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Diffstat (limited to 'drivers/media/tuners/tuner_it913x.c')
-rw-r--r--drivers/media/tuners/tuner_it913x.c447
1 files changed, 0 insertions, 447 deletions
diff --git a/drivers/media/tuners/tuner_it913x.c b/drivers/media/tuners/tuner_it913x.c
deleted file mode 100644
index 6f30d7e535b8..000000000000
--- a/drivers/media/tuners/tuner_it913x.c
+++ /dev/null
@@ -1,447 +0,0 @@
-/*
- * ITE Tech IT9137 silicon tuner driver
- *
- * Copyright (C) 2011 Malcolm Priestley (tvboxspy@gmail.com)
- * IT9137 Copyright (C) ITE Tech Inc.
- *
- * 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 "tuner_it913x_priv.h"
-
-struct it913x_state {
- struct i2c_adapter *i2c_adap;
- u8 i2c_addr;
- u8 chip_ver;
- u8 tuner_type;
- u8 firmware_ver;
- u16 tun_xtal;
- u8 tun_fdiv;
- u8 tun_clk_mode;
- u32 tun_fn_min;
-};
-
-/* read multiple registers */
-static int it913x_rd_regs(struct it913x_state *state,
- u32 reg, u8 *data, u8 count)
-{
- int ret;
- u8 b[3];
- struct i2c_msg msg[2] = {
- { .addr = state->i2c_addr, .flags = 0,
- .buf = b, .len = sizeof(b) },
- { .addr = state->i2c_addr, .flags = I2C_M_RD,
- .buf = data, .len = count }
- };
- b[0] = (u8)(reg >> 16) & 0xff;
- b[1] = (u8)(reg >> 8) & 0xff;
- b[2] = (u8) reg & 0xff;
- b[0] |= 0x80; /* All reads from demodulator */
-
- ret = i2c_transfer(state->i2c_adap, msg, 2);
-
- return ret;
-}
-
-/* read single register */
-static int it913x_rd_reg(struct it913x_state *state, u32 reg)
-{
- int ret;
- u8 b[1];
- ret = it913x_rd_regs(state, reg, &b[0], sizeof(b));
- return (ret < 0) ? -ENODEV : b[0];
-}
-
-/* write multiple registers */
-static int it913x_wr_regs(struct it913x_state *state,
- u8 pro, u32 reg, u8 buf[], u8 count)
-{
- u8 b[256];
- struct i2c_msg msg[1] = {
- { .addr = state->i2c_addr, .flags = 0,
- .buf = b, .len = 3 + count }
- };
- int ret;
- b[0] = (u8)(reg >> 16) & 0xff;
- b[1] = (u8)(reg >> 8) & 0xff;
- b[2] = (u8) reg & 0xff;
- memcpy(&b[3], buf, count);
-
- if (pro == PRO_DMOD)
- b[0] |= 0x80;
-
- ret = i2c_transfer(state->i2c_adap, msg, 1);
-
- if (ret < 0)
- return -EIO;
-
- return 0;
-}
-
-/* write single register */
-static int it913x_wr_reg(struct it913x_state *state,
- u8 pro, u32 reg, u32 data)
-{
- int ret;
- u8 b[4];
- u8 s;
-
- b[0] = data >> 24;
- b[1] = (data >> 16) & 0xff;
- b[2] = (data >> 8) & 0xff;
- b[3] = data & 0xff;
- /* expand write as needed */
- if (data < 0x100)
- s = 3;
- else if (data < 0x1000)
- s = 2;
- else if (data < 0x100000)
- s = 1;
- else
- s = 0;
-
- ret = it913x_wr_regs(state, pro, reg, &b[s], sizeof(b) - s);
-
- return ret;
-}
-
-static int it913x_script_loader(struct it913x_state *state,
- struct it913xset *loadscript)
-{
- int ret, i;
- if (loadscript == NULL)
- return -EINVAL;
-
- for (i = 0; i < 1000; ++i) {
- if (loadscript[i].pro == 0xff)
- break;
- ret = it913x_wr_regs(state, loadscript[i].pro,
- loadscript[i].address,
- loadscript[i].reg, loadscript[i].count);
- if (ret < 0)
- return -ENODEV;
- }
- return 0;
-}
-
-static int it913x_init(struct dvb_frontend *fe)
-{
- struct it913x_state *state = fe->tuner_priv;
- int ret, i, reg;
- u8 val, nv_val;
- u8 nv[] = {48, 32, 24, 16, 12, 8, 6, 4, 2};
- u8 b[2];
-
- reg = it913x_rd_reg(state, 0xec86);
- switch (reg) {
- case 0:
- state->tun_clk_mode = reg;
- state->tun_xtal = 2000;
- state->tun_fdiv = 3;
- val = 16;
- break;
- case -ENODEV:
- return -ENODEV;
- case 1:
- default:
- state->tun_clk_mode = reg;
- state->tun_xtal = 640;
- state->tun_fdiv = 1;
- val = 6;
- break;
- }
-
- reg = it913x_rd_reg(state, 0xed03);
-
- if (reg < 0)
- return -ENODEV;
- else if (reg < ARRAY_SIZE(nv))
- nv_val = nv[reg];
- else
- nv_val = 2;
-
- for (i = 0; i < 50; i++) {
- ret = it913x_rd_regs(state, 0xed23, &b[0], sizeof(b));
- reg = (b[1] << 8) + b[0];
- if (reg > 0)
- break;
- if (ret < 0)
- return -ENODEV;
- udelay(2000);
- }
- state->tun_fn_min = state->tun_xtal * reg;
- state->tun_fn_min /= (state->tun_fdiv * nv_val);
- dev_dbg(&state->i2c_adap->dev, "%s: Tuner fn_min %d\n", __func__,
- state->tun_fn_min);
-
- if (state->chip_ver > 1)
- msleep(50);
- else {
- for (i = 0; i < 50; i++) {
- reg = it913x_rd_reg(state, 0xec82);
- if (reg > 0)
- break;
- if (reg < 0)
- return -ENODEV;
- udelay(2000);
- }
- }
-
- /* Power Up Tuner - common all versions */
- ret = it913x_wr_reg(state, PRO_DMOD, 0xec40, 0x1);
- ret |= it913x_wr_reg(state, PRO_DMOD, 0xfba8, 0x0);
- ret |= it913x_wr_reg(state, PRO_DMOD, 0xec57, 0x0);
- ret |= it913x_wr_reg(state, PRO_DMOD, 0xec58, 0x0);
-
- return it913x_wr_reg(state, PRO_DMOD, 0xed81, val);
-}
-
-static int it9137_set_params(struct dvb_frontend *fe)
-{
- struct it913x_state *state = fe->tuner_priv;
- struct it913xset *set_tuner = set_it9137_template;
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- u32 bandwidth = p->bandwidth_hz;
- u32 frequency_m = p->frequency;
- int ret, reg;
- u32 frequency = frequency_m / 1000;
- u32 freq, temp_f, tmp;
- u16 iqik_m_cal;
- u16 n_div;
- u8 n;
- u8 l_band;
- u8 lna_band;
- u8 bw;
-
- if (state->firmware_ver == 1)
- set_tuner = set_it9135_template;
- else
- set_tuner = set_it9137_template;
-
- dev_dbg(&state->i2c_adap->dev, "%s: Tuner Frequency %d Bandwidth %d\n",
- __func__, frequency, bandwidth);
-
- if (frequency >= 51000 && frequency <= 440000) {
- l_band = 0;
- lna_band = 0;
- } else if (frequency > 440000 && frequency <= 484000) {
- l_band = 1;
- lna_band = 1;
- } else if (frequency > 484000 && frequency <= 533000) {
- l_band = 1;
- lna_band = 2;
- } else if (frequency > 533000 && frequency <= 587000) {
- l_band = 1;
- lna_band = 3;
- } else if (frequency > 587000 && frequency <= 645000) {
- l_band = 1;
- lna_band = 4;
- } else if (frequency > 645000 && frequency <= 710000) {
- l_band = 1;
- lna_band = 5;
- } else if (frequency > 710000 && frequency <= 782000) {
- l_band = 1;
- lna_band = 6;
- } else if (frequency > 782000 && frequency <= 860000) {
- l_band = 1;
- lna_band = 7;
- } else if (frequency > 1450000 && frequency <= 1492000) {
- l_band = 1;
- lna_band = 0;
- } else if (frequency > 1660000 && frequency <= 1685000) {
- l_band = 1;
- lna_band = 1;
- } else
- return -EINVAL;
- set_tuner[0].reg[0] = lna_band;
-
- switch (bandwidth) {
- case 5000000:
- bw = 0;
- break;
- case 6000000:
- bw = 2;
- break;
- case 7000000:
- bw = 4;
- break;
- default:
- case 8000000:
- bw = 6;
- break;
- }
-
- set_tuner[1].reg[0] = bw;
- set_tuner[2].reg[0] = 0xa0 | (l_band << 3);
-
- if (frequency > 53000 && frequency <= 74000) {
- n_div = 48;
- n = 0;
- } else if (frequency > 74000 && frequency <= 111000) {
- n_div = 32;
- n = 1;
- } else if (frequency > 111000 && frequency <= 148000) {
- n_div = 24;
- n = 2;
- } else if (frequency > 148000 && frequency <= 222000) {
- n_div = 16;
- n = 3;
- } else if (frequency > 222000 && frequency <= 296000) {
- n_div = 12;
- n = 4;
- } else if (frequency > 296000 && frequency <= 445000) {
- n_div = 8;
- n = 5;
- } else if (frequency > 445000 && frequency <= state->tun_fn_min) {
- n_div = 6;
- n = 6;
- } else if (frequency > state->tun_fn_min && frequency <= 950000) {
- n_div = 4;
- n = 7;
- } else if (frequency > 1450000 && frequency <= 1680000) {
- n_div = 2;
- n = 0;
- } else
- return -EINVAL;
-
- reg = it913x_rd_reg(state, 0xed81);
- iqik_m_cal = (u16)reg * n_div;
-
- if (reg < 0x20) {
- if (state->tun_clk_mode == 0)
- iqik_m_cal = (iqik_m_cal * 9) >> 5;
- else
- iqik_m_cal >>= 1;
- } else {
- iqik_m_cal = 0x40 - iqik_m_cal;
- if (state->tun_clk_mode == 0)
- iqik_m_cal = ~((iqik_m_cal * 9) >> 5);
- else
- iqik_m_cal = ~(iqik_m_cal >> 1);
- }
-
- temp_f = frequency * (u32)n_div * (u32)state->tun_fdiv;
- freq = temp_f / state->tun_xtal;
- tmp = freq * state->tun_xtal;
-
- if ((temp_f - tmp) >= (state->tun_xtal >> 1))
- freq++;
-
- freq += (u32) n << 13;
- /* Frequency OMEGA_IQIK_M_CAL_MID*/
- temp_f = freq + (u32)iqik_m_cal;
-
- set_tuner[3].reg[0] = temp_f & 0xff;
- set_tuner[4].reg[0] = (temp_f >> 8) & 0xff;
-
- dev_dbg(&state->i2c_adap->dev, "%s: High Frequency = %04x\n",
- __func__, temp_f);
-
- /* Lower frequency */
- set_tuner[5].reg[0] = freq & 0xff;
- set_tuner[6].reg[0] = (freq >> 8) & 0xff;
-
- dev_dbg(&state->i2c_adap->dev, "%s: low Frequency = %04x\n",
- __func__, freq);
-
- ret = it913x_script_loader(state, set_tuner);
-
- return (ret < 0) ? -ENODEV : 0;
-}
-
-/* Power sequence */
-/* Power Up Tuner on -> Frontend suspend off -> Tuner clk on */
-/* Power Down Frontend suspend on -> Tuner clk off -> Tuner off */
-
-static int it913x_sleep(struct dvb_frontend *fe)
-{
- struct it913x_state *state = fe->tuner_priv;
- return it913x_script_loader(state, it9137_tuner_off);
-}
-
-static int it913x_release(struct dvb_frontend *fe)
-{
- kfree(fe->tuner_priv);
- return 0;
-}
-
-static const struct dvb_tuner_ops it913x_tuner_ops = {
- .info = {
- .name = "ITE Tech IT913X",
- .frequency_min = 174000000,
- .frequency_max = 862000000,
- },
-
- .release = it913x_release,
-
- .init = it913x_init,
- .sleep = it913x_sleep,
- .set_params = it9137_set_params,
-};
-
-struct dvb_frontend *it913x_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c_adap, u8 i2c_addr, u8 config)
-{
- struct it913x_state *state = NULL;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct it913x_state), GFP_KERNEL);
- if (state == NULL)
- return NULL;
-
- state->i2c_adap = i2c_adap;
- state->i2c_addr = i2c_addr;
-
- switch (config) {
- case AF9033_TUNER_IT9135_38:
- case AF9033_TUNER_IT9135_51:
- case AF9033_TUNER_IT9135_52:
- state->chip_ver = 0x01;
- break;
- case AF9033_TUNER_IT9135_60:
- case AF9033_TUNER_IT9135_61:
- case AF9033_TUNER_IT9135_62:
- state->chip_ver = 0x02;
- break;
- default:
- dev_dbg(&i2c_adap->dev,
- "%s: invalid config=%02x\n", __func__, config);
- goto error;
- }
-
- state->tuner_type = config;
- state->firmware_ver = 1;
-
- fe->tuner_priv = state;
- memcpy(&fe->ops.tuner_ops, &it913x_tuner_ops,
- sizeof(struct dvb_tuner_ops));
-
- dev_info(&i2c_adap->dev,
- "%s: ITE Tech IT913X successfully attached\n",
- KBUILD_MODNAME);
- dev_dbg(&i2c_adap->dev, "%s: config=%02x chip_ver=%02x\n",
- __func__, config, state->chip_ver);
-
- return fe;
-error:
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(it913x_attach);
-
-MODULE_DESCRIPTION("ITE Tech IT913X silicon tuner driver");
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.