drivers/misc/mediatek/misc_via/modem_sdio.h

   1 /*
   2  * drivers/mmc/card/modem_sdio.h
   3  *
   4  * VIA CBP SDIO driver for Linux
   5  *
   6  * Copyright (C) 2009 VIA TELECOM Corporation, Inc.
   7  * Author: VIA TELECOM Corporation, Inc.
   8  *
   9  * This package is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16  */
  17 #ifndef MODEM_SDIO_H
  18 #define MODEM_SDIO_H
  19
  20 #define SDIO_TTY_NR             6       /* Number of UARTs this driver can handle */
  21 #include "cbp_sdio.h"
  22
  23 /*SDIO buffer in lens*/
  24 #define SDIO_PPP_BUF_IN_MAX_NUM         100
  25 #define SDIO_ETS_BUF_IN_MAX_NUM         500
  26 #define SDIO_IFS_BUF_IN_MAX_NUM         100
  27 #define SDIO_AT_BUF_IN_MAX_NUM          100
  28 #define SDIO_PCV_BUF_IN_MAX_NUM         100
  29 #define SDIO_DEF_BUF_IN_MAX_NUM         100
  30 #define SDIO_BUF_IN_MAX_SIZE                    64512     /*max buffer in size = 63K*/
  31
  32 #define MODEM_FC_PRINT_MAX                      3
  33 #define SDIO_FUNC_1                                     2
  34 struct sdio_msg_head
  35 {
  36         unsigned char start_flag;       /*start flag(1), little endian*/
  37         unsigned char chanInfo;         /*channel id*/
  38         unsigned char tranHi;           /*len High byte, little endian*/
  39         unsigned char tranLow;          /*len low byte, little endian*/
  40 };
  41
  42 struct sdio_msg
  43 {
  44         struct sdio_msg_head  head;
  45         unsigned char buffer[4096];
  46 };
  47
  48 typedef enum{
  49         SFLOW_CTRL_DISABLE = 0,
  50         SFLOW_CTRL_ENABLE
  51 }Sflow_ctrl_state;
  52
  53 struct sdio_modem_port;
  54 struct sdio_modem_port {
  55         struct sdio_modem *modem;
  56         struct sdio_func        *func;
  57         struct tty_port port;
  58         struct kref             kref;
  59         spinlock_t              write_lock;
  60         struct tty_struct       *tty;
  61         unsigned int            index;
  62
  63         struct kfifo            transmit_fifo;
  64         const char  *name;
  65         char work_name[64];
  66         struct workqueue_struct *write_q;
  67         struct work_struct      write_work;
  68         struct device dev;
  69
  70         struct mutex            sdio_buf_in_mutex;
  71         struct list_head        sdio_buf_in_list;
  72         unsigned char           sdio_buf_in;
  73         unsigned int            sdio_buf_in_num;                        /*buffer in list num*/
  74         unsigned int            sdio_buf_in_max_num;    /*buffer in list max num*/
  75         unsigned int            sdio_buf_in_size;                       /*buffer in size*/
  76
  77         wait_queue_head_t sflow_ctrl_wait_q;
  78         atomic_t sflow_ctrl_state;
  79         struct semaphore write_sem;
  80
  81         /* Settings for the port */
  82         int rts_state;  /* Handshaking pins (outputs) */
  83         int dtr_state;
  84         int cts_state;  /* Handshaking pins (inputs) */
  85         int dsr_state;
  86         spinlock_t inception_lock;
  87         int inception;
  88 };
  89
  90 struct sdio_buf_in_packet{
  91         struct list_head        node;
  92         unsigned int            size;
  93         unsigned char           *buffer;
  94 };
  95
  96 struct ctrl_port_msg{
  97         struct sdio_msg_head  head;
  98         unsigned char id_hi;
  99         unsigned char id_low;
 100         unsigned char chan_num;
 101         unsigned char option;
 102 };
 103
 104 struct sdio_modem_ctrl_port{
 105         struct ctrl_port_msg chan_ctrl_msg;
 106         unsigned int chan_state;
 107         unsigned int msg_id;
 108         wait_queue_head_t sflow_ctrl_wait_q;
 109         atomic_t sflow_ctrl_state;
 110 };
 111
 112 struct sdio_modem{
 113         struct sdio_modem_port *port[SDIO_TTY_NR];
 114         struct sdio_modem_ctrl_port *ctrl_port;
 115         struct sdio_func        *func;
 116         struct sdio_msg *msg;
 117         unsigned char *trans_buffer;
 118         struct cbp_platform_data *cbp_data;
 119         struct semaphore sem;
 120         unsigned int data_length;
 121 };
 122
 123 extern int sdio_log_level;
 124
 125 #define LOG_ERR                 0
 126 #define LOG_INFO                1
 127 #define LOG_NOTICE              2
 128 #define LOG_NOTICE2             3
 129 #define LOG_DEBUG               4
 130
 131 #define LOGPRT(lvl,x...)  do{ \
 132     if(lvl < (sdio_log_level + 1)) \
 133         printk("[SDIO MODEM] " x); \
 134     }while(0)
 135
 136 extern int  modem_sdio_init(struct cbp_platform_data *pdata);
 137 extern void  modem_sdio_exit(void);
 138 extern int modem_err_indication_usr(int revocery);
 139 extern int modem_ipoh_indication_usr(void);
 140
 141 #endif