1 files changed, 134 insertions, 104 deletions

diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 387cb2122d4f..f6715007d409 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/vmalloc.h>
 #include <linux/firmware.h>
+#include <net/checksum.h>
 
 #include <asm/io.h>
 
@@ -45,7 +46,7 @@ static void boot_msp34xx(struct bttv *btv, int pin);
 static void boot_bt832(struct bttv *btv);
 static void hauppauge_eeprom(struct bttv *btv);
 static void avermedia_eeprom(struct bttv *btv);
-static void osprey_eeprom(struct bttv *btv);
+static void osprey_eeprom(struct bttv *btv, const u8 ee[256]);
 static void modtec_eeprom(struct bttv *btv);
 static void init_PXC200(struct bttv *btv);
 static void init_RTV24(struct bttv *btv);
@@ -2843,13 +2844,28 @@ struct tvcard bttv_tvcards[] = {
                 .has_remote     = 1,
         },
                 /* ---- card 0x8c ---------------------------------- */
+        /* Has four Bt878 chips behind a PCI bridge, each chip has:
+             one external BNC composite input (mux 2)
+             three internal composite inputs (unknown muxes)
+             an 18-bit stereo A/D (CS5331A), which has:
+               one external stereo unblanced (RCA) audio connection
+               one (or 3?) internal stereo balanced (XLR) audio connection
+               input is selected via gpio to a 14052B mux
+                 (mask=0x300, unbal=0x000, bal=0x100, ??=0x200,0x300)
+               gain is controlled via an X9221A chip on the I2C bus @0x28
+               sample rate is controlled via gpio to an MK1413S
+                 (mask=0x3, 32kHz=0x0, 44.1kHz=0x1, 48kHz=0x2, ??=0x3)
+             There is neither a tuner nor an svideo input. */
         [BTTV_BOARD_OSPREY440]  = {
                 .name           = "Osprey 440",
-                .video_inputs   = 1,
-                .audio_inputs   = 1,
+                .video_inputs   = 4,
+                .audio_inputs   = 2, /* this is meaningless */
                 .tuner          = UNSET,
-                .svhs           = 1,
-                .muxsel         = { 2 },
+                .svhs           = UNSET,
+                .muxsel         = { 2, 3, 0, 1 }, /* 3,0,1 are guesses */
+                .gpiomask       = 0x303,
+                .gpiomute       = 0x000, /* int + 32kHz */
+                .gpiomux        = { 0, 0, 0x000, 0x100},
                 .pll            = PLL_28,
                 .tuner_type     = UNSET,
                 .tuner_addr     = ADDR_UNSET,
@@ -3453,11 +3469,12 @@ void __devinit bttv_init_card2(struct bttv *btv)
         case BTTV_BOARD_OSPREY2xx:
         case BTTV_BOARD_OSPREY2x0_SVID:
         case BTTV_BOARD_OSPREY2x0:
+        case BTTV_BOARD_OSPREY440:
         case BTTV_BOARD_OSPREY500:
         case BTTV_BOARD_OSPREY540:
         case BTTV_BOARD_OSPREY2000:
                 bttv_readee(btv,eeprom_data,0xa0);
-                osprey_eeprom(btv);
+                osprey_eeprom(btv, eeprom_data);
                 break;
         case BTTV_BOARD_IDS_EAGLE:
                 init_ids_eagle(btv);
@@ -3748,106 +3765,119 @@ static int __devinit pvr_boot(struct bttv *btv)
 /* ----------------------------------------------------------------------- */
 /* some osprey specific stuff                                              */
 
-static void __devinit osprey_eeprom(struct bttv *btv)
+static void __devinit osprey_eeprom(struct bttv *btv, const u8 ee[256])
 {
-       int i = 0;
-       unsigned char *ee = eeprom_data;
-       unsigned long serial = 0;
-
-       if (btv->c.type == 0) {
-               /* this might be an antique... check for MMAC label in eeprom */
-               if ((ee[0]=='M') && (ee[1]=='M') && (ee[2]=='A') && (ee[3]=='C')) {
-                       unsigned char checksum = 0;
-                       for (i = 0; i < 21; i++)
-                               checksum += ee[i];
-                       if (checksum != ee[21])
-                               return;
-                       btv->c.type = BTTV_BOARD_OSPREY1x0_848;
-                       for (i = 12; i < 21; i++)
-                               serial *= 10, serial += ee[i] - '0';
-               }
+        int i;
+        u32 serial = 0;
+        int cardid = -1;
+
+        /* This code will nevery actually get called in this case.... */
+        if (btv->c.type == BTTV_BOARD_UNKNOWN) {
+                /* this might be an antique... check for MMAC label in eeprom */
+                if (!strncmp(ee, "MMAC", 4)) {
+                        u8 checksum = 0;
+                        for (i = 0; i < 21; i++)
+                                checksum += ee[i];
+                        if (checksum != ee[21])
+                                return;
+                        cardid = BTTV_BOARD_OSPREY1x0_848;
+                        for (i = 12; i < 21; i++)
+                                serial *= 10, serial += ee[i] - '0';
+                }
        } else {
-               unsigned short type;
-               int offset = 4*16;
-
-               for (; offset < 8*16; offset += 16) {
-                       unsigned short checksum = 0;
-                       /* verify the checksum */
-                       for (i = 0; i < 14; i++)
-                                checksum += ee[i+offset];
-                        checksum = ~checksum;  /* no idea why */
-                        if ((((checksum>>8)&0x0FF) == ee[offset+14]) &&
-                                   ((checksum & 0x0FF) == ee[offset+15])) {
-                               break;
-                       }
-               }
-
-               if (offset >= 8*16)
-                       return;
-
-               /* found a valid descriptor */
-               type = (ee[offset+4]<<8) | (ee[offset+5]);
-
-               switch(type) {
-               /* 848 based */
-               case 0x0004:
-                       btv->c.type = BTTV_BOARD_OSPREY1x0_848;
-                       break;
-               case 0x0005:
-                       btv->c.type = BTTV_BOARD_OSPREY101_848;
-                       break;
-
-               /* 878 based */
-               case 0x0012:
-               case 0x0013:
-                       btv->c.type = BTTV_BOARD_OSPREY1x0;
-                       break;
-               case 0x0014:
-               case 0x0015:
-                       btv->c.type = BTTV_BOARD_OSPREY1x1;
-                       break;
-               case 0x0016:
-               case 0x0017:
-               case 0x0020:
-                       btv->c.type = BTTV_BOARD_OSPREY1x1_SVID;
-                       break;
-               case 0x0018:
-               case 0x0019:
-               case 0x001E:
-               case 0x001F:
-                       btv->c.type = BTTV_BOARD_OSPREY2xx;
-                       break;
-               case 0x001A:
-               case 0x001B:
-                       btv->c.type = BTTV_BOARD_OSPREY2x0_SVID;
-                       break;
-               case 0x0040:
-                       btv->c.type = BTTV_BOARD_OSPREY500;
-                       break;
-               case 0x0050:
-               case 0x0056:
-                       btv->c.type = BTTV_BOARD_OSPREY540;
-                       /* bttv_osprey_540_init(btv); */
-                       break;
-               case 0x0060:
-               case 0x0070:
-               case 0x00A0:
-                       btv->c.type = BTTV_BOARD_OSPREY2x0;
-                       /* enable output on select control lines */
-                       gpio_inout(0xffffff,0x000303);
-                       break;
-               default:
-                       /* unknown...leave generic, but get serial # */
-                       break;
-               }
-               serial =  (ee[offset+6] << 24)
-                       | (ee[offset+7] << 16)
-                       | (ee[offset+8] <<  8)
-                       | (ee[offset+9]);
-       }
-
-       printk(KERN_INFO "bttv%d: osprey eeprom: card=%d name=%s serial=%ld\n",
-              btv->c.nr, btv->c.type, bttv_tvcards[btv->c.type].name,serial);
+                unsigned short type;
+
+                for (i = 4*16; i < 8*16; i += 16) {
+                        u16 checksum = ip_compute_csum(ee + i, 16);
+
+                        if ((checksum&0xff) + (checksum>>8) == 0xff)
+                                break;
+                }
+                if (i >= 8*16)
+                        return;
+                ee += i;
+
+                /* found a valid descriptor */
+                type = be16_to_cpup((u16*)(ee+4));
+
+                switch(type) {
+                /* 848 based */
+                case 0x0004:
+                        cardid = BTTV_BOARD_OSPREY1x0_848;
+                        break;
+                case 0x0005:
+                        cardid = BTTV_BOARD_OSPREY101_848;
+                        break;
+
+                /* 878 based */
+                case 0x0012:
+                case 0x0013:
+                        cardid = BTTV_BOARD_OSPREY1x0;
+                        break;
+                case 0x0014:
+                case 0x0015:
+                        cardid = BTTV_BOARD_OSPREY1x1;
+                        break;
+                case 0x0016:
+                case 0x0017:
+                case 0x0020:
+                        cardid = BTTV_BOARD_OSPREY1x1_SVID;
+                        break;
+                case 0x0018:
+                case 0x0019:
+                case 0x001E:
+                case 0x001F:
+                        cardid = BTTV_BOARD_OSPREY2xx;
+                        break;
+                case 0x001A:
+                case 0x001B:
+                        cardid = BTTV_BOARD_OSPREY2x0_SVID;
+                        break;
+                case 0x0040:
+                        cardid = BTTV_BOARD_OSPREY500;
+                        break;
+                case 0x0050:
+                case 0x0056:
+                        cardid = BTTV_BOARD_OSPREY540;
+                        /* bttv_osprey_540_init(btv); */
+                        break;
+                case 0x0060:
+                case 0x0070:
+                case 0x00A0:
+                        cardid = BTTV_BOARD_OSPREY2x0;
+                        /* enable output on select control lines */
+                        gpio_inout(0xffffff,0x000303);
+                        break;
+                case 0x00D8:
+                        cardid = BTTV_BOARD_OSPREY440;
+                        break;
+                default:
+                        /* unknown...leave generic, but get serial # */
+                        printk(KERN_INFO "bttv%d: "
+                               "osprey eeprom: unknown card type 0x%04x\n",
+                               btv->c.nr, type);
+                        break;
+                }
+                serial = be32_to_cpup((u32*)(ee+6));
+        }
+
+        printk(KERN_INFO "bttv%d: osprey eeprom: card=%d '%s' serial=%u\n",
+               btv->c.nr, cardid,
+               cardid>0 ? bttv_tvcards[cardid].name : "Unknown", serial);
+
+        if (cardid<0 || btv->c.type == cardid)
+                return;
+
+        /* card type isn't set correctly */
+        if (card[btv->c.nr] < bttv_num_tvcards) {
+                printk(KERN_WARNING "bttv%d: osprey eeprom: "
+                       "Not overriding user specified card type\n", btv->c.nr);
+        } else {
+                printk(KERN_INFO "bttv%d: osprey eeprom: "
+                       "Changing card type from %d to %d\n", btv->c.nr,
+                       btv->c.type, cardid);
+                btv->c.type = cardid;
+        }
 }
 
 /* ----------------------------------------------------------------------- */