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authorMarkus Rechberger <mrechberger@gmail.com>2008-10-22 20:07:42 -0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-12-29 14:53:13 -0500
commitaa56cb9db05858912f5d06b36740df5600666e3d (patch)
tree6cc3bf5f7b7df5d4656b21a16803b70af709a7d0
parent2c5aacc6c7916e0a432991b68f3645540365ad53 (diff)
V4L/DVB (9364): adding sharp s921 ISDB-T driver
s921_module.c: wrapper for the dvb frontend interface s921_core.c: core s921 1seg ISDB-T driver, everything is set to auto as much as possible in order to not require certain parameters which currently cannot be passed to the ISDB-T chip. ISDB-T support can be tested using dvbscan, dvbstream/snoop and mplayer Tested 1seg H264/aac stream with this driver using a custom linux ISDB-T player Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat
-rw-r--r--drivers/media/video/empia/sharp/Makefile3
-rw-r--r--drivers/media/video/empia/sharp/s921_core.c215
-rw-r--r--drivers/media/video/empia/sharp/s921_core.h114
-rw-r--r--drivers/media/video/empia/sharp/s921_module.c190
-rw-r--r--drivers/media/video/empia/sharp/s921_module.h49
5 files changed, 571 insertions, 0 deletions
diff --git a/drivers/media/video/empia/sharp/Makefile b/drivers/media/video/empia/sharp/Makefile
new file mode 100644
index 000000000000..510561130064
--- /dev/null
+++ b/drivers/media/video/empia/sharp/Makefile
@@ -0,0 +1,3 @@
1s921-objs := s921_module.o s921_core.o
2
3obj-m += s921.o
diff --git a/drivers/media/video/empia/sharp/s921_core.c b/drivers/media/video/empia/sharp/s921_core.c
new file mode 100644
index 000000000000..01a7caebc0e9
--- /dev/null
+++ b/drivers/media/video/empia/sharp/s921_core.c
@@ -0,0 +1,215 @@
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 "s921_core.h"
12
13static int s921_isdb_init(struct s921_isdb_t *dev);
14static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params);
15static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params);
16static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data);
17
18static u8 init_table[]={ 0x01, 0x40, 0x02, 0x00, 0x03, 0x40, 0x04, 0x01,
19 0x05, 0x00, 0x06, 0x00, 0x07, 0x00, 0x08, 0x00,
20 0x09, 0x00, 0x0a, 0x00, 0x0b, 0x5a, 0x0c, 0x00,
21 0x0d, 0x00, 0x0f, 0x00, 0x13, 0x1b, 0x14, 0x80,
22 0x15, 0x40, 0x17, 0x70, 0x18, 0x01, 0x19, 0x12,
23 0x1a, 0x01, 0x1b, 0x12, 0x1c, 0xa0, 0x1d, 0x00,
24 0x1e, 0x0a, 0x1f, 0x08, 0x20, 0x40, 0x21, 0xff,
25 0x22, 0x4c, 0x23, 0x4e, 0x24, 0x4c, 0x25, 0x00,
26 0x26, 0x00, 0x27, 0xf4, 0x28, 0x60, 0x29, 0x88,
27 0x2a, 0x40, 0x2b, 0x40, 0x2c, 0xff, 0x2d, 0x00,
28 0x2e, 0xff, 0x2f, 0x00, 0x30, 0x20, 0x31, 0x06,
29 0x32, 0x0c, 0x34, 0x0f, 0x37, 0xfe, 0x38, 0x00,
30 0x39, 0x63, 0x3a, 0x10, 0x3b, 0x10, 0x47, 0x00,
31 0x49, 0xe5, 0x4b, 0x00, 0x50, 0xc0, 0x52, 0x20,
32 0x54, 0x5a, 0x55, 0x5b, 0x56, 0x40, 0x57, 0x70,
33 0x5c, 0x50, 0x5d, 0x00, 0x62, 0x17, 0x63, 0x2f,
34 0x64, 0x6f, 0x68, 0x00, 0x69, 0x89, 0x6a, 0x00,
35 0x6b, 0x00, 0x6c, 0x00, 0x6d, 0x00, 0x6e, 0x00,
36 0x70, 0x00, 0x71, 0x00, 0x75, 0x00, 0x76, 0x30,
37 0x77, 0x01, 0xaf, 0x00, 0xb0, 0xa0, 0xb2, 0x3d,
38 0xb3, 0x25, 0xb4, 0x8b, 0xb5, 0x4b, 0xb6, 0x3f,
39 0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xfc, 0xba, 0x00,
40 0xbb, 0x00, 0xbc, 0x00, 0xd0, 0x30, 0xe4, 0x84,
41 0xf0, 0x48, 0xf1, 0x19, 0xf2, 0x5a, 0xf3, 0x8e,
42 0xf4, 0x2d, 0xf5, 0x07, 0xf6, 0x5a, 0xf7, 0xba,
43 0xf8, 0xd7 };
44
45static u8 c_table[]={ 0x58, 0x8a, 0x7b, 0x59, 0x8c, 0x7b, 0x5a, 0x8e, 0x5b,
46 0x5b, 0x90, 0x5b, 0x5c, 0x92, 0x5b, 0x5d, 0x94, 0x5b,
47 0x5e, 0x96, 0x5b, 0x5f, 0x98, 0x3b, 0x60, 0x9a, 0x3b,
48 0x61, 0x9c, 0x3b, 0x62, 0x9e, 0x3b, 0x63, 0xa0, 0x3b,
49 0x64, 0xa2, 0x1b, 0x65, 0xa4, 0x1b, 0x66, 0xa6, 0x1b,
50 0x67, 0xa8, 0x1b, 0x68, 0xaa, 0x1b, 0x69, 0xac, 0x1b,
51 0x6a, 0xae, 0x1b, 0x6b, 0xb0, 0x1b, 0x6c, 0xb2, 0x1b,
52 0x6d, 0xb4, 0xfb, 0x6e, 0xb6, 0xfb, 0x6f, 0xb8, 0xfb,
53 0x70, 0xba, 0xfb, 0x71, 0xbc, 0xdb, 0x72, 0xbe, 0xdb,
54 0x73, 0xc0, 0xdb, 0x74, 0xc2, 0xdb, 0x75, 0xc4, 0xdb,
55 0x76, 0xc6, 0xdb, 0x77, 0xc8, 0xbb, 0x78, 0xca, 0xbb,
56 0x79, 0xcc, 0xbb, 0x7a, 0xce, 0xbb, 0x7b, 0xd0, 0xbb,
57 0x7c, 0xd2, 0xbb, 0x7d, 0xd4, 0xbb, 0x7e, 0xd6, 0xbb,
58 0x7f, 0xd8, 0xbb, 0x80, 0xda, 0x9b, 0x81, 0xdc, 0x9b,
59 0x82, 0xde, 0x9b, 0x83, 0xe0, 0x9b, 0x84, 0xe2, 0x9b,
60 0x85, 0xe4, 0x9b, 0x86, 0xe6, 0x9b, 0x87, 0xe8, 0x9b,
61 0x88, 0xea, 0x9b, 0x89, 0xec, 0x9b };
62
63int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data) {
64 switch(cmd) {
65 case ISDB_T_CMD_INIT:
66 s921_isdb_init(dev);
67 break;
68 case ISDB_T_CMD_SET_PARAM:
69 s921_isdb_set_parameters(dev, data);
70 break;
71 case ISDB_T_CMD_TUNE:
72 s921_isdb_tune(dev, data);
73 break;
74 case ISDB_T_CMD_GET_STATUS:
75 s921_isdb_get_status(dev, data);
76 break;
77 default:
78 printk("unhandled command\n");
79 return -EINVAL;
80 }
81 return 0;
82}
83
84static int s921_isdb_init(struct s921_isdb_t *dev) {
85 unsigned int i;
86 unsigned int ret;
87 printk("isdb_init\n");
88 for (i = 0; i < sizeof(init_table); i+=2) {
89 ret = dev->i2c_write(dev->priv_dev, init_table[i], init_table[i+1]);
90 if (ret != 0) {
91 printk("i2c write failed\n");
92 return ret;
93 }
94 }
95 return 0;
96}
97
98static int s921_isdb_set_parameters(struct s921_isdb_t *dev, struct s921_isdb_t_transmission_mode_params *params) {
99
100 int ret;
101 /* auto is sufficient for now, lateron this should be reflected in an extra interface */
102
103
104
105 ret = dev->i2c_write(dev->priv_dev, 0xb0, 0xa0); //mod_b2);
106 ret = dev->i2c_write(dev->priv_dev, 0xb2, 0x3d); //mod_b2);
107
108 if (ret < 0)
109 return -EINVAL;
110
111 ret = dev->i2c_write(dev->priv_dev, 0xb3, 0x25); //mod_b3);
112 if (ret < 0)
113 return -EINVAL;
114
115 ret = dev->i2c_write(dev->priv_dev, 0xb4, 0x8b); //mod_b4);
116 if (ret < 0)
117 return -EINVAL;
118
119 ret = dev->i2c_write(dev->priv_dev, 0xb5, 0x4b); //mod_b5);
120 if (ret < 0)
121 return -EINVAL;
122
123 ret = dev->i2c_write(dev->priv_dev, 0xb6, 0x3f); //mod_b6);
124 if (ret < 0)
125 return -EINVAL;
126
127 ret = dev->i2c_write(dev->priv_dev, 0xb7, 0x3f); //mod_b7);
128 if (ret < 0)
129 return -EINVAL;
130
131 return E_OK;
132}
133
134static int s921_isdb_tune(struct s921_isdb_t *dev, struct s921_isdb_t_tune_params *params) {
135
136 int ret;
137 int index;
138
139 index = (params->frequency - 473143000)/6000000;
140
141 if (index > 48) {
142 return -EINVAL;
143 }
144
145 dev->i2c_write(dev->priv_dev, 0x47, 0x60);
146
147 ret = dev->i2c_write(dev->priv_dev, 0x68, 0x00);
148 if (ret < 0)
149 return -EINVAL;
150
151 ret = dev->i2c_write(dev->priv_dev, 0x69, 0x89);
152 if (ret < 0)
153 return -EINVAL;
154
155 ret = dev->i2c_write(dev->priv_dev, 0xf0, 0x48);
156 if (ret < 0)
157 return -EINVAL;
158
159 ret = dev->i2c_write(dev->priv_dev, 0xf1, 0x19);
160 if (ret < 0)
161 return -EINVAL;
162
163 ret = dev->i2c_write(dev->priv_dev, 0xf2, c_table[index*3]);
164 if (ret < 0)
165 return -EINVAL;
166
167 ret = dev->i2c_write(dev->priv_dev, 0xf3, c_table[index*3+1]);
168 if (ret < 0)
169 return -EINVAL;
170
171 ret = dev->i2c_write(dev->priv_dev, 0xf4, c_table[index*3+2]);
172 if (ret < 0)
173 return -EINVAL;
174
175 ret = dev->i2c_write(dev->priv_dev, 0xf5, 0xae);
176 if (ret < 0)
177 return -EINVAL;
178
179 ret = dev->i2c_write(dev->priv_dev, 0xf6, 0xb7);
180 if (ret < 0)
181 return -EINVAL;
182
183 ret = dev->i2c_write(dev->priv_dev, 0xf7, 0xba);
184 if (ret < 0)
185 return -EINVAL;
186
187 ret = dev->i2c_write(dev->priv_dev, 0xf8, 0xd7);
188 if (ret < 0)
189 return -EINVAL;
190
191 ret = dev->i2c_write(dev->priv_dev, 0x68, 0x0a);
192 if (ret < 0)
193 return -EINVAL;
194
195 ret = dev->i2c_write(dev->priv_dev, 0x69, 0x09);
196 if (ret < 0)
197 return -EINVAL;
198
199 dev->i2c_write(dev->priv_dev, 0x01, 0x40);
200 return 0;
201}
202
203static int s921_isdb_get_status(struct s921_isdb_t *dev, void *data) {
204 unsigned int *ret = (unsigned int*)data;
205 u8 ifagc_dt;
206 u8 rfagc_dt;
207
208 mdelay(10);
209 ifagc_dt = dev->i2c_read(dev->priv_dev, 0x81);
210 rfagc_dt = dev->i2c_read(dev->priv_dev, 0x82);
211 if (rfagc_dt == 0x40) {
212 *ret = 1;
213 }
214 return 0;
215}
diff --git a/drivers/media/video/empia/sharp/s921_core.h b/drivers/media/video/empia/sharp/s921_core.h
new file mode 100644
index 000000000000..de2f10a44e72
--- /dev/null
+++ b/drivers/media/video/empia/sharp/s921_core.h
@@ -0,0 +1,114 @@
1#ifndef _S921_CORE_H
2#define _S921_CORE_H
3//#define u8 unsigned int
4//#define u32 unsigned int
5
6
7
8//#define EINVAL -1
9#define E_OK 0
10
11struct s921_isdb_t {
12 void *priv_dev;
13 int (*i2c_write)(void *dev, u8 reg, u8 val);
14 int (*i2c_read)(void *dev, u8 reg);
15};
16
17#define ISDB_T_CMD_INIT 0
18#define ISDB_T_CMD_SET_PARAM 1
19#define ISDB_T_CMD_TUNE 2
20#define ISDB_T_CMD_GET_STATUS 3
21
22struct s921_isdb_t_tune_params {
23 u32 frequency;
24};
25
26struct s921_isdb_t_status {
27};
28
29struct s921_isdb_t_transmission_mode_params {
30 u8 mode;
31 u8 layer_a_mode;
32#define ISDB_T_LA_MODE_1 0
33#define ISDB_T_LA_MODE_2 1
34#define ISDB_T_LA_MODE_3 2
35 u8 layer_a_carrier_modulation;
36#define ISDB_T_LA_CM_DQPSK 0
37#define ISDB_T_LA_CM_QPSK 1
38#define ISDB_T_LA_CM_16QAM 2
39#define ISDB_T_LA_CM_64QAM 3
40#define ISDB_T_LA_CM_NOLAYER 4
41 u8 layer_a_code_rate;
42#define ISDB_T_LA_CR_1_2 0
43#define ISDB_T_LA_CR_2_3 1
44#define ISDB_T_LA_CR_3_4 2
45#define ISDB_T_LA_CR_5_6 4
46#define ISDB_T_LA_CR_7_8 8
47#define ISDB_T_LA_CR_NOLAYER 16
48 u8 layer_a_time_interleave;
49#define ISDB_T_LA_TI_0 0
50#define ISDB_T_LA_TI_1 1
51#define ISDB_T_LA_TI_2 2
52#define ISDB_T_LA_TI_4 4
53#define ISDB_T_LA_TI_8 8
54#define ISDB_T_LA_TI_16 16
55#define ISDB_T_LA_TI_32 32
56 u8 layer_a_nseg;
57
58 u8 layer_b_mode;
59#define ISDB_T_LB_MODE_1 0
60#define ISDB_T_LB_MODE_2 1
61#define ISDB_T_LB_MODE_3 2
62 u8 layer_b_carrier_modulation;
63#define ISDB_T_LB_CM_DQPSK 0
64#define ISDB_T_LB_CM_QPSK 1
65#define ISDB_T_LB_CM_16QAM 2
66#define ISDB_T_LB_CM_64QAM 3
67#define ISDB_T_LB_CM_NOLAYER 4
68 u8 layer_b_code_rate;
69#define ISDB_T_LB_CR_1_2 0
70#define ISDB_T_LB_CR_2_3 1
71#define ISDB_T_LB_CR_3_4 2
72#define ISDB_T_LB_CR_5_6 4
73#define ISDB_T_LB_CR_7_8 8
74#define ISDB_T_LB_CR_NOLAYER 16
75 u8 layer_b_time_interleave;
76#define ISDB_T_LB_TI_0 0
77#define ISDB_T_LB_TI_1 1
78#define ISDB_T_LB_TI_2 2
79#define ISDB_T_LB_TI_4 4
80#define ISDB_T_LB_TI_8 8
81#define ISDB_T_LB_TI_16 16
82#define ISDB_T_LB_TI_32 32
83 u8 layer_b_nseg;
84
85 u8 layer_c_mode;
86#define ISDB_T_LC_MODE_1 0
87#define ISDB_T_LC_MODE_2 1
88#define ISDB_T_LC_MODE_3 2
89 u8 layer_c_carrier_modulation;
90#define ISDB_T_LC_CM_DQPSK 0
91#define ISDB_T_LC_CM_QPSK 1
92#define ISDB_T_LC_CM_16QAM 2
93#define ISDB_T_LC_CM_64QAM 3
94#define ISDB_T_LC_CM_NOLAYER 4
95 u8 layer_c_code_rate;
96#define ISDB_T_LC_CR_1_2 0
97#define ISDB_T_LC_CR_2_3 1
98#define ISDB_T_LC_CR_3_4 2
99#define ISDB_T_LC_CR_5_6 4
100#define ISDB_T_LC_CR_7_8 8
101#define ISDB_T_LC_CR_NOLAYER 16
102 u8 layer_c_time_interleave;
103#define ISDB_T_LC_TI_0 0
104#define ISDB_T_LC_TI_1 1
105#define ISDB_T_LC_TI_2 2
106#define ISDB_T_LC_TI_4 4
107#define ISDB_T_LC_TI_8 8
108#define ISDB_T_LC_TI_16 16
109#define ISDB_T_LC_TI_32 32
110 u8 layer_c_nseg;
111};
112
113int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
114#endif
diff --git a/drivers/media/video/empia/sharp/s921_module.c b/drivers/media/video/empia/sharp/s921_module.c
new file mode 100644
index 000000000000..0f03d24ccb8a
--- /dev/null
+++ b/drivers/media/video/empia/sharp/s921_module.c
@@ -0,0 +1,190 @@
1/*
2 * Driver for Sharp s921 driver
3 *
4 * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
5 *
6 * All rights reserved.
7 *
8 */
9
10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/delay.h>
13#include "dvb_frontend.h"
14#include "s921_module.h"
15#include "s921_core.h"
16
17static unsigned int debug = 0;
18module_param(debug, int, 0644);
19MODULE_PARM_DESC(debug,"s921 debugging (default off)");
20
21#define dprintk(fmt, args...) if (debug) do {\
22 printk("s921 debug: " fmt, ##args); } while (0)
23
24struct s921_state
25{
26 struct dvb_frontend frontend;
27 fe_modulation_t current_modulation;
28 __u32 snr;
29 __u32 current_frequency;
30 __u8 addr;
31 struct s921_isdb_t dev;
32 struct i2c_adapter *i2c;
33};
34
35static int s921_set_parameters(struct dvb_frontend *fe, struct dvb_frontend_parameters *param) {
36 struct s921_state *state = (struct s921_state *)fe->demodulator_priv;
37 struct s921_isdb_t_transmission_mode_params params;
38 struct s921_isdb_t_tune_params tune_params;
39
40 tune_params.frequency = param->frequency;
41 s921_isdb_cmd(&state->dev, ISDB_T_CMD_SET_PARAM, &params);
42 s921_isdb_cmd(&state->dev, ISDB_T_CMD_TUNE, &tune_params);
43 mdelay(100);
44 return 0;
45}
46
47static int s921_init(struct dvb_frontend *fe) {
48 printk("s921 init\n");
49 return 0;
50}
51
52static int s921_sleep(struct dvb_frontend *fe) {
53 printk("s921 sleep\n");
54 return 0;
55}
56
57static int s921_read_status(struct dvb_frontend *fe, fe_status_t *status)
58{
59 struct s921_state *state = (struct s921_state *)fe->demodulator_priv;
60 unsigned int ret;
61 mdelay(5);
62 s921_isdb_cmd(&state->dev, ISDB_T_CMD_GET_STATUS, &ret);
63 *status = 0;
64
65 printk("status: %02x\n", ret);
66 if (ret == 1) {
67 *status |= FE_HAS_CARRIER;
68 *status |= FE_HAS_VITERBI;
69 *status |= FE_HAS_LOCK;
70 *status |= FE_HAS_SYNC;
71 *status |= FE_HAS_SIGNAL;
72 }
73
74 return 0;
75}
76
77static int s921_read_ber(struct dvb_frontend *fe, __u32 *ber)
78{
79 dprintk("read ber\n");
80 return 0;
81}
82
83static int s921_read_snr(struct dvb_frontend *fe, __u16 *snr)
84{
85 dprintk("read snr\n");
86 return 0;
87}
88
89static int s921_read_ucblocks(struct dvb_frontend *fe, __u32 *ucblocks)
90{
91 dprintk("read ucblocks\n");
92 return 0;
93}
94
95static void s921_release(struct dvb_frontend *fe)
96{
97 struct s921_state *state = (struct s921_state *)fe->demodulator_priv;
98 kfree(state);
99}
100
101static struct dvb_frontend_ops demod_s921={
102 .info = {
103 .name = "SHARP S921",
104 .type = FE_OFDM,
105 .frequency_min = 473143000,
106 .frequency_max = 767143000,
107 .frequency_stepsize = 6000000,
108 .frequency_tolerance = 0,
109 .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
110 FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
111 FE_CAN_FEC_AUTO |
112 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
113 FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
114 FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER |
115 FE_CAN_MUTE_TS
116 },
117 .init = s921_init,
118 .sleep = s921_sleep,
119 .set_frontend = s921_set_parameters,
120 .read_snr = s921_read_snr,
121 .read_ber = s921_read_ber,
122 .read_status = s921_read_status,
123 .read_ucblocks = s921_read_ucblocks,
124 .release = s921_release,
125};
126
127static int s921_write(void *dev, u8 reg, u8 val) {
128 struct s921_state *state = dev;
129 char buf[2]={reg,val};
130 int err;
131 struct i2c_msg i2cmsgs = {
132 .addr = state->addr,
133 .flags = 0,
134 .len = 2,
135 .buf = buf
136 };
137
138 if((err = i2c_transfer(state->i2c, &i2cmsgs, 1))<0) {
139 printk("%s i2c_transfer error %d\n", __FUNCTION__, err);
140 if (err < 0)
141 return err;
142 else
143 return -EREMOTEIO;
144 }
145
146 return 0;
147}
148
149static int s921_read(void *dev, u8 reg) {
150 struct s921_state *state = dev;
151 u8 b1;
152 int ret;
153 struct i2c_msg msg[2] = { { .addr = state->addr,
154 .flags = 0,
155 .buf = &reg, .len = 1 },
156 { .addr = state->addr,
157 .flags = I2C_M_RD,
158 .buf = &b1, .len = 1 } };
159
160 ret = i2c_transfer(state->i2c, msg, 2);
161 if (ret != 2)
162 return ret;
163 return b1;
164}
165
166struct dvb_frontend* s921_attach(const struct s921_config *config,
167 struct i2c_adapter *i2c)
168{
169
170 struct s921_state *state;
171 state = kzalloc(sizeof(struct s921_state), GFP_KERNEL);
172 memset(state, 0x0, sizeof(struct s921_state));
173
174 state->addr = config->i2c_address;
175 state->i2c = i2c;
176 state->dev.i2c_write = &s921_write;
177 state->dev.i2c_read = &s921_read;
178 state->dev.priv_dev = state;
179
180 s921_isdb_cmd(&state->dev, ISDB_T_CMD_INIT, NULL);
181
182 memcpy(&state->frontend.ops, &demod_s921, sizeof(struct dvb_frontend_ops));
183 state->frontend.demodulator_priv = state;
184 return &state->frontend;
185}
186
187EXPORT_SYMBOL_GPL(s921_attach);
188MODULE_AUTHOR("Markus Rechberger <mrechberger@empiatech.com>");
189MODULE_DESCRIPTION("Sharp S921 ISDB-T 1Seg");
190MODULE_LICENSE("GPL");
diff --git a/drivers/media/video/empia/sharp/s921_module.h b/drivers/media/video/empia/sharp/s921_module.h
new file mode 100644
index 000000000000..78660424ba95
--- /dev/null
+++ b/drivers/media/video/empia/sharp/s921_module.h
@@ -0,0 +1,49 @@
1/*
2 * Driver for DVB-T s921 demodulator
3 *
4 * Copyright (C) 2008 Markus Rechberger <mrechberger@sundtek.de>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 *
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.=
20 */
21
22#ifndef S921_MODULE_H
23#define S921_MODULE_H
24
25#include <linux/dvb/frontend.h>
26#include "s921_core.h"
27
28int s921_isdb_init(struct s921_isdb_t *dev);
29int s921_isdb_cmd(struct s921_isdb_t *dev, u32 cmd, void *data);
30
31struct s921_config
32{
33 /* demodulator's I2C address */
34 u8 i2c_address;
35};
36
37#if defined(CONFIG_DVB_S921) || (defined(CONFIG_DVB_S921_MODULE) && defined(MODULE))
38extern struct dvb_frontend* s921_attach(const struct s921_config *config,
39 struct i2c_adapter *i2c);
40#else
41static inline struct dvb_frontend* s921_attach(const struct s921_config *config,
42 struct i2c_adapter *i2c)
43{
44 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
45 return NULL;
46}
47#endif /* CONFIG_DVB_S921 */
48
49#endif /* S921_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-12 04:31:14 -0400