diff options
Diffstat (limited to 'drivers/staging/vt6656/card.c')
-rw-r--r-- | drivers/staging/vt6656/card.c | 570 |
1 files changed, 138 insertions, 432 deletions
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c index dc3ab10eb630..10f3dfda83b5 100644 --- a/drivers/staging/vt6656/card.c +++ b/drivers/staging/vt6656/card.c @@ -26,7 +26,8 @@ * */ -#include <linux/bits.h> +#include <linux/bitops.h> +#include <linux/errno.h> #include "device.h" #include "card.h" #include "baseband.h" @@ -45,20 +46,12 @@ static const u16 cw_rxbcntsf_off[MAX_RATE] = { 192, 96, 34, 17, 34, 23, 17, 11, 8, 5, 4, 3 }; -/* - * Description: Set NIC media channel - * - * Parameters: - * In: - * pDevice - The adapter to be set - * connection_channel - Channel to be set - * Out: - * none - */ -void vnt_set_channel(struct vnt_private *priv, u32 connection_channel) +int vnt_set_channel(struct vnt_private *priv, u32 connection_channel) { + int ret; + if (connection_channel > CB_MAX_CHANNEL || !connection_channel) - return; + return -EINVAL; /* clear NAV */ vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV); @@ -67,284 +60,73 @@ void vnt_set_channel(struct vnt_private *priv, u32 connection_channel) vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, (BIT(7) | BIT(5) | BIT(4))); - vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNEL, - connection_channel, 0, 0, NULL); - - vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_CHANNEL, - (u8)(connection_channel | 0x80)); -} - -/* - * Description: Get CCK mode basic rate - * - * Parameters: - * In: - * priv - The adapter to be set - * rate_idx - Receiving data rate - * Out: - * none - * - * Return Value: response Control frame rate - * - */ -static u16 vnt_get_cck_rate(struct vnt_private *priv, u16 rate_idx) -{ - u16 ui = rate_idx; - - while (ui > RATE_1M) { - if (priv->basic_rates & (1 << ui)) - return ui; - ui--; - } + ret = vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNEL, + connection_channel, 0, 0, NULL); + if (ret) + return ret; - return RATE_1M; + return vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, MAC_REG_CHANNEL, + (u8)(connection_channel | 0x80)); } -/* - * Description: Get OFDM mode basic rate - * - * Parameters: - * In: - * priv - The adapter to be set - * rate_idx - Receiving data rate - * Out: - * none - * - * Return Value: response Control frame rate - * - */ -static u16 vnt_get_ofdm_rate(struct vnt_private *priv, u16 rate_idx) -{ - u16 ui = rate_idx; - - dev_dbg(&priv->usb->dev, "%s basic rate: %d\n", - __func__, priv->basic_rates); - - if (!vnt_ofdm_min_rate(priv)) { - dev_dbg(&priv->usb->dev, "%s (NO OFDM) %d\n", - __func__, rate_idx); - if (rate_idx > RATE_24M) - rate_idx = RATE_24M; - return rate_idx; - } - - while (ui > RATE_11M) { - if (priv->basic_rates & (1 << ui)) { - dev_dbg(&priv->usb->dev, "%s rate: %d\n", - __func__, ui); - return ui; - } - ui--; - } - - dev_dbg(&priv->usb->dev, "%s basic rate: 24M\n", __func__); +static const u8 vnt_rspinf_b_short_table[] = { + 0x70, 0x00, 0x00, 0x00, 0x38, 0x00, 0x09, 0x00, + 0x15, 0x00, 0x0a, 0x00, 0x0b, 0x00, 0x0b, 0x80 +}; - return RATE_24M; -} +static const u8 vnt_rspinf_b_long_table[] = { + 0x70, 0x00, 0x00, 0x00, 0x38, 0x00, 0x01, 0x00, + 0x15, 0x00, 0x02, 0x00, 0x0b, 0x00, 0x03, 0x80 +}; -/* - * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode. - * - * Parameters: - * In: - * rate - Tx Rate - * bb_type - Tx Packet type - * Out: - * tx_rate - pointer to RSPINF TxRate field - * rsv_time- pointer to RSPINF RsvTime field - * - * Return Value: none - * - */ -static void vnt_calculate_ofdm_rate(u16 rate, u8 bb_type, - u8 *tx_rate, u8 *rsv_time) -{ - switch (rate) { - case RATE_6M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x9b; - *rsv_time = 24; - } else { - *tx_rate = 0x8b; - *rsv_time = 30; - } - break; - case RATE_9M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x9f; - *rsv_time = 16; - } else { - *tx_rate = 0x8f; - *rsv_time = 22; - } - break; - case RATE_12M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x9a; - *rsv_time = 12; - } else { - *tx_rate = 0x8a; - *rsv_time = 18; - } - break; - case RATE_18M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x9e; - *rsv_time = 8; - } else { - *tx_rate = 0x8e; - *rsv_time = 14; - } - break; - case RATE_36M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x9d; - *rsv_time = 4; - } else { - *tx_rate = 0x8d; - *rsv_time = 10; - } - break; - case RATE_48M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x98; - *rsv_time = 4; - } else { - *tx_rate = 0x88; - *rsv_time = 10; - } - break; - case RATE_54M: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x9c; - *rsv_time = 4; - } else { - *tx_rate = 0x8c; - *rsv_time = 10; - } - break; - case RATE_24M: - default: - if (bb_type == BB_TYPE_11A) { - *tx_rate = 0x99; - *rsv_time = 8; - } else { - *tx_rate = 0x89; - *rsv_time = 14; - } - break; - } -} +static const u8 vnt_rspinf_a_table[] = { + 0x9b, 0x18, 0x9f, 0x10, 0x9a, 0x0a, 0x9e, 0x08, 0x99, + 0x08, 0x9d, 0x04, 0x98, 0x04, 0x9c, 0x04, 0x9c, 0x04 +}; -/* - * Description: Set RSPINF - * - * Parameters: - * In: - * pDevice - The adapter to be set - * Out: - * none - * - * Return Value: None. - * - */ +static const u8 vnt_rspinf_gb_table[] = { + 0x8b, 0x1e, 0x8f, 0x16, 0x8a, 0x12, 0x8e, 0x0e, 0x89, + 0x0e, 0x8d, 0x0a, 0x88, 0x0a, 0x8c, 0x0a, 0x8c, 0x0a +}; -void vnt_set_rspinf(struct vnt_private *priv, u8 bb_type) +int vnt_set_rspinf(struct vnt_private *priv, u8 bb_type) { - struct vnt_phy_field phy[4]; - u8 tx_rate[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0}; /* For OFDM */ - u8 rsv_time[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0}; - u8 data[34]; - int i; - - /*RSPINF_b_1*/ - vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_1M), - PK_TYPE_11B, &phy[0]); - - /*RSPINF_b_2*/ - vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_2M), - PK_TYPE_11B, &phy[1]); - - /*RSPINF_b_5*/ - vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_5M), - PK_TYPE_11B, &phy[2]); - - /*RSPINF_b_11*/ - vnt_get_phy_field(priv, 14, vnt_get_cck_rate(priv, RATE_11M), - PK_TYPE_11B, &phy[3]); - - /*RSPINF_a_6*/ - vnt_calculate_ofdm_rate(RATE_6M, bb_type, &tx_rate[0], &rsv_time[0]); - - /*RSPINF_a_9*/ - vnt_calculate_ofdm_rate(RATE_9M, bb_type, &tx_rate[1], &rsv_time[1]); + const u8 *data; + u16 len; + int ret; - /*RSPINF_a_12*/ - vnt_calculate_ofdm_rate(RATE_12M, bb_type, &tx_rate[2], &rsv_time[2]); - - /*RSPINF_a_18*/ - vnt_calculate_ofdm_rate(RATE_18M, bb_type, &tx_rate[3], &rsv_time[3]); - - /*RSPINF_a_24*/ - vnt_calculate_ofdm_rate(RATE_24M, bb_type, &tx_rate[4], &rsv_time[4]); - - /*RSPINF_a_36*/ - vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_36M), - bb_type, &tx_rate[5], &rsv_time[5]); - - /*RSPINF_a_48*/ - vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_48M), - bb_type, &tx_rate[6], &rsv_time[6]); - - /*RSPINF_a_54*/ - vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_54M), - bb_type, &tx_rate[7], &rsv_time[7]); - - /*RSPINF_a_72*/ - vnt_calculate_ofdm_rate(vnt_get_ofdm_rate(priv, RATE_54M), - bb_type, &tx_rate[8], &rsv_time[8]); - - put_unaligned(phy[0].len, (u16 *)&data[0]); - data[2] = phy[0].signal; - data[3] = phy[0].service; - - put_unaligned(phy[1].len, (u16 *)&data[4]); - data[6] = phy[1].signal; - data[7] = phy[1].service; - - put_unaligned(phy[2].len, (u16 *)&data[8]); - data[10] = phy[2].signal; - data[11] = phy[2].service; + if (priv->preamble_type) { + data = vnt_rspinf_b_short_table; + len = ARRAY_SIZE(vnt_rspinf_b_short_table); + } else { + data = vnt_rspinf_b_long_table; + len = ARRAY_SIZE(vnt_rspinf_b_long_table); + } - put_unaligned(phy[3].len, (u16 *)&data[12]); - data[14] = phy[3].signal; - data[15] = phy[3].service; + /* RSPINF_b_1 to RSPINF_b_11 */ + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_RSPINF_B_1, + MESSAGE_REQUEST_MACREG, len, data); + if (ret) + return ret; - for (i = 0; i < 9; i++) { - data[16 + i * 2] = tx_rate[i]; - data[16 + i * 2 + 1] = rsv_time[i]; + if (bb_type == BB_TYPE_11A) { + data = vnt_rspinf_a_table; + len = ARRAY_SIZE(vnt_rspinf_a_table); + } else { + data = vnt_rspinf_gb_table; + len = ARRAY_SIZE(vnt_rspinf_gb_table); } - vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_RSPINF_B_1, - MESSAGE_REQUEST_MACREG, 34, &data[0]); + /* RSPINF_a_6 to RSPINF_a_72 */ + return vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_RSPINF_A_6, + MESSAGE_REQUEST_MACREG, len, data); } -/* - * Description: Update IFS - * - * Parameters: - * In: - * priv - The adapter to be set - * Out: - * none - * - * Return Value: None. - * - */ -void vnt_update_ifs(struct vnt_private *priv) +int vnt_update_ifs(struct vnt_private *priv) { u8 max_min = 0; u8 data[4]; + int ret; if (priv->packet_type == PK_TYPE_11A) { priv->slot = C_SLOT_SHORT; @@ -367,89 +149,36 @@ void vnt_update_ifs(struct vnt_private *priv) priv->eifs = C_EIFS; - switch (priv->rf_type) { - case RF_VT3226D0: - if (priv->bb_type != BB_TYPE_11B) { - priv->sifs -= 1; - priv->difs -= 1; - break; - } - /* fall through */ - case RF_AIROHA7230: - case RF_AL2230: - case RF_AL2230S: - if (priv->bb_type != BB_TYPE_11B) - break; - /* fall through */ - case RF_RFMD2959: - case RF_VT3226: - case RF_VT3342A0: - priv->sifs -= 3; - priv->difs -= 3; - break; - case RF_MAXIM2829: - if (priv->bb_type == BB_TYPE_11A) { - priv->sifs -= 5; - priv->difs -= 5; - } else { - priv->sifs -= 2; - priv->difs -= 2; - } - - break; - } - data[0] = (u8)priv->sifs; data[1] = (u8)priv->difs; data[2] = (u8)priv->eifs; data[3] = (u8)priv->slot; - vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_SIFS, - MESSAGE_REQUEST_MACREG, 4, &data[0]); + ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_SIFS, + MESSAGE_REQUEST_MACREG, 4, &data[0]); + if (ret) + return ret; max_min |= 0xa0; - vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_CWMAXMIN0, - MESSAGE_REQUEST_MACREG, 1, &max_min); + return vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_CWMAXMIN0, + MESSAGE_REQUEST_MACREG, 1, &max_min); } void vnt_update_top_rates(struct vnt_private *priv) { - u8 top_ofdm = RATE_24M, top_cck = RATE_1M; - u8 i; - - /*Determines the highest basic rate.*/ - for (i = RATE_54M; i >= RATE_6M; i--) { - if (priv->basic_rates & (u16)(1 << i)) { - top_ofdm = i; - break; - } - } - - priv->top_ofdm_basic_rate = top_ofdm; + int pos; - for (i = RATE_11M;; i--) { - if (priv->basic_rates & (u16)(1 << i)) { - top_cck = i; - break; - } - if (i == RATE_1M) - break; - } + pos = fls(priv->basic_rates & GENMASK(RATE_54M, RATE_6M)); + priv->top_ofdm_basic_rate = pos ? (pos - 1) : RATE_24M; - priv->top_cck_basic_rate = top_cck; + pos = fls(priv->basic_rates & GENMASK(RATE_11M, RATE_1M)); + priv->top_cck_basic_rate = pos ? (pos - 1) : RATE_1M; } -int vnt_ofdm_min_rate(struct vnt_private *priv) +bool vnt_ofdm_min_rate(struct vnt_private *priv) { - int ii; - - for (ii = RATE_54M; ii >= RATE_6M; ii--) { - if ((priv->basic_rates) & ((u16)BIT(ii))) - return true; - } - - return false; + return priv->basic_rates & GENMASK(RATE_54M, RATE_6M) ? true : false; } u8 vnt_get_pkt_type(struct vnt_private *priv) @@ -481,23 +210,8 @@ u64 vnt_get_tsf_offset(u8 rx_rate, u64 tsf1, u64 tsf2) return tsf1 - tsf2 - (u64)cw_rxbcntsf_off[rx_rate % MAX_RATE]; } -/* - * Description: Sync. TSF counter to BSS - * Get TSF offset and write to HW - * - * Parameters: - * In: - * priv - The adapter to be sync. - * time_stamp - Rx BCN's TSF - * local_tsf - Local TSF - * Out: - * none - * - * Return Value: none - * - */ -void vnt_adjust_tsf(struct vnt_private *priv, u8 rx_rate, - u64 time_stamp, u64 local_tsf) +int vnt_adjust_tsf(struct vnt_private *priv, u8 rx_rate, + u64 time_stamp, u64 local_tsf) { u64 tsf_offset = 0; u8 data[8]; @@ -513,8 +227,8 @@ void vnt_adjust_tsf(struct vnt_private *priv, u8 rx_rate, data[6] = (u8)(tsf_offset >> 48); data[7] = (u8)(tsf_offset >> 56); - vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT, - MESSAGE_REQUEST_TSF, 0, 8, data); + return vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT, + MESSAGE_REQUEST_TSF, 0, 8, data); } /* @@ -589,21 +303,7 @@ u64 vnt_get_next_tbtt(u64 tsf, u16 beacon_interval) return tsf; } -/* - * Description: Set NIC TSF counter for first Beacon time - * Get NEXTTBTT from adjusted TSF and Beacon Interval - * - * Parameters: - * In: - * dwIoBase - IO Base - * beacon_interval - Beacon Interval - * Out: - * none - * - * Return Value: none - * - */ -void vnt_reset_next_tbtt(struct vnt_private *priv, u16 beacon_interval) +int vnt_reset_next_tbtt(struct vnt_private *priv, u16 beacon_interval) { u64 next_tbtt = 0; u8 data[8]; @@ -621,29 +321,15 @@ void vnt_reset_next_tbtt(struct vnt_private *priv, u16 beacon_interval) data[6] = (u8)(next_tbtt >> 48); data[7] = (u8)(next_tbtt >> 56); - vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT, - MESSAGE_REQUEST_TBTT, 0, 8, data); + return vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT, + MESSAGE_REQUEST_TBTT, 0, 8, data); } -/* - * Description: Sync NIC TSF counter for Beacon time - * Get NEXTTBTT and write to HW - * - * Parameters: - * In: - * priv - The adapter to be set - * tsf - Current TSF counter - * beacon_interval - Beacon Interval - * Out: - * none - * - * Return Value: none - * - */ -void vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf, - u16 beacon_interval) +int vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf, + u16 beacon_interval) { u8 data[8]; + int ret; tsf = vnt_get_next_tbtt(tsf, beacon_interval); @@ -656,10 +342,13 @@ void vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf, data[6] = (u8)(tsf >> 48); data[7] = (u8)(tsf >> 56); - vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT, - MESSAGE_REQUEST_TBTT, 0, 8, data); + ret = vnt_control_out(priv, MESSAGE_TYPE_SET_TSFTBTT, + MESSAGE_REQUEST_TBTT, 0, 8, data); + if (ret) + return ret; dev_dbg(&priv->usb->dev, "%s TBTT: %8llx\n", __func__, tsf); + return 0; } /* @@ -723,9 +412,13 @@ int vnt_radio_power_on(struct vnt_private *priv) { int ret = 0; - vnt_exit_deep_sleep(priv); + ret = vnt_exit_deep_sleep(priv); + if (ret) + return ret; - vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_RXON); + ret = vnt_mac_reg_bits_on(priv, MAC_REG_HOSTCR, HOSTCR_RXON); + if (ret) + return ret; switch (priv->rf_type) { case RF_AL2230: @@ -734,56 +427,69 @@ int vnt_radio_power_on(struct vnt_private *priv) case RF_VT3226: case RF_VT3226D0: case RF_VT3342A0: - vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL, - (SOFTPWRCTL_SWPE2 | SOFTPWRCTL_SWPE3)); - break; + ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL, + (SOFTPWRCTL_SWPE2 | + SOFTPWRCTL_SWPE3)); + if (ret) + return ret; } - vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD); - - return ret; + return vnt_mac_reg_bits_off(priv, MAC_REG_GPIOCTL1, GPIO3_INTMD); } -void vnt_set_bss_mode(struct vnt_private *priv) +int vnt_set_bss_mode(struct vnt_private *priv) { - if (priv->rf_type == RF_AIROHA7230 && priv->bb_type == BB_TYPE_11A) - vnt_mac_set_bb_type(priv, BB_TYPE_11G); - else - vnt_mac_set_bb_type(priv, priv->bb_type); + int ret; + unsigned char type = priv->bb_type; + unsigned char data = 0; + unsigned char bb_vga_0 = 0x1c; + unsigned char bb_vga_2_3 = 0x00; - priv->packet_type = vnt_get_pkt_type(priv); + if (priv->rf_type == RF_AIROHA7230 && priv->bb_type == BB_TYPE_11A) + type = BB_TYPE_11G; - if (priv->bb_type == BB_TYPE_11A) - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x03); - else if (priv->bb_type == BB_TYPE_11B) - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x02); - else if (priv->bb_type == BB_TYPE_11G) - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x88, 0x08); + ret = vnt_mac_set_bb_type(priv, type); + if (ret) + return ret; - vnt_update_ifs(priv); - vnt_set_rspinf(priv, (u8)priv->bb_type); + priv->packet_type = vnt_get_pkt_type(priv); if (priv->bb_type == BB_TYPE_11A) { - if (priv->rf_type == RF_AIROHA7230) { - priv->bb_vga[0] = 0x20; + data = 0x03; + bb_vga_0 = 0x20; + bb_vga_2_3 = 0x10; + } else if (priv->bb_type == BB_TYPE_11B) { + data = 0x02; + } else if (priv->bb_type == BB_TYPE_11G) { + data = 0x08; + } - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, - 0xe7, priv->bb_vga[0]); - } + if (data) { + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, + 0x88, data); + if (ret) + return ret; + } - priv->bb_vga[2] = 0x10; - priv->bb_vga[3] = 0x10; - } else { - if (priv->rf_type == RF_AIROHA7230) { - priv->bb_vga[0] = 0x1c; + ret = vnt_update_ifs(priv); + if (ret) + return ret; - vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, - 0xe7, priv->bb_vga[0]); - } + ret = vnt_set_rspinf(priv, priv->bb_type); + if (ret) + return ret; - priv->bb_vga[2] = 0x0; - priv->bb_vga[3] = 0x0; + if (priv->rf_type == RF_AIROHA7230) { + priv->bb_vga[0] = bb_vga_0; + + ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, + 0xe7, priv->bb_vga[0]); + if (ret) + return ret; } - vnt_set_vga_gain_offset(priv, priv->bb_vga[0]); + priv->bb_vga[2] = bb_vga_2_3; + priv->bb_vga[3] = bb_vga_2_3; + + return vnt_set_vga_gain_offset(priv, priv->bb_vga[0]); } |