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Diffstat (limited to 'drivers/media/dvb/mantis/mantis_vp2033.c')
-rw-r--r--drivers/media/dvb/mantis/mantis_vp2033.c187
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
40struct tda1002x_config vp2033_tda1002x_cu1216_config = {
41 .demod_address = 0x18 >> 1,
42 .invert = 1,
43};
44
45struct tda10023_config vp2033_tda10023_cu1216_config = {
46 .demod_address = 0x18 >> 1,
47 .invert = 1,
48};
49
50static 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
68static 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
123static 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
175struct 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};