summaryrefslogtreecommitdiffstats
path: root/drivers/media/tuners/qm1d1c0042.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/tuners/qm1d1c0042.c')
-rw-r--r--drivers/media/tuners/qm1d1c0042.c38
1 files changed, 27 insertions, 11 deletions
diff --git a/drivers/media/tuners/qm1d1c0042.c b/drivers/media/tuners/qm1d1c0042.c
index 18bc745ed108..9af2a155cfca 100644
--- a/drivers/media/tuners/qm1d1c0042.c
+++ b/drivers/media/tuners/qm1d1c0042.c
@@ -32,14 +32,24 @@
#include "qm1d1c0042.h"
#define QM1D1C0042_NUM_REGS 0x20
-
-static const u8 reg_initval[QM1D1C0042_NUM_REGS] = {
- 0x48, 0x1c, 0xa0, 0x10, 0xbc, 0xc5, 0x20, 0x33,
- 0x06, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
- 0x00, 0xff, 0xf3, 0x00, 0x2a, 0x64, 0xa6, 0x86,
- 0x8c, 0xcf, 0xb8, 0xf1, 0xa8, 0xf2, 0x89, 0x00
+#define QM1D1C0042_NUM_REG_ROWS 2
+
+static const u8
+reg_initval[QM1D1C0042_NUM_REG_ROWS][QM1D1C0042_NUM_REGS] = { {
+ 0x48, 0x1c, 0xa0, 0x10, 0xbc, 0xc5, 0x20, 0x33,
+ 0x06, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
+ 0x00, 0xff, 0xf3, 0x00, 0x2a, 0x64, 0xa6, 0x86,
+ 0x8c, 0xcf, 0xb8, 0xf1, 0xa8, 0xf2, 0x89, 0x00
+ }, {
+ 0x68, 0x1c, 0xc0, 0x10, 0xbc, 0xc1, 0x11, 0x33,
+ 0x03, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00,
+ 0x00, 0xff, 0xf3, 0x00, 0x3f, 0x25, 0x5c, 0xd6,
+ 0x55, 0xcf, 0x95, 0xf6, 0x36, 0xf2, 0x09, 0x00
+ }
};
+static int reg_index;
+
static const struct qm1d1c0042_config default_cfg = {
.xtal_freq = 16000,
.lpf = 1,
@@ -320,7 +330,6 @@ static int qm1d1c0042_init(struct dvb_frontend *fe)
int i, ret;
state = fe->tuner_priv;
- memcpy(state->regs, reg_initval, sizeof(reg_initval));
reg_write(state, 0x01, 0x0c);
reg_write(state, 0x01, 0x0c);
@@ -330,15 +339,22 @@ static int qm1d1c0042_init(struct dvb_frontend *fe)
goto failed;
usleep_range(2000, 3000);
- val = state->regs[0x01] | 0x10;
- ret = reg_write(state, 0x01, val); /* soft reset off */
+ ret = reg_write(state, 0x01, 0x1c); /* soft reset off */
if (ret < 0)
goto failed;
- /* check ID */
+ /* check ID and choose initial registers corresponding ID */
ret = reg_read(state, 0x00, &val);
- if (ret < 0 || val != 0x48)
+ if (ret < 0)
+ goto failed;
+ for (reg_index = 0; reg_index < QM1D1C0042_NUM_REG_ROWS;
+ reg_index++) {
+ if (val == reg_initval[reg_index][0x00])
+ break;
+ }
+ if (reg_index >= QM1D1C0042_NUM_REG_ROWS)
goto failed;
+ memcpy(state->regs, reg_initval[reg_index], QM1D1C0042_NUM_REGS);
usleep_range(2000, 3000);
state->regs[0x0c] |= 0x40;