// SPDX-License-Identifier: GPL-2.0-or-later #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/console.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/serial_core.h> #include <linux/slab.h> #include <linux/tty_flip.h> #include <asm/serial.h> #define DRIVER_NAME … #define DEV_NAME … #define UART_NR … #define ESP32S3_ACM_TX_FIFO_SIZE … #define USB_SERIAL_JTAG_EP1_REG … #define USB_SERIAL_JTAG_EP1_CONF_REG … #define USB_SERIAL_JTAG_WR_DONE … #define USB_SERIAL_JTAG_SERIAL_IN_EP_DATA_FREE … #define USB_SERIAL_JTAG_INT_ST_REG … #define USB_SERIAL_JTAG_SERIAL_OUT_RECV_PKT_INT_ST … #define USB_SERIAL_JTAG_SERIAL_IN_EMPTY_INT_ST … #define USB_SERIAL_JTAG_INT_ENA_REG … #define USB_SERIAL_JTAG_SERIAL_OUT_RECV_PKT_INT_ENA … #define USB_SERIAL_JTAG_SERIAL_IN_EMPTY_INT_ENA … #define USB_SERIAL_JTAG_INT_CLR_REG … #define USB_SERIAL_JTAG_IN_EP1_ST_REG … #define USB_SERIAL_JTAG_IN_EP1_WR_ADDR … #define USB_SERIAL_JTAG_OUT_EP1_ST_REG … #define USB_SERIAL_JTAG_OUT_EP1_REC_DATA_CNT … static const struct of_device_id esp32s3_acm_dt_ids[] = …; MODULE_DEVICE_TABLE(of, esp32s3_acm_dt_ids); static struct uart_port *esp32s3_acm_ports[UART_NR]; static void esp32s3_acm_write(struct uart_port *port, unsigned long reg, u32 v) { … } static u32 esp32s3_acm_read(struct uart_port *port, unsigned long reg) { … } static u32 esp32s3_acm_tx_fifo_free(struct uart_port *port) { … } static u32 esp32s3_acm_tx_fifo_cnt(struct uart_port *port) { … } static u32 esp32s3_acm_rx_fifo_cnt(struct uart_port *port) { … } /* return TIOCSER_TEMT when transmitter is not busy */ static unsigned int esp32s3_acm_tx_empty(struct uart_port *port) { … } static void esp32s3_acm_set_mctrl(struct uart_port *port, unsigned int mctrl) { … } static unsigned int esp32s3_acm_get_mctrl(struct uart_port *port) { … } static void esp32s3_acm_stop_tx(struct uart_port *port) { … } static void esp32s3_acm_rxint(struct uart_port *port) { … } static void esp32s3_acm_push(struct uart_port *port) { … } static void esp32s3_acm_put_char(struct uart_port *port, u8 c) { … } static void esp32s3_acm_put_char_sync(struct uart_port *port, u8 c) { … } static void esp32s3_acm_transmit_buffer(struct uart_port *port) { … } static void esp32s3_acm_txint(struct uart_port *port) { … } static irqreturn_t esp32s3_acm_int(int irq, void *dev_id) { … } static void esp32s3_acm_start_tx(struct uart_port *port) { … } static void esp32s3_acm_stop_rx(struct uart_port *port) { … } static int esp32s3_acm_startup(struct uart_port *port) { … } static void esp32s3_acm_shutdown(struct uart_port *port) { … } static void esp32s3_acm_set_termios(struct uart_port *port, struct ktermios *termios, const struct ktermios *old) { … } static const char *esp32s3_acm_type(struct uart_port *port) { … } /* configure/auto-configure the port */ static void esp32s3_acm_config_port(struct uart_port *port, int flags) { … } #ifdef CONFIG_CONSOLE_POLL static void esp32s3_acm_poll_put_char(struct uart_port *port, unsigned char c) { … } static int esp32s3_acm_poll_get_char(struct uart_port *port) { … } #endif static const struct uart_ops esp32s3_acm_pops = …; static void esp32s3_acm_string_write(struct uart_port *port, const char *s, unsigned int count) { … } static void esp32s3_acm_console_write(struct console *co, const char *s, unsigned int count) { … } static struct uart_driver esp32s3_acm_reg; static struct console esp32s3_acm_console = …; static void esp32s3_acm_earlycon_write(struct console *con, const char *s, unsigned int n) { … } #ifdef CONFIG_CONSOLE_POLL static int esp32s3_acm_earlycon_read(struct console *con, char *s, unsigned int n) { … } #endif static int __init esp32s3_acm_early_console_setup(struct earlycon_device *device, const char *options) { … } OF_EARLYCON_DECLARE(…); static struct uart_driver esp32s3_acm_reg = …; static int esp32s3_acm_probe(struct platform_device *pdev) { … } static void esp32s3_acm_remove(struct platform_device *pdev) { … } static struct platform_driver esp32s3_acm_driver = …; static int __init esp32s3_acm_init(void) { … } static void __exit esp32s3_acm_exit(void) { … } module_init(…) …; module_exit(esp32s3_acm_exit); MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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