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p54: more accurate rssi to dBm conversion

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This patch replaces the static rssi auto calibration data
with more precise values out of the device's eeprom.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter
2008-12-14 14:45:30 +01:00
committed by John W. Linville
parent da9f57eade
commit 69ba3e5d74
3 changed files with 68 additions and 26 deletions
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8
drivers/net/wireless/p54/p54.h
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@ -61,6 +61,13 @@ struct p54_edcf_queue_param {
__le16 txop;
} __attribute__ ((packed));
struct p54_rssi_linear_approximation {
s16 mul;
s16 add;
s16 longbow_unkn;
s16 longbow_unk2;
};
#define EEPROM_READBACK_LEN 0x3fc
#define ISL38XX_DEV_FIRMWARE_ADDR 0x20000
@ -91,6 +98,7 @@ struct p54_common {
struct pda_channel_output_limit *output_limit;
unsigned int output_limit_len;
struct pda_pa_curve_data *curve_data;
struct p54_rssi_linear_approximation rssical_db[IEEE80211_NUM_BANDS];
unsigned int filter_flags;
bool use_short_slot;
u16 rxhw;