* Use the new way to modify rf buffer and put some rf buffer
documentation on rfbufer.h
* Merge all rf regs functions to one
* Sync with legacy HAL and Sam's HAL
* Set gain_F settings so that gain_F optimization engine works
on RF5111/RF5112 (note that both HALs only use step 0 for RF5111
and they don't use gain_F optimization for this chip, code is
there but is never used)
Signed-off-by: Nick Kossifidis <[email protected]>
---
drivers/net/wireless/ath5k/ath5k.h | 11 +-
drivers/net/wireless/ath5k/phy.c | 571 +++++++++++++++++----------------
drivers/net/wireless/ath5k/reg.h | 24 --
drivers/net/wireless/ath5k/reset.c | 2 +-
drivers/net/wireless/ath5k/rfbuffer.h | 88 +++++-
5 files changed, 379 insertions(+), 317 deletions(-)
diff --git a/drivers/net/wireless/ath5k/ath5k.h b/drivers/net/wireless/ath5k/ath5k.h
index c870e2a..5b2e0da 100644
--- a/drivers/net/wireless/ath5k/ath5k.h
+++ b/drivers/net/wireless/ath5k/ath5k.h
@@ -165,9 +165,6 @@
#define AR5K_INI_VAL_XR 0
#define AR5K_INI_VAL_MAX 5
-#define AR5K_RF5111_INI_RF_MAX_BANKS AR5K_MAX_RF_BANKS
-#define AR5K_RF5112_INI_RF_MAX_BANKS AR5K_MAX_RF_BANKS
-
/* Used for BSSID etc manipulation */
#define AR5K_LOW_ID(_a)( \
(_a)[0] | (_a)[1] << 8 | (_a)[2] << 16 | (_a)[3] << 24 \
@@ -342,6 +339,7 @@ struct ath5k_srev_name {
#define AR5K_SREV_PHY_5211 0x30
#define AR5K_SREV_PHY_5212 0x41
+#define AR5K_SREV_PHY_5212A 0x42
#define AR5K_SREV_PHY_2112B 0x43
#define AR5K_SREV_PHY_2413 0x45
#define AR5K_SREV_PHY_5413 0x61
@@ -1083,8 +1081,9 @@ struct ath5k_hw {
u32 ah_txq_isr;
u32 *ah_rf_banks;
size_t ah_rf_banks_size;
+ size_t ah_rf_regs_count;
struct ath5k_gain ah_gain;
- u32 ah_offset[AR5K_MAX_RF_BANKS];
+ u8 ah_offset[AR5K_MAX_RF_BANKS];
struct {
u16 txp_pcdac[AR5K_EEPROM_POWER_TABLE_SIZE];
@@ -1232,7 +1231,9 @@ extern int ath5k_hw_disable_pspoll(struct ath5k_hw *ah);
extern int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel);
/* Initialize RF */
-extern int ath5k_hw_rfregs(struct ath5k_hw *ah, struct ieee80211_channel *channel, unsigned int mode);
+extern int ath5k_hw_rfregs_init(struct ath5k_hw *ah,
+ struct ieee80211_channel *channel,
+ unsigned int mode);
extern int ath5k_hw_rfgain_init(struct ath5k_hw *ah, unsigned int freq);
extern enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah);
extern int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah);
diff --git a/drivers/net/wireless/ath5k/phy.c b/drivers/net/wireless/ath5k/phy.c
index 2543a71..81f5beb 100644
--- a/drivers/net/wireless/ath5k/phy.c
+++ b/drivers/net/wireless/ath5k/phy.c
@@ -32,48 +32,80 @@
/*
* Used to modify RF Banks before writing them to AR5K_RF_BUFFER
*/
-static unsigned int ath5k_hw_rfregs_op(u32 *rf, u32 offset, u32 reg, u32 bits,
- u32 first, u32 col, bool set)
+static unsigned int ath5k_hw_rfb_op(struct ath5k_hw *ah,
+ const struct ath5k_rf_reg *rf_regs,
+ u32 val, u8 reg_id, bool set)
{
- u32 mask, entry, last, data, shift, position;
- s32 left;
+ const struct ath5k_rf_reg *rfreg = NULL;
+ u8 offset, bank, num_bits, col, position;
+ u16 entry;
+ u32 mask, data, last_bit, bits_shifted, first_bit;
+ u32 *rfb;
+ s32 bits_left;
int i;
data = 0;
+ rfb = ah->ah_rf_banks;
- if (rf == NULL)
+ for (i = 0; i < ah->ah_rf_regs_count; i++) {
+ if (rf_regs[i].index == reg_id) {
+ rfreg = &rf_regs[i];
+ break;
+ }
+ }
+
+ if (rfb == NULL || rfreg == NULL) {
+ ATH5K_PRINTF("Rf register not found!\n");
/* should not happen */
return 0;
+ }
+
+ bank = rfreg->bank;
+ num_bits = rfreg->field.len;
+ first_bit = rfreg->field.pos;
+ col = rfreg->field.col;
+
+ /* first_bit is an offset from bank's
+ * start. Since we have all banks on
+ * the same array, we use this offset
+ * to mark each bank's start */
+ offset = ah->ah_offset[bank];
- if (!(col <= 3 && bits <= 32 && first + bits <= 319)) {
+ /* Boundary check */
+ if (!(col <= 3 && num_bits <= 32 && first_bit + num_bits <= 319)) {
ATH5K_PRINTF("invalid values at offset %u\n", offset);
return 0;
}
- entry = ((first - 1) / 8) + offset;
- position = (first - 1) % 8;
+ entry = ((first_bit - 1) / 8) + offset;
+ position = (first_bit - 1) % 8;
if (set)
- data = ath5k_hw_bitswap(reg, bits);
+ data = ath5k_hw_bitswap(val, num_bits);
+
+ for (bits_shifted = 0, bits_left = num_bits; bits_left > 0;
+ position = 0, entry++) {
+
+ last_bit = (position + bits_left > 8) ? 8 :
+ position + bits_left;
- for (i = shift = 0, left = bits; left > 0; position = 0, entry++, i++) {
- last = (position + left > 8) ? 8 : position + left;
- mask = (((1 << last) - 1) ^ ((1 << position) - 1)) << (col * 8);
+ mask = (((1 << last_bit) - 1) ^ ((1 << position) - 1)) <<
+ (col * 8);
if (set) {
- rf[entry] &= ~mask;
- rf[entry] |= ((data << position) << (col * 8)) & mask;
+ rfb[entry] &= ~mask;
+ rfb[entry] |= ((data << position) << (col * 8)) & mask;
data >>= (8 - position);
} else {
- data = (((rf[entry] & mask) >> (col * 8)) >> position)
- << shift;
- shift += last - position;
+ data |= (((rfb[entry] & mask) >> (col * 8)) >> position)
+ << bits_shifted;
+ bits_shifted += last_bit - position;
}
- left -= 8 - position;
+ bits_left -= 8 - position;
}
- data = set ? 1 : ath5k_hw_bitswap(data, bits);
+ data = set ? 1 : ath5k_hw_bitswap(data, num_bits);
return data;
}
@@ -167,6 +199,7 @@ static u32 ath5k_hw_rf_gainf_corr(struct ath5k_hw *ah)
u32 *rf;
const struct ath5k_gain_opt *go;
const struct ath5k_gain_opt_step *g_step;
+ const struct ath5k_rf_reg *rf_regs;
/* Only RF5112 Rev. 2 supports it */
if ((ah->ah_radio != AR5K_RF5112) ||
@@ -174,6 +207,8 @@ static u32 ath5k_hw_rf_gainf_corr(struct ath5k_hw *ah)
return 0;
go = &rfgain_opt_5112;
+ rf_regs = rf_regs_5112a;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5112a);
g_step = &go->go_step[ah->ah_gain.g_step_idx];
@@ -184,11 +219,11 @@ static u32 ath5k_hw_rf_gainf_corr(struct ath5k_hw *ah)
ah->ah_gain.g_f_corr = 0;
/* No VGA (Variable Gain Amplifier) override, skip */
- if (ath5k_hw_rfregs_op(rf, ah->ah_offset[7], 0, 1, 36, 0, false) != 1)
+ if (ath5k_hw_rfb_op(ah, rf_regs, 0, AR5K_RF_MIXVGA_OVR, false) != 1)
return 0;
/* Mix gain stepping */
- step = ath5k_hw_rfregs_op(rf, ah->ah_offset[7], 0, 4, 32, 0, false);
+ step = ath5k_hw_rfb_op(ah, rf_regs, 0, AR5K_RF_MIXGAIN_STEP, false);
/* Mix gain override */
mix = g_step->gos_param[0];
@@ -217,6 +252,7 @@ static u32 ath5k_hw_rf_gainf_corr(struct ath5k_hw *ah)
* their detection window) so we must ignore it */
static bool ath5k_hw_rf_check_gainf_readback(struct ath5k_hw *ah)
{
+ const struct ath5k_rf_reg *rf_regs;
u32 step, mix_ovr, level[4];
u32 *rf;
@@ -226,8 +262,13 @@ static bool ath5k_hw_rf_check_gainf_readback(struct ath5k_hw *ah)
rf = ah->ah_rf_banks;
if (ah->ah_radio == AR5K_RF5111) {
- step = ath5k_hw_rfregs_op(rf, ah->ah_offset[7], 0, 6, 37, 0,
- false);
+
+ rf_regs = rf_regs_5111;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5111);
+
+ step = ath5k_hw_rfb_op(ah, rf_regs, 0, AR5K_RF_RFGAIN_STEP,
+ false);
+
level[0] = 0;
level[1] = (step == 63) ? 50 : step + 4;
level[2] = (step != 63) ? 64 : level[0];
@@ -238,8 +279,13 @@ static bool ath5k_hw_rf_check_gainf_readback(struct ath5k_hw *ah)
ah->ah_gain.g_low = level[0] +
(step == 63 ? AR5K_GAIN_DYN_ADJUST_LO_MARGIN : 0);
} else {
- mix_ovr = ath5k_hw_rfregs_op(rf, ah->ah_offset[7], 0, 1, 36, 0,
- false);
+
+ rf_regs = rf_regs_5112;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5112);
+
+ mix_ovr = ath5k_hw_rfb_op(ah, rf_regs, 0, AR5K_RF_MIXVGA_OVR,
+ false);
+
level[0] = level[2] = 0;
if (mix_ovr == 1) {
@@ -451,341 +497,320 @@ int ath5k_hw_rfgain_init(struct ath5k_hw *ah, unsigned int freq)
* RF Registers setup *
\********************/
+
/*
- * Read EEPROM Calibration data, modify RF Banks and Initialize RF5111
+ * Setup RF registers by writing rf buffer on hw
*/
-static int ath5k_hw_rf5111_rfregs(struct ath5k_hw *ah,
- struct ieee80211_channel *channel, unsigned int mode)
+int ath5k_hw_rfregs_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
+ unsigned int mode)
{
+ const struct ath5k_rf_reg *rf_regs;
+ const struct ath5k_ini_rfbuffer *ini_rfb;
+ const struct ath5k_gain_opt *go = NULL;
+ const struct ath5k_gain_opt_step *g_step;
struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 *rf;
- const unsigned int rf_size = ARRAY_SIZE(rfb_5111);
- unsigned int i;
- int obdb = -1, bank = -1;
- u32 ee_mode;
+ u8 ee_mode = 0;
+ u32 *rfb;
+ int i, obdb = -1, bank = -1;
- AR5K_ASSERT_ENTRY(mode, AR5K_MODE_MAX);
+ switch (ah->ah_radio) {
+ case AR5K_RF5111:
+ rf_regs = rf_regs_5111;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5111);
+ ini_rfb = rfb_5111;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_5111);
+ go = &rfgain_opt_5111;
+ break;
+ case AR5K_RF5112:
+ if (ah->ah_radio_5ghz_revision >= AR5K_SREV_RAD_5112A) {
+ rf_regs = rf_regs_5112a;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5112a);
+ ini_rfb = rfb_5112a;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_5112a);
+ } else {
+ rf_regs = rf_regs_5112;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5112);
+ ini_rfb = rfb_5112;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_5112);
+ }
+ go = &rfgain_opt_5112;
+ break;
+ case AR5K_RF2413:
+ rf_regs = rf_regs_2413;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_2413);
+ ini_rfb = rfb_2413;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_2413);
+ break;
+ case AR5K_RF2316:
+ rf_regs = rf_regs_2316;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_2316);
+ ini_rfb = rfb_2316;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_2316);
+ break;
+ case AR5K_RF5413:
+ rf_regs = rf_regs_5413;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_5413);
+ ini_rfb = rfb_5413;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_5413);
+ break;
+ case AR5K_RF2317:
+ rf_regs = rf_regs_2425;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_2425);
+ ini_rfb = rfb_2317;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_2317);
+ break;
+ case AR5K_RF2425:
+ rf_regs = rf_regs_2425;
+ ah->ah_rf_regs_count = ARRAY_SIZE(rf_regs_2425);
+ if (ah->ah_mac_srev < AR5K_SREV_AR2417) {
+ ini_rfb = rfb_2425;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_2425);
+ } else {
+ ini_rfb = rfb_2417;
+ ah->ah_rf_banks_size = ARRAY_SIZE(rfb_2417);
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
- rf = ah->ah_rf_banks;
+ /* If it's the first time we set rf buffer, allocate
+ * ah->ah_rf_banks based on ah->ah_rf_banks_size
+ * we set above */
+ if (ah->ah_rf_banks == NULL) {
+ ah->ah_rf_banks = kmalloc(sizeof(u32) * ah->ah_rf_banks_size,
+ GFP_KERNEL);
+ if (ah->ah_rf_banks == NULL) {
+ ATH5K_ERR(ah->ah_sc, "out of memory\n");
+ return -ENOMEM;
+ }
+ }
/* Copy values to modify them */
- for (i = 0; i < rf_size; i++) {
- if (rfb_5111[i].rfb_bank >= AR5K_RF5111_INI_RF_MAX_BANKS) {
+ rfb = ah->ah_rf_banks;
+
+ for (i = 0; i < ah->ah_rf_banks_size; i++) {
+ if (ini_rfb[i].rfb_bank >= AR5K_MAX_RF_BANKS) {
ATH5K_ERR(ah->ah_sc, "invalid bank\n");
return -EINVAL;
}
- if (bank != rfb_5111[i].rfb_bank) {
- bank = rfb_5111[i].rfb_bank;
+ /* Bank changed, write down the offset */
+ if (bank != ini_rfb[i].rfb_bank) {
+ bank = ini_rfb[i].rfb_bank;
ah->ah_offset[bank] = i;
}
- rf[i] = rfb_5111[i].rfb_mode_data[mode];
+ rfb[i] = ini_rfb[i].rfb_mode_data[mode];
}
- /* Modify bank 0 */
+ /* Set Output and Driver bias current (OB/DB) */
if (channel->hw_value & CHANNEL_2GHZ) {
+
if (channel->hw_value & CHANNEL_CCK)
ee_mode = AR5K_EEPROM_MODE_11B;
else
ee_mode = AR5K_EEPROM_MODE_11G;
- obdb = 0;
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[0],
- ee->ee_ob[ee_mode][obdb], 3, 119, 0, true))
- return -EINVAL;
+ /* For RF511X/RF211X combination we
+ * use b_OB and b_DB parameters stored
+ * in eeprom on ee->ee_ob[ee_mode][0]
+ *
+ * For all other chips we use OB/DB for 2Ghz
+ * stored in the b/g modal section just like
+ * 802.11a on ee->ee_ob[ee_mode][1] */
+ if ((ah->ah_radio == AR5K_RF5111) ||
+ (ah->ah_radio == AR5K_RF5112))
+ obdb = 0;
+ else
+ obdb = 1;
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[0],
- ee->ee_ob[ee_mode][obdb], 3, 122, 0, true))
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_ob[ee_mode][obdb],
+ AR5K_RF_OB_2GHZ, true);
- obdb = 1;
- /* Modify bank 6 */
- } else {
- /* For 11a, Turbo and XR */
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_db[ee_mode][obdb],
+ AR5K_RF_DB_2GHZ, true);
+
+ /* RF5111 always needs OB/DB for 5GHz, even if we use 2GHz */
+ } else if ((channel->hw_value & CHANNEL_5GHZ) ||
+ (ah->ah_radio == AR5K_RF5111)) {
+
+ /* For 11a, Turbo and XR we need to choose
+ * OB/DB based on frequency range */
ee_mode = AR5K_EEPROM_MODE_11A;
obdb = channel->center_freq >= 5725 ? 3 :
(channel->center_freq >= 5500 ? 2 :
(channel->center_freq >= 5260 ? 1 :
(channel->center_freq > 4000 ? 0 : -1)));
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_pwd_84, 1, 51, 3, true))
+ if (obdb < 0)
return -EINVAL;
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_pwd_90, 1, 45, 3, true))
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_ob[ee_mode][obdb],
+ AR5K_RF_OB_5GHZ, true);
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- !ee->ee_xpd[ee_mode], 1, 95, 0, true))
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_db[ee_mode][obdb],
+ AR5K_RF_DB_5GHZ, true);
+ }
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_x_gain[ee_mode], 4, 96, 0, true))
- return -EINVAL;
+ g_step = &go->go_step[ah->ah_gain.g_step_idx];
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6], obdb >= 0 ?
- ee->ee_ob[ee_mode][obdb] : 0, 3, 104, 0, true))
- return -EINVAL;
+ /* Bank Modifications (chip-specific) */
+ if (ah->ah_radio == AR5K_RF5111) {
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6], obdb >= 0 ?
- ee->ee_db[ee_mode][obdb] : 0, 3, 107, 0, true))
- return -EINVAL;
+ /* Set gain_F settings according to current step */
+ if (channel->hw_value & CHANNEL_OFDM) {
- /* Modify bank 7 */
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[7],
- ee->ee_i_gain[ee_mode], 6, 29, 0, true))
- return -EINVAL;
+ AR5K_REG_WRITE_BITS(ah, AR5K_PHY_FRAME_CTL,
+ AR5K_PHY_FRAME_CTL_TX_CLIP,
+ g_step->gos_param[0]);
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[7],
- ee->ee_xpd[ee_mode], 1, 4, 0, true))
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[1],
+ AR5K_RF_PWD_90, true);
- /* Write RF values */
- for (i = 0; i < rf_size; i++) {
- AR5K_REG_WAIT(i);
- ath5k_hw_reg_write(ah, rf[i], rfb_5111[i].rfb_ctrl_register);
- }
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[2],
+ AR5K_RF_PWD_84, true);
- ah->ah_gain.g_state = AR5K_RFGAIN_ACTIVE;
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[3],
+ AR5K_RF_RFGAIN_SEL, true);
- return 0;
-}
+ /* We programmed gain_F parameters, switch back
+ * to active state */
+ ah->ah_gain.g_state = AR5K_RFGAIN_ACTIVE;
-/*
- * Read EEPROM Calibration data, modify RF Banks and Initialize RF5112
- */
-static int ath5k_hw_rf5112_rfregs(struct ath5k_hw *ah,
- struct ieee80211_channel *channel, unsigned int mode)
-{
- const struct ath5k_ini_rfbuffer *rf_ini;
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- u32 *rf;
- unsigned int rf_size, i;
- int obdb = -1, bank = -1;
- u32 ee_mode;
+ }
- AR5K_ASSERT_ENTRY(mode, AR5K_MODE_MAX);
+ /* Bank 6/7 setup */
- rf = ah->ah_rf_banks;
+ ath5k_hw_rfb_op(ah, rf_regs, !ee->ee_xpd[ee_mode],
+ AR5K_RF_PWD_XPD, true);
- if (ah->ah_radio_5ghz_revision >= AR5K_SREV_RAD_5112A) {
- rf_ini = rfb_5112a;
- rf_size = ARRAY_SIZE(rfb_5112a);
- } else {
- rf_ini = rfb_5112;
- rf_size = ARRAY_SIZE(rfb_5112);
- }
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_x_gain[ee_mode],
+ AR5K_RF_XPD_GAIN, true);
- /* Copy values to modify them */
- for (i = 0; i < rf_size; i++) {
- if (rf_ini[i].rfb_bank >= AR5K_RF5112_INI_RF_MAX_BANKS) {
- ATH5K_ERR(ah->ah_sc, "invalid bank\n");
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_i_gain[ee_mode],
+ AR5K_RF_GAIN_I, true);
- if (bank != rf_ini[i].rfb_bank) {
- bank = rf_ini[i].rfb_bank;
- ah->ah_offset[bank] = i;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_xpd[ee_mode],
+ AR5K_RF_PLO_SEL, true);
- rf[i] = rf_ini[i].rfb_mode_data[mode];
+ /* TODO: Half/quarter channel support */
}
- /* Modify bank 6 */
- if (channel->hw_value & CHANNEL_2GHZ) {
- if (channel->hw_value & CHANNEL_OFDM)
- ee_mode = AR5K_EEPROM_MODE_11G;
- else
- ee_mode = AR5K_EEPROM_MODE_11B;
- obdb = 0;
+ if (ah->ah_radio == AR5K_RF5112) {
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_ob[ee_mode][obdb], 3, 287, 0, true))
- return -EINVAL;
+ /* Set gain_F settings according to current step */
+ if (channel->hw_value & CHANNEL_OFDM) {
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_ob[ee_mode][obdb], 3, 290, 0, true))
- return -EINVAL;
- } else {
- /* For 11a, Turbo and XR */
- ee_mode = AR5K_EEPROM_MODE_11A;
- obdb = channel->center_freq >= 5725 ? 3 :
- (channel->center_freq >= 5500 ? 2 :
- (channel->center_freq >= 5260 ? 1 :
- (channel->center_freq > 4000 ? 0 : -1)));
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[0],
+ AR5K_RF_MIXGAIN_OVR, true);
- if (obdb == -1)
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[1],
+ AR5K_RF_PWD_138, true);
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_ob[ee_mode][obdb], 3, 279, 0, true))
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[2],
+ AR5K_RF_PWD_137, true);
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_ob[ee_mode][obdb], 3, 282, 0, true))
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[3],
+ AR5K_RF_PWD_136, true);
- ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_x_gain[ee_mode], 2, 270, 0, true);
- ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_x_gain[ee_mode], 2, 257, 0, true);
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[4],
+ AR5K_RF_PWD_132, true);
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[6],
- ee->ee_xpd[ee_mode], 1, 302, 0, true))
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[5],
+ AR5K_RF_PWD_131, true);
- /* Modify bank 7 */
- if (!ath5k_hw_rfregs_op(rf, ah->ah_offset[7],
- ee->ee_i_gain[ee_mode], 6, 14, 0, true))
- return -EINVAL;
+ ath5k_hw_rfb_op(ah, rf_regs, g_step->gos_param[6],
+ AR5K_RF_PWD_130, true);
- /* Write RF values */
- for (i = 0; i < rf_size; i++)
- ath5k_hw_reg_write(ah, rf[i], rf_ini[i].rfb_ctrl_register);
+ /* We programmed gain_F parameters, switch back
+ * to active state */
+ ah->ah_gain.g_state = AR5K_RFGAIN_ACTIVE;
+ }
+ /* Bank 6/7 setup */
- ah->ah_gain.g_state = AR5K_RFGAIN_ACTIVE;
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_xpd[ee_mode],
+ AR5K_RF_XPD_SEL, true);
- return 0;
-}
+ if (ah->ah_radio_5ghz_revision < AR5K_SREV_RAD_5112A) {
+ /* Rev. 1 supports only one xpd */
+ ath5k_hw_rfb_op(ah, rf_regs,
+ ee->ee_x_gain[ee_mode],
+ AR5K_RF_XPD_GAIN, true);
-/*
- * Initialize RF5413/5414 and future chips
- * (until we come up with a better solution)
- */
-static int ath5k_hw_rf5413_rfregs(struct ath5k_hw *ah,
- struct ieee80211_channel *channel, unsigned int mode)
-{
- const struct ath5k_ini_rfbuffer *rf_ini;
- u32 *rf;
- unsigned int rf_size, i;
- int bank = -1;
+ } else {
+ /* TODO: Set high and low gain bits */
+ ath5k_hw_rfb_op(ah, rf_regs,
+ ee->ee_x_gain[ee_mode],
+ AR5K_RF_PD_GAIN_LO, true);
+ ath5k_hw_rfb_op(ah, rf_regs,
+ ee->ee_x_gain[ee_mode],
+ AR5K_RF_PD_GAIN_HI, true);
- AR5K_ASSERT_ENTRY(mode, AR5K_MODE_MAX);
+ /* Lower synth voltage on Rev 2 */
+ ath5k_hw_rfb_op(ah, rf_regs, 2,
+ AR5K_RF_HIGH_VC_CP, true);
- rf = ah->ah_rf_banks;
+ ath5k_hw_rfb_op(ah, rf_regs, 2,
+ AR5K_RF_MID_VC_CP, true);
- switch (ah->ah_radio) {
- case AR5K_RF5413:
- rf_ini = rfb_5413;
- rf_size = ARRAY_SIZE(rfb_5413);
- break;
- case AR5K_RF2413:
- rf_ini = rfb_2413;
- rf_size = ARRAY_SIZE(rfb_2413);
+ ath5k_hw_rfb_op(ah, rf_regs, 2,
+ AR5K_RF_LOW_VC_CP, true);
- if (mode < 2) {
- ATH5K_ERR(ah->ah_sc,
- "invalid channel mode: %i\n", mode);
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, 2,
+ AR5K_RF_PUSH_UP, true);
- break;
- case AR5K_RF2425:
- rf_ini = rfb_2425;
- rf_size = ARRAY_SIZE(rfb_2425);
+ /* Decrease power consumption on 5213+ BaseBand */
+ if (ah->ah_phy_revision >= AR5K_SREV_PHY_5212A) {
+ ath5k_hw_rfb_op(ah, rf_regs, 1,
+ AR5K_RF_PAD2GND, true);
- if (mode < 2) {
- ATH5K_ERR(ah->ah_sc,
- "invalid channel mode: %i\n", mode);
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, 1,
+ AR5K_RF_XB2_LVL, true);
- break;
- default:
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, 1,
+ AR5K_RF_XB5_LVL, true);
- /* Copy values to modify them */
- for (i = 0; i < rf_size; i++) {
- if (rf_ini[i].rfb_bank >= AR5K_RF5112_INI_RF_MAX_BANKS) {
- ATH5K_ERR(ah->ah_sc, "invalid bank\n");
- return -EINVAL;
- }
+ ath5k_hw_rfb_op(ah, rf_regs, 1,
+ AR5K_RF_PWD_167, true);
- if (bank != rf_ini[i].rfb_bank) {
- bank = rf_ini[i].rfb_bank;
- ah->ah_offset[bank] = i;
+ ath5k_hw_rfb_op(ah, rf_regs, 1,
+ AR5K_RF_PWD_166, true);
+ }
}
- rf[i] = rf_ini[i].rfb_mode_data[mode];
- }
+ ath5k_hw_rfb_op(ah, rf_regs, ee->ee_i_gain[ee_mode],
+ AR5K_RF_GAIN_I, true);
- /*
- * After compairing dumps from different cards
- * we get the same RF_BUFFER settings (diff returns
- * 0 lines). It seems that RF_BUFFER settings are static
- * and are written unmodified (no EEPROM stuff
- * is used because calibration data would be
- * different between different cards and would result
- * different RF_BUFFER settings)
- */
+ /* TODO: Half/quarter channel support */
- /* Write RF values */
- for (i = 0; i < rf_size; i++)
- ath5k_hw_reg_write(ah, rf[i], rf_ini[i].rfb_ctrl_register);
+ }
- return 0;
-}
+ if (ah->ah_radio == AR5K_RF5413 &&
+ channel->hw_value & CHANNEL_2GHZ) {
-/*
- * Initialize RF
- */
-int ath5k_hw_rfregs(struct ath5k_hw *ah, struct ieee80211_channel *channel,
- unsigned int mode)
-{
- int (*func)(struct ath5k_hw *, struct ieee80211_channel *, unsigned int);
- int ret;
+ ath5k_hw_rfb_op(ah, rf_regs, 1, AR5K_RF_DERBY_CHAN_SEL_MODE,
+ true);
- switch (ah->ah_radio) {
- case AR5K_RF5111:
- ah->ah_rf_banks_size = sizeof(rfb_5111);
- func = ath5k_hw_rf5111_rfregs;
- break;
- case AR5K_RF5112:
- if (ah->ah_radio_5ghz_revision >= AR5K_SREV_RAD_5112A)
- ah->ah_rf_banks_size = sizeof(rfb_5112a);
- else
- ah->ah_rf_banks_size = sizeof(rfb_5112);
- func = ath5k_hw_rf5112_rfregs;
- break;
- case AR5K_RF5413:
- ah->ah_rf_banks_size = sizeof(rfb_5413);
- func = ath5k_hw_rf5413_rfregs;
- break;
- case AR5K_RF2413:
- ah->ah_rf_banks_size = sizeof(rfb_2413);
- func = ath5k_hw_rf5413_rfregs;
- break;
- case AR5K_RF2425:
- ah->ah_rf_banks_size = sizeof(rfb_2425);
- func = ath5k_hw_rf5413_rfregs;
- break;
- default:
- return -EINVAL;
- }
+ /* Set optimum value for early revisions (on pci-e chips) */
+ if (ah->ah_mac_srev >= AR5K_SREV_AR5424 &&
+ ah->ah_mac_srev < AR5K_SREV_AR5413)
+ ath5k_hw_rfb_op(ah, rf_regs, ath5k_hw_bitswap(6, 3),
+ AR5K_RF_PWD_ICLOBUF_2G, true);
- if (ah->ah_rf_banks == NULL) {
- /* XXX do extra checks? */
- ah->ah_rf_banks = kmalloc(ah->ah_rf_banks_size, GFP_KERNEL);
- if (ah->ah_rf_banks == NULL) {
- ATH5K_ERR(ah->ah_sc, "out of memory\n");
- return -ENOMEM;
- }
}
- ret = func(ah, channel, mode);
+ /* Write RF banks on hw */
+ for (i = 0; i < ah->ah_rf_banks_size; i++) {
+ AR5K_REG_WAIT(i);
+ ath5k_hw_reg_write(ah, rfb[i], ini_rfb[i].rfb_ctrl_register);
+ }
- return ret;
+ return 0;
}
-
-
/**************************\
PHY/RF channel functions
\**************************/
diff --git a/drivers/net/wireless/ath5k/reg.h b/drivers/net/wireless/ath5k/reg.h
index 9189ab1..9aa22ef 100644
--- a/drivers/net/wireless/ath5k/reg.h
+++ b/drivers/net/wireless/ath5k/reg.h
@@ -2101,34 +2101,10 @@
/*
* RF Buffer register
*
- * There are some special control registers on the RF chip
- * that hold various operation settings related mostly to
- * the analog parts (channel, gain adjustment etc).
- *
- * We don't write on those registers directly but
- * we send a data packet on the buffer register and
- * then write on another special register to notify hw
- * to apply the settings. This is done so that control registers
- * can be dynamicaly programmed during operation and the settings
- * are applied faster on the hw.
- *
- * We sent such data packets during rf initialization and channel change
- * through ath5k_hw_rf*_rfregs and ath5k_hw_rf*_channel functions.
- *
- * The data packets we send during initializadion are inside ath5k_ini_rf
- * struct (see ath5k_hw.h) and each one is related to an "rf register bank".
- * We use *rfregs functions to modify them acording to current operation
- * mode and eeprom values and pass them all together to the chip.
- *
* It's obvious from the code that 0x989c is the buffer register but
* for the other special registers that we write to after sending each
* packet, i have no idea. So i'll name them BUFFER_CONTROL_X registers
* for now. It's interesting that they are also used for some other operations.
- *
- * Also check out hw.h and U.S. Patent 6677779 B1 (about buffer
- * registers and control registers):
- *
- * http://www.google.com/patents?id=qNURAAAAEBAJ
*/
#define AR5K_RF_BUFFER 0x989c
diff --git a/drivers/net/wireless/ath5k/reset.c b/drivers/net/wireless/ath5k/reset.c
index f7ce80e..40cf4c7 100644
--- a/drivers/net/wireless/ath5k/reset.c
+++ b/drivers/net/wireless/ath5k/reset.c
@@ -600,7 +600,7 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
/*
* Write RF registers
*/
- ret = ath5k_hw_rfregs(ah, channel, mode);
+ ret = ath5k_hw_rfregs_init(ah, channel, mode);
if (ret)
return ret;
diff --git a/drivers/net/wireless/ath5k/rfbuffer.h b/drivers/net/wireless/ath5k/rfbuffer.h
index 28b3016..e50baff 100644
--- a/drivers/net/wireless/ath5k/rfbuffer.h
+++ b/drivers/net/wireless/ath5k/rfbuffer.h
@@ -17,6 +17,33 @@
*
*/
+
+/*
+ * There are some special registers on the RF chip
+ * that control various operation settings related mostly to
+ * the analog parts (channel, gain adjustment etc).
+ *
+ * We don't write on those registers directly but
+ * we send a data packet on the chip, using a special register,
+ * that holds all the settings we need. After we 've sent the
+ * data packet, we write on another special register to notify hw
+ * to apply the settings. This is done so that control registers
+ * can be dynamicaly programmed during operation and the settings
+ * are applied faster on the hw.
+ *
+ * We call each data packet an "RF Bank" and all the data we write
+ * (all RF Banks) "RF Buffer". This file holds initial RF Buffer
+ * data for the different RF chips, and various info to match RF
+ * Buffer offsets with specific RF registers so that we can access
+ * them. We tweak these settings on rfregs_init function.
+ *
+ * Also check out reg.h and U.S. Patent 6677779 B1 (about buffer
+ * registers and control registers):
+ *
+ * http://www.google.com/patents?id=qNURAAAAEBAJ
+ */
+
+
/*
* Struct to hold default mode specific RF
* register values (RF Banks)
@@ -72,15 +99,28 @@ enum ath5k_rf_regs_idx {
AR5K_RF_XB2_LVL,
AR5K_RF_XB5_LVL,
AR5K_RF_PWD_ICLOBUF_2G,
+ AR5K_RF_PWD_84,
+ AR5K_RF_PWD_90,
+ AR5K_RF_PWD_130,
+ AR5K_RF_PWD_131,
+ AR5K_RF_PWD_132,
+ AR5K_RF_PWD_136,
+ AR5K_RF_PWD_137,
+ AR5K_RF_PWD_138,
+ AR5K_RF_PWD_166,
+ AR5K_RF_PWD_167,
AR5K_RF_DERBY_CHAN_SEL_MODE,
/* BANK 7 */
AR5K_RF_GAIN_I,
AR5K_RF_PLO_SEL,
AR5K_RF_RFGAIN_SEL,
+ AR5K_RF_RFGAIN_STEP,
AR5K_RF_WAIT_S,
AR5K_RF_WAIT_I,
AR5K_RF_MAX_TIME,
+ AR5K_RF_MIXVGA_OVR,
AR5K_RF_MIXGAIN_OVR,
+ AR5K_RF_MIXGAIN_STEP,
AR5K_RF_PD_DELAY_A,
AR5K_RF_PD_DELAY_B,
AR5K_RF_PD_DELAY_XR,
@@ -118,19 +158,21 @@ enum ath5k_rf_regs_idx {
#define AR5K_RF5111_MAX_TIME { 2, 49, 0 }
static const struct ath5k_rf_reg rf_regs_5111[] = {
- {6, AR5K_RF_OB_2GHZ, AR5K_RF5111_OB_2GHZ},
- {6, AR5K_RF_DB_2GHZ, AR5K_RF5111_DB_2GHZ},
- {6, AR5K_RF_OB_5GHZ, AR5K_RF5111_OB_5GHZ},
- {6, AR5K_RF_DB_5GHZ, AR5K_RF5111_DB_5GHZ},
- {6, AR5K_RF_PWD_XPD, AR5K_RF5111_PWD_XPD},
- {6, AR5K_RF_XPD_GAIN, AR5K_RF5111_XPD_GAIN},
- {7, AR5K_RF_GAIN_I, AR5K_RF5111_GAIN_I},
- {7, AR5K_RF_PLO_SEL, AR5K_RF5111_PLO_SEL},
- {7, AR5K_RF_RFGAIN_SEL, AR5K_RF5111_RFGAIN_SEL},
- {7, AR5K_RF_WAIT_S, AR5K_RF5111_WAIT_S},
- {7, AR5K_RF_WAIT_I, AR5K_RF5111_WAIT_I},
- {7, AR5K_RF_MAX_TIME, AR5K_RF5111_MAX_TIME}
-
+ {6, AR5K_RF_OB_2GHZ, AR5K_RF5111_OB_2GHZ},
+ {6, AR5K_RF_DB_2GHZ, AR5K_RF5111_DB_2GHZ},
+ {6, AR5K_RF_OB_5GHZ, AR5K_RF5111_OB_5GHZ},
+ {6, AR5K_RF_DB_5GHZ, AR5K_RF5111_DB_5GHZ},
+ {6, AR5K_RF_PWD_XPD, AR5K_RF5111_PWD_XPD},
+ {6, AR5K_RF_XPD_GAIN, AR5K_RF5111_XPD_GAIN},
+ {6, AR5K_RF_PWD_84, AR5K_RF5111_PWD(84)},
+ {6, AR5K_RF_PWD_90, AR5K_RF5111_PWD(90)},
+ {7, AR5K_RF_GAIN_I, AR5K_RF5111_GAIN_I},
+ {7, AR5K_RF_PLO_SEL, AR5K_RF5111_PLO_SEL},
+ {7, AR5K_RF_RFGAIN_SEL, AR5K_RF5111_RFGAIN_SEL},
+ {7, AR5K_RF_RFGAIN_STEP, AR5K_RF5111_RFGAIN_STEP},
+ {7, AR5K_RF_WAIT_S, AR5K_RF5111_WAIT_S},
+ {7, AR5K_RF_WAIT_I, AR5K_RF5111_WAIT_I},
+ {7, AR5K_RF_MAX_TIME, AR5K_RF5111_MAX_TIME}
};
/* Default mode specific settings */
@@ -273,8 +315,16 @@ static const struct ath5k_rf_reg rf_regs_5112[] = {
{6, AR5K_RF_FIXED_BIAS_B, AR5K_RF5112_FIXED_BIAS_B},
{6, AR5K_RF_XPD_SEL, AR5K_RF5112_XPD_SEL},
{6, AR5K_RF_XPD_GAIN, AR5K_RF5112_XPD_GAIN},
+ {6, AR5K_RF_PWD_130, AR5K_RF5112_PWD(130)},
+ {6, AR5K_RF_PWD_131, AR5K_RF5112_PWD(131)},
+ {6, AR5K_RF_PWD_132, AR5K_RF5112_PWD(132)},
+ {6, AR5K_RF_PWD_136, AR5K_RF5112_PWD(136)},
+ {6, AR5K_RF_PWD_137, AR5K_RF5112_PWD(137)},
+ {6, AR5K_RF_PWD_138, AR5K_RF5112_PWD(138)},
{7, AR5K_RF_GAIN_I, AR5K_RF5112X_GAIN_I},
+ {7, AR5K_RF_MIXVGA_OVR, AR5K_RF5112X_MIXVGA_OVR},
{7, AR5K_RF_MIXGAIN_OVR, AR5K_RF5112X_MIXGAIN_OVR},
+ {7, AR5K_RF_MIXGAIN_STEP, AR5K_RF5112X_MIXGAIN_STEP},
{7, AR5K_RF_PD_DELAY_A, AR5K_RF5112X_PD_DELAY_A},
{7, AR5K_RF_PD_DELAY_B, AR5K_RF5112X_PD_DELAY_B},
{7, AR5K_RF_PD_DELAY_XR, AR5K_RF5112X_PD_DELAY_XR},
@@ -419,7 +469,7 @@ static const struct ath5k_ini_rfbuffer rfb_5112[] = {
#define AR5K_RF5112A_HIGH_VC_CP { 2, 90, 2 }
#define AR5K_RF5112A_MID_VC_CP { 2, 92, 2 }
#define AR5K_RF5112A_LOW_VC_CP { 2, 94, 2 }
-#define AR5K_RF5112A_PUSH_UP { 2, 94, 2 }
+#define AR5K_RF5112A_PUSH_UP { 1, 254, 2 }
/* Power consumption */
#define AR5K_RF5112A_PAD2GND { 1, 281, 1 }
@@ -436,6 +486,14 @@ static const struct ath5k_rf_reg rf_regs_5112a[] = {
{6, AR5K_RF_XPD_SEL, AR5K_RF5112A_XPD_SEL},
{6, AR5K_RF_PD_GAIN_LO, AR5K_RF5112A_PDGAINLO},
{6, AR5K_RF_PD_GAIN_HI, AR5K_RF5112A_PDGAINHI},
+ {6, AR5K_RF_PWD_130, AR5K_RF5112A_PWD(130)},
+ {6, AR5K_RF_PWD_131, AR5K_RF5112A_PWD(131)},
+ {6, AR5K_RF_PWD_132, AR5K_RF5112A_PWD(132)},
+ {6, AR5K_RF_PWD_136, AR5K_RF5112A_PWD(136)},
+ {6, AR5K_RF_PWD_137, AR5K_RF5112A_PWD(137)},
+ {6, AR5K_RF_PWD_138, AR5K_RF5112A_PWD(138)},
+ {6, AR5K_RF_PWD_166, AR5K_RF5112A_PWD(166)},
+ {6, AR5K_RF_PWD_167, AR5K_RF5112A_PWD(167)},
{6, AR5K_RF_HIGH_VC_CP, AR5K_RF5112A_HIGH_VC_CP},
{6, AR5K_RF_MID_VC_CP, AR5K_RF5112A_MID_VC_CP},
{6, AR5K_RF_LOW_VC_CP, AR5K_RF5112A_LOW_VC_CP},
@@ -444,7 +502,9 @@ static const struct ath5k_rf_reg rf_regs_5112a[] = {
{6, AR5K_RF_XB2_LVL, AR5K_RF5112A_XB2_LVL},
{6, AR5K_RF_XB5_LVL, AR5K_RF5112A_XB5_LVL},
{7, AR5K_RF_GAIN_I, AR5K_RF5112X_GAIN_I},
+ {7, AR5K_RF_MIXVGA_OVR, AR5K_RF5112X_MIXVGA_OVR},
{7, AR5K_RF_MIXGAIN_OVR, AR5K_RF5112X_MIXGAIN_OVR},
+ {7, AR5K_RF_MIXGAIN_STEP, AR5K_RF5112X_MIXGAIN_STEP},
{7, AR5K_RF_PD_DELAY_A, AR5K_RF5112X_PD_DELAY_A},
{7, AR5K_RF_PD_DELAY_B, AR5K_RF5112X_PD_DELAY_B},
{7, AR5K_RF_PD_DELAY_XR, AR5K_RF5112X_PD_DELAY_XR},