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Commit f8f8a660 authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by John W. Linville
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ssb: remove 5GHz antenna gain from sprom 



There is no 2.4 GHz or 5GHz antenna gain stored in sprom. The sprom
just stores the gain values for antenna 1 and 2 or 1 to 4 for more
recent sprom versions. On old devices antenna 2 was used for 5 GHz wifi.

Signed-off-by: default avatarHauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent edd8d90b

drivers/net/wireless/b43legacy/phy.c

+1 −1
Original line number Diff line number Diff line
@@ -1860,7 +1860,7 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev) 
	 * which accounts for the factor of 4 */

#define REG_MAX_PWR 20

	max_pwr = min(REG_MAX_PWR * 4

		      - dev->dev->bus->sprom.antenna_gain.ghz24.a0

		      - dev->dev->bus->sprom.antenna_gain.a0

		      - 0x6, max_pwr);



	/* find the desired power in Q5.2 - power_level is in dBm

drivers/ssb/pci.c

+14 −27
Original line number Diff line number Diff line
@@ -331,7 +331,6 @@ static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) 
{

	int i;

	u16 v;

	s8 gain;

	u16 loc[3];



	if (out->revision == 3)			/* rev 3 moved MAC */
@@ -390,20 +389,12 @@ static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) 
		SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0);



	/* Extract the antenna gain values. */

	gain = r123_extract_antgain(out->revision, in,

	out->antenna_gain.a0 = r123_extract_antgain(out->revision, in,

						    SSB_SPROM1_AGAIN_BG,

						    SSB_SPROM1_AGAIN_BG_SHIFT);

	out->antenna_gain.ghz24.a0 = gain;

	out->antenna_gain.ghz24.a1 = gain;

	out->antenna_gain.ghz24.a2 = gain;

	out->antenna_gain.ghz24.a3 = gain;

	gain = r123_extract_antgain(out->revision, in,

	out->antenna_gain.a1 = r123_extract_antgain(out->revision, in,

						    SSB_SPROM1_AGAIN_A,

						    SSB_SPROM1_AGAIN_A_SHIFT);

	out->antenna_gain.ghz5.a0 = gain;

	out->antenna_gain.ghz5.a1 = gain;

	out->antenna_gain.ghz5.a2 = gain;

	out->antenna_gain.ghz5.a3 = gain;

}



/* Revs 4 5 and 8 have partially shared layout */
@@ -504,16 +495,14 @@ static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in) 
	}



	/* Extract the antenna gain values. */

	SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01,

	SPEX(antenna_gain.a0, SSB_SPROM4_AGAIN01,

	     SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);

	SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01,

	SPEX(antenna_gain.a1, SSB_SPROM4_AGAIN01,

	     SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);

	SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23,

	SPEX(antenna_gain.a2, SSB_SPROM4_AGAIN23,

	     SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);

	SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23,

	SPEX(antenna_gain.a3, SSB_SPROM4_AGAIN23,

	     SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);

	memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,

	       sizeof(out->antenna_gain.ghz5));



	sprom_extract_r458(out, in);
@@ -602,16 +591,14 @@ static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in) 
	SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0);



	/* Extract the antenna gain values. */

	SPEX(antenna_gain.ghz24.a0, SSB_SPROM8_AGAIN01,

	SPEX(antenna_gain.a0, SSB_SPROM8_AGAIN01,

	     SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);

	SPEX(antenna_gain.ghz24.a1, SSB_SPROM8_AGAIN01,

	SPEX(antenna_gain.a1, SSB_SPROM8_AGAIN01,

	     SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);

	SPEX(antenna_gain.ghz24.a2, SSB_SPROM8_AGAIN23,

	SPEX(antenna_gain.a2, SSB_SPROM8_AGAIN23,

	     SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);

	SPEX(antenna_gain.ghz24.a3, SSB_SPROM8_AGAIN23,

	SPEX(antenna_gain.a3, SSB_SPROM8_AGAIN23,

	     SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);

	memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24,

	       sizeof(out->antenna_gain.ghz5));



	/* Extract cores power info info */

	for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {

drivers/ssb/pcmcia.c

+4 −8
Original line number Diff line number Diff line
@@ -676,14 +676,10 @@ static int ssb_pcmcia_do_get_invariants(struct pcmcia_device *p_dev, 
	case SSB_PCMCIA_CIS_ANTGAIN:

		GOTO_ERROR_ON(tuple->TupleDataLen != 2,

			"antg tpl size");

		sprom->antenna_gain.ghz24.a0 = tuple->TupleData[1];

		sprom->antenna_gain.ghz24.a1 = tuple->TupleData[1];

		sprom->antenna_gain.ghz24.a2 = tuple->TupleData[1];

		sprom->antenna_gain.ghz24.a3 = tuple->TupleData[1];

		sprom->antenna_gain.ghz5.a0 = tuple->TupleData[1];

		sprom->antenna_gain.ghz5.a1 = tuple->TupleData[1];

		sprom->antenna_gain.ghz5.a2 = tuple->TupleData[1];

		sprom->antenna_gain.ghz5.a3 = tuple->TupleData[1];

		sprom->antenna_gain.a0 = tuple->TupleData[1];

		sprom->antenna_gain.a1 = tuple->TupleData[1];

		sprom->antenna_gain.a2 = tuple->TupleData[1];

		sprom->antenna_gain.a3 = tuple->TupleData[1];

		break;

	case SSB_PCMCIA_CIS_BFLAGS:

		GOTO_ERROR_ON((tuple->TupleDataLen != 3) &&

drivers/ssb/sdio.c

+4 −8
Original line number Diff line number Diff line
@@ -551,14 +551,10 @@ int ssb_sdio_get_invariants(struct ssb_bus *bus, 
			case SSB_SDIO_CIS_ANTGAIN:

				GOTO_ERROR_ON(tuple->size != 2,

					      "antg tpl size");

				sprom->antenna_gain.ghz24.a0 = tuple->data[1];

				sprom->antenna_gain.ghz24.a1 = tuple->data[1];

				sprom->antenna_gain.ghz24.a2 = tuple->data[1];

				sprom->antenna_gain.ghz24.a3 = tuple->data[1];

				sprom->antenna_gain.ghz5.a0 = tuple->data[1];

				sprom->antenna_gain.ghz5.a1 = tuple->data[1];

				sprom->antenna_gain.ghz5.a2 = tuple->data[1];

				sprom->antenna_gain.ghz5.a3 = tuple->data[1];

				sprom->antenna_gain.a0 = tuple->data[1];

				sprom->antenna_gain.a1 = tuple->data[1];

				sprom->antenna_gain.a2 = tuple->data[1];

				sprom->antenna_gain.a3 = tuple->data[1];

				break;

			case SSB_SDIO_CIS_BFLAGS:

				GOTO_ERROR_ON((tuple->size != 3) &&

include/linux/ssb/ssb.h

+1 −6
Original line number Diff line number Diff line
@@ -93,13 +93,8 @@ struct ssb_sprom { 
	/* Antenna gain values for up to 4 antennas

	 * on each band. Values in dBm/4 (Q5.2). Negative gain means the

	 * loss in the connectors is bigger than the gain. */

	struct {

		struct {

			s8 a0, a1, a2, a3;

		} ghz24;	/* 2.4GHz band */

	struct {

		s8 a0, a1, a2, a3;

		} ghz5;		/* 5GHz band */

	} antenna_gain;



	struct {