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path: root/drivers/media/dvb-frontends
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Diffstat (limited to 'drivers/media/dvb-frontends')
-rw-r--r--drivers/media/dvb-frontends/mb86a20s.c96
1 files changed, 52 insertions, 44 deletions
diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c
index b348f97aa7b5..c52ae2ea0bf9 100644
--- a/drivers/media/dvb-frontends/mb86a20s.c
+++ b/drivers/media/dvb-frontends/mb86a20s.c
@@ -24,18 +24,6 @@ static int debug = 1;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
-#define rc(args...) do { \
- printk(KERN_ERR "mb86a20s: " args); \
-} while (0)
-
-#define dprintk(args...) \
- do { \
- if (debug) { \
- printk(KERN_DEBUG "mb86a20s: %s: ", __func__); \
- printk(args); \
- } \
- } while (0)
-
struct mb86a20s_state {
struct i2c_adapter *i2c;
const struct mb86a20s_config *config;
@@ -190,8 +178,9 @@ static int mb86a20s_i2c_writereg(struct mb86a20s_state *state,
rc = i2c_transfer(state->i2c, &msg, 1);
if (rc != 1) {
- printk("%s: writereg error (rc == %i, reg == 0x%02x,"
- " data == 0x%02x)\n", __func__, rc, reg, data);
+ dev_err(&state->i2c->dev,
+ "%s: writereg error (rc == %i, reg == 0x%02x, data == 0x%02x)\n",
+ __func__, rc, reg, data);
return rc;
}
@@ -225,8 +214,9 @@ static int mb86a20s_i2c_readreg(struct mb86a20s_state *state,
rc = i2c_transfer(state->i2c, msg, 2);
if (rc != 2) {
- rc("%s: reg=0x%x (error=%d)\n", __func__, reg, rc);
- return rc;
+ dev_err(&state->i2c->dev, "%s: reg=0x%x (error=%d)\n",
+ __func__, reg, rc);
+ return (rc < 0) ? rc : -EIO;
}
return val;
@@ -245,7 +235,6 @@ static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status)
struct mb86a20s_state *state = fe->demodulator_priv;
int val;
- dprintk("\n");
*status = 0;
val = mb86a20s_readreg(state, 0x0a) & 0xf;
@@ -267,7 +256,8 @@ static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status)
if (val >= 8) /* Maybe 9? */
*status |= FE_HAS_LOCK;
- dprintk("val = %d, status = 0x%02x\n", val, *status);
+ dev_dbg(&state->i2c->dev, "%s: Status = 0x%02x (state = %d)\n",
+ __func__, *status, val);
return 0;
}
@@ -278,8 +268,6 @@ static int mb86a20s_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
unsigned rf_max, rf_min, rf;
u8 val;
- dprintk("\n");
-
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
@@ -300,12 +288,13 @@ static int mb86a20s_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
rf_max = (rf_max + rf_min) / 2;
if (rf_max - rf_min < 4) {
*strength = (((rf_max + rf_min) / 2) * 65535) / 4095;
+ dev_dbg(&state->i2c->dev,
+ "%s: signal strength = %d (%d < RF=%d < %d)\n",
+ __func__, rf, rf_min, rf >> 4, rf_max);
break;
}
} while (1);
- dprintk("signal strength = %d\n", *strength);
-
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
@@ -419,15 +408,17 @@ static int mb86a20s_get_segment_count(struct mb86a20s_state *state,
unsigned layer)
{
int rc, count;
-
static unsigned char reg[] = {
[0] = 0x89, /* Layer A */
[1] = 0x8d, /* Layer B */
[2] = 0x91, /* Layer C */
};
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
+
if (layer >= ARRAY_SIZE(reg))
return -EINVAL;
+
rc = mb86a20s_writereg(state, 0x6d, reg[layer]);
if (rc < 0)
return rc;
@@ -436,13 +427,18 @@ static int mb86a20s_get_segment_count(struct mb86a20s_state *state,
return rc;
count = (rc >> 4) & 0x0f;
+ dev_dbg(&state->i2c->dev, "%s: segments: %d.\n", __func__, count);
+
return count;
}
static void mb86a20s_reset_frontend_cache(struct dvb_frontend *fe)
{
+ struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
+
/* Fixed parameters */
c->delivery_system = SYS_ISDBT;
c->bandwidth_hz = 6000000;
@@ -461,6 +457,8 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int i, rc;
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
+
/* Reset frontend cache to default values */
mb86a20s_reset_frontend_cache(fe);
@@ -479,9 +477,12 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
/* Get per-layer data */
for (i = 0; i < 3; i++) {
+ dev_dbg(&state->i2c->dev, "%s: getting data for layer %c.\n",
+ __func__, 'A' + i);
+
rc = mb86a20s_get_segment_count(state, i);
if (rc < 0)
- goto error;
+ goto noperlayer_error;
if (rc >= 0 && rc < 14)
c->layer[i].segment_count = rc;
else {
@@ -491,15 +492,21 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
c->isdbt_layer_enabled |= 1 << i;
rc = mb86a20s_get_modulation(state, i);
if (rc < 0)
- goto error;
+ goto noperlayer_error;
+ dev_dbg(&state->i2c->dev, "%s: modulation %d.\n",
+ __func__, rc);
c->layer[i].modulation = rc;
rc = mb86a20s_get_fec(state, i);
if (rc < 0)
- goto error;
+ goto noperlayer_error;
+ dev_dbg(&state->i2c->dev, "%s: FEC %d.\n",
+ __func__, rc);
c->layer[i].fec = rc;
rc = mb86a20s_get_interleaving(state, i);
if (rc < 0)
- goto error;
+ goto noperlayer_error;
+ dev_dbg(&state->i2c->dev, "%s: interleaving %d.\n",
+ __func__, rc);
c->layer[i].interleaving = rc;
}
@@ -544,7 +551,7 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
}
}
-error:
+noperlayer_error:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
@@ -558,7 +565,7 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
int rc;
u8 regD5 = 1;
- dprintk("\n");
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
@@ -585,10 +592,11 @@ err:
if (rc < 0) {
state->need_init = true;
- printk(KERN_INFO "mb86a20s: Init failed. Will try again later\n");
+ dev_info(&state->i2c->dev,
+ "mb86a20s: Init failed. Will try again later\n");
} else {
state->need_init = false;
- dprintk("Initialization succeeded.\n");
+ dev_dbg(&state->i2c->dev, "Initialization succeeded.\n");
}
return rc;
}
@@ -603,8 +611,7 @@ static int mb86a20s_set_frontend(struct dvb_frontend *fe)
*/
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
#endif
-
- dprintk("\n");
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
/*
* Gate should already be opened, but it doesn't hurt to
@@ -612,7 +619,6 @@ static int mb86a20s_set_frontend(struct dvb_frontend *fe)
*/
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
- dprintk("Calling tuner set parameters\n");
fe->ops.tuner_ops.set_params(fe);
/*
@@ -637,13 +643,11 @@ static int mb86a20s_set_frontend(struct dvb_frontend *fe)
return rc;
}
-
static int mb86a20s_read_status_gate(struct dvb_frontend *fe,
fe_status_t *status)
{
int ret;
- dprintk("\n");
*status = 0;
if (fe->ops.i2c_gate_ctrl)
@@ -663,9 +667,10 @@ static int mb86a20s_tune(struct dvb_frontend *fe,
unsigned int *delay,
fe_status_t *status)
{
+ struct mb86a20s_state *state = fe->demodulator_priv;
int rc = 0;
- dprintk("\n");
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
if (re_tune)
rc = mb86a20s_set_frontend(fe);
@@ -680,7 +685,7 @@ static void mb86a20s_release(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
- dprintk("\n");
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
kfree(state);
}
@@ -690,15 +695,16 @@ static struct dvb_frontend_ops mb86a20s_ops;
struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
struct i2c_adapter *i2c)
{
+ struct mb86a20s_state *state;
u8 rev;
/* allocate memory for the internal state */
- struct mb86a20s_state *state =
- kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL);
+ state = kzalloc(sizeof(struct mb86a20s_state), GFP_KERNEL);
- dprintk("\n");
+ dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
if (state == NULL) {
- rc("Unable to kzalloc\n");
+ dev_err(&state->i2c->dev,
+ "%s: unable to allocate memory for state\n", __func__);
goto error;
}
@@ -715,9 +721,11 @@ struct dvb_frontend *mb86a20s_attach(const struct mb86a20s_config *config,
rev = mb86a20s_readreg(state, 0);
if (rev == 0x13) {
- printk(KERN_INFO "Detected a Fujitsu mb86a20s frontend\n");
+ dev_info(&state->i2c->dev,
+ "Detected a Fujitsu mb86a20s frontend\n");
} else {
- printk(KERN_ERR "Frontend revision %d is unknown - aborting.\n",
+ dev_dbg(&state->i2c->dev,
+ "Frontend revision %d is unknown - aborting.\n",
rev);
goto error;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-26 03:19:42 +0300