mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 09:44:18 +08:00
V4L/DVB: Support for Sharp IX2505V (marked B0017) DVB-S silicon tuner
Tuner used in Sharp BS2F7VZ7395 dvbs module. When ix2505v tuner is attached to stv0288 form this module. Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Malcolm Priestley
Mauro Carvalho Chehab
parent
f78729b40a
commit
1ae2c5893d
@ -607,6 +607,13 @@ config DVB_TDA665x
|
||||
Currently supported tuners:
|
||||
* Panasonic ENV57H12D5 (ET-50DT)
|
||||
|
||||
config DVB_IX2505V
|
||||
tristate "Sharp IX2505V silicon tuner"
|
||||
depends on DVB_CORE && I2C
|
||||
default m if DVB_FE_CUSTOMISE
|
||||
help
|
||||
A DVB-S tuner module. Say Y when you want to support this frontend.
|
||||
|
||||
comment "Tools to develop new frontends"
|
||||
|
||||
config DVB_DUMMY_FE
|
||||
|
||||
@ -82,3 +82,4 @@ obj-$(CONFIG_DVB_ISL6423) += isl6423.o
|
||||
obj-$(CONFIG_DVB_EC100) += ec100.o
|
||||
obj-$(CONFIG_DVB_DS3000) += ds3000.o
|
||||
obj-$(CONFIG_DVB_MB86A16) += mb86a16.o
|
||||
obj-$(CONFIG_DVB_IX2505V) += ix2505v.o
|
||||
|
||||
324
drivers/media/dvb/frontends/ix2505v.c
Normal file
324
drivers/media/dvb/frontends/ix2505v.c
Normal file
@ -0,0 +1,324 @@
|
||||
/**
|
||||
* Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
|
||||
*
|
||||
* Copyright (C) 2010 Malcolm Priestley
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License Version 2, as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/dvb/frontend.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
#include "ix2505v.h"
|
||||
|
||||
static int ix2505v_debug;
|
||||
#define dprintk(level, args...) \
|
||||
do { if (ix2505v_debug & level) printk(KERN_DEBUG "ix2505v: " args); \
|
||||
} while (0)
|
||||
|
||||
#define deb_info(args...) dprintk(0x01, args)
|
||||
#define deb_i2c(args...) dprintk(0x02, args)
|
||||
|
||||
struct ix2505v_state {
|
||||
struct i2c_adapter *i2c;
|
||||
const struct ix2505v_config *config;
|
||||
u32 frequency;
|
||||
};
|
||||
|
||||
/**
|
||||
* Data read format of the Sharp IX2505V B0017
|
||||
*
|
||||
* byte1: 1 | 1 | 0 | 0 | 0 | MA1 | MA0 | 1
|
||||
* byte2: POR | FL | RD2 | RD1 | RD0 | X | X | X
|
||||
*
|
||||
* byte1 = address
|
||||
* byte2;
|
||||
* POR = Power on Reset (VCC H=<2.2v L=>2.2v)
|
||||
* FL = Phase Lock (H=lock L=unlock)
|
||||
* RD0-2 = Reserved internal operations
|
||||
*
|
||||
* Only POR can be used to check the tuner is present
|
||||
*
|
||||
* Caution: after byte2 the I2C reverts to write mode continuing to read
|
||||
* may corrupt tuning data.
|
||||
*
|
||||
*/
|
||||
|
||||
static int ix2505v_read_status_reg(struct ix2505v_state *state)
|
||||
{
|
||||
u8 addr = state->config->tuner_address;
|
||||
u8 b2[] = {0};
|
||||
int ret;
|
||||
|
||||
struct i2c_msg msg[1] = {
|
||||
{ .addr = addr, .flags = I2C_M_RD, .buf = b2, .len = 1 }
|
||||
};
|
||||
|
||||
ret = i2c_transfer(state->i2c, msg, 1);
|
||||
deb_i2c("Read %s ", __func__);
|
||||
|
||||
return (ret = 1) ? (int) b2[0] : -1;
|
||||
}
|
||||
|
||||
static int ix2505v_write(struct ix2505v_state *state, u8 buf[], u8 count)
|
||||
{
|
||||
struct i2c_msg msg[1] = {
|
||||
{ .addr = state->config->tuner_address, .flags = 0,
|
||||
.buf = buf, .len = count },
|
||||
};
|
||||
|
||||
int ret;
|
||||
|
||||
ret = i2c_transfer(state->i2c, msg, 1);
|
||||
|
||||
if (ret != 1) {
|
||||
deb_i2c("%s: i2c error, ret=%d\n", __func__, ret);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ix2505v_release(struct dvb_frontend *fe)
|
||||
{
|
||||
struct ix2505v_state *state = fe->tuner_priv;
|
||||
|
||||
fe->tuner_priv = NULL;
|
||||
kfree(state);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Data write format of the Sharp IX2505V B0017
|
||||
*
|
||||
* byte1: 1 | 1 | 0 | 0 | 0 | 0(MA1)| 0(MA0)| 0
|
||||
* byte2: 0 | BG1 | BG2 | N8 | N7 | N6 | N5 | N4
|
||||
* byte3: N3 | N2 | N1 | A5 | A4 | A3 | A2 | A1
|
||||
* byte4: 1 | 1(C1) | 1(C0) | PD5 | PD4 | TM | 0(RTS)| 1(REF)
|
||||
* byte5: BA2 | BA1 | BA0 | PSC | PD3 |PD2/TS2|DIV/TS1|PD0/TS0
|
||||
*
|
||||
* byte1 = address
|
||||
*
|
||||
* Write order
|
||||
* 1) byte1 -> byte2 -> byte3 -> byte4 -> byte5
|
||||
* 2) byte1 -> byte4 -> byte5 -> byte2 -> byte3
|
||||
* 3) byte1 -> byte2 -> byte3 -> byte4
|
||||
* 4) byte1 -> byte4 -> byte5 -> byte2
|
||||
* 5) byte1 -> byte2 -> byte3
|
||||
* 6) byte1 -> byte4 -> byte5
|
||||
* 7) byte1 -> byte2
|
||||
* 8) byte1 -> byte4
|
||||
*
|
||||
* Recommended Setup
|
||||
* 1 -> 8 -> 6
|
||||
*/
|
||||
|
||||
static int ix2505v_set_params(struct dvb_frontend *fe,
|
||||
struct dvb_frontend_parameters *params)
|
||||
{
|
||||
struct ix2505v_state *state = fe->tuner_priv;
|
||||
u32 frequency = params->frequency;
|
||||
u32 b_w = (params->u.qpsk.symbol_rate * 27) / 32000;
|
||||
u32 div_factor, N , A, x;
|
||||
int ret = 0, len;
|
||||
u8 gain, cc, ref, psc, local_osc, lpf;
|
||||
u8 data[4] = {0};
|
||||
|
||||
if ((frequency < fe->ops.info.frequency_min)
|
||||
|| (frequency > fe->ops.info.frequency_max))
|
||||
return -EINVAL;
|
||||
|
||||
if (state->config->tuner_gain)
|
||||
gain = (state->config->tuner_gain < 4)
|
||||
? state->config->tuner_gain : 0;
|
||||
else
|
||||
gain = 0x0;
|
||||
|
||||
if (state->config->tuner_chargepump)
|
||||
cc = state->config->tuner_chargepump;
|
||||
else
|
||||
cc = 0x3;
|
||||
|
||||
ref = 8; /* REF =1 */
|
||||
psc = 32; /* PSC = 0 */
|
||||
|
||||
div_factor = (frequency * ref) / 40; /* local osc = 4Mhz */
|
||||
x = div_factor / psc;
|
||||
N = x/100;
|
||||
A = ((x - (N * 100)) * psc) / 100;
|
||||
|
||||
data[0] = ((gain & 0x3) << 5) | (N >> 3);
|
||||
data[1] = (N << 5) | (A & 0x1f);
|
||||
data[2] = 0x81 | ((cc & 0x3) << 5) ; /*PD5,PD4 & TM = 0|C1,C0|REF=1*/
|
||||
|
||||
deb_info("Frq=%d x=%d N=%d A=%d \n", frequency, x, N, A);
|
||||
|
||||
if (frequency <= 1065000)
|
||||
local_osc = (6 << 5) | 2;
|
||||
else if (frequency <= 1170000)
|
||||
local_osc = (7 << 5) | 2;
|
||||
else if (frequency <= 1300000)
|
||||
local_osc = (1 << 5);
|
||||
else if (frequency <= 1445000)
|
||||
local_osc = (2 << 5);
|
||||
else if (frequency <= 1607000)
|
||||
local_osc = (3 << 5);
|
||||
else if (frequency <= 1778000)
|
||||
local_osc = (4 << 5);
|
||||
else if (frequency <= 1942000)
|
||||
local_osc = (5 << 5);
|
||||
else /*frequency up to 2150000*/
|
||||
local_osc = (6 << 5);
|
||||
|
||||
data[3] = local_osc; /* all other bits set 0 */
|
||||
|
||||
|
||||
if (b_w <= 10000)
|
||||
lpf = 0xc;
|
||||
else if (b_w <= 12000)
|
||||
lpf = 0x2;
|
||||
else if (b_w <= 14000)
|
||||
lpf = 0xa;
|
||||
else if (b_w <= 16000)
|
||||
lpf = 0x6;
|
||||
else if (b_w <= 18000)
|
||||
lpf = 0xe;
|
||||
else if (b_w <= 20000)
|
||||
lpf = 0x1;
|
||||
else if (b_w <= 22000)
|
||||
lpf = 0x9;
|
||||
else if (b_w <= 24000)
|
||||
lpf = 0x5;
|
||||
else if (b_w <= 26000)
|
||||
lpf = 0xd;
|
||||
else if (b_w <= 28000)
|
||||
lpf = 0x3;
|
||||
else
|
||||
lpf = 0xb;
|
||||
|
||||
deb_info("Osc=%x b_w=%x lpf=%x\n", local_osc, b_w, lpf);
|
||||
deb_info("Data 0=[%x%x%x%x] \n", data[0], data[1], data[2], data[3]);
|
||||
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 1);
|
||||
|
||||
len = sizeof(data);
|
||||
|
||||
ret |= ix2505v_write(state, data, len);
|
||||
|
||||
data[2] |= 0x4; /* set TM = 1 other bits same */
|
||||
|
||||
len = 1;
|
||||
ret |= ix2505v_write(state, &data[2], len); /* write byte 4 only */
|
||||
|
||||
|
||||
msleep(10);
|
||||
|
||||
data[2] |= ((lpf >> 2) & 0x3) << 3; /* lpf */
|
||||
data[3] |= (lpf & 0x3) << 2;
|
||||
|
||||
deb_info("Data 2=[%x%x] \n", data[2], data[3]);
|
||||
|
||||
len = 2;
|
||||
ret |= ix2505v_write(state, &data[2], len); /* write byte 4 & 5 */
|
||||
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
|
||||
if (state->config->min_delay_ms)
|
||||
msleep(state->config->min_delay_ms);
|
||||
|
||||
state->frequency = frequency;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ix2505v_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
||||
{
|
||||
struct ix2505v_state *state = fe->tuner_priv;
|
||||
|
||||
*frequency = state->frequency;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct dvb_tuner_ops ix2505v_tuner_ops = {
|
||||
.info = {
|
||||
.name = "Sharp IX2505V (B0017)",
|
||||
.frequency_min = 950000,
|
||||
.frequency_max = 2175000
|
||||
},
|
||||
.release = ix2505v_release,
|
||||
.set_params = ix2505v_set_params,
|
||||
.get_frequency = ix2505v_get_frequency,
|
||||
};
|
||||
|
||||
struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
|
||||
const struct ix2505v_config *config,
|
||||
struct i2c_adapter *i2c)
|
||||
{
|
||||
struct ix2505v_state *state = NULL;
|
||||
int ret;
|
||||
|
||||
if (NULL == config) {
|
||||
deb_i2c("%s: no config ", __func__);
|
||||
goto error;
|
||||
}
|
||||
|
||||
state = kzalloc(sizeof(struct ix2505v_state), GFP_KERNEL);
|
||||
if (NULL == state)
|
||||
return NULL;
|
||||
|
||||
state->config = config;
|
||||
state->i2c = i2c;
|
||||
|
||||
if (state->config->tuner_write_only) {
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 1);
|
||||
|
||||
ret = ix2505v_read_status_reg(state);
|
||||
|
||||
if (ret & 0x80) {
|
||||
deb_i2c("%s: No IX2505V found\n", __func__);
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (fe->ops.i2c_gate_ctrl)
|
||||
fe->ops.i2c_gate_ctrl(fe, 0);
|
||||
}
|
||||
|
||||
fe->tuner_priv = state;
|
||||
|
||||
memcpy(&fe->ops.tuner_ops, &ix2505v_tuner_ops,
|
||||
sizeof(struct dvb_tuner_ops));
|
||||
deb_i2c("%s: initialization (%s addr=0x%02x) ok\n",
|
||||
__func__, fe->ops.tuner_ops.info.name, config->tuner_address);
|
||||
|
||||
return fe;
|
||||
|
||||
error:
|
||||
ix2505v_release(fe);
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL(ix2505v_attach);
|
||||
|
||||
module_param_named(debug, ix2505v_debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
|
||||
MODULE_DESCRIPTION("DVB IX2505V tuner driver");
|
||||
MODULE_AUTHOR("Malcolm Priestley");
|
||||
MODULE_LICENSE("GPL");
|
||||
64
drivers/media/dvb/frontends/ix2505v.h
Normal file
64
drivers/media/dvb/frontends/ix2505v.h
Normal file
@ -0,0 +1,64 @@
|
||||
/**
|
||||
* Driver for Sharp IX2505V (marked B0017) DVB-S silicon tuner
|
||||
*
|
||||
* Copyright (C) 2010 Malcolm Priestley
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License Version 2, as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#ifndef DVB_IX2505V_H
|
||||
#define DVB_IX2505V_H
|
||||
|
||||
#include <linux/i2c.h>
|
||||
#include "dvb_frontend.h"
|
||||
|
||||
/**
|
||||
* Attach a ix2505v tuner to the supplied frontend structure.
|
||||
*
|
||||
* @param fe Frontend to attach to.
|
||||
* @param config ix2505v_config structure
|
||||
* @return FE pointer on success, NULL on failure.
|
||||
*/
|
||||
|
||||
struct ix2505v_config {
|
||||
u8 tuner_address;
|
||||
|
||||
/*Baseband AMP gain control 0/1=0dB(default) 2=-2bB 3=-4dB */
|
||||
u8 tuner_gain;
|
||||
|
||||
/*Charge pump output +/- 0=120 1=260 2=555 3=1200(default) */
|
||||
u8 tuner_chargepump;
|
||||
|
||||
/* delay after tune */
|
||||
int min_delay_ms;
|
||||
|
||||
/* disables reads*/
|
||||
u8 tuner_write_only;
|
||||
|
||||
};
|
||||
|
||||
#if defined(CONFIG_DVB_IX2505V) || \
|
||||
(defined(CONFIG_DVB_IX2505V_MODULE) && defined(MODULE))
|
||||
extern struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
|
||||
const struct ix2505v_config *config, struct i2c_adapter *i2c);
|
||||
#else
|
||||
static inline struct dvb_frontend *ix2505v_attach(struct dvb_frontend *fe,
|
||||
const struct ix2505v_config *config, struct i2c_adapter *i2c)
|
||||
{
|
||||
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* DVB_IX2505V_H */
|
||||
Loading…
Reference in New Issue
Block a user