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Commit a6b7da5d authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville
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b43: HT-PHY: switch radio to requested channel 



Switching channel happens after specific SHM write to B43_SHM_SH_CHAN.
This is the way we found it in BCM4331 MMIO dumps. By comparing with
N-PHY code we noticed there is routing used for SYN and TX/RX.

Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 39ca554c

drivers/net/wireless/b43/phy_ht.c

+39 −0
Original line number Diff line number Diff line
@@ -30,6 +30,45 @@ 
static void b43_radio_2059_channel_setup(struct b43_wldev *dev,

			const struct b43_phy_ht_channeltab_e_radio2059 *e)

{

	u8 i;

	u16 routing;



	b43_radio_write(dev, 0x16, e->radio_syn16);

	b43_radio_write(dev, 0x17, e->radio_syn17);

	b43_radio_write(dev, 0x22, e->radio_syn22);

	b43_radio_write(dev, 0x25, e->radio_syn25);

	b43_radio_write(dev, 0x27, e->radio_syn27);

	b43_radio_write(dev, 0x28, e->radio_syn28);

	b43_radio_write(dev, 0x29, e->radio_syn29);

	b43_radio_write(dev, 0x2c, e->radio_syn2c);

	b43_radio_write(dev, 0x2d, e->radio_syn2d);

	b43_radio_write(dev, 0x37, e->radio_syn37);

	b43_radio_write(dev, 0x41, e->radio_syn41);

	b43_radio_write(dev, 0x43, e->radio_syn43);

	b43_radio_write(dev, 0x47, e->radio_syn47);

	b43_radio_write(dev, 0x4a, e->radio_syn4a);

	b43_radio_write(dev, 0x58, e->radio_syn58);

	b43_radio_write(dev, 0x5a, e->radio_syn5a);

	b43_radio_write(dev, 0x6a, e->radio_syn6a);

	b43_radio_write(dev, 0x6d, e->radio_syn6d);

	b43_radio_write(dev, 0x6e, e->radio_syn6e);

	b43_radio_write(dev, 0x92, e->radio_syn92);

	b43_radio_write(dev, 0x98, e->radio_syn98);



	for (i = 0; i < 2; i++) {

		routing = i ? 0x800 : 0x400;

		b43_radio_write(dev, routing | 0x4a, e->radio_rxtx4a);

		b43_radio_write(dev, routing | 0x58, e->radio_rxtx58);

		b43_radio_write(dev, routing | 0x5a, e->radio_rxtx5a);

		b43_radio_write(dev, routing | 0x6a, e->radio_rxtx6a);

		b43_radio_write(dev, routing | 0x6d, e->radio_rxtx6d);

		b43_radio_write(dev, routing | 0x6e, e->radio_rxtx6e);

		b43_radio_write(dev, routing | 0x92, e->radio_rxtx92);

		b43_radio_write(dev, routing | 0x98, e->radio_rxtx98);

	}



	udelay(50);



	/* TODO */

}

drivers/net/wireless/b43/radio_2059.h

+29 −1
Original line number Diff line number Diff line
@@ -10,7 +10,35 @@ struct b43_phy_ht_channeltab_e_radio2059 { 
	/* The channel frequency in MHz */

	u16 freq;

	/* Values for radio registers */

	/* TODO */

	u8 radio_syn16;

	u8 radio_syn17;

	u8 radio_syn22;

	u8 radio_syn25;

	u8 radio_syn27;

	u8 radio_syn28;

	u8 radio_syn29;

	u8 radio_syn2c;

	u8 radio_syn2d;

	u8 radio_syn37;

	u8 radio_syn41;

	u8 radio_syn43;

	u8 radio_syn47;

	u8 radio_syn4a;

	u8 radio_syn58;

	u8 radio_syn5a;

	u8 radio_syn6a;

	u8 radio_syn6d;

	u8 radio_syn6e;

	u8 radio_syn92;

	u8 radio_syn98;

	u8 radio_rxtx4a;

	u8 radio_rxtx58;

	u8 radio_rxtx5a;

	u8 radio_rxtx6a;

	u8 radio_rxtx6d;

	u8 radio_rxtx6e;

	u8 radio_rxtx92;

	u8 radio_rxtx98;

	/* Values for PHY registers */

	struct b43_phy_ht_channeltab_e_phy phy_regs;

};