Signed-off-by: Antti Palosaari <cr...@iki.fi>
---
drivers/media/common/tuners/tda18218.c | 69
+++++---------------------
drivers/media/common/tuners/tda18218_priv.h | 3 +
2 files changed, 17 insertions(+), 55 deletions(-)
diff --git a/drivers/media/common/tuners/tda18218.c
b/drivers/media/common/tuners/tda18218.c
index aacfe23..fef5560f 100644
--- a/drivers/media/common/tuners/tda18218.c
+++ b/drivers/media/common/tuners/tda18218.c
@@ -25,46 +25,6 @@ static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
-/* write multiple registers */
-static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8
*val, u8 len)
-{
- int ret = 0;
- u8 buf[1+len], quotient, remainder, i, msg_len, msg_len_max;
- struct i2c_msg msg[1] = {
- {
- .addr = priv->cfg->i2c_address,
- .flags = 0,
- .buf = buf,
- }
- };
-
- msg_len_max = priv->cfg->i2c_wr_max - 1;
- quotient = len / msg_len_max;
- remainder = len % msg_len_max;
- msg_len = msg_len_max;
- for (i = 0; (i <= quotient && remainder); i++) {
- if (i == quotient) /* set len of the last msg */
- msg_len = remainder;
-
- msg[0].len = msg_len + 1;
- buf[0] = reg + i * msg_len_max;
- memcpy(&buf[1], &val[i * msg_len_max], msg_len);
-
- ret = i2c_transfer(priv->i2c, msg, 1);
- if (ret != 1)
- break;
- }
-
- if (ret == 1) {
- ret = 0;
- } else {
- warn("i2c wr failed ret:%d reg:%02x len:%d", ret, reg, len);
- ret = -EREMOTEIO;
- }
-
- return ret;
-}
-
/* read multiple registers */
static int tda18218_rd_regs(struct tda18218_priv *priv, u8 reg, u8
*val, u8 len)
{
@@ -96,14 +56,7 @@ static int tda18218_rd_regs(struct tda18218_priv
*priv, u8 reg, u8 *val, u8 len)
return ret;
}
-/* write single register */
-static int tda18218_wr_reg(struct tda18218_priv *priv, u8 reg, u8 val)
-{
- return tda18218_wr_regs(priv, reg, &val, 1);
-}
-
/* read single register */
-
static int tda18218_rd_reg(struct tda18218_priv *priv, u8 reg, u8 *val)
{
return tda18218_rd_regs(priv, reg, val, 1);
@@ -167,7 +120,7 @@ static int tda18218_set_params(struct dvb_frontend *fe,
buf[0] = (priv->regs[R1A_IF1] & ~7) | BP_Filter; /* BP_Filter */
buf[1] = (priv->regs[R1B_IF2] & ~3) | LP_Fc; /* LP_Fc */
buf[2] = priv->regs[R1C_AGC2B];
- ret = tda18218_wr_regs(priv, R1A_IF1, buf, 3);
+ ret = dvb_wr_regs(&priv->i2c_cfg, R1A_IF1, buf, 3);
if (ret)
goto error;
@@ -175,23 +128,23 @@ static int tda18218_set_params(struct dvb_frontend
*fe,
buf[1] = (LO_Frac / 1000) >> 4; /* LO_Frac_1 */
buf[2] = (LO_Frac / 1000) << 4 |
(priv->regs[R0C_MD5] & 0x0f); /* LO_Frac_2 */
- ret = tda18218_wr_regs(priv, R0A_MD3, buf, 3);
+ ret = dvb_wr_regs(&priv->i2c_cfg, R0A_MD3, buf, 3);
if (ret)
goto error;
buf[0] = priv->regs[R0F_MD8] | (1 << 6); /* Freq_prog_Start */
- ret = tda18218_wr_regs(priv, R0F_MD8, buf, 1);
+ ret = dvb_wr_regs(&priv->i2c_cfg, R0F_MD8, buf, 1);
if (ret)
goto error;
buf[0] = priv->regs[R0F_MD8] & ~(1 << 6); /* Freq_prog_Start */
- ret = tda18218_wr_regs(priv, R0F_MD8, buf, 1);
+ ret = dvb_wr_regs(&priv->i2c_cfg, R0F_MD8, buf, 1);
if (ret)
goto error;
/* trigger AGC */
for (i = 0; i < ARRAY_SIZE(agc); i++) {
- ret = tda18218_wr_reg(priv, agc[i][0], agc[i][1]);
+ ret = dvb_wr_reg(&priv->i2c_cfg, agc[i][0], agc[i][1]);
if (ret)
goto error;
}
@@ -215,7 +168,8 @@ static int tda18218_sleep(struct dvb_frontend *fe)
fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
/* standby */
- ret = tda18218_wr_reg(priv, R17_PD1, priv->regs[R17_PD1] | (1 << 0));
+ ret = dvb_wr_reg(&priv->i2c_cfg, R17_PD1,
+ priv->regs[R17_PD1] | (1 << 0));
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
@@ -236,7 +190,8 @@ static int tda18218_init(struct dvb_frontend *fe)
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
- ret = tda18218_wr_regs(priv, R00_ID, priv->regs, TDA18218_NUM_REGS);
+ ret = dvb_wr_regs(&priv->i2c_cfg, R00_ID, priv->regs,
+ TDA18218_NUM_REGS);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
@@ -292,6 +247,9 @@ struct dvb_frontend *tda18218_attach(struct
dvb_frontend *fe,
priv->cfg = cfg;
priv->i2c = i2c;
+ priv->i2c_cfg.adapter = i2c;
+ priv->i2c_cfg.addr = cfg->i2c_address;
+ priv->i2c_cfg.max_wr = cfg->i2c_wr_max;
fe->tuner_priv = priv;
if (fe->ops.i2c_gate_ctrl)
@@ -318,7 +276,8 @@ struct dvb_frontend *tda18218_attach(struct
dvb_frontend *fe,
}
/* standby */
- ret = tda18218_wr_reg(priv, R17_PD1, priv->regs[R17_PD1] | (1 << 0));
+ ret = dvb_wr_reg(&priv->i2c_cfg, R17_PD1,
+ priv->regs[R17_PD1] | (1 << 0));
if (ret)
dbg("%s: failed ret:%d", __func__, ret);
diff --git a/drivers/media/common/tuners/tda18218_priv.h
b/drivers/media/common/tuners/tda18218_priv.h
index 904e536..72d7277 100644
--- a/drivers/media/common/tuners/tda18218_priv.h
+++ b/drivers/media/common/tuners/tda18218_priv.h
@@ -23,6 +23,8 @@
#define LOG_PREFIX "tda18218"
+#include "dvb_generic.h"
+
#undef dbg
#define dbg(f, arg...) \
if (debug) \
@@ -99,6 +101,7 @@
struct tda18218_priv {
struct tda18218_config *cfg;
struct i2c_adapter *i2c;
+ struct dvb_i2c_cfg i2c_cfg;
u8 regs[TDA18218_NUM_REGS];
};
--
1.7.4.4
--
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