^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) * IguanaWorks USB IR Transceiver support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2012 Sean Young <sean@mess.org>
^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/kernel.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 <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/usb/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.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 <media/rc-core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define BUF_SIZE 152
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct iguanair {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct rc_dev *rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct usb_device *udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) uint16_t version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) uint8_t bufsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) uint8_t cycle_overhead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /* receiver support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) bool receiver_on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) dma_addr_t dma_in, dma_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) uint8_t *buf_in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct urb *urb_in, *urb_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct completion completion;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* transmit support */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) bool tx_overflow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) uint32_t carrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct send_packet *packet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) char name[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) char phys[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define CMD_NOP 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define CMD_GET_VERSION 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define CMD_GET_BUFSIZE 0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define CMD_GET_FEATURES 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define CMD_SEND 0x15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define CMD_EXECUTE 0x1f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define CMD_RX_OVERFLOW 0x31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define CMD_TX_OVERFLOW 0x32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define CMD_RECEIVER_ON 0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define CMD_RECEIVER_OFF 0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define DIR_IN 0xdc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define DIR_OUT 0xcd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define MAX_IN_PACKET 8u
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define MAX_OUT_PACKET (sizeof(struct send_packet) + BUF_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define TIMEOUT 1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define RX_RESOLUTION 21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct packet {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) uint16_t start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) uint8_t direction;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) uint8_t cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct send_packet {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) struct packet header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) uint8_t length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) uint8_t channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) uint8_t busy7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) uint8_t busy4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) uint8_t payload[];
^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 process_ir_data(struct iguanair *ir, unsigned len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) if (len >= 4 && ir->buf_in[0] == 0 && ir->buf_in[1] == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) switch (ir->buf_in[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) case CMD_GET_VERSION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) if (len == 6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) ir->version = (ir->buf_in[5] << 8) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) ir->buf_in[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) complete(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) case CMD_GET_BUFSIZE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (len >= 5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) ir->bufsize = ir->buf_in[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) complete(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) case CMD_GET_FEATURES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (len > 5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) ir->cycle_overhead = ir->buf_in[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) complete(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) case CMD_TX_OVERFLOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) ir->tx_overflow = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) case CMD_RECEIVER_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) case CMD_RECEIVER_ON:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) case CMD_SEND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) complete(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) case CMD_RX_OVERFLOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) dev_warn(ir->dev, "receive overflow\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) ir_raw_event_reset(ir->rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) dev_warn(ir->dev, "control code %02x received\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ir->buf_in[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) } else if (len >= 7) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct ir_raw_event rawir = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) unsigned i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) bool event = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) for (i = 0; i < 7; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) if (ir->buf_in[i] == 0x80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) rawir.pulse = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) rawir.duration = 21845;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) rawir.pulse = (ir->buf_in[i] & 0x80) == 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) rawir.duration = ((ir->buf_in[i] & 0x7f) + 1) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) RX_RESOLUTION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (ir_raw_event_store_with_filter(ir->rc, &rawir))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) event = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ir_raw_event_handle(ir->rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^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) static void iguanair_rx(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct iguanair *ir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ir = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (!ir) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) usb_unlink_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) switch (urb->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) process_ir_data(ir, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) case -ECONNRESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) case -ENOENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) case -ESHUTDOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) usb_unlink_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) case -EPIPE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) dev_dbg(ir->dev, "Error: urb status = %d\n", urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) rc = usb_submit_urb(urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (rc && rc != -ENODEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) dev_warn(ir->dev, "failed to resubmit urb: %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) static void iguanair_irq_out(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct iguanair *ir = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) if (urb->status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) dev_dbg(ir->dev, "Error: out urb status = %d\n", urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /* if we sent an nop packet, do not expect a response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) if (urb->status == 0 && ir->packet->header.cmd == CMD_NOP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) complete(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static int iguanair_send(struct iguanair *ir, unsigned size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) reinit_completion(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) ir->urb_out->transfer_buffer_length = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) rc = usb_submit_urb(ir->urb_out, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (wait_for_completion_timeout(&ir->completion, TIMEOUT) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return -ETIMEDOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static int iguanair_get_features(struct iguanair *ir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * On cold boot, the iguanair initializes on the first packet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) * received but does not process that packet. Send an empty
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * packet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) ir->packet->header.start = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) ir->packet->header.direction = DIR_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) ir->packet->header.cmd = CMD_NOP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) iguanair_send(ir, sizeof(ir->packet->header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) ir->packet->header.cmd = CMD_GET_VERSION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) rc = iguanair_send(ir, sizeof(ir->packet->header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) dev_info(ir->dev, "failed to get version\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (ir->version < 0x205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) dev_err(ir->dev, "firmware 0x%04x is too old\n", ir->version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) rc = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) ir->bufsize = 150;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) ir->cycle_overhead = 65;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) ir->packet->header.cmd = CMD_GET_BUFSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) rc = iguanair_send(ir, sizeof(ir->packet->header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) if (rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) dev_info(ir->dev, "failed to get buffer size\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) if (ir->bufsize > BUF_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) dev_info(ir->dev, "buffer size %u larger than expected\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) ir->bufsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) ir->bufsize = BUF_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) ir->packet->header.cmd = CMD_GET_FEATURES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) rc = iguanair_send(ir, sizeof(ir->packet->header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) dev_info(ir->dev, "failed to get features\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) return rc;
^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 int iguanair_receiver(struct iguanair *ir, bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) ir->packet->header.start = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) ir->packet->header.direction = DIR_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ir->packet->header.cmd = enable ? CMD_RECEIVER_ON : CMD_RECEIVER_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) if (enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) ir_raw_event_reset(ir->rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) return iguanair_send(ir, sizeof(ir->packet->header));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * The iguanair creates the carrier by busy spinning after each half period.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * This is counted in CPU cycles, with the CPU running at 24MHz. It is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * broken down into 7-cycles and 4-cyles delays, with a preference for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * 4-cycle delays, minus the overhead of the loop itself (cycle_overhead).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) static int iguanair_set_tx_carrier(struct rc_dev *dev, uint32_t carrier)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) struct iguanair *ir = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (carrier < 25000 || carrier > 150000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) if (carrier != ir->carrier) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) uint32_t cycles, fours, sevens;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) ir->carrier = carrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) cycles = DIV_ROUND_CLOSEST(24000000, carrier * 2) -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) ir->cycle_overhead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * Calculate minimum number of 7 cycles needed so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) * we are left with a multiple of 4; so we want to have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * (sevens * 7) & 3 == cycles & 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) sevens = (4 - cycles) & 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) fours = (cycles - sevens * 7) / 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * The firmware interprets these values as a relative offset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * for a branch. Immediately following the branches, there
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * 4 instructions of 7 cycles (2 bytes each) and 110
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * instructions of 4 cycles (1 byte each). A relative branch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * of 0 will execute all of them, branch further for less
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * cycle burning.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) ir->packet->busy7 = (4 - sevens) * 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) ir->packet->busy4 = 110 - fours;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) static int iguanair_set_tx_mask(struct rc_dev *dev, uint32_t mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) struct iguanair *ir = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (mask > 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) ir->packet->channels = mask << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) struct iguanair *ir = dev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) unsigned int i, size, p, periods;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* convert from us to carrier periods */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) for (i = size = 0; i < count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) periods = DIV_ROUND_CLOSEST(txbuf[i] * ir->carrier, 1000000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) while (periods) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) p = min(periods, 127u);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) if (size >= ir->bufsize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) ir->packet->payload[size++] = p | ((i & 1) ? 0x80 : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) periods -= p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ir->packet->header.start = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) ir->packet->header.direction = DIR_OUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) ir->packet->header.cmd = CMD_SEND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) ir->packet->length = size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) ir->tx_overflow = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) rc = iguanair_send(ir, sizeof(*ir->packet) + size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (rc == 0 && ir->tx_overflow)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) rc = -EOVERFLOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return rc ? rc : count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static int iguanair_open(struct rc_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct iguanair *ir = rdev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) rc = iguanair_receiver(ir, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) if (rc == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) ir->receiver_on = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) static void iguanair_close(struct rc_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) struct iguanair *ir = rdev->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) rc = iguanair_receiver(ir, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) ir->receiver_on = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) if (rc && rc != -ENODEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) dev_warn(ir->dev, "failed to disable receiver: %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) static int iguanair_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct usb_device *udev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) struct iguanair *ir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) struct rc_dev *rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) int ret, pipein, pipeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct usb_host_interface *idesc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) idesc = intf->cur_altsetting;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) if (idesc->desc.bNumEndpoints < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) ir = kzalloc(sizeof(*ir), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) rc = rc_allocate_device(RC_DRIVER_IR_RAW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (!ir || !rc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) ir->buf_in = usb_alloc_coherent(udev, MAX_IN_PACKET, GFP_KERNEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) &ir->dma_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) ir->packet = usb_alloc_coherent(udev, MAX_OUT_PACKET, GFP_KERNEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) &ir->dma_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) ir->urb_in = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) ir->urb_out = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) if (!ir->buf_in || !ir->packet || !ir->urb_in || !ir->urb_out ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) !usb_endpoint_is_int_in(&idesc->endpoint[0].desc) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) !usb_endpoint_is_int_out(&idesc->endpoint[1].desc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) ir->rc = rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) ir->dev = &intf->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) ir->udev = udev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) init_completion(&ir->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) pipeout = usb_sndintpipe(udev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) idesc->endpoint[1].desc.bEndpointAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) usb_fill_int_urb(ir->urb_out, udev, pipeout, ir->packet, MAX_OUT_PACKET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) iguanair_irq_out, ir, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) ir->urb_out->transfer_dma = ir->dma_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) ir->urb_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) pipein = usb_rcvintpipe(udev, idesc->endpoint[0].desc.bEndpointAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) usb_fill_int_urb(ir->urb_in, udev, pipein, ir->buf_in, MAX_IN_PACKET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) iguanair_rx, ir, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) ir->urb_in->transfer_dma = ir->dma_in;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) ir->urb_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) ret = usb_submit_urb(ir->urb_in, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) dev_warn(&intf->dev, "failed to submit urb: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) ret = iguanair_get_features(ir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) goto out2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) snprintf(ir->name, sizeof(ir->name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) "IguanaWorks USB IR Transceiver version 0x%04x", ir->version);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) usb_make_path(ir->udev, ir->phys, sizeof(ir->phys));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) rc->device_name = ir->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) rc->input_phys = ir->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) usb_to_input_id(ir->udev, &rc->input_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) rc->dev.parent = &intf->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) rc->priv = ir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) rc->open = iguanair_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) rc->close = iguanair_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) rc->s_tx_mask = iguanair_set_tx_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) rc->s_tx_carrier = iguanair_set_tx_carrier;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) rc->tx_ir = iguanair_tx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) rc->driver_name = KBUILD_MODNAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) rc->map_name = RC_MAP_RC6_MCE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) rc->min_timeout = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) rc->timeout = IR_DEFAULT_TIMEOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) rc->rx_resolution = RX_RESOLUTION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) iguanair_set_tx_carrier(rc, 38000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) iguanair_set_tx_mask(rc, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) ret = rc_register_device(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) dev_err(&intf->dev, "failed to register rc device %d", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) goto out2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) usb_set_intfdata(intf, ir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) out2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) usb_kill_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) usb_kill_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (ir) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) usb_free_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) usb_free_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) usb_free_coherent(udev, MAX_IN_PACKET, ir->buf_in, ir->dma_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) usb_free_coherent(udev, MAX_OUT_PACKET, ir->packet,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) ir->dma_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) rc_free_device(rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) kfree(ir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) static void iguanair_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) struct iguanair *ir = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) rc_unregister_device(ir->rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) usb_set_intfdata(intf, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) usb_kill_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) usb_kill_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) usb_free_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) usb_free_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) usb_free_coherent(ir->udev, MAX_IN_PACKET, ir->buf_in, ir->dma_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) usb_free_coherent(ir->udev, MAX_OUT_PACKET, ir->packet, ir->dma_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) kfree(ir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) static int iguanair_suspend(struct usb_interface *intf, pm_message_t message)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) struct iguanair *ir = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) if (ir->receiver_on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) rc = iguanair_receiver(ir, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) dev_warn(ir->dev, "failed to disable receiver for suspend\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) usb_kill_urb(ir->urb_in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) usb_kill_urb(ir->urb_out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) static int iguanair_resume(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) struct iguanair *ir = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) rc = usb_submit_urb(ir->urb_in, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) dev_warn(&intf->dev, "failed to submit urb: %d\n", rc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) if (ir->receiver_on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) rc = iguanair_receiver(ir, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) dev_warn(ir->dev, "failed to enable receiver after resume\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) static const struct usb_device_id iguanair_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) { USB_DEVICE(0x1781, 0x0938) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) static struct usb_driver iguanair_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) .name = KBUILD_MODNAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) .probe = iguanair_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) .disconnect = iguanair_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) .suspend = iguanair_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) .resume = iguanair_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) .reset_resume = iguanair_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) .id_table = iguanair_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) .soft_unbind = 1 /* we want to disable receiver on unbind */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) module_usb_driver(iguanair_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) MODULE_DESCRIPTION("IguanaWorks USB IR Transceiver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) MODULE_AUTHOR("Sean Young <sean@mess.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) MODULE_DEVICE_TABLE(usb, iguanair_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags