b43: Add more N-PHY stuff
This adds some minor stuff for N-PHY support. Nothing special. Adds Analog switching and some TODOs for RSSI processing. Just a patch I had floating around for quite some time now. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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4 changed files with 41 additions and 12 deletions
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@ -46,6 +46,7 @@
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#include "main.h"
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#include "debugfs.h"
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#include "phy.h"
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#include "nphy.h"
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#include "dma.h"
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#include "pio.h"
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#include "sysfs.h"
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@ -1019,7 +1020,18 @@ void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
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/* Turn the Analog ON/OFF */
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static void b43_switch_analog(struct b43_wldev *dev, int on)
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{
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b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
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switch (dev->phy.type) {
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case B43_PHYTYPE_A:
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case B43_PHYTYPE_G:
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b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
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break;
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case B43_PHYTYPE_N:
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b43_phy_write(dev, B43_NPHY_AFECTL_OVER,
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on ? 0 : 0x7FFF);
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break;
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default:
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B43_WARN_ON(1);
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}
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}
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void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
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@ -240,7 +240,6 @@ static void b43_nphy_workarounds(struct b43_wldev *dev)
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b43_phy_set(dev, B43_NPHY_IQFLIP,
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B43_NPHY_IQFLIP_ADC1 | B43_NPHY_IQFLIP_ADC2);
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//FIXME the following condition is different in the specs.
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if (1 /* FIXME band is 2.4GHz */) {
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b43_phy_set(dev, B43_NPHY_CLASSCTL,
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B43_NPHY_CLASSCTL_CCKEN);
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@ -513,7 +513,6 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
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u32 macstat;
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u16 chanid;
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u16 phytype;
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u8 jssi;
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int padding;
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memset(&status, 0, sizeof(status));
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@ -521,7 +520,6 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
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/* Get metadata about the frame from the header. */
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phystat0 = le16_to_cpu(rxhdr->phy_status0);
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phystat3 = le16_to_cpu(rxhdr->phy_status3);
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jssi = rxhdr->jssi;
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macstat = le32_to_cpu(rxhdr->mac_status);
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mactime = le16_to_cpu(rxhdr->mac_time);
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chanstat = le16_to_cpu(rxhdr->channel);
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@ -575,13 +573,22 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
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}
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}
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status.ssi = b43_rssi_postprocess(dev, jssi,
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(phystat0 & B43_RX_PHYST0_OFDM),
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(phystat0 & B43_RX_PHYST0_GAINCTL),
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(phystat3 & B43_RX_PHYST3_TRSTATE));
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/* Link quality statistics */
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status.noise = dev->stats.link_noise;
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/* the next line looks wrong, but is what mac80211 wants */
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status.signal = (jssi * 100) / B43_RX_MAX_SSI;
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if ((chanstat & B43_RX_CHAN_PHYTYPE) == B43_PHYTYPE_N) {
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// s8 rssi = max(rxhdr->power0, rxhdr->power1);
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//TODO: Find out what the rssi value is (dBm or percentage?)
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// and also find out what the maximum possible value is.
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// Fill status.ssi and status.signal fields.
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} else {
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status.ssi = b43_rssi_postprocess(dev, rxhdr->jssi,
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(phystat0 & B43_RX_PHYST0_OFDM),
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(phystat0 & B43_RX_PHYST0_GAINCTL),
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(phystat3 & B43_RX_PHYST3_TRSTATE));
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/* the next line looks wrong, but is what mac80211 wants */
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status.signal = (rxhdr->jssi * 100) / B43_RX_MAX_SSI;
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}
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if (phystat0 & B43_RX_PHYST0_OFDM)
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status.rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp,
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phytype == B43_PHYTYPE_A);
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@ -212,8 +212,19 @@ struct b43_rxhdr_fw4 {
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__le16 frame_len; /* Frame length */
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PAD_BYTES(2);
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__le16 phy_status0; /* PHY RX Status 0 */
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__u8 jssi; /* PHY RX Status 1: JSSI */
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__u8 sig_qual; /* PHY RX Status 1: Signal Quality */
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union {
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/* RSSI for A/B/G-PHYs */
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struct {
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__u8 jssi; /* PHY RX Status 1: JSSI */
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__u8 sig_qual; /* PHY RX Status 1: Signal Quality */
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} __attribute__ ((__packed__));
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/* RSSI for N-PHYs */
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struct {
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__s8 power0; /* PHY RX Status 1: Power 0 */
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__s8 power1; /* PHY RX Status 1: Power 1 */
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} __attribute__ ((__packed__));
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} __attribute__ ((__packed__));
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__le16 phy_status2; /* PHY RX Status 2 */
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__le16 phy_status3; /* PHY RX Status 3 */
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__le32 mac_status; /* MAC RX status */
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