Merge branch 'next' into for-linus

1 files changed, 5 insertions, 353 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index 86f5123bccda..f00d188b2cfc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -30,7 +30,7 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2005 - 2010 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -91,7 +91,6 @@
 #define APMG_PS_CTRL_VAL_RESET_REQ		(0x04000000)
 #define APMG_PS_CTRL_MSK_PWR_SRC		(0x03000000)
 #define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN		(0x00000000)
-#define APMG_PS_CTRL_VAL_PWR_SRC_MAX		(0x01000000) /* 3945 only */
 #define APMG_PS_CTRL_VAL_PWR_SRC_VAUX		(0x02000000)
 #define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK	(0x000001E0) /* bit 8:5 */
 #define APMG_SVR_DIGITAL_VOLTAGE_1_32		(0x00000060)
@@ -99,152 +98,6 @@
 #define APMG_PCIDEV_STT_VAL_L1_ACT_DIS		(0x00000800)
 
 /**
- * BSM (Bootstrap State Machine)
- *
- * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
- * in special SRAM that does not power down when the embedded control
- * processor is sleeping (e.g. for periodic power-saving shutdowns of radio).
- *
- * When powering back up after sleeps (or during initial uCode load), the BSM
- * internally loads the short bootstrap program from the special SRAM into the
- * embedded processor's instruction SRAM, and starts the processor so it runs
- * the bootstrap program.
- *
- * This bootstrap program loads (via PCI busmaster DMA) instructions and data
- * images for a uCode program from host DRAM locations.  The host driver
- * indicates DRAM locations and sizes for instruction and data images via the
- * four BSM_DRAM_* registers.  Once the bootstrap program loads the new program,
- * the new program starts automatically.
- *
- * The uCode used for open-source drivers includes two programs:
- *
- * 1)  Initialization -- performs hardware calibration and sets up some
- *     internal data, then notifies host via "initialize alive" notification
- *     (struct iwl_init_alive_resp) that it has completed all of its work.
- *     After signal from host, it then loads and starts the runtime program.
- *     The initialization program must be used when initially setting up the
- *     NIC after loading the driver.
- *
- * 2)  Runtime/Protocol -- performs all normal runtime operations.  This
- *     notifies host via "alive" notification (struct iwl_alive_resp) that it
- *     is ready to be used.
- *
- * When initializing the NIC, the host driver does the following procedure:
- *
- * 1)  Load bootstrap program (instructions only, no data image for bootstrap)
- *     into bootstrap memory.  Use dword writes starting at BSM_SRAM_LOWER_BOUND
- *
- * 2)  Point (via BSM_DRAM_*) to the "initialize" uCode data and instruction
- *     images in host DRAM.
- *
- * 3)  Set up BSM to copy from BSM SRAM into uCode instruction SRAM when asked:
- *     BSM_WR_MEM_SRC_REG = 0
- *     BSM_WR_MEM_DST_REG = RTC_INST_LOWER_BOUND
- *     BSM_WR_MEM_DWCOUNT_REG = # dwords in bootstrap instruction image
- *
- * 4)  Load bootstrap into instruction SRAM:
- *     BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START
- *
- * 5)  Wait for load completion:
- *     Poll BSM_WR_CTRL_REG for BSM_WR_CTRL_REG_BIT_START = 0
- *
- * 6)  Enable future boot loads whenever NIC's power management triggers it:
- *     BSM_WR_CTRL_REG = BSM_WR_CTRL_REG_BIT_START_EN
- *
- * 7)  Start the NIC by removing all reset bits:
- *     CSR_RESET = 0
- *
- *     The bootstrap uCode (already in instruction SRAM) loads initialization
- *     uCode.  Initialization uCode performs data initialization, sends
- *     "initialize alive" notification to host, and waits for a signal from
- *     host to load runtime code.
- *
- * 4)  Point (via BSM_DRAM_*) to the "runtime" uCode data and instruction
- *     images in host DRAM.  The last register loaded must be the instruction
- *     byte count register ("1" in MSbit tells initialization uCode to load
- *     the runtime uCode):
- *     BSM_DRAM_INST_BYTECOUNT_REG = byte count | BSM_DRAM_INST_LOAD
- *
- * 5)  Wait for "alive" notification, then issue normal runtime commands.
- *
- * Data caching during power-downs:
- *
- * Just before the embedded controller powers down (e.g for automatic
- * power-saving modes, or for RFKILL), uCode stores (via PCI busmaster DMA)
- * a current snapshot of the embedded processor's data SRAM into host DRAM.
- * This caches the data while the embedded processor's memory is powered down.
- * Location and size are controlled by BSM_DRAM_DATA_* registers.
- *
- * NOTE:  Instruction SRAM does not need to be saved, since that doesn't
- *        change during operation; the original image (from uCode distribution
- *        file) can be used for reload.
- *
- * When powering back up, the BSM loads the bootstrap program.  Bootstrap looks
- * at the BSM_DRAM_* registers, which now point to the runtime instruction
- * image and the cached (modified) runtime data (*not* the initialization
- * uCode).  Bootstrap reloads these runtime images into SRAM, and restarts the
- * uCode from where it left off before the power-down.
- *
- * NOTE:  Initialization uCode does *not* run as part of the save/restore
- *        procedure.
- *
- * This save/restore method is mostly for autonomous power management during
- * normal operation (result of POWER_TABLE_CMD).  Platform suspend/resume and
- * RFKILL should use complete restarts (with total re-initialization) of uCode,
- * allowing total shutdown (including BSM memory).
- *
- * Note that, during normal operation, the host DRAM that held the initial
- * startup data for the runtime code is now being used as a backup data cache
- * for modified data!  If you need to completely re-initialize the NIC, make
- * sure that you use the runtime data image from the uCode distribution file,
- * not the modified/saved runtime data.  You may want to store a separate
- * "clean" runtime data image in DRAM to avoid disk reads of distribution file.
- */
-
-/* BSM bit fields */
-#define BSM_WR_CTRL_REG_BIT_START     (0x80000000) /* start boot load now */
-#define BSM_WR_CTRL_REG_BIT_START_EN  (0x40000000) /* enable boot after pwrup*/
-#define BSM_DRAM_INST_LOAD            (0x80000000) /* start program load now */
-
-/* BSM addresses */
-#define BSM_BASE                     (PRPH_BASE + 0x3400)
-#define BSM_END                      (PRPH_BASE + 0x3800)
-
-#define BSM_WR_CTRL_REG              (BSM_BASE + 0x000) /* ctl and status */
-#define BSM_WR_MEM_SRC_REG           (BSM_BASE + 0x004) /* source in BSM mem */
-#define BSM_WR_MEM_DST_REG           (BSM_BASE + 0x008) /* dest in SRAM mem */
-#define BSM_WR_DWCOUNT_REG           (BSM_BASE + 0x00C) /* bytes */
-#define BSM_WR_STATUS_REG            (BSM_BASE + 0x010) /* bit 0:  1 == done */
-
-/*
- * Pointers and size regs for bootstrap load and data SRAM save/restore.
- * NOTE:  3945 pointers use bits 31:0 of DRAM address.
- *        4965 pointers use bits 35:4 of DRAM address.
- */
-#define BSM_DRAM_INST_PTR_REG        (BSM_BASE + 0x090)
-#define BSM_DRAM_INST_BYTECOUNT_REG  (BSM_BASE + 0x094)
-#define BSM_DRAM_DATA_PTR_REG        (BSM_BASE + 0x098)
-#define BSM_DRAM_DATA_BYTECOUNT_REG  (BSM_BASE + 0x09C)
-
-/*
- * BSM special memory, stays powered on during power-save sleeps.
- * Read/write, address range from LOWER_BOUND to (LOWER_BOUND + SIZE -1)
- */
-#define BSM_SRAM_LOWER_BOUND         (PRPH_BASE + 0x3800)
-#define BSM_SRAM_SIZE			(1024) /* bytes */
-
-
-/* 3945 Tx scheduler registers */
-#define ALM_SCD_BASE                        (PRPH_BASE + 0x2E00)
-#define ALM_SCD_MODE_REG                    (ALM_SCD_BASE + 0x000)
-#define ALM_SCD_ARASTAT_REG                 (ALM_SCD_BASE + 0x004)
-#define ALM_SCD_TXFACT_REG                  (ALM_SCD_BASE + 0x010)
-#define ALM_SCD_TXF4MF_REG                  (ALM_SCD_BASE + 0x014)
-#define ALM_SCD_TXF5MF_REG                  (ALM_SCD_BASE + 0x020)
-#define ALM_SCD_SBYP_MODE_1_REG             (ALM_SCD_BASE + 0x02C)
-#define ALM_SCD_SBYP_MODE_2_REG             (ALM_SCD_BASE + 0x030)
-
-/**
  * Tx Scheduler
  *
  * The Tx Scheduler selects the next frame to be transmitted, choosing TFDs
@@ -254,17 +107,7 @@
  * device.  A queue maps to only one (selectable by driver) Tx DMA channel,
  * but one DMA channel may take input from several queues.
  *
- * Tx DMA FIFOs have dedicated purposes.  For 4965, they are used as follows
- * (cf. default_queue_to_tx_fifo in iwl-4965.c):
- *
- * 0 -- EDCA BK (background) frames, lowest priority
- * 1 -- EDCA BE (best effort) frames, normal priority
- * 2 -- EDCA VI (video) frames, higher priority
- * 3 -- EDCA VO (voice) and management frames, highest priority
- * 4 -- Commands (e.g. RXON, etc.)
- * 5 -- unused (HCCA)
- * 6 -- unused (HCCA)
- * 7 -- not used by driver (device-internal only)
+ * Tx DMA FIFOs have dedicated purposes.
  *
  * For 5000 series and up, they are used differently
  * (cf. iwl5000_default_queue_to_tx_fifo in iwl-5000.c):
@@ -298,7 +141,7 @@
  *     Tx completion may end up being out-of-order).
  *
  *     The driver must maintain the queue's Byte Count table in host DRAM
- *     (struct iwl4965_sched_queue_byte_cnt_tbl) for this mode.
+ *     for this mode.
  *     This mode does not support fragmentation.
  *
  * 2)  FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order.
@@ -311,7 +154,7 @@
  *
  * Driver controls scheduler operation via 3 means:
  * 1)  Scheduler registers
- * 2)  Shared scheduler data base in internal 4956 SRAM
+ * 2)  Shared scheduler data base in internal SRAM
  * 3)  Shared data in host DRAM
  *
  * Initialization:
@@ -330,201 +173,10 @@
  * Max Tx window size is the max number of contiguous TFDs that the scheduler
  * can keep track of at one time when creating block-ack chains of frames.
  * Note that "64" matches the number of ack bits in a block-ack packet.
- * Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize
- * IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) values.
  */
 #define SCD_WIN_SIZE				64
 #define SCD_FRAME_LIMIT				64
 
-/* SCD registers are internal, must be accessed via HBUS_TARG_PRPH regs */
-#define IWL49_SCD_START_OFFSET		0xa02c00
-
-/*
- * 4965 tells driver SRAM address for internal scheduler structs via this reg.
- * Value is valid only after "Alive" response from uCode.
- */
-#define IWL49_SCD_SRAM_BASE_ADDR           (IWL49_SCD_START_OFFSET + 0x0)
-
-/*
- * Driver may need to update queue-empty bits after changing queue's
- * write and read pointers (indexes) during (re-)initialization (i.e. when
- * scheduler is not tracking what's happening).
- * Bit fields:
- * 31-16:  Write mask -- 1: update empty bit, 0: don't change empty bit
- * 15-00:  Empty state, one for each queue -- 1: empty, 0: non-empty
- * NOTE:  This register is not used by Linux driver.
- */
-#define IWL49_SCD_EMPTY_BITS               (IWL49_SCD_START_OFFSET + 0x4)
-
-/*
- * Physical base address of array of byte count (BC) circular buffers (CBs).
- * Each Tx queue has a BC CB in host DRAM to support Scheduler-ACK mode.
- * This register points to BC CB for queue 0, must be on 1024-byte boundary.
- * Others are spaced by 1024 bytes.
- * Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad.
- * (Index into a queue's BC CB) = (index into queue's TFD CB) = (SSN & 0xff).
- * Bit fields:
- * 25-00:  Byte Count CB physical address [35:10], must be 1024-byte aligned.
- */
-#define IWL49_SCD_DRAM_BASE_ADDR           (IWL49_SCD_START_OFFSET + 0x10)
-
-/*
- * Enables any/all Tx DMA/FIFO channels.
- * Scheduler generates requests for only the active channels.
- * Set this to 0xff to enable all 8 channels (normal usage).
- * Bit fields:
- *  7- 0:  Enable (1), disable (0), one bit for each channel 0-7
- */
-#define IWL49_SCD_TXFACT                   (IWL49_SCD_START_OFFSET + 0x1c)
-/*
- * Queue (x) Write Pointers (indexes, really!), one for each Tx queue.
- * Initialized and updated by driver as new TFDs are added to queue.
- * NOTE:  If using Block Ack, index must correspond to frame's
- *        Start Sequence Number; index = (SSN & 0xff)
- * NOTE:  Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses?
- */
-#define IWL49_SCD_QUEUE_WRPTR(x)  (IWL49_SCD_START_OFFSET + 0x24 + (x) * 4)
-
-/*
- * Queue (x) Read Pointers (indexes, really!), one for each Tx queue.
- * For FIFO mode, index indicates next frame to transmit.
- * For Scheduler-ACK mode, index indicates first frame in Tx window.
- * Initialized by driver, updated by scheduler.
- */
-#define IWL49_SCD_QUEUE_RDPTR(x)  (IWL49_SCD_START_OFFSET + 0x64 + (x) * 4)
-
-/*
- * Select which queues work in chain mode (1) vs. not (0).
- * Use chain mode to build chains of aggregated frames.
- * Bit fields:
- * 31-16:  Reserved
- * 15-00:  Mode, one bit for each queue -- 1: Chain mode, 0: one-at-a-time
- * NOTE:  If driver sets up queue for chain mode, it should be also set up
- *        Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x).
- */
-#define IWL49_SCD_QUEUECHAIN_SEL  (IWL49_SCD_START_OFFSET + 0xd0)
-
-/*
- * Select which queues interrupt driver when scheduler increments
- * a queue's read pointer (index).
- * Bit fields:
- * 31-16:  Reserved
- * 15-00:  Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled
- * NOTE:  This functionality is apparently a no-op; driver relies on interrupts
- *        from Rx queue to read Tx command responses and update Tx queues.
- */
-#define IWL49_SCD_INTERRUPT_MASK  (IWL49_SCD_START_OFFSET + 0xe4)
-
-/*
- * Queue search status registers.  One for each queue.
- * Sets up queue mode and assigns queue to Tx DMA channel.
- * Bit fields:
- * 19-10: Write mask/enable bits for bits 0-9
- *     9: Driver should init to "0"
- *     8: Scheduler-ACK mode (1), non-Scheduler-ACK (i.e. FIFO) mode (0).
- *        Driver should init to "1" for aggregation mode, or "0" otherwise.
- *   7-6: Driver should init to "0"
- *     5: Window Size Left; indicates whether scheduler can request
- *        another TFD, based on window size, etc.  Driver should init
- *        this bit to "1" for aggregation mode, or "0" for non-agg.
- *   4-1: Tx FIFO to use (range 0-7).
- *     0: Queue is active (1), not active (0).
- * Other bits should be written as "0"
- *
- * NOTE:  If enabling Scheduler-ACK mode, chain mode should also be enabled
- *        via SCD_QUEUECHAIN_SEL.
- */
-#define IWL49_SCD_QUEUE_STATUS_BITS(x)\
-	(IWL49_SCD_START_OFFSET + 0x104 + (x) * 4)
-
-/* Bit field positions */
-#define IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE	(0)
-#define IWL49_SCD_QUEUE_STTS_REG_POS_TXF	(1)
-#define IWL49_SCD_QUEUE_STTS_REG_POS_WSL	(5)
-#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK	(8)
-
-/* Write masks */
-#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN	(10)
-#define IWL49_SCD_QUEUE_STTS_REG_MSK		(0x0007FC00)
-
-/**
- * 4965 internal SRAM structures for scheduler, shared with driver ...
- *
- * Driver should clear and initialize the following areas after receiving
- * "Alive" response from 4965 uCode, i.e. after initial
- * uCode load, or after a uCode load done for error recovery:
- *
- * SCD_CONTEXT_DATA_OFFSET (size 128 bytes)
- * SCD_TX_STTS_BITMAP_OFFSET (size 256 bytes)
- * SCD_TRANSLATE_TBL_OFFSET (size 32 bytes)
- *
- * Driver accesses SRAM via HBUS_TARG_MEM_* registers.
- * Driver reads base address of this scheduler area from SCD_SRAM_BASE_ADDR.
- * All OFFSET values must be added to this base address.
- */
-
-/*
- * Queue context.  One 8-byte entry for each of 16 queues.
- *
- * Driver should clear this entire area (size 0x80) to 0 after receiving
- * "Alive" notification from uCode.  Additionally, driver should init
- * each queue's entry as follows:
- *
- * LS Dword bit fields:
- *  0-06:  Max Tx window size for Scheduler-ACK.  Driver should init to 64.
- *
- * MS Dword bit fields:
- * 16-22:  Frame limit.  Driver should init to 10 (0xa).
- *
- * Driver should init all other bits to 0.
- *
- * Init must be done after driver receives "Alive" response from 4965 uCode,
- * and when setting up queue for aggregation.
- */
-#define IWL49_SCD_CONTEXT_DATA_OFFSET			0x380
-#define IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) \
-			(IWL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
-
-#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS		(0)
-#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK		(0x0000007F)
-#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS	(16)
-#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK	(0x007F0000)
-
-/*
- * Tx Status Bitmap
- *
- * Driver should clear this entire area (size 0x100) to 0 after receiving
- * "Alive" notification from uCode.  Area is used only by device itself;
- * no other support (besides clearing) is required from driver.
- */
-#define IWL49_SCD_TX_STTS_BITMAP_OFFSET		0x400
-
-/*
- * RAxTID to queue translation mapping.
- *
- * When queue is in Scheduler-ACK mode, frames placed in a that queue must be
- * for only one combination of receiver address (RA) and traffic ID (TID), i.e.
- * one QOS priority level destined for one station (for this wireless link,
- * not final destination).  The SCD_TRANSLATE_TABLE area provides 16 16-bit
- * mappings, one for each of the 16 queues.  If queue is not in Scheduler-ACK
- * mode, the device ignores the mapping value.
- *
- * Bit fields, for each 16-bit map:
- * 15-9:  Reserved, set to 0
- *  8-4:  Index into device's station table for recipient station
- *  3-0:  Traffic ID (tid), range 0-15
- *
- * Driver should clear this entire area (size 32 bytes) to 0 after receiving
- * "Alive" notification from uCode.  To update a 16-bit map value, driver
- * must read a dword-aligned value from device SRAM, replace the 16-bit map
- * value of interest, and write the dword value back into device SRAM.
- */
-#define IWL49_SCD_TRANSLATE_TBL_OFFSET		0x500
-
-/* Find translation table dword to read/write for given queue */
-#define IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
-	((IWL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)
-
 #define IWL_SCD_TXFIFO_POS_TID			(0)
 #define IWL_SCD_TXFIFO_POS_RA			(4)
 #define IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK	(0x01FF)