/*
 * This file is part of wl1271
 *
 * Copyright (C) 2008-2010 Nokia Corporation
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/module.h>
#include <linux/platform_device.h>

#include <linux/err.h>

#include <linux/wl12xx.h>

#include "../wlcore/wlcore.h"
#include "../wlcore/debug.h"
#include "../wlcore/io.h"
#include "../wlcore/acx.h"
#include "../wlcore/tx.h"
#include "../wlcore/rx.h"
#include "../wlcore/io.h"
#include "../wlcore/boot.h"

#include "wl12xx.h"
#include "reg.h"
#include "cmd.h"
#include "acx.h"
#include "debugfs.h"

static char *fref_param;
static char *tcxo_param;

static struct wlcore_conf wl12xx_conf = {
	.sg = {
		.params = {
			[CONF_SG_ACL_BT_MASTER_MIN_BR] = 10,
			[CONF_SG_ACL_BT_MASTER_MAX_BR] = 180,
			[CONF_SG_ACL_BT_SLAVE_MIN_BR] = 10,
			[CONF_SG_ACL_BT_SLAVE_MAX_BR] = 180,
			[CONF_SG_ACL_BT_MASTER_MIN_EDR] = 10,
			[CONF_SG_ACL_BT_MASTER_MAX_EDR] = 80,
			[CONF_SG_ACL_BT_SLAVE_MIN_EDR] = 10,
			[CONF_SG_ACL_BT_SLAVE_MAX_EDR] = 80,
			[CONF_SG_ACL_WLAN_PS_MASTER_BR] = 8,
			[CONF_SG_ACL_WLAN_PS_SLAVE_BR] = 8,
			[CONF_SG_ACL_WLAN_PS_MASTER_EDR] = 20,
			[CONF_SG_ACL_WLAN_PS_SLAVE_EDR] = 20,
			[CONF_SG_ACL_WLAN_ACTIVE_MASTER_MIN_BR] = 20,
			[CONF_SG_ACL_WLAN_ACTIVE_MASTER_MAX_BR] = 35,
			[CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MIN_BR] = 16,
			[CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MAX_BR] = 35,
			[CONF_SG_ACL_WLAN_ACTIVE_MASTER_MIN_EDR] = 32,
			[CONF_SG_ACL_WLAN_ACTIVE_MASTER_MAX_EDR] = 50,
			[CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MIN_EDR] = 28,
			[CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MAX_EDR] = 50,
			[CONF_SG_ACL_ACTIVE_SCAN_WLAN_BR] = 10,
			[CONF_SG_ACL_ACTIVE_SCAN_WLAN_EDR] = 20,
			[CONF_SG_ACL_PASSIVE_SCAN_BT_BR] = 75,
			[CONF_SG_ACL_PASSIVE_SCAN_WLAN_BR] = 15,
			[CONF_SG_ACL_PASSIVE_SCAN_BT_EDR] = 27,
			[CONF_SG_ACL_PASSIVE_SCAN_WLAN_EDR] = 17,
			/* active scan params */
			[CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
			[CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
			[CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
			/* passive scan params */
			[CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP_BR] = 800,
			[CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP_EDR] = 200,
			[CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
			/* passive scan in dual antenna params */
			[CONF_SG_CONSECUTIVE_HV3_IN_PASSIVE_SCAN] = 0,
			[CONF_SG_BCN_HV3_COLLISION_THRESH_IN_PASSIVE_SCAN] = 0,
			[CONF_SG_TX_RX_PROTECTION_BWIDTH_IN_PASSIVE_SCAN] = 0,
			/* general params */
			[CONF_SG_STA_FORCE_PS_IN_BT_SCO] = 1,
			[CONF_SG_ANTENNA_CONFIGURATION] = 0,
			[CONF_SG_BEACON_MISS_PERCENT] = 60,
			[CONF_SG_DHCP_TIME] = 5000,
			[CONF_SG_RXT] = 1200,
			[CONF_SG_TXT] = 1000,
			[CONF_SG_ADAPTIVE_RXT_TXT] = 1,
			[CONF_SG_GENERAL_USAGE_BIT_MAP] = 3,
			[CONF_SG_HV3_MAX_SERVED] = 6,
			[CONF_SG_PS_POLL_TIMEOUT] = 10,
			[CONF_SG_UPSD_TIMEOUT] = 10,
			[CONF_SG_CONSECUTIVE_CTS_THRESHOLD] = 2,
			[CONF_SG_STA_RX_WINDOW_AFTER_DTIM] = 5,
			[CONF_SG_STA_CONNECTION_PROTECTION_TIME] = 30,
			/* AP params */
			[CONF_AP_BEACON_MISS_TX] = 3,
			[CONF_AP_RX_WINDOW_AFTER_BEACON] = 10,
			[CONF_AP_BEACON_WINDOW_INTERVAL] = 2,
			[CONF_AP_CONNECTION_PROTECTION_TIME] = 0,
			[CONF_AP_BT_ACL_VAL_BT_SERVE_TIME] = 25,
			[CONF_AP_BT_ACL_VAL_WL_SERVE_TIME] = 25,
			/* CTS Diluting params */
			[CONF_SG_CTS_DILUTED_BAD_RX_PACKETS_TH] = 0,
			[CONF_SG_CTS_CHOP_IN_DUAL_ANT_SCO_MASTER] = 0,
		},
		.state = CONF_SG_PROTECTIVE,
	},
	.rx = {
		.rx_msdu_life_time           = 512000,
		.packet_detection_threshold  = 0,
		.ps_poll_timeout             = 15,
		.upsd_timeout                = 15,
		.rts_threshold               = IEEE80211_MAX_RTS_THRESHOLD,
		.rx_cca_threshold            = 0,
		.irq_blk_threshold           = 0xFFFF,
		.irq_pkt_threshold           = 0,
		.irq_timeout                 = 600,
		.queue_type                  = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
	},
	.tx = {
		.tx_energy_detection         = 0,
		.sta_rc_conf                 = {
			.enabled_rates       = 0,
			.short_retry_limit   = 10,
			.long_retry_limit    = 10,
			.aflags              = 0,
		},
		.ac_conf_count               = 4,
		.ac_conf                     = {
			[CONF_TX_AC_BE] = {
				.ac          = CONF_TX_AC_BE,
				.cw_min      = 15,
				.cw_max      = 63,
				.aifsn       = 3,
				.tx_op_limit = 0,
			},
			[CONF_TX_AC_BK] = {
				.ac          = CONF_TX_AC_BK,
				.cw_min      = 15,
				.cw_max      = 63,
				.aifsn       = 7,
				.tx_op_limit = 0,
			},
			[CONF_TX_AC_VI] = {
				.ac          = CONF_TX_AC_VI,
				.cw_min      = 15,
				.cw_max      = 63,
				.aifsn       = CONF_TX_AIFS_PIFS,
				.tx_op_limit = 3008,
			},
			[CONF_TX_AC_VO] = {
				.ac          = CONF_TX_AC_VO,
				.cw_min      = 15,
				.cw_max      = 63,
				.aifsn       = CONF_TX_AIFS_PIFS,
				.tx_op_limit = 1504,
			},
		},
		.max_tx_retries = 100,
		.ap_aging_period = 300,
		.tid_conf_count = 4,
		.tid_conf = {
			[CONF_TX_AC_BE] = {
				.queue_id    = CONF_TX_AC_BE,
				.channel_type = CONF_CHANNEL_TYPE_EDCF,
				.tsid        = CONF_TX_AC_BE,
				.ps_scheme   = CONF_PS_SCHEME_LEGACY,
				.ack_policy  = CONF_ACK_POLICY_LEGACY,
				.apsd_conf   = {0, 0},
			},
			[CONF_TX_AC_BK] = {
				.queue_id    = CONF_TX_AC_BK,
				.channel_type = CONF_CHANNEL_TYPE_EDCF,
				.tsid        = CONF_TX_AC_BK,
				.ps_scheme   = CONF_PS_SCHEME_LEGACY,
				.ack_policy  = CONF_ACK_POLICY_LEGACY,
				.apsd_conf   = {0, 0},
			},
			[CONF_TX_AC_VI] = {
				.queue_id    = CONF_TX_AC_VI,
				.channel_type = CONF_CHANNEL_TYPE_EDCF,
				.tsid        = CONF_TX_AC_VI,
				.ps_scheme   = CONF_PS_SCHEME_LEGACY,
				.ack_policy  = CONF_ACK_POLICY_LEGACY,
				.apsd_conf   = {0, 0},
			},
			[CONF_TX_AC_VO] = {
				.queue_id    = CONF_TX_AC_VO,
				.channel_type = CONF_CHANNEL_TYPE_EDCF,
				.tsid        = CONF_TX_AC_VO,
				.ps_scheme   = CONF_PS_SCHEME_LEGACY,
				.ack_policy  = CONF_ACK_POLICY_LEGACY,
				.apsd_conf   = {0, 0},
			},
		},
		.frag_threshold              = IEEE80211_MAX_FRAG_THRESHOLD,
		.tx_compl_timeout            = 700,
		.tx_compl_threshold          = 4,
		.basic_rate                  = CONF_HW_BIT_RATE_1MBPS,
		.basic_rate_5                = CONF_HW_BIT_RATE_6MBPS,
		.tmpl_short_retry_limit      = 10,
		.tmpl_long_retry_limit       = 10,
		.tx_watchdog_timeout         = 5000,
	},
	.conn = {
		.wake_up_event               = CONF_WAKE_UP_EVENT_DTIM,
		.listen_interval             = 1,
		.suspend_wake_up_event       = CONF_WAKE_UP_EVENT_N_DTIM,
		.suspend_listen_interval     = 3,
		.bcn_filt_mode               = CONF_BCN_FILT_MODE_ENABLED,
		.bcn_filt_ie_count           = 3,
		.bcn_filt_ie = {
			[0] = {
				.ie          = WLAN_EID_CHANNEL_SWITCH,
				.rule        = CONF_BCN_RULE_PASS_ON_APPEARANCE,
			},
			[1] = {
				.ie          = WLAN_EID_HT_OPERATION,
				.rule        = CONF_BCN_RULE_PASS_ON_CHANGE,
			},
			[2] = {
				.ie	     = WLAN_EID_ERP_INFO,
				.rule	     = CONF_BCN_RULE_PASS_ON_CHANGE,
			},
		},
		.synch_fail_thold            = 12,
		.bss_lose_timeout            = 400,
		.beacon_rx_timeout           = 10000,
		.broadcast_timeout           = 20000,
		.rx_broadcast_in_ps          = 1,
		.ps_poll_threshold           = 10,
		.bet_enable                  = CONF_BET_MODE_ENABLE,
		.bet_max_consecutive         = 50,
		.psm_entry_retries           = 8,
		.psm_exit_retries            = 16,
		.psm_entry_nullfunc_retries  = 3,
		.dynamic_ps_timeout          = 1500,
		.forced_ps                   = false,
		.keep_alive_interval         = 55000,
		.max_listen_interval         = 20,
		.sta_sleep_auth              = WL1271_PSM_ILLEGAL,
	},
	.itrim = {
		.enable = false,
		.timeout = 50000,
	},
	.pm_config = {
		.host_clk_settling_time = 5000,
		.host_fast_wakeup_support = CONF_FAST_WAKEUP_DISABLE,
	},
	.roam_trigger = {
		.trigger_pacing               = 1,
		.avg_weight_rssi_beacon       = 20,
		.avg_weight_rssi_data         = 10,
		.avg_weight_snr_beacon        = 20,
		.avg_weight_snr_data          = 10,
	},
	.scan = {
		.min_dwell_time_active        = 7500,
		.max_dwell_time_active        = 30000,
		.min_dwell_time_passive       = 100000,
		.max_dwell_time_passive       = 100000,
		.num_probe_reqs               = 2,
		.split_scan_timeout           = 50000,
	},
	.sched_scan = {
		/*
		 * Values are in TU/1000 but since sched scan FW command
		 * params are in TUs rounding up may occur.
		 */
		.base_dwell_time		= 7500,
		.max_dwell_time_delta		= 22500,
		/* based on 250bits per probe @1Mbps */
		.dwell_time_delta_per_probe	= 2000,
		/* based on 250bits per probe @6Mbps (plus a bit more) */
		.dwell_time_delta_per_probe_5	= 350,
		.dwell_time_passive		= 100000,
		.dwell_time_dfs			= 150000,
		.num_probe_reqs			= 2,
		.rssi_threshold			= -90,
		.snr_threshold			= 0,
	},
	.ht = {
		.rx_ba_win_size = 8,
		.tx_ba_win_size = 64,
		.inactivity_timeout = 10000,
		.tx_ba_tid_bitmap = CONF_TX_BA_ENABLED_TID_BITMAP,
	},
	/*
	 * Memory config for wl127x chips is given in the
	 * wl12xx_default_priv_conf struct. The below configuration is
	 * for wl128x chips.
	 */
	.mem = {
		.num_stations                 = 1,
		.ssid_profiles                = 1,
		.rx_block_num                 = 40,
		.tx_min_block_num             = 40,
		.dynamic_memory               = 1,
		.min_req_tx_blocks            = 45,
		.min_req_rx_blocks            = 22,
		.tx_min                       = 27,
	},
	.fm_coex = {
		.enable                       = true,
		.swallow_period               = 5,
		.n_divider_fref_set_1         = 0xff,       /* default */
		.n_divider_fref_set_2         = 12,
		.m_divider_fref_set_1         = 0xffff,
		.m_divider_fref_set_2         = 148,	    /* default */
		.coex_pll_stabilization_time  = 0xffffffff, /* default */
		.ldo_stabilization_time       = 0xffff,     /* default */
		.fm_disturbed_band_margin     = 0xff,       /* default */
		.swallow_clk_diff             = 0xff,       /* default */
	},
	.rx_streaming = {
		.duration                      = 150,
		.queues                        = 0x1,
		.interval                      = 20,
		.always                        = 0,
	},
	.fwlog = {
		.mode                         = WL12XX_FWLOG_ON_DEMAND,
		.mem_blocks                   = 2,
		.severity                     = 0,
		.timestamp                    = WL12XX_FWLOG_TIMESTAMP_DISABLED,
		.output                       = WL12XX_FWLOG_OUTPUT_HOST,
		.threshold                    = 0,
	},
	.rate = {
		.rate_retry_score = 32000,
		.per_add = 8192,
		.per_th1 = 2048,
		.per_th2 = 4096,
		.max_per = 8100,
		.inverse_curiosity_factor = 5,
		.tx_fail_low_th = 4,
		.tx_fail_high_th = 10,
		.per_alpha_shift = 4,
		.per_add_shift = 13,
		.per_beta1_shift = 10,
		.per_beta2_shift = 8,
		.rate_check_up = 2,
		.rate_check_down = 12,
		.rate_retry_policy = {
			0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00,
		},
	},
	.hangover = {
		.recover_time               = 0,
		.hangover_period            = 20,
		.dynamic_mode               = 1,
		.early_termination_mode     = 1,
		.max_period                 = 20,
		.min_period                 = 1,
		.increase_delta             = 1,
		.decrease_delta             = 2,
		.quiet_time                 = 4,
		.increase_time              = 1,
		.window_size                = 16,
	},
};

static struct wl12xx_priv_conf wl12xx_default_priv_conf = {
	.rf = {
		.tx_per_channel_power_compensation_2 = {
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		},
		.tx_per_channel_power_compensation_5 = {
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		},
	},
	.mem_wl127x = {
		.num_stations                 = 1,
		.ssid_profiles                = 1,
		.rx_block_num                 = 70,
		.tx_min_block_num             = 40,
		.dynamic_memory               = 1,
		.min_req_tx_blocks            = 100,
		.min_req_rx_blocks            = 22,
		.tx_min                       = 27,
	},

};

#define WL12XX_TX_HW_BLOCK_SPARE_DEFAULT        1
#define WL12XX_TX_HW_BLOCK_GEM_SPARE            2
#define WL12XX_TX_HW_BLOCK_SIZE                 252

static const u8 wl12xx_rate_to_idx_2ghz[] = {
	/* MCS rates are used only with 11n */
	7,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS7_SGI */
	7,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS7 */
	6,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS6 */
	5,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS5 */
	4,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS4 */
	3,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS3 */
	2,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS2 */
	1,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS1 */
	0,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS0 */

	11,                            /* WL12XX_CONF_HW_RXTX_RATE_54   */
	10,                            /* WL12XX_CONF_HW_RXTX_RATE_48   */
	9,                             /* WL12XX_CONF_HW_RXTX_RATE_36   */
	8,                             /* WL12XX_CONF_HW_RXTX_RATE_24   */

	/* TI-specific rate */
	CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_22   */

	7,                             /* WL12XX_CONF_HW_RXTX_RATE_18   */
	6,                             /* WL12XX_CONF_HW_RXTX_RATE_12   */
	3,                             /* WL12XX_CONF_HW_RXTX_RATE_11   */
	5,                             /* WL12XX_CONF_HW_RXTX_RATE_9    */
	4,                             /* WL12XX_CONF_HW_RXTX_RATE_6    */
	2,                             /* WL12XX_CONF_HW_RXTX_RATE_5_5  */
	1,                             /* WL12XX_CONF_HW_RXTX_RATE_2    */
	0                              /* WL12XX_CONF_HW_RXTX_RATE_1    */
};

static const u8 wl12xx_rate_to_idx_5ghz[] = {
	/* MCS rates are used only with 11n */
	7,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS7_SGI */
	7,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS7 */
	6,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS6 */
	5,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS5 */
	4,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS4 */
	3,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS3 */
	2,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS2 */
	1,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS1 */
	0,                             /* WL12XX_CONF_HW_RXTX_RATE_MCS0 */

	7,                             /* WL12XX_CONF_HW_RXTX_RATE_54   */
	6,                             /* WL12XX_CONF_HW_RXTX_RATE_48   */
	5,                             /* WL12XX_CONF_HW_RXTX_RATE_36   */
	4,                             /* WL12XX_CONF_HW_RXTX_RATE_24   */

	/* TI-specific rate */
	CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_22   */

	3,                             /* WL12XX_CONF_HW_RXTX_RATE_18   */
	2,                             /* WL12XX_CONF_HW_RXTX_RATE_12   */
	CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_11   */
	1,                             /* WL12XX_CONF_HW_RXTX_RATE_9    */
	0,                             /* WL12XX_CONF_HW_RXTX_RATE_6    */
	CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_5_5  */
	CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_2    */
	CONF_HW_RXTX_RATE_UNSUPPORTED  /* WL12XX_CONF_HW_RXTX_RATE_1    */
};

static const u8 *wl12xx_band_rate_to_idx[] = {
	[IEEE80211_BAND_2GHZ] = wl12xx_rate_to_idx_2ghz,
	[IEEE80211_BAND_5GHZ] = wl12xx_rate_to_idx_5ghz
};

enum wl12xx_hw_rates {
	WL12XX_CONF_HW_RXTX_RATE_MCS7_SGI = 0,
	WL12XX_CONF_HW_RXTX_RATE_MCS7,
	WL12XX_CONF_HW_RXTX_RATE_MCS6,
	WL12XX_CONF_HW_RXTX_RATE_MCS5,
	WL12XX_CONF_HW_RXTX_RATE_MCS4,
	WL12XX_CONF_HW_RXTX_RATE_MCS3,
	WL12XX_CONF_HW_RXTX_RATE_MCS2,
	WL12XX_CONF_HW_RXTX_RATE_MCS1,
	WL12XX_CONF_HW_RXTX_RATE_MCS0,
	WL12XX_CONF_HW_RXTX_RATE_54,
	WL12XX_CONF_HW_RXTX_RATE_48,
	WL12XX_CONF_HW_RXTX_RATE_36,
	WL12XX_CONF_HW_RXTX_RATE_24,
	WL12XX_CONF_HW_RXTX_RATE_22,
	WL12XX_CONF_HW_RXTX_RATE_18,
	WL12XX_CONF_HW_RXTX_RATE_12,
	WL12XX_CONF_HW_RXTX_RATE_11,
	WL12XX_CONF_HW_RXTX_RATE_9,
	WL12XX_CONF_HW_RXTX_RATE_6,
	WL12XX_CONF_HW_RXTX_RATE_5_5,
	WL12XX_CONF_HW_RXTX_RATE_2,
	WL12XX_CONF_HW_RXTX_RATE_1,
	WL12XX_CONF_HW_RXTX_RATE_MAX,
};

static struct wlcore_partition_set wl12xx_ptable[PART_TABLE_LEN] = {
	[PART_DOWN] = {
		.mem = {
			.start = 0x00000000,
			.size  = 0x000177c0
		},
		.reg = {
			.start = REGISTERS_BASE,
			.size  = 0x00008800
		},
		.mem2 = {
			.start = 0x00000000,
			.size  = 0x00000000
		},
		.mem3 = {
			.start = 0x00000000,
			.size  = 0x00000000
		},
	},

	[PART_BOOT] = { /* in wl12xx we can use a mix of work and down
			 * partition here */
		.mem = {
			.start = 0x00040000,
			.size  = 0x00014fc0
		},
		.reg = {
			.start = REGISTERS_BASE,
			.size  = 0x00008800
		},
		.mem2 = {
			.start = 0x00000000,
			.size  = 0x00000000
		},
		.mem3 = {
			.start = 0x00000000,
			.size  = 0x00000000
		},
	},

	[PART_WORK] = {
		.mem = {
			.start = 0x00040000,
			.size  = 0x00014fc0
		},
		.reg = {
			.start = REGISTERS_BASE,
			.size  = 0x0000a000
		},
		.mem2 = {
			.start = 0x003004f8,
			.size  = 0x00000004
		},
		.mem3 = {
			.start = 0x00040404,
			.size  = 0x00000000
		},
	},

	[PART_DRPW] = {
		.mem = {
			.start = 0x00040000,
			.size  = 0x00014fc0
		},
		.reg = {
			.start = DRPW_BASE,
			.size  = 0x00006000
		},
		.mem2 = {
			.start = 0x00000000,
			.size  = 0x00000000
		},
		.mem3 = {
			.start = 0x00000000,
			.size  = 0x00000000
		}
	}
};

static const int wl12xx_rtable[REG_TABLE_LEN] = {
	[REG_ECPU_CONTROL]		= WL12XX_REG_ECPU_CONTROL,
	[REG_INTERRUPT_NO_CLEAR]	= WL12XX_REG_INTERRUPT_NO_CLEAR,
	[REG_INTERRUPT_ACK]		= WL12XX_REG_INTERRUPT_ACK,
	[REG_COMMAND_MAILBOX_PTR]	= WL12XX_REG_COMMAND_MAILBOX_PTR,
	[REG_EVENT_MAILBOX_PTR]		= WL12XX_REG_EVENT_MAILBOX_PTR,
	[REG_INTERRUPT_TRIG]		= WL12XX_REG_INTERRUPT_TRIG,
	[REG_INTERRUPT_MASK]		= WL12XX_REG_INTERRUPT_MASK,
	[REG_PC_ON_RECOVERY]		= WL12XX_SCR_PAD4,
	[REG_CHIP_ID_B]			= WL12XX_CHIP_ID_B,
	[REG_CMD_MBOX_ADDRESS]		= WL12XX_CMD_MBOX_ADDRESS,

	/* data access memory addresses, used with partition translation */
	[REG_SLV_MEM_DATA]		= WL1271_SLV_MEM_DATA,
	[REG_SLV_REG_DATA]		= WL1271_SLV_REG_DATA,

	/* raw data access memory addresses */
	[REG_RAW_FW_STATUS_ADDR]	= FW_STATUS_ADDR,
};

/* TODO: maybe move to a new header file? */
#define WL127X_FW_NAME_MULTI	"ti-connectivity/wl127x-fw-5-mr.bin"
#define WL127X_FW_NAME_SINGLE	"ti-connectivity/wl127x-fw-5-sr.bin"
#define WL127X_PLT_FW_NAME	"ti-connectivity/wl127x-fw-5-plt.bin"

#define WL128X_FW_NAME_MULTI	"ti-connectivity/wl128x-fw-5-mr.bin"
#define WL128X_FW_NAME_SINGLE	"ti-connectivity/wl128x-fw-5-sr.bin"
#define WL128X_PLT_FW_NAME	"ti-connectivity/wl128x-fw-5-plt.bin"

static int wl127x_prepare_read(struct wl1271 *wl, u32 rx_desc, u32 len)
{
	int ret;

	if (wl->chip.id != CHIP_ID_1283_PG20) {
		struct wl1271_acx_mem_map *wl_mem_map = wl->target_mem_map;
		struct wl127x_rx_mem_pool_addr rx_mem_addr;

		/*
		 * Choose the block we want to read
		 * For aggregated packets, only the first memory block
		 * should be retrieved. The FW takes care of the rest.
		 */
		u32 mem_block = rx_desc & RX_MEM_BLOCK_MASK;

		rx_mem_addr.addr = (mem_block << 8) +
			le32_to_cpu(wl_mem_map->packet_memory_pool_start);

		rx_mem_addr.addr_extra = rx_mem_addr.addr + 4;

		ret = wlcore_write(wl, WL1271_SLV_REG_DATA, &rx_mem_addr,
				   sizeof(rx_mem_addr), false);
		if (ret < 0)
			return ret;
	}

	return 0;
}

static int wl12xx_identify_chip(struct wl1271 *wl)
{
	int ret = 0;

	switch (wl->chip.id) {
	case CHIP_ID_1271_PG10:
		wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
			       wl->chip.id);

		wl->quirks |= WLCORE_QUIRK_LEGACY_NVS |
			      WLCORE_QUIRK_DUAL_PROBE_TMPL |
			      WLCORE_QUIRK_TKIP_HEADER_SPACE;
		wl->sr_fw_name = WL127X_FW_NAME_SINGLE;
		wl->mr_fw_name = WL127X_FW_NAME_MULTI;
		memcpy(&wl->conf.mem, &wl12xx_default_priv_conf.mem_wl127x,
		       sizeof(wl->conf.mem));

		/* read data preparation is only needed by wl127x */
		wl->ops->prepare_read = wl127x_prepare_read;

		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER, WL127X_IFTYPE_VER,
				      WL127X_MAJOR_VER, WL127X_SUBTYPE_VER,
				      WL127X_MINOR_VER);
		break;

	case CHIP_ID_1271_PG20:
		wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
			     wl->chip.id);

		wl->quirks |= WLCORE_QUIRK_LEGACY_NVS |
			      WLCORE_QUIRK_DUAL_PROBE_TMPL |
			      WLCORE_QUIRK_TKIP_HEADER_SPACE;
		wl->plt_fw_name = WL127X_PLT_FW_NAME;
		wl->sr_fw_name = WL127X_FW_NAME_SINGLE;
		wl->mr_fw_name = WL127X_FW_NAME_MULTI;
		memcpy(&wl->conf.mem, &wl12xx_default_priv_conf.mem_wl127x,
		       sizeof(wl->conf.mem));

		/* read data preparation is only needed by wl127x */
		wl->ops->prepare_read = wl127x_prepare_read;

		wlcore_set_min_fw_ver(wl, WL127X_CHIP_VER, WL127X_IFTYPE_VER,
				      WL127X_MAJOR_VER, WL127X_SUBTYPE_VER,
				      WL127X_MINOR_VER);
		break;

	case CHIP_ID_1283_PG20:
		wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
			     wl->chip.id);
		wl->plt_fw_name = WL128X_PLT_FW_NAME;
		wl->sr_fw_name = WL128X_FW_NAME_SINGLE;
		wl->mr_fw_name = WL128X_FW_NAME_MULTI;

		/* wl128x requires TX blocksize alignment */
		wl->quirks |= WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN |
			      WLCORE_QUIRK_DUAL_PROBE_TMPL |
			      WLCORE_QUIRK_TKIP_HEADER_SPACE;

		wlcore_set_min_fw_ver(wl, WL128X_CHIP_VER, WL128X_IFTYPE_VER,
				      WL128X_MAJOR_VER, WL128X_SUBTYPE_VER,
				      WL128X_MINOR_VER);
		break;
	case CHIP_ID_1283_PG10:
	default:
		wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
		ret = -ENODEV;
		goto out;
	}

out:
	return ret;
}

static int __must_check wl12xx_top_reg_write(struct wl1271 *wl, int addr,
					     u16 val)
{
	int ret;

	/* write address >> 1 + 0x30000 to OCP_POR_CTR */
	addr = (addr >> 1) + 0x30000;
	ret = wlcore_write32(wl, WL12XX_OCP_POR_CTR, addr);
	if (ret < 0)
		goto out;

	/* write value to OCP_POR_WDATA */
	ret = wlcore_write32(wl, WL12XX_OCP_DATA_WRITE, val);
	if (ret < 0)
		goto out;

	/* write 1 to OCP_CMD */
	ret = wlcore_write32(wl, WL12XX_OCP_CMD, OCP_CMD_WRITE);
	if (ret < 0)
		goto out;

out:
	return ret;
}

static int __must_check wl12xx_top_reg_read(struct wl1271 *wl, int addr,
					    u16 *out)
{
	u32 val;
	int timeout = OCP_CMD_LOOP;
	int ret;

	/* write address >> 1 + 0x30000 to OCP_POR_CTR */
	addr = (addr >> 1) + 0x30000;
	ret = wlcore_write32(wl, WL12XX_OCP_POR_CTR, addr);
	if (ret < 0)
		return ret;

	/* write 2 to OCP_CMD */
	ret = wlcore_write32(wl, WL12XX_OCP_CMD, OCP_CMD_READ);
	if (ret < 0)
		return ret;

	/* poll for data ready */
	do {
		ret = wlcore_read32(wl, WL12XX_OCP_DATA_READ, &val);
		if (ret < 0)
			return ret;
	} while (!(val & OCP_READY_MASK) && --timeout);

	if (!timeout) {
		wl1271_warning("Top register access timed out.");
		return -ETIMEDOUT;
	}

	/* check data status and return if OK */
	if ((val & OCP_STATUS_MASK) != OCP_STATUS_OK) {
		wl1271_warning("Top register access returned error.");
		return -EIO;
	}

	if (out)
		*out = val & 0xffff;

	return 0;
}

static int wl128x_switch_tcxo_to_fref(struct wl1271 *wl)
{
	u16 spare_reg;
	int ret;

	/* Mask bits [2] & [8:4] in the sys_clk_cfg register */
	ret = wl12xx_top_reg_read(wl, WL_SPARE_REG, &spare_reg);
	if (ret < 0)
		return ret;

	if (spare_reg == 0xFFFF)
		return -EFAULT;
	spare_reg |= (BIT(3) | BIT(5) | BIT(6));
	ret = wl12xx_top_reg_write(wl, WL_SPARE_REG, spare_reg);
	if (ret < 0)
		return ret;

	/* Enable FREF_CLK_REQ & mux MCS and coex PLLs to FREF */
	ret = wl12xx_top_reg_write(wl, SYS_CLK_CFG_REG,
				   WL_CLK_REQ_TYPE_PG2 | MCS_PLL_CLK_SEL_FREF);
	if (ret < 0)
		return ret;

	/* Delay execution for 15msec, to let the HW settle */
	mdelay(15);

	return 0;
}

static bool wl128x_is_tcxo_valid(struct wl1271 *wl)
{
	u16 tcxo_detection;
	int ret;

	ret = wl12xx_top_reg_read(wl, TCXO_CLK_DETECT_REG, &tcxo_detection);
	if (ret < 0)
		return false;

	if (tcxo_detection & TCXO_DET_FAILED)
		return false;

	return true;
}

static bool wl128x_is_fref_valid(struct wl1271 *wl)
{
	u16 fref_detection;
	int ret;

	ret = wl12xx_top_reg_read(wl, FREF_CLK_DETECT_REG, &fref_detection);
	if (ret < 0)
		return false;

	if (fref_detection & FREF_CLK_DETECT_FAIL)
		return false;

	return true;
}

static int wl128x_manually_configure_mcs_pll(struct wl1271 *wl)
{
	int ret;

	ret = wl12xx_top_reg_write(wl, MCS_PLL_M_REG, MCS_PLL_M_REG_VAL);
	if (ret < 0)
		goto out;

	ret = wl12xx_top_reg_write(wl, MCS_PLL_N_REG, MCS_PLL_N_REG_VAL);
	if (ret < 0)
		goto out;

	ret = wl12xx_top_reg_write(wl, MCS_PLL_CONFIG_REG,
				   MCS_PLL_CONFIG_REG_VAL);

out:
	return ret;
}

static int wl128x_configure_mcs_pll(struct wl1271 *wl, int clk)
{
	u16 spare_reg;
	u16 pll_config;
	u8 input_freq;
	struct wl12xx_priv *priv = wl->priv;
	int ret;

	/* Mask bits [3:1] in the sys_clk_cfg register */
	ret = wl12xx_top_reg_read(wl, WL_SPARE_REG, &spare_reg);
	if (ret < 0)
		return ret;

	if (spare_reg == 0xFFFF)
		return -EFAULT;
	spare_reg |= BIT(2);
	ret = wl12xx_top_reg_write(wl, WL_SPARE_REG, spare_reg);
	if (ret < 0)
		return ret;

	/* Handle special cases of the TCXO clock */
	if (priv->tcxo_clock == WL12XX_TCXOCLOCK_16_8 ||
	    priv->tcxo_clock == WL12XX_TCXOCLOCK_33_6)
		return wl128x_manually_configure_mcs_pll(wl);

	/* Set the input frequency according to the selected clock source */
	input_freq = (clk & 1) + 1;

	ret = wl12xx_top_reg_read(wl, MCS_PLL_CONFIG_REG, &pll_config);
	if (ret < 0)
		return ret;

	if (pll_config == 0xFFFF)
		return -EFAULT;
	pll_config |= (input_freq << MCS_SEL_IN_FREQ_SHIFT);
	pll_config |= MCS_PLL_ENABLE_HP;
	ret = wl12xx_top_reg_write(wl, MCS_PLL_CONFIG_REG, pll_config);

	return ret;
}

/*
 * WL128x has two clocks input - TCXO and FREF.
 * TCXO is the main clock of the device, while FREF is used to sync
 * between the GPS and the cellular modem.
 * In cases where TCXO is 32.736MHz or 16.368MHz, the FREF will be used
 * as the WLAN/BT main clock.
 */
static int wl128x_boot_clk(struct wl1271 *wl, int *selected_clock)
{
	struct wl12xx_priv *priv = wl->priv;
	u16 sys_clk_cfg;
	int ret;

	/* For XTAL-only modes, FREF will be used after switching from TCXO */
	if (priv->ref_clock == WL12XX_REFCLOCK_26_XTAL ||
	    priv->ref_clock == WL12XX_REFCLOCK_38_XTAL) {
		if (!wl128x_switch_tcxo_to_fref(wl))
			return -EINVAL;
		goto fref_clk;
	}

	/* Query the HW, to determine which clock source we should use */
	ret = wl12xx_top_reg_read(wl, SYS_CLK_CFG_REG, &sys_clk_cfg);
	if (ret < 0)
		return ret;

	if (sys_clk_cfg == 0xFFFF)
		return -EINVAL;
	if (sys_clk_cfg & PRCM_CM_EN_MUX_WLAN_FREF)
		goto fref_clk;

	/* If TCXO is either 32.736MHz or 16.368MHz, switch to FREF */
	if (priv->tcxo_clock == WL12XX_TCXOCLOCK_16_368 ||
	    priv->tcxo_clock == WL12XX_TCXOCLOCK_32_736) {
		if (!wl128x_switch_tcxo_to_fref(wl))
			return -EINVAL;
		goto fref_clk;
	}

	/* TCXO clock is selected */
	if (!wl128x_is_tcxo_valid(wl))
		return -EINVAL;
	*selected_clock = priv->tcxo_clock;
	goto config_mcs_pll;

fref_clk:
	/* FREF clock is selected */
	if (!wl128x_is_fref_valid(wl))
		return -EINVAL;
	*selected_clock = priv->ref_clock;

config_mcs_pll:
	return wl128x_configure_mcs_pll(wl, *selected_clock);
}

static int wl127x_boot_clk(struct wl1271 *wl)
{
	struct wl12xx_priv *priv = wl->priv;
	u32 pause;
	u32 clk;
	int ret;

	if (WL127X_PG_GET_MAJOR(wl->hw_pg_ver) < 3)
		wl->quirks |= WLCORE_QUIRK_END_OF_TRANSACTION;

	if (priv->ref_clock == CONF_REF_CLK_19_2_E ||
	    priv->ref_clock == CONF_REF_CLK_38_4_E ||
	    priv->ref_clock == CONF_REF_CLK_38_4_M_XTAL)
		/* ref clk: 19.2/38.4/38.4-XTAL */
		clk = 0x3;
	else if (priv->ref_clock == CONF_REF_CLK_26_E ||
		 priv->ref_clock == CONF_REF_CLK_26_M_XTAL ||
		 priv->ref_clock == CONF_REF_CLK_52_E)
		/* ref clk: 26/52 */
		clk = 0x5;
	else
		return -EINVAL;

	if (priv->ref_clock != CONF_REF_CLK_19_2_E) {
		u16 val;
		/* Set clock type (open drain) */
		ret = wl12xx_top_reg_read(wl, OCP_REG_CLK_TYPE, &val);
		if (ret < 0)
			goto out;

		val &= FREF_CLK_TYPE_BITS;
		ret = wl12xx_top_reg_write(wl, OCP_REG_CLK_TYPE, val);
		if (ret < 0)
			goto out;

		/* Set clock pull mode (no pull) */
		ret = wl12xx_top_reg_read(wl, OCP_REG_CLK_PULL, &val);
		if (ret < 0)
			goto out;

		val |= NO_PULL;
		ret = wl12xx_top_reg_write(wl, OCP_REG_CLK_PULL, val);
		if (ret < 0)
			goto out;
	} else {
		u16 val;
		/* Set clock polarity */
		ret = wl12xx_top_reg_read(wl, OCP_REG_CLK_POLARITY, &val);
		if (ret < 0)
			goto out;

		val &= FREF_CLK_POLARITY_BITS;
		val |= CLK_REQ_OUTN_SEL;
		ret = wl12xx_top_reg_write(wl, OCP_REG_CLK_POLARITY, val);
		if (ret < 0)
			goto out;
	}

	ret = wlcore_write32(wl, WL12XX_PLL_PARAMETERS, clk);
	if (ret < 0)
		goto out;

	ret = wlcore_read32(wl, WL12XX_PLL_PARAMETERS, &pause);
	if (ret < 0)
		goto out;

	wl1271_debug(DEBUG_BOOT, "pause1 0x%x", pause);

	pause &= ~(WU_COUNTER_PAUSE_VAL);
	pause |= WU_COUNTER_PAUSE_VAL;
	ret = wlcore_write32(wl, WL12XX_WU_COUNTER_PAUSE, pause);

out:
	return ret;
}

static int wl1271_boot_soft_reset(struct wl1271 *wl)
{
	unsigned long timeout;
	u32 boot_data;
	int ret = 0;

	/* perform soft reset */
	ret = wlcore_write32(wl, WL12XX_SLV_SOFT_RESET, ACX_SLV_SOFT_RESET_BIT);
	if (ret < 0)
		goto out;

	/* SOFT_RESET is self clearing */
	timeout = jiffies + usecs_to_jiffies(SOFT_RESET_MAX_TIME);
	while (1) {
		ret = wlcore_read32(wl, WL12XX_SLV_SOFT_RESET, &boot_data);
		if (ret < 0)
			goto out;

		wl1271_debug(DEBUG_BOOT, "soft reset bootdata 0x%x", boot_data);
		if ((boot_data & ACX_SLV_SOFT_RESET_BIT) == 0)
			break;

		if (time_after(jiffies, timeout)) {
			/* 1.2 check pWhalBus->uSelfClearTime if the
			 * timeout was reached */
			wl1271_error("soft reset timeout");
			return -1;
		}

		udelay(SOFT_RESET_STALL_TIME);
	}

	/* disable Rx/Tx */
	ret = wlcore_write32(wl, WL12XX_ENABLE, 0x0);
	if (ret < 0)
		goto out;

	/* disable auto calibration on start*/
	ret = wlcore_write32(wl, WL12XX_SPARE_A2, 0xffff);

out:
	return ret;
}

static int wl12xx_pre_boot(struct wl1271 *wl)
{
	struct wl12xx_priv *priv = wl->priv;
	int ret = 0;
	u32 clk;
	int selected_clock = -1;

	if (wl->chip.id == CHIP_ID_1283_PG20) {
		ret = wl128x_boot_clk(wl, &selected_clock);
		if (ret < 0)
			goto out;
	} else {
		ret = wl127x_boot_clk(wl);
		if (ret < 0)
			goto out;
	}

	/* Continue the ELP wake up sequence */
	ret = wlcore_write32(wl, WL12XX_WELP_ARM_COMMAND, WELP_ARM_COMMAND_VAL);
	if (ret < 0)
		goto out;

	udelay(500);

	ret = wlcore_set_partition(wl, &wl->ptable[PART_DRPW]);
	if (ret < 0)
		goto out;

	/* Read-modify-write DRPW_SCRATCH_START register (see next state)
	   to be used by DRPw FW. The RTRIM value will be added by the FW
	   before taking DRPw out of reset */

	ret = wlcore_read32(wl, WL12XX_DRPW_SCRATCH_START, &clk);
	if (ret < 0)
		goto out;

	wl1271_debug(DEBUG_BOOT, "clk2 0x%x", clk);

	if (wl->chip.id == CHIP_ID_1283_PG20)
		clk |= ((selected_clock & 0x3) << 1) << 4;
	else
		clk |= (priv->ref_clock << 1) << 4;

	ret = wlcore_write32(wl, WL12XX_DRPW_SCRATCH_START, clk);
	if (ret < 0)
		goto out;

	ret = wlcore_set_partition(wl, &wl->ptable[PART_WORK]);
	if (ret < 0)
		goto out;

	/* Disable interrupts */
	ret = wlcore_write_reg(wl, REG_INTERRUPT_MASK, WL1271_ACX_INTR_ALL);
	if (ret < 0)
		goto out;

	ret = wl1271_boot_soft_reset(wl);
	if (ret < 0)
		goto out;

out:
	return ret;
}

static int wl12xx_pre_upload(struct wl1271 *wl)
{
	u32 tmp;
	u16 polarity;
	int ret;

	/* write firmware's last address (ie. it's length) to
	 * ACX_EEPROMLESS_IND_REG */
	wl1271_debug(DEBUG_BOOT, "ACX_EEPROMLESS_IND_REG");

	ret = wlcore_write32(wl, WL12XX_EEPROMLESS_IND, WL12XX_EEPROMLESS_IND);
	if (ret < 0)
		goto out;

	ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &tmp);
	if (ret < 0)
		goto out;

	wl1271_debug(DEBUG_BOOT, "chip id 0x%x", tmp);

	/* 6. read the EEPROM parameters */
	ret = wlcore_read32(wl, WL12XX_SCR_PAD2, &tmp);
	if (ret < 0)
		goto out;

	/* WL1271: The reference driver skips steps 7 to 10 (jumps directly
	 * to upload_fw) */

	if (wl->chip.id == CHIP_ID_1283_PG20) {
		ret = wl12xx_top_reg_write(wl, SDIO_IO_DS, HCI_IO_DS_6MA);
		if (ret < 0)
			goto out;
	}

	/* polarity must be set before the firmware is loaded */
	ret = wl12xx_top_reg_read(wl, OCP_REG_POLARITY, &polarity);
	if (ret < 0)
		goto out;

	/* We use HIGH polarity, so unset the LOW bit */
	polarity &= ~POLARITY_LOW;
	ret = wl12xx_top_reg_write(wl, OCP_REG_POLARITY, polarity);

out:
	return ret;
}

static int wl12xx_enable_interrupts(struct wl1271 *wl)
{
	int ret;

	ret = wlcore_write_reg(wl, REG_INTERRUPT_MASK,
			       WL12XX_ACX_ALL_EVENTS_VECTOR);
	if (ret < 0)
		goto out;

	wlcore_enable_interrupts(wl);
	ret = wlcore_write_reg(wl, REG_INTERRUPT_MASK,
			       WL1271_ACX_INTR_ALL & ~(WL12XX_INTR_MASK));
	if (ret < 0)
		goto out;

	ret = wlcore_write32(wl, WL12XX_HI_CFG, HI_CFG_DEF_VAL);

out:
	return ret;
}

static int wl12xx_boot(struct wl1271 *wl)
{
	int ret;

	ret = wl12xx_pre_boot(wl);
	if (ret < 0)
		goto out;

	ret = wlcore_boot_upload_nvs(wl);
	if (ret < 0)
		goto out;

	ret = wl12xx_pre_upload(wl);
	if (ret < 0)
		goto out;

	ret = wlcore_boot_upload_firmware(wl);
	if (ret < 0)
		goto out;

	ret = wlcore_boot_run_firmware(wl);
	if (ret < 0)
		goto out;

	ret = wl12xx_enable_interrupts(wl);

out:
	return ret;
}

static int wl12xx_trigger_cmd(struct wl1271 *wl, int cmd_box_addr,
			       void *buf, size_t len)
{
	int ret;

	ret = wlcore_write(wl, cmd_box_addr, buf, len, false);
	if (ret < 0)
		return ret;

	ret = wlcore_write_reg(wl, REG_INTERRUPT_TRIG, WL12XX_INTR_TRIG_CMD);

	return ret;
}

static int wl12xx_ack_event(struct wl1271 *wl)
{
	return wlcore_write_reg(wl, REG_INTERRUPT_TRIG,
				WL12XX_INTR_TRIG_EVENT_ACK);
}

static u32 wl12xx_calc_tx_blocks(struct wl1271 *wl, u32 len, u32 spare_blks)
{
	u32 blk_size = WL12XX_TX_HW_BLOCK_SIZE;
	u32 align_len = wlcore_calc_packet_alignment(wl, len);

	return (align_len + blk_size - 1) / blk_size + spare_blks;
}

static void
wl12xx_set_tx_desc_blocks(struct wl1271 *wl, struct wl1271_tx_hw_descr *desc,
			  u32 blks, u32 spare_blks)
{
	if (wl->chip.id == CHIP_ID_1283_PG20) {
		desc->wl128x_mem.total_mem_blocks = blks;
	} else {
		desc->wl127x_mem.extra_blocks = spare_blks;
		desc->wl127x_mem.total_mem_blocks = blks;
	}
}

static void
wl12xx_set_tx_desc_data_len(struct wl1271 *wl, struct wl1271_tx_hw_descr *desc,
			    struct sk_buff *skb)
{
	u32 aligned_len = wlcore_calc_packet_alignment(wl, skb->len);

	if (wl->chip.id == CHIP_ID_1283_PG20) {
		desc->wl128x_mem.extra_bytes = aligned_len - skb->len;
		desc->length = cpu_to_le16(aligned_len >> 2);

		wl1271_debug(DEBUG_TX,
			     "tx_fill_hdr: hlid: %d len: %d life: %d mem: %d extra: %d",
			     desc->hlid,
			     le16_to_cpu(desc->length),
			     le16_to_cpu(desc->life_time),
			     desc->wl128x_mem.total_mem_blocks,
			     desc->wl128x_mem.extra_bytes);
	} else {
		/* calculate number of padding bytes */
		int pad = aligned_len - skb->len;
		desc->tx_attr |=
			cpu_to_le16(pad << TX_HW_ATTR_OFST_LAST_WORD_PAD);

		/* Store the aligned length in terms of words */
		desc->length = cpu_to_le16(aligned_len >> 2);

		wl1271_debug(DEBUG_TX,
			     "tx_fill_hdr: pad: %d hlid: %d len: %d life: %d mem: %d",
			     pad, desc->hlid,
			     le16_to_cpu(desc->length),
			     le16_to_cpu(desc->life_time),
			     desc->wl127x_mem.total_mem_blocks);
	}
}

static enum wl_rx_buf_align
wl12xx_get_rx_buf_align(struct wl1271 *wl, u32 rx_desc)
{
	if (rx_desc & RX_BUF_UNALIGNED_PAYLOAD)
		return WLCORE_RX_BUF_UNALIGNED;

	return WLCORE_RX_BUF_ALIGNED;
}

static u32 wl12xx_get_rx_packet_len(struct wl1271 *wl, void *rx_data,
				    u32 data_len)
{
	struct wl1271_rx_descriptor *desc = rx_data;

	/* invalid packet */
	if (data_len < sizeof(*desc) ||
	    data_len < sizeof(*desc) + desc->pad_len)
		return 0;

	return data_len - sizeof(*desc) - desc->pad_len;
}

static int wl12xx_tx_delayed_compl(struct wl1271 *wl)
{
	if (wl->fw_status_1->tx_results_counter ==
	    (wl->tx_results_count & 0xff))
		return 0;

	return wlcore_tx_complete(wl);
}

static int wl12xx_hw_init(struct wl1271 *wl)
{
	int ret;

	if (wl->chip.id == CHIP_ID_1283_PG20) {
		u32 host_cfg_bitmap = HOST_IF_CFG_RX_FIFO_ENABLE;

		ret = wl128x_cmd_general_parms(wl);
		if (ret < 0)
			goto out;
		ret = wl128x_cmd_radio_parms(wl);
		if (ret < 0)
			goto out;

		if (wl->quirks & WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN)
			/* Enable SDIO padding */
			host_cfg_bitmap |= HOST_IF_CFG_TX_PAD_TO_SDIO_BLK;

		/* Must be before wl1271_acx_init_mem_config() */
		ret = wl1271_acx_host_if_cfg_bitmap(wl, host_cfg_bitmap);
		if (ret < 0)
			goto out;
	} else {
		ret = wl1271_cmd_general_parms(wl);
		if (ret < 0)
			goto out;
		ret = wl1271_cmd_radio_parms(wl);
		if (ret < 0)
			goto out;
		ret = wl1271_cmd_ext_radio_parms(wl);
		if (ret < 0)
			goto out;
	}
out:
	return ret;
}

static u32 wl12xx_sta_get_ap_rate_mask(struct wl1271 *wl,
				       struct wl12xx_vif *wlvif)
{
	return wlvif->rate_set;
}

static int wl12xx_identify_fw(struct wl1271 *wl)
{
	unsigned int *fw_ver = wl->chip.fw_ver;

	/* Only new station firmwares support routing fw logs to the host */
	if ((fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_STA) &&
	    (fw_ver[FW_VER_MINOR] < FW_VER_MINOR_FWLOG_STA_MIN))
		wl->quirks |= WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED;

	/* This feature is not yet supported for AP mode */
	if (fw_ver[FW_VER_IF_TYPE] == FW_VER_IF_TYPE_AP)
		wl->quirks |= WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED;

	return 0;
}

static void wl12xx_conf_init(struct wl1271 *wl)
{
	struct wl12xx_priv *priv = wl->priv;

	/* apply driver default configuration */
	memcpy(&wl->conf, &wl12xx_conf, sizeof(wl12xx_conf));

	/* apply default private configuration */
	memcpy(&priv->conf, &wl12xx_default_priv_conf, sizeof(priv->conf));
}

static bool wl12xx_mac_in_fuse(struct wl1271 *wl)
{
	bool supported = false;
	u8 major, minor;

	if (wl->chip.id == CHIP_ID_1283_PG20) {
		major = WL128X_PG_GET_MAJOR(wl->hw_pg_ver);
		minor = WL128X_PG_GET_MINOR(wl->hw_pg_ver);

		/* in wl128x we have the MAC address if the PG is >= (2, 1) */
		if (major > 2 || (major == 2 && minor >= 1))
			supported = true;
	} else {
		major = WL127X_PG_GET_MAJOR(wl->hw_pg_ver);
		minor = WL127X_PG_GET_MINOR(wl->hw_pg_ver);

		/* in wl127x we have the MAC address if the PG is >= (3, 1) */
		if (major == 3 && minor >= 1)
			supported = true;
	}

	wl1271_debug(DEBUG_PROBE,
		     "PG Ver major = %d minor = %d, MAC %s present",
		     major, minor, supported ? "is" : "is not");

	return supported;
}

static int wl12xx_get_fuse_mac(struct wl1271 *wl)
{
	u32 mac1, mac2;
	int ret;

	ret = wlcore_set_partition(wl, &wl->ptable[PART_DRPW]);
	if (ret < 0)
		goto out;

	ret = wlcore_read32(wl, WL12XX_REG_FUSE_BD_ADDR_1, &mac1);
	if (ret < 0)
		goto out;

	ret = wlcore_read32(wl, WL12XX_REG_FUSE_BD_ADDR_2, &mac2);
	if (ret < 0)
		goto out;

	/* these are the two parts of the BD_ADDR */
	wl->fuse_oui_addr = ((mac2 & 0xffff) << 8) +
		((mac1 & 0xff000000) >> 24);
	wl->fuse_nic_addr = mac1 & 0xffffff;

	ret = wlcore_set_partition(wl, &wl->ptable[PART_DOWN]);

out:
	return ret;
}

static int wl12xx_get_pg_ver(struct wl1271 *wl, s8 *ver)
{
	u16 die_info;
	int ret;

	if (wl->chip.id == CHIP_ID_1283_PG20)
		ret = wl12xx_top_reg_read(wl, WL128X_REG_FUSE_DATA_2_1,
					  &die_info);
	else
		ret = wl12xx_top_reg_read(wl, WL127X_REG_FUSE_DATA_2_1,
					  &die_info);

	if (ret >= 0 && ver)
		*ver = (s8)((die_info & PG_VER_MASK) >> PG_VER_OFFSET);

	return ret;
}

static int wl12xx_get_mac(struct wl1271 *wl)
{
	if (wl12xx_mac_in_fuse(wl))
		return wl12xx_get_fuse_mac(wl);

	return 0;
}

static void wl12xx_set_tx_desc_csum(struct wl1271 *wl,
				    struct wl1271_tx_hw_descr *desc,
				    struct sk_buff *skb)
{
	desc->wl12xx_reserved = 0;
}

static int wl12xx_plt_init(struct wl1271 *wl)
{
	int ret;

	ret = wl->ops->boot(wl);
	if (ret < 0)
		goto out;

	ret = wl->ops->hw_init(wl);
	if (ret < 0)
		goto out_irq_disable;

	ret = wl1271_acx_init_mem_config(wl);
	if (ret < 0)
		goto out_irq_disable;

	ret = wl12xx_acx_mem_cfg(wl);
	if (ret < 0)
		goto out_free_memmap;

	/* Enable data path */
	ret = wl1271_cmd_data_path(wl, 1);
	if (ret < 0)
		goto out_free_memmap;

	/* Configure for CAM power saving (ie. always active) */
	ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
	if (ret < 0)
		goto out_free_memmap;

	/* configure PM */
	ret = wl1271_acx_pm_config(wl);
	if (ret < 0)
		goto out_free_memmap;

	goto out;

out_free_memmap:
	kfree(wl->target_mem_map);
	wl->target_mem_map = NULL;

out_irq_disable:
	mutex_unlock(&wl->mutex);
	/* Unlocking the mutex in the middle of handling is
	   inherently unsafe. In this case we deem it safe to do,
	   because we need to let any possibly pending IRQ out of
	   the system (and while we are WL1271_STATE_OFF the IRQ
	   work function will not do anything.) Also, any other
	   possible concurrent operations will fail due to the
	   current state, hence the wl1271 struct should be safe. */
	wlcore_disable_interrupts(wl);
	mutex_lock(&wl->mutex);
out:
	return ret;
}

static int wl12xx_get_spare_blocks(struct wl1271 *wl, bool is_gem)
{
	if (is_gem)
		return WL12XX_TX_HW_BLOCK_GEM_SPARE;

	return WL12XX_TX_HW_BLOCK_SPARE_DEFAULT;
}

static int wl12xx_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
			  struct ieee80211_vif *vif,
			  struct ieee80211_sta *sta,
			  struct ieee80211_key_conf *key_conf)
{
	return wlcore_set_key(wl, cmd, vif, sta, key_conf);
}

static struct wlcore_ops wl12xx_ops = {
	.identify_chip		= wl12xx_identify_chip,
	.identify_fw		= wl12xx_identify_fw,
	.boot			= wl12xx_boot,
	.plt_init		= wl12xx_plt_init,
	.trigger_cmd		= wl12xx_trigger_cmd,
	.ack_event		= wl12xx_ack_event,
	.calc_tx_blocks		= wl12xx_calc_tx_blocks,
	.set_tx_desc_blocks	= wl12xx_set_tx_desc_blocks,
	.set_tx_desc_data_len	= wl12xx_set_tx_desc_data_len,
	.get_rx_buf_align	= wl12xx_get_rx_buf_align,
	.get_rx_packet_len	= wl12xx_get_rx_packet_len,
	.tx_immediate_compl	= NULL,
	.tx_delayed_compl	= wl12xx_tx_delayed_compl,
	.hw_init		= wl12xx_hw_init,
	.init_vif		= NULL,
	.sta_get_ap_rate_mask	= wl12xx_sta_get_ap_rate_mask,
	.get_pg_ver		= wl12xx_get_pg_ver,
	.get_mac		= wl12xx_get_mac,
	.set_tx_desc_csum	= wl12xx_set_tx_desc_csum,
	.set_rx_csum		= NULL,
	.ap_get_mimo_wide_rate_mask = NULL,
	.debugfs_init		= wl12xx_debugfs_add_files,
	.get_spare_blocks	= wl12xx_get_spare_blocks,
	.set_key		= wl12xx_set_key,
	.pre_pkt_send		= NULL,
};

static struct ieee80211_sta_ht_cap wl12xx_ht_cap = {
	.cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
	       (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT),
	.ht_supported = true,
	.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K,
	.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8,
	.mcs = {
		.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
		.rx_highest = cpu_to_le16(72),
		.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
		},
};

static int __devinit wl12xx_probe(struct platform_device *pdev)
{
	struct wl12xx_platform_data *pdata = pdev->dev.platform_data;
	struct wl1271 *wl;
	struct ieee80211_hw *hw;
	struct wl12xx_priv *priv;

	hw = wlcore_alloc_hw(sizeof(*priv));
	if (IS_ERR(hw)) {
		wl1271_error("can't allocate hw");
		return PTR_ERR(hw);
	}

	wl = hw->priv;
	priv = wl->priv;
	wl->ops = &wl12xx_ops;
	wl->ptable = wl12xx_ptable;
	wl->rtable = wl12xx_rtable;
	wl->num_tx_desc = 16;
	wl->num_rx_desc = 8;
	wl->band_rate_to_idx = wl12xx_band_rate_to_idx;
	wl->hw_tx_rate_tbl_size = WL12XX_CONF_HW_RXTX_RATE_MAX;
	wl->hw_min_ht_rate = WL12XX_CONF_HW_RXTX_RATE_MCS0;
	wl->fw_status_priv_len = 0;
	wl->stats.fw_stats_len = sizeof(struct wl12xx_acx_statistics);
	wlcore_set_ht_cap(wl, IEEE80211_BAND_2GHZ, &wl12xx_ht_cap);
	wlcore_set_ht_cap(wl, IEEE80211_BAND_5GHZ, &wl12xx_ht_cap);
	wl12xx_conf_init(wl);

	if (!fref_param) {
		priv->ref_clock = pdata->board_ref_clock;
	} else {
		if (!strcmp(fref_param, "19.2"))
			priv->ref_clock = WL12XX_REFCLOCK_19;
		else if (!strcmp(fref_param, "26"))
			priv->ref_clock = WL12XX_REFCLOCK_26;
		else if (!strcmp(fref_param, "26x"))
			priv->ref_clock = WL12XX_REFCLOCK_26_XTAL;
		else if (!strcmp(fref_param, "38.4"))
			priv->ref_clock = WL12XX_REFCLOCK_38;
		else if (!strcmp(fref_param, "38.4x"))
			priv->ref_clock = WL12XX_REFCLOCK_38_XTAL;
		else if (!strcmp(fref_param, "52"))
			priv->ref_clock = WL12XX_REFCLOCK_52;
		else
			wl1271_error("Invalid fref parameter %s", fref_param);
	}

	if (!tcxo_param) {
		priv->tcxo_clock = pdata->board_tcxo_clock;
	} else {
		if (!strcmp(tcxo_param, "19.2"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
		else if (!strcmp(tcxo_param, "26"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_26;
		else if (!strcmp(tcxo_param, "38.4"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_38_4;
		else if (!strcmp(tcxo_param, "52"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_52;
		else if (!strcmp(tcxo_param, "16.368"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_16_368;
		else if (!strcmp(tcxo_param, "32.736"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_32_736;
		else if (!strcmp(tcxo_param, "16.8"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_16_8;
		else if (!strcmp(tcxo_param, "33.6"))
			priv->tcxo_clock = WL12XX_TCXOCLOCK_33_6;
		else
			wl1271_error("Invalid tcxo parameter %s", tcxo_param);
	}

	return wlcore_probe(wl, pdev);
}

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
static const struct platform_device_id wl12xx_id_table[] __devinitconst = {
	{ "wl12xx", 0 },
	{  } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(platform, wl12xx_id_table);
#endif

static struct platform_driver wl12xx_driver = {
	.probe		= wl12xx_probe,
	.remove		= __devexit_p(wlcore_remove),
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
	.id_table	= wl12xx_id_table,
#endif
	.driver = {
		.name	= "wl12xx_driver",
		.owner	= THIS_MODULE,
	}
};

static int __init wl12xx_init(void)
{
	return platform_driver_register(&wl12xx_driver);
}
module_init(wl12xx_init);

static void __exit wl12xx_exit(void)
{
	platform_driver_unregister(&wl12xx_driver);
}
module_exit(wl12xx_exit);

module_param_named(fref, fref_param, charp, 0);
MODULE_PARM_DESC(fref, "FREF clock: 19.2, 26, 26x, 38.4, 38.4x, 52");

module_param_named(tcxo, tcxo_param, charp, 0);
MODULE_PARM_DESC(tcxo,
		 "TCXO clock: 19.2, 26, 38.4, 52, 16.368, 32.736, 16.8, 33.6");

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
MODULE_FIRMWARE(WL127X_FW_NAME_SINGLE);
MODULE_FIRMWARE(WL127X_FW_NAME_MULTI);
MODULE_FIRMWARE(WL127X_PLT_FW_NAME);
MODULE_FIRMWARE(WL128X_FW_NAME_SINGLE);
MODULE_FIRMWARE(WL128X_FW_NAME_MULTI);
MODULE_FIRMWARE(WL128X_PLT_FW_NAME);
