- 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;
+ }