]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/media/video/tuner-xc2028.c
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
[linux-2.6-omap-h63xx.git] / drivers / media / video / tuner-xc2028.c
index 42fb141fc386d5af11a9d546c77cfa72093f9291..50cf876f020f40659929821f5c560fb58b5b8cbf 100644 (file)
@@ -50,6 +50,7 @@ static DEFINE_MUTEX(xc2028_list_mutex);
 struct firmware_description {
        unsigned int  type;
        v4l2_std_id   id;
+       __u16         int_freq;
        unsigned char *ptr;
        unsigned int  size;
 };
@@ -58,6 +59,7 @@ struct firmware_properties {
        unsigned int    type;
        v4l2_std_id     id;
        v4l2_std_id     std_req;
+       __u16           int_freq;
        unsigned int    scode_table;
        int             scode_nr;
 };
@@ -142,7 +144,8 @@ static unsigned int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val)
        return 0;
 }
 
-void dump_firm_type(unsigned int type)
+#define dump_firm_type(t)      dump_firm_type_and_int_freq(t, 0)
+void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
 {
         if (type & BASE)
                printk("BASE ");
@@ -204,6 +207,8 @@ void dump_firm_type(unsigned int type)
                printk("INPUT2 ");
         if (type & SCODE)
                printk("SCODE ");
+        if (type & HAS_IF)
+               printk("HAS_IF_%d ", int_freq);
 }
 
 static  v4l2_std_id parse_audio_std_option(void)
@@ -301,6 +306,7 @@ static int load_all_firmwares(struct dvb_frontend *fe)
        while (p < endp) {
                __u32 type, size;
                v4l2_std_id id;
+               __u16 int_freq = 0;
 
                n++;
                if (n >= n_array) {
@@ -321,6 +327,11 @@ static int load_all_firmwares(struct dvb_frontend *fe)
                id = le64_to_cpu(*(v4l2_std_id *) p);
                p += sizeof(id);
 
+               if (type & HAS_IF) {
+                       int_freq = le16_to_cpu(*(__u16 *) p);
+                       p += sizeof(int_freq);
+               }
+
                size = le32_to_cpu(*(__u32 *) p);
                p += sizeof(size);
 
@@ -342,15 +353,16 @@ static int load_all_firmwares(struct dvb_frontend *fe)
                }
                tuner_dbg("Reading firmware type ");
                if (debug) {
-                       dump_firm_type(type);
+                       dump_firm_type_and_int_freq(type, int_freq);
                        printk("(%x), id %llx, size=%d.\n",
-                                  type, (unsigned long long)id, size);
+                              type, (unsigned long long)id, size);
                }
 
                memcpy(priv->firm[n].ptr, p, size);
                priv->firm[n].type = type;
                priv->firm[n].id   = id;
                priv->firm[n].size = size;
+               priv->firm[n].int_freq = int_freq;
 
                p += size;
        }
@@ -383,6 +395,7 @@ static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
 {
        struct xc2028_data *priv = fe->tuner_priv;
        int                 i, best_i = -1, best_nr_matches = 0;
+       unsigned int        ign_firm_type_mask = 0;
 
        tuner_dbg("%s called, want type=", __FUNCTION__);
        if (debug) {
@@ -400,16 +413,18 @@ static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
 
        if (type & BASE)
                type &= BASE_TYPES;
-       else if (type & SCODE)
+       else if (type & SCODE) {
                type &= SCODE_TYPES;
-       else if (type & DTV_TYPES)
+               ign_firm_type_mask = HAS_IF;
+       } else if (type & DTV_TYPES)
                type &= DTV_TYPES;
        else if (type & STD_SPECIFIC_TYPES)
                type &= STD_SPECIFIC_TYPES;
 
        /* Seek for exact match */
        for (i = 0; i < priv->firm_size; i++) {
-               if ((type == priv->firm[i].type) && (*id == priv->firm[i].id))
+               if ((type == (priv->firm[i].type & ~ign_firm_type_mask)) &&
+                   (*id == priv->firm[i].id))
                        goto found;
        }
 
@@ -418,7 +433,7 @@ static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
                v4l2_std_id match_mask;
                int nr_matches;
 
-               if (type != priv->firm[i].type)
+               if (type != (priv->firm[i].type & ~ign_firm_type_mask))
                        continue;
 
                match_mask = *id & priv->firm[i].id;
@@ -565,7 +580,7 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type,
 }
 
 static int load_scode(struct dvb_frontend *fe, unsigned int type,
-                        v4l2_std_id *id, int scode)
+                        v4l2_std_id *id, __u16 int_freq, int scode)
 {
        struct xc2028_data *priv = fe->tuner_priv;
        int                pos, rc;
@@ -573,20 +588,38 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type,
 
        tuner_dbg("%s called\n", __FUNCTION__);
 
-       pos = seek_firmware(fe, type, id);
-       if (pos < 0)
-               return pos;
+       if (!int_freq) {
+               pos = seek_firmware(fe, type, id);
+               if (pos < 0)
+                       return pos;
+       } else {
+               for (pos = 0; pos < priv->firm_size; pos++) {
+                       if ((priv->firm[pos].int_freq == int_freq) &&
+                           (priv->firm[pos].type & HAS_IF))
+                               break;
+               }
+               if (pos == priv->firm_size)
+                       return -ENOENT;
+       }
 
        p = priv->firm[pos].ptr;
 
-       /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
-        * has a 2-byte size header in the firmware format. */
-       if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
-           le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
-               return -EINVAL;
+       if (priv->firm[pos].type & HAS_IF) {
+               if (priv->firm[pos].size != 12 * 16 || scode >= 16)
+                       return -EINVAL;
+               p += 12 * scode;
+       } else {
+               /* 16 SCODE entries per file; each SCODE entry is 12 bytes and
+                * has a 2-byte size header in the firmware format. */
+               if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
+                   le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
+                       return -EINVAL;
+               p += 14 * scode + 2;
+       }
 
        tuner_info("Loading SCODE for type=");
-       dump_firm_type(priv->firm[pos].type);
+       dump_firm_type_and_int_freq(priv->firm[pos].type,
+                                   priv->firm[pos].int_freq);
        printk("(%x), id %016llx.\n", priv->firm[pos].type,
               (unsigned long long)*id);
 
@@ -597,7 +630,7 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type,
        if (rc < 0)
                return -EIO;
 
-       rc = i2c_send(priv, p + 14 * scode + 2, 12);
+       rc = i2c_send(priv, p, 12);
        if (rc < 0)
                return -EIO;
 
@@ -609,7 +642,7 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type,
 }
 
 static int check_firmware(struct dvb_frontend *fe, unsigned int type,
-                         v4l2_std_id std)
+                         v4l2_std_id std, __u16 int_freq)
 {
        struct xc2028_data         *priv = fe->tuner_priv;
        struct firmware_properties new_fw;
@@ -630,7 +663,7 @@ static int check_firmware(struct dvb_frontend *fe, unsigned int type,
                        return rc;
        }
 
-       if (priv->ctrl.mts)
+       if (priv->ctrl.mts && !(type & FM))
                type |= MTS;
 
 retry:
@@ -639,15 +672,20 @@ retry:
        new_fw.std_req = std;
        new_fw.scode_table = SCODE | priv->ctrl.scode_table;
        new_fw.scode_nr = 0;
+       new_fw.int_freq = int_freq;
 
        tuner_dbg("checking firmware, user requested type=");
        if (debug) {
                dump_firm_type(new_fw.type);
-               printk("(%x), id %016llx, scode_tbl ", new_fw.type,
+               printk("(%x), id %016llx, ", new_fw.type,
                       (unsigned long long)new_fw.std_req);
-               dump_firm_type(priv->ctrl.scode_table);
-               printk("(%x), scode_nr %d\n", priv->ctrl.scode_table,
-                      new_fw.scode_nr);
+               if (!int_freq) {
+                       printk("scode_tbl ");
+                       dump_firm_type(priv->ctrl.scode_table);
+                       printk("(%x), ", priv->ctrl.scode_table);
+               } else
+                       printk("int_freq %d, ", new_fw.int_freq);
+               printk("scode_nr %d\n", new_fw.scode_nr);
        }
 
        /* No need to reload base firmware if it matches */
@@ -716,11 +754,14 @@ skip_std_specific:
                goto check_device;
        }
 
+       if (new_fw.type & FM)
+               goto check_device;
+
        /* Load SCODE firmware, if exists */
        tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr);
 
-       rc = load_scode(fe, new_fw.type | new_fw.scode_table,
-                       &new_fw.id, new_fw.scode_nr);
+       rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
+                       new_fw.int_freq, new_fw.scode_nr);
 
 check_device:
        if (xc2028_get_reg(priv, 0x0004, &version) < 0 ||
@@ -810,9 +851,10 @@ ret:
 #define DIV 15625
 
 static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
-                              enum tuner_mode new_mode,
-                              unsigned int type,
-                              v4l2_std_id std)
+                           enum tuner_mode new_mode,
+                           unsigned int type,
+                           v4l2_std_id std,
+                           u16 int_freq)
 {
        struct xc2028_data *priv = fe->tuner_priv;
        int                rc = -EINVAL;
@@ -825,7 +867,7 @@ static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
 
        tuner_dbg("should set frequency %d kHz\n", freq / 1000);
 
-       if (check_firmware(fe, type, std) < 0)
+       if (check_firmware(fe, type, std, int_freq) < 0)
                goto ret;
 
        /* On some cases xc2028 can disable video output, if
@@ -837,9 +879,20 @@ static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */,
         */
        if (new_mode == T_ANALOG_TV) {
                rc = send_seq(priv, {0x00, 0x00});
+       } else if (priv->cur_fw.type & ATSC) {
+               offset = 1750000;
        } else {
                offset = 2750000;
-               if (priv->cur_fw.type & DTV7)
+               /*
+                * We must adjust the offset by 500kHz in two cases in order
+                * to correctly center the IF output:
+                * 1) When the ZARLINK456 or DIBCOM52 tables were explicitly
+                *    selected and a 7MHz channel is tuned;
+                * 2) When tuning a VHF channel with DTV78 firmware.
+                */
+               if (((priv->cur_fw.type & DTV7) &&
+                    (priv->cur_fw.scode_table & (ZARLINK456 | DIBCOM52))) ||
+                   ((priv->cur_fw.type & DTV78) && freq < 470000000))
                        offset -= 500000;
        }
 
@@ -896,7 +949,7 @@ static int xc2028_set_analog_freq(struct dvb_frontend *fe,
                if (priv->ctrl.input1)
                        type |= INPUT1;
                return generic_set_freq(fe, (625l * p->frequency) / 10,
-                               T_ANALOG_TV, type, 0);
+                               T_ANALOG_TV, type, 0, 0);
        }
 
        /* if std is not defined, choose one */
@@ -911,7 +964,7 @@ static int xc2028_set_analog_freq(struct dvb_frontend *fe,
        p->std |= parse_audio_std_option();
 
        return generic_set_freq(fe, 62500l * p->frequency,
-                               T_ANALOG_TV, type, p->std);
+                               T_ANALOG_TV, type, p->std, 0);
 }
 
 static int xc2028_set_params(struct dvb_frontend *fe,
@@ -920,6 +973,7 @@ static int xc2028_set_params(struct dvb_frontend *fe,
        struct xc2028_data *priv = fe->tuner_priv;
        unsigned int       type=0;
        fe_bandwidth_t     bw = BANDWIDTH_8_MHZ;
+       u16                demod = 0;
 
        tuner_dbg("%s called\n", __FUNCTION__);
 
@@ -929,44 +983,61 @@ static int xc2028_set_params(struct dvb_frontend *fe,
                type |= D2620;
 
        switch(fe->ops.info.type) {
-       case FE_QPSK:
-               break;
        case FE_OFDM:
                bw = p->u.ofdm.bandwidth;
                break;
        case FE_QAM:
+               tuner_info("WARN: There are some reports that "
+                          "QAM 6 MHz doesn't work.\n"
+                          "If this works for you, please report by "
+                          "e-mail to: v4l-dvb-maintainer@linuxtv.org\n");
                bw = BANDWIDTH_6_MHZ;
                type |= QAM;
                break;
        case FE_ATSC:
                bw = BANDWIDTH_6_MHZ;
+               /* The only ATSC firmware (at least on v2.7) is D2633,
+                  so overrides ctrl->d2633 */
                type |= ATSC| D2633;
+               type &= ~D2620;
                break;
+       /* DVB-S is not supported */
+       default:
+               return -EINVAL;
        }
 
-       bw = p->u.ofdm.bandwidth;
-
-       /* FIXME:
-         There are two Scodes that will never be selected:
-               DTV78 ZARLINK456, DTV78 DIBCOM52
-         When it should opt for DTV78 instead of DTV7 or DTV8?
-       */
        switch (bw) {
        case BANDWIDTH_8_MHZ:
-               type |= DTV8 | F8MHZ;
+               if (p->frequency < 470000000)
+                       priv->ctrl.vhfbw7 = 0;
+               else
+                       priv->ctrl.uhfbw8 = 1;
+               type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV8;
+               type |= F8MHZ;
                break;
        case BANDWIDTH_7_MHZ:
-               type |= DTV7 | F8MHZ;
+               if (p->frequency < 470000000)
+                       priv->ctrl.vhfbw7 = 1;
+               else
+                       priv->ctrl.uhfbw8 = 0;
+               type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV7;
+               type |= F8MHZ;
                break;
        case BANDWIDTH_6_MHZ:
-               type |= DTV6 ;
+               type |= DTV6;
+               priv->ctrl.vhfbw7 = 0;
+               priv->ctrl.uhfbw8 = 0;
                break;
        default:
                tuner_err("error: bandwidth not supported.\n");
        };
 
+       /* All S-code tables need a 200kHz shift */
+       if (priv->ctrl.demod)
+               demod = priv->ctrl.demod + 200;
+
        return generic_set_freq(fe, p->frequency,
-                               T_DIGITAL_TV, type, 0);
+                               T_DIGITAL_TV, type, 0, demod);
 }
 
 static int xc2028_sleep(struct dvb_frontend *fe)
@@ -1075,7 +1146,8 @@ static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
 
 };
 
-void *xc2028_attach(struct dvb_frontend *fe, struct xc2028_config *cfg)
+struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe,
+                                  struct xc2028_config *cfg)
 {
        struct xc2028_data *priv;
        void               *video_dev;