// SPDX-License-Identifier: GPL-2.0 /* * Fintek F81232 USB to serial adaptor driver * Fintek F81532A/534A/535/536 USB to 2/4/8/12 serial adaptor driver * * Copyright (C) 2012 Greg Kroah-Hartman ([email protected]) * Copyright (C) 2012 Linux Foundation */ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/slab.h> #include <linux/tty.h> #include <linux/tty_driver.h> #include <linux/tty_flip.h> #include <linux/serial.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/mutex.h> #include <linux/uaccess.h> #include <linux/usb.h> #include <linux/usb/serial.h> #include <linux/serial_reg.h> #define F81232_ID … #define F81534A_SERIES_ID … #define F81534A_CTRL_ID … static const struct usb_device_id f81232_id_table[] = …; static const struct usb_device_id f81534a_id_table[] = …; static const struct usb_device_id f81534a_ctrl_id_table[] = …; static const struct usb_device_id combined_id_table[] = …; MODULE_DEVICE_TABLE(usb, combined_id_table); /* Maximum baudrate for F81232 */ #define F81232_MAX_BAUDRATE … #define F81232_DEF_BAUDRATE … /* USB Control EP parameter */ #define F81232_REGISTER_REQUEST … #define F81232_GET_REGISTER … #define F81232_SET_REGISTER … #define F81534A_ACCESS_REG_RETRY … #define SERIAL_BASE_ADDRESS … #define RECEIVE_BUFFER_REGISTER … #define INTERRUPT_ENABLE_REGISTER … #define FIFO_CONTROL_REGISTER … #define LINE_CONTROL_REGISTER … #define MODEM_CONTROL_REGISTER … #define LINE_STATUS_REGISTER … #define MODEM_STATUS_REGISTER … /* * F81232 Clock registers (106h) * * Bit1-0: Clock source selector * 00: 1.846MHz. * 01: 18.46MHz. * 10: 24MHz. * 11: 14.77MHz. */ #define F81232_CLK_REGISTER … #define F81232_CLK_1_846_MHZ … #define F81232_CLK_18_46_MHZ … #define F81232_CLK_24_MHZ … #define F81232_CLK_14_77_MHZ … #define F81232_CLK_MASK … #define F81534A_MODE_REG … #define F81534A_TRIGGER_MASK … #define F81534A_TRIGGER_MULTIPLE_4X … #define F81534A_FIFO_128BYTE … /* Serial port self GPIO control, 2bytes [control&output data][input data] */ #define F81534A_GPIO_REG … #define F81534A_GPIO_MODE2_DIR … #define F81534A_GPIO_MODE1_DIR … #define F81534A_GPIO_MODE0_DIR … #define F81534A_GPIO_MODE2_OUTPUT … #define F81534A_GPIO_MODE1_OUTPUT … #define F81534A_GPIO_MODE0_OUTPUT … #define F81534A_CTRL_CMD_ENABLE_PORT … struct f81232_private { … }; static u32 const baudrate_table[] = …; static u8 const clock_table[] = …; static int calc_baud_divisor(speed_t baudrate, speed_t clockrate) { … } static int f81232_get_register(struct usb_serial_port *port, u16 reg, u8 *val) { … } static int f81232_set_register(struct usb_serial_port *port, u16 reg, u8 val) { … } static int f81232_set_mask_register(struct usb_serial_port *port, u16 reg, u8 mask, u8 val) { … } static void f81232_read_msr(struct usb_serial_port *port) { … } static int f81232_set_mctrl(struct usb_serial_port *port, unsigned int set, unsigned int clear) { … } static void f81232_update_line_status(struct usb_serial_port *port, unsigned char *data, size_t actual_length) { … } static void f81232_read_int_callback(struct urb *urb) { … } static char f81232_handle_lsr(struct usb_serial_port *port, u8 lsr) { … } static void f81232_process_read_urb(struct urb *urb) { … } static void f81534a_process_read_urb(struct urb *urb) { … } static int f81232_break_ctl(struct tty_struct *tty, int break_state) { … } static int f81232_find_clk(speed_t baudrate) { … } static void f81232_set_baudrate(struct tty_struct *tty, struct usb_serial_port *port, speed_t baudrate, speed_t old_baudrate) { … } static int f81232_port_enable(struct usb_serial_port *port) { … } static int f81232_port_disable(struct usb_serial_port *port) { … } static void f81232_set_termios(struct tty_struct *tty, struct usb_serial_port *port, const struct ktermios *old_termios) { … } static int f81232_tiocmget(struct tty_struct *tty) { … } static int f81232_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { … } static int f81232_open(struct tty_struct *tty, struct usb_serial_port *port) { … } static int f81534a_open(struct tty_struct *tty, struct usb_serial_port *port) { … } static void f81232_close(struct usb_serial_port *port) { … } static void f81232_dtr_rts(struct usb_serial_port *port, int on) { … } static bool f81232_tx_empty(struct usb_serial_port *port) { … } static int f81232_carrier_raised(struct usb_serial_port *port) { … } static void f81232_get_serial(struct tty_struct *tty, struct serial_struct *ss) { … } static void f81232_interrupt_work(struct work_struct *work) { … } static void f81232_lsr_worker(struct work_struct *work) { … } static int f81534a_ctrl_set_register(struct usb_interface *intf, u16 reg, u16 size, void *val) { … } static int f81534a_ctrl_enable_all_ports(struct usb_interface *intf, bool en) { … } static int f81534a_ctrl_probe(struct usb_interface *intf, const struct usb_device_id *id) { … } static void f81534a_ctrl_disconnect(struct usb_interface *intf) { … } static int f81534a_ctrl_resume(struct usb_interface *intf) { … } static int f81232_port_probe(struct usb_serial_port *port) { … } static int f81534a_port_probe(struct usb_serial_port *port) { … } static int f81232_suspend(struct usb_serial *serial, pm_message_t message) { … } static int f81232_resume(struct usb_serial *serial) { … } static struct usb_serial_driver f81232_device = …; static struct usb_serial_driver f81534a_device = …; static struct usb_serial_driver * const serial_drivers[] = …; static struct usb_driver f81534a_ctrl_driver = …; static int __init f81232_init(void) { … } static void __exit f81232_exit(void) { … } module_init(…) …; module_exit(f81232_exit); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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