1 files changed, 160 insertions, 124 deletions

diff --git a/drivers/media/dvb/frontends/tda1004x.c b/drivers/media/dvb/frontends/tda1004x.c
index 687ad9cf3384..0beb370792ae 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).");