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-rw-r--r--drivers/extcon/Makefile4
-rw-r--r--drivers/extcon/extcon-arizona.c72
-rw-r--r--drivers/extcon/extcon-class.c (renamed from drivers/extcon/extcon_class.c)4
-rw-r--r--drivers/extcon/extcon-gpio.c (renamed from drivers/extcon/extcon_gpio.c)0
4 files changed, 71 insertions, 9 deletions
diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile
index 88961b332348..9c0682daefb8 100644
--- a/drivers/extcon/Makefile
+++ b/drivers/extcon/Makefile
@@ -2,8 +2,8 @@
# Makefile for external connector class (extcon) devices
#
-obj-$(CONFIG_EXTCON) += extcon_class.o
-obj-$(CONFIG_EXTCON_GPIO) += extcon_gpio.o
+obj-$(CONFIG_EXTCON) += extcon-class.o
+obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o
obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o
obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o
obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 427a289f32a5..fa2114f1f9ec 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/gpio.h>
+#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
@@ -30,11 +31,14 @@
#include <linux/mfd/arizona/pdata.h>
#include <linux/mfd/arizona/registers.h>
+#define ARIZONA_NUM_BUTTONS 6
+
struct arizona_extcon_info {
struct device *dev;
struct arizona *arizona;
struct mutex lock;
struct regulator *micvdd;
+ struct input_dev *input;
int micd_mode;
const struct arizona_micd_config *micd_modes;
@@ -54,6 +58,18 @@ static const struct arizona_micd_config micd_default_modes[] = {
{ 0, 2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 },
};
+static struct {
+ u16 status;
+ int report;
+} arizona_lvl_to_key[ARIZONA_NUM_BUTTONS] = {
+ { 0x1, BTN_0 },
+ { 0x2, BTN_1 },
+ { 0x4, BTN_2 },
+ { 0x8, BTN_3 },
+ { 0x10, BTN_4 },
+ { 0x20, BTN_5 },
+};
+
#define ARIZONA_CABLE_MECHANICAL 0
#define ARIZONA_CABLE_MICROPHONE 1
#define ARIZONA_CABLE_HEADPHONE 2
@@ -133,6 +149,7 @@ static void arizona_stop_mic(struct arizona_extcon_info *info)
if (change) {
regulator_disable(info->micvdd);
+ pm_runtime_mark_last_busy(info->dev);
pm_runtime_put_autosuspend(info->dev);
}
}
@@ -141,8 +158,8 @@ static irqreturn_t arizona_micdet(int irq, void *data)
{
struct arizona_extcon_info *info = data;
struct arizona *arizona = info->arizona;
- unsigned int val;
- int ret;
+ unsigned int val, lvl;
+ int ret, i;
mutex_lock(&info->lock);
@@ -219,13 +236,22 @@ static irqreturn_t arizona_micdet(int irq, void *data)
/*
* If we're still detecting and we detect a short then we've
- * got a headphone. Otherwise it's a button press, the
- * button reporting is stubbed out for now.
+ * got a headphone. Otherwise it's a button press.
*/
if (val & 0x3fc) {
if (info->mic) {
dev_dbg(arizona->dev, "Mic button detected\n");
+ lvl = val & ARIZONA_MICD_LVL_MASK;
+ lvl >>= ARIZONA_MICD_LVL_SHIFT;
+
+ for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+ if (lvl & arizona_lvl_to_key[i].status)
+ input_report_key(info->input,
+ arizona_lvl_to_key[i].report,
+ 1);
+ input_sync(info->input);
+
} else if (info->detecting) {
dev_dbg(arizona->dev, "Headphone detected\n");
info->detecting = false;
@@ -244,6 +270,10 @@ static irqreturn_t arizona_micdet(int irq, void *data)
}
} else {
dev_dbg(arizona->dev, "Mic button released\n");
+ for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+ input_report_key(info->input,
+ arizona_lvl_to_key[i].report, 0);
+ input_sync(info->input);
}
handled:
@@ -258,7 +288,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
struct arizona_extcon_info *info = data;
struct arizona *arizona = info->arizona;
unsigned int val;
- int ret;
+ int ret, i;
pm_runtime_get_sync(info->dev);
@@ -288,6 +318,11 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
arizona_stop_mic(info);
+ for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+ input_report_key(info->input,
+ arizona_lvl_to_key[i].report, 0);
+ input_sync(info->input);
+
ret = extcon_update_state(&info->edev, 0xffffffff, 0);
if (ret != 0)
dev_err(arizona->dev, "Removal report failed: %d\n",
@@ -307,7 +342,7 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
struct arizona_pdata *pdata;
struct arizona_extcon_info *info;
- int ret, mode;
+ int ret, mode, i;
pdata = dev_get_platdata(arizona->dev);
@@ -382,6 +417,20 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
arizona_extcon_set_mode(info, 0);
+ info->input = input_allocate_device();
+ if (!info->input) {
+ dev_err(arizona->dev, "Can't allocate input dev\n");
+ ret = -ENOMEM;
+ goto err_register;
+ }
+
+ for (i = 0; i < ARIZONA_NUM_BUTTONS; i++)
+ input_set_capability(info->input, EV_KEY,
+ arizona_lvl_to_key[i].report);
+ info->input->name = "Headset";
+ info->input->phys = "arizona/extcon";
+ info->input->dev.parent = &pdev->dev;
+
pm_runtime_enable(&pdev->dev);
pm_runtime_idle(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
@@ -391,7 +440,7 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
if (ret != 0) {
dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
ret);
- goto err_register;
+ goto err_input;
}
ret = arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 1);
@@ -436,6 +485,12 @@ static int __devinit arizona_extcon_probe(struct platform_device *pdev)
pm_runtime_put(&pdev->dev);
+ ret = input_register_device(info->input);
+ if (ret) {
+ dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
+ goto err_fall_wake;
+ }
+
return 0;
err_fall_wake:
@@ -446,6 +501,8 @@ err_rise_wake:
arizona_set_irq_wake(arizona, ARIZONA_IRQ_JD_RISE, 0);
err_rise:
arizona_free_irq(arizona, ARIZONA_IRQ_JD_RISE, info);
+err_input:
+ input_free_device(info->input);
err_register:
pm_runtime_disable(&pdev->dev);
extcon_dev_unregister(&info->edev);
@@ -468,6 +525,7 @@ static int __devexit arizona_extcon_remove(struct platform_device *pdev)
regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
ARIZONA_JD1_ENA, 0);
arizona_clk32k_disable(arizona);
+ input_unregister_device(info->input);
extcon_dev_unregister(&info->edev);
return 0;
diff --git a/drivers/extcon/extcon_class.c b/drivers/extcon/extcon-class.c
index f6419f9db76c..481cfa0f2118 100644
--- a/drivers/extcon/extcon_class.c
+++ b/drivers/extcon/extcon-class.c
@@ -30,6 +30,7 @@
#include <linux/err.h>
#include <linux/extcon.h>
#include <linux/slab.h>
+#include <linux/sysfs.h>
/*
* extcon_cable_name suggests the standard cable names for commonly used
@@ -673,10 +674,12 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
cable->attr_g.name = str;
cable->attr_g.attrs = cable->attrs;
+ sysfs_attr_init(&cable->attr_name.attr);
cable->attr_name.attr.name = "name";
cable->attr_name.attr.mode = 0444;
cable->attr_name.show = cable_name_show;
+ sysfs_attr_init(&cable->attr_state.attr);
cable->attr_state.attr.name = "state";
cable->attr_state.attr.mode = 0644;
cable->attr_state.show = cable_state_show;
@@ -722,6 +725,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
goto err_muex;
}
strcpy(name, buf);
+ sysfs_attr_init(&edev->d_attrs_muex[index].attr);
edev->d_attrs_muex[index].attr.name = name;
edev->d_attrs_muex[index].attr.mode = 0000;
edev->attrs_muex[index] = &edev->d_attrs_muex[index]
diff --git a/drivers/extcon/extcon_gpio.c b/drivers/extcon/extcon-gpio.c
index 3cc152e690b0..3cc152e690b0 100644
--- a/drivers/extcon/extcon_gpio.c
+++ b/drivers/extcon/extcon-gpio.c
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-13 13:45:54 +0000