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Diffstat (limited to 'drivers/media/dvb/pt1/va1j5jf8007s.c')
-rw-r--r--drivers/media/dvb/pt1/va1j5jf8007s.c735
1 files changed, 0 insertions, 735 deletions
diff --git a/drivers/media/dvb/pt1/va1j5jf8007s.c b/drivers/media/dvb/pt1/va1j5jf8007s.c
deleted file mode 100644
index d980dfb..0000000
--- a/drivers/media/dvb/pt1/va1j5jf8007s.c
+++ /dev/null
@@ -1,735 +0,0 @@
-/*
- * ISDB-S driver for VA1J5JF8007/VA1J5JF8011
- *
- * Copyright (C) 2009 HIRANO Takahito <hiranotaka@zng.info>
- *
- * based on pt1dvr - http://pt1dvr.sourceforge.jp/
- * by Tomoaki Ishikawa <tomy@users.sourceforge.jp>
- *
- * 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/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include "dvb_frontend.h"
-#include "va1j5jf8007s.h"
-
-enum va1j5jf8007s_tune_state {
- VA1J5JF8007S_IDLE,
- VA1J5JF8007S_SET_FREQUENCY_1,
- VA1J5JF8007S_SET_FREQUENCY_2,
- VA1J5JF8007S_SET_FREQUENCY_3,
- VA1J5JF8007S_CHECK_FREQUENCY,
- VA1J5JF8007S_SET_MODULATION,
- VA1J5JF8007S_CHECK_MODULATION,
- VA1J5JF8007S_SET_TS_ID,
- VA1J5JF8007S_CHECK_TS_ID,
- VA1J5JF8007S_TRACK,
-};
-
-struct va1j5jf8007s_state {
- const struct va1j5jf8007s_config *config;
- struct i2c_adapter *adap;
- struct dvb_frontend fe;
- enum va1j5jf8007s_tune_state tune_state;
-};
-
-static int va1j5jf8007s_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct va1j5jf8007s_state *state;
- u8 addr;
- int i;
- u8 write_buf[1], read_buf[1];
- struct i2c_msg msgs[2];
- s32 word, x1, x2, x3, x4, x5, y;
-
- state = fe->demodulator_priv;
- addr = state->config->demod_address;
-
- word = 0;
- for (i = 0; i < 2; i++) {
- write_buf[0] = 0xbc + i;
-
- msgs[0].addr = addr;
- msgs[0].flags = 0;
- msgs[0].len = sizeof(write_buf);
- msgs[0].buf = write_buf;
-
- msgs[1].addr = addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = sizeof(read_buf);
- msgs[1].buf = read_buf;
-
- if (i2c_transfer(state->adap, msgs, 2) != 2)
- return -EREMOTEIO;
-
- word <<= 8;
- word |= read_buf[0];
- }
-
- word -= 3000;
- if (word < 0)
- word = 0;
-
- x1 = int_sqrt(word << 16) * ((15625ll << 21) / 1000000);
- x2 = (s64)x1 * x1 >> 31;
- x3 = (s64)x2 * x1 >> 31;
- x4 = (s64)x2 * x2 >> 31;
- x5 = (s64)x4 * x1 >> 31;
-
- y = (58857ll << 23) / 1000;
- y -= (s64)x1 * ((89565ll << 24) / 1000) >> 30;
- y += (s64)x2 * ((88977ll << 24) / 1000) >> 28;
- y -= (s64)x3 * ((50259ll << 25) / 1000) >> 27;
- y += (s64)x4 * ((14341ll << 27) / 1000) >> 27;
- y -= (s64)x5 * ((16346ll << 30) / 10000) >> 28;
-
- *snr = y < 0 ? 0 : y >> 15;
- return 0;
-}
-
-static int va1j5jf8007s_get_frontend_algo(struct dvb_frontend *fe)
-{
- return DVBFE_ALGO_HW;
-}
-
-static int
-va1j5jf8007s_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct va1j5jf8007s_state *state;
-
- state = fe->demodulator_priv;
-
- switch (state->tune_state) {
- case VA1J5JF8007S_IDLE:
- case VA1J5JF8007S_SET_FREQUENCY_1:
- case VA1J5JF8007S_SET_FREQUENCY_2:
- case VA1J5JF8007S_SET_FREQUENCY_3:
- case VA1J5JF8007S_CHECK_FREQUENCY:
- *status = 0;
- return 0;
-
-
- case VA1J5JF8007S_SET_MODULATION:
- case VA1J5JF8007S_CHECK_MODULATION:
- *status |= FE_HAS_SIGNAL;
- return 0;
-
- case VA1J5JF8007S_SET_TS_ID:
- case VA1J5JF8007S_CHECK_TS_ID:
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
- return 0;
-
- case VA1J5JF8007S_TRACK:
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
- return 0;
- }
-
- BUG();
-}
-
-struct va1j5jf8007s_cb_map {
- u32 frequency;
- u8 cb;
-};
-
-static const struct va1j5jf8007s_cb_map va1j5jf8007s_cb_maps[] = {
- { 986000, 0xb2 },
- { 1072000, 0xd2 },
- { 1154000, 0xe2 },
- { 1291000, 0x20 },
- { 1447000, 0x40 },
- { 1615000, 0x60 },
- { 1791000, 0x80 },
- { 1972000, 0xa0 },
-};
-
-static u8 va1j5jf8007s_lookup_cb(u32 frequency)
-{
- int i;
- const struct va1j5jf8007s_cb_map *map;
-
- for (i = 0; i < ARRAY_SIZE(va1j5jf8007s_cb_maps); i++) {
- map = &va1j5jf8007s_cb_maps[i];
- if (frequency < map->frequency)
- return map->cb;
- }
- return 0xc0;
-}
-
-static int va1j5jf8007s_set_frequency_1(struct va1j5jf8007s_state *state)
-{
- u32 frequency;
- u16 word;
- u8 buf[6];
- struct i2c_msg msg;
-
- frequency = state->fe.dtv_property_cache.frequency;
-
- word = (frequency + 500) / 1000;
- if (frequency < 1072000)
- word = (word << 1 & ~0x1f) | (word & 0x0f);
-
- buf[0] = 0xfe;
- buf[1] = 0xc0;
- buf[2] = 0x40 | word >> 8;
- buf[3] = word;
- buf[4] = 0xe0;
- buf[5] = va1j5jf8007s_lookup_cb(frequency);
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int va1j5jf8007s_set_frequency_2(struct va1j5jf8007s_state *state)
-{
- u8 buf[3];
- struct i2c_msg msg;
-
- buf[0] = 0xfe;
- buf[1] = 0xc0;
- buf[2] = 0xe4;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int va1j5jf8007s_set_frequency_3(struct va1j5jf8007s_state *state)
-{
- u32 frequency;
- u8 buf[4];
- struct i2c_msg msg;
-
- frequency = state->fe.dtv_property_cache.frequency;
-
- buf[0] = 0xfe;
- buf[1] = 0xc0;
- buf[2] = 0xf4;
- buf[3] = va1j5jf8007s_lookup_cb(frequency) | 0x4;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int
-va1j5jf8007s_check_frequency(struct va1j5jf8007s_state *state, int *lock)
-{
- u8 addr;
- u8 write_buf[2], read_buf[1];
- struct i2c_msg msgs[2];
-
- addr = state->config->demod_address;
-
- write_buf[0] = 0xfe;
- write_buf[1] = 0xc1;
-
- msgs[0].addr = addr;
- msgs[0].flags = 0;
- msgs[0].len = sizeof(write_buf);
- msgs[0].buf = write_buf;
-
- msgs[1].addr = addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = sizeof(read_buf);
- msgs[1].buf = read_buf;
-
- if (i2c_transfer(state->adap, msgs, 2) != 2)
- return -EREMOTEIO;
-
- *lock = read_buf[0] & 0x40;
- return 0;
-}
-
-static int va1j5jf8007s_set_modulation(struct va1j5jf8007s_state *state)
-{
- u8 buf[2];
- struct i2c_msg msg;
-
- buf[0] = 0x03;
- buf[1] = 0x01;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int
-va1j5jf8007s_check_modulation(struct va1j5jf8007s_state *state, int *lock)
-{
- u8 addr;
- u8 write_buf[1], read_buf[1];
- struct i2c_msg msgs[2];
-
- addr = state->config->demod_address;
-
- write_buf[0] = 0xc3;
-
- msgs[0].addr = addr;
- msgs[0].flags = 0;
- msgs[0].len = sizeof(write_buf);
- msgs[0].buf = write_buf;
-
- msgs[1].addr = addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = sizeof(read_buf);
- msgs[1].buf = read_buf;
-
- if (i2c_transfer(state->adap, msgs, 2) != 2)
- return -EREMOTEIO;
-
- *lock = !(read_buf[0] & 0x10);
- return 0;
-}
-
-static int
-va1j5jf8007s_set_ts_id(struct va1j5jf8007s_state *state)
-{
- u32 ts_id;
- u8 buf[3];
- struct i2c_msg msg;
-
- ts_id = state->fe.dtv_property_cache.isdbs_ts_id;
- if (!ts_id)
- return 0;
-
- buf[0] = 0x8f;
- buf[1] = ts_id >> 8;
- buf[2] = ts_id;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int
-va1j5jf8007s_check_ts_id(struct va1j5jf8007s_state *state, int *lock)
-{
- u8 addr;
- u8 write_buf[1], read_buf[2];
- struct i2c_msg msgs[2];
- u32 ts_id;
-
- ts_id = state->fe.dtv_property_cache.isdbs_ts_id;
- if (!ts_id) {
- *lock = 1;
- return 0;
- }
-
- addr = state->config->demod_address;
-
- write_buf[0] = 0xe6;
-
- msgs[0].addr = addr;
- msgs[0].flags = 0;
- msgs[0].len = sizeof(write_buf);
- msgs[0].buf = write_buf;
-
- msgs[1].addr = addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = sizeof(read_buf);
- msgs[1].buf = read_buf;
-
- if (i2c_transfer(state->adap, msgs, 2) != 2)
- return -EREMOTEIO;
-
- *lock = (read_buf[0] << 8 | read_buf[1]) == ts_id;
- return 0;
-}
-
-static int
-va1j5jf8007s_tune(struct dvb_frontend *fe,
- bool re_tune,
- unsigned int mode_flags, unsigned int *delay,
- fe_status_t *status)
-{
- struct va1j5jf8007s_state *state;
- int ret;
- int lock = 0;
-
- state = fe->demodulator_priv;
-
- if (re_tune)
- state->tune_state = VA1J5JF8007S_SET_FREQUENCY_1;
-
- switch (state->tune_state) {
- case VA1J5JF8007S_IDLE:
- *delay = 3 * HZ;
- *status = 0;
- return 0;
-
- case VA1J5JF8007S_SET_FREQUENCY_1:
- ret = va1j5jf8007s_set_frequency_1(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007S_SET_FREQUENCY_2;
- *delay = 0;
- *status = 0;
- return 0;
-
- case VA1J5JF8007S_SET_FREQUENCY_2:
- ret = va1j5jf8007s_set_frequency_2(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007S_SET_FREQUENCY_3;
- *delay = (HZ + 99) / 100;
- *status = 0;
- return 0;
-
- case VA1J5JF8007S_SET_FREQUENCY_3:
- ret = va1j5jf8007s_set_frequency_3(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007S_CHECK_FREQUENCY;
- *delay = 0;
- *status = 0;
- return 0;
-
- case VA1J5JF8007S_CHECK_FREQUENCY:
- ret = va1j5jf8007s_check_frequency(state, &lock);
- if (ret < 0)
- return ret;
-
- if (!lock) {
- *delay = (HZ + 999) / 1000;
- *status = 0;
- return 0;
- }
-
- state->tune_state = VA1J5JF8007S_SET_MODULATION;
- *delay = 0;
- *status = FE_HAS_SIGNAL;
- return 0;
-
- case VA1J5JF8007S_SET_MODULATION:
- ret = va1j5jf8007s_set_modulation(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007S_CHECK_MODULATION;
- *delay = 0;
- *status = FE_HAS_SIGNAL;
- return 0;
-
- case VA1J5JF8007S_CHECK_MODULATION:
- ret = va1j5jf8007s_check_modulation(state, &lock);
- if (ret < 0)
- return ret;
-
- if (!lock) {
- *delay = (HZ + 49) / 50;
- *status = FE_HAS_SIGNAL;
- return 0;
- }
-
- state->tune_state = VA1J5JF8007S_SET_TS_ID;
- *delay = 0;
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
- return 0;
-
- case VA1J5JF8007S_SET_TS_ID:
- ret = va1j5jf8007s_set_ts_id(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007S_CHECK_TS_ID;
- return 0;
-
- case VA1J5JF8007S_CHECK_TS_ID:
- ret = va1j5jf8007s_check_ts_id(state, &lock);
- if (ret < 0)
- return ret;
-
- if (!lock) {
- *delay = (HZ + 99) / 100;
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
- return 0;
- }
-
- state->tune_state = VA1J5JF8007S_TRACK;
- /* fall through */
-
- case VA1J5JF8007S_TRACK:
- *delay = 3 * HZ;
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
- return 0;
- }
-
- BUG();
-}
-
-static int va1j5jf8007s_init_frequency(struct va1j5jf8007s_state *state)
-{
- u8 buf[4];
- struct i2c_msg msg;
-
- buf[0] = 0xfe;
- buf[1] = 0xc0;
- buf[2] = 0xf0;
- buf[3] = 0x04;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int va1j5jf8007s_set_sleep(struct va1j5jf8007s_state *state, int sleep)
-{
- u8 buf[2];
- struct i2c_msg msg;
-
- buf[0] = 0x17;
- buf[1] = sleep ? 0x01 : 0x00;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int va1j5jf8007s_sleep(struct dvb_frontend *fe)
-{
- struct va1j5jf8007s_state *state;
- int ret;
-
- state = fe->demodulator_priv;
-
- ret = va1j5jf8007s_init_frequency(state);
- if (ret < 0)
- return ret;
-
- return va1j5jf8007s_set_sleep(state, 1);
-}
-
-static int va1j5jf8007s_init(struct dvb_frontend *fe)
-{
- struct va1j5jf8007s_state *state;
-
- state = fe->demodulator_priv;
- state->tune_state = VA1J5JF8007S_IDLE;
-
- return va1j5jf8007s_set_sleep(state, 0);
-}
-
-static void va1j5jf8007s_release(struct dvb_frontend *fe)
-{
- struct va1j5jf8007s_state *state;
- state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops va1j5jf8007s_ops = {
- .delsys = { SYS_ISDBS },
- .info = {
- .name = "VA1J5JF8007/VA1J5JF8011 ISDB-S",
- .frequency_min = 950000,
- .frequency_max = 2150000,
- .frequency_stepsize = 1000,
- .caps = FE_CAN_INVERSION_AUTO | FE_CAN_FEC_AUTO |
- FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
- FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_HIERARCHY_AUTO,
- },
-
- .read_snr = va1j5jf8007s_read_snr,
- .get_frontend_algo = va1j5jf8007s_get_frontend_algo,
- .read_status = va1j5jf8007s_read_status,
- .tune = va1j5jf8007s_tune,
- .sleep = va1j5jf8007s_sleep,
- .init = va1j5jf8007s_init,
- .release = va1j5jf8007s_release,
-};
-
-static int va1j5jf8007s_prepare_1(struct va1j5jf8007s_state *state)
-{
- u8 addr;
- u8 write_buf[1], read_buf[1];
- struct i2c_msg msgs[2];
-
- addr = state->config->demod_address;
-
- write_buf[0] = 0x07;
-
- msgs[0].addr = addr;
- msgs[0].flags = 0;
- msgs[0].len = sizeof(write_buf);
- msgs[0].buf = write_buf;
-
- msgs[1].addr = addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = sizeof(read_buf);
- msgs[1].buf = read_buf;
-
- if (i2c_transfer(state->adap, msgs, 2) != 2)
- return -EREMOTEIO;
-
- if (read_buf[0] != 0x41)
- return -EIO;
-
- return 0;
-}
-
-static const u8 va1j5jf8007s_20mhz_prepare_bufs[][2] = {
- {0x04, 0x02}, {0x0d, 0x55}, {0x11, 0x40}, {0x13, 0x80}, {0x17, 0x01},
- {0x1c, 0x0a}, {0x1d, 0xaa}, {0x1e, 0x20}, {0x1f, 0x88}, {0x51, 0xb0},
- {0x52, 0x89}, {0x53, 0xb3}, {0x5a, 0x2d}, {0x5b, 0xd3}, {0x85, 0x69},
- {0x87, 0x04}, {0x8e, 0x02}, {0xa3, 0xf7}, {0xa5, 0xc0},
-};
-
-static const u8 va1j5jf8007s_25mhz_prepare_bufs[][2] = {
- {0x04, 0x02}, {0x11, 0x40}, {0x13, 0x80}, {0x17, 0x01}, {0x1c, 0x0a},
- {0x1d, 0xaa}, {0x1e, 0x20}, {0x1f, 0x88}, {0x51, 0xb0}, {0x52, 0x89},
- {0x53, 0xb3}, {0x5a, 0x2d}, {0x5b, 0xd3}, {0x85, 0x69}, {0x87, 0x04},
- {0x8e, 0x26}, {0xa3, 0xf7}, {0xa5, 0xc0},
-};
-
-static int va1j5jf8007s_prepare_2(struct va1j5jf8007s_state *state)
-{
- const u8 (*bufs)[2];
- int size;
- u8 addr;
- u8 buf[2];
- struct i2c_msg msg;
- int i;
-
- switch (state->config->frequency) {
- case VA1J5JF8007S_20MHZ:
- bufs = va1j5jf8007s_20mhz_prepare_bufs;
- size = ARRAY_SIZE(va1j5jf8007s_20mhz_prepare_bufs);
- break;
- case VA1J5JF8007S_25MHZ:
- bufs = va1j5jf8007s_25mhz_prepare_bufs;
- size = ARRAY_SIZE(va1j5jf8007s_25mhz_prepare_bufs);
- break;
- default:
- return -EINVAL;
- }
-
- addr = state->config->demod_address;
-
- msg.addr = addr;
- msg.flags = 0;
- msg.len = 2;
- msg.buf = buf;
- for (i = 0; i < size; i++) {
- memcpy(buf, bufs[i], sizeof(buf));
- if (i2c_transfer(state->adap, &msg, 1) != 1)
- return -EREMOTEIO;
- }
-
- return 0;
-}
-
-/* must be called after va1j5jf8007t_attach */
-int va1j5jf8007s_prepare(struct dvb_frontend *fe)
-{
- struct va1j5jf8007s_state *state;
- int ret;
-
- state = fe->demodulator_priv;
-
- ret = va1j5jf8007s_prepare_1(state);
- if (ret < 0)
- return ret;
-
- ret = va1j5jf8007s_prepare_2(state);
- if (ret < 0)
- return ret;
-
- return va1j5jf8007s_init_frequency(state);
-}
-
-struct dvb_frontend *
-va1j5jf8007s_attach(const struct va1j5jf8007s_config *config,
- struct i2c_adapter *adap)
-{
- struct va1j5jf8007s_state *state;
- struct dvb_frontend *fe;
- u8 buf[2];
- struct i2c_msg msg;
-
- state = kzalloc(sizeof(struct va1j5jf8007s_state), GFP_KERNEL);
- if (!state)
- return NULL;
-
- state->config = config;
- state->adap = adap;
-
- fe = &state->fe;
- memcpy(&fe->ops, &va1j5jf8007s_ops, sizeof(struct dvb_frontend_ops));
- fe->demodulator_priv = state;
-
- buf[0] = 0x01;
- buf[1] = 0x80;
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- msg.buf = buf;
-
- if (i2c_transfer(state->adap, &msg, 1) != 1) {
- kfree(state);
- return NULL;
- }
-
- return fe;
-}
generated by cgit v0.10.2 at 2024-07-29 13:39:42 (GMT)