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[32]; /* Device name */ 27 28 /* GENERAL functions */ 29 30 int (*start)(struct stdio_dev *dev); /* To start the device */ 31 int (*stop)(struct stdio_dev *dev); /* To stop the device */ 32 33 /* OUTPUT functions */ 34 35 /* To put a char */ 36 void (*putc)(struct stdio_dev *dev, const char c); 37 /* To put a string (accelerator) */ 38 void (*puts)(struct stdio_dev *dev, const char *s); 39 40 /* INPUT functions */ 41 42 /* To test if a char is ready... */ 43 int (*tstc)(struct stdio_dev *dev); 44 int (*getc)(struct stdio_dev *dev); /* To get that char */ 45 46 /* Other functions */ 47 48 void *priv; /* Private extensions */ 49 struct list_head list; 50 }; 51 52 /* 53 * VIDEO EXTENSIONS 54 */ 55 #define VIDEO_FORMAT_RGB_INDEXED 0x0000 56 #define VIDEO_FORMAT_RGB_DIRECTCOLOR 0x0001 57 #define VIDEO_FORMAT_YUYV_4_4_4 0x0010 58 #define VIDEO_FORMAT_YUYV_4_2_2 0x0011 59 60 typedef struct { 61 void *address; /* Address of framebuffer */ 62 ushort width; /* Horizontal resolution */ 63 ushort height; /* Vertical resolution */ 64 uchar format; /* Format */ 65 uchar colors; /* Colors number or color depth */ 66 void (*setcolreg) (int, int, int, int); 67 void (*getcolreg) (int, void *); 68 } video_ext_t; 69 70 /* 71 * VARIABLES 72 */ 73 extern struct stdio_dev *stdio_devices[]; 74 extern char *stdio_names[MAX_FILES]; 75 76 /* 77 * PROTOTYPES 78 */ 79 int stdio_register (struct stdio_dev * dev); 80 int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp); 81 82 /** 83 * stdio_init_tables() - set up stdio tables ready for devices 84 * 85 * This does not add any devices, but just prepares stdio for use. 86 */ 87 int stdio_init_tables(void); 88 89 /** 90 * stdio_add_devices() - Add stdio devices to the table 91 * 92 * This makes calls to all the various subsystems that use stdio, to make 93 * them register with stdio. 94 */ 95 int stdio_add_devices(void); 96 97 /** 98 * stdio_init() - Sets up stdio ready for use 99 * 100 * This calls stdio_init_tables() and stdio_add_devices() 101 */ 102 int stdio_init(void); 103 104 void stdio_print_current_devices(void); 105 #ifdef CONFIG_SYS_STDIO_DEREGISTER 106 int stdio_deregister(const char *devname, int force); 107 int stdio_deregister_dev(struct stdio_dev *dev, int force); 108 #endif 109 struct list_head* stdio_get_list(void); 110 struct stdio_dev* stdio_get_by_name(const char* name); 111 struct stdio_dev* stdio_clone(struct stdio_dev *dev); 112 113 #ifdef CONFIG_LCD 114 int drv_lcd_init (void); 115 #endif 116 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) 117 int drv_video_init (void); 118 #endif 119 #ifdef CONFIG_KEYBOARD 120 int drv_keyboard_init (void); 121 #endif 122 #ifdef CONFIG_USB_TTY 123 int drv_usbtty_init (void); 124 #endif 125 #ifdef CONFIG_NETCONSOLE 126 int drv_nc_init (void); 127 #endif 128 #ifdef CONFIG_JTAG_CONSOLE 129 int drv_jtag_console_init (void); 130 #endif 131 #ifdef CONFIG_CBMEM_CONSOLE 132 int cbmemc_init(void); 133 #endif 134 135 #endif 136