diff options
Diffstat (limited to 'drivers/media/dvb/mantis/mantis_vp2033.c')
-rw-r--r-- | drivers/media/dvb/mantis/mantis_vp2033.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/drivers/media/dvb/mantis/mantis_vp2033.c b/drivers/media/dvb/mantis/mantis_vp2033.c new file mode 100644 index 000000000000..10ce81790a8c --- /dev/null +++ b/drivers/media/dvb/mantis/mantis_vp2033.c | |||
@@ -0,0 +1,187 @@ | |||
1 | /* | ||
2 | Mantis VP-2033 driver | ||
3 | |||
4 | Copyright (C) Manu Abraham (abraham.manu@gmail.com) | ||
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 | GNU General Public License for more details. | ||
15 | |||
16 | You should have received a copy of the GNU General Public License | ||
17 | along with this program; if not, write to the Free Software | ||
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
19 | */ | ||
20 | |||
21 | #include <linux/signal.h> | ||
22 | #include <linux/sched.h> | ||
23 | #include <linux/interrupt.h> | ||
24 | |||
25 | #include "dmxdev.h" | ||
26 | #include "dvbdev.h" | ||
27 | #include "dvb_demux.h" | ||
28 | #include "dvb_frontend.h" | ||
29 | #include "dvb_net.h" | ||
30 | |||
31 | #include "tda1002x.h" | ||
32 | #include "mantis_common.h" | ||
33 | #include "mantis_ioc.h" | ||
34 | #include "mantis_dvb.h" | ||
35 | #include "mantis_vp2033.h" | ||
36 | |||
37 | #define MANTIS_MODEL_NAME "VP-2033" | ||
38 | #define MANTIS_DEV_TYPE "DVB-C" | ||
39 | |||
40 | struct tda1002x_config vp2033_tda1002x_cu1216_config = { | ||
41 | .demod_address = 0x18 >> 1, | ||
42 | .invert = 1, | ||
43 | }; | ||
44 | |||
45 | struct tda10023_config vp2033_tda10023_cu1216_config = { | ||
46 | .demod_address = 0x18 >> 1, | ||
47 | .invert = 1, | ||
48 | }; | ||
49 | |||
50 | static u8 read_pwm(struct mantis_pci *mantis) | ||
51 | { | ||
52 | struct i2c_adapter *adapter = &mantis->adapter; | ||
53 | |||
54 | u8 b = 0xff; | ||
55 | u8 pwm; | ||
56 | struct i2c_msg msg[] = { | ||
57 | {.addr = 0x50, .flags = 0, .buf = &b, .len = 1}, | ||
58 | {.addr = 0x50, .flags = I2C_M_RD, .buf = &pwm, .len = 1} | ||
59 | }; | ||
60 | |||
61 | if ((i2c_transfer(adapter, msg, 2) != 2) | ||
62 | || (pwm == 0xff)) | ||
63 | pwm = 0x48; | ||
64 | |||
65 | return pwm; | ||
66 | } | ||
67 | |||
68 | static int tda1002x_cu1216_tuner_set(struct dvb_frontend *fe, struct dvb_frontend_parameters *params) | ||
69 | { | ||
70 | struct mantis_pci *mantis = fe->dvb->priv; | ||
71 | struct i2c_adapter *adapter = &mantis->adapter; | ||
72 | |||
73 | u8 buf[6]; | ||
74 | struct i2c_msg msg = {.addr = 0x60, .flags = 0, .buf = buf, .len = sizeof(buf)}; | ||
75 | int i; | ||
76 | |||
77 | #define CU1216_IF 36125000 | ||
78 | #define TUNER_MUL 62500 | ||
79 | |||
80 | u32 div = (params->frequency + CU1216_IF + TUNER_MUL / 2) / TUNER_MUL; | ||
81 | |||
82 | buf[0] = (div >> 8) & 0x7f; | ||
83 | buf[1] = div & 0xff; | ||
84 | buf[2] = 0xce; | ||
85 | buf[3] = (params->frequency < 150000000 ? 0x01 : | ||
86 | params->frequency < 445000000 ? 0x02 : 0x04); | ||
87 | buf[4] = 0xde; | ||
88 | buf[5] = 0x20; | ||
89 | |||
90 | if (fe->ops.i2c_gate_ctrl) | ||
91 | fe->ops.i2c_gate_ctrl(fe, 1); | ||
92 | |||
93 | if (i2c_transfer(adapter, &msg, 1) != 1) | ||
94 | return -EIO; | ||
95 | |||
96 | /* wait for the pll lock */ | ||
97 | msg.flags = I2C_M_RD; | ||
98 | msg.len = 1; | ||
99 | for (i = 0; i < 20; i++) { | ||
100 | if (fe->ops.i2c_gate_ctrl) | ||
101 | fe->ops.i2c_gate_ctrl(fe, 1); | ||
102 | |||
103 | if (i2c_transfer(adapter, &msg, 1) == 1 && (buf[0] & 0x40)) | ||
104 | break; | ||
105 | |||
106 | msleep(10); | ||
107 | } | ||
108 | |||
109 | /* switch the charge pump to the lower current */ | ||
110 | msg.flags = 0; | ||
111 | msg.len = 2; | ||
112 | msg.buf = &buf[2]; | ||
113 | buf[2] &= ~0x40; | ||
114 | if (fe->ops.i2c_gate_ctrl) | ||
115 | fe->ops.i2c_gate_ctrl(fe, 1); | ||
116 | |||
117 | if (i2c_transfer(adapter, &msg, 1) != 1) | ||
118 | return -EIO; | ||
119 | |||
120 | return 0; | ||
121 | } | ||
122 | |||
123 | static int vp2033_frontend_init(struct mantis_pci *mantis, struct dvb_frontend *fe) | ||
124 | { | ||
125 | struct i2c_adapter *adapter = &mantis->adapter; | ||
126 | |||
127 | int err = 0; | ||
128 | |||
129 | err = mantis_frontend_power(mantis, POWER_ON); | ||
130 | if (err == 0) { | ||
131 | mantis_frontend_soft_reset(mantis); | ||
132 | msleep(250); | ||
133 | |||
134 | dprintk(MANTIS_ERROR, 1, "Probing for CU1216 (DVB-C)"); | ||
135 | fe = tda10021_attach(&vp2033_tda1002x_cu1216_config, | ||
136 | adapter, | ||
137 | read_pwm(mantis)); | ||
138 | |||
139 | if (fe) { | ||
140 | dprintk(MANTIS_ERROR, 1, | ||
141 | "found Philips CU1216 DVB-C frontend (TDA10021) @ 0x%02x", | ||
142 | vp2033_tda1002x_cu1216_config.demod_address); | ||
143 | } else { | ||
144 | fe = tda10023_attach(&vp2033_tda10023_cu1216_config, | ||
145 | adapter, | ||
146 | read_pwm(mantis)); | ||
147 | |||
148 | if (fe) { | ||
149 | dprintk(MANTIS_ERROR, 1, | ||
150 | "found Philips CU1216 DVB-C frontend (TDA10023) @ 0x%02x", | ||
151 | vp2033_tda1002x_cu1216_config.demod_address); | ||
152 | } | ||
153 | } | ||
154 | |||
155 | if (fe) { | ||
156 | fe->ops.tuner_ops.set_params = tda1002x_cu1216_tuner_set; | ||
157 | dprintk(MANTIS_ERROR, 1, "Mantis DVB-C Philips CU1216 frontend attach success"); | ||
158 | } else { | ||
159 | return -1; | ||
160 | } | ||
161 | } else { | ||
162 | dprintk(MANTIS_ERROR, 1, "Frontend on <%s> POWER ON failed! <%d>", | ||
163 | adapter->name, | ||
164 | err); | ||
165 | |||
166 | return -EIO; | ||
167 | } | ||
168 | |||
169 | mantis->fe = fe; | ||
170 | dprintk(MANTIS_DEBUG, 1, "Done!"); | ||
171 | |||
172 | return 0; | ||
173 | } | ||
174 | |||
175 | struct mantis_hwconfig vp2033_config = { | ||
176 | .model_name = MANTIS_MODEL_NAME, | ||
177 | .dev_type = MANTIS_DEV_TYPE, | ||
178 | .ts_size = MANTIS_TS_204, | ||
179 | |||
180 | .baud_rate = MANTIS_BAUD_9600, | ||
181 | .parity = MANTIS_PARITY_NONE, | ||
182 | .bytes = 0, | ||
183 | |||
184 | .frontend_init = vp2033_frontend_init, | ||
185 | .power = GPIF_A12, | ||
186 | .reset = GPIF_A13, | ||
187 | }; | ||