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media: rockchip: hdmirx: add hdmirx class for audio info

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Signed-off-by: Shunhua Lan <lsh@rock-chips.com>
Change-Id: Ifd4f9cd9e28318f49fdc3da95113819de3775587
This commit is contained in:
Shunhua Lan
2022-03-10 20:02:56 +08:00
committed by Tao Huang
parent 7cceedfb74
commit 0260220515
1 changed files with 63 additions and 1 deletions
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64
drivers/media/platform/rockchip/hdmirx/rk_hdmirx.c
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@@ -38,6 +38,7 @@
#include "rk_hdmirx.h"
#include "rk_hdmirx_cec.h"
static struct class *hdmirx_class;
static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-3)");
@@ -139,6 +140,7 @@ struct hdmirx_stream {
struct rk_hdmirx_dev {
struct device *dev;
struct device *classdev;
struct device_node *of_node;
struct hdmirx_stream stream;
struct v4l2_device v4l2_dev;
@@ -2360,6 +2362,14 @@ static void hdmirx_unregister_audio_device(void *data)
}
}
static void hdmirx_unregister_class_device(void *data)
{
struct rk_hdmirx_dev *hdmirx_dev = data;
struct device *dev = hdmirx_dev->classdev;
device_unregister(dev);
}
static const char *audio_fifo_err(u32 fifo_status)
{
switch (fifo_status & (AFIFO_UNDERFLOW_ST | AFIFO_OVERFLOW_ST)) {
@@ -2682,6 +2692,32 @@ static const struct dev_pm_ops rk_hdmirx_pm_ops = {
SET_RUNTIME_PM_OPS(hdmirx_runtime_suspend, hdmirx_runtime_resume, NULL)
};
static ssize_t audio_rate_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct rk_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%d", hdmirx_dev->audio_state.fs_audio);
}
static ssize_t audio_present_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct rk_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
return snprintf(buf, PAGE_SIZE, "%d", hdmirx_dev->audio_present);
}
static DEVICE_ATTR_RO(audio_rate);
static DEVICE_ATTR_RO(audio_present);
static struct attribute *hdmirx_attrs[] = {
&dev_attr_audio_rate.attr,
&dev_attr_audio_present.attr,
NULL
};
ATTRIBUTE_GROUPS(hdmirx);
static int hdmirx_probe(struct platform_device *pdev)
{
const struct v4l2_dv_timings timings_def = HDMIRX_DEFAULT_TIMING;
@@ -2800,6 +2836,17 @@ static int hdmirx_probe(struct platform_device *pdev)
if (ret)
goto err_unreg_video_dev;
hdmirx_dev->classdev = device_create_with_groups(hdmirx_class,
dev, MKDEV(0, 0),
hdmirx_dev,
hdmirx_groups,
"hdmirx");
if (IS_ERR(hdmirx_dev->classdev))
goto err_unreg_video_dev;
ret = devm_add_action_or_reset(dev, hdmirx_unregister_class_device, hdmirx_dev);
if (ret)
goto err_unreg_video_dev;
irq = gpiod_to_irq(hdmirx_dev->hdmirx_det_gpio);
if (irq < 0) {
dev_err(dev, "failed to get hdmirx-det gpio irq\n");
@@ -2905,7 +2952,22 @@ static struct platform_driver hdmirx_driver = {
.pm = &rk_hdmirx_pm_ops,
}
};
module_platform_driver(hdmirx_driver);
static int __init hdmirx_init(void)
{
hdmirx_class = class_create(THIS_MODULE, "hdmirx");
if (IS_ERR(hdmirx_class))
return PTR_ERR(hdmirx_class);
return platform_driver_register(&hdmirx_driver);
}
module_init(hdmirx_init);
static void __exit hdmirx_exit(void)
{
platform_driver_unregister(&hdmirx_driver);
class_destroy(hdmirx_class);
}
module_exit(hdmirx_exit);
MODULE_DESCRIPTION("Rockchip HDMI Receiver Driver");
MODULE_AUTHOR("Dingxian Wen <shawn.wen@rock-chips.com>");