Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  * Linux V4L2 radio driver for the Griffin radioSHARK2 USB radio receiver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Note the radioSHARK2 offers the audio through a regular USB audio device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * this driver only handles the tuning.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * The info necessary to drive the shark2 was taken from the small userspace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * shark2.c program by Hisaaki Shibata, which he kindly placed in the Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Domain.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * Copyright (c) 2012 Hans de Goede <hdegoede@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  * This program is free software; you can redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * the Free Software Foundation; either version 2 of the License, or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  * (at your option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * This program is distributed in the hope that it will be useful,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  * but WITHOUT ANY WARRANTY; without even the implied warranty of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * GNU General Public License for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #include <media/v4l2-device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #include "radio-tea5777.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #if defined(CONFIG_LEDS_CLASS) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)     (defined(CONFIG_LEDS_CLASS_MODULE) && defined(CONFIG_RADIO_SHARK2_MODULE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define SHARK_USE_LEDS 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) MODULE_DESCRIPTION("Griffin radioSHARK2, USB radio receiver driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static int debug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) module_param(debug, int, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) MODULE_PARM_DESC(debug, "Debug level (0-1)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #define SHARK_IN_EP		0x83
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #define SHARK_OUT_EP		0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #define TB_LEN 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define DRV_NAME "radioshark2"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) #define v4l2_dev_to_shark(d) container_of(d, struct shark_device, v4l2_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) enum { BLUE_LED, RED_LED, NO_LEDS };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) struct shark_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	struct usb_device *usbdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct v4l2_device v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	struct radio_tea5777 tea;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) #ifdef SHARK_USE_LEDS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	struct work_struct led_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	struct led_classdev leds[NO_LEDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	char led_names[NO_LEDS][32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	atomic_t brightness[NO_LEDS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	unsigned long brightness_new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	u8 *transfer_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) static atomic_t shark_instance = ATOMIC_INIT(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static int shark_write_reg(struct radio_tea5777 *tea, u64 reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	struct shark_device *shark = tea->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	int i, res, actual_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	memset(shark->transfer_buffer, 0, TB_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	shark->transfer_buffer[0] = 0x81; /* Write register command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	for (i = 0; i < 6; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		shark->transfer_buffer[i + 1] = (reg >> (40 - i * 8)) & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	v4l2_dbg(1, debug, tea->v4l2_dev, "shark2-write: %*ph\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		 7, shark->transfer_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	res = usb_interrupt_msg(shark->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 				usb_sndintpipe(shark->usbdev, SHARK_OUT_EP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 				shark->transfer_buffer, TB_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 				&actual_len, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		v4l2_err(tea->v4l2_dev, "write error: %d\n", res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int shark_read_reg(struct radio_tea5777 *tea, u32 *reg_ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	struct shark_device *shark = tea->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	int i, res, actual_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	u32 reg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	memset(shark->transfer_buffer, 0, TB_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	shark->transfer_buffer[0] = 0x82;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	res = usb_interrupt_msg(shark->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 				usb_sndintpipe(shark->usbdev, SHARK_OUT_EP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 				shark->transfer_buffer, TB_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 				&actual_len, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		v4l2_err(tea->v4l2_dev, "request-read error: %d\n", res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	res = usb_interrupt_msg(shark->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 				usb_rcvintpipe(shark->usbdev, SHARK_IN_EP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 				shark->transfer_buffer, TB_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 				&actual_len, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		v4l2_err(tea->v4l2_dev, "read error: %d\n", res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	for (i = 0; i < 3; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		reg |= shark->transfer_buffer[i] << (16 - i * 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	v4l2_dbg(1, debug, tea->v4l2_dev, "shark2-read: %*ph\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		 3, shark->transfer_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	*reg_ret = reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	return 0;
^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 const struct radio_tea5777_ops shark_tea_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	.write_reg = shark_write_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	.read_reg  = shark_read_reg,
^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) #ifdef SHARK_USE_LEDS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static void shark_led_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	struct shark_device *shark =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		container_of(work, struct shark_device, led_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	int i, res, brightness, actual_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		if (!test_and_clear_bit(i, &shark->brightness_new))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		brightness = atomic_read(&shark->brightness[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		memset(shark->transfer_buffer, 0, TB_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		shark->transfer_buffer[0] = 0x83 + i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		shark->transfer_buffer[1] = brightness;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 		res = usb_interrupt_msg(shark->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 					usb_sndintpipe(shark->usbdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 						       SHARK_OUT_EP),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 					shark->transfer_buffer, TB_LEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 					&actual_len, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		if (res < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 			v4l2_err(&shark->v4l2_dev, "set LED %s error: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 				 shark->led_names[i], res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static void shark_led_set_blue(struct led_classdev *led_cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			       enum led_brightness value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	struct shark_device *shark =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		container_of(led_cdev, struct shark_device, leds[BLUE_LED]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	atomic_set(&shark->brightness[BLUE_LED], value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	set_bit(BLUE_LED, &shark->brightness_new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	schedule_work(&shark->led_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static void shark_led_set_red(struct led_classdev *led_cdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 			      enum led_brightness value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	struct shark_device *shark =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		container_of(led_cdev, struct shark_device, leds[RED_LED]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	atomic_set(&shark->brightness[RED_LED], value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	set_bit(RED_LED, &shark->brightness_new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	schedule_work(&shark->led_work);
^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 const struct led_classdev shark_led_templates[NO_LEDS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	[BLUE_LED] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		.name		= "%s:blue:",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		.brightness	= LED_OFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		.max_brightness = 127,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		.brightness_set = shark_led_set_blue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	[RED_LED] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		.name		= "%s:red:",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		.brightness	= LED_OFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		.max_brightness = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		.brightness_set = shark_led_set_red,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static int shark_register_leds(struct shark_device *shark, struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	int i, retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	atomic_set(&shark->brightness[BLUE_LED], 127);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	INIT_WORK(&shark->led_work, shark_led_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	for (i = 0; i < NO_LEDS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		shark->leds[i] = shark_led_templates[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		snprintf(shark->led_names[i], sizeof(shark->led_names[0]),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 			 shark->leds[i].name, shark->v4l2_dev.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		shark->leds[i].name = shark->led_names[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		retval = led_classdev_register(dev, &shark->leds[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			v4l2_err(&shark->v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 				 "couldn't register led: %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 				 shark->led_names[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) static void shark_unregister_leds(struct shark_device *shark)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	for (i = 0; i < NO_LEDS; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		led_classdev_unregister(&shark->leds[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	cancel_work_sync(&shark->led_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) static inline void shark_resume_leds(struct shark_device *shark)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	for (i = 0; i < NO_LEDS; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		set_bit(i, &shark->brightness_new);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	schedule_work(&shark->led_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static int shark_register_leds(struct shark_device *shark, struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	v4l2_warn(&shark->v4l2_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		  "CONFIG_LEDS_CLASS not enabled, LED support disabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) static inline void shark_unregister_leds(struct shark_device *shark) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) static inline void shark_resume_leds(struct shark_device *shark) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static void usb_shark_disconnect(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	mutex_lock(&shark->tea.mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	v4l2_device_disconnect(&shark->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	radio_tea5777_exit(&shark->tea);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	mutex_unlock(&shark->tea.mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	shark_unregister_leds(shark);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	v4l2_device_put(&shark->v4l2_dev);
^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) static void usb_shark_release(struct v4l2_device *v4l2_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	v4l2_device_unregister(&shark->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	kfree(shark->transfer_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	kfree(shark);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) static int usb_shark_probe(struct usb_interface *intf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 			   const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	struct shark_device *shark;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	int retval = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	shark = kzalloc(sizeof(struct shark_device), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	if (!shark)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	shark->transfer_buffer = kmalloc(TB_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	if (!shark->transfer_buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		goto err_alloc_buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	v4l2_device_set_name(&shark->v4l2_dev, DRV_NAME, &shark_instance);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	retval = shark_register_leds(shark, &intf->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	if (retval)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		goto err_reg_leds;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	shark->v4l2_dev.release = usb_shark_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	retval = v4l2_device_register(&intf->dev, &shark->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		v4l2_err(&shark->v4l2_dev, "couldn't register v4l2_device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		goto err_reg_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	shark->usbdev = interface_to_usbdev(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	shark->tea.v4l2_dev = &shark->v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	shark->tea.private_data = shark;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	shark->tea.ops = &shark_tea_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	shark->tea.has_am = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	shark->tea.write_before_read = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	strscpy(shark->tea.card, "Griffin radioSHARK2",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		sizeof(shark->tea.card));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	usb_make_path(shark->usbdev, shark->tea.bus_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		sizeof(shark->tea.bus_info));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	retval = radio_tea5777_init(&shark->tea, THIS_MODULE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	if (retval) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		v4l2_err(&shark->v4l2_dev, "couldn't init tea5777\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 		goto err_init_tea;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	}
^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) err_init_tea:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	v4l2_device_unregister(&shark->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) err_reg_dev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	shark_unregister_leds(shark);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) err_reg_leds:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	kfree(shark->transfer_buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) err_alloc_buffer:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	kfree(shark);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	return retval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) static int usb_shark_suspend(struct usb_interface *intf, pm_message_t message)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) static int usb_shark_resume(struct usb_interface *intf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	struct v4l2_device *v4l2_dev = usb_get_intfdata(intf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	struct shark_device *shark = v4l2_dev_to_shark(v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	mutex_lock(&shark->tea.mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	ret = radio_tea5777_set_freq(&shark->tea);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	mutex_unlock(&shark->tea.mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	shark_resume_leds(shark);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /* Specify the bcdDevice value, as the radioSHARK and radioSHARK2 share ids */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) static const struct usb_device_id usb_shark_device_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 			 USB_DEVICE_ID_MATCH_INT_CLASS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	  .idVendor     = 0x077d,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	  .idProduct    = 0x627a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	  .bcdDevice_lo = 0x0010,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 	  .bcdDevice_hi = 0x0010,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	  .bInterfaceClass = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) MODULE_DEVICE_TABLE(usb, usb_shark_device_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) static struct usb_driver usb_shark_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	.name			= DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	.probe			= usb_shark_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	.disconnect		= usb_shark_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	.id_table		= usb_shark_device_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	.suspend		= usb_shark_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	.resume			= usb_shark_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	.reset_resume		= usb_shark_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) module_usb_driver(usb_shark_driver);