Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Framework for ISA radio drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * This takes care of all the V4L2 scaffolding, allowing the ISA drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * to concentrate on the actual hardware operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Copyright (C) 2012 Hans Verkuil <hans.verkuil@cisco.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^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/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/videodev2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <media/v4l2-device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <media/v4l2-ioctl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <media/v4l2-fh.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <media/v4l2-ctrls.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <media/v4l2-event.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include "radio-isa.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) MODULE_AUTHOR("Hans Verkuil");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) MODULE_DESCRIPTION("A framework for ISA radio drivers.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define FREQ_LOW  (87U * 16000U)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define FREQ_HIGH (108U * 16000U)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) static int radio_isa_querycap(struct file *file, void  *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 					struct v4l2_capability *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct radio_isa_card *isa = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	strscpy(v->driver, isa->drv->driver.driver.name, sizeof(v->driver));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	strscpy(v->card, isa->drv->card, sizeof(v->card));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	snprintf(v->bus_info, sizeof(v->bus_info), "ISA:%s", isa->v4l2_dev.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) static int radio_isa_g_tuner(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 				struct v4l2_tuner *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	struct radio_isa_card *isa = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	const struct radio_isa_ops *ops = isa->drv->ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	if (v->index > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	strscpy(v->name, "FM", sizeof(v->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	v->type = V4L2_TUNER_RADIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	v->rangelow = FREQ_LOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	v->rangehigh = FREQ_HIGH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	v->capability = V4L2_TUNER_CAP_LOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	if (isa->drv->has_stereo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 		v->capability |= V4L2_TUNER_CAP_STEREO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	if (ops->g_rxsubchans)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		v->rxsubchans = ops->g_rxsubchans(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	v->audmode = isa->stereo ? V4L2_TUNER_MODE_STEREO : V4L2_TUNER_MODE_MONO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (ops->g_signal)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		v->signal = ops->g_signal(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		v->signal = (v->rxsubchans & V4L2_TUNER_SUB_STEREO) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 								0xffff : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	return 0;
^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 int radio_isa_s_tuner(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 				const struct v4l2_tuner *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	struct radio_isa_card *isa = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	const struct radio_isa_ops *ops = isa->drv->ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	if (v->index)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	if (ops->s_stereo) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		isa->stereo = (v->audmode == V4L2_TUNER_MODE_STEREO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		return ops->s_stereo(isa, isa->stereo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) static int radio_isa_s_frequency(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 				const struct v4l2_frequency *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	struct radio_isa_card *isa = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	u32 freq = f->frequency;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	freq = clamp(freq, FREQ_LOW, FREQ_HIGH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	res = isa->drv->ops->s_frequency(isa, freq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	if (res == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		isa->freq = freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static int radio_isa_g_frequency(struct file *file, void *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 				struct v4l2_frequency *f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	struct radio_isa_card *isa = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	if (f->tuner != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	f->type = V4L2_TUNER_RADIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	f->frequency = isa->freq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int radio_isa_s_ctrl(struct v4l2_ctrl *ctrl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct radio_isa_card *isa =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 		container_of(ctrl->handler, struct radio_isa_card, hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	switch (ctrl->id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	case V4L2_CID_AUDIO_MUTE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		return isa->drv->ops->s_mute_volume(isa, ctrl->val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 				isa->volume ? isa->volume->val : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static int radio_isa_log_status(struct file *file, void *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct radio_isa_card *isa = video_drvdata(file);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	v4l2_info(&isa->v4l2_dev, "I/O Port = 0x%03x\n", isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	v4l2_ctrl_handler_log_status(&isa->hdl, isa->v4l2_dev.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	return 0;
^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) static const struct v4l2_ctrl_ops radio_isa_ctrl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	.s_ctrl = radio_isa_s_ctrl,
^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) static const struct v4l2_file_operations radio_isa_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	.open		= v4l2_fh_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	.release	= v4l2_fh_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	.poll		= v4l2_ctrl_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	.unlocked_ioctl	= video_ioctl2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static const struct v4l2_ioctl_ops radio_isa_ioctl_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	.vidioc_querycap    = radio_isa_querycap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	.vidioc_g_tuner     = radio_isa_g_tuner,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	.vidioc_s_tuner     = radio_isa_s_tuner,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	.vidioc_g_frequency = radio_isa_g_frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	.vidioc_s_frequency = radio_isa_s_frequency,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	.vidioc_log_status  = radio_isa_log_status,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	.vidioc_subscribe_event   = v4l2_ctrl_subscribe_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) int radio_isa_match(struct device *pdev, unsigned int dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	struct radio_isa_driver *drv = pdev->platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	return drv->probe || drv->io_params[dev] >= 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) EXPORT_SYMBOL_GPL(radio_isa_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) static bool radio_isa_valid_io(const struct radio_isa_driver *drv, int io)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	for (i = 0; i < drv->num_of_io_ports; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		if (drv->io_ports[i] == io)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 			return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static struct radio_isa_card *radio_isa_alloc(struct radio_isa_driver *drv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 				struct device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	struct v4l2_device *v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	struct radio_isa_card *isa = drv->ops->alloc();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	if (!isa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	dev_set_drvdata(pdev, isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	isa->drv = drv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	v4l2_dev = &isa->v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	strscpy(v4l2_dev->name, dev_name(pdev), sizeof(v4l2_dev->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	return isa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) static int radio_isa_common_probe(struct radio_isa_card *isa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				  struct device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 				  int radio_nr, unsigned region_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	const struct radio_isa_driver *drv = isa->drv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	const struct radio_isa_ops *ops = drv->ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	struct v4l2_device *v4l2_dev = &isa->v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (!request_region(isa->io, region_size, v4l2_dev->name)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		v4l2_err(v4l2_dev, "port 0x%x already in use\n", isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		kfree(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	res = v4l2_device_register(pdev, v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		goto err_dev_reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	v4l2_ctrl_handler_init(&isa->hdl, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	isa->mute = v4l2_ctrl_new_std(&isa->hdl, &radio_isa_ctrl_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 				V4L2_CID_AUDIO_MUTE, 0, 1, 1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	if (drv->max_volume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		isa->volume = v4l2_ctrl_new_std(&isa->hdl, &radio_isa_ctrl_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			V4L2_CID_AUDIO_VOLUME, 0, drv->max_volume, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 			drv->max_volume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	v4l2_dev->ctrl_handler = &isa->hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	if (isa->hdl.error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		res = isa->hdl.error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		v4l2_err(v4l2_dev, "Could not register controls\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		goto err_hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	if (drv->max_volume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		v4l2_ctrl_cluster(2, &isa->mute);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	v4l2_dev->ctrl_handler = &isa->hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	mutex_init(&isa->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	isa->vdev.lock = &isa->lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	strscpy(isa->vdev.name, v4l2_dev->name, sizeof(isa->vdev.name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	isa->vdev.v4l2_dev = v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	isa->vdev.fops = &radio_isa_fops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	isa->vdev.ioctl_ops = &radio_isa_ioctl_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	isa->vdev.release = video_device_release_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	isa->vdev.device_caps = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	video_set_drvdata(&isa->vdev, isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	isa->freq = FREQ_LOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	isa->stereo = drv->has_stereo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	if (ops->init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		res = ops->init(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (!res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		res = v4l2_ctrl_handler_setup(&isa->hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	if (!res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		res = ops->s_frequency(isa, isa->freq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	if (!res && ops->s_stereo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		res = ops->s_stereo(isa, isa->stereo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 		v4l2_err(v4l2_dev, "Could not setup card\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		goto err_hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	res = video_register_device(&isa->vdev, VFL_TYPE_RADIO, radio_nr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 		v4l2_err(v4l2_dev, "Could not register device node\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		goto err_hdl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	v4l2_info(v4l2_dev, "Initialized radio card %s on port 0x%03x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 			drv->card, isa->io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) err_hdl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	v4l2_ctrl_handler_free(&isa->hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) err_dev_reg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	release_region(isa->io, region_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	kfree(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static int radio_isa_common_remove(struct radio_isa_card *isa,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 				   unsigned region_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	const struct radio_isa_ops *ops = isa->drv->ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	ops->s_mute_volume(isa, true, isa->volume ? isa->volume->cur.val : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	video_unregister_device(&isa->vdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	v4l2_ctrl_handler_free(&isa->hdl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	v4l2_device_unregister(&isa->v4l2_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	release_region(isa->io, region_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	v4l2_info(&isa->v4l2_dev, "Removed radio card %s\n", isa->drv->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	kfree(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) int radio_isa_probe(struct device *pdev, unsigned int dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	struct radio_isa_driver *drv = pdev->platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	const struct radio_isa_ops *ops = drv->ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	struct v4l2_device *v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	struct radio_isa_card *isa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	isa = radio_isa_alloc(drv, pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	if (!isa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	isa->io = drv->io_params[dev];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	v4l2_dev = &isa->v4l2_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	if (drv->probe && ops->probe) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 		for (i = 0; i < drv->num_of_io_ports; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 			int io = drv->io_ports[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 			if (request_region(io, drv->region_size, v4l2_dev->name)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 				bool found = ops->probe(isa, io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 				release_region(io, drv->region_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 				if (found) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 					isa->io = io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 				}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	if (!radio_isa_valid_io(drv, isa->io)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 		int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		if (isa->io < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 			return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x%03x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 				drv->io_ports[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		for (i = 1; i < drv->num_of_io_ports; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 			printk(KERN_CONT "/0x%03x", drv->io_ports[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		printk(KERN_CONT ".\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 		kfree(isa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	return radio_isa_common_probe(isa, pdev, drv->radio_nr_params[dev],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 					drv->region_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) EXPORT_SYMBOL_GPL(radio_isa_probe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int radio_isa_remove(struct device *pdev, unsigned int dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	struct radio_isa_card *isa = dev_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	return radio_isa_common_remove(isa, isa->drv->region_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) EXPORT_SYMBOL_GPL(radio_isa_remove);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) #ifdef CONFIG_PNP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) int radio_isa_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	struct pnp_driver *pnp_drv = to_pnp_driver(dev->dev.driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	struct radio_isa_driver *drv = container_of(pnp_drv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 					struct radio_isa_driver, pnp_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	struct radio_isa_card *isa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	if (!pnp_port_valid(dev, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	isa = radio_isa_alloc(drv, &dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	if (!isa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	isa->io = pnp_port_start(dev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	return radio_isa_common_probe(isa, &dev->dev, drv->radio_nr_params[0],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 					pnp_port_len(dev, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) EXPORT_SYMBOL_GPL(radio_isa_pnp_probe);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) void radio_isa_pnp_remove(struct pnp_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	struct radio_isa_card *isa = dev_get_drvdata(&dev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	radio_isa_common_remove(isa, pnp_port_len(dev, 0));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) EXPORT_SYMBOL_GPL(radio_isa_pnp_remove);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) #endif