/* * 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 interrupt 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 #endifOverall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Colin McCabe | 456 | 92.12% | 1 | 25.00% |
| Randy Dunlap | 34 | 6.87% | 1 | 25.00% |
| John W. Linville | 4 | 0.81% | 1 | 25.00% |
| Lucas De Marchi | 1 | 0.20% | 1 | 25.00% |
| Total | 495 | 100.00% | 4 | 100.00% |