drivers/input/touchscreen/goodix.h
Source file repositories/reference/linux-study-clean/drivers/input/touchscreen/goodix.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/input/touchscreen/goodix.h- Extension
.h- Size
- 3526 bytes
- Lines
- 120
- Domain
- Driver Families
- Bucket
- drivers/input
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/gpio/consumer.hlinux/i2c.hlinux/input.hlinux/input/mt.hlinux/input/touchscreen.hlinux/regulator/consumer.h
Detected Declarations
struct goodix_ts_datastruct goodix_chip_datastruct goodix_ts_dataenum goodix_irq_pin_access_method
Annotated Snippet
struct goodix_chip_data {
u16 config_addr;
int config_len;
int (*check_config)(struct goodix_ts_data *ts, const u8 *cfg, int len);
void (*calc_config_checksum)(struct goodix_ts_data *ts);
};
struct goodix_ts_data {
struct i2c_client *client;
struct input_dev *input_dev;
struct input_dev *input_pen;
const struct goodix_chip_data *chip;
const char *firmware_name;
struct touchscreen_properties prop;
unsigned int max_touch_num;
unsigned int int_trigger_type;
struct regulator *avdd28;
struct regulator *vddio;
struct gpio_desc *gpiod_int;
struct gpio_desc *gpiod_rst;
int gpio_count;
int gpio_int_idx;
char id[GOODIX_ID_MAX_LEN + 1];
char cfg_name[64];
u16 version;
bool reset_controller_at_probe;
bool load_cfg_from_disk;
int pen_input_registered;
struct completion firmware_loading_complete;
unsigned long irq_flags;
enum goodix_irq_pin_access_method irq_pin_access_method;
unsigned int contact_size;
u8 config[GOODIX_CONFIG_MAX_LENGTH];
unsigned short keymap[GOODIX_MAX_KEYS];
u8 main_clk[GOODIX_MAIN_CLK_LEN];
int bak_ref_len;
u8 *bak_ref;
};
int goodix_i2c_read(struct i2c_client *client, u16 reg, u8 *buf, int len);
int goodix_i2c_write(struct i2c_client *client, u16 reg, const u8 *buf, int len);
int goodix_i2c_write_u8(struct i2c_client *client, u16 reg, u8 value);
int goodix_send_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len);
int goodix_int_sync(struct goodix_ts_data *ts);
int goodix_reset_no_int_sync(struct goodix_ts_data *ts);
int goodix_firmware_check(struct goodix_ts_data *ts);
bool goodix_handle_fw_request(struct goodix_ts_data *ts);
void goodix_save_bak_ref(struct goodix_ts_data *ts);
#endif
Annotation
- Immediate include surface: `linux/gpio/consumer.h`, `linux/i2c.h`, `linux/input.h`, `linux/input/mt.h`, `linux/input/touchscreen.h`, `linux/regulator/consumer.h`.
- Detected declarations: `struct goodix_ts_data`, `struct goodix_chip_data`, `struct goodix_ts_data`, `enum goodix_irq_pin_access_method`.
- Atlas domain: Driver Families / drivers/input.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.