=34  */
        0x46, 0xac,             /* OVLU1=172   yellow */
        0x47, 0x0e,             /* OVLV1=14  */
        0x48, 0x03,             /* OVLY2=3   */
        0x49, 0x1d,             /* OVLU2=29    cyan */
        0x4a, 0xac,             /* OVLV2=172 */
        0x4b, 0xf0,             /* OVLY3=240 */
        0x4c, 0xc8,             /* OVLU3=200   green */
        0x4d, 0xb9,             /* OVLV3=185 */
        0x4e, 0xd4,             /* OVLY4=212 */
        0x4f, 0x38,             /* OVLU4=56    magenta */
        0x50, 0x47,             /* OVLV4=71  */
        0x51, 0xc1,             /* OVLY5=193 */
        0x52, 0xe3,             /* OVLU5=227   red */
        0x53, 0x54,             /* OVLV5=84  */
        0x54, 0xa3,             /* OVLY6=163 */
        0x55, 0x54,             /* OVLU6=84    blue */
        0x56, 0xf2,             /* OVLV6=242 */
        0x57, 0x90,             /* OVLY7=144 */
        0x58, 0x00,             /* OVLU7=0     black */
        0x59, 0x00,             /* OVLV7=0   */
 
        0x5a, 0x00,             /* CHPS=0    */
        0x5b, 0x76,             /* GAINU=118 */
        0x5c, 0xa5,             /* GAINV=165 */
        0x5d, 0x3c,             /* BLCKL=60  */
        0x5e, 0x3a,             /* BLNNL=58  */
        0x5f, 0x3a,             /* CCRS=0, BLNVB=58 */
        0x60, 0x00,             /* NULL      */
 
        /* 0x61 - 0x66 set according to norm */
 
        0x67, 0x00,             /* 0 : caption 1st byte odd  field */
        0x68, 0x00,             /* 0 : caption 2nd byte odd  field */
        0x69, 0x00,             /* 0 : caption 1st byte even field */
        0x6a, 0x00,             /* 0 : caption 2nd byte even field */
 
        0x6b, 0x91,             /* MODIN=2, PCREF=0, SCCLN=17 */
        0x6c, 0x20,             /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,
                                 * CBLF=0, ORCV2=0, PRCV2=0 */
        0x6d, 0x00,             /* SRCM1=0, CCEN=0 */
 
        0x6e, 0x0e,             /* HTRIG=0x005, approx. centered, at
                                 * least for PAL */
        0x6f, 0x00,             /* HTRIG upper bits */
        0x70, 0x20,             /* PHRES=0, SBLN=1, VTRIG=0 */
 
        /* The following should not be needed */
 
        0x71, 0x15,             /* BMRQ=0x115 */
        0x72, 0x90,             /* EMRQ=0x690 */
        0x73, 0x61,             /* EMRQ=0x690, BMRQ=0x115 */
        0x74, 0x00,             /* NULL       */
        0x75, 0x00,             /* NULL       */
        0x76, 0x00,             /* NULL       */
        0x77, 0x15,             /* BRCV=0x115 */
        0x78, 0x90,             /* ERCV=0x690 */
        0x79, 0x61,             /* ERCV=0x690, BRCV=0x115 */
 
        /* Field length controls */
 
        0x7a, 0x70,             /* FLC=0 */
 
        /* The following should not be needed if SBLN = 1 */
 
        0x7b, 0x16,             /* FAL=22 */
        0x7c, 0x35,             /* LAL=244 */
        0x7d, 0x20,             /* LAL=244, FAL=22 */
};
 
static const unsigned char init_pal[] = {
        0x61, 0x1e,             /* FISE=0, PAL=1, SCBW=1, RTCE=1,
                                 * YGS=1, INPI=0, DOWN=0 */
        0x62, 0xc8,             /* DECTYP=1, BSTA=72 */
        0x63, 0xcb,             /* FSC0 */
        0x64, 0x8a,             /* FSC1 */
        0x65, 0x09,             /* FSC2 */
        0x66, 0x2a,             /* FSC3 */
};
 
static const unsigned char init_ntsc[] = {
        0x61, 0x1d,             /* FISE=1, PAL=0, SCBW=1, RTCE=1,
                                 * YGS=1, INPI=0, DOWN=0 */
        0x62, 0xe6,             /* DECTYP=1, BSTA=102 */
        0x63, 0x1f,             /* FSC0 */
        0x64, 0x7c,             /* FSC1 */
        0x65, 0xf0,             /* FSC2 */
        0x66, 0x21,             /* FSC3 */
};
 
static int
saa7185_command (struct i2c_client *client,
                 unsigned int       cmd,
                 void              *arg)
{
        struct saa7185 *encoder = i2c_get_clientdata(client);
 
        switch (cmd) {
 
        case 0:
                saa7185_write_block(client, init_common,
                                    sizeof(init_common));
                switch (encoder->norm) {
 
                case VIDEO_MODE_NTSC:
                        saa7185_write_block(client, init_ntsc,
                                            sizeof(init_ntsc));
                        break;
 
                case VIDEO_MODE_PAL:
                        saa7185_write_block(client, init_pal,
                                            sizeof(init_pal));
                        break;
                }
 
                break;
 
        case ENCODER_GET_CAPABILITIES:
        {
                struct video_encoder_capability *cap = arg;
 
                cap->flags =
                    VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC |
                    VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR;
                cap->inputs = 1;
                cap->outputs = 1;
        }
                break;
 
        case ENCODER_SET_NORM:
        {
                int *iarg = arg;
 
                //saa7185_write_block(client, init_common, sizeof(init_common));
 
                switch (*iarg) {
 
                case VIDEO_MODE_NTSC:
                        saa7185_write_block(client, init_ntsc,
                                            sizeof(init_ntsc));
                        break;
 
                case VIDEO_MODE_PAL:
                        saa7185_write_block(client, init_pal,
                                            sizeof(init_pal));
                        break;
 
                case VIDEO_MODE_SECAM:
                default:
                        return -EINVAL;
 
                }
                encoder->norm = *iarg;
        }
                break;
 
        case ENCODER_SET_INPUT:
        {
                int *iarg = arg;
 
                /* RJ: *iarg = 0: input is from SA7111
                 *iarg = 1: input is from ZR36060 */
 
                switch (*iarg) {
 
                case 0:
                        /* Switch RTCE to 1 */
                        saa7185_write(client, 0x61,
                                      (encoder->reg[0x61] & 0xf7) | 0x08);
                        saa7185_write(client, 0x6e, 0x01);
                        break;
 
                case 1:
                        /* Switch RTCE to 0 */
                        saa7185_write(client, 0x61,
                                      (encoder->reg[0x61] & 0xf7) | 0x00);
                        /* SW: a slight sync problem... */
                        saa7185_write(client, 0x6e, 0x00);
                        break;
 
                default:
                        return -EINVAL;
 
                }
        }
                break;
 
        case ENCODER_SET_OUTPUT:
        {
                int *iarg = arg;
 
                /* not much choice of outputs */
                if (*iarg != 0) {
                        return -EINVAL;
                }
        }
                break;
 
        case ENCODER_ENABLE_OUTPUT:
        {
                int *iarg = arg;
 
                encoder->enable = !!*iarg;
                saa7185_write(client, 0x61,
                              (encoder->reg[0x61] & 0xbf) |
                              (encoder->enable ? 0x00 : 0x40));
        }
                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_SAA7185 >> 1, I2C_CLIENT_END };
 
static unsigned short ignore = I2C_CLIENT_END;
 
static struct i2c_client_address_data addr_data = {
        .normal_i2c             = normal_i2c,
        .probe                  = &ignore,
        .ignore                 = &ignore,
};
 
static struct i2c_driver i2c_driver_saa7185;
 
static int
saa7185_detect_client (struct i2c_adapter *adapter,
                       int                 address,
                       int                 kind)
{
        int i;
        struct i2c_client *client;
        struct saa7185 *encoder;
 
        dprintk(1,
                KERN_INFO
                "saa7185.c: detecting saa7185 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 = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
        if (client == 0)
                return -ENOMEM;
        client->addr = address;
        client->adapter = adapter;
        client->driver = &i2c_driver_saa7185;
        strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));
 
        encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL);
        if (encoder == NULL) {
                kfree(client);
                return -ENOMEM;
        }
        encoder->norm = VIDEO_MODE_NTSC;
        encoder->enable = 1;
        i2c_set_clientdata(client, encoder);
 
        i = i2c_attach_client(client);
        if (i) {
                kfree(client);
                kfree(encoder);
                return i;
        }
 
        i = saa7185_write_block(client, init_common, sizeof(init_common));
        if (i >= 0) {
                i = saa7185_write_block(client, init_ntsc,
                                        sizeof(init_ntsc));
        }
        if (i < 0) {
                dprintk(1, KERN_ERR "%s_attach: init error %d\n",
                        I2C_NAME(client), i);
        } else {
                dprintk(1,
                        KERN_INFO
                        "%s_attach: chip version %d at address 0x%x\n",
                        I2C_NAME(client), saa7185_read(client) >> 5,
                        client->addr << 1);
        }
 
        return 0;
}
 
static int
saa7185_attach_adapter (struct i2c_adapter *adapter)
{
        dprintk(1,
                KERN_INFO
                "saa7185.c: starting probe for adapter %s (0x%x)\n",
                I2C_NAME(adapter), adapter->id);
        return i2c_probe(adapter, &addr_data, &saa7185_detect_client);
}
 
static int
saa7185_detach_client (struct i2c_client *client)
{
        struct saa7185 *encoder = i2c_get_clientdata(client);
        int err;
 
        err = i2c_detach_client(client);
        if (err) {
                return err;
        }
 
        saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40);       /* SW: output off is active */
        //saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */
 
        kfree(encoder);
        kfree(client);
 
        return 0;
}
 
/* ----------------------------------------------------------------------- */
 
static struct i2c_driver i2c_driver_saa7185 = {
        .driver = {
                .name = "saa7185",      /* name */
        },
 
        .id = I2C_DRIVERID_SAA7185B,
 
        .attach_adapter = saa7185_attach_adapter,
        .detach_client = saa7185_detach_client,
        .command = saa7185_command,
};
 
static int __init
saa7185_init (void)
{
        return i2c_add_driver(&i2c_driver_saa7185);
}
 
static void __exit
saa7185_exit (void)
{
        i2c_del_driver(&i2c_driver_saa7185);
}
 
module_init(saa7185_init);
module_exit(saa7185_exit);

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[/] [test_project/] [trunk/] [linux_sd_driver/] [drivers/] [media/] [video/] [saa7185.c] - Blame information for rev 78

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* saa7185 - Philips SAA7185B video encoder driver version 0.0.3`
3			`*`
4			`* Copyright (C) 1998 Dave Perks <dperks@ibm.net>`
5			`*`
6			`* Slight changes for video timing and attachment output by`
7			`* Wolfgang Scherr <scherr@net4you.net>`
8			`*`
9			`* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>`
10			`* - moved over to linux>=2.4.x i2c protocol (1/1/2003)`
11			`*`
12			`* This program is free software; you can redistribute it and/or modify`
13			`* it under the terms of the GNU General Public License as published by`
14			`* the Free Software Foundation; either version 2 of the License, or`
15			`* (at your option) any later version.`
16			`*`
17			`* This program is distributed in the hope that it will be useful,`
18			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
19			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
20			`* GNU General Public License for more details.`
21			`*`
22			`* You should have received a copy of the GNU General Public License`
23			`* along with this program; if not, write to the Free Software`
24			`* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.`
25			`*/`
26
27			`#include <linux/module.h>`
28			`#include <linux/init.h>`
29			`#include <linux/delay.h>`
30			`#include <linux/errno.h>`
31			`#include <linux/fs.h>`
32			`#include <linux/kernel.h>`
33			`#include <linux/major.h>`
34			`#include <linux/slab.h>`
35			`#include <linux/mm.h>`
36			`#include <linux/signal.h>`
37			`#include <linux/types.h>`
38			`#include <linux/i2c.h>`
39			`#include <asm/io.h>`
40			`#include <asm/pgtable.h>`
41			`#include <asm/page.h>`
42			`#include <asm/uaccess.h>`
43
44			`#include <linux/videodev.h>`
45			`#include <linux/video_encoder.h>`
46
47			`MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");`
48			`MODULE_AUTHOR("Dave Perks");`
49			`MODULE_LICENSE("GPL");`
50
51
52			`#define I2C_NAME(s) (s)->name`
53
54
55			`static int debug = 0;`
56			`module_param(debug, int, 0);`
57			`MODULE_PARM_DESC(debug, "Debug level (0-1)");`
58
59			`#define dprintk(num, format, args...) \`
60			`do { \`
61			`if (debug >= num) \`
62			`printk(format, ##args); \`
63			`} while (0)`
64
65			`/* ----------------------------------------------------------------------- */`
66
67			`struct saa7185 {`
68			`unsigned char reg[128];`
69
70			`int norm;`
71			`int enable;`
72			`int bright;`
73			`int contrast;`
74			`int hue;`
75			`int sat;`
76			`};`
77
78			`#define I2C_SAA7185 0x88`
79
80			`/* ----------------------------------------------------------------------- */`
81
82			`static inline int`
83			`saa7185_read (struct i2c_client *client)`
84			`{`
85			`return i2c_smbus_read_byte(client);`
86			`}`
87
88			`static int`
89			`saa7185_write (struct i2c_client *client,`
90			`u8 reg,`
91			`u8 value)`
92			`{`
93			`struct saa7185 *encoder = i2c_get_clientdata(client);`
94
95			`dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value);`
96			`encoder->reg[reg] = value;`
97			`return i2c_smbus_write_byte_data(client, reg, value);`
98			`}`
99
100			`static int`
101			`saa7185_write_block (struct i2c_client *client,`
102			`const u8 *data,`
103			`unsigned int len)`
104			`{`
105			`int ret = -1;`
106			`u8 reg;`
107
108			`/* the adv7175 has an autoincrement function, use it if`
109			`* the adapter understands raw I2C */`
110			`if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {`
111			`/* do raw I2C, not smbus compatible */`
112			`struct saa7185 *encoder = i2c_get_clientdata(client);`
113			`u8 block_data[32];`
114			`int block_len;`
115
116			`while (len >= 2) {`
117			`block_len = 0;`
118			`block_data[block_len++] = reg = data[0];`
119			`do {`
120			`block_data[block_len++] =`
121			`encoder->reg[reg++] = data[1];`
122			`len -= 2;`
123			`data += 2;`
124			`} while (len >= 2 && data[0] == reg &&`
125			`block_len < 32);`
126			`if ((ret = i2c_master_send(client, block_data,`
127			`block_len)) < 0)`
128			`break;`
129			`}`
130			`} else {`
131			`/* do some slow I2C emulation kind of thing */`
132			`while (len >= 2) {`
133			`reg = *data++;`
134			`if ((ret = saa7185_write(client, reg,`
135			`*data++)) < 0)`
136			`break;`
137			`len -= 2;`
138			`}`
139			`}`
140
141			`return ret;`
142			`}`
143
144			`/* ----------------------------------------------------------------------- */`
145
146			`static const unsigned char init_common[] = {`
147			`0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1,`
148			`* YUV2C=1, MY2C=1, MUV2C=1 */`
149
150			`0x42, 0x6b, /* OVLY0=107 */`
151			`0x43, 0x00, /* OVLU0=0 white */`
152			`0x44, 0x00, /* OVLV0=0 */`
153			`0x45, 0x22, /* OVLY1=34 */`
154			`0x46, 0xac, /* OVLU1=172 yellow */`
155			`0x47, 0x0e, /* OVLV1=14 */`
156			`0x48, 0x03, /* OVLY2=3 */`
157			`0x49, 0x1d, /* OVLU2=29 cyan */`
158			`0x4a, 0xac, /* OVLV2=172 */`
159			`0x4b, 0xf0, /* OVLY3=240 */`
160			`0x4c, 0xc8, /* OVLU3=200 green */`
161			`0x4d, 0xb9, /* OVLV3=185 */`
162			`0x4e, 0xd4, /* OVLY4=212 */`
163			`0x4f, 0x38, /* OVLU4=56 magenta */`
164			`0x50, 0x47, /* OVLV4=71 */`
165			`0x51, 0xc1, /* OVLY5=193 */`
166			`0x52, 0xe3, /* OVLU5=227 red */`
167			`0x53, 0x54, /* OVLV5=84 */`
168			`0x54, 0xa3, /* OVLY6=163 */`
169			`0x55, 0x54, /* OVLU6=84 blue */`
170			`0x56, 0xf2, /* OVLV6=242 */`
171			`0x57, 0x90, /* OVLY7=144 */`
172			`0x58, 0x00, /* OVLU7=0 black */`
173			`0x59, 0x00, /* OVLV7=0 */`
174
175			`0x5a, 0x00, /* CHPS=0 */`
176			`0x5b, 0x76, /* GAINU=118 */`
177			`0x5c, 0xa5, /* GAINV=165 */`
178			`0x5d, 0x3c, /* BLCKL=60 */`
179			`0x5e, 0x3a, /* BLNNL=58 */`
180			`0x5f, 0x3a, /* CCRS=0, BLNVB=58 */`
181			`0x60, 0x00, /* NULL */`
182
183			`/* 0x61 - 0x66 set according to norm */`
184
185			`0x67, 0x00, /* 0 : caption 1st byte odd field */`
186			`0x68, 0x00, /* 0 : caption 2nd byte odd field */`
187			`0x69, 0x00, /* 0 : caption 1st byte even field */`
188			`0x6a, 0x00, /* 0 : caption 2nd byte even field */`
189
190			`0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */`
191			`0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,`
192			`* CBLF=0, ORCV2=0, PRCV2=0 */`
193			`0x6d, 0x00, /* SRCM1=0, CCEN=0 */`
194
195			`0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at`
196			`* least for PAL */`
197			`0x6f, 0x00, /* HTRIG upper bits */`
198			`0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */`
199
200			`/* The following should not be needed */`
201
202			`0x71, 0x15, /* BMRQ=0x115 */`
203			`0x72, 0x90, /* EMRQ=0x690 */`
204			`0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */`
205			`0x74, 0x00, /* NULL */`
206			`0x75, 0x00, /* NULL */`
207			`0x76, 0x00, /* NULL */`
208			`0x77, 0x15, /* BRCV=0x115 */`
209			`0x78, 0x90, /* ERCV=0x690 */`
210			`0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */`
211
212			`/* Field length controls */`
213
214			`0x7a, 0x70, /* FLC=0 */`
215
216			`/* The following should not be needed if SBLN = 1 */`
217
218			`0x7b, 0x16, /* FAL=22 */`
219			`0x7c, 0x35, /* LAL=244 */`
220			`0x7d, 0x20, /* LAL=244, FAL=22 */`
221			`};`
222
223			`static const unsigned char init_pal[] = {`
224			`0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1,`
225			`* YGS=1, INPI=0, DOWN=0 */`
226			`0x62, 0xc8, /* DECTYP=1, BSTA=72 */`
227			`0x63, 0xcb, /* FSC0 */`
228			`0x64, 0x8a, /* FSC1 */`
229			`0x65, 0x09, /* FSC2 */`
230			`0x66, 0x2a, /* FSC3 */`
231			`};`
232
233			`static const unsigned char init_ntsc[] = {`
234			`0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1,`
235			`* YGS=1, INPI=0, DOWN=0 */`
236			`0x62, 0xe6, /* DECTYP=1, BSTA=102 */`
237			`0x63, 0x1f, /* FSC0 */`
238			`0x64, 0x7c, /* FSC1 */`
239			`0x65, 0xf0, /* FSC2 */`
240			`0x66, 0x21, /* FSC3 */`
241			`};`
242
243			`static int`
244			`saa7185_command (struct i2c_client *client,`
245			`unsigned int cmd,`
246			`void *arg)`
247			`{`
248			`struct saa7185 *encoder = i2c_get_clientdata(client);`
249
250			`switch (cmd) {`
251
252			`case 0:`
253			`saa7185_write_block(client, init_common,`
254			`sizeof(init_common));`
255			`switch (encoder->norm) {`
256
257			`case VIDEO_MODE_NTSC:`
258			`saa7185_write_block(client, init_ntsc,`
259			`sizeof(init_ntsc));`
260			`break;`
261
262			`case VIDEO_MODE_PAL:`
263			`saa7185_write_block(client, init_pal,`
264			`sizeof(init_pal));`
265			`break;`
266			`}`
267
268			`break;`
269
270			`case ENCODER_GET_CAPABILITIES:`
271			`{`
272			`struct video_encoder_capability *cap = arg;`
273
274			`cap->flags =`
275			`VIDEO_ENCODER_PAL \| VIDEO_ENCODER_NTSC \|`
276			`VIDEO_ENCODER_SECAM \| VIDEO_ENCODER_CCIR;`
277			`cap->inputs = 1;`
278			`cap->outputs = 1;`
279			`}`
280			`break;`
281
282			`case ENCODER_SET_NORM:`
283			`{`
284			`int *iarg = arg;`
285
286			`//saa7185_write_block(client, init_common, sizeof(init_common));`
287
288			`switch (*iarg) {`
289
290			`case VIDEO_MODE_NTSC:`
291			`saa7185_write_block(client, init_ntsc,`
292			`sizeof(init_ntsc));`
293			`break;`
294
295			`case VIDEO_MODE_PAL:`
296			`saa7185_write_block(client, init_pal,`
297			`sizeof(init_pal));`
298			`break;`
299
300			`case VIDEO_MODE_SECAM:`
301			`default:`
302			`return -EINVAL;`
303
304			`}`
305			`encoder->norm = *iarg;`
306			`}`
307			`break;`
308
309			`case ENCODER_SET_INPUT:`
310			`{`
311			`int *iarg = arg;`
312
313			`/* RJ: *iarg = 0: input is from SA7111`
314			`iarg = 1: input is from ZR36060 /`
315
316			`switch (*iarg) {`
317
318			`case 0:`
319			`/* Switch RTCE to 1 */`
320			`saa7185_write(client, 0x61,`
321			`(encoder->reg[0x61] & 0xf7) \| 0x08);`
322			`saa7185_write(client, 0x6e, 0x01);`
323			`break;`
324
325			`case 1:`
326			`/* Switch RTCE to 0 */`
327			`saa7185_write(client, 0x61,`
328			`(encoder->reg[0x61] & 0xf7) \| 0x00);`
329			`/* SW: a slight sync problem... */`
330			`saa7185_write(client, 0x6e, 0x00);`
331			`break;`
332
333			`default:`
334			`return -EINVAL;`
335
336			`}`
337			`}`
338			`break;`
339
340			`case ENCODER_SET_OUTPUT:`
341			`{`
342			`int *iarg = arg;`
343
344			`/* not much choice of outputs */`
345			`if (*iarg != 0) {`
346			`return -EINVAL;`
347			`}`
348			`}`
349			`break;`
350
351			`case ENCODER_ENABLE_OUTPUT:`
352			`{`
353			`int *iarg = arg;`
354
355			`encoder->enable = !!*iarg;`
356			`saa7185_write(client, 0x61,`
357			`(encoder->reg[0x61] & 0xbf) \|`
358			`(encoder->enable ? 0x00 : 0x40));`
359			`}`
360			`break;`
361
362			`default:`
363			`return -EINVAL;`
364			`}`
365
366			`return 0;`
367			`}`
368
369			`/* ----------------------------------------------------------------------- */`
370
371			`/*`
372			`* Generic i2c probe`
373			`* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'`
374			`*/`
375			`static unsigned short normal_i2c[] = { I2C_SAA7185 >> 1, I2C_CLIENT_END };`
376
377			`static unsigned short ignore = I2C_CLIENT_END;`
378
379			`static struct i2c_client_address_data addr_data = {`
380			`.normal_i2c = normal_i2c,`
381			`.probe = &ignore,`
382			`.ignore = &ignore,`
383			`};`
384
385			`static struct i2c_driver i2c_driver_saa7185;`
386
387			`static int`
388			`saa7185_detect_client (struct i2c_adapter *adapter,`
389			`int address,`
390			`int kind)`
391			`{`
392			`int i;`
393			`struct i2c_client *client;`
394			`struct saa7185 *encoder;`
395
396			`dprintk(1,`
397			`KERN_INFO`
398			`"saa7185.c: detecting saa7185 client on address 0x%x\n",`
399			`address << 1);`
400
401			`/* Check if the adapter supports the needed features */`
402			`if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))`
403			`return 0;`
404
405			`client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);`
406			`if (client == 0)`
407			`return -ENOMEM;`
408			`client->addr = address;`
409			`client->adapter = adapter;`
410			`client->driver = &i2c_driver_saa7185;`
411			`strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));`
412
413			`encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL);`
414			`if (encoder == NULL) {`
415			`kfree(client);`
416			`return -ENOMEM;`
417			`}`
418			`encoder->norm = VIDEO_MODE_NTSC;`
419			`encoder->enable = 1;`
420			`i2c_set_clientdata(client, encoder);`
421
422			`i = i2c_attach_client(client);`
423			`if (i) {`
424			`kfree(client);`
425			`kfree(encoder);`
426			`return i;`
427			`}`
428
429			`i = saa7185_write_block(client, init_common, sizeof(init_common));`
430			`if (i >= 0) {`
431			`i = saa7185_write_block(client, init_ntsc,`
432			`sizeof(init_ntsc));`
433			`}`
434			`if (i < 0) {`
435			`dprintk(1, KERN_ERR "%s_attach: init error %d\n",`
436			`I2C_NAME(client), i);`
437			`} else {`
438			`dprintk(1,`
439			`KERN_INFO`
440			`"%s_attach: chip version %d at address 0x%x\n",`
441			`I2C_NAME(client), saa7185_read(client) >> 5,`
442			`client->addr << 1);`
443			`}`
444
445			`return 0;`
446			`}`
447
448			`static int`
449			`saa7185_attach_adapter (struct i2c_adapter *adapter)`
450			`{`
451			`dprintk(1,`
452			`KERN_INFO`
453			`"saa7185.c: starting probe for adapter %s (0x%x)\n",`
454			`I2C_NAME(adapter), adapter->id);`
455			`return i2c_probe(adapter, &addr_data, &saa7185_detect_client);`
456			`}`
457
458			`static int`
459			`saa7185_detach_client (struct i2c_client *client)`
460			`{`
461			`struct saa7185 *encoder = i2c_get_clientdata(client);`
462			`int err;`
463
464			`err = i2c_detach_client(client);`
465			`if (err) {`
466			`return err;`
467			`}`
468
469			`saa7185_write(client, 0x61, (encoder->reg[0x61]) \| 0x40); /* SW: output off is active */`
470			`//saa7185_write(client, 0x3a, (encoder->reg[0x3a]) \| 0x80); /* SW: color bar */`
471
472			`kfree(encoder);`
473			`kfree(client);`
474
475			`return 0;`
476			`}`
477
478			`/* ----------------------------------------------------------------------- */`
479
480			`static struct i2c_driver i2c_driver_saa7185 = {`
481			`.driver = {`
482			`.name = "saa7185", /* name */`
483			`},`
484
485			`.id = I2C_DRIVERID_SAA7185B,`
486
487			`.attach_adapter = saa7185_attach_adapter,`
488			`.detach_client = saa7185_detach_client,`
489			`.command = saa7185_command,`
490			`};`
491
492			`static int __init`
493			`saa7185_init (void)`
494			`{`
495			`return i2c_add_driver(&i2c_driver_saa7185);`
496			`}`
497
498			`static void __exit`
499			`saa7185_exit (void)`
500			`{`
501			`i2c_del_driver(&i2c_driver_saa7185);`
502			`}`
503
504			`module_init(saa7185_init);`
505			`module_exit(saa7185_exit);`