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DVB (2445): Added demodulator driver for Nova-S-Plus and Nova-SE2 DVB-S support.
- Added demodulator driver for Nova-S-Plus and Nova-SE2 DVB-S support. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
This commit is contained in:
Steve Toth
Mauro Carvalho Chehab
parent
36cb557a2f
commit
b79cb6531d
@ -16,6 +16,12 @@ config DVB_CX24110
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help
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A DVB-S tuner module. Say Y when you want to support this frontend.
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config DVB_CX24123
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tristate "Conexant CX24123 based"
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depends on DVB_CORE
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help
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A DVB-S tuner module. Say Y when you want to support this frontend.
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config DVB_TDA8083
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tristate "Philips TDA8083 based"
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depends on DVB_CORE
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@ -32,3 +32,4 @@ obj-$(CONFIG_DVB_OR51132) += or51132.o
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obj-$(CONFIG_DVB_BCM3510) += bcm3510.o
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obj-$(CONFIG_DVB_S5H1420) += s5h1420.o
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obj-$(CONFIG_DVB_LGDT330X) += lgdt330x.o
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obj-$(CONFIG_DVB_CX24123) += cx24123.o
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694
drivers/media/dvb/frontends/cx24123.c
Normal file
694
drivers/media/dvb/frontends/cx24123.c
Normal file
@ -0,0 +1,694 @@
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/*
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Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
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Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/init.h>
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#include "dvb_frontend.h"
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#include "cx24123.h"
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static int debug;
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#define dprintk(args...) \
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do { \
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if (debug) printk (KERN_DEBUG "cx24123: " args); \
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} while (0)
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struct cx24123_state {
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struct i2c_adapter* i2c;
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struct dvb_frontend_ops ops;
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const struct cx24123_config* config;
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struct dvb_frontend frontend;
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u32 lastber;
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u16 snr;
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u8 lnbreg;
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/* Some PLL specifics for tuning */
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u32 VCAarg;
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u32 VGAarg;
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u32 bandselectarg;
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u32 pllarg;
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/* The Demod/Tuner can't easily provide these, we cache them */
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u32 currentfreq;
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u32 currentsymbolrate;
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};
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static struct {
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u8 reg;
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u8 data;
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} cx24123_regdata[] =
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{
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{0x00, 0x03}, /* Reset system */
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{0x00, 0x00}, /* Clear reset */
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{0x01, 0x3b}, /* Apply sensible defaults, from an i2c sniffer */
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{0x03, 0x07},
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{0x04, 0x10},
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{0x05, 0x04},
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{0x06, 0x31},
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{0x0d, 0x02},
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{0x0e, 0x03},
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{0x0f, 0xfe},
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{0x10, 0x01},
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{0x14, 0x01},
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{0x15, 0x98},
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{0x16, 0x00},
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{0x17, 0x01},
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{0x1b, 0x05},
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{0x1c, 0x80},
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{0x1d, 0x00},
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{0x1e, 0x00},
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{0x20, 0x41},
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{0x21, 0x15},
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{0x27, 0x14},
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{0x28, 0x46},
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{0x29, 0x00},
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{0x2a, 0xb0},
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{0x2b, 0x73},
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{0x2c, 0x00},
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{0x2d, 0x00},
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{0x2e, 0x00},
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{0x2f, 0x00},
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{0x30, 0x00},
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{0x31, 0x00},
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{0x32, 0x8c},
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{0x33, 0x00},
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{0x34, 0x00},
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{0x35, 0x03},
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{0x36, 0x02},
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{0x37, 0x3a},
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{0x3a, 0x00}, /* Enable AGC accumulator */
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{0x44, 0x00},
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{0x45, 0x00},
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{0x46, 0x05},
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{0x56, 0x41},
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{0x57, 0xff},
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{0x67, 0x83},
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};
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static int cx24123_writereg(struct cx24123_state* state, int reg, int data)
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{
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u8 buf[] = { reg, data };
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struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf, .len = 2 };
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int err;
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk("%s: writereg error(err == %i, reg == 0x%02x,"
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" data == 0x%02x)\n", __FUNCTION__, err, reg, data);
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return -EREMOTEIO;
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}
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return 0;
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}
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static int cx24123_writelnbreg(struct cx24123_state* state, int reg, int data)
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{
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u8 buf[] = { reg, data };
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/* fixme: put the intersil addr int the config */
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struct i2c_msg msg = { .addr = 0x08, .flags = 0, .buf = buf, .len = 2 };
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int err;
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if ((err = i2c_transfer(state->i2c, &msg, 1)) != 1) {
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printk("%s: writelnbreg error (err == %i, reg == 0x%02x,"
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" data == 0x%02x)\n", __FUNCTION__, err, reg, data);
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return -EREMOTEIO;
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}
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/* cache the write, no way to read back */
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state->lnbreg = data;
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return 0;
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}
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static int cx24123_readreg(struct cx24123_state* state, u8 reg)
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{
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int ret;
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u8 b0[] = { reg };
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u8 b1[] = { 0 };
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struct i2c_msg msg[] = {
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{ .addr = state->config->demod_address, .flags = 0, .buf = b0, .len = 1 },
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{ .addr = state->config->demod_address, .flags = I2C_M_RD, .buf = b1, .len = 1 }
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};
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ret = i2c_transfer(state->i2c, msg, 2);
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if (ret != 2) {
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printk("%s: reg=0x%x (error=%d)\n", __FUNCTION__, reg, ret);
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return ret;
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}
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return b1[0];
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}
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static int cx24123_readlnbreg(struct cx24123_state* state, u8 reg)
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{
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return state->lnbreg;
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}
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static int cx24123_set_inversion(struct cx24123_state* state, fe_spectral_inversion_t inversion)
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{
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switch (inversion) {
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case INVERSION_OFF:
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cx24123_writereg(state, 0x0e, cx24123_readreg(state, 0x0e) & 0x7f);
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cx24123_writereg(state, 0x10, cx24123_readreg(state, 0x10) | 0x80);
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break;
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case INVERSION_ON:
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cx24123_writereg(state, 0x0e, cx24123_readreg(state, 0x0e) | 0x80);
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cx24123_writereg(state, 0x10, cx24123_readreg(state, 0x10) | 0x80);
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break;
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case INVERSION_AUTO:
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cx24123_writereg(state, 0x10, cx24123_readreg(state, 0x10) & 0x7f);
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int cx24123_get_inversion(struct cx24123_state* state, fe_spectral_inversion_t *inversion)
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{
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u8 val;
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val = cx24123_readreg(state, 0x1b) >> 7;
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if (val == 0)
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*inversion=INVERSION_OFF;
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else
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*inversion=INVERSION_ON;
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return 0;
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}
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static int cx24123_set_fec(struct cx24123_state* state, fe_code_rate_t fec)
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{
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if ( (fec < FEC_NONE) || (fec > FEC_AUTO) )
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fec=FEC_AUTO;
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/* Hardware has 5/11 and 3/5 but are never unused */
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switch (fec) {
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case FEC_NONE:
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return cx24123_writereg(state, 0x0f,0x01);
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case FEC_1_2:
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return cx24123_writereg(state, 0x0f, 0x02);
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case FEC_2_3:
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return cx24123_writereg(state, 0x0f, 0x04);
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case FEC_3_4:
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return cx24123_writereg(state, 0x0f, 0x08);
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case FEC_5_6:
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return cx24123_writereg(state, 0x0f, 0x20);
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case FEC_7_8:
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return cx24123_writereg(state, 0x0f, 0x80);
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case FEC_AUTO:
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return cx24123_writereg(state, 0x0f, 0xae);
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default:
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return -EOPNOTSUPP;
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}
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}
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static int cx24123_get_fec(struct cx24123_state* state, fe_code_rate_t *fec)
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{
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u8 val;
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val = cx24123_readreg (state, 0x1b) & 0x07;
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switch (val) {
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case 1:
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*fec=FEC_1_2;
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return 0;
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case 3:
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*fec=FEC_2_3;
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return 0;
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case 4:
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*fec=FEC_3_4;
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return 0;
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case 5:
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*fec=FEC_4_5;
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return 0;
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case 6:
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*fec=FEC_5_6;
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return 0;
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case 7:
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*fec=FEC_7_8;
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return 0;
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case 2: /* *fec=FEC_3_5; return 0; */
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case 0: /* *fec=FEC_5_11; return 0; */
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*fec=FEC_AUTO;
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return 0;
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default:
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*fec=FEC_NONE; return 0;
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}
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return -EREMOTEIO;
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}
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/* fixme: Symbol rates < 3MSps may not work because of precision loss */
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static int cx24123_set_symbolrate(struct cx24123_state* state, u32 srate)
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{
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u32 val;
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val = (srate/1185)*100;
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/* Compensate for scaling up, by removing 17 symbols per 1Msps */
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val = val - (17*(srate / 1000000));
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cx24123_writereg(state, 0x08, (val >>16) & 0xff );
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cx24123_writereg(state, 0x09, (val >> 8) & 0xff );
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cx24123_writereg(state, 0x0a, (val ) & 0xff );
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return 0;
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}
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/*
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* Based on the required frequency and symbolrate, the tuner AGC has to be configured
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* and the correct band selected. Calculate those values
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*/
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static int cx24123_pll_calculate(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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u32 ndiv=0, adiv=0, vco_div=0;
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int i=0;
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/* Defaults for low freq, low rate */
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state->VCAarg = cx24123_AGC_vals[0].VCAprogdata;
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state->VGAarg = cx24123_AGC_vals[0].VGAprogdata;
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state->bandselectarg = cx24123_bandselect_vals[0].progdata;
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vco_div = cx24123_bandselect_vals[0].VCOdivider;
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/* For the given symbolerate, determine the VCA and VGA programming bits */
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for (i=0; i < sizeof(cx24123_AGC_vals) / sizeof(cx24123_AGC_vals[0]); i++)
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{
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if ((cx24123_AGC_vals[i].symbolrate_low <= p->u.qpsk.symbol_rate) &&
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(cx24123_AGC_vals[i].symbolrate_high >= p->u.qpsk.symbol_rate) ) {
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state->VCAarg = cx24123_AGC_vals[i].VCAprogdata;
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state->VGAarg = cx24123_AGC_vals[i].VGAprogdata;
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}
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}
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/* For the given frequency, determine the bandselect programming bits */
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for (i=0; i < sizeof(cx24123_bandselect_vals) / sizeof(cx24123_bandselect_vals[0]); i++)
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{
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if ((cx24123_bandselect_vals[i].freq_low <= p->frequency) &&
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(cx24123_bandselect_vals[i].freq_high >= p->frequency) ) {
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state->bandselectarg = cx24123_bandselect_vals[i].progdata;
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vco_div = cx24123_bandselect_vals[i].VCOdivider;
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}
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}
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/* Determine the N/A dividers for the requested lband freq (in kHz). */
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/* Note: 10111 (kHz) is the Crystal Freq and divider of 10. */
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ndiv = ( ((p->frequency * vco_div) / (10111 / 10) / 2) / 32) & 0x1ff;
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adiv = ( ((p->frequency * vco_div) / (10111 / 10) / 2) % 32) & 0x1f;
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if (adiv == 0)
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adiv++;
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/* determine the correct pll frequency values. */
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/* Command 11, refdiv 11, cpump polarity 1, cpump current 3mA 10. */
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state->pllarg = (3 << 19) | (3 << 17) | (1 << 16) | (2 << 14);
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state->pllarg |= (ndiv << 5) | adiv;
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return 0;
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}
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/*
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* Tuner data is 21 bits long, must be left-aligned in data.
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* Tuner cx24109 is written through a dedicated 3wire interface on the demod chip.
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*/
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static int cx24123_pll_writereg(struct dvb_frontend* fe, struct dvb_frontend_parameters *p, u32 data)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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u8 timeout=0;
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/* align the 21 bytes into to bit23 boundary */
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data = data << 3;
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/* Reset the demod pll word length to 0x15 bits */
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cx24123_writereg(state, 0x21, 0x15);
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timeout=0;
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/* write the msb 8 bits, wait for the send to be completed */
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cx24123_writereg(state, 0x22, (data>>16) & 0xff);
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while ( ( cx24123_readreg(state, 0x20) & 0x40 ) == 0 )
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{
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/* Safety - No reason why the write should not complete, and we never get here, avoid hang */
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if (timeout++ >= 4) {
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printk("%s: demodulator is no longer responding, aborting.\n",__FUNCTION__);
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return -EREMOTEIO;
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}
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msleep(500);
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}
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timeout=0;
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/* send another 8 bytes, wait for the send to be completed */
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cx24123_writereg(state, 0x22, (data>>8) & 0xff );
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while ( (cx24123_readreg(state, 0x20) & 0x40 ) == 0 )
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{
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/* Safety - No reason why the write should not complete, and we never get here, avoid hang */
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if (timeout++ >= 4) {
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printk("%s: demodulator is not responding, possibly hung, aborting.\n",__FUNCTION__);
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return -EREMOTEIO;
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}
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msleep(500);
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}
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timeout=0;
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/* send the lower 5 bits of this byte, padded with 3 LBB, wait for the send to be completed */
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cx24123_writereg(state, 0x22, (data) & 0xff );
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while ((cx24123_readreg(state, 0x20) & 0x80))
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{
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/* Safety - No reason why the write should not complete, and we never get here, avoid hang */
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if (timeout++ >= 4) {
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printk("%s: demodulator is not responding, possibly hung, aborting.\n",__FUNCTION__);
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return -EREMOTEIO;
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}
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msleep(500);
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}
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/* Trigger the demod to configure the tuner */
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cx24123_writereg(state, 0x20, cx24123_readreg(state, 0x20) | 2);
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cx24123_writereg(state, 0x20, cx24123_readreg(state, 0x20) & 0xfd);
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return 0;
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}
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static int cx24123_pll_tune(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
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{
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struct cx24123_state *state = fe->demodulator_priv;
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if (cx24123_pll_calculate(fe, p)!=0) {
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printk("%s: cx24123_pll_calcutate failed\n",__FUNCTION__);
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return -EINVAL;
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}
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/* Write the new VCO/VGA */
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cx24123_pll_writereg(fe, p, state->VCAarg);
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cx24123_pll_writereg(fe, p, state->VGAarg);
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/* Write the new bandselect and pll args */
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cx24123_pll_writereg(fe, p, state->bandselectarg);
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cx24123_pll_writereg(fe, p, state->pllarg);
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return 0;
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}
|
||||
|
||||
static int cx24123_initfe(struct dvb_frontend* fe)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
int i;
|
||||
|
||||
/* Configure the demod to a good set of defaults */
|
||||
for (i=0; i < sizeof(cx24123_regdata) / sizeof(cx24123_regdata[0]); i++)
|
||||
cx24123_writereg(state, cx24123_regdata[i].reg, cx24123_regdata[i].data);
|
||||
|
||||
if (state->config->pll_init)
|
||||
state->config->pll_init(fe);
|
||||
|
||||
/* Configure the LNB for 14V */
|
||||
cx24123_writelnbreg(state, 0x0, 0x2a);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
u8 val;
|
||||
|
||||
val = cx24123_readlnbreg(state, 0x0);
|
||||
|
||||
switch (voltage) {
|
||||
case SEC_VOLTAGE_13:
|
||||
return cx24123_writelnbreg(state, 0x0, val & 0x32); /* V 13v */
|
||||
case SEC_VOLTAGE_18:
|
||||
return cx24123_writelnbreg(state, 0x0, val | 0x04); /* H 18v */
|
||||
case SEC_VOLTAGE_OFF:
|
||||
return cx24123_writelnbreg(state, 0x0, val & 0x30);
|
||||
default:
|
||||
return -EINVAL;
|
||||
};
|
||||
}
|
||||
|
||||
static int cx24123_send_diseqc_msg(struct dvb_frontend* fe,
|
||||
struct dvb_diseqc_master_cmd *cmd)
|
||||
{
|
||||
/* fixme: Implement diseqc */
|
||||
printk("%s: No support yet\n",__FUNCTION__);
|
||||
|
||||
return -ENOTSUPP;
|
||||
}
|
||||
|
||||
static int cx24123_read_status(struct dvb_frontend* fe, fe_status_t* status)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
|
||||
int sync = cx24123_readreg(state, 0x14);
|
||||
int lock = cx24123_readreg(state, 0x20);
|
||||
|
||||
*status = 0;
|
||||
if (lock & 0x01)
|
||||
*status |= FE_HAS_CARRIER | FE_HAS_SIGNAL;
|
||||
if (sync & 0x04)
|
||||
*status |= FE_HAS_VITERBI;
|
||||
if (sync & 0x08)
|
||||
*status |= FE_HAS_CARRIER;
|
||||
if (sync & 0x80)
|
||||
*status |= FE_HAS_SYNC | FE_HAS_LOCK;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Configured to return the measurement of errors in blocks, because no UCBLOCKS value
|
||||
* is available, so this value doubles up to satisfy both measurements
|
||||
*/
|
||||
static int cx24123_read_ber(struct dvb_frontend* fe, u32* ber)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
|
||||
state->lastber =
|
||||
((cx24123_readreg(state, 0x1c) & 0x3f) << 16) |
|
||||
(cx24123_readreg(state, 0x1d) << 8 |
|
||||
cx24123_readreg(state, 0x1e));
|
||||
|
||||
/* Do the signal quality processing here, it's derived from the BER. */
|
||||
/* Scale the BER from a 24bit to a SNR 16 bit where higher = better */
|
||||
if (state->lastber < 5000)
|
||||
state->snr = 655*100;
|
||||
else if ( (state->lastber >= 5000) && (state->lastber < 55000) )
|
||||
state->snr = 655*90;
|
||||
else if ( (state->lastber >= 55000) && (state->lastber < 150000) )
|
||||
state->snr = 655*80;
|
||||
else if ( (state->lastber >= 150000) && (state->lastber < 250000) )
|
||||
state->snr = 655*70;
|
||||
else if ( (state->lastber >= 250000) && (state->lastber < 450000) )
|
||||
state->snr = 655*65;
|
||||
else
|
||||
state->snr = 0;
|
||||
|
||||
*ber = state->lastber;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_read_signal_strength(struct dvb_frontend* fe, u16* signal_strength)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
*signal_strength = cx24123_readreg(state, 0x3b) << 8; /* larger = better */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_read_snr(struct dvb_frontend* fe, u16* snr)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
*snr = state->snr;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
*ucblocks = state->lastber;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
|
||||
if (state->config->set_ts_params)
|
||||
state->config->set_ts_params(fe, 0);
|
||||
|
||||
state->currentfreq=p->frequency;
|
||||
state->currentsymbolrate=p->u.qpsk.symbol_rate;
|
||||
|
||||
cx24123_set_inversion(state, p->inversion);
|
||||
cx24123_set_fec(state, p->u.qpsk.fec_inner);
|
||||
cx24123_set_symbolrate(state, p->u.qpsk.symbol_rate);
|
||||
cx24123_pll_tune(fe, p);
|
||||
|
||||
/* Enable automatic aquisition and reset cycle */
|
||||
cx24123_writereg(state, 0x03, (cx24123_readreg(state, 0x03) | 0x07) );
|
||||
cx24123_writereg(state, 0x00, 0x10);
|
||||
cx24123_writereg(state, 0x00, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
|
||||
if (cx24123_get_inversion(state, &p->inversion) != 0) {
|
||||
printk("%s: Failed to get inversion status\n",__FUNCTION__);
|
||||
return -EREMOTEIO;
|
||||
}
|
||||
if (cx24123_get_fec(state, &p->u.qpsk.fec_inner) != 0) {
|
||||
printk("%s: Failed to get fec status\n",__FUNCTION__);
|
||||
return -EREMOTEIO;
|
||||
}
|
||||
p->frequency = state->currentfreq;
|
||||
p->u.qpsk.symbol_rate = state->currentsymbolrate;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cx24123_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
|
||||
{
|
||||
struct cx24123_state *state = fe->demodulator_priv;
|
||||
u8 val;
|
||||
|
||||
val = cx24123_readlnbreg(state, 0x0);
|
||||
|
||||
switch (tone) {
|
||||
case SEC_TONE_ON:
|
||||
return cx24123_writelnbreg(state, 0x0, val | 0x10);
|
||||
case SEC_TONE_OFF:
|
||||
return cx24123_writelnbreg(state, 0x0, val & 0x2f);
|
||||
default:
|
||||
printk("%s: CASE reached default with tone=%d\n", __FUNCTION__, tone);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
static void cx24123_release(struct dvb_frontend* fe)
|
||||
{
|
||||
struct cx24123_state* state = fe->demodulator_priv;
|
||||
dprintk("%s\n",__FUNCTION__);
|
||||
kfree(state);
|
||||
}
|
||||
|
||||
static struct dvb_frontend_ops cx24123_ops;
|
||||
|
||||
struct dvb_frontend* cx24123_attach(const struct cx24123_config* config, struct i2c_adapter* i2c)
|
||||
{
|
||||
struct cx24123_state* state = NULL;
|
||||
int ret;
|
||||
|
||||
dprintk("%s\n",__FUNCTION__);
|
||||
|
||||
/* allocate memory for the internal state */
|
||||
state = kmalloc(sizeof(struct cx24123_state), GFP_KERNEL);
|
||||
if (state == NULL) {
|
||||
printk("Unable to kmalloc\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* setup the state */
|
||||
state->config = config;
|
||||
state->i2c = i2c;
|
||||
memcpy(&state->ops, &cx24123_ops, sizeof(struct dvb_frontend_ops));
|
||||
state->lastber = 0;
|
||||
state->snr = 0;
|
||||
state->lnbreg = 0;
|
||||
state->VCAarg = 0;
|
||||
state->VGAarg = 0;
|
||||
state->bandselectarg = 0;
|
||||
state->pllarg = 0;
|
||||
state->currentfreq = 0;
|
||||
state->currentsymbolrate = 0;
|
||||
|
||||
/* check if the demod is there */
|
||||
ret = cx24123_readreg(state, 0x00);
|
||||
if ((ret != 0xd1) && (ret != 0xe1)) {
|
||||
printk("Version != d1 or e1\n");
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* create dvb_frontend */
|
||||
state->frontend.ops = &state->ops;
|
||||
state->frontend.demodulator_priv = state;
|
||||
return &state->frontend;
|
||||
|
||||
error:
|
||||
kfree(state);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct dvb_frontend_ops cx24123_ops = {
|
||||
|
||||
.info = {
|
||||
.name = "Conexant CX24123/CX24109",
|
||||
.type = FE_QPSK,
|
||||
.frequency_min = 950000,
|
||||
.frequency_max = 2150000,
|
||||
.frequency_stepsize = 1011, /* kHz for QPSK frontends */
|
||||
.frequency_tolerance = 29500,
|
||||
.symbol_rate_min = 1000000,
|
||||
.symbol_rate_max = 45000000,
|
||||
.caps = FE_CAN_INVERSION_AUTO |
|
||||
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
|
||||
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
|
||||
FE_CAN_QPSK | FE_CAN_RECOVER
|
||||
},
|
||||
|
||||
.release = cx24123_release,
|
||||
|
||||
.init = cx24123_initfe,
|
||||
.set_frontend = cx24123_set_frontend,
|
||||
.get_frontend = cx24123_get_frontend,
|
||||
.read_status = cx24123_read_status,
|
||||
.read_ber = cx24123_read_ber,
|
||||
.read_signal_strength = cx24123_read_signal_strength,
|
||||
.read_snr = cx24123_read_snr,
|
||||
.read_ucblocks = cx24123_read_ucblocks,
|
||||
.diseqc_send_master_cmd = cx24123_send_diseqc_msg,
|
||||
.set_tone = cx24123_set_tone,
|
||||
.set_voltage = cx24123_set_voltage,
|
||||
};
|
||||
|
||||
module_param(debug, int, 0644);
|
||||
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
|
||||
|
||||
MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24123/cx24109 hardware");
|
||||
MODULE_AUTHOR("Steven Toth");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
EXPORT_SYMBOL(cx24123_attach);
|
||||
|
||||
185
drivers/media/dvb/frontends/cx24123.h
Normal file
185
drivers/media/dvb/frontends/cx24123.h
Normal file
@ -0,0 +1,185 @@
|
||||
/*
|
||||
Conexant cx24123/cx24109 - DVB QPSK Satellite demod/tuner driver
|
||||
|
||||
Copyright (C) 2005 Steven Toth <stoth@hauppauge.com>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
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 CX24123_H
|
||||
#define CX24123_H
|
||||
|
||||
#include <linux/dvb/frontend.h>
|
||||
|
||||
struct cx24123_config
|
||||
{
|
||||
/* the demodulator's i2c address */
|
||||
u8 demod_address;
|
||||
|
||||
/* PLL maintenance */
|
||||
int (*pll_init)(struct dvb_frontend* fe);
|
||||
int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
|
||||
|
||||
/* Need to set device param for start_dma */
|
||||
int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
|
||||
};
|
||||
|
||||
/* Various tuner defaults need to be established for a given symbol rate Sps */
|
||||
struct
|
||||
{
|
||||
u32 symbolrate_low;
|
||||
u32 symbolrate_high;
|
||||
u32 VCAslope;
|
||||
u32 VCAoffset;
|
||||
u32 VGA1offset;
|
||||
u32 VGA2offset;
|
||||
u32 VCAprogdata;
|
||||
u32 VGAprogdata;
|
||||
} cx24123_AGC_vals[] =
|
||||
{
|
||||
{
|
||||
.symbolrate_low = 1000000,
|
||||
.symbolrate_high = 4999999,
|
||||
.VCAslope = 0x07,
|
||||
.VCAoffset = 0x0f,
|
||||
.VGA1offset = 0x1f8,
|
||||
.VGA2offset = 0x1f8,
|
||||
.VGAprogdata = (2 << 18) | (0x1f8 << 9) | 0x1f8,
|
||||
.VCAprogdata = (4 << 18) | (0x07 << 9) | 0x07,
|
||||
},
|
||||
{
|
||||
.symbolrate_low = 5000000,
|
||||
.symbolrate_high = 14999999,
|
||||
.VCAslope = 0x1f,
|
||||
.VCAoffset = 0x1f,
|
||||
.VGA1offset = 0x1e0,
|
||||
.VGA2offset = 0x180,
|
||||
.VGAprogdata = (2 << 18) | (0x180 << 9) | 0x1e0,
|
||||
.VCAprogdata = (4 << 18) | (0x07 << 9) | 0x1f,
|
||||
},
|
||||
{
|
||||
.symbolrate_low = 15000000,
|
||||
.symbolrate_high = 45000000,
|
||||
.VCAslope = 0x3f,
|
||||
.VCAoffset = 0x3f,
|
||||
.VGA1offset = 0x180,
|
||||
.VGA2offset = 0x100,
|
||||
.VGAprogdata = (2 << 18) | (0x100 << 9) | 0x180,
|
||||
.VCAprogdata = (4 << 18) | (0x07 << 9) | 0x3f,
|
||||
},
|
||||
};
|
||||
|
||||
/*
|
||||
* Various tuner defaults need to be established for a given frequency kHz.
|
||||
* fixme: The bounds on the bands do not match the doc in real life.
|
||||
* fixme: Some of them have been moved, other might need adjustment.
|
||||
*/
|
||||
struct
|
||||
{
|
||||
u32 freq_low;
|
||||
u32 freq_high;
|
||||
u32 bandselect;
|
||||
u32 VCOdivider;
|
||||
u32 VCOnumber;
|
||||
u32 progdata;
|
||||
} cx24123_bandselect_vals[] =
|
||||
{
|
||||
{
|
||||
.freq_low = 950000,
|
||||
.freq_high = 1018999,
|
||||
.bandselect = 0x40,
|
||||
.VCOdivider = 4,
|
||||
.VCOnumber = 7,
|
||||
.progdata = (0 << 18) | (0 << 9) | 0x40,
|
||||
},
|
||||
{
|
||||
.freq_low = 1019000,
|
||||
.freq_high = 1074999,
|
||||
.bandselect = 0x80,
|
||||
.VCOdivider = 4,
|
||||
.VCOnumber = 8,
|
||||
.progdata = (0 << 18) | (0 << 9) | 0x80,
|
||||
},
|
||||
{
|
||||
.freq_low = 1075000,
|
||||
.freq_high = 1227999,
|
||||
.bandselect = 0x01,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 1,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x01,
|
||||
},
|
||||
{
|
||||
.freq_low = 1228000,
|
||||
.freq_high = 1349999,
|
||||
.bandselect = 0x02,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 2,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x02,
|
||||
},
|
||||
{
|
||||
.freq_low = 1350000,
|
||||
.freq_high = 1481999,
|
||||
.bandselect = 0x04,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 3,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x04,
|
||||
},
|
||||
{
|
||||
.freq_low = 1482000,
|
||||
.freq_high = 1595999,
|
||||
.bandselect = 0x08,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 4,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x08,
|
||||
},
|
||||
{
|
||||
.freq_low = 1596000,
|
||||
.freq_high = 1717999,
|
||||
.bandselect = 0x10,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 5,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x10,
|
||||
},
|
||||
{
|
||||
.freq_low = 1718000,
|
||||
.freq_high = 1855999,
|
||||
.bandselect = 0x20,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 6,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x20,
|
||||
},
|
||||
{
|
||||
.freq_low = 1856000,
|
||||
.freq_high = 2035999,
|
||||
.bandselect = 0x40,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 7,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x40,
|
||||
},
|
||||
{
|
||||
.freq_low = 2036000,
|
||||
.freq_high = 2149999,
|
||||
.bandselect = 0x80,
|
||||
.VCOdivider = 2,
|
||||
.VCOnumber = 8,
|
||||
.progdata = (0 << 18) | (1 << 9) | 0x80,
|
||||
},
|
||||
};
|
||||
|
||||
extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
|
||||
struct i2c_adapter* i2c);
|
||||
|
||||
#endif /* CX24123_H */
|
||||
|
||||
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Block a user