^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Infrared Toy and IR Droid RC core driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2020 Sean Young <sean@mess.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This driver is based on the lirc driver which can be found here:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * https://sourceforge.net/p/lirc/git/ci/master/tree/plugins/irtoy.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Copyright (C) 2011 Peter Kooiman <pkooiman@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/kernel.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/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/usb/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <media/rc-core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static const u8 COMMAND_VERSION[] = { 'v' };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) // End transmit and repeat reset command so we exit sump mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static const u8 COMMAND_RESET[] = { 0xff, 0xff, 0, 0, 0, 0, 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static const u8 COMMAND_SMODE_ENTER[] = { 's' };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static const u8 COMMAND_SMODE_EXIT[] = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static const u8 COMMAND_TXSTART[] = { 0x26, 0x24, 0x25, 0x03 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define REPLY_XMITCOUNT 't'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define REPLY_XMITSUCCESS 'C'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define REPLY_VERSION 'V'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define REPLY_SAMPLEMODEPROTO 'S'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define TIMEOUT 500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define LEN_XMITRES 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define LEN_VERSION 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define LEN_SAMPLEMODEPROTO 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define MIN_FW_VERSION 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define UNIT_US 21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define MAX_TIMEOUT_US (UNIT_US * U16_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define MAX_PACKET 64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) enum state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) STATE_IRDATA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) STATE_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) STATE_COMMAND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) STATE_TX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct irtoy {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct usb_device *usbdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct rc_dev *rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct urb *urb_in, *urb_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) u8 *in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) u8 *out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct completion command_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) bool pulse;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) enum state state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) void *tx_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) uint tx_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) uint emitted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) uint hw_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) uint sw_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) uint proto_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) char phys[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static void irtoy_response(struct irtoy *irtoy, u32 len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) switch (irtoy->state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) case STATE_COMMAND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (len == LEN_VERSION && irtoy->in[0] == REPLY_VERSION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) uint version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) irtoy->in[LEN_VERSION] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if (kstrtouint(irtoy->in + 1, 10, &version)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) dev_err(irtoy->dev, "invalid version %*phN. Please make sure you are using firmware v20 or higher",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) LEN_VERSION, irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) break;
^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) dev_dbg(irtoy->dev, "version %s\n", irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) irtoy->hw_version = version / 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) irtoy->sw_version = version % 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) irtoy->state = STATE_IRDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) complete(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) } else if (len == LEN_SAMPLEMODEPROTO &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) irtoy->in[0] == REPLY_SAMPLEMODEPROTO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) uint version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) irtoy->in[LEN_SAMPLEMODEPROTO] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (kstrtouint(irtoy->in + 1, 10, &version)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) dev_err(irtoy->dev, "invalid sample mode response %*phN",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) LEN_SAMPLEMODEPROTO, irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return;
^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) dev_dbg(irtoy->dev, "protocol %s\n", irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) irtoy->proto_version = version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) irtoy->state = STATE_IRDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) complete(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dev_err(irtoy->dev, "unexpected response to command: %*phN\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) len, irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) case STATE_IRDATA: {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct ir_raw_event rawir = { .pulse = irtoy->pulse };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) __be16 *in = (__be16 *)irtoy->in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) for (i = 0; i < len / sizeof(__be16); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u16 v = be16_to_cpu(in[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (v == 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) rawir.pulse = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) rawir.duration = v * UNIT_US;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) ir_raw_event_store_with_timeout(irtoy->rc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) &rawir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) rawir.pulse = !rawir.pulse;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) irtoy->pulse = rawir.pulse;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) ir_raw_event_handle(irtoy->rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) case STATE_TX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (irtoy->tx_len == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (len == LEN_XMITRES &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) irtoy->in[0] == REPLY_XMITCOUNT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) u16 emitted = get_unaligned_be16(irtoy->in + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) dev_dbg(irtoy->dev, "emitted:%u\n", emitted);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) irtoy->emitted = emitted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) } else if (len == 1 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) irtoy->in[0] == REPLY_XMITSUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) irtoy->state = STATE_IRDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) complete(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) // send next part of tx buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) uint space = irtoy->in[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) uint buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (len != 1 || space > MAX_PACKET || space == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) dev_err(irtoy->dev, "packet length expected: %*phN\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) len, irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) irtoy->state = STATE_IRDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) complete(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) buf_len = min(space, irtoy->tx_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) dev_dbg(irtoy->dev, "remaining:%u sending:%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) irtoy->tx_len, buf_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) memcpy(irtoy->out, irtoy->tx_buf, buf_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) irtoy->urb_out->transfer_buffer_length = buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) err = usb_submit_urb(irtoy->urb_out, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (err != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) dev_err(irtoy->dev, "fail to submit tx buf urb: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) irtoy->state = STATE_IRDATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) complete(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) irtoy->tx_buf += buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) irtoy->tx_len -= buf_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) case STATE_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) dev_err(irtoy->dev, "unexpected response to reset: %*phN\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) len, irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^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 irtoy_out_callback(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct irtoy *irtoy = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (urb->status == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (irtoy->state == STATE_RESET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) complete(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) dev_warn(irtoy->dev, "out urb status: %d\n", urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static void irtoy_in_callback(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct irtoy *irtoy = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) if (urb->status == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) irtoy_response(irtoy, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) dev_dbg(irtoy->dev, "in urb status: %d\n", urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) ret = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (ret && ret != -ENODEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) dev_warn(irtoy->dev, "failed to resubmit urb: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int irtoy_command(struct irtoy *irtoy, const u8 *cmd, int cmd_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) enum state state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) init_completion(&irtoy->command_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) irtoy->state = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) memcpy(irtoy->out, cmd, cmd_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) irtoy->urb_out->transfer_buffer_length = cmd_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) err = usb_submit_urb(irtoy->urb_out, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (err != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (!wait_for_completion_timeout(&irtoy->command_done,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) msecs_to_jiffies(TIMEOUT))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) usb_kill_urb(irtoy->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return -ETIMEDOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return 0;
^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 irtoy_setup(struct irtoy *irtoy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) err = irtoy_command(irtoy, COMMAND_RESET, sizeof(COMMAND_RESET),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) STATE_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (err != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) dev_err(irtoy->dev, "could not write reset command: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) usleep_range(50, 50);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) // get version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) err = irtoy_command(irtoy, COMMAND_VERSION, sizeof(COMMAND_VERSION),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) STATE_COMMAND);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) dev_err(irtoy->dev, "could not write version command: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) return err;
^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) // enter sample mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) err = irtoy_command(irtoy, COMMAND_SMODE_ENTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) sizeof(COMMAND_SMODE_ENTER), STATE_COMMAND);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) dev_err(irtoy->dev, "could not write sample command: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) * When sending IR, it is imperative that we send the IR data as quickly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) * as possible to the device, so it does not run out of IR data and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) * introduce gaps. Allocate the buffer here, and then feed the data from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) * the urb callback handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) static int irtoy_tx(struct rc_dev *rc, uint *txbuf, uint count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) struct irtoy *irtoy = rc->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) unsigned int i, size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) __be16 *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) size = sizeof(u16) * (count + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) buf = kmalloc(size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) for (i = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) u16 v = DIV_ROUND_CLOSEST(txbuf[i], UNIT_US);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) if (!v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) v = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) buf[i] = cpu_to_be16(v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) buf[count] = cpu_to_be16(0xffff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) irtoy->tx_buf = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) irtoy->tx_len = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) irtoy->emitted = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) // There is an issue where if the unit is receiving IR while the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) // first TXSTART command is sent, the device might end up hanging
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) // with its led on. It does not respond to any command when this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) // happens. To work around this, re-enter sample mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) err = irtoy_command(irtoy, COMMAND_SMODE_EXIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) sizeof(COMMAND_SMODE_EXIT), STATE_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) dev_err(irtoy->dev, "exit sample mode: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) err = irtoy_command(irtoy, COMMAND_SMODE_ENTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) sizeof(COMMAND_SMODE_ENTER), STATE_COMMAND);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) dev_err(irtoy->dev, "enter sample mode: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) err = irtoy_command(irtoy, COMMAND_TXSTART, sizeof(COMMAND_TXSTART),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) STATE_TX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) dev_err(irtoy->dev, "failed to send tx start command: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) // not sure what state the device is in, reset it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) irtoy_setup(irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (size != irtoy->emitted) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) dev_err(irtoy->dev, "expected %u emitted, got %u\n", size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) irtoy->emitted);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) // not sure what state the device is in, reset it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) irtoy_setup(irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static int irtoy_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) struct usb_host_interface *idesc = intf->cur_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct usb_device *usbdev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct usb_endpoint_descriptor *ep_in = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) struct usb_endpoint_descriptor *ep_out = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct usb_endpoint_descriptor *ep = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) struct irtoy *irtoy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct rc_dev *rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) int i, pipe, err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) for (i = 0; i < idesc->desc.bNumEndpoints; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) ep = &idesc->endpoint[i].desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (!ep_in && usb_endpoint_is_bulk_in(ep) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) usb_endpoint_maxp(ep) == MAX_PACKET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) ep_in = ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (!ep_out && usb_endpoint_is_bulk_out(ep) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) usb_endpoint_maxp(ep) == MAX_PACKET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) ep_out = ep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) if (!ep_in || !ep_out) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) dev_err(&intf->dev, "required endpoints not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) irtoy = kzalloc(sizeof(*irtoy), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) if (!irtoy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) irtoy->in = kmalloc(MAX_PACKET, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (!irtoy->in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) goto free_irtoy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) irtoy->out = kmalloc(MAX_PACKET, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) if (!irtoy->out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) goto free_irtoy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) rc = rc_allocate_device(RC_DRIVER_IR_RAW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (!rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) goto free_irtoy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) goto free_rcdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) pipe = usb_rcvbulkpipe(usbdev, ep_in->bEndpointAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) usb_fill_bulk_urb(urb, usbdev, pipe, irtoy->in, MAX_PACKET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) irtoy_in_callback, irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) irtoy->urb_in = urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) goto free_rcdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) pipe = usb_sndbulkpipe(usbdev, ep_out->bEndpointAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) usb_fill_bulk_urb(urb, usbdev, pipe, irtoy->out, MAX_PACKET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) irtoy_out_callback, irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) irtoy->dev = &intf->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) irtoy->usbdev = usbdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) irtoy->rc = rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) irtoy->urb_out = urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) irtoy->pulse = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) err = usb_submit_urb(irtoy->urb_in, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) if (err != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) dev_err(irtoy->dev, "fail to submit in urb: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) goto free_rcdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) err = irtoy_setup(irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) goto free_rcdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) dev_info(irtoy->dev, "version: hardware %u, firmware %u, protocol %u",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) irtoy->hw_version, irtoy->sw_version, irtoy->proto_version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (irtoy->sw_version < MIN_FW_VERSION) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) dev_err(irtoy->dev, "need firmware V%02u or higher",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) MIN_FW_VERSION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) goto free_rcdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) usb_make_path(usbdev, irtoy->phys, sizeof(irtoy->phys));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) rc->device_name = "Infrared Toy";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) rc->driver_name = KBUILD_MODNAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) rc->input_phys = irtoy->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) usb_to_input_id(usbdev, &rc->input_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) rc->dev.parent = &intf->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) rc->priv = irtoy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) rc->tx_ir = irtoy_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) rc->map_name = RC_MAP_RC6_MCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) rc->rx_resolution = UNIT_US;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) rc->timeout = IR_DEFAULT_TIMEOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * end of transmission is detected by absence of a usb packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) * with more pulse/spaces. However, each usb packet sent can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) * contain 32 pulse/spaces, which can be quite lengthy, so there
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) * can be a delay between usb packets. For example with nec there is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) * 17ms gap between packets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) * So, make timeout a largish minimum which works with most protocols.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) rc->min_timeout = MS_TO_US(40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) rc->max_timeout = MAX_TIMEOUT_US;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) err = rc_register_device(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) goto free_rcdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) usb_set_intfdata(intf, irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) free_rcdev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) usb_kill_urb(irtoy->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) usb_free_urb(irtoy->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) usb_kill_urb(irtoy->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) usb_free_urb(irtoy->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) rc_free_device(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) free_irtoy:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) kfree(irtoy->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) kfree(irtoy->out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) kfree(irtoy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) static void irtoy_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) struct irtoy *ir = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) rc_unregister_device(ir->rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) usb_kill_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) usb_free_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) usb_kill_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) usb_free_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) kfree(ir->in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) kfree(ir->out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) kfree(ir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) static const struct usb_device_id irtoy_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) { USB_DEVICE_INTERFACE_CLASS(0x04d8, 0xfd08, USB_CLASS_CDC_DATA) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) { USB_DEVICE_INTERFACE_CLASS(0x04d8, 0xf58b, USB_CLASS_CDC_DATA) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) static struct usb_driver irtoy_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) .name = KBUILD_MODNAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) .probe = irtoy_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) .disconnect = irtoy_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) .id_table = irtoy_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) module_usb_driver(irtoy_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) MODULE_AUTHOR("Sean Young <sean@mess.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) MODULE_DESCRIPTION("Infrared Toy and IR Droid driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) MODULE_DEVICE_TABLE(usb, irtoy_table);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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