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path: root/drivers/media/tuners
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-rw-r--r--drivers/media/tuners/mt2063.c44
-rw-r--r--drivers/media/tuners/mt2063.h4
-rw-r--r--drivers/media/tuners/tda18271-common.c104
3 files changed, 91 insertions, 61 deletions
diff --git a/drivers/media/tuners/mt2063.c b/drivers/media/tuners/mt2063.c
index 0ed9091ff48e..2e1a02e360ff 100644
--- a/drivers/media/tuners/mt2063.c
+++ b/drivers/media/tuners/mt2063.c
@@ -245,7 +245,7 @@ struct mt2063_state {
/*
* mt2063_write - Write data into the I2C bus
*/
-static u32 mt2063_write(struct mt2063_state *state, u8 reg, u8 *data, u32 len)
+static int mt2063_write(struct mt2063_state *state, u8 reg, u8 *data, u32 len)
{
struct dvb_frontend *fe = state->frontend;
int ret;
@@ -277,9 +277,9 @@ static u32 mt2063_write(struct mt2063_state *state, u8 reg, u8 *data, u32 len)
/*
* mt2063_write - Write register data into the I2C bus, caching the value
*/
-static u32 mt2063_setreg(struct mt2063_state *state, u8 reg, u8 val)
+static int mt2063_setreg(struct mt2063_state *state, u8 reg, u8 val)
{
- u32 status;
+ int status;
dprintk(2, "\n");
@@ -298,10 +298,10 @@ static u32 mt2063_setreg(struct mt2063_state *state, u8 reg, u8 val)
/*
* mt2063_read - Read data from the I2C bus
*/
-static u32 mt2063_read(struct mt2063_state *state,
+static int mt2063_read(struct mt2063_state *state,
u8 subAddress, u8 *pData, u32 cnt)
{
- u32 status = 0; /* Status to be returned */
+ int status = 0; /* Status to be returned */
struct dvb_frontend *fe = state->frontend;
u32 i = 0;
@@ -816,7 +816,7 @@ static u32 IsSpurInBand(struct MT2063_AvoidSpursData_t *pAS_Info,
*/
static u32 MT2063_AvoidSpurs(struct MT2063_AvoidSpursData_t *pAS_Info)
{
- u32 status = 0;
+ int status = 0;
u32 fm, fp; /* restricted range on LO's */
pAS_Info->bSpurAvoided = 0;
pAS_Info->nSpursFound = 0;
@@ -935,14 +935,14 @@ static u32 MT2063_AvoidSpurs(struct MT2063_AvoidSpursData_t *pAS_Info)
*
* This function returns 0, if no lock, 1 if locked and a value < 1 if error
*/
-static unsigned int mt2063_lockStatus(struct mt2063_state *state)
+static int mt2063_lockStatus(struct mt2063_state *state)
{
const u32 nMaxWait = 100; /* wait a maximum of 100 msec */
const u32 nPollRate = 2; /* poll status bits every 2 ms */
const u32 nMaxLoops = nMaxWait / nPollRate;
const u8 LO1LK = 0x80;
u8 LO2LK = 0x08;
- u32 status;
+ int status;
u32 nDelays = 0;
dprintk(2, "\n");
@@ -1069,7 +1069,7 @@ static u32 mt2063_get_dnc_output_enable(struct mt2063_state *state,
static u32 mt2063_set_dnc_output_enable(struct mt2063_state *state,
enum MT2063_DNC_Output_Enable nValue)
{
- u32 status = 0; /* Status to be returned */
+ int status = 0; /* Status to be returned */
u8 val = 0;
dprintk(2, "\n");
@@ -1203,7 +1203,7 @@ static u32 mt2063_set_dnc_output_enable(struct mt2063_state *state,
static u32 MT2063_SetReceiverMode(struct mt2063_state *state,
enum mt2063_delivery_sys Mode)
{
- u32 status = 0; /* Status to be returned */
+ int status = 0; /* Status to be returned */
u8 val;
u32 longval;
@@ -1345,7 +1345,7 @@ static u32 MT2063_SetReceiverMode(struct mt2063_state *state,
static u32 MT2063_ClearPowerMaskBits(struct mt2063_state *state,
enum MT2063_Mask_Bits Bits)
{
- u32 status = 0;
+ int status = 0;
dprintk(2, "\n");
Bits = (enum MT2063_Mask_Bits)(Bits & MT2063_ALL_SD); /* Only valid bits for this tuner */
@@ -1374,7 +1374,7 @@ static u32 MT2063_ClearPowerMaskBits(struct mt2063_state *state,
*/
static u32 MT2063_SoftwareShutdown(struct mt2063_state *state, u8 Shutdown)
{
- u32 status;
+ int status;
dprintk(2, "\n");
if (Shutdown == 1)
@@ -1540,7 +1540,7 @@ static u32 FindClearTuneFilter(struct mt2063_state *state, u32 f_in)
static u32 MT2063_Tune(struct mt2063_state *state, u32 f_in)
{ /* RF input center frequency */
- u32 status = 0;
+ int status = 0;
u32 LO1; /* 1st LO register value */
u32 Num1; /* Numerator for LO1 reg. value */
u32 f_IF1; /* 1st IF requested */
@@ -1803,7 +1803,7 @@ static const u8 MT2063B3_defaults[] = {
static int mt2063_init(struct dvb_frontend *fe)
{
- u32 status;
+ int status;
struct mt2063_state *state = fe->tuner_priv;
u8 all_resets = 0xF0; /* reset/load bits */
const u8 *def = NULL;
@@ -2249,8 +2249,8 @@ struct dvb_frontend *mt2063_attach(struct dvb_frontend *fe,
dprintk(2, "\n");
state = kzalloc(sizeof(struct mt2063_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
+ if (!state)
+ return NULL;
state->config = config;
state->i2c = i2c;
@@ -2261,18 +2261,15 @@ struct dvb_frontend *mt2063_attach(struct dvb_frontend *fe,
printk(KERN_INFO "%s: Attaching MT2063\n", __func__);
return fe;
-
-error:
- kfree(state);
- return NULL;
}
EXPORT_SYMBOL_GPL(mt2063_attach);
+#if 0
/*
* Ancillary routines visible outside mt2063
* FIXME: Remove them in favor of using standard tuner callbacks
*/
-unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe)
+static int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe)
{
struct mt2063_state *state = fe->tuner_priv;
int err = 0;
@@ -2285,9 +2282,8 @@ unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe)
return err;
}
-EXPORT_SYMBOL_GPL(tuner_MT2063_SoftwareShutdown);
-unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe)
+static int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe)
{
struct mt2063_state *state = fe->tuner_priv;
int err = 0;
@@ -2300,7 +2296,7 @@ unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe)
return err;
}
-EXPORT_SYMBOL_GPL(tuner_MT2063_ClearPowerMaskBits);
+#endif
MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
MODULE_DESCRIPTION("MT2063 Silicon tuner");
diff --git a/drivers/media/tuners/mt2063.h b/drivers/media/tuners/mt2063.h
index 3f5cfd93713f..ab24170c1571 100644
--- a/drivers/media/tuners/mt2063.h
+++ b/drivers/media/tuners/mt2063.h
@@ -23,10 +23,6 @@ static inline struct dvb_frontend *mt2063_attach(struct dvb_frontend *fe,
return NULL;
}
-/* FIXME: Should use the standard DVB attachment interfaces */
-unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe);
-unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe);
-
#endif /* CONFIG_DVB_MT2063 */
#endif /* __MT2063_H__ */
diff --git a/drivers/media/tuners/tda18271-common.c b/drivers/media/tuners/tda18271-common.c
index 221171eeb0c3..18c77afe2e4f 100644
--- a/drivers/media/tuners/tda18271-common.c
+++ b/drivers/media/tuners/tda18271-common.c
@@ -187,7 +187,8 @@ int tda18271_read_extended(struct dvb_frontend *fe)
return (ret == 2 ? 0 : ret);
}
-int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len)
+static int __tda18271_write_regs(struct dvb_frontend *fe, int idx, int len,
+ bool lock_i2c)
{
struct tda18271_priv *priv = fe->tuner_priv;
unsigned char *regs = priv->tda18271_regs;
@@ -198,7 +199,6 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len)
BUG_ON((len == 0) || (idx + len > sizeof(buf)));
-
switch (priv->small_i2c) {
case TDA18271_03_BYTE_CHUNK_INIT:
max = 3;
@@ -214,7 +214,19 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len)
max = 39;
}
- tda18271_i2c_gate_ctrl(fe, 1);
+
+ /*
+ * If lock_i2c is true, it will take the I2C bus for tda18271 private
+ * usage during the entire write ops, as otherwise, bad things could
+ * happen.
+ * During device init, several write operations will happen. So,
+ * tda18271_init_regs controls the I2C lock directly,
+ * disabling lock_i2c here.
+ */
+ if (lock_i2c) {
+ tda18271_i2c_gate_ctrl(fe, 1);
+ i2c_lock_adapter(priv->i2c_props.adap);
+ }
while (len) {
if (max > len)
max = len;
@@ -226,14 +238,17 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len)
msg.len = max + 1;
/* write registers */
- ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
+ ret = __i2c_transfer(priv->i2c_props.adap, &msg, 1);
if (ret != 1)
break;
idx += max;
len -= max;
}
- tda18271_i2c_gate_ctrl(fe, 0);
+ if (lock_i2c) {
+ i2c_unlock_adapter(priv->i2c_props.adap);
+ tda18271_i2c_gate_ctrl(fe, 0);
+ }
if (ret != 1)
tda_err("ERROR: idx = 0x%x, len = %d, "
@@ -242,10 +257,16 @@ int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len)
return (ret == 1 ? 0 : ret);
}
+int tda18271_write_regs(struct dvb_frontend *fe, int idx, int len)
+{
+ return __tda18271_write_regs(fe, idx, len, true);
+}
+
/*---------------------------------------------------------------------*/
-int tda18271_charge_pump_source(struct dvb_frontend *fe,
- enum tda18271_pll pll, int force)
+static int __tda18271_charge_pump_source(struct dvb_frontend *fe,
+ enum tda18271_pll pll, int force,
+ bool lock_i2c)
{
struct tda18271_priv *priv = fe->tuner_priv;
unsigned char *regs = priv->tda18271_regs;
@@ -255,9 +276,16 @@ int tda18271_charge_pump_source(struct dvb_frontend *fe,
regs[r_cp] &= ~0x20;
regs[r_cp] |= ((force & 1) << 5);
- return tda18271_write_regs(fe, r_cp, 1);
+ return __tda18271_write_regs(fe, r_cp, 1, lock_i2c);
+}
+
+int tda18271_charge_pump_source(struct dvb_frontend *fe,
+ enum tda18271_pll pll, int force)
+{
+ return __tda18271_charge_pump_source(fe, pll, force, true);
}
+
int tda18271_init_regs(struct dvb_frontend *fe)
{
struct tda18271_priv *priv = fe->tuner_priv;
@@ -267,6 +295,13 @@ int tda18271_init_regs(struct dvb_frontend *fe)
i2c_adapter_id(priv->i2c_props.adap),
priv->i2c_props.addr);
+ /*
+ * Don't let any other I2C transfer to happen at adapter during init,
+ * as those could cause bad things
+ */
+ tda18271_i2c_gate_ctrl(fe, 1);
+ i2c_lock_adapter(priv->i2c_props.adap);
+
/* initialize registers */
switch (priv->id) {
case TDA18271HDC1:
@@ -352,28 +387,28 @@ int tda18271_init_regs(struct dvb_frontend *fe)
regs[R_EB22] = 0x48;
regs[R_EB23] = 0xb0;
- tda18271_write_regs(fe, 0x00, TDA18271_NUM_REGS);
+ __tda18271_write_regs(fe, 0x00, TDA18271_NUM_REGS, false);
/* setup agc1 gain */
regs[R_EB17] = 0x00;
- tda18271_write_regs(fe, R_EB17, 1);
+ __tda18271_write_regs(fe, R_EB17, 1, false);
regs[R_EB17] = 0x03;
- tda18271_write_regs(fe, R_EB17, 1);
+ __tda18271_write_regs(fe, R_EB17, 1, false);
regs[R_EB17] = 0x43;
- tda18271_write_regs(fe, R_EB17, 1);
+ __tda18271_write_regs(fe, R_EB17, 1, false);
regs[R_EB17] = 0x4c;
- tda18271_write_regs(fe, R_EB17, 1);
+ __tda18271_write_regs(fe, R_EB17, 1, false);
/* setup agc2 gain */
if ((priv->id) == TDA18271HDC1) {
regs[R_EB20] = 0xa0;
- tda18271_write_regs(fe, R_EB20, 1);
+ __tda18271_write_regs(fe, R_EB20, 1, false);
regs[R_EB20] = 0xa7;
- tda18271_write_regs(fe, R_EB20, 1);
+ __tda18271_write_regs(fe, R_EB20, 1, false);
regs[R_EB20] = 0xe7;
- tda18271_write_regs(fe, R_EB20, 1);
+ __tda18271_write_regs(fe, R_EB20, 1, false);
regs[R_EB20] = 0xec;
- tda18271_write_regs(fe, R_EB20, 1);
+ __tda18271_write_regs(fe, R_EB20, 1, false);
}
/* image rejection calibration */
@@ -391,21 +426,21 @@ int tda18271_init_regs(struct dvb_frontend *fe)
regs[R_MD2] = 0x08;
regs[R_MD3] = 0x00;
- tda18271_write_regs(fe, R_EP3, 11);
+ __tda18271_write_regs(fe, R_EP3, 11, false);
if ((priv->id) == TDA18271HDC2) {
/* main pll cp source on */
- tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1);
+ __tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 1, false);
msleep(1);
/* main pll cp source off */
- tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0);
+ __tda18271_charge_pump_source(fe, TDA18271_MAIN_PLL, 0, false);
}
msleep(5); /* pll locking */
/* launch detector */
- tda18271_write_regs(fe, R_EP1, 1);
+ __tda18271_write_regs(fe, R_EP1, 1, false);
msleep(5); /* wanted low measurement */
regs[R_EP5] = 0x85;
@@ -413,11 +448,11 @@ int tda18271_init_regs(struct dvb_frontend *fe)
regs[R_CD1] = 0x66;
regs[R_CD2] = 0x70;
- tda18271_write_regs(fe, R_EP3, 7);
+ __tda18271_write_regs(fe, R_EP3, 7, false);
msleep(5); /* pll locking */
/* launch optimization algorithm */
- tda18271_write_regs(fe, R_EP2, 1);
+ __tda18271_write_regs(fe, R_EP2, 1, false);
msleep(30); /* image low optimization completion */
/* mid-band */
@@ -428,11 +463,11 @@ int tda18271_init_regs(struct dvb_frontend *fe)
regs[R_MD1] = 0x73;
regs[R_MD2] = 0x1a;
- tda18271_write_regs(fe, R_EP3, 11);
+ __tda18271_write_regs(fe, R_EP3, 11, false);
msleep(5); /* pll locking */
/* launch detector */
- tda18271_write_regs(fe, R_EP1, 1);
+ __tda18271_write_regs(fe, R_EP1, 1, false);
msleep(5); /* wanted mid measurement */
regs[R_EP5] = 0x86;
@@ -440,11 +475,11 @@ int tda18271_init_regs(struct dvb_frontend *fe)
regs[R_CD1] = 0x66;
regs[R_CD2] = 0xa0;
- tda18271_write_regs(fe, R_EP3, 7);
+ __tda18271_write_regs(fe, R_EP3, 7, false);
msleep(5); /* pll locking */
/* launch optimization algorithm */
- tda18271_write_regs(fe, R_EP2, 1);
+ __tda18271_write_regs(fe, R_EP2, 1, false);
msleep(30); /* image mid optimization completion */
/* high-band */
@@ -456,30 +491,33 @@ int tda18271_init_regs(struct dvb_frontend *fe)
regs[R_MD1] = 0x71;
regs[R_MD2] = 0xcd;
- tda18271_write_regs(fe, R_EP3, 11);
+ __tda18271_write_regs(fe, R_EP3, 11, false);
msleep(5); /* pll locking */
/* launch detector */
- tda18271_write_regs(fe, R_EP1, 1);
+ __tda18271_write_regs(fe, R_EP1, 1, false);
msleep(5); /* wanted high measurement */
regs[R_EP5] = 0x87;
regs[R_CD1] = 0x65;
regs[R_CD2] = 0x50;
- tda18271_write_regs(fe, R_EP3, 7);
+ __tda18271_write_regs(fe, R_EP3, 7, false);
msleep(5); /* pll locking */
/* launch optimization algorithm */
- tda18271_write_regs(fe, R_EP2, 1);
+ __tda18271_write_regs(fe, R_EP2, 1, false);
msleep(30); /* image high optimization completion */
/* return to normal mode */
regs[R_EP4] = 0x64;
- tda18271_write_regs(fe, R_EP4, 1);
+ __tda18271_write_regs(fe, R_EP4, 1, false);
/* synchronize */
- tda18271_write_regs(fe, R_EP1, 1);
+ __tda18271_write_regs(fe, R_EP1, 1, false);
+
+ i2c_unlock_adapter(priv->i2c_props.adap);
+ tda18271_i2c_gate_ctrl(fe, 0);
return 0;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-25 13:09:46 +0300