147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
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/* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
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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 version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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/*
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* SDIO CMUX API
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*/
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#ifndef __SDIO_CMUX__
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#define __SDIO_CMUX__
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#ifdef CONFIG_MSM_SDIO_CMUX
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enum {
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SDIO_CMUX_DATA_CTL_0,
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SDIO_CMUX_DATA_CTL_1,
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SDIO_CMUX_DATA_CTL_2,
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SDIO_CMUX_DATA_CTL_3,
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SDIO_CMUX_DATA_CTL_4,
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SDIO_CMUX_DATA_CTL_5,
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SDIO_CMUX_DATA_CTL_6,
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SDIO_CMUX_DATA_CTL_7,
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SDIO_CMUX_USB_CTL_0,
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SDIO_CMUX_USB_DUN_CTL_0,
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SDIO_CMUX_CSVT_CTL_0,
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SDIO_CMUX_NUM_CHANNELS
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};
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/*
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* sdio_cmux_open - Open the mux channel
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*
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* @id: Mux Channel id to be opened
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* @receive_cb: Notification when data arrives. Parameters are data received,
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* size of data, private context pointer.
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* @write_done: Notification when data is written. Parameters are data written,
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* size of data, private context pointer. Please note that the data
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* written pointer will always be NULL as the cmux makes an internal copy
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* of the data.
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* @priv: caller's private context pointer
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*/
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int sdio_cmux_open(const int id,
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void (*receive_cb)(void *, int, void *),
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void (*write_done)(void *, int, void *),
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void (*status_callback)(int, void *),
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void *priv);
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/*
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* sdio_cmux_close - Close the mux channel
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*
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* @id: Channel id to be closed
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*/
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int sdio_cmux_close(int id);
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/*
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* sdio_cmux_write_avail - Write space avaialable for this channel
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*
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* @id: Channel id to look for the available write space
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*/
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int sdio_cmux_write_avail(int id);
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/*
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* sdio_cmux_write - Write the data onto the CMUX channel
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*
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* @id: Channel id onto which the data has to be written
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* @data: Starting address of the data buffer to be written
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* @len: Length of the data to be written
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*/
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int sdio_cmux_write(int id, void *data, int len);
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/* these are used to get and set the IF sigs of a channel.
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* DTR and RTS can be set; DSR, CTS, CD and RI can be read.
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*/
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int sdio_cmux_tiocmget(int id);
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int sdio_cmux_tiocmset(int id, unsigned int set, unsigned int clear);
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/*
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* is_remote_open - Check whether the remote channel is open
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*
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* @id: Channel id to be checked
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*/
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int is_remote_open(int id);
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/*
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* sdio_cmux_is_channel_reset - Check whether the channel is in reset state
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*
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* @id: Channel id to be checked
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*/
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int sdio_cmux_is_channel_reset(int id);
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#else
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static int __maybe_unused sdio_cmux_open(const int id,
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void (*receive_cb)(void *, int, void *),
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void (*write_done)(void *, int, void *),
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void (*status_callback)(int, void *),
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void *priv)
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{
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return -ENODEV;
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}
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static int __maybe_unused sdio_cmux_close(int id)
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{
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return -ENODEV;
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}
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static int __maybe_unused sdio_cmux_write_avail(int id)
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{
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return -ENODEV;
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}
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static int __maybe_unused sdio_cmux_write(int id, void *data, int len)
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{
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return -ENODEV;
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}
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static int __maybe_unused sdio_cmux_tiocmget(int id)
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{
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return -ENODEV;
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}
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static int __maybe_unused sdio_cmux_tiocmset(int id, unsigned int set,
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unsigned int clear)
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{
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return -ENODEV;
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}
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static int __maybe_unused is_remote_open(int id)
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{
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return -ENODEV;
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}
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static int __maybe_unused sdio_cmux_is_channel_reset(int id)
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{
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return -ENODEV;
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}
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#endif
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#endif /* __SDIO_CMUX__ */
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