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Diffstat (limited to 'drivers/media/common/tuners/tda18212.c')
-rw-r--r--drivers/media/common/tuners/tda18212.c326
1 files changed, 0 insertions, 326 deletions
diff --git a/drivers/media/common/tuners/tda18212.c b/drivers/media/common/tuners/tda18212.c
deleted file mode 100644
index 602c2e392b17..000000000000
--- a/drivers/media/common/tuners/tda18212.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * NXP TDA18212HN silicon tuner driver
- *
- * Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include "tda18212.h"
-
-struct tda18212_priv {
- struct tda18212_config *cfg;
- struct i2c_adapter *i2c;
-
- u32 if_frequency;
-};
-
-#define dbg(fmt, arg...) \
-do { \
- if (debug) \
- pr_info("%s: " fmt, __func__, ##arg); \
-} while (0)
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
-
-/* write multiple registers */
-static int tda18212_wr_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
- int len)
-{
- int ret;
- u8 buf[len+1];
- struct i2c_msg msg[1] = {
- {
- .addr = priv->cfg->i2c_address,
- .flags = 0,
- .len = sizeof(buf),
- .buf = buf,
- }
- };
-
- buf[0] = reg;
- memcpy(&buf[1], val, len);
-
- ret = i2c_transfer(priv->i2c, msg, 1);
- if (ret == 1) {
- ret = 0;
- } else {
- pr_warn("i2c wr failed ret:%d reg:%02x len:%d\n",
- ret, reg, len);
- ret = -EREMOTEIO;
- }
- return ret;
-}
-
-/* read multiple registers */
-static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
- int len)
-{
- int ret;
- u8 buf[len];
- struct i2c_msg msg[2] = {
- {
- .addr = priv->cfg->i2c_address,
- .flags = 0,
- .len = 1,
- .buf = &reg,
- }, {
- .addr = priv->cfg->i2c_address,
- .flags = I2C_M_RD,
- .len = sizeof(buf),
- .buf = buf,
- }
- };
-
- ret = i2c_transfer(priv->i2c, msg, 2);
- if (ret == 2) {
- memcpy(val, buf, len);
- ret = 0;
- } else {
- pr_warn("i2c rd failed ret:%d reg:%02x len:%d\n",
- ret, reg, len);
- ret = -EREMOTEIO;
- }
-
- return ret;
-}
-
-/* write single register */
-static int tda18212_wr_reg(struct tda18212_priv *priv, u8 reg, u8 val)
-{
- return tda18212_wr_regs(priv, reg, &val, 1);
-}
-
-/* read single register */
-static int tda18212_rd_reg(struct tda18212_priv *priv, u8 reg, u8 *val)
-{
- return tda18212_rd_regs(priv, reg, val, 1);
-}
-
-#if 0 /* keep, useful when developing driver */
-static void tda18212_dump_regs(struct tda18212_priv *priv)
-{
- int i;
- u8 buf[256];
-
- #define TDA18212_RD_LEN 32
- for (i = 0; i < sizeof(buf); i += TDA18212_RD_LEN)
- tda18212_rd_regs(priv, i, &buf[i], TDA18212_RD_LEN);
-
- print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 32, 1, buf,
- sizeof(buf), true);
-
- return;
-}
-#endif
-
-static int tda18212_set_params(struct dvb_frontend *fe)
-{
- struct tda18212_priv *priv = fe->tuner_priv;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int ret, i;
- u32 if_khz;
- u8 buf[9];
- #define DVBT_6 0
- #define DVBT_7 1
- #define DVBT_8 2
- #define DVBT2_6 3
- #define DVBT2_7 4
- #define DVBT2_8 5
- #define DVBC_6 6
- #define DVBC_8 7
- static const u8 bw_params[][3] = {
- /* reg: 0f 13 23 */
- [DVBT_6] = { 0xb3, 0x20, 0x03 },
- [DVBT_7] = { 0xb3, 0x31, 0x01 },
- [DVBT_8] = { 0xb3, 0x22, 0x01 },
- [DVBT2_6] = { 0xbc, 0x20, 0x03 },
- [DVBT2_7] = { 0xbc, 0x72, 0x03 },
- [DVBT2_8] = { 0xbc, 0x22, 0x01 },
- [DVBC_6] = { 0x92, 0x50, 0x03 },
- [DVBC_8] = { 0x92, 0x53, 0x03 },
- };
-
- dbg("delsys=%d RF=%d BW=%d\n",
- c->delivery_system, c->frequency, c->bandwidth_hz);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- switch (c->delivery_system) {
- case SYS_DVBT:
- switch (c->bandwidth_hz) {
- case 6000000:
- if_khz = priv->cfg->if_dvbt_6;
- i = DVBT_6;
- break;
- case 7000000:
- if_khz = priv->cfg->if_dvbt_7;
- i = DVBT_7;
- break;
- case 8000000:
- if_khz = priv->cfg->if_dvbt_8;
- i = DVBT_8;
- break;
- default:
- ret = -EINVAL;
- goto error;
- }
- break;
- case SYS_DVBT2:
- switch (c->bandwidth_hz) {
- case 6000000:
- if_khz = priv->cfg->if_dvbt2_6;
- i = DVBT2_6;
- break;
- case 7000000:
- if_khz = priv->cfg->if_dvbt2_7;
- i = DVBT2_7;
- break;
- case 8000000:
- if_khz = priv->cfg->if_dvbt2_8;
- i = DVBT2_8;
- break;
- default:
- ret = -EINVAL;
- goto error;
- }
- break;
- case SYS_DVBC_ANNEX_A:
- case SYS_DVBC_ANNEX_C:
- if_khz = priv->cfg->if_dvbc;
- i = DVBC_8;
- break;
- default:
- ret = -EINVAL;
- goto error;
- }
-
- ret = tda18212_wr_reg(priv, 0x23, bw_params[i][2]);
- if (ret)
- goto error;
-
- ret = tda18212_wr_reg(priv, 0x06, 0x00);
- if (ret)
- goto error;
-
- ret = tda18212_wr_reg(priv, 0x0f, bw_params[i][0]);
- if (ret)
- goto error;
-
- buf[0] = 0x02;
- buf[1] = bw_params[i][1];
- buf[2] = 0x03; /* default value */
- buf[3] = DIV_ROUND_CLOSEST(if_khz, 50);
- buf[4] = ((c->frequency / 1000) >> 16) & 0xff;
- buf[5] = ((c->frequency / 1000) >> 8) & 0xff;
- buf[6] = ((c->frequency / 1000) >> 0) & 0xff;
- buf[7] = 0xc1;
- buf[8] = 0x01;
- ret = tda18212_wr_regs(priv, 0x12, buf, sizeof(buf));
- if (ret)
- goto error;
-
- /* actual IF rounded as it is on register */
- priv->if_frequency = buf[3] * 50 * 1000;
-
-exit:
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-
- return ret;
-
-error:
- dbg("failed:%d\n", ret);
- goto exit;
-}
-
-static int tda18212_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- struct tda18212_priv *priv = fe->tuner_priv;
-
- *frequency = priv->if_frequency;
-
- return 0;
-}
-
-static int tda18212_release(struct dvb_frontend *fe)
-{
- kfree(fe->tuner_priv);
- fe->tuner_priv = NULL;
- return 0;
-}
-
-static const struct dvb_tuner_ops tda18212_tuner_ops = {
- .info = {
- .name = "NXP TDA18212",
-
- .frequency_min = 48000000,
- .frequency_max = 864000000,
- .frequency_step = 1000,
- },
-
- .release = tda18212_release,
-
- .set_params = tda18212_set_params,
- .get_if_frequency = tda18212_get_if_frequency,
-};
-
-struct dvb_frontend *tda18212_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, struct tda18212_config *cfg)
-{
- struct tda18212_priv *priv = NULL;
- int ret;
- u8 val;
-
- priv = kzalloc(sizeof(struct tda18212_priv), GFP_KERNEL);
- if (priv == NULL)
- return NULL;
-
- priv->cfg = cfg;
- priv->i2c = i2c;
- fe->tuner_priv = priv;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- /* check if the tuner is there */
- ret = tda18212_rd_reg(priv, 0x00, &val);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-
- dbg("ret:%d chip ID:%02x\n", ret, val);
- if (ret || val != 0xc7) {
- kfree(priv);
- return NULL;
- }
-
- pr_info("NXP TDA18212HN successfully identified\n");
-
- memcpy(&fe->ops.tuner_ops, &tda18212_tuner_ops,
- sizeof(struct dvb_tuner_ops));
-
- return fe;
-}
-EXPORT_SYMBOL(tda18212_attach);
-
-MODULE_DESCRIPTION("NXP TDA18212HN silicon tuner driver");
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_LICENSE("GPL");
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