b136a1414c
Usually, the 16-bit rx length is read from scratch pad registers with two CMD52 transactions: SD8385: IF_SDIO_SCRATCH_OLD (0x80fe/0x80ff) SD8686/SD8688: IF_SDIO_SCRATCH (0x34/0x35) Alternatively, SD8688 firmware offers an enhanced method for driver to read an 8-bit rx length (in units) with a single CMD52: IF_SDIO_RX_UNIT 0x43 is read one time after firmware is ready. IF_SDIO_RX_LEN 0x42 is read every time when rx interrupt is received. Signed-off-by: Bing Zhao <bzhao@marvell.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* linux/drivers/net/wireless/libertas/if_sdio.h
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*
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* Copyright 2007 Pierre Ossman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#ifndef _LBS_IF_SDIO_H
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#define _LBS_IF_SDIO_H
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#define IF_SDIO_MODEL_8385 0x04
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#define IF_SDIO_MODEL_8686 0x0b
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#define IF_SDIO_MODEL_8688 0x10
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#define IF_SDIO_IOPORT 0x00
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#define IF_SDIO_H_INT_MASK 0x04
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#define IF_SDIO_H_INT_OFLOW 0x08
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#define IF_SDIO_H_INT_UFLOW 0x04
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#define IF_SDIO_H_INT_DNLD 0x02
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#define IF_SDIO_H_INT_UPLD 0x01
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#define IF_SDIO_H_INT_STATUS 0x05
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#define IF_SDIO_H_INT_RSR 0x06
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#define IF_SDIO_H_INT_STATUS2 0x07
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#define IF_SDIO_RD_BASE 0x10
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#define IF_SDIO_STATUS 0x20
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#define IF_SDIO_IO_RDY 0x08
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#define IF_SDIO_CIS_RDY 0x04
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#define IF_SDIO_UL_RDY 0x02
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#define IF_SDIO_DL_RDY 0x01
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#define IF_SDIO_C_INT_MASK 0x24
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#define IF_SDIO_C_INT_STATUS 0x28
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#define IF_SDIO_C_INT_RSR 0x2C
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#define IF_SDIO_SCRATCH 0x34
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#define IF_SDIO_SCRATCH_OLD 0x80fe
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#define IF_SDIO_FIRMWARE_OK 0xfedc
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#define IF_SDIO_RX_LEN 0x42
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#define IF_SDIO_RX_UNIT 0x43
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#define IF_SDIO_EVENT 0x80fc
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#define IF_SDIO_BLOCK_SIZE 256
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#endif
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