^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) * Driver for Phoenix RC Flight Controller Adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2018 Marcus Folkesson <marcus.folkesson@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/usb/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define PXRC_VENDOR_ID 0x1781
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define PXRC_PRODUCT_ID 0x0898
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct pxrc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct usb_interface *intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct mutex pm_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) bool is_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) char phys[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static void pxrc_usb_irq(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct pxrc *pxrc = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u8 *data = urb->transfer_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) switch (urb->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* success */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) case -ETIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* this urb is timing out */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) dev_dbg(&pxrc->intf->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) "%s - urb timed out - was the device unplugged?\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case -ECONNRESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) case -EPIPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* this urb is terminated, clean up */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) dev_dbg(&pxrc->intf->dev, "%s - urb shutting down with status: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __func__, urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) dev_dbg(&pxrc->intf->dev, "%s - nonzero urb status received: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) __func__, urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) goto exit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (urb->actual_length == 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) input_report_abs(pxrc->input, ABS_X, data[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) input_report_abs(pxrc->input, ABS_Y, data[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) input_report_abs(pxrc->input, ABS_RX, data[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) input_report_abs(pxrc->input, ABS_RY, data[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) input_report_abs(pxrc->input, ABS_RUDDER, data[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) input_report_abs(pxrc->input, ABS_THROTTLE, data[6]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) input_report_abs(pxrc->input, ABS_MISC, data[7]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) input_report_key(pxrc->input, BTN_A, data[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) exit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /* Resubmit to fetch new fresh URBs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) error = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (error && error != -EPERM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) dev_err(&pxrc->intf->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) "%s - usb_submit_urb failed with result: %d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) __func__, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static int pxrc_open(struct input_dev *input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct pxrc *pxrc = input_get_drvdata(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) mutex_lock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) retval = usb_submit_urb(pxrc->urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) dev_err(&pxrc->intf->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) "%s - usb_submit_urb failed, error: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) __func__, retval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) retval = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) goto out;
^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) pxrc->is_open = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) mutex_unlock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static void pxrc_close(struct input_dev *input)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct pxrc *pxrc = input_get_drvdata(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) mutex_lock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) usb_kill_urb(pxrc->urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) pxrc->is_open = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) mutex_unlock(&pxrc->pm_mutex);
^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) static void pxrc_free_urb(void *_pxrc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct pxrc *pxrc = _pxrc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) usb_free_urb(pxrc->urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static int pxrc_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct usb_device *udev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct pxrc *pxrc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct usb_endpoint_descriptor *epirq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) size_t xfer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) void *xfer_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) * Locate the endpoint information. This device only has an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * interrupt endpoint.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) error = usb_find_common_endpoints(intf->cur_altsetting,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) NULL, NULL, &epirq, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) dev_err(&intf->dev, "Could not find endpoint\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) pxrc = devm_kzalloc(&intf->dev, sizeof(*pxrc), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (!pxrc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) mutex_init(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) pxrc->intf = intf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) usb_set_intfdata(pxrc->intf, pxrc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) xfer_size = usb_endpoint_maxp(epirq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) xfer_buf = devm_kmalloc(&intf->dev, xfer_size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (!xfer_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) pxrc->urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) if (!pxrc->urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) error = devm_add_action_or_reset(&intf->dev, pxrc_free_urb, pxrc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) usb_fill_int_urb(pxrc->urb, udev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) usb_rcvintpipe(udev, epirq->bEndpointAddress),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) xfer_buf, xfer_size, pxrc_usb_irq, pxrc, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) pxrc->input = devm_input_allocate_device(&intf->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (!pxrc->input) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) dev_err(&intf->dev, "couldn't allocate input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) pxrc->input->name = "PXRC Flight Controller Adapter";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) usb_make_path(udev, pxrc->phys, sizeof(pxrc->phys));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) strlcat(pxrc->phys, "/input0", sizeof(pxrc->phys));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) pxrc->input->phys = pxrc->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) usb_to_input_id(udev, &pxrc->input->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) pxrc->input->open = pxrc_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) pxrc->input->close = pxrc_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) input_set_capability(pxrc->input, EV_KEY, BTN_A);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) input_set_abs_params(pxrc->input, ABS_X, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) input_set_abs_params(pxrc->input, ABS_Y, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) input_set_abs_params(pxrc->input, ABS_RX, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) input_set_abs_params(pxrc->input, ABS_RY, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) input_set_abs_params(pxrc->input, ABS_RUDDER, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) input_set_abs_params(pxrc->input, ABS_THROTTLE, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) input_set_abs_params(pxrc->input, ABS_MISC, 0, 255, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) input_set_drvdata(pxrc->input, pxrc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) error = input_register_device(pxrc->input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static void pxrc_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) /* All driver resources are devm-managed. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) static int pxrc_suspend(struct usb_interface *intf, pm_message_t message)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct pxrc *pxrc = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) mutex_lock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (pxrc->is_open)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) usb_kill_urb(pxrc->urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) mutex_unlock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) static int pxrc_resume(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct pxrc *pxrc = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) int retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) mutex_lock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (pxrc->is_open && usb_submit_urb(pxrc->urb, GFP_KERNEL) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) retval = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) mutex_unlock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static int pxrc_pre_reset(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct pxrc *pxrc = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) mutex_lock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) usb_kill_urb(pxrc->urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static int pxrc_post_reset(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) struct pxrc *pxrc = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) int retval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (pxrc->is_open && usb_submit_urb(pxrc->urb, GFP_KERNEL) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) retval = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) mutex_unlock(&pxrc->pm_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) static int pxrc_reset_resume(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) return pxrc_resume(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) static const struct usb_device_id pxrc_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) { USB_DEVICE(PXRC_VENDOR_ID, PXRC_PRODUCT_ID) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) MODULE_DEVICE_TABLE(usb, pxrc_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static struct usb_driver pxrc_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) .name = "pxrc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) .probe = pxrc_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) .disconnect = pxrc_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) .id_table = pxrc_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) .suspend = pxrc_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) .resume = pxrc_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) .pre_reset = pxrc_pre_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) .post_reset = pxrc_post_reset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) .reset_resume = pxrc_reset_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) module_usb_driver(pxrc_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) MODULE_AUTHOR("Marcus Folkesson <marcus.folkesson@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) MODULE_DESCRIPTION("PhoenixRC Flight Controller Adapter");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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