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path: root/drivers/media/pci/pt1/va1j5jf8007t.c
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Diffstat (limited to 'drivers/media/pci/pt1/va1j5jf8007t.c')
-rw-r--r--drivers/media/pci/pt1/va1j5jf8007t.c532
1 files changed, 0 insertions, 532 deletions
diff --git a/drivers/media/pci/pt1/va1j5jf8007t.c b/drivers/media/pci/pt1/va1j5jf8007t.c
deleted file mode 100644
index a52984a6f9b3..000000000000
--- a/drivers/media/pci/pt1/va1j5jf8007t.c
+++ /dev/null
@@ -1,532 +0,0 @@
-/*
- * ISDB-T 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.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <media/dvb_frontend.h>
-#include <media/dvb_math.h>
-#include "va1j5jf8007t.h"
-
-enum va1j5jf8007t_tune_state {
- VA1J5JF8007T_IDLE,
- VA1J5JF8007T_SET_FREQUENCY,
- VA1J5JF8007T_CHECK_FREQUENCY,
- VA1J5JF8007T_SET_MODULATION,
- VA1J5JF8007T_CHECK_MODULATION,
- VA1J5JF8007T_TRACK,
- VA1J5JF8007T_ABORT,
-};
-
-struct va1j5jf8007t_state {
- const struct va1j5jf8007t_config *config;
- struct i2c_adapter *adap;
- struct dvb_frontend fe;
- enum va1j5jf8007t_tune_state tune_state;
-};
-
-static int va1j5jf8007t_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct va1j5jf8007t_state *state;
- u8 addr;
- int i;
- u8 write_buf[1], read_buf[1];
- struct i2c_msg msgs[2];
- s32 word, x, y;
-
- state = fe->demodulator_priv;
- addr = state->config->demod_address;
-
- word = 0;
- for (i = 0; i < 3; i++) {
- write_buf[0] = 0x8b + 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];
- }
-
- if (!word)
- return -EIO;
-
- x = 10 * (intlog10(0x540000 * 100 / word) - (2 << 24));
- y = (24ll << 46) / 1000000;
- y = ((s64)y * x >> 30) - (16ll << 40) / 10000;
- y = ((s64)y * x >> 29) + (398ll << 35) / 10000;
- y = ((s64)y * x >> 30) + (5491ll << 29) / 10000;
- y = ((s64)y * x >> 30) + (30965ll << 23) / 10000;
- *snr = y >> 15;
- return 0;
-}
-
-static int va1j5jf8007t_get_frontend_algo(struct dvb_frontend *fe)
-{
- return DVBFE_ALGO_HW;
-}
-
-static int
-va1j5jf8007t_read_status(struct dvb_frontend *fe, enum fe_status *status)
-{
- struct va1j5jf8007t_state *state;
-
- state = fe->demodulator_priv;
-
- switch (state->tune_state) {
- case VA1J5JF8007T_IDLE:
- case VA1J5JF8007T_SET_FREQUENCY:
- case VA1J5JF8007T_CHECK_FREQUENCY:
- *status = 0;
- return 0;
-
-
- case VA1J5JF8007T_SET_MODULATION:
- case VA1J5JF8007T_CHECK_MODULATION:
- case VA1J5JF8007T_ABORT:
- *status |= FE_HAS_SIGNAL;
- return 0;
-
- case VA1J5JF8007T_TRACK:
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
- return 0;
- }
-
- BUG();
-}
-
-struct va1j5jf8007t_cb_map {
- u32 frequency;
- u8 cb;
-};
-
-static const struct va1j5jf8007t_cb_map va1j5jf8007t_cb_maps[] = {
- { 90000000, 0x80 },
- { 140000000, 0x81 },
- { 170000000, 0xa1 },
- { 220000000, 0x62 },
- { 330000000, 0xa2 },
- { 402000000, 0xe2 },
- { 450000000, 0x64 },
- { 550000000, 0x84 },
- { 600000000, 0xa4 },
- { 700000000, 0xc4 },
-};
-
-static u8 va1j5jf8007t_lookup_cb(u32 frequency)
-{
- int i;
- const struct va1j5jf8007t_cb_map *map;
-
- for (i = 0; i < ARRAY_SIZE(va1j5jf8007t_cb_maps); i++) {
- map = &va1j5jf8007t_cb_maps[i];
- if (frequency < map->frequency)
- return map->cb;
- }
- return 0xe4;
-}
-
-static int va1j5jf8007t_set_frequency(struct va1j5jf8007t_state *state)
-{
- u32 frequency;
- u16 word;
- u8 buf[6];
- struct i2c_msg msg;
-
- frequency = state->fe.dtv_property_cache.frequency;
-
- word = (frequency + 71428) / 142857 + 399;
- buf[0] = 0xfe;
- buf[1] = 0xc2;
- buf[2] = word >> 8;
- buf[3] = word;
- buf[4] = 0x80;
- buf[5] = va1j5jf8007t_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
-va1j5jf8007t_check_frequency(struct va1j5jf8007t_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] = 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] & 0x40;
- return 0;
-}
-
-static int va1j5jf8007t_set_modulation(struct va1j5jf8007t_state *state)
-{
- u8 buf[2];
- struct i2c_msg msg;
-
- buf[0] = 0x01;
- buf[1] = 0x40;
-
- 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 va1j5jf8007t_check_modulation(struct va1j5jf8007t_state *state,
- int *lock, int *retry)
-{
- u8 addr;
- u8 write_buf[1], read_buf[1];
- struct i2c_msg msgs[2];
-
- addr = state->config->demod_address;
-
- write_buf[0] = 0x80;
-
- 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);
- *retry = read_buf[0] & 0x80;
- return 0;
-}
-
-static int
-va1j5jf8007t_tune(struct dvb_frontend *fe,
- bool re_tune,
- unsigned int mode_flags, unsigned int *delay,
- enum fe_status *status)
-{
- struct va1j5jf8007t_state *state;
- int ret;
- int lock = 0, retry = 0;
-
- state = fe->demodulator_priv;
-
- if (re_tune)
- state->tune_state = VA1J5JF8007T_SET_FREQUENCY;
-
- switch (state->tune_state) {
- case VA1J5JF8007T_IDLE:
- *delay = 3 * HZ;
- *status = 0;
- return 0;
-
- case VA1J5JF8007T_SET_FREQUENCY:
- ret = va1j5jf8007t_set_frequency(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007T_CHECK_FREQUENCY;
- *delay = 0;
- *status = 0;
- return 0;
-
- case VA1J5JF8007T_CHECK_FREQUENCY:
- ret = va1j5jf8007t_check_frequency(state, &lock);
- if (ret < 0)
- return ret;
-
- if (!lock) {
- *delay = (HZ + 999) / 1000;
- *status = 0;
- return 0;
- }
-
- state->tune_state = VA1J5JF8007T_SET_MODULATION;
- *delay = 0;
- *status = FE_HAS_SIGNAL;
- return 0;
-
- case VA1J5JF8007T_SET_MODULATION:
- ret = va1j5jf8007t_set_modulation(state);
- if (ret < 0)
- return ret;
-
- state->tune_state = VA1J5JF8007T_CHECK_MODULATION;
- *delay = 0;
- *status = FE_HAS_SIGNAL;
- return 0;
-
- case VA1J5JF8007T_CHECK_MODULATION:
- ret = va1j5jf8007t_check_modulation(state, &lock, &retry);
- if (ret < 0)
- return ret;
-
- if (!lock) {
- if (!retry) {
- state->tune_state = VA1J5JF8007T_ABORT;
- *delay = 3 * HZ;
- *status = FE_HAS_SIGNAL;
- return 0;
- }
- *delay = (HZ + 999) / 1000;
- *status = FE_HAS_SIGNAL;
- return 0;
- }
-
- state->tune_state = VA1J5JF8007T_TRACK;
- /* fall through */
-
- case VA1J5JF8007T_TRACK:
- *delay = 3 * HZ;
- *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
- return 0;
-
- case VA1J5JF8007T_ABORT:
- *delay = 3 * HZ;
- *status = FE_HAS_SIGNAL;
- return 0;
- }
-
- BUG();
-}
-
-static int va1j5jf8007t_init_frequency(struct va1j5jf8007t_state *state)
-{
- u8 buf[7];
- struct i2c_msg msg;
-
- buf[0] = 0xfe;
- buf[1] = 0xc2;
- buf[2] = 0x01;
- buf[3] = 0x8f;
- buf[4] = 0xc1;
- buf[5] = 0x80;
- buf[6] = 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)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int va1j5jf8007t_set_sleep(struct va1j5jf8007t_state *state, int sleep)
-{
- u8 buf[2];
- struct i2c_msg msg;
-
- buf[0] = 0x03;
- buf[1] = sleep ? 0x90 : 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)
- return -EREMOTEIO;
-
- return 0;
-}
-
-static int va1j5jf8007t_sleep(struct dvb_frontend *fe)
-{
- struct va1j5jf8007t_state *state;
- int ret;
-
- state = fe->demodulator_priv;
-
- ret = va1j5jf8007t_init_frequency(state);
- if (ret < 0)
- return ret;
-
- return va1j5jf8007t_set_sleep(state, 1);
-}
-
-static int va1j5jf8007t_init(struct dvb_frontend *fe)
-{
- struct va1j5jf8007t_state *state;
-
- state = fe->demodulator_priv;
- state->tune_state = VA1J5JF8007T_IDLE;
-
- return va1j5jf8007t_set_sleep(state, 0);
-}
-
-static void va1j5jf8007t_release(struct dvb_frontend *fe)
-{
- struct va1j5jf8007t_state *state;
- state = fe->demodulator_priv;
- kfree(state);
-}
-
-static const struct dvb_frontend_ops va1j5jf8007t_ops = {
- .delsys = { SYS_ISDBT },
- .info = {
- .name = "VA1J5JF8007/VA1J5JF8011 ISDB-T",
- .frequency_min = 90000000,
- .frequency_max = 770000000,
- .frequency_stepsize = 142857,
- .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 = va1j5jf8007t_read_snr,
- .get_frontend_algo = va1j5jf8007t_get_frontend_algo,
- .read_status = va1j5jf8007t_read_status,
- .tune = va1j5jf8007t_tune,
- .sleep = va1j5jf8007t_sleep,
- .init = va1j5jf8007t_init,
- .release = va1j5jf8007t_release,
-};
-
-static const u8 va1j5jf8007t_20mhz_prepare_bufs[][2] = {
- {0x03, 0x90}, {0x14, 0x8f}, {0x1c, 0x2a}, {0x1d, 0xa8}, {0x1e, 0xa2},
- {0x22, 0x83}, {0x31, 0x0d}, {0x32, 0xe0}, {0x39, 0xd3}, {0x3a, 0x00},
- {0x5c, 0x40}, {0x5f, 0x80}, {0x75, 0x02}, {0x76, 0x4e}, {0x77, 0x03},
- {0xef, 0x01}
-};
-
-static const u8 va1j5jf8007t_25mhz_prepare_bufs[][2] = {
- {0x03, 0x90}, {0x1c, 0x2a}, {0x1d, 0xa8}, {0x1e, 0xa2}, {0x22, 0x83},
- {0x3a, 0x00}, {0x5c, 0x40}, {0x5f, 0x80}, {0x75, 0x0a}, {0x76, 0x4c},
- {0x77, 0x03}, {0xef, 0x01}
-};
-
-int va1j5jf8007t_prepare(struct dvb_frontend *fe)
-{
- struct va1j5jf8007t_state *state;
- const u8 (*bufs)[2];
- int size;
- u8 buf[2];
- struct i2c_msg msg;
- int i;
-
- state = fe->demodulator_priv;
-
- switch (state->config->frequency) {
- case VA1J5JF8007T_20MHZ:
- bufs = va1j5jf8007t_20mhz_prepare_bufs;
- size = ARRAY_SIZE(va1j5jf8007t_20mhz_prepare_bufs);
- break;
- case VA1J5JF8007T_25MHZ:
- bufs = va1j5jf8007t_25mhz_prepare_bufs;
- size = ARRAY_SIZE(va1j5jf8007t_25mhz_prepare_bufs);
- break;
- default:
- return -EINVAL;
- }
-
- msg.addr = state->config->demod_address;
- msg.flags = 0;
- msg.len = sizeof(buf);
- 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 va1j5jf8007t_init_frequency(state);
-}
-
-struct dvb_frontend *
-va1j5jf8007t_attach(const struct va1j5jf8007t_config *config,
- struct i2c_adapter *adap)
-{
- struct va1j5jf8007t_state *state;
- struct dvb_frontend *fe;
- u8 buf[2];
- struct i2c_msg msg;
-
- state = kzalloc(sizeof(struct va1j5jf8007t_state), GFP_KERNEL);
- if (!state)
- return NULL;
-
- state->config = config;
- state->adap = adap;
-
- fe = &state->fe;
- memcpy(&fe->ops, &va1j5jf8007t_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;
-}
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