300 lines
8.9 KiB
C
300 lines
8.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/***************************************************************************
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* Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> *
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* *
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* Based on Logitech G13 driver (v0.4) *
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* Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> *
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* *
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***************************************************************************/
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#define PICOLCD_NAME "PicoLCD (graphic)"
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/* Report numbers */
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#define REPORT_ERROR_CODE 0x10 /* LCD: IN[16] */
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#define ERR_SUCCESS 0x00
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#define ERR_PARAMETER_MISSING 0x01
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#define ERR_DATA_MISSING 0x02
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#define ERR_BLOCK_READ_ONLY 0x03
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#define ERR_BLOCK_NOT_ERASABLE 0x04
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#define ERR_BLOCK_TOO_BIG 0x05
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#define ERR_SECTION_OVERFLOW 0x06
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#define ERR_INVALID_CMD_LEN 0x07
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#define ERR_INVALID_DATA_LEN 0x08
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#define REPORT_KEY_STATE 0x11 /* LCD: IN[2] */
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#define REPORT_IR_DATA 0x21 /* LCD: IN[63] */
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#define REPORT_EE_DATA 0x32 /* LCD: IN[63] */
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#define REPORT_MEMORY 0x41 /* LCD: IN[63] */
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#define REPORT_LED_STATE 0x81 /* LCD: OUT[1] */
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#define REPORT_BRIGHTNESS 0x91 /* LCD: OUT[1] */
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#define REPORT_CONTRAST 0x92 /* LCD: OUT[1] */
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#define REPORT_RESET 0x93 /* LCD: OUT[2] */
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#define REPORT_LCD_CMD 0x94 /* LCD: OUT[63] */
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#define REPORT_LCD_DATA 0x95 /* LCD: OUT[63] */
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#define REPORT_LCD_CMD_DATA 0x96 /* LCD: OUT[63] */
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#define REPORT_EE_READ 0xa3 /* LCD: OUT[63] */
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#define REPORT_EE_WRITE 0xa4 /* LCD: OUT[63] */
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#define REPORT_ERASE_MEMORY 0xb2 /* LCD: OUT[2] */
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#define REPORT_READ_MEMORY 0xb3 /* LCD: OUT[3] */
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#define REPORT_WRITE_MEMORY 0xb4 /* LCD: OUT[63] */
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#define REPORT_SPLASH_RESTART 0xc1 /* LCD: OUT[1] */
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#define REPORT_EXIT_KEYBOARD 0xef /* LCD: OUT[2] */
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#define REPORT_VERSION 0xf1 /* LCD: IN[2],OUT[1] Bootloader: IN[2],OUT[1] */
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#define REPORT_BL_ERASE_MEMORY 0xf2 /* Bootloader: IN[36],OUT[4] */
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#define REPORT_BL_READ_MEMORY 0xf3 /* Bootloader: IN[36],OUT[4] */
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#define REPORT_BL_WRITE_MEMORY 0xf4 /* Bootloader: IN[36],OUT[36] */
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#define REPORT_DEVID 0xf5 /* LCD: IN[5], OUT[1] Bootloader: IN[5],OUT[1] */
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#define REPORT_SPLASH_SIZE 0xf6 /* LCD: IN[4], OUT[1] */
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#define REPORT_HOOK_VERSION 0xf7 /* LCD: IN[2], OUT[1] */
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#define REPORT_EXIT_FLASHER 0xff /* Bootloader: OUT[2] */
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/* Description of in-progress IO operation, used for operations
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* that trigger response from device */
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struct picolcd_pending {
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struct hid_report *out_report;
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struct hid_report *in_report;
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struct completion ready;
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int raw_size;
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u8 raw_data[64];
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};
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#define PICOLCD_KEYS 17
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/* Per device data structure */
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struct picolcd_data {
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struct hid_device *hdev;
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#ifdef CONFIG_DEBUG_FS
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struct dentry *debug_reset;
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struct dentry *debug_eeprom;
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struct dentry *debug_flash;
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struct mutex mutex_flash;
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int addr_sz;
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#endif
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u8 version[2];
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unsigned short opmode_delay;
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/* input stuff */
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u8 pressed_keys[2];
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struct input_dev *input_keys;
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#ifdef CONFIG_HID_PICOLCD_CIR
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struct rc_dev *rc_dev;
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#endif
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unsigned short keycode[PICOLCD_KEYS];
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#ifdef CONFIG_HID_PICOLCD_FB
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/* Framebuffer stuff */
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struct fb_info *fb_info;
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#endif /* CONFIG_HID_PICOLCD_FB */
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#ifdef CONFIG_HID_PICOLCD_LCD
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struct lcd_device *lcd;
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u8 lcd_contrast;
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#endif /* CONFIG_HID_PICOLCD_LCD */
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#ifdef CONFIG_HID_PICOLCD_BACKLIGHT
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struct backlight_device *backlight;
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u8 lcd_brightness;
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u8 lcd_power;
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#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
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#ifdef CONFIG_HID_PICOLCD_LEDS
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/* LED stuff */
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u8 led_state;
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struct led_classdev *led[8];
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#endif /* CONFIG_HID_PICOLCD_LEDS */
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/* Housekeeping stuff */
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spinlock_t lock;
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struct mutex mutex;
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struct picolcd_pending *pending;
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int status;
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#define PICOLCD_BOOTLOADER 1
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#define PICOLCD_FAILED 2
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#define PICOLCD_CIR_SHUN 4
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};
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#ifdef CONFIG_HID_PICOLCD_FB
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struct picolcd_fb_data {
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/* Framebuffer stuff */
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spinlock_t lock;
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struct picolcd_data *picolcd;
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u8 update_rate;
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u8 bpp;
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u8 force;
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u8 ready;
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u8 *vbitmap; /* local copy of what was sent to PicoLCD */
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u8 *bitmap; /* framebuffer */
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};
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#endif /* CONFIG_HID_PICOLCD_FB */
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/* Find a given report */
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#define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT)
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#define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT)
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struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir);
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#ifdef CONFIG_DEBUG_FS
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void picolcd_debug_out_report(struct picolcd_data *data,
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struct hid_device *hdev, struct hid_report *report);
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#define hid_hw_request(a, b, c) \
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do { \
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picolcd_debug_out_report(hid_get_drvdata(a), a, b); \
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hid_hw_request(a, b, c); \
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} while (0)
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void picolcd_debug_raw_event(struct picolcd_data *data,
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struct hid_device *hdev, struct hid_report *report,
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u8 *raw_data, int size);
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void picolcd_init_devfs(struct picolcd_data *data,
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struct hid_report *eeprom_r, struct hid_report *eeprom_w,
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struct hid_report *flash_r, struct hid_report *flash_w,
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struct hid_report *reset);
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void picolcd_exit_devfs(struct picolcd_data *data);
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#else
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static inline void picolcd_debug_out_report(struct picolcd_data *data,
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struct hid_device *hdev, struct hid_report *report)
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{
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}
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static inline void picolcd_debug_raw_event(struct picolcd_data *data,
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struct hid_device *hdev, struct hid_report *report,
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u8 *raw_data, int size)
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{
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}
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static inline void picolcd_init_devfs(struct picolcd_data *data,
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struct hid_report *eeprom_r, struct hid_report *eeprom_w,
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struct hid_report *flash_r, struct hid_report *flash_w,
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struct hid_report *reset)
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{
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}
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static inline void picolcd_exit_devfs(struct picolcd_data *data)
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{
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}
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#endif /* CONFIG_DEBUG_FS */
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#ifdef CONFIG_HID_PICOLCD_FB
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int picolcd_fb_reset(struct picolcd_data *data, int clear);
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int picolcd_init_framebuffer(struct picolcd_data *data);
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void picolcd_exit_framebuffer(struct picolcd_data *data);
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void picolcd_fb_refresh(struct picolcd_data *data);
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#define picolcd_fbinfo(d) ((d)->fb_info)
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#else
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static inline int picolcd_fb_reset(struct picolcd_data *data, int clear)
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{
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return 0;
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}
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static inline int picolcd_init_framebuffer(struct picolcd_data *data)
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{
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return 0;
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}
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static inline void picolcd_exit_framebuffer(struct picolcd_data *data)
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{
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}
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static inline void picolcd_fb_refresh(struct picolcd_data *data)
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{
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}
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#define picolcd_fbinfo(d) NULL
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#endif /* CONFIG_HID_PICOLCD_FB */
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#ifdef CONFIG_HID_PICOLCD_BACKLIGHT
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int picolcd_init_backlight(struct picolcd_data *data,
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struct hid_report *report);
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void picolcd_exit_backlight(struct picolcd_data *data);
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int picolcd_resume_backlight(struct picolcd_data *data);
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void picolcd_suspend_backlight(struct picolcd_data *data);
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#else
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static inline int picolcd_init_backlight(struct picolcd_data *data,
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struct hid_report *report)
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{
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return 0;
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}
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static inline void picolcd_exit_backlight(struct picolcd_data *data)
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{
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}
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static inline int picolcd_resume_backlight(struct picolcd_data *data)
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{
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return 0;
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}
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static inline void picolcd_suspend_backlight(struct picolcd_data *data)
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{
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}
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#endif /* CONFIG_HID_PICOLCD_BACKLIGHT */
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#ifdef CONFIG_HID_PICOLCD_LCD
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int picolcd_init_lcd(struct picolcd_data *data,
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struct hid_report *report);
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void picolcd_exit_lcd(struct picolcd_data *data);
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int picolcd_resume_lcd(struct picolcd_data *data);
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#else
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static inline int picolcd_init_lcd(struct picolcd_data *data,
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struct hid_report *report)
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{
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return 0;
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}
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static inline void picolcd_exit_lcd(struct picolcd_data *data)
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{
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}
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static inline int picolcd_resume_lcd(struct picolcd_data *data)
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{
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return 0;
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}
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#endif /* CONFIG_HID_PICOLCD_LCD */
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#ifdef CONFIG_HID_PICOLCD_LEDS
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int picolcd_init_leds(struct picolcd_data *data,
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struct hid_report *report);
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void picolcd_exit_leds(struct picolcd_data *data);
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void picolcd_leds_set(struct picolcd_data *data);
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#else
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static inline int picolcd_init_leds(struct picolcd_data *data,
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struct hid_report *report)
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{
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return 0;
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}
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static inline void picolcd_exit_leds(struct picolcd_data *data)
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{
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}
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static inline void picolcd_leds_set(struct picolcd_data *data)
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{
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}
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#endif /* CONFIG_HID_PICOLCD_LEDS */
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#ifdef CONFIG_HID_PICOLCD_CIR
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int picolcd_raw_cir(struct picolcd_data *data,
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struct hid_report *report, u8 *raw_data, int size);
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int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report);
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void picolcd_exit_cir(struct picolcd_data *data);
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#else
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static inline int picolcd_raw_cir(struct picolcd_data *data,
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struct hid_report *report, u8 *raw_data, int size)
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{
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return 1;
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}
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static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
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{
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return 0;
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}
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static inline void picolcd_exit_cir(struct picolcd_data *data)
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{
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}
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#endif /* CONFIG_HID_PICOLCD_CIR */
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int picolcd_reset(struct hid_device *hdev);
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struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev,
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int report_id, const u8 *raw_data, int size);
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