| /* |
| * linux/drivers/net/wireless/libertas/if_spi.c |
| * |
| * Driver for Marvell SPI WLAN cards. |
| * |
| * Copyright 2008 Analog Devices Inc. |
| * |
| * Authors: |
| * Andrey Yurovsky <andrey@cozybit.com> |
| * Colin McCabe <colin@cozybit.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at |
| * your option) any later version. |
| */ |
| |
| #ifndef _LBS_IF_SPI_H_ |
| #define _LBS_IF_SPI_H_ |
| |
| #define IPFIELD_ALIGN_OFFSET 2 |
| #define IF_SPI_CMD_BUF_SIZE 2400 |
| |
| /***************** Firmware *****************/ |
| |
| #define IF_SPI_FW_NAME_MAX 30 |
| |
| #define MAX_MAIN_FW_LOAD_CRC_ERR 10 |
| |
| /* Chunk size when loading the helper firmware */ |
| #define HELPER_FW_LOAD_CHUNK_SZ 64 |
| |
| /* Value to write to indicate end of helper firmware dnld */ |
| #define FIRMWARE_DNLD_OK 0x0000 |
| |
| /* Value to check once the main firmware is downloaded */ |
| #define SUCCESSFUL_FW_DOWNLOAD_MAGIC 0x88888888 |
| |
| /***************** SPI Interface Unit *****************/ |
| /* Masks used in SPI register read/write operations */ |
| #define IF_SPI_READ_OPERATION_MASK 0x0 |
| #define IF_SPI_WRITE_OPERATION_MASK 0x8000 |
| |
| /* SPI register offsets. 4-byte aligned. */ |
| #define IF_SPI_DEVICEID_CTRL_REG 0x00 /* DeviceID controller reg */ |
| #define IF_SPI_IO_READBASE_REG 0x04 /* Read I/O base reg */ |
| #define IF_SPI_IO_WRITEBASE_REG 0x08 /* Write I/O base reg */ |
| #define IF_SPI_IO_RDWRPORT_REG 0x0C /* Read/Write I/O port reg */ |
| |
| #define IF_SPI_CMD_READBASE_REG 0x10 /* Read command base reg */ |
| #define IF_SPI_CMD_WRITEBASE_REG 0x14 /* Write command base reg */ |
| #define IF_SPI_CMD_RDWRPORT_REG 0x18 /* Read/Write command port reg */ |
| |
| #define IF_SPI_DATA_READBASE_REG 0x1C /* Read data base reg */ |
| #define IF_SPI_DATA_WRITEBASE_REG 0x20 /* Write data base reg */ |
| #define IF_SPI_DATA_RDWRPORT_REG 0x24 /* Read/Write data port reg */ |
| |
| #define IF_SPI_SCRATCH_1_REG 0x28 /* Scratch reg 1 */ |
| #define IF_SPI_SCRATCH_2_REG 0x2C /* Scratch reg 2 */ |
| #define IF_SPI_SCRATCH_3_REG 0x30 /* Scratch reg 3 */ |
| #define IF_SPI_SCRATCH_4_REG 0x34 /* Scratch reg 4 */ |
| |
| #define IF_SPI_TX_FRAME_SEQ_NUM_REG 0x38 /* Tx frame sequence number reg */ |
| #define IF_SPI_TX_FRAME_STATUS_REG 0x3C /* Tx frame status reg */ |
| |
| #define IF_SPI_HOST_INT_CTRL_REG 0x40 /* Host interrupt controller reg */ |
| |
| #define IF_SPI_CARD_INT_CAUSE_REG 0x44 /* Card interrupt cause reg */ |
| #define IF_SPI_CARD_INT_STATUS_REG 0x48 /* Card interupt status reg */ |
| #define IF_SPI_CARD_INT_EVENT_MASK_REG 0x4C /* Card interrupt event mask */ |
| #define IF_SPI_CARD_INT_STATUS_MASK_REG 0x50 /* Card interrupt status mask */ |
| |
| #define IF_SPI_CARD_INT_RESET_SELECT_REG 0x54 /* Card interrupt reset select */ |
| |
| #define IF_SPI_HOST_INT_CAUSE_REG 0x58 /* Host interrupt cause reg */ |
| #define IF_SPI_HOST_INT_STATUS_REG 0x5C /* Host interrupt status reg */ |
| #define IF_SPI_HOST_INT_EVENT_MASK_REG 0x60 /* Host interrupt event mask */ |
| #define IF_SPI_HOST_INT_STATUS_MASK_REG 0x64 /* Host interrupt status mask */ |
| #define IF_SPI_HOST_INT_RESET_SELECT_REG 0x68 /* Host interrupt reset select */ |
| |
| #define IF_SPI_DELAY_READ_REG 0x6C /* Delay read reg */ |
| #define IF_SPI_SPU_BUS_MODE_REG 0x70 /* SPU BUS mode reg */ |
| |
| /***************** IF_SPI_DEVICEID_CTRL_REG *****************/ |
| #define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_ID(dc) ((dc & 0xffff0000)>>16) |
| #define IF_SPI_DEVICEID_CTRL_REG_TO_CARD_REV(dc) (dc & 0x000000ff) |
| |
| /***************** IF_SPI_HOST_INT_CTRL_REG *****************/ |
| /** Host Interrupt Control bit : Wake up */ |
| #define IF_SPI_HICT_WAKE_UP (1<<0) |
| /** Host Interrupt Control bit : WLAN ready */ |
| #define IF_SPI_HICT_WLAN_READY (1<<1) |
| /*#define IF_SPI_HICT_FIFO_FIRST_HALF_EMPTY (1<<2) */ |
| /*#define IF_SPI_HICT_FIFO_SECOND_HALF_EMPTY (1<<3) */ |
| /*#define IF_SPI_HICT_IRQSRC_WLAN (1<<4) */ |
| /** Host Interrupt Control bit : Tx auto download */ |
| #define IF_SPI_HICT_TX_DOWNLOAD_OVER_AUTO (1<<5) |
| /** Host Interrupt Control bit : Rx auto upload */ |
| #define IF_SPI_HICT_RX_UPLOAD_OVER_AUTO (1<<6) |
| /** Host Interrupt Control bit : Command auto download */ |
| #define IF_SPI_HICT_CMD_DOWNLOAD_OVER_AUTO (1<<7) |
| /** Host Interrupt Control bit : Command auto upload */ |
| #define IF_SPI_HICT_CMD_UPLOAD_OVER_AUTO (1<<8) |
| |
| /***************** IF_SPI_CARD_INT_CAUSE_REG *****************/ |
| /** Card Interrupt Case bit : Tx download over */ |
| #define IF_SPI_CIC_TX_DOWNLOAD_OVER (1<<0) |
| /** Card Interrupt Case bit : Rx upload over */ |
| #define IF_SPI_CIC_RX_UPLOAD_OVER (1<<1) |
| /** Card Interrupt Case bit : Command download over */ |
| #define IF_SPI_CIC_CMD_DOWNLOAD_OVER (1<<2) |
| /** Card Interrupt Case bit : Host event */ |
| #define IF_SPI_CIC_HOST_EVENT (1<<3) |
| /** Card Interrupt Case bit : Command upload over */ |
| #define IF_SPI_CIC_CMD_UPLOAD_OVER (1<<4) |
| /** Card Interrupt Case bit : Power down */ |
| #define IF_SPI_CIC_POWER_DOWN (1<<5) |
| |
| /***************** IF_SPI_CARD_INT_STATUS_REG *****************/ |
| #define IF_SPI_CIS_TX_DOWNLOAD_OVER (1<<0) |
| #define IF_SPI_CIS_RX_UPLOAD_OVER (1<<1) |
| #define IF_SPI_CIS_CMD_DOWNLOAD_OVER (1<<2) |
| #define IF_SPI_CIS_HOST_EVENT (1<<3) |
| #define IF_SPI_CIS_CMD_UPLOAD_OVER (1<<4) |
| #define IF_SPI_CIS_POWER_DOWN (1<<5) |
| |
| /***************** IF_SPI_HOST_INT_CAUSE_REG *****************/ |
| #define IF_SPI_HICU_TX_DOWNLOAD_RDY (1<<0) |
| #define IF_SPI_HICU_RX_UPLOAD_RDY (1<<1) |
| #define IF_SPI_HICU_CMD_DOWNLOAD_RDY (1<<2) |
| #define IF_SPI_HICU_CARD_EVENT (1<<3) |
| #define IF_SPI_HICU_CMD_UPLOAD_RDY (1<<4) |
| #define IF_SPI_HICU_IO_WR_FIFO_OVERFLOW (1<<5) |
| #define IF_SPI_HICU_IO_RD_FIFO_UNDERFLOW (1<<6) |
| #define IF_SPI_HICU_DATA_WR_FIFO_OVERFLOW (1<<7) |
| #define IF_SPI_HICU_DATA_RD_FIFO_UNDERFLOW (1<<8) |
| #define IF_SPI_HICU_CMD_WR_FIFO_OVERFLOW (1<<9) |
| #define IF_SPI_HICU_CMD_RD_FIFO_UNDERFLOW (1<<10) |
| |
| /***************** IF_SPI_HOST_INT_STATUS_REG *****************/ |
| /** Host Interrupt Status bit : Tx download ready */ |
| #define IF_SPI_HIST_TX_DOWNLOAD_RDY (1<<0) |
| /** Host Interrupt Status bit : Rx upload ready */ |
| #define IF_SPI_HIST_RX_UPLOAD_RDY (1<<1) |
| /** Host Interrupt Status bit : Command download ready */ |
| #define IF_SPI_HIST_CMD_DOWNLOAD_RDY (1<<2) |
| /** Host Interrupt Status bit : Card event */ |
| #define IF_SPI_HIST_CARD_EVENT (1<<3) |
| /** Host Interrupt Status bit : Command upload ready */ |
| #define IF_SPI_HIST_CMD_UPLOAD_RDY (1<<4) |
| /** Host Interrupt Status bit : I/O write FIFO overflow */ |
| #define IF_SPI_HIST_IO_WR_FIFO_OVERFLOW (1<<5) |
| /** Host Interrupt Status bit : I/O read FIFO underflow */ |
| #define IF_SPI_HIST_IO_RD_FIFO_UNDRFLOW (1<<6) |
| /** Host Interrupt Status bit : Data write FIFO overflow */ |
| #define IF_SPI_HIST_DATA_WR_FIFO_OVERFLOW (1<<7) |
| /** Host Interrupt Status bit : Data read FIFO underflow */ |
| #define IF_SPI_HIST_DATA_RD_FIFO_UNDERFLOW (1<<8) |
| /** Host Interrupt Status bit : Command write FIFO overflow */ |
| #define IF_SPI_HIST_CMD_WR_FIFO_OVERFLOW (1<<9) |
| /** Host Interrupt Status bit : Command read FIFO underflow */ |
| #define IF_SPI_HIST_CMD_RD_FIFO_UNDERFLOW (1<<10) |
| |
| /***************** IF_SPI_HOST_INT_STATUS_MASK_REG *****************/ |
| /** Host Interrupt Status Mask bit : Tx download ready */ |
| #define IF_SPI_HISM_TX_DOWNLOAD_RDY (1<<0) |
| /** Host Interrupt Status Mask bit : Rx upload ready */ |
| #define IF_SPI_HISM_RX_UPLOAD_RDY (1<<1) |
| /** Host Interrupt Status Mask bit : Command download ready */ |
| #define IF_SPI_HISM_CMD_DOWNLOAD_RDY (1<<2) |
| /** Host Interrupt Status Mask bit : Card event */ |
| #define IF_SPI_HISM_CARDEVENT (1<<3) |
| /** Host Interrupt Status Mask bit : Command upload ready */ |
| #define IF_SPI_HISM_CMD_UPLOAD_RDY (1<<4) |
| /** Host Interrupt Status Mask bit : I/O write FIFO overflow */ |
| #define IF_SPI_HISM_IO_WR_FIFO_OVERFLOW (1<<5) |
| /** Host Interrupt Status Mask bit : I/O read FIFO underflow */ |
| #define IF_SPI_HISM_IO_RD_FIFO_UNDERFLOW (1<<6) |
| /** Host Interrupt Status Mask bit : Data write FIFO overflow */ |
| #define IF_SPI_HISM_DATA_WR_FIFO_OVERFLOW (1<<7) |
| /** Host Interrupt Status Mask bit : Data write FIFO underflow */ |
| #define IF_SPI_HISM_DATA_RD_FIFO_UNDERFLOW (1<<8) |
| /** Host Interrupt Status Mask bit : Command write FIFO overflow */ |
| #define IF_SPI_HISM_CMD_WR_FIFO_OVERFLOW (1<<9) |
| /** Host Interrupt Status Mask bit : Command write FIFO underflow */ |
| #define IF_SPI_HISM_CMD_RD_FIFO_UNDERFLOW (1<<10) |
| |
| /***************** IF_SPI_SPU_BUS_MODE_REG *****************/ |
| /* SCK edge on which the WLAN module outputs data on MISO */ |
| #define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_FALLING 0x8 |
| #define IF_SPI_BUS_MODE_SPI_CLOCK_PHASE_RISING 0x0 |
| |
| /* In a SPU read operation, there is a delay between writing the SPU |
| * register name and getting back data from the WLAN module. |
| * This can be specified in terms of nanoseconds or in terms of dummy |
| * clock cycles which the master must output before receiving a response. */ |
| #define IF_SPI_BUS_MODE_DELAY_METHOD_DUMMY_CLOCK 0x4 |
| #define IF_SPI_BUS_MODE_DELAY_METHOD_TIMED 0x0 |
| |
| /* Some different modes of SPI operation */ |
| #define IF_SPI_BUS_MODE_8_BIT_ADDRESS_16_BIT_DATA 0x00 |
| #define IF_SPI_BUS_MODE_8_BIT_ADDRESS_32_BIT_DATA 0x01 |
| #define IF_SPI_BUS_MODE_16_BIT_ADDRESS_16_BIT_DATA 0x02 |
| #define IF_SPI_BUS_MODE_16_BIT_ADDRESS_32_BIT_DATA 0x03 |
| |
| #endif |
