include/stdio_dev.h

   1 /*
   2  * (C) Copyright 2000
   3  * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #ifndef _STDIO_DEV_H_
   9 #define _STDIO_DEV_H_
  10
  11 #include <linux/list.h>
  12
  13 /*
  14  * STDIO DEVICES
  15  */
  16
  17 #define DEV_FLAGS_INPUT  0x00000001     /* Device can be used as input  console */
  18 #define DEV_FLAGS_OUTPUT 0x00000002     /* Device can be used as output console */
  19 #define DEV_FLAGS_SYSTEM 0x80000000     /* Device is a system device            */
  20 #define DEV_EXT_VIDEO    0x00000001     /* Video extensions supported           */
  21
  22 /* Device information */
  23 struct stdio_dev {
  24         int     flags;                  /* Device flags: input/output/system    */
  25         int     ext;                    /* Supported extensions                 */
  26         char    name[16];               /* Device name                          */
  27
  28 /* GENERAL functions */
  29
  30         int (*start) (void);            /* To start the device                  */
  31         int (*stop) (void);             /* To stop the device                   */
  32
  33 /* OUTPUT functions */
  34
  35         void (*putc) (const char c);    /* To put a char                        */
  36         void (*puts) (const char *s);   /* To put a string (accelerator)        */
  37
  38 /* INPUT functions */
  39
  40         int (*tstc) (void);             /* To test if a char is ready...        */
  41         int (*getc) (void);             /* To get that char                     */
  42
  43 /* Other functions */
  44
  45         void *priv;                     /* Private extensions                   */
  46         struct list_head list;
  47 };
  48
  49 /*
  50  * VIDEO EXTENSIONS
  51  */
  52 #define VIDEO_FORMAT_RGB_INDEXED        0x0000
  53 #define VIDEO_FORMAT_RGB_DIRECTCOLOR    0x0001
  54 #define VIDEO_FORMAT_YUYV_4_4_4         0x0010
  55 #define VIDEO_FORMAT_YUYV_4_2_2         0x0011
  56
  57 typedef struct {
  58         void *address;                  /* Address of framebuffer               */
  59         ushort  width;                  /* Horizontal resolution                */
  60         ushort  height;                 /* Vertical resolution                  */
  61         uchar   format;                 /* Format                               */
  62         uchar   colors;                 /* Colors number or color depth         */
  63         void (*setcolreg) (int, int, int, int);
  64         void (*getcolreg) (int, void *);
  65 } video_ext_t;
  66
  67 /*
  68  * VARIABLES
  69  */
  70 extern struct stdio_dev *stdio_devices[];
  71 extern char *stdio_names[MAX_FILES];
  72
  73 /*
  74  * PROTOTYPES
  75  */
  76 int     stdio_register (struct stdio_dev * dev);
  77 int     stdio_init (void);
  78 void    stdio_print_current_devices(void);
  79 #ifdef CONFIG_SYS_STDIO_DEREGISTER
  80 int     stdio_deregister(const char *devname);
  81 #endif
  82 struct list_head* stdio_get_list(void);
  83 struct stdio_dev* stdio_get_by_name(const char* name);
  84 struct stdio_dev* stdio_clone(struct stdio_dev *dev);
  85
  86 #ifdef CONFIG_LCD
  87 int     drv_lcd_init (void);
  88 #endif
  89 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
  90 int     drv_video_init (void);
  91 #endif
  92 #ifdef CONFIG_KEYBOARD
  93 int     drv_keyboard_init (void);
  94 #endif
  95 #ifdef CONFIG_USB_TTY
  96 int     drv_usbtty_init (void);
  97 #endif
  98 #ifdef CONFIG_NETCONSOLE
  99 int     drv_nc_init (void);
 100 #endif
 101 #ifdef CONFIG_JTAG_CONSOLE
 102 int drv_jtag_console_init (void);
 103 #endif
 104 #ifdef CONFIG_CBMEM_CONSOLE
 105 int cbmemc_init(void);
 106 #endif
 107
 108 #endif