Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6] / drivers / media / dvb / frontends / s921_core.c
1 /*
2  * Driver for Sharp s921 driver
3  *
4  * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
5  *
6  */
7
8
9 #include <linux/kernel.h>
10 #include <linux/module.h>
11 #include <linux/delay.h>
12 #include "s921_core.h"
13
14 static int s921_isdb_init(struct s921_isdb_t *dev);
15 static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params);
16 static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params);
17 static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data);
18
19 static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
20                          0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
21                          0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
22                          0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
23                          0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
24                          0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
25                          0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
26                          0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
27                          0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
28                          0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
29                          0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
30                          0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
31                          0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
32                          0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
33                          0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
34                          0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
35                          0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
36                          0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
37                          0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
38                          0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
39                          0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
40                          0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
41                          0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
42                          0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
43                          0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
44                          0xf8, 0xd7 };
45
46 static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
47                       0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
48                       0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
49                       0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
50                       0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
51                       0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
52                       0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
53                       0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
54                       0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
55                       0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
56                       0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
57                       0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
58                       0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
59                       0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
60                       0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
61                       0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
62                       0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };
63
64 int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) {
65         switch(cmd) {
66         case ISDB_T_CMD_INIT:
67                 s921_isdb_init(dev);
68                 break;
69         case ISDB_T_CMD_SET_PARAM:
70                 s921_isdb_set_parameters(dev, data);
71                 break;
72         case ISDB_T_CMD_TUNE:
73                 s921_isdb_tune(dev, data);
74                 break;
75         case ISDB_T_CMD_GET_STATUS:
76                 s921_isdb_get_status(dev, data);
77                 break;
78         default:
79                 printk("unhandled command\n");
80                 return -EINVAL;
81         }
82         return 0;
83 }
84
85 static int s921_isdb_init(struct s921_isdb_t *dev) {
86         unsigned int i;
87         unsigned int ret;
88         printk("isdb_init\n");
89         for (i = 0; i < sizeof(init_table); i+=2) {
90                 ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
91                 if (ret != 0) {
92                         printk("i2c write failed\n");
93                         return ret;
94                 }
95         }
96         return 0;
97 }
98
99 static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) {
100
101         int ret;
102         /* auto is sufficient for now, lateron this should be reflected in an extra interface */
103
104
105
106         ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
107         ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);
108
109         if (ret < 0)
110                 return -EINVAL;
111
112         ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
113         if (ret < 0)
114                 return -EINVAL;
115
116         ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
117         if (ret < 0)
118                 return -EINVAL;
119
120         ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
121         if (ret < 0)
122                 return -EINVAL;
123
124         ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
125         if (ret < 0)
126                 return -EINVAL;
127
128         ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
129         if (ret < 0)
130                 return -EINVAL;
131
132         return E_OK;
133 }
134
135 static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) {
136
137         int ret;
138         int index;
139
140         index = (params->frequency - 473143000)/6000000;
141
142         if (index > 48) {
143                 return -EINVAL;
144         }
145
146         dev->i2c_write(dev->priv_dev, 0x47, 0x60);
147
148         ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
149         if (ret < 0)
150                 return -EINVAL;
151
152         ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
153         if (ret < 0)
154                 return -EINVAL;
155
156         ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
157         if (ret < 0)
158                 return -EINVAL;
159
160         ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
161         if (ret < 0)
162                 return -EINVAL;
163
164         ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
165         if (ret < 0)
166                 return -EINVAL;
167
168         ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
169         if (ret < 0)
170                 return -EINVAL;
171
172         ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
173         if (ret < 0)
174                 return -EINVAL;
175
176         ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
177         if (ret < 0)
178                 return -EINVAL;
179
180         ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
181         if (ret < 0)
182                 return -EINVAL;
183
184         ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
185         if (ret < 0)
186                 return -EINVAL;
187
188         ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
189         if (ret < 0)
190                 return -EINVAL;
191
192         ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
193         if (ret < 0)
194                 return -EINVAL;
195
196         ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
197         if (ret < 0)
198                 return -EINVAL;
199
200         dev->i2c_write(dev->priv_dev, 0x01, 0x40);
201         return 0;
202 }
203
204 static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) {
205         unsigned int *ret = (unsigned int*)data;
206         u8 ifagc_dt;
207         u8 rfagc_dt;
208
209         mdelay(10);
210         ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
211         rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
212         if (rfagc_dt == 0x40) {
213                 *ret = 1;
214         }
215         return 0;
216 }