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Diffstat (limited to 'drivers/media/dvb/frontends/m88rs2000.c')
-rw-r--r--drivers/media/dvb/frontends/m88rs2000.c919
1 files changed, 0 insertions, 919 deletions
diff --git a/drivers/media/dvb/frontends/m88rs2000.c b/drivers/media/dvb/frontends/m88rs2000.c
deleted file mode 100644
index 633815ed90ca..000000000000
--- a/drivers/media/dvb/frontends/m88rs2000.c
+++ /dev/null
@@ -1,919 +0,0 @@
-/*
- Driver for M88RS2000 demodulator and tuner
-
- Copyright (C) 2012 Malcolm Priestley (tvboxspy@gmail.com)
- Beta Driver
-
- Include various calculation code from DS3000 driver.
- Copyright (C) 2009 Konstantin Dimitrov.
-
- 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.
-
-*/
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/jiffies.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-
-
-#include "dvb_frontend.h"
-#include "m88rs2000.h"
-
-struct m88rs2000_state {
- struct i2c_adapter *i2c;
- const struct m88rs2000_config *config;
- struct dvb_frontend frontend;
- u8 no_lock_count;
- u32 tuner_frequency;
- u32 symbol_rate;
- fe_code_rate_t fec_inner;
- u8 tuner_level;
- int errmode;
-};
-
-static int m88rs2000_debug;
-
-module_param_named(debug, m88rs2000_debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
-
-#define dprintk(level, args...) do { \
- if (level & m88rs2000_debug) \
- printk(KERN_DEBUG "m88rs2000-fe: " args); \
-} while (0)
-
-#define deb_info(args...) dprintk(0x01, args)
-#define info(format, arg...) \
- printk(KERN_INFO "m88rs2000-fe: " format "\n" , ## arg)
-
-static int m88rs2000_writereg(struct m88rs2000_state *state, u8 tuner,
- u8 reg, u8 data)
-{
- int ret;
- u8 addr = (tuner == 0) ? state->config->tuner_addr :
- state->config->demod_addr;
- u8 buf[] = { reg, data };
- struct i2c_msg msg = {
- .addr = addr,
- .flags = 0,
- .buf = buf,
- .len = 2
- };
-
- ret = i2c_transfer(state->i2c, &msg, 1);
-
- if (ret != 1)
- deb_info("%s: writereg error (reg == 0x%02x, val == 0x%02x, "
- "ret == %i)\n", __func__, reg, data, ret);
-
- return (ret != 1) ? -EREMOTEIO : 0;
-}
-
-static int m88rs2000_demod_write(struct m88rs2000_state *state, u8 reg, u8 data)
-{
- return m88rs2000_writereg(state, 1, reg, data);
-}
-
-static int m88rs2000_tuner_write(struct m88rs2000_state *state, u8 reg, u8 data)
-{
- m88rs2000_demod_write(state, 0x81, 0x84);
- udelay(10);
- return m88rs2000_writereg(state, 0, reg, data);
-
-}
-
-static int m88rs2000_write(struct dvb_frontend *fe, const u8 buf[], int len)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
-
- if (len != 2)
- return -EINVAL;
-
- return m88rs2000_writereg(state, 1, buf[0], buf[1]);
-}
-
-static u8 m88rs2000_readreg(struct m88rs2000_state *state, u8 tuner, u8 reg)
-{
- int ret;
- u8 b0[] = { reg };
- u8 b1[] = { 0 };
- u8 addr = (tuner == 0) ? state->config->tuner_addr :
- state->config->demod_addr;
- struct i2c_msg msg[] = {
- {
- .addr = addr,
- .flags = 0,
- .buf = b0,
- .len = 1
- }, {
- .addr = addr,
- .flags = I2C_M_RD,
- .buf = b1,
- .len = 1
- }
- };
-
- ret = i2c_transfer(state->i2c, msg, 2);
-
- if (ret != 2)
- deb_info("%s: readreg error (reg == 0x%02x, ret == %i)\n",
- __func__, reg, ret);
-
- return b1[0];
-}
-
-static u8 m88rs2000_demod_read(struct m88rs2000_state *state, u8 reg)
-{
- return m88rs2000_readreg(state, 1, reg);
-}
-
-static u8 m88rs2000_tuner_read(struct m88rs2000_state *state, u8 reg)
-{
- m88rs2000_demod_write(state, 0x81, 0x85);
- udelay(10);
- return m88rs2000_readreg(state, 0, reg);
-}
-
-static int m88rs2000_set_symbolrate(struct dvb_frontend *fe, u32 srate)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- int ret;
- u32 temp;
- u8 b[3];
-
- if ((srate < 1000000) || (srate > 45000000))
- return -EINVAL;
-
- temp = srate / 1000;
- temp *= 11831;
- temp /= 68;
- temp -= 3;
-
- b[0] = (u8) (temp >> 16) & 0xff;
- b[1] = (u8) (temp >> 8) & 0xff;
- b[2] = (u8) temp & 0xff;
- ret = m88rs2000_demod_write(state, 0x93, b[2]);
- ret |= m88rs2000_demod_write(state, 0x94, b[1]);
- ret |= m88rs2000_demod_write(state, 0x95, b[0]);
-
- deb_info("m88rs2000: m88rs2000_set_symbolrate\n");
- return ret;
-}
-
-static int m88rs2000_send_diseqc_msg(struct dvb_frontend *fe,
- struct dvb_diseqc_master_cmd *m)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
-
- int i;
- u8 reg;
- deb_info("%s\n", __func__);
- m88rs2000_demod_write(state, 0x9a, 0x30);
- reg = m88rs2000_demod_read(state, 0xb2);
- reg &= 0x3f;
- m88rs2000_demod_write(state, 0xb2, reg);
- for (i = 0; i < m->msg_len; i++)
- m88rs2000_demod_write(state, 0xb3 + i, m->msg[i]);
-
- reg = m88rs2000_demod_read(state, 0xb1);
- reg &= 0x87;
- reg |= ((m->msg_len - 1) << 3) | 0x07;
- reg &= 0x7f;
- m88rs2000_demod_write(state, 0xb1, reg);
-
- for (i = 0; i < 15; i++) {
- if ((m88rs2000_demod_read(state, 0xb1) & 0x40) == 0x0)
- break;
- msleep(20);
- }
-
- reg = m88rs2000_demod_read(state, 0xb1);
- if ((reg & 0x40) > 0x0) {
- reg &= 0x7f;
- reg |= 0x40;
- m88rs2000_demod_write(state, 0xb1, reg);
- }
-
- reg = m88rs2000_demod_read(state, 0xb2);
- reg &= 0x3f;
- reg |= 0x80;
- m88rs2000_demod_write(state, 0xb2, reg);
- m88rs2000_demod_write(state, 0x9a, 0xb0);
-
-
- return 0;
-}
-
-static int m88rs2000_send_diseqc_burst(struct dvb_frontend *fe,
- fe_sec_mini_cmd_t burst)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- u8 reg0, reg1;
- deb_info("%s\n", __func__);
- m88rs2000_demod_write(state, 0x9a, 0x30);
- msleep(50);
- reg0 = m88rs2000_demod_read(state, 0xb1);
- reg1 = m88rs2000_demod_read(state, 0xb2);
- /* TODO complete this section */
- m88rs2000_demod_write(state, 0xb2, reg1);
- m88rs2000_demod_write(state, 0xb1, reg0);
- m88rs2000_demod_write(state, 0x9a, 0xb0);
-
- return 0;
-}
-
-static int m88rs2000_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- u8 reg0, reg1;
- m88rs2000_demod_write(state, 0x9a, 0x30);
- reg0 = m88rs2000_demod_read(state, 0xb1);
- reg1 = m88rs2000_demod_read(state, 0xb2);
-
- reg1 &= 0x3f;
-
- switch (tone) {
- case SEC_TONE_ON:
- reg0 |= 0x4;
- reg0 &= 0xbc;
- break;
- case SEC_TONE_OFF:
- reg1 |= 0x80;
- break;
- default:
- break;
- }
- m88rs2000_demod_write(state, 0xb2, reg1);
- m88rs2000_demod_write(state, 0xb1, reg0);
- m88rs2000_demod_write(state, 0x9a, 0xb0);
- return 0;
-}
-
-struct inittab {
- u8 cmd;
- u8 reg;
- u8 val;
-};
-
-struct inittab m88rs2000_setup[] = {
- {DEMOD_WRITE, 0x9a, 0x30},
- {DEMOD_WRITE, 0x00, 0x01},
- {WRITE_DELAY, 0x19, 0x00},
- {DEMOD_WRITE, 0x00, 0x00},
- {DEMOD_WRITE, 0x9a, 0xb0},
- {DEMOD_WRITE, 0x81, 0xc1},
- {TUNER_WRITE, 0x42, 0x73},
- {TUNER_WRITE, 0x05, 0x07},
- {TUNER_WRITE, 0x20, 0x27},
- {TUNER_WRITE, 0x07, 0x02},
- {TUNER_WRITE, 0x11, 0xff},
- {TUNER_WRITE, 0x60, 0xf9},
- {TUNER_WRITE, 0x08, 0x01},
- {TUNER_WRITE, 0x00, 0x41},
- {DEMOD_WRITE, 0x81, 0x81},
- {DEMOD_WRITE, 0x86, 0xc6},
- {DEMOD_WRITE, 0x9a, 0x30},
- {DEMOD_WRITE, 0xf0, 0x22},
- {DEMOD_WRITE, 0xf1, 0xbf},
- {DEMOD_WRITE, 0xb0, 0x45},
- {DEMOD_WRITE, 0xb2, 0x01}, /* set voltage pin always set 1*/
- {DEMOD_WRITE, 0x9a, 0xb0},
- {0xff, 0xaa, 0xff}
-};
-
-struct inittab m88rs2000_shutdown[] = {
- {DEMOD_WRITE, 0x9a, 0x30},
- {DEMOD_WRITE, 0xb0, 0x00},
- {DEMOD_WRITE, 0xf1, 0x89},
- {DEMOD_WRITE, 0x00, 0x01},
- {DEMOD_WRITE, 0x9a, 0xb0},
- {TUNER_WRITE, 0x00, 0x40},
- {DEMOD_WRITE, 0x81, 0x81},
- {0xff, 0xaa, 0xff}
-};
-
-struct inittab tuner_reset[] = {
- {TUNER_WRITE, 0x42, 0x73},
- {TUNER_WRITE, 0x05, 0x07},
- {TUNER_WRITE, 0x20, 0x27},
- {TUNER_WRITE, 0x07, 0x02},
- {TUNER_WRITE, 0x11, 0xff},
- {TUNER_WRITE, 0x60, 0xf9},
- {TUNER_WRITE, 0x08, 0x01},
- {TUNER_WRITE, 0x00, 0x41},
- {0xff, 0xaa, 0xff}
-};
-
-struct inittab fe_reset[] = {
- {DEMOD_WRITE, 0x00, 0x01},
- {DEMOD_WRITE, 0xf1, 0xbf},
- {DEMOD_WRITE, 0x00, 0x01},
- {DEMOD_WRITE, 0x20, 0x81},
- {DEMOD_WRITE, 0x21, 0x80},
- {DEMOD_WRITE, 0x10, 0x33},
- {DEMOD_WRITE, 0x11, 0x44},
- {DEMOD_WRITE, 0x12, 0x07},
- {DEMOD_WRITE, 0x18, 0x20},
- {DEMOD_WRITE, 0x28, 0x04},
- {DEMOD_WRITE, 0x29, 0x8e},
- {DEMOD_WRITE, 0x3b, 0xff},
- {DEMOD_WRITE, 0x32, 0x10},
- {DEMOD_WRITE, 0x33, 0x02},
- {DEMOD_WRITE, 0x34, 0x30},
- {DEMOD_WRITE, 0x35, 0xff},
- {DEMOD_WRITE, 0x38, 0x50},
- {DEMOD_WRITE, 0x39, 0x68},
- {DEMOD_WRITE, 0x3c, 0x7f},
- {DEMOD_WRITE, 0x3d, 0x0f},
- {DEMOD_WRITE, 0x45, 0x20},
- {DEMOD_WRITE, 0x46, 0x24},
- {DEMOD_WRITE, 0x47, 0x7c},
- {DEMOD_WRITE, 0x48, 0x16},
- {DEMOD_WRITE, 0x49, 0x04},
- {DEMOD_WRITE, 0x4a, 0x01},
- {DEMOD_WRITE, 0x4b, 0x78},
- {DEMOD_WRITE, 0X4d, 0xd2},
- {DEMOD_WRITE, 0x4e, 0x6d},
- {DEMOD_WRITE, 0x50, 0x30},
- {DEMOD_WRITE, 0x51, 0x30},
- {DEMOD_WRITE, 0x54, 0x7b},
- {DEMOD_WRITE, 0x56, 0x09},
- {DEMOD_WRITE, 0x58, 0x59},
- {DEMOD_WRITE, 0x59, 0x37},
- {DEMOD_WRITE, 0x63, 0xfa},
- {0xff, 0xaa, 0xff}
-};
-
-struct inittab fe_trigger[] = {
- {DEMOD_WRITE, 0x97, 0x04},
- {DEMOD_WRITE, 0x99, 0x77},
- {DEMOD_WRITE, 0x9b, 0x64},
- {DEMOD_WRITE, 0x9e, 0x00},
- {DEMOD_WRITE, 0x9f, 0xf8},
- {DEMOD_WRITE, 0xa0, 0x20},
- {DEMOD_WRITE, 0xa1, 0xe0},
- {DEMOD_WRITE, 0xa3, 0x38},
- {DEMOD_WRITE, 0x98, 0xff},
- {DEMOD_WRITE, 0xc0, 0x0f},
- {DEMOD_WRITE, 0x89, 0x01},
- {DEMOD_WRITE, 0x00, 0x00},
- {WRITE_DELAY, 0x0a, 0x00},
- {DEMOD_WRITE, 0x00, 0x01},
- {DEMOD_WRITE, 0x00, 0x00},
- {DEMOD_WRITE, 0x9a, 0xb0},
- {0xff, 0xaa, 0xff}
-};
-
-static int m88rs2000_tab_set(struct m88rs2000_state *state,
- struct inittab *tab)
-{
- int ret = 0;
- u8 i;
- if (tab == NULL)
- return -EINVAL;
-
- for (i = 0; i < 255; i++) {
- switch (tab[i].cmd) {
- case 0x01:
- ret = m88rs2000_demod_write(state, tab[i].reg,
- tab[i].val);
- break;
- case 0x02:
- ret = m88rs2000_tuner_write(state, tab[i].reg,
- tab[i].val);
- break;
- case 0x10:
- if (tab[i].reg > 0)
- mdelay(tab[i].reg);
- break;
- case 0xff:
- if (tab[i].reg == 0xaa && tab[i].val == 0xff)
- return 0;
- case 0x00:
- break;
- default:
- return -EINVAL;
- }
- if (ret < 0)
- return -ENODEV;
- }
- return 0;
-}
-
-static int m88rs2000_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t volt)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- u8 data;
-
- data = m88rs2000_demod_read(state, 0xb2);
- data |= 0x03; /* bit0 V/H, bit1 off/on */
-
- switch (volt) {
- case SEC_VOLTAGE_18:
- data &= ~0x03;
- break;
- case SEC_VOLTAGE_13:
- data &= ~0x03;
- data |= 0x01;
- break;
- case SEC_VOLTAGE_OFF:
- break;
- }
-
- m88rs2000_demod_write(state, 0xb2, data);
-
- return 0;
-}
-
-static int m88rs2000_startup(struct m88rs2000_state *state)
-{
- int ret = 0;
- u8 reg;
-
- reg = m88rs2000_tuner_read(state, 0x00);
- if ((reg & 0x40) == 0)
- ret = -ENODEV;
-
- return ret;
-}
-
-static int m88rs2000_init(struct dvb_frontend *fe)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- int ret;
-
- deb_info("m88rs2000: init chip\n");
- /* Setup frontend from shutdown/cold */
- ret = m88rs2000_tab_set(state, m88rs2000_setup);
-
- return ret;
-}
-
-static int m88rs2000_sleep(struct dvb_frontend *fe)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- int ret;
- /* Shutdown the frondend */
- ret = m88rs2000_tab_set(state, m88rs2000_shutdown);
- return ret;
-}
-
-static int m88rs2000_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- u8 reg = m88rs2000_demod_read(state, 0x8c);
-
- *status = 0;
-
- if ((reg & 0x7) == 0x7) {
- *status = FE_HAS_CARRIER | FE_HAS_SIGNAL | FE_HAS_VITERBI
- | FE_HAS_SYNC | FE_HAS_LOCK;
- if (state->config->set_ts_params)
- state->config->set_ts_params(fe, CALL_IS_READ);
- }
- return 0;
-}
-
-/* Extact code for these unknown but lmedm04 driver uses interupt callbacks */
-
-static int m88rs2000_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- deb_info("m88rs2000_read_ber %d\n", *ber);
- *ber = 0;
- return 0;
-}
-
-static int m88rs2000_read_signal_strength(struct dvb_frontend *fe,
- u16 *strength)
-{
- *strength = 0;
- return 0;
-}
-
-static int m88rs2000_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- deb_info("m88rs2000_read_snr %d\n", *snr);
- *snr = 0;
- return 0;
-}
-
-static int m88rs2000_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- deb_info("m88rs2000_read_ber %d\n", *ucblocks);
- *ucblocks = 0;
- return 0;
-}
-
-static int m88rs2000_tuner_gate_ctrl(struct m88rs2000_state *state, u8 offset)
-{
- int ret;
- ret = m88rs2000_tuner_write(state, 0x51, 0x1f - offset);
- ret |= m88rs2000_tuner_write(state, 0x51, 0x1f);
- ret |= m88rs2000_tuner_write(state, 0x50, offset);
- ret |= m88rs2000_tuner_write(state, 0x50, 0x00);
- msleep(20);
- return ret;
-}
-
-static int m88rs2000_set_tuner_rf(struct dvb_frontend *fe)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- int reg;
- reg = m88rs2000_tuner_read(state, 0x3d);
- reg &= 0x7f;
- if (reg < 0x16)
- reg = 0xa1;
- else if (reg == 0x16)
- reg = 0x99;
- else
- reg = 0xf9;
-
- m88rs2000_tuner_write(state, 0x60, reg);
- reg = m88rs2000_tuner_gate_ctrl(state, 0x08);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- return reg;
-}
-
-static int m88rs2000_set_tuner(struct dvb_frontend *fe, u16 *offset)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct m88rs2000_state *state = fe->demodulator_priv;
- int ret;
- u32 frequency = c->frequency;
- s32 offset_khz;
- s32 tmp;
- u32 symbol_rate = (c->symbol_rate / 1000);
- u32 f3db, gdiv28;
- u16 value, ndiv, lpf_coeff;
- u8 lpf_mxdiv, mlpf_max, mlpf_min, nlpf;
- u8 lo = 0x01, div4 = 0x0;
-
- /* Reset Tuner */
- ret = m88rs2000_tab_set(state, tuner_reset);
-
- /* Calculate frequency divider */
- if (frequency < 1060000) {
- lo |= 0x10;
- div4 = 0x1;
- ndiv = (frequency * 14 * 4) / FE_CRYSTAL_KHZ;
- } else
- ndiv = (frequency * 14 * 2) / FE_CRYSTAL_KHZ;
- ndiv = ndiv + ndiv % 2;
- ndiv = ndiv - 1024;
-
- ret = m88rs2000_tuner_write(state, 0x10, 0x80 | lo);
-
- /* Set frequency divider */
- ret |= m88rs2000_tuner_write(state, 0x01, (ndiv >> 8) & 0xf);
- ret |= m88rs2000_tuner_write(state, 0x02, ndiv & 0xff);
-
- ret |= m88rs2000_tuner_write(state, 0x03, 0x06);
- ret |= m88rs2000_tuner_gate_ctrl(state, 0x10);
- if (ret < 0)
- return -ENODEV;
-
- /* Tuner Frequency Range */
- ret = m88rs2000_tuner_write(state, 0x10, lo);
-
- ret |= m88rs2000_tuner_gate_ctrl(state, 0x08);
-
- /* Tuner RF */
- ret |= m88rs2000_set_tuner_rf(fe);
-
- gdiv28 = (FE_CRYSTAL_KHZ / 1000 * 1694 + 500) / 1000;
- ret |= m88rs2000_tuner_write(state, 0x04, gdiv28 & 0xff);
- ret |= m88rs2000_tuner_gate_ctrl(state, 0x04);
- if (ret < 0)
- return -ENODEV;
-
- value = m88rs2000_tuner_read(state, 0x26);
-
- f3db = (symbol_rate * 135) / 200 + 2000;
- f3db += FREQ_OFFSET_LOW_SYM_RATE;
- if (f3db < 7000)
- f3db = 7000;
- if (f3db > 40000)
- f3db = 40000;
-
- gdiv28 = gdiv28 * 207 / (value * 2 + 151);
- mlpf_max = gdiv28 * 135 / 100;
- mlpf_min = gdiv28 * 78 / 100;
- if (mlpf_max > 63)
- mlpf_max = 63;
-
- lpf_coeff = 2766;
-
- nlpf = (f3db * gdiv28 * 2 / lpf_coeff /
- (FE_CRYSTAL_KHZ / 1000) + 1) / 2;
- if (nlpf > 23)
- nlpf = 23;
- if (nlpf < 1)
- nlpf = 1;
-
- lpf_mxdiv = (nlpf * (FE_CRYSTAL_KHZ / 1000)
- * lpf_coeff * 2 / f3db + 1) / 2;
-
- if (lpf_mxdiv < mlpf_min) {
- nlpf++;
- lpf_mxdiv = (nlpf * (FE_CRYSTAL_KHZ / 1000)
- * lpf_coeff * 2 / f3db + 1) / 2;
- }
-
- if (lpf_mxdiv > mlpf_max)
- lpf_mxdiv = mlpf_max;
-
- ret = m88rs2000_tuner_write(state, 0x04, lpf_mxdiv);
- ret |= m88rs2000_tuner_write(state, 0x06, nlpf);
-
- ret |= m88rs2000_tuner_gate_ctrl(state, 0x04);
-
- ret |= m88rs2000_tuner_gate_ctrl(state, 0x01);
-
- msleep(80);
- /* calculate offset assuming 96000kHz*/
- offset_khz = (ndiv - ndiv % 2 + 1024) * FE_CRYSTAL_KHZ
- / 14 / (div4 + 1) / 2;
-
- offset_khz -= frequency;
-
- tmp = offset_khz;
- tmp *= 65536;
-
- tmp = (2 * tmp + 96000) / (2 * 96000);
- if (tmp < 0)
- tmp += 65536;
-
- *offset = tmp & 0xffff;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- return (ret < 0) ? -EINVAL : 0;
-}
-
-static int m88rs2000_set_fec(struct m88rs2000_state *state,
- fe_code_rate_t fec)
-{
- u16 fec_set;
- switch (fec) {
- /* This is not confirmed kept for reference */
-/* case FEC_1_2:
- fec_set = 0x88;
- break;
- case FEC_2_3:
- fec_set = 0x68;
- break;
- case FEC_3_4:
- fec_set = 0x48;
- break;
- case FEC_5_6:
- fec_set = 0x28;
- break;
- case FEC_7_8:
- fec_set = 0x18;
- break; */
- case FEC_AUTO:
- default:
- fec_set = 0x08;
- }
- m88rs2000_demod_write(state, 0x76, fec_set);
-
- return 0;
-}
-
-
-static fe_code_rate_t m88rs2000_get_fec(struct m88rs2000_state *state)
-{
- u8 reg;
- m88rs2000_demod_write(state, 0x9a, 0x30);
- reg = m88rs2000_demod_read(state, 0x76);
- m88rs2000_demod_write(state, 0x9a, 0xb0);
-
- switch (reg) {
- case 0x88:
- return FEC_1_2;
- case 0x68:
- return FEC_2_3;
- case 0x48:
- return FEC_3_4;
- case 0x28:
- return FEC_5_6;
- case 0x18:
- return FEC_7_8;
- case 0x08:
- default:
- break;
- }
-
- return FEC_AUTO;
-}
-
-static int m88rs2000_set_frontend(struct dvb_frontend *fe)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- fe_status_t status;
- int i, ret;
- u16 offset = 0;
- u8 reg;
-
- state->no_lock_count = 0;
-
- if (c->delivery_system != SYS_DVBS) {
- deb_info("%s: unsupported delivery "
- "system selected (%d)\n",
- __func__, c->delivery_system);
- return -EOPNOTSUPP;
- }
-
- /* Set Tuner */
- ret = m88rs2000_set_tuner(fe, &offset);
- if (ret < 0)
- return -ENODEV;
-
- ret = m88rs2000_demod_write(state, 0x9a, 0x30);
- /* Unknown usually 0xc6 sometimes 0xc1 */
- reg = m88rs2000_demod_read(state, 0x86);
- ret |= m88rs2000_demod_write(state, 0x86, reg);
- /* Offset lower nibble always 0 */
- ret |= m88rs2000_demod_write(state, 0x9c, (offset >> 8));
- ret |= m88rs2000_demod_write(state, 0x9d, offset & 0xf0);
-
-
- /* Reset Demod */
- ret = m88rs2000_tab_set(state, fe_reset);
- if (ret < 0)
- return -ENODEV;
-
- /* Unknown */
- reg = m88rs2000_demod_read(state, 0x70);
- ret = m88rs2000_demod_write(state, 0x70, reg);
-
- /* Set FEC */
- ret |= m88rs2000_set_fec(state, c->fec_inner);
- ret |= m88rs2000_demod_write(state, 0x85, 0x1);
- ret |= m88rs2000_demod_write(state, 0x8a, 0xbf);
- ret |= m88rs2000_demod_write(state, 0x8d, 0x1e);
- ret |= m88rs2000_demod_write(state, 0x90, 0xf1);
- ret |= m88rs2000_demod_write(state, 0x91, 0x08);
-
- if (ret < 0)
- return -ENODEV;
-
- /* Set Symbol Rate */
- ret = m88rs2000_set_symbolrate(fe, c->symbol_rate);
- if (ret < 0)
- return -ENODEV;
-
- /* Set up Demod */
- ret = m88rs2000_tab_set(state, fe_trigger);
- if (ret < 0)
- return -ENODEV;
-
- for (i = 0; i < 25; i++) {
- reg = m88rs2000_demod_read(state, 0x8c);
- if ((reg & 0x7) == 0x7) {
- status = FE_HAS_LOCK;
- break;
- }
- state->no_lock_count++;
- if (state->no_lock_count == 15) {
- reg = m88rs2000_demod_read(state, 0x70);
- reg ^= 0x4;
- m88rs2000_demod_write(state, 0x70, reg);
- state->no_lock_count = 0;
- }
- if (state->no_lock_count == 20)
- m88rs2000_set_tuner_rf(fe);
- msleep(20);
- }
-
- if (status & FE_HAS_LOCK) {
- state->fec_inner = m88rs2000_get_fec(state);
- /* Uknown suspect SNR level */
- reg = m88rs2000_demod_read(state, 0x65);
- }
-
- state->tuner_frequency = c->frequency;
- state->symbol_rate = c->symbol_rate;
- return 0;
-}
-
-static int m88rs2000_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct m88rs2000_state *state = fe->demodulator_priv;
- c->fec_inner = state->fec_inner;
- c->frequency = state->tuner_frequency;
- c->symbol_rate = state->symbol_rate;
- return 0;
-}
-
-static int m88rs2000_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
-
- if (enable)
- m88rs2000_demod_write(state, 0x81, 0x84);
- else
- m88rs2000_demod_write(state, 0x81, 0x81);
- udelay(10);
- return 0;
-}
-
-static void m88rs2000_release(struct dvb_frontend *fe)
-{
- struct m88rs2000_state *state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops m88rs2000_ops = {
- .delsys = { SYS_DVBS },
- .info = {
- .name = "M88RS2000 DVB-S",
- .frequency_min = 950000,
- .frequency_max = 2150000,
- .frequency_stepsize = 1000, /* kHz for QPSK frontends */
- .frequency_tolerance = 5000,
- .symbol_rate_min = 1000000,
- .symbol_rate_max = 45000000,
- .symbol_rate_tolerance = 500, /* ppm */
- .caps = 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_QPSK |
- FE_CAN_FEC_AUTO
- },
-
- .release = m88rs2000_release,
- .init = m88rs2000_init,
- .sleep = m88rs2000_sleep,
- .write = m88rs2000_write,
- .i2c_gate_ctrl = m88rs2000_i2c_gate_ctrl,
- .read_status = m88rs2000_read_status,
- .read_ber = m88rs2000_read_ber,
- .read_signal_strength = m88rs2000_read_signal_strength,
- .read_snr = m88rs2000_read_snr,
- .read_ucblocks = m88rs2000_read_ucblocks,
- .diseqc_send_master_cmd = m88rs2000_send_diseqc_msg,
- .diseqc_send_burst = m88rs2000_send_diseqc_burst,
- .set_tone = m88rs2000_set_tone,
- .set_voltage = m88rs2000_set_voltage,
-
- .set_frontend = m88rs2000_set_frontend,
- .get_frontend = m88rs2000_get_frontend,
-};
-
-struct dvb_frontend *m88rs2000_attach(const struct m88rs2000_config *config,
- struct i2c_adapter *i2c)
-{
- struct m88rs2000_state *state = NULL;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct m88rs2000_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- state->tuner_frequency = 0;
- state->symbol_rate = 0;
- state->fec_inner = 0;
-
- if (m88rs2000_startup(state) < 0)
- goto error;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &m88rs2000_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- kfree(state);
-
- return NULL;
-}
-EXPORT_SYMBOL(m88rs2000_attach);
-
-MODULE_DESCRIPTION("M88RS2000 DVB-S Demodulator driver");
-MODULE_AUTHOR("Malcolm Priestley tvboxspy@gmail.com");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("1.13");
-