tveeprom.c

trident tm5600的linux驱动

	case 59: /* PNPEnv_TUNER_FM1216MP_MK3 */
	case 58: /* PNPEnv_TUNER_FM1236_MK3 */
	case 68: /* PNPEnv_TUNER_TAPE_H001F_MK3 */
	case 61: /* PNPEnv_TUNER_TAPE_M001D_MK3 */
	case 78: /* PNPEnv_TUNER_TDA8275C1_8290_FM */
	case 89: /* PNPEnv_TUNER_TCL_MFPE05_2 */
	case 92: /* PNPEnv_TUNER_PHILIPS_FQ1236A_MK4 */
	case 105:
		return 1;
	}
	return 0;
}

void tveeprom_hauppauge_analog(struct i2c_client *c, struct tveeprom *tvee,
				unsigned char *eeprom_data)
{
	/* ----------------------------------------------
	** The hauppauge eeprom format is tagged
	**
	** if packet[0] == 0x84, then packet[0..1] == length
	** else length = packet[0] & 3f;
	** if packet[0] & f8 == f8, then EOD and packet[1] == checksum
	**
	** In our (ivtv) case we're interested in the following:
	** tuner type:   tag [00].05 or [0a].01 (index into hauppauge_tuner)
	** tuner fmts:   tag [00].04 or [0a].00 (bitmask index into
	**		 hauppauge_tuner_fmt)
	** radio:        tag [00].{last} or [0e].00  (bitmask.  bit2=FM)
	** audio proc:   tag [02].01 or [05].00 (mask with 0x7f)
	** decoder proc: tag [09].01)

	** Fun info:
	** model:      tag [00].07-08 or [06].00-01
	** revision:   tag [00].09-0b or [06].04-06
	** serial#:    tag [01].05-07 or [04].04-06

	** # of inputs/outputs ???
	*/

	int i, j, len, done, beenhere, tag, start;

	int tuner1 = 0, t_format1 = 0, audioic = -1;
	char *t_name1 = NULL;
	const char *t_fmt_name1[8] = { " none", "", "", "", "", "", "", "" };

	int tuner2 = 0, t_format2 = 0;
	char *t_name2 = NULL;
	const char *t_fmt_name2[8] = { " none", "", "", "", "", "", "", "" };

	memset(tvee, 0, sizeof(*tvee));
	done = len = beenhere = 0;

	/* Different eeprom start offsets for em28xx, cx2388x and cx23418 */
	if (eeprom_data[0] == 0x1a &&
	    eeprom_data[1] == 0xeb &&
	    eeprom_data[2] == 0x67 &&
	    eeprom_data[3] == 0x95)
		start = 0xa0; /* Generic em28xx offset */
	else if ((eeprom_data[0] & 0xe1) == 0x01 &&
		 eeprom_data[1] == 0x00 &&
		 eeprom_data[2] == 0x00 &&
		 eeprom_data[8] == 0x84)
		start = 8; /* Generic cx2388x offset */
	else if (eeprom_data[1] == 0x70 &&
		 eeprom_data[2] == 0x00 &&
		 eeprom_data[4] == 0x74 &&
		 eeprom_data[8] == 0x84)
		start = 8; /* Generic cx23418 offset (models 74xxx) */
	else
		start = 0;

	for (i = start; !done && i < 256; i += len) {
		if (eeprom_data[i] == 0x84) {
			len = eeprom_data[i + 1] + (eeprom_data[i + 2] << 8);
			i += 3;
		} else if ((eeprom_data[i] & 0xf0) == 0x70) {
			if (eeprom_data[i] & 0x08) {
				/* verify checksum! */
				done = 1;
				break;
			}
			len = eeprom_data[i] & 0x07;
			++i;
		} else {
			tveeprom_warn("Encountered bad packet header [%02x]. "
				"Corrupt or not a Hauppauge eeprom.\n",
				eeprom_data[i]);
			return;
		}

		if (debug) {
			tveeprom_info("Tag [%02x] + %d bytes:",
					eeprom_data[i], len - 1);
			for (j = 1; j < len; j++)
				printk(KERN_CONT " %02x", eeprom_data[i + j]);
			printk(KERN_CONT "\n");
		}

		/* process by tag */
		tag = eeprom_data[i];
		switch (tag) {
		case 0x00:
			/* tag: 'Comprehensive' */
			tuner1 = eeprom_data[i+6];
			t_format1 = eeprom_data[i+5];
			tvee->has_radio = eeprom_data[i+len-1];
			/* old style tag, don't know how to detect
			IR presence, mark as unknown. */
			tvee->has_ir = 0;
			tvee->model =
				eeprom_data[i+8] +
				(eeprom_data[i+9] << 8);
			tvee->revision = eeprom_data[i+10] +
				(eeprom_data[i+11] << 8) +
				(eeprom_data[i+12] << 16);
			break;

		case 0x01:
			/* tag: 'SerialID' */
			tvee->serial_number =
				eeprom_data[i+6] +
				(eeprom_data[i+7] << 8) +
				(eeprom_data[i+8] << 16);
			break;

		case 0x02:
			/* tag 'AudioInfo'
			Note mask with 0x7F, high bit used on some older models
			to indicate 4052 mux was removed in favor of using MSP
			inputs directly. */
			audioic = eeprom_data[i+2] & 0x7f;
			if (audioic < ARRAY_SIZE(audioIC))
				tvee->audio_processor = audioIC[audioic].id;
			else
				tvee->audio_processor = V4L2_IDENT_UNKNOWN;
			break;

		/* case 0x03: tag 'EEInfo' */

		case 0x04:
			/* tag 'SerialID2' */
			tvee->serial_number =
				eeprom_data[i+5] +
				(eeprom_data[i+6] << 8) +
				(eeprom_data[i+7] << 16);

			if ((eeprom_data[i + 8] & 0xf0) &&
					(tvee->serial_number < 0xffffff)) {
				tvee->MAC_address[0] = 0x00;
				tvee->MAC_address[1] = 0x0D;
				tvee->MAC_address[2] = 0xFE;
				tvee->MAC_address[3] = eeprom_data[i + 7];
				tvee->MAC_address[4] = eeprom_data[i + 6];
				tvee->MAC_address[5] = eeprom_data[i + 5];
				tvee->has_MAC_address = 1;
			}
			break;

		case 0x05:
			/* tag 'Audio2'
			Note mask with 0x7F, high bit used on some older models
			to indicate 4052 mux was removed in favor of using MSP
			inputs directly. */
			audioic = eeprom_data[i+1] & 0x7f;
			if (audioic < ARRAY_SIZE(audioIC))
				tvee->audio_processor = audioIC[audioic].id;
			else
				tvee->audio_processor = V4L2_IDENT_UNKNOWN;

			break;

		case 0x06:
			/* tag 'ModelRev' */
			tvee->model =
				eeprom_data[i + 1] +
				(eeprom_data[i + 2] << 8) +
				(eeprom_data[i + 3] << 16) +
				(eeprom_data[i + 4] << 24);
			tvee->revision =
				eeprom_data[i + 5] +
				(eeprom_data[i + 6] << 8) +
				(eeprom_data[i + 7] << 16);
			break;

		case 0x07:
			/* tag 'Details': according to Hauppauge not interesting
			on any PCI-era or later boards. */
			break;

		/* there is no tag 0x08 defined */

		case 0x09:
			/* tag 'Video' */
			tvee->decoder_processor = eeprom_data[i + 1];
			break;

		case 0x0a:
			/* tag 'Tuner' */
			if (beenhere == 0) {
				tuner1 = eeprom_data[i + 2];
				t_format1 = eeprom_data[i + 1];
				beenhere = 1;
			} else {
				/* a second (radio) tuner may be present */
				tuner2 = eeprom_data[i + 2];
				t_format2 = eeprom_data[i + 1];
				/* not a TV tuner? */
				if (t_format2 == 0)
					tvee->has_radio = 1; /* must be radio */
			}
			break;

		case 0x0b:
			/* tag 'Inputs': according to Hauppauge this is specific
			to each driver family, so no good assumptions can be
			made. */
			break;

		/* case 0x0c: tag 'Balun' */
		/* case 0x0d: tag 'Teletext' */

		case 0x0e:
			/* tag: 'Radio' */
			tvee->has_radio = eeprom_data[i+1];
			break;

		case 0x0f:
			/* tag 'IRInfo' */
			tvee->has_ir = 1 | (eeprom_data[i+1] << 1);
			break;

		/* case 0x10: tag 'VBIInfo' */
		/* case 0x11: tag 'QCInfo' */
		/* case 0x12: tag 'InfoBits' */

		default:
			tveeprom_dbg("Not sure what to do with tag [%02x]\n",
					tag);
			/* dump the rest of the packet? */
		}
	}

	if (!done) {
		tveeprom_warn("Ran out of data!\n");
		return;
	}

	if (tvee->revision != 0) {
		tvee->rev_str[0] = 32 + ((tvee->revision >> 18) & 0x3f);
		tvee->rev_str[1] = 32 + ((tvee->revision >> 12) & 0x3f);
		tvee->rev_str[2] = 32 + ((tvee->revision >>  6) & 0x3f);
		tvee->rev_str[3] = 32 + (tvee->revision & 0x3f);
		tvee->rev_str[4] = 0;
	}

	if (hasRadioTuner(tuner1) && !tvee->has_radio) {
		tveeprom_info("The eeprom says no radio is present, but the tuner type\n");
		tveeprom_info("indicates otherwise. I will assume that radio is present.\n");
		tvee->has_radio = 1;
	}

	if (tuner1 < sizeof(hauppauge_tuner)/sizeof(struct HAUPPAUGE_TUNER)) {
		tvee->tuner_type = hauppauge_tuner[tuner1].id;
		t_name1 = hauppauge_tuner[tuner1].name;
	} else {
		t_name1 = "unknown";
	}

	if (tuner2 < sizeof(hauppauge_tuner)/sizeof(struct HAUPPAUGE_TUNER)) {
		tvee->tuner2_type = hauppauge_tuner[tuner2].id;
		t_name2 = hauppauge_tuner[tuner2].name;
	} else {
		t_name2 = "unknown";
	}

	tvee->tuner_hauppauge_model = tuner1;
	tvee->tuner2_hauppauge_model = tuner2;
	tvee->tuner_formats = 0;
	tvee->tuner2_formats = 0;
	for (i = j = 0; i < 8; i++) {
		if (t_format1 & (1 << i)) {
			tvee->tuner_formats |= hauppauge_tuner_fmt[i].id;
			t_fmt_name1[j++] = hauppauge_tuner_fmt[i].name;
		}
	}
	for (i = j = 0; i < 8; i++) {
		if (t_format2 & (1 << i)) {
			tvee->tuner2_formats |= hauppauge_tuner_fmt[i].id;
			t_fmt_name2[j++] = hauppauge_tuner_fmt[i].name;
		}
	}

	tveeprom_info("Hauppauge model %d, rev %s, serial# %d\n",
		tvee->model, tvee->rev_str, tvee->serial_number);
	if (tvee->has_MAC_address == 1)
		tveeprom_info("MAC address is %02X-%02X-%02X-%02X-%02X-%02X\n",
			tvee->MAC_address[0], tvee->MAC_address[1],
			tvee->MAC_address[2], tvee->MAC_address[3],
			tvee->MAC_address[4], tvee->MAC_address[5]);
	tveeprom_info("tuner model is %s (idx %d, type %d)\n",
		t_name1, tuner1, tvee->tuner_type);
	tveeprom_info("TV standards%s%s%s%s%s%s%s%s (eeprom 0x%02x)\n",
		t_fmt_name1[0], t_fmt_name1[1], t_fmt_name1[2],
		t_fmt_name1[3],	t_fmt_name1[4], t_fmt_name1[5],
		t_fmt_name1[6], t_fmt_name1[7],	t_format1);
	if (tuner2)
		tveeprom_info("second tuner model is %s (idx %d, type %d)\n",
					t_name2, tuner2, tvee->tuner2_type);
	if (t_format2)
		tveeprom_info("TV standards%s%s%s%s%s%s%s%s (eeprom 0x%02x)\n",
			t_fmt_name2[0], t_fmt_name2[1], t_fmt_name2[2],
			t_fmt_name2[3],	t_fmt_name2[4], t_fmt_name2[5],
			t_fmt_name2[6], t_fmt_name2[7], t_format2);
	if (audioic < 0) {
		tveeprom_info("audio processor is unknown (no idx)\n");
		tvee->audio_processor = V4L2_IDENT_UNKNOWN;
	} else {
		if (audioic < ARRAY_SIZE(audioIC))
			tveeprom_info("audio processor is %s (idx %d)\n",
					audioIC[audioic].name, audioic);
		else
			tveeprom_info("audio processor is unknown (idx %d)\n",
								audioic);
	}
	if (tvee->decoder_processor)
		tveeprom_info("decoder processor is %s (idx %d)\n",
			STRM(decoderIC, tvee->decoder_processor),
			tvee->decoder_processor);
	if (tvee->has_ir)
		tveeprom_info("has %sradio, has %sIR receiver, has %sIR transmitter\n",
				tvee->has_radio ? "" : "no ",
				(tvee->has_ir & 2) ? "" : "no ",
				(tvee->has_ir & 4) ? "" : "no ");
	else
		tveeprom_info("has %sradio\n",
				tvee->has_radio ? "" : "no ");
}
EXPORT_SYMBOL(tveeprom_hauppauge_analog);

/* ----------------------------------------------------------------------- */
/* generic helper functions                                                */

int tveeprom_read(struct i2c_client *c, unsigned char *eedata, int len)
{
	unsigned char buf;
	int err;

	buf = 0;
	err = i2c_master_send(c, &buf, 1);
	if (err != 1) {
		tveeprom_info("Huh, no eeprom present (err=%d)?\n", err);
		return -1;
	}
	err = i2c_master_recv(c, eedata, len);
	if (err != len) {
		tveeprom_warn("i2c eeprom read error (err=%d)\n", err);
		return -1;
	}
	if (debug) {
		int i;

		tveeprom_info("full 256-byte eeprom dump:\n");
		for (i = 0; i < len; i++) {
			if (0 == (i % 16))
				tveeprom_info("%02x:", i);
			printk(KERN_CONT " %02x", eedata[i]);
			if (15 == (i % 16))
				printk(KERN_CONT "\n");
		}
	}
	return 0;
}
EXPORT_SYMBOL(tveeprom_read);

/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 */