^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Navman Serial USB driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2006 Greg Kroah-Hartman <gregkh@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * TODO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Add termios method that uses copy_hw but also kills all echo
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * flags as the navman is rx only so cannot echo.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/gfp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/tty.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/tty_flip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/usb/serial.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static const struct usb_device_id id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) { USB_DEVICE(0x0a99, 0x0001) }, /* Talon Technology device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) { USB_DEVICE(0x0df7, 0x0900) }, /* Mobile Action i-gotU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) MODULE_DEVICE_TABLE(usb, id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static void navman_read_int_callback(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct usb_serial_port *port = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) unsigned char *data = urb->transfer_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int status = urb->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) switch (status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) case -ECONNRESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* this urb is terminated, clean up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) __func__, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) __func__, status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) if (urb->actual_length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) tty_insert_flip_string(&port->port, data, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) tty_flip_buffer_push(&port->port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) result = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) dev_err(&urb->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) "%s - Error %d submitting interrupt urb\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) __func__, result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static int navman_open(struct tty_struct *tty, struct usb_serial_port *port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (port->interrupt_in_urb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) dev_dbg(&port->dev, "%s - adding interrupt input for treo\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (result)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) dev_err(&port->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) "%s - failed submitting interrupt urb, error %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) __func__, result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static void navman_close(struct usb_serial_port *port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) usb_kill_urb(port->interrupt_in_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static int navman_write(struct tty_struct *tty, struct usb_serial_port *port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) const unsigned char *buf, int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * This device can't write any data, only read from the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static struct usb_serial_driver navman_device = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .name = "navman",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .id_table = id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .num_ports = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .open = navman_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .close = navman_close,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .write = navman_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) .read_int_callback = navman_read_int_callback,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static struct usb_serial_driver * const serial_drivers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) &navman_device, NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) module_usb_serial_driver(serial_drivers, id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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