1c942fddfSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
2cb7a01acSMauro Carvalho Chehab /*
3cb7a01acSMauro Carvalho Chehab * saa7185 - Philips SAA7185B video encoder driver version 0.0.3
4cb7a01acSMauro Carvalho Chehab *
5cb7a01acSMauro Carvalho Chehab * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
6cb7a01acSMauro Carvalho Chehab *
7cb7a01acSMauro Carvalho Chehab * Slight changes for video timing and attachment output by
8cb7a01acSMauro Carvalho Chehab * Wolfgang Scherr <scherr@net4you.net>
9cb7a01acSMauro Carvalho Chehab *
10cb7a01acSMauro Carvalho Chehab * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
11cb7a01acSMauro Carvalho Chehab * - moved over to linux>=2.4.x i2c protocol (1/1/2003)
12cb7a01acSMauro Carvalho Chehab */
13cb7a01acSMauro Carvalho Chehab
14cb7a01acSMauro Carvalho Chehab #include <linux/module.h>
15cb7a01acSMauro Carvalho Chehab #include <linux/types.h>
16cb7a01acSMauro Carvalho Chehab #include <linux/slab.h>
17cb7a01acSMauro Carvalho Chehab #include <linux/ioctl.h>
187c0f6ba6SLinus Torvalds #include <linux/uaccess.h>
19cb7a01acSMauro Carvalho Chehab #include <linux/i2c.h>
20cb7a01acSMauro Carvalho Chehab #include <linux/videodev2.h>
21cb7a01acSMauro Carvalho Chehab #include <media/v4l2-device.h>
22cb7a01acSMauro Carvalho Chehab
23cb7a01acSMauro Carvalho Chehab MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
24cb7a01acSMauro Carvalho Chehab MODULE_AUTHOR("Dave Perks");
25cb7a01acSMauro Carvalho Chehab MODULE_LICENSE("GPL");
26cb7a01acSMauro Carvalho Chehab
27cb7a01acSMauro Carvalho Chehab static int debug;
28cb7a01acSMauro Carvalho Chehab module_param(debug, int, 0);
29cb7a01acSMauro Carvalho Chehab MODULE_PARM_DESC(debug, "Debug level (0-1)");
30cb7a01acSMauro Carvalho Chehab
31cb7a01acSMauro Carvalho Chehab
32cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
33cb7a01acSMauro Carvalho Chehab
34cb7a01acSMauro Carvalho Chehab struct saa7185 {
35cb7a01acSMauro Carvalho Chehab struct v4l2_subdev sd;
36cb7a01acSMauro Carvalho Chehab unsigned char reg[128];
37cb7a01acSMauro Carvalho Chehab
38cb7a01acSMauro Carvalho Chehab v4l2_std_id norm;
39cb7a01acSMauro Carvalho Chehab };
40cb7a01acSMauro Carvalho Chehab
to_saa7185(struct v4l2_subdev * sd)41cb7a01acSMauro Carvalho Chehab static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd)
42cb7a01acSMauro Carvalho Chehab {
43cb7a01acSMauro Carvalho Chehab return container_of(sd, struct saa7185, sd);
44cb7a01acSMauro Carvalho Chehab }
45cb7a01acSMauro Carvalho Chehab
46cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
47cb7a01acSMauro Carvalho Chehab
saa7185_read(struct v4l2_subdev * sd)48cb7a01acSMauro Carvalho Chehab static inline int saa7185_read(struct v4l2_subdev *sd)
49cb7a01acSMauro Carvalho Chehab {
50cb7a01acSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd);
51cb7a01acSMauro Carvalho Chehab
52cb7a01acSMauro Carvalho Chehab return i2c_smbus_read_byte(client);
53cb7a01acSMauro Carvalho Chehab }
54cb7a01acSMauro Carvalho Chehab
saa7185_write(struct v4l2_subdev * sd,u8 reg,u8 value)55cb7a01acSMauro Carvalho Chehab static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value)
56cb7a01acSMauro Carvalho Chehab {
57cb7a01acSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd);
58cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder = to_saa7185(sd);
59cb7a01acSMauro Carvalho Chehab
60cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value);
61cb7a01acSMauro Carvalho Chehab encoder->reg[reg] = value;
62cb7a01acSMauro Carvalho Chehab return i2c_smbus_write_byte_data(client, reg, value);
63cb7a01acSMauro Carvalho Chehab }
64cb7a01acSMauro Carvalho Chehab
saa7185_write_block(struct v4l2_subdev * sd,const u8 * data,unsigned int len)65cb7a01acSMauro Carvalho Chehab static int saa7185_write_block(struct v4l2_subdev *sd,
66cb7a01acSMauro Carvalho Chehab const u8 *data, unsigned int len)
67cb7a01acSMauro Carvalho Chehab {
68cb7a01acSMauro Carvalho Chehab struct i2c_client *client = v4l2_get_subdevdata(sd);
69cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder = to_saa7185(sd);
70cb7a01acSMauro Carvalho Chehab int ret = -1;
71cb7a01acSMauro Carvalho Chehab u8 reg;
72cb7a01acSMauro Carvalho Chehab
73cb7a01acSMauro Carvalho Chehab /* the adv7175 has an autoincrement function, use it if
74cb7a01acSMauro Carvalho Chehab * the adapter understands raw I2C */
75cb7a01acSMauro Carvalho Chehab if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
76cb7a01acSMauro Carvalho Chehab /* do raw I2C, not smbus compatible */
77cb7a01acSMauro Carvalho Chehab u8 block_data[32];
78cb7a01acSMauro Carvalho Chehab int block_len;
79cb7a01acSMauro Carvalho Chehab
80cb7a01acSMauro Carvalho Chehab while (len >= 2) {
81cb7a01acSMauro Carvalho Chehab block_len = 0;
82cb7a01acSMauro Carvalho Chehab block_data[block_len++] = reg = data[0];
83cb7a01acSMauro Carvalho Chehab do {
84cb7a01acSMauro Carvalho Chehab block_data[block_len++] =
85cb7a01acSMauro Carvalho Chehab encoder->reg[reg++] = data[1];
86cb7a01acSMauro Carvalho Chehab len -= 2;
87cb7a01acSMauro Carvalho Chehab data += 2;
88cb7a01acSMauro Carvalho Chehab } while (len >= 2 && data[0] == reg && block_len < 32);
89cb7a01acSMauro Carvalho Chehab ret = i2c_master_send(client, block_data, block_len);
90cb7a01acSMauro Carvalho Chehab if (ret < 0)
91cb7a01acSMauro Carvalho Chehab break;
92cb7a01acSMauro Carvalho Chehab }
93cb7a01acSMauro Carvalho Chehab } else {
94cb7a01acSMauro Carvalho Chehab /* do some slow I2C emulation kind of thing */
95cb7a01acSMauro Carvalho Chehab while (len >= 2) {
96cb7a01acSMauro Carvalho Chehab reg = *data++;
97cb7a01acSMauro Carvalho Chehab ret = saa7185_write(sd, reg, *data++);
98cb7a01acSMauro Carvalho Chehab if (ret < 0)
99cb7a01acSMauro Carvalho Chehab break;
100cb7a01acSMauro Carvalho Chehab len -= 2;
101cb7a01acSMauro Carvalho Chehab }
102cb7a01acSMauro Carvalho Chehab }
103cb7a01acSMauro Carvalho Chehab
104cb7a01acSMauro Carvalho Chehab return ret;
105cb7a01acSMauro Carvalho Chehab }
106cb7a01acSMauro Carvalho Chehab
107cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
108cb7a01acSMauro Carvalho Chehab
109cb7a01acSMauro Carvalho Chehab static const unsigned char init_common[] = {
110cb7a01acSMauro Carvalho Chehab 0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1,
111cb7a01acSMauro Carvalho Chehab * YUV2C=1, MY2C=1, MUV2C=1 */
112cb7a01acSMauro Carvalho Chehab
113cb7a01acSMauro Carvalho Chehab 0x42, 0x6b, /* OVLY0=107 */
114cb7a01acSMauro Carvalho Chehab 0x43, 0x00, /* OVLU0=0 white */
115cb7a01acSMauro Carvalho Chehab 0x44, 0x00, /* OVLV0=0 */
116cb7a01acSMauro Carvalho Chehab 0x45, 0x22, /* OVLY1=34 */
117cb7a01acSMauro Carvalho Chehab 0x46, 0xac, /* OVLU1=172 yellow */
118cb7a01acSMauro Carvalho Chehab 0x47, 0x0e, /* OVLV1=14 */
119cb7a01acSMauro Carvalho Chehab 0x48, 0x03, /* OVLY2=3 */
120cb7a01acSMauro Carvalho Chehab 0x49, 0x1d, /* OVLU2=29 cyan */
121cb7a01acSMauro Carvalho Chehab 0x4a, 0xac, /* OVLV2=172 */
122cb7a01acSMauro Carvalho Chehab 0x4b, 0xf0, /* OVLY3=240 */
123cb7a01acSMauro Carvalho Chehab 0x4c, 0xc8, /* OVLU3=200 green */
124cb7a01acSMauro Carvalho Chehab 0x4d, 0xb9, /* OVLV3=185 */
125cb7a01acSMauro Carvalho Chehab 0x4e, 0xd4, /* OVLY4=212 */
126cb7a01acSMauro Carvalho Chehab 0x4f, 0x38, /* OVLU4=56 magenta */
127cb7a01acSMauro Carvalho Chehab 0x50, 0x47, /* OVLV4=71 */
128cb7a01acSMauro Carvalho Chehab 0x51, 0xc1, /* OVLY5=193 */
129cb7a01acSMauro Carvalho Chehab 0x52, 0xe3, /* OVLU5=227 red */
130cb7a01acSMauro Carvalho Chehab 0x53, 0x54, /* OVLV5=84 */
131cb7a01acSMauro Carvalho Chehab 0x54, 0xa3, /* OVLY6=163 */
132cb7a01acSMauro Carvalho Chehab 0x55, 0x54, /* OVLU6=84 blue */
133cb7a01acSMauro Carvalho Chehab 0x56, 0xf2, /* OVLV6=242 */
134cb7a01acSMauro Carvalho Chehab 0x57, 0x90, /* OVLY7=144 */
135cb7a01acSMauro Carvalho Chehab 0x58, 0x00, /* OVLU7=0 black */
136cb7a01acSMauro Carvalho Chehab 0x59, 0x00, /* OVLV7=0 */
137cb7a01acSMauro Carvalho Chehab
138cb7a01acSMauro Carvalho Chehab 0x5a, 0x00, /* CHPS=0 */
139cb7a01acSMauro Carvalho Chehab 0x5b, 0x76, /* GAINU=118 */
140cb7a01acSMauro Carvalho Chehab 0x5c, 0xa5, /* GAINV=165 */
141cb7a01acSMauro Carvalho Chehab 0x5d, 0x3c, /* BLCKL=60 */
142cb7a01acSMauro Carvalho Chehab 0x5e, 0x3a, /* BLNNL=58 */
143cb7a01acSMauro Carvalho Chehab 0x5f, 0x3a, /* CCRS=0, BLNVB=58 */
144cb7a01acSMauro Carvalho Chehab 0x60, 0x00, /* NULL */
145cb7a01acSMauro Carvalho Chehab
146cb7a01acSMauro Carvalho Chehab /* 0x61 - 0x66 set according to norm */
147cb7a01acSMauro Carvalho Chehab
148cb7a01acSMauro Carvalho Chehab 0x67, 0x00, /* 0 : caption 1st byte odd field */
149cb7a01acSMauro Carvalho Chehab 0x68, 0x00, /* 0 : caption 2nd byte odd field */
150cb7a01acSMauro Carvalho Chehab 0x69, 0x00, /* 0 : caption 1st byte even field */
151cb7a01acSMauro Carvalho Chehab 0x6a, 0x00, /* 0 : caption 2nd byte even field */
152cb7a01acSMauro Carvalho Chehab
153cb7a01acSMauro Carvalho Chehab 0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */
154cb7a01acSMauro Carvalho Chehab 0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,
155cb7a01acSMauro Carvalho Chehab * CBLF=0, ORCV2=0, PRCV2=0 */
156cb7a01acSMauro Carvalho Chehab 0x6d, 0x00, /* SRCM1=0, CCEN=0 */
157cb7a01acSMauro Carvalho Chehab
158cb7a01acSMauro Carvalho Chehab 0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at
159cb7a01acSMauro Carvalho Chehab * least for PAL */
160cb7a01acSMauro Carvalho Chehab 0x6f, 0x00, /* HTRIG upper bits */
161cb7a01acSMauro Carvalho Chehab 0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */
162cb7a01acSMauro Carvalho Chehab
163cb7a01acSMauro Carvalho Chehab /* The following should not be needed */
164cb7a01acSMauro Carvalho Chehab
165cb7a01acSMauro Carvalho Chehab 0x71, 0x15, /* BMRQ=0x115 */
166cb7a01acSMauro Carvalho Chehab 0x72, 0x90, /* EMRQ=0x690 */
167cb7a01acSMauro Carvalho Chehab 0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */
168cb7a01acSMauro Carvalho Chehab 0x74, 0x00, /* NULL */
169cb7a01acSMauro Carvalho Chehab 0x75, 0x00, /* NULL */
170cb7a01acSMauro Carvalho Chehab 0x76, 0x00, /* NULL */
171cb7a01acSMauro Carvalho Chehab 0x77, 0x15, /* BRCV=0x115 */
172cb7a01acSMauro Carvalho Chehab 0x78, 0x90, /* ERCV=0x690 */
173cb7a01acSMauro Carvalho Chehab 0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */
174cb7a01acSMauro Carvalho Chehab
175cb7a01acSMauro Carvalho Chehab /* Field length controls */
176cb7a01acSMauro Carvalho Chehab
177cb7a01acSMauro Carvalho Chehab 0x7a, 0x70, /* FLC=0 */
178cb7a01acSMauro Carvalho Chehab
179cb7a01acSMauro Carvalho Chehab /* The following should not be needed if SBLN = 1 */
180cb7a01acSMauro Carvalho Chehab
181cb7a01acSMauro Carvalho Chehab 0x7b, 0x16, /* FAL=22 */
182cb7a01acSMauro Carvalho Chehab 0x7c, 0x35, /* LAL=244 */
183cb7a01acSMauro Carvalho Chehab 0x7d, 0x20, /* LAL=244, FAL=22 */
184cb7a01acSMauro Carvalho Chehab };
185cb7a01acSMauro Carvalho Chehab
186cb7a01acSMauro Carvalho Chehab static const unsigned char init_pal[] = {
187cb7a01acSMauro Carvalho Chehab 0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1,
188cb7a01acSMauro Carvalho Chehab * YGS=1, INPI=0, DOWN=0 */
189cb7a01acSMauro Carvalho Chehab 0x62, 0xc8, /* DECTYP=1, BSTA=72 */
190cb7a01acSMauro Carvalho Chehab 0x63, 0xcb, /* FSC0 */
191cb7a01acSMauro Carvalho Chehab 0x64, 0x8a, /* FSC1 */
192cb7a01acSMauro Carvalho Chehab 0x65, 0x09, /* FSC2 */
193cb7a01acSMauro Carvalho Chehab 0x66, 0x2a, /* FSC3 */
194cb7a01acSMauro Carvalho Chehab };
195cb7a01acSMauro Carvalho Chehab
196cb7a01acSMauro Carvalho Chehab static const unsigned char init_ntsc[] = {
197cb7a01acSMauro Carvalho Chehab 0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1,
198cb7a01acSMauro Carvalho Chehab * YGS=1, INPI=0, DOWN=0 */
199cb7a01acSMauro Carvalho Chehab 0x62, 0xe6, /* DECTYP=1, BSTA=102 */
200cb7a01acSMauro Carvalho Chehab 0x63, 0x1f, /* FSC0 */
201cb7a01acSMauro Carvalho Chehab 0x64, 0x7c, /* FSC1 */
202cb7a01acSMauro Carvalho Chehab 0x65, 0xf0, /* FSC2 */
203cb7a01acSMauro Carvalho Chehab 0x66, 0x21, /* FSC3 */
204cb7a01acSMauro Carvalho Chehab };
205cb7a01acSMauro Carvalho Chehab
206cb7a01acSMauro Carvalho Chehab
saa7185_init(struct v4l2_subdev * sd,u32 val)207cb7a01acSMauro Carvalho Chehab static int saa7185_init(struct v4l2_subdev *sd, u32 val)
208cb7a01acSMauro Carvalho Chehab {
209cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder = to_saa7185(sd);
210cb7a01acSMauro Carvalho Chehab
211cb7a01acSMauro Carvalho Chehab saa7185_write_block(sd, init_common, sizeof(init_common));
212cb7a01acSMauro Carvalho Chehab if (encoder->norm & V4L2_STD_NTSC)
213cb7a01acSMauro Carvalho Chehab saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
214cb7a01acSMauro Carvalho Chehab else
215cb7a01acSMauro Carvalho Chehab saa7185_write_block(sd, init_pal, sizeof(init_pal));
216cb7a01acSMauro Carvalho Chehab return 0;
217cb7a01acSMauro Carvalho Chehab }
218cb7a01acSMauro Carvalho Chehab
saa7185_s_std_output(struct v4l2_subdev * sd,v4l2_std_id std)219cb7a01acSMauro Carvalho Chehab static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
220cb7a01acSMauro Carvalho Chehab {
221cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder = to_saa7185(sd);
222cb7a01acSMauro Carvalho Chehab
223cb7a01acSMauro Carvalho Chehab if (std & V4L2_STD_NTSC)
224cb7a01acSMauro Carvalho Chehab saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
225cb7a01acSMauro Carvalho Chehab else if (std & V4L2_STD_PAL)
226cb7a01acSMauro Carvalho Chehab saa7185_write_block(sd, init_pal, sizeof(init_pal));
227cb7a01acSMauro Carvalho Chehab else
228cb7a01acSMauro Carvalho Chehab return -EINVAL;
229cb7a01acSMauro Carvalho Chehab encoder->norm = std;
230cb7a01acSMauro Carvalho Chehab return 0;
231cb7a01acSMauro Carvalho Chehab }
232cb7a01acSMauro Carvalho Chehab
saa7185_s_routing(struct v4l2_subdev * sd,u32 input,u32 output,u32 config)233cb7a01acSMauro Carvalho Chehab static int saa7185_s_routing(struct v4l2_subdev *sd,
234cb7a01acSMauro Carvalho Chehab u32 input, u32 output, u32 config)
235cb7a01acSMauro Carvalho Chehab {
236cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder = to_saa7185(sd);
237cb7a01acSMauro Carvalho Chehab
238cb7a01acSMauro Carvalho Chehab /* RJ: input = 0: input is from SA7111
239cb7a01acSMauro Carvalho Chehab input = 1: input is from ZR36060 */
240cb7a01acSMauro Carvalho Chehab
241cb7a01acSMauro Carvalho Chehab switch (input) {
242cb7a01acSMauro Carvalho Chehab case 0:
243cb7a01acSMauro Carvalho Chehab /* turn off colorbar */
244cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x3a, 0x0f);
245cb7a01acSMauro Carvalho Chehab /* Switch RTCE to 1 */
246cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
247cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x6e, 0x01);
248cb7a01acSMauro Carvalho Chehab break;
249cb7a01acSMauro Carvalho Chehab
250cb7a01acSMauro Carvalho Chehab case 1:
251cb7a01acSMauro Carvalho Chehab /* turn off colorbar */
252cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x3a, 0x0f);
253cb7a01acSMauro Carvalho Chehab /* Switch RTCE to 0 */
254cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00);
255cb7a01acSMauro Carvalho Chehab /* SW: a slight sync problem... */
256cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x6e, 0x00);
257cb7a01acSMauro Carvalho Chehab break;
258cb7a01acSMauro Carvalho Chehab
259cb7a01acSMauro Carvalho Chehab case 2:
260cb7a01acSMauro Carvalho Chehab /* turn on colorbar */
261cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x3a, 0x8f);
262cb7a01acSMauro Carvalho Chehab /* Switch RTCE to 0 */
263cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
264cb7a01acSMauro Carvalho Chehab /* SW: a slight sync problem... */
265cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x6e, 0x01);
266cb7a01acSMauro Carvalho Chehab break;
267cb7a01acSMauro Carvalho Chehab
268cb7a01acSMauro Carvalho Chehab default:
269cb7a01acSMauro Carvalho Chehab return -EINVAL;
270cb7a01acSMauro Carvalho Chehab }
271cb7a01acSMauro Carvalho Chehab return 0;
272cb7a01acSMauro Carvalho Chehab }
273cb7a01acSMauro Carvalho Chehab
274cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
275cb7a01acSMauro Carvalho Chehab
276cb7a01acSMauro Carvalho Chehab static const struct v4l2_subdev_core_ops saa7185_core_ops = {
277cb7a01acSMauro Carvalho Chehab .init = saa7185_init,
278cb7a01acSMauro Carvalho Chehab };
279cb7a01acSMauro Carvalho Chehab
280cb7a01acSMauro Carvalho Chehab static const struct v4l2_subdev_video_ops saa7185_video_ops = {
281cb7a01acSMauro Carvalho Chehab .s_std_output = saa7185_s_std_output,
282cb7a01acSMauro Carvalho Chehab .s_routing = saa7185_s_routing,
283cb7a01acSMauro Carvalho Chehab };
284cb7a01acSMauro Carvalho Chehab
285cb7a01acSMauro Carvalho Chehab static const struct v4l2_subdev_ops saa7185_ops = {
286cb7a01acSMauro Carvalho Chehab .core = &saa7185_core_ops,
287cb7a01acSMauro Carvalho Chehab .video = &saa7185_video_ops,
288cb7a01acSMauro Carvalho Chehab };
289cb7a01acSMauro Carvalho Chehab
290cb7a01acSMauro Carvalho Chehab
291cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
292cb7a01acSMauro Carvalho Chehab
saa7185_probe(struct i2c_client * client)293a6d8c502SUwe Kleine-König static int saa7185_probe(struct i2c_client *client)
294cb7a01acSMauro Carvalho Chehab {
295cb7a01acSMauro Carvalho Chehab int i;
296cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder;
297cb7a01acSMauro Carvalho Chehab struct v4l2_subdev *sd;
298cb7a01acSMauro Carvalho Chehab
299cb7a01acSMauro Carvalho Chehab /* Check if the adapter supports the needed features */
300cb7a01acSMauro Carvalho Chehab if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
301cb7a01acSMauro Carvalho Chehab return -ENODEV;
302cb7a01acSMauro Carvalho Chehab
303cb7a01acSMauro Carvalho Chehab v4l_info(client, "chip found @ 0x%x (%s)\n",
304cb7a01acSMauro Carvalho Chehab client->addr << 1, client->adapter->name);
305cb7a01acSMauro Carvalho Chehab
306c02b211dSLaurent Pinchart encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
307cb7a01acSMauro Carvalho Chehab if (encoder == NULL)
308cb7a01acSMauro Carvalho Chehab return -ENOMEM;
309cb7a01acSMauro Carvalho Chehab encoder->norm = V4L2_STD_NTSC;
310cb7a01acSMauro Carvalho Chehab sd = &encoder->sd;
311cb7a01acSMauro Carvalho Chehab v4l2_i2c_subdev_init(sd, client, &saa7185_ops);
312cb7a01acSMauro Carvalho Chehab
313cb7a01acSMauro Carvalho Chehab i = saa7185_write_block(sd, init_common, sizeof(init_common));
314cb7a01acSMauro Carvalho Chehab if (i >= 0)
315cb7a01acSMauro Carvalho Chehab i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
316cb7a01acSMauro Carvalho Chehab if (i < 0)
317cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "init error %d\n", i);
318cb7a01acSMauro Carvalho Chehab else
319cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "revision 0x%x\n",
320cb7a01acSMauro Carvalho Chehab saa7185_read(sd) >> 5);
321cb7a01acSMauro Carvalho Chehab return 0;
322cb7a01acSMauro Carvalho Chehab }
323cb7a01acSMauro Carvalho Chehab
saa7185_remove(struct i2c_client * client)324ed5c2f5fSUwe Kleine-König static void saa7185_remove(struct i2c_client *client)
325cb7a01acSMauro Carvalho Chehab {
326cb7a01acSMauro Carvalho Chehab struct v4l2_subdev *sd = i2c_get_clientdata(client);
327cb7a01acSMauro Carvalho Chehab struct saa7185 *encoder = to_saa7185(sd);
328cb7a01acSMauro Carvalho Chehab
329cb7a01acSMauro Carvalho Chehab v4l2_device_unregister_subdev(sd);
330cb7a01acSMauro Carvalho Chehab /* SW: output off is active */
331cb7a01acSMauro Carvalho Chehab saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40);
332cb7a01acSMauro Carvalho Chehab }
333cb7a01acSMauro Carvalho Chehab
334cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */
335cb7a01acSMauro Carvalho Chehab
336cb7a01acSMauro Carvalho Chehab static const struct i2c_device_id saa7185_id[] = {
337cb7a01acSMauro Carvalho Chehab { "saa7185", 0 },
338cb7a01acSMauro Carvalho Chehab { }
339cb7a01acSMauro Carvalho Chehab };
340cb7a01acSMauro Carvalho Chehab MODULE_DEVICE_TABLE(i2c, saa7185_id);
341cb7a01acSMauro Carvalho Chehab
342cb7a01acSMauro Carvalho Chehab static struct i2c_driver saa7185_driver = {
343cb7a01acSMauro Carvalho Chehab .driver = {
344cb7a01acSMauro Carvalho Chehab .name = "saa7185",
345cb7a01acSMauro Carvalho Chehab },
346*aaeb31c0SUwe Kleine-König .probe = saa7185_probe,
347cb7a01acSMauro Carvalho Chehab .remove = saa7185_remove,
348cb7a01acSMauro Carvalho Chehab .id_table = saa7185_id,
349cb7a01acSMauro Carvalho Chehab };
350cb7a01acSMauro Carvalho Chehab
351cb7a01acSMauro Carvalho Chehab module_i2c_driver(saa7185_driver);
352