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path: root/drivers/media/dvb/frontends/tda1004x.c
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Diffstat (limited to 'drivers/media/dvb/frontends/tda1004x.c')
-rw-r--r--drivers/media/dvb/frontends/tda1004x.c284
1 files changed, 160 insertions, 124 deletions
diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c
index 687ad9cf338..0beb370792a 100644
--- a/drivers/media/dvb/frontends/tda1004x.c
+++ b/drivers/media/dvb/frontends/tda1004x.c
@@ -35,9 +35,10 @@
#include "dvb_frontend.h"
#include "tda1004x.h"
-#define TDA1004X_DEMOD_TDA10045 0
-#define TDA1004X_DEMOD_TDA10046 1
-
+enum tda1004x_demod {
+ TDA1004X_DEMOD_TDA10045,
+ TDA1004X_DEMOD_TDA10046,
+};
struct tda1004x_state {
struct i2c_adapter* i2c;
@@ -46,8 +47,9 @@ struct tda1004x_state {
struct dvb_frontend frontend;
/* private demod data */
- u8 initialised:1;
- u8 demod_type;
+ u8 initialised;
+ enum tda1004x_demod demod_type;
+ u8 fw_version;
};
@@ -139,7 +141,7 @@ static int tda1004x_write_byteI(struct tda1004x_state *state, int reg, int data)
{
int ret;
u8 buf[] = { reg, data };
- struct i2c_msg msg = { .addr=0, .flags=0, .buf=buf, .len=2 };
+ struct i2c_msg msg = { .flags = 0, .buf = buf, .len = 2 };
dprintk("%s: reg=0x%x, data=0x%x\n", __FUNCTION__, reg, data);
@@ -160,8 +162,8 @@ static int tda1004x_read_byte(struct tda1004x_state *state, int reg)
int ret;
u8 b0[] = { reg };
u8 b1[] = { 0 };
- struct i2c_msg msg[] = {{ .addr=0, .flags=0, .buf=b0, .len=1},
- { .addr=0, .flags=I2C_M_RD, .buf=b1, .len = 1}};
+ struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 },
+ { .flags = I2C_M_RD, .buf = b1, .len = 1 }};
dprintk("%s: reg=0x%x\n", __FUNCTION__, reg);
@@ -294,7 +296,7 @@ static int tda1004x_do_upload(struct tda1004x_state *state,
u8 dspCodeCounterReg, u8 dspCodeInReg)
{
u8 buf[65];
- struct i2c_msg fw_msg = {.addr = 0,.flags = 0,.buf = buf,.len = 0 };
+ struct i2c_msg fw_msg = { .flags = 0, .buf = buf, .len = 0 };
int tx_size;
int pos = 0;
@@ -304,12 +306,10 @@ static int tda1004x_do_upload(struct tda1004x_state *state,
buf[0] = dspCodeInReg;
while (pos != len) {
-
// work out how much to send this time
tx_size = len - pos;
- if (tx_size > 0x10) {
+ if (tx_size > 0x10)
tx_size = 0x10;
- }
// send the chunk
memcpy(buf + 1, mem + pos, tx_size);
@@ -322,6 +322,7 @@ static int tda1004x_do_upload(struct tda1004x_state *state,
dprintk("%s: fw_pos=0x%x\n", __FUNCTION__, pos);
}
+
return 0;
}
@@ -335,9 +336,8 @@ static int tda1004x_check_upload_ok(struct tda1004x_state *state, u8 dspVersion)
data1 = tda1004x_read_byte(state, TDA1004X_DSP_DATA1);
data2 = tda1004x_read_byte(state, TDA1004X_DSP_DATA2);
- if (data1 != 0x67 || data2 != dspVersion) {
+ if ((data1 != 0x67) || (data2 != dspVersion))
return -EIO;
- }
return 0;
}
@@ -348,9 +348,9 @@ static int tda10045_fwupload(struct dvb_frontend* fe)
int ret;
const struct firmware *fw;
-
/* don't re-upload unless necessary */
- if (tda1004x_check_upload_ok(state, 0x2c) == 0) return 0;
+ if (tda1004x_check_upload_ok(state, 0x2c) == 0)
+ return 0;
/* request the firmware, this will block until someone uploads it */
printk("tda1004x: waiting for firmware upload (%s)...\n", TDA10045_DEFAULT_FIRMWARE);
@@ -381,6 +381,25 @@ static int tda10045_fwupload(struct dvb_frontend* fe)
return tda1004x_check_upload_ok(state, 0x2c);
}
+static int tda10046_get_fw_version(struct tda1004x_state *state,
+ const struct firmware *fw)
+{
+ const unsigned char pattern[] = { 0x67, 0x00, 0x50, 0x62, 0x5e, 0x18, 0x67 };
+ unsigned int i;
+
+ /* area guessed from firmware v20, v21 and v25 */
+ for (i = 0x660; i < 0x700; i++) {
+ if (!memcmp(&fw->data[i], pattern, sizeof(pattern))) {
+ state->fw_version = fw->data[i + sizeof(pattern)];
+ printk(KERN_INFO "tda1004x: using firmware v%02x\n",
+ state->fw_version);
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
static int tda10046_fwupload(struct dvb_frontend* fe)
{
struct tda1004x_state* state = fe->demodulator_priv;
@@ -394,7 +413,8 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
msleep(100);
/* don't re-upload unless necessary */
- if (tda1004x_check_upload_ok(state, 0x20) == 0) return 0;
+ if (tda1004x_check_upload_ok(state, state->fw_version) == 0)
+ return 0;
/* request the firmware, this will block until someone uploads it */
printk("tda1004x: waiting for firmware upload (%s)...\n", TDA10046_DEFAULT_FIRMWARE);
@@ -404,9 +424,20 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
return ret;
}
+ if (fw->size < 24478) { /* size of firmware v20, which is the smallest of v20, v21 and v25 */
+ printk("tda1004x: firmware file seems to be too small (%d bytes)\n", fw->size);
+ return -EINVAL;
+ }
+
+ ret = tda10046_get_fw_version(state, fw);
+ if (ret < 0) {
+ printk("tda1004x: unable to find firmware version\n");
+ return ret;
+ }
+
/* set parameters */
tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 10);
- tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 0);
+ tda1004x_write_byteI(state, TDA10046H_CONFPLL3, state->config->n_i2c);
tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 99);
tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd4);
tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x2c);
@@ -419,7 +450,7 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
/* wait for DSP to initialise */
timeout = jiffies + HZ;
- while(!(tda1004x_read_byte(state, TDA1004X_STATUS_CD) & 0x20)) {
+ while (!(tda1004x_read_byte(state, TDA1004X_STATUS_CD) & 0x20)) {
if (time_after(jiffies, timeout)) {
printk("tda1004x: DSP failed to initialised.\n");
return -EIO;
@@ -427,7 +458,7 @@ static int tda10046_fwupload(struct dvb_frontend* fe)
msleep(1);
}
- return tda1004x_check_upload_ok(state, 0x20);
+ return tda1004x_check_upload_ok(state, state->fw_version);
}
static int tda1004x_encode_fec(int fec)
@@ -483,7 +514,8 @@ static int tda10045_init(struct dvb_frontend* fe)
dprintk("%s\n", __FUNCTION__);
- if (state->initialised) return 0;
+ if (state->initialised)
+ return 0;
if (tda10045_fwupload(fe)) {
printk("tda1004x: firmware upload failed\n");
@@ -523,7 +555,8 @@ static int tda10046_init(struct dvb_frontend* fe)
struct tda1004x_state* state = fe->demodulator_priv;
dprintk("%s\n", __FUNCTION__);
- if (state->initialised) return 0;
+ if (state->initialised)
+ return 0;
if (tda10046_fwupload(fe)) {
printk("tda1004x: firmware upload failed\n");
@@ -545,7 +578,7 @@ static int tda10046_init(struct dvb_frontend* fe)
tda1004x_write_mask(state, TDA1004X_AUTO, 8, 0); // select HP stream
tda1004x_write_mask(state, TDA1004X_CONFC1, 0x80, 0); // disable pulse killer
tda1004x_write_byteI(state, TDA10046H_CONFPLL2, 10); // PLL M = 10
- tda1004x_write_byteI(state, TDA10046H_CONFPLL3, 0); // PLL P = N = 0
+ tda1004x_write_byteI(state, TDA10046H_CONFPLL3, state->config->n_i2c); // PLL P = N = 0
tda1004x_write_byteI(state, TDA10046H_FREQ_OFFSET, 99); // FREQOFFS = 99
tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_MSB, 0xd4); // } PHY2 = -11221
tda1004x_write_byteI(state, TDA10046H_FREQ_PHY2_LSB, 0x2c); // }
@@ -621,12 +654,14 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
// set HP FEC
tmp = tda1004x_encode_fec(fe_params->u.ofdm.code_rate_HP);
- if (tmp < 0) return tmp;
+ if (tmp < 0)
+ return tmp;
tda1004x_write_mask(state, TDA1004X_IN_CONF2, 7, tmp);
// set LP FEC
tmp = tda1004x_encode_fec(fe_params->u.ofdm.code_rate_LP);
- if (tmp < 0) return tmp;
+ if (tmp < 0)
+ return tmp;
tda1004x_write_mask(state, TDA1004X_IN_CONF2, 0x38, tmp << 3);
// set constellation
@@ -671,7 +706,7 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
}
// set bandwidth
- switch(state->demod_type) {
+ switch (state->demod_type) {
case TDA1004X_DEMOD_TDA10045:
tda10045h_set_bandwidth(state, fe_params->u.ofdm.bandwidth);
break;
@@ -683,7 +718,8 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
// set inversion
inversion = fe_params->inversion;
- if (state->config->invert) inversion = inversion ? INVERSION_OFF : INVERSION_ON;
+ if (state->config->invert)
+ inversion = inversion ? INVERSION_OFF : INVERSION_ON;
switch (inversion) {
case INVERSION_OFF:
tda1004x_write_mask(state, TDA1004X_CONFC1, 0x20, 0);
@@ -750,19 +786,19 @@ static int tda1004x_set_fe(struct dvb_frontend* fe,
}
// start the lock
- switch(state->demod_type) {
+ switch (state->demod_type) {
case TDA1004X_DEMOD_TDA10045:
tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 8);
tda1004x_write_mask(state, TDA1004X_CONFC4, 8, 0);
- msleep(10);
break;
case TDA1004X_DEMOD_TDA10046:
tda1004x_write_mask(state, TDA1004X_AUTO, 0x40, 0x40);
- msleep(10);
break;
}
+ msleep(10);
+
return 0;
}
@@ -773,13 +809,13 @@ static int tda1004x_get_fe(struct dvb_frontend* fe, struct dvb_frontend_paramete
// inversion status
fe_params->inversion = INVERSION_OFF;
- if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20) {
+ if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)
fe_params->inversion = INVERSION_ON;
- }
- if (state->config->invert) fe_params->inversion = fe_params->inversion ? INVERSION_OFF : INVERSION_ON;
+ if (state->config->invert)
+ fe_params->inversion = fe_params->inversion ? INVERSION_OFF : INVERSION_ON;
// bandwidth
- switch(state->demod_type) {
+ switch (state->demod_type) {
case TDA1004X_DEMOD_TDA10045:
switch (tda1004x_read_byte(state, TDA10045H_WREF_LSB)) {
case 0x14:
@@ -830,9 +866,8 @@ static int tda1004x_get_fe(struct dvb_frontend* fe, struct dvb_frontend_paramete
// transmission mode
fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
- if (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x10) {
+ if (tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x10)
fe_params->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
- }
// guard interval
switch ((tda1004x_read_byte(state, TDA1004X_OUT_CONF1) & 0x0c) >> 2) {
@@ -880,30 +915,33 @@ static int tda1004x_read_status(struct dvb_frontend* fe, fe_status_t * fe_status
// read status
status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
- if (status == -1) {
+ if (status == -1)
return -EIO;
- }
// decode
*fe_status = 0;
- if (status & 4) *fe_status |= FE_HAS_SIGNAL;
- if (status & 2) *fe_status |= FE_HAS_CARRIER;
- if (status & 8) *fe_status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+ if (status & 4)
+ *fe_status |= FE_HAS_SIGNAL;
+ if (status & 2)
+ *fe_status |= FE_HAS_CARRIER;
+ if (status & 8)
+ *fe_status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
// if we don't already have VITERBI (i.e. not LOCKED), see if the viterbi
// is getting anything valid
if (!(*fe_status & FE_HAS_VITERBI)) {
// read the CBER
cber = tda1004x_read_byte(state, TDA1004X_CBER_LSB);
- if (cber == -1) return -EIO;
+ if (cber == -1)
+ return -EIO;
status = tda1004x_read_byte(state, TDA1004X_CBER_MSB);
- if (status == -1) return -EIO;
+ if (status == -1)
+ return -EIO;
cber |= (status << 8);
tda1004x_read_byte(state, TDA1004X_CBER_RESET);
- if (cber != 65535) {
+ if (cber != 65535)
*fe_status |= FE_HAS_VITERBI;
- }
}
// if we DO have some valid VITERBI output, but don't already have SYNC
@@ -911,20 +949,22 @@ static int tda1004x_read_status(struct dvb_frontend* fe, fe_status_t * fe_status
if ((*fe_status & FE_HAS_VITERBI) && (!(*fe_status & FE_HAS_SYNC))) {
// read the VBER
vber = tda1004x_read_byte(state, TDA1004X_VBER_LSB);
- if (vber == -1) return -EIO;
+ if (vber == -1)
+ return -EIO;
status = tda1004x_read_byte(state, TDA1004X_VBER_MID);
- if (status == -1) return -EIO;
+ if (status == -1)
+ return -EIO;
vber |= (status << 8);
status = tda1004x_read_byte(state, TDA1004X_VBER_MSB);
- if (status == -1) return -EIO;
+ if (status == -1)
+ return -EIO;
vber |= ((status << 16) & 0x0f);
tda1004x_read_byte(state, TDA1004X_CVBER_LUT);
// if RS has passed some valid TS packets, then we must be
// getting some SYNC bytes
- if (vber < 16632) {
+ if (vber < 16632)
*fe_status |= FE_HAS_SYNC;
- }
}
// success
@@ -941,7 +981,7 @@ static int tda1004x_read_signal_strength(struct dvb_frontend* fe, u16 * signal)
dprintk("%s\n", __FUNCTION__);
// determine the register to use
- switch(state->demod_type) {
+ switch (state->demod_type) {
case TDA1004X_DEMOD_TDA10045:
reg = TDA10045H_S_AGC;
break;
@@ -972,9 +1012,8 @@ static int tda1004x_read_snr(struct dvb_frontend* fe, u16 * snr)
tmp = tda1004x_read_byte(state, TDA1004X_SNR);
if (tmp < 0)
return -EIO;
- if (tmp) {
+ if (tmp)
tmp = 255 - tmp;
- }
*snr = ((tmp << 8) | tmp);
dprintk("%s: snr=0x%x\n", __FUNCTION__, *snr);
@@ -1009,11 +1048,11 @@ static int tda1004x_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
break;
}
- if (tmp != 0x7f) {
+ if (tmp != 0x7f)
*ucblocks = tmp;
- } else {
+ else
*ucblocks = 0xffffffff;
- }
+
dprintk("%s: ucblocks=0x%x\n", __FUNCTION__, *ucblocks);
return 0;
}
@@ -1027,10 +1066,12 @@ static int tda1004x_read_ber(struct dvb_frontend* fe, u32* ber)
// read it in
tmp = tda1004x_read_byte(state, TDA1004X_CBER_LSB);
- if (tmp < 0) return -EIO;
+ if (tmp < 0)
+ return -EIO;
*ber = tmp << 1;
tmp = tda1004x_read_byte(state, TDA1004X_CBER_MSB);
- if (tmp < 0) return -EIO;
+ if (tmp < 0)
+ return -EIO;
*ber |= (tmp << 9);
tda1004x_read_byte(state, TDA1004X_CBER_RESET);
@@ -1042,7 +1083,7 @@ static int tda1004x_sleep(struct dvb_frontend* fe)
{
struct tda1004x_state* state = fe->demodulator_priv;
- switch(state->demod_type) {
+ switch (state->demod_type) {
case TDA1004X_DEMOD_TDA10045:
tda1004x_write_mask(state, TDA1004X_CONFADC1, 0x10, 0x10);
break;
@@ -1066,74 +1107,11 @@ static int tda1004x_get_tune_settings(struct dvb_frontend* fe, struct dvb_fronte
static void tda1004x_release(struct dvb_frontend* fe)
{
- struct tda1004x_state* state = (struct tda1004x_state*) fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops tda10045_ops;
-
-struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
- struct i2c_adapter* i2c)
-{
- struct tda1004x_state* state = NULL;
-
- /* allocate memory for the internal state */
- state = (struct tda1004x_state*) kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
- if (state == NULL) goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- memcpy(&state->ops, &tda10045_ops, sizeof(struct dvb_frontend_ops));
- state->initialised = 0;
- state->demod_type = TDA1004X_DEMOD_TDA10045;
-
- /* check if the demod is there */
- if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x25) goto error;
-
- /* create dvb_frontend */
- state->frontend.ops = &state->ops;
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
+ struct tda1004x_state *state = fe->demodulator_priv;
kfree(state);
- return NULL;
-}
-
-static struct dvb_frontend_ops tda10046_ops;
-
-struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
- struct i2c_adapter* i2c)
-{
- struct tda1004x_state* state = NULL;
-
- /* allocate memory for the internal state */
- state = (struct tda1004x_state*) kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
- if (state == NULL) goto error;
-
- /* setup the state */
- state->config = config;
- state->i2c = i2c;
- memcpy(&state->ops, &tda10046_ops, sizeof(struct dvb_frontend_ops));
- state->initialised = 0;
- state->demod_type = TDA1004X_DEMOD_TDA10046;
-
- /* check if the demod is there */
- if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x46) goto error;
-
- /* create dvb_frontend */
- state->frontend.ops = &state->ops;
- state->frontend.demodulator_priv = state;
- return &state->frontend;
-
-error:
- if (state) kfree(state);
- return NULL;
}
static struct dvb_frontend_ops tda10045_ops = {
-
.info = {
.name = "Philips TDA10045H DVB-T",
.type = FE_OFDM,
@@ -1163,8 +1141,36 @@ static struct dvb_frontend_ops tda10045_ops = {
.read_ucblocks = tda1004x_read_ucblocks,
};
-static struct dvb_frontend_ops tda10046_ops = {
+struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
+ struct i2c_adapter* i2c)
+{
+ struct tda1004x_state *state;
+
+ /* allocate memory for the internal state */
+ state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ /* setup the state */
+ state->config = config;
+ state->i2c = i2c;
+ memcpy(&state->ops, &tda10045_ops, sizeof(struct dvb_frontend_ops));
+ state->initialised = 0;
+ state->demod_type = TDA1004X_DEMOD_TDA10045;
+
+ /* check if the demod is there */
+ if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x25) {
+ kfree(state);
+ return NULL;
+ }
+ /* create dvb_frontend */
+ state->frontend.ops = &state->ops;
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+}
+
+static struct dvb_frontend_ops tda10046_ops = {
.info = {
.name = "Philips TDA10046H DVB-T",
.type = FE_OFDM,
@@ -1194,6 +1200,36 @@ static struct dvb_frontend_ops tda10046_ops = {
.read_ucblocks = tda1004x_read_ucblocks,
};
+struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
+ struct i2c_adapter* i2c)
+{
+ struct tda1004x_state *state;
+
+ /* allocate memory for the internal state */
+ state = kmalloc(sizeof(struct tda1004x_state), GFP_KERNEL);
+ if (!state)
+ return NULL;
+
+ /* setup the state */
+ state->config = config;
+ state->i2c = i2c;
+ memcpy(&state->ops, &tda10046_ops, sizeof(struct dvb_frontend_ops));
+ state->initialised = 0;
+ state->demod_type = TDA1004X_DEMOD_TDA10046;
+ state->fw_version = 0x20; /* dummy default value */
+
+ /* check if the demod is there */
+ if (tda1004x_read_byte(state, TDA1004X_CHIPID) != 0x46) {
+ kfree(state);
+ return NULL;
+ }
+
+ /* create dvb_frontend */
+ state->frontend.ops = &state->ops;
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+}
+
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 08:12:06 +0000