^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * HID driver for CMedia CM6533 audio jack controls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2015 Ben Chen <ben_chen@bizlinktech.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/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) MODULE_AUTHOR("Ben Chen");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) MODULE_DESCRIPTION("CM6533 HID jack controls");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define CM6533_JD_TYPE_COUNT 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define CM6533_JD_RAWEV_LEN 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define CM6533_JD_SFX_OFFSET 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) *CM6533 audio jack HID raw events:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *Plug in:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) *01000600 002083xx 080008c0 10000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *about 3 seconds later...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) *01000a00 002083xx 08000380 10000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) *01000600 002083xx 08000380 10000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) *Plug out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) *01000400 002083xx 080008c0 x0000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static const u8 ji_sfx[] = { 0x08, 0x00, 0x08, 0xc0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static const u8 ji_in[] = { 0x01, 0x00, 0x06, 0x00 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static const u8 ji_out[] = { 0x01, 0x00, 0x04, 0x00 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static int jack_switch_types[CM6533_JD_TYPE_COUNT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) SW_HEADPHONE_INSERT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct cmhid {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct hid_device *hid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) unsigned short switch_map[CM6533_JD_TYPE_COUNT];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static void hp_ev(struct hid_device *hid, struct cmhid *cm, int value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) input_report_switch(cm->input_dev, SW_HEADPHONE_INSERT, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) input_sync(cm->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int cmhid_raw_event(struct hid_device *hid, struct hid_report *report,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) u8 *data, int len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct cmhid *cm = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (len != CM6533_JD_RAWEV_LEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (memcmp(data+CM6533_JD_SFX_OFFSET, ji_sfx, sizeof(ji_sfx)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (!memcmp(data, ji_out, sizeof(ji_out))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) hp_ev(hid, cm, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (!memcmp(data, ji_in, sizeof(ji_in))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) hp_ev(hid, cm, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) static int cmhid_input_configured(struct hid_device *hid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct hid_input *hidinput)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct input_dev *input_dev = hidinput->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) struct cmhid *cm = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) cm->input_dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) memcpy(cm->switch_map, jack_switch_types, sizeof(cm->switch_map));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) input_dev->evbit[0] = BIT(EV_SW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) for (i = 0; i < CM6533_JD_TYPE_COUNT; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) input_set_capability(cm->input_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) EV_SW, jack_switch_types[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static int cmhid_input_mapping(struct hid_device *hid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct hid_input *hi, struct hid_field *field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct hid_usage *usage, unsigned long **bit, int *max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static int cmhid_probe(struct hid_device *hid, const struct hid_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct cmhid *cm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) cm = kzalloc(sizeof(struct cmhid), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (!cm) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) goto allocfail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) cm->hid = hid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) hid_set_drvdata(hid, cm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) ret = hid_parse(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) hid_err(hid, "parse failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) ret = hid_hw_start(hid, HID_CONNECT_DEFAULT | HID_CONNECT_HIDDEV_FORCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) hid_err(hid, "hw start failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) kfree(cm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) allocfail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static void cmhid_remove(struct hid_device *hid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) struct cmhid *cm = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) hid_hw_stop(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) kfree(cm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) static const struct hid_device_id cmhid_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) MODULE_DEVICE_TABLE(hid, cmhid_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static struct hid_driver cmhid_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .name = "cm6533_jd",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) .id_table = cmhid_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) .raw_event = cmhid_raw_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .input_configured = cmhid_input_configured,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .probe = cmhid_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .remove = cmhid_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .input_mapping = cmhid_input_mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) module_hid_driver(cmhid_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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