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_DM 0x00000004 /* Device priv is a struct udevice * */ 20 21 /* Device information */ 22 struct stdio_dev { 23 int flags; /* Device flags: input/output/system */ 24 int ext; /* Supported extensions */ 25 char name[32]; /* Device name */ 26 27 /* GENERAL functions */ 28 29 int (*start)(struct stdio_dev *dev); /* To start the device */ 30 int (*stop)(struct stdio_dev *dev); /* To stop the device */ 31 32 /* OUTPUT functions */ 33 34 /* To put a char */ 35 void (*putc)(struct stdio_dev *dev, const char c); 36 /* To put a string (accelerator) */ 37 void (*puts)(struct stdio_dev *dev, const char *s); 38 39 /* INPUT functions */ 40 41 /* To test if a char is ready... */ 42 int (*tstc)(struct stdio_dev *dev); 43 int (*getc)(struct stdio_dev *dev); /* To get that char */ 44 45 /* Other functions */ 46 47 void *priv; /* Private extensions */ 48 struct list_head list; 49 }; 50 51 /* 52 * VIDEO EXTENSIONS 53 */ 54 #define VIDEO_FORMAT_RGB_INDEXED 0x0000 55 #define VIDEO_FORMAT_RGB_DIRECTCOLOR 0x0001 56 #define VIDEO_FORMAT_YUYV_4_4_4 0x0010 57 #define VIDEO_FORMAT_YUYV_4_2_2 0x0011 58 59 typedef struct { 60 void *address; /* Address of framebuffer */ 61 ushort width; /* Horizontal resolution */ 62 ushort height; /* Vertical resolution */ 63 uchar format; /* Format */ 64 uchar colors; /* Colors number or color depth */ 65 void (*setcolreg) (int, int, int, int); 66 void (*getcolreg) (int, void *); 67 } video_ext_t; 68 69 /* 70 * VARIABLES 71 */ 72 extern struct stdio_dev *stdio_devices[]; 73 extern char *stdio_names[MAX_FILES]; 74 75 /* 76 * PROTOTYPES 77 */ 78 int stdio_register (struct stdio_dev * dev); 79 int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp); 80 81 /** 82 * stdio_init_tables() - set up stdio tables ready for devices 83 * 84 * This does not add any devices, but just prepares stdio for use. 85 */ 86 int stdio_init_tables(void); 87 88 /** 89 * stdio_add_devices() - Add stdio devices to the table 90 * 91 * This makes calls to all the various subsystems that use stdio, to make 92 * them register with stdio. 93 */ 94 int stdio_add_devices(void); 95 96 /** 97 * stdio_init() - Sets up stdio ready for use 98 * 99 * This calls stdio_init_tables() and stdio_add_devices() 100 */ 101 int stdio_init(void); 102 103 void stdio_print_current_devices(void); 104 #if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) 105 int stdio_deregister(const char *devname, int force); 106 int stdio_deregister_dev(struct stdio_dev *dev, int force); 107 #endif 108 struct list_head* stdio_get_list(void); 109 struct stdio_dev* stdio_get_by_name(const char* name); 110 struct stdio_dev* stdio_clone(struct stdio_dev *dev); 111 112 #ifdef CONFIG_LCD 113 int drv_lcd_init (void); 114 #endif 115 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) 116 int drv_video_init (void); 117 #endif 118 #ifdef CONFIG_KEYBOARD 119 int drv_keyboard_init (void); 120 #endif 121 #ifdef CONFIG_USB_TTY 122 int drv_usbtty_init (void); 123 #endif 124 #ifdef CONFIG_NETCONSOLE 125 int drv_nc_init (void); 126 #endif 127 #ifdef CONFIG_JTAG_CONSOLE 128 int drv_jtag_console_init (void); 129 #endif 130 #ifdef CONFIG_CBMEM_CONSOLE 131 int cbmemc_init(void); 132 #endif 133 134 #endif 135