--- /dev/null
+Qualcomm's PM8941 USB ID Extcon device
+
+Some Qualcomm PMICs have a "misc" module that can be used to detect when
+the USB ID pin has been pulled low or high.
+
+PROPERTIES
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: Should contain "qcom,pm8941-misc";
+
+- reg:
+ Usage: required
+ Value type: <u32>
+ Definition: Should contain the offset to the misc address space
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: Should contain the usb id interrupt
+
+- interrupt-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: Should contain the string "usb_id" for the usb id interrupt
+
+Example:
+
+ pmic {
+ usb_id: misc@900 {
+ compatible = "qcom,pm8941-misc";
+ reg = <0x900>;
+ interrupts = <0x0 0x9 0 IRQ_TYPE_EDGE_BOTH>;
+ interrupt-names = "usb_id";
+ };
+ }
+
+ usb-controller {
+ extcon = <&usb_id>;
+ };
Say Y here to enable support for USB peripheral and USB host
detection by palmas usb.
+config EXTCON_QCOM_SPMI_MISC
+ tristate "Qualcomm USB extcon support"
+ help
+ Say Y here to enable SPMI PMIC based USB cable detection
+ support on Qualcomm PMICs such as PM8941.
+
config EXTCON_RT8973A
tristate "Richtek RT8973A EXTCON support"
depends on I2C
obj-$(CONFIG_EXTCON_MAX77843) += extcon-max77843.o
obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o
obj-$(CONFIG_EXTCON_PALMAS) += extcon-palmas.o
+obj-$(CONFIG_EXTCON_QCOM_SPMI_MISC) += extcon-qcom-spmi-misc.o
obj-$(CONFIG_EXTCON_RT8973A) += extcon-rt8973a.o
obj-$(CONFIG_EXTCON_SM5502) += extcon-sm5502.o
obj-$(CONFIG_EXTCON_USB_GPIO) += extcon-usb-gpio.o
*
* Analog Jack extcon driver with ADC-based detection capability.
*
+ * Copyright (C) 2016 Samsung Electronics
+ * Chanwoo Choi <cw00.choi@samsung.com>
+ *
* Copyright (C) 2012 Samsung Electronics
* MyungJoo Ham <myungjoo.ham@samsung.com>
*
struct adc_jack_data *data = container_of(to_delayed_work(work),
struct adc_jack_data,
handler);
- u32 state = 0;
+ struct adc_jack_cond *def;
int ret, adc_val;
int i;
/* Get state from adc value with adc_conditions */
for (i = 0; i < data->num_conditions; i++) {
- struct adc_jack_cond *def = &data->adc_conditions[i];
- if (!def->state)
- break;
+ def = &data->adc_conditions[i];
if (def->min_adc <= adc_val && def->max_adc >= adc_val) {
- state = def->state;
- break;
+ extcon_set_state_sync(data->edev, def->id, true);
+ return;
}
}
- /* if no def has met, it means state = 0 (no cables attached) */
- extcon_set_state(data->edev, state);
+ /* Set the detached state if adc value is not included in the range */
+ for (i = 0; i < data->num_conditions; i++) {
+ def = &data->adc_conditions[i];
+ extcon_set_state_sync(data->edev, def->id, false);
+ }
}
static irqreturn_t adc_jack_irq_thread(int irq, void *_data)
return -ENOMEM;
}
- if (!pdata->adc_conditions ||
- !pdata->adc_conditions[0].state) {
+ if (!pdata->adc_conditions) {
dev_err(&pdev->dev, "error: adc_conditions not defined.\n");
return -EINVAL;
}
data->adc_conditions = pdata->adc_conditions;
/* Check the length of array and set num_conditions */
- for (i = 0; data->adc_conditions[i].state; i++)
- ;
+ for (i = 0; data->adc_conditions[i].id != EXTCON_NONE; i++);
data->num_conditions = i;
data->chan = iio_channel_get(&pdev->dev, pdata->consumer_channel);
if (data->wakeup_source)
device_init_wakeup(&pdev->dev, 1);
+ adc_jack_handler(&data->handler.work);
return 0;
}
if (clamp)
val = ARIZONA_RMV_SHRT_HP1L;
break;
- };
+ }
snd_soc_dapm_mutex_lock(arizona->dapm);
}
/* If the cable was removed while measuring ignore the result */
- ret = extcon_get_cable_state_(info->edev, EXTCON_MECHANICAL);
+ ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
if (ret < 0) {
dev_err(arizona->dev, "Failed to check cable state: %d\n",
ret);
else
report = EXTCON_JACK_HEADPHONE;
- ret = extcon_set_cable_state_(info->edev, report, true);
+ ret = extcon_set_state_sync(info->edev, report, true);
if (ret != 0)
dev_err(arizona->dev, "Failed to report HP/line: %d\n",
ret);
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
/* Just report headphone */
- ret = extcon_set_cable_state_(info->edev, EXTCON_JACK_HEADPHONE, true);
+ ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
if (ret != 0)
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
/* Just report headphone */
- ret = extcon_set_cable_state_(info->edev, EXTCON_JACK_HEADPHONE, true);
+ ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
if (ret != 0)
dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
mutex_lock(&info->lock);
/* If the cable was removed while measuring ignore the result */
- ret = extcon_get_cable_state_(info->edev, EXTCON_MECHANICAL);
+ ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
if (ret < 0) {
dev_err(arizona->dev, "Failed to check cable state: %d\n",
ret);
arizona_identify_headphone(info);
- ret = extcon_set_cable_state_(info->edev,
+ ret = extcon_set_state_sync(info->edev,
EXTCON_JACK_MICROPHONE, true);
if (ret != 0)
dev_err(arizona->dev, "Headset report failed: %d\n",
if (info->last_jackdet == present) {
dev_dbg(arizona->dev, "Detected jack\n");
- ret = extcon_set_cable_state_(info->edev,
+ ret = extcon_set_state_sync(info->edev,
EXTCON_MECHANICAL, true);
if (ret != 0)
info->micd_ranges[i].key, 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",
- ret);
+ for (i = 0; i < ARRAY_SIZE(arizona_cable) - 1; i++) {
+ ret = extcon_set_state_sync(info->edev,
+ arizona_cable[i], false);
+ if (ret != 0)
+ dev_err(arizona->dev,
+ "Removal report failed: %d\n", ret);
+ }
regmap_update_bits(arizona->regmap,
ARIZONA_JACK_DETECT_DEBOUNCE,
switch (chrg_type) {
case DET_STAT_SDP:
- dev_dbg(info->dev, "sdp cable is connecetd\n");
+ dev_dbg(info->dev, "sdp cable is connected\n");
notify_otg = true;
notify_charger = true;
cable = EXTCON_CHG_USB_SDP;
break;
case DET_STAT_CDP:
- dev_dbg(info->dev, "cdp cable is connecetd\n");
+ dev_dbg(info->dev, "cdp cable is connected\n");
notify_otg = true;
notify_charger = true;
cable = EXTCON_CHG_USB_CDP;
break;
case DET_STAT_DCP:
- dev_dbg(info->dev, "dcp cable is connecetd\n");
+ dev_dbg(info->dev, "dcp cable is connected\n");
notify_charger = true;
cable = EXTCON_CHG_USB_DCP;
break;
}
if (notify_charger)
- extcon_set_cable_state_(info->edev, cable, vbus_attach);
+ extcon_set_state_sync(info->edev, cable, vbus_attach);
/* Clear the flags on disconnect event */
if (!vbus_attach)
state = gpiod_get_value_cansleep(data->id_gpiod);
if (data->pdata->gpio_active_low)
state = !state;
- extcon_set_state(data->edev, state);
+ extcon_set_state_sync(data->edev, data->pdata->extcon_id, state);
}
static irqreturn_t gpio_irq_handler(int irq, void *dev_id)
*
* Copyright (C) 2013,2014 Samsung Electronics
* Chanwoo Choi <cw00.choi@samsung.com>
- * Krzysztof Kozlowski <k.kozlowski@samsung.com>
+ * Krzysztof Kozlowski <krzk@kernel.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
+ extcon_set_state_sync(info->edev, EXTCON_JIG, attached);
return 0;
}
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_USB, attached);
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
break;
case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
attached);
break;
case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP,
attached);
break;
case MAX14577_CHARGER_TYPE_SPECIAL_500MA:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW,
attached);
break;
case MAX14577_CHARGER_TYPE_SPECIAL_1A:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST,
attached);
break;
case MAX14577_CHARGER_TYPE_NONE:
module_platform_driver(max14577_muic_driver);
MODULE_DESCRIPTION("Maxim 14577/77836 Extcon driver");
-MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>, Krzysztof Kozlowski <k.kozlowski@samsung.com>");
+MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>, Krzysztof Kozlowski <krzk@kernel.org>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:extcon-max14577");
* As we don't have event for USB peripheral cable attached,
* we simulate USB peripheral attach here.
*/
- extcon_set_cable_state_(data->edev, EXTCON_USB_HOST, false);
- extcon_set_cable_state_(data->edev, EXTCON_USB, true);
+ extcon_set_state_sync(data->edev, EXTCON_USB_HOST, false);
+ extcon_set_state_sync(data->edev, EXTCON_USB, true);
} else {
/*
* ID = 0 means USB HOST cable attached.
* As we don't have event for USB peripheral cable detached,
* we simulate USB peripheral detach here.
*/
- extcon_set_cable_state_(data->edev, EXTCON_USB, false);
- extcon_set_cable_state_(data->edev, EXTCON_USB_HOST, true);
+ extcon_set_state_sync(data->edev, EXTCON_USB, false);
+ extcon_set_state_sync(data->edev, EXTCON_USB_HOST, true);
}
return IRQ_HANDLED;
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_DOCK, attached);
- extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
+ extcon_set_state_sync(info->edev, EXTCON_DOCK, attached);
+ extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);
goto out;
case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */
dock_id = EXTCON_DOCK;
case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */
dock_id = EXTCON_DOCK;
if (!attached) {
- extcon_set_cable_state_(info->edev, EXTCON_USB, false);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_USB, false);
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
false);
}
break;
attached);
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, dock_id, attached);
+ extcon_set_state_sync(info->edev, dock_id, attached);
out:
return 0;
attached);
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached);
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);
break;
case MAX77693_MUIC_GND_AV_CABLE_LOAD:
/* Audio Video Cable with load, PATH:AUDIO */
attached);
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_USB, attached);
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
break;
case MAX77693_MUIC_GND_MHL:
case MAX77693_MUIC_GND_MHL_VB:
/* MHL or MHL with USB/TA cable */
- extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
+ extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);
break;
default:
dev_err(info->dev, "failed to detect %s cable of gnd type\n",
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
+ extcon_set_state_sync(info->edev, EXTCON_JIG, attached);
return 0;
}
* - Support charging through micro-usb port without
* data connection
*/
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
attached);
if (!cable_attached)
- extcon_set_cable_state_(info->edev,
+ extcon_set_state_sync(info->edev,
EXTCON_DISP_MHL, cable_attached);
break;
}
* - Support charging through micro-usb port without
* data connection.
*/
- extcon_set_cable_state_(info->edev, EXTCON_USB,
+ extcon_set_state_sync(info->edev, EXTCON_USB,
attached);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
if (!cable_attached)
- extcon_set_cable_state_(info->edev, EXTCON_DOCK,
+ extcon_set_state_sync(info->edev, EXTCON_DOCK,
cable_attached);
break;
case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_DOCK,
+ extcon_set_state_sync(info->edev, EXTCON_DOCK,
attached);
- extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL,
+ extcon_set_state_sync(info->edev, EXTCON_DISP_MHL,
attached);
break;
}
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_USB,
+ extcon_set_state_sync(info->edev, EXTCON_USB,
attached);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
break;
case MAX77693_CHARGER_TYPE_DEDICATED_CHG:
/* Only TA cable */
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
attached);
break;
}
break;
case MAX77693_CHARGER_TYPE_DOWNSTREAM_PORT:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP,
attached);
break;
case MAX77693_CHARGER_TYPE_APPLE_500MA:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW,
attached);
break;
case MAX77693_CHARGER_TYPE_APPLE_1A_2A:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST,
attached);
break;
case MAX77693_CHARGER_TYPE_DEAD_BATTERY:
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached);
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);
break;
case MAX77843_MUIC_GND_MHL_VB:
case MAX77843_MUIC_GND_MHL:
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
+ extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);
break;
default:
dev_err(info->dev, "failed to detect %s accessory(gnd:0x%x)\n",
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
+ extcon_set_state_sync(info->edev, EXTCON_JIG, attached);
return 0;
}
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_USB, attached);
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
break;
case MAX77843_MUIC_CHG_DOWNSTREAM:
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP,
attached);
break;
case MAX77843_MUIC_CHG_DEDICATED:
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
attached);
break;
case MAX77843_MUIC_CHG_SPECIAL_500MA:
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW,
attached);
break;
case MAX77843_MUIC_CHG_SPECIAL_1A:
if (ret < 0)
return ret;
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST,
attached);
break;
case MAX77843_MUIC_CHG_GND:
/* Charger cable on MHL accessory is attach or detach */
if (gnd_type == MAX77843_MUIC_GND_MHL_VB)
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
true);
else if (gnd_type == MAX77843_MUIC_GND_MHL)
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
false);
break;
case MAX77843_MUIC_CHG_NONE:
switch (usb_type) {
case MAX8997_USB_HOST:
- extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, attached);
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);
break;
case MAX8997_USB_DEVICE:
- extcon_set_cable_state_(info->edev, EXTCON_USB, attached);
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_USB, attached);
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
break;
default:
switch (cable_type) {
case MAX8997_MUIC_ADC_AV_CABLE_NOLOAD:
case MAX8997_MUIC_ADC_FACTORY_MODE_UART_ON:
- extcon_set_cable_state_(info->edev, EXTCON_DOCK, attached);
+ extcon_set_state_sync(info->edev, EXTCON_DOCK, attached);
break;
default:
dev_err(info->dev, "failed to detect %s dock device\n",
return ret;
}
- extcon_set_cable_state_(info->edev, EXTCON_JIG, attached);
+ extcon_set_state_sync(info->edev, EXTCON_JIG, attached);
return 0;
}
return ret;
break;
case MAX8997_MUIC_ADC_MHL:
- extcon_set_cable_state_(info->edev, EXTCON_DISP_MHL, attached);
+ extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);
break;
case MAX8997_MUIC_ADC_FACTORY_MODE_USB_OFF:
case MAX8997_MUIC_ADC_FACTORY_MODE_USB_ON:
}
break;
case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_CDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_CDP,
attached);
break;
case MAX8997_CHARGER_TYPE_DEDICATED_CHG:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_DCP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
attached);
break;
case MAX8997_CHARGER_TYPE_500MA:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SLOW,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SLOW,
attached);
break;
case MAX8997_CHARGER_TYPE_1A:
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_FAST,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_FAST,
attached);
break;
default:
if (vbus_line_state & PALMAS_INT3_LINE_STATE_VBUS) {
if (palmas_usb->linkstat != PALMAS_USB_STATE_VBUS) {
palmas_usb->linkstat = PALMAS_USB_STATE_VBUS;
- extcon_set_cable_state_(edev, EXTCON_USB, true);
+ extcon_set_state_sync(edev, EXTCON_USB, true);
dev_info(palmas_usb->dev, "USB cable is attached\n");
} else {
dev_dbg(palmas_usb->dev,
} else if (!(vbus_line_state & PALMAS_INT3_LINE_STATE_VBUS)) {
if (palmas_usb->linkstat == PALMAS_USB_STATE_VBUS) {
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state_(edev, EXTCON_USB, false);
+ extcon_set_state_sync(edev, EXTCON_USB, false);
dev_info(palmas_usb->dev, "USB cable is detached\n");
} else {
dev_dbg(palmas_usb->dev,
PALMAS_USB_ID_INT_LATCH_CLR,
PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
- extcon_set_cable_state_(edev, EXTCON_USB_HOST, true);
+ extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
} else if ((set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) &&
(id_src & PALMAS_USB_ID_INT_SRC_ID_FLOAT)) {
PALMAS_USB_ID_INT_LATCH_CLR,
PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state_(edev, EXTCON_USB_HOST, false);
+ extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_ID) &&
(!(set & PALMAS_USB_ID_INT_SRC_ID_GND))) {
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
- extcon_set_cable_state_(edev, EXTCON_USB_HOST, false);
+ extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_DISCONNECT) &&
(id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
- extcon_set_cable_state_(edev, EXTCON_USB_HOST, true);
+ extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
}
id = gpiod_get_value_cansleep(palmas_usb->id_gpiod);
if (id) {
- extcon_set_cable_state_(edev, EXTCON_USB_HOST, false);
+ extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
} else {
- extcon_set_cable_state_(edev, EXTCON_USB_HOST, true);
+ extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
}
}
--- /dev/null
+/**
+ * extcon-qcom-spmi-misc.c - Qualcomm USB extcon driver to support USB ID
+ * detection based on extcon-usb-gpio.c.
+ *
+ * Copyright (C) 2016 Linaro, Ltd.
+ * Stephen Boyd <stephen.boyd@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/extcon.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#define USB_ID_DEBOUNCE_MS 5 /* ms */
+
+struct qcom_usb_extcon_info {
+ struct extcon_dev *edev;
+ int irq;
+ struct delayed_work wq_detcable;
+ unsigned long debounce_jiffies;
+};
+
+static const unsigned int qcom_usb_extcon_cable[] = {
+ EXTCON_USB_HOST,
+ EXTCON_NONE,
+};
+
+static void qcom_usb_extcon_detect_cable(struct work_struct *work)
+{
+ bool id;
+ int ret;
+ struct qcom_usb_extcon_info *info = container_of(to_delayed_work(work),
+ struct qcom_usb_extcon_info,
+ wq_detcable);
+
+ /* check ID and update cable state */
+ ret = irq_get_irqchip_state(info->irq, IRQCHIP_STATE_LINE_LEVEL, &id);
+ if (ret)
+ return;
+
+ extcon_set_state(info->edev, EXTCON_USB_HOST, !id);
+}
+
+static irqreturn_t qcom_usb_irq_handler(int irq, void *dev_id)
+{
+ struct qcom_usb_extcon_info *info = dev_id;
+
+ queue_delayed_work(system_power_efficient_wq, &info->wq_detcable,
+ info->debounce_jiffies);
+
+ return IRQ_HANDLED;
+}
+
+static int qcom_usb_extcon_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct qcom_usb_extcon_info *info;
+ int ret;
+
+ info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->edev = devm_extcon_dev_allocate(dev, qcom_usb_extcon_cable);
+ if (IS_ERR(info->edev)) {
+ dev_err(dev, "failed to allocate extcon device\n");
+ return -ENOMEM;
+ }
+
+ ret = devm_extcon_dev_register(dev, info->edev);
+ if (ret < 0) {
+ dev_err(dev, "failed to register extcon device\n");
+ return ret;
+ }
+
+ info->debounce_jiffies = msecs_to_jiffies(USB_ID_DEBOUNCE_MS);
+ INIT_DELAYED_WORK(&info->wq_detcable, qcom_usb_extcon_detect_cable);
+
+ info->irq = platform_get_irq_byname(pdev, "usb_id");
+ if (info->irq < 0)
+ return info->irq;
+
+ ret = devm_request_threaded_irq(dev, info->irq, NULL,
+ qcom_usb_irq_handler,
+ IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ pdev->name, info);
+ if (ret < 0) {
+ dev_err(dev, "failed to request handler for ID IRQ\n");
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, info);
+ device_init_wakeup(dev, 1);
+
+ /* Perform initial detection */
+ qcom_usb_extcon_detect_cable(&info->wq_detcable.work);
+
+ return 0;
+}
+
+static int qcom_usb_extcon_remove(struct platform_device *pdev)
+{
+ struct qcom_usb_extcon_info *info = platform_get_drvdata(pdev);
+
+ cancel_delayed_work_sync(&info->wq_detcable);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int qcom_usb_extcon_suspend(struct device *dev)
+{
+ struct qcom_usb_extcon_info *info = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (device_may_wakeup(dev))
+ ret = enable_irq_wake(info->irq);
+
+ return ret;
+}
+
+static int qcom_usb_extcon_resume(struct device *dev)
+{
+ struct qcom_usb_extcon_info *info = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (device_may_wakeup(dev))
+ ret = disable_irq_wake(info->irq);
+
+ return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(qcom_usb_extcon_pm_ops,
+ qcom_usb_extcon_suspend, qcom_usb_extcon_resume);
+
+static const struct of_device_id qcom_usb_extcon_dt_match[] = {
+ { .compatible = "qcom,pm8941-misc", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, qcom_usb_extcon_dt_match);
+
+static struct platform_driver qcom_usb_extcon_driver = {
+ .probe = qcom_usb_extcon_probe,
+ .remove = qcom_usb_extcon_remove,
+ .driver = {
+ .name = "extcon-pm8941-misc",
+ .pm = &qcom_usb_extcon_pm_ops,
+ .of_match_table = qcom_usb_extcon_dt_match,
+ },
+};
+module_platform_driver(qcom_usb_extcon_driver);
+
+MODULE_DESCRIPTION("QCOM USB ID extcon driver");
+MODULE_AUTHOR("Stephen Boyd <stephen.boyd@linaro.org>");
+MODULE_LICENSE("GPL v2");
return ret;
/* Change the state of external accessory */
- extcon_set_cable_state_(info->edev, id, attached);
+ extcon_set_state_sync(info->edev, id, attached);
if (id == EXTCON_USB)
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
return 0;
return ret;
/* Change the state of external accessory */
- extcon_set_cable_state_(info->edev, id, attached);
+ extcon_set_state_sync(info->edev, id, attached);
if (id == EXTCON_USB)
- extcon_set_cable_state_(info->edev, EXTCON_CHG_USB_SDP,
+ extcon_set_state_sync(info->edev, EXTCON_CHG_USB_SDP,
attached);
return 0;
* As we don't have event for USB peripheral cable attached,
* we simulate USB peripheral attach here.
*/
- extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, false);
- extcon_set_cable_state_(info->edev, EXTCON_USB, true);
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, false);
+ extcon_set_state_sync(info->edev, EXTCON_USB, true);
} else {
/*
* ID = 0 means USB HOST cable attached.
* As we don't have event for USB peripheral cable detached,
* we simulate USB peripheral detach here.
*/
- extcon_set_cable_state_(info->edev, EXTCON_USB, false);
- extcon_set_cable_state_(info->edev, EXTCON_USB_HOST, true);
+ extcon_set_state_sync(info->edev, EXTCON_USB, false);
+ extcon_set_state_sync(info->edev, EXTCON_USB_HOST, true);
}
}
#define SUPPORTED_CABLE_MAX 32
#define CABLE_NAME_MAX 30
-static const char *extcon_name[] = {
- [EXTCON_NONE] = "NONE",
+struct __extcon_info {
+ unsigned int type;
+ unsigned int id;
+ const char *name;
+
+} extcon_info[] = {
+ [EXTCON_NONE] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_NONE,
+ .name = "NONE",
+ },
/* USB external connector */
- [EXTCON_USB] = "USB",
- [EXTCON_USB_HOST] = "USB-HOST",
+ [EXTCON_USB] = {
+ .type = EXTCON_TYPE_USB,
+ .id = EXTCON_USB,
+ .name = "USB",
+ },
+ [EXTCON_USB_HOST] = {
+ .type = EXTCON_TYPE_USB,
+ .id = EXTCON_USB_HOST,
+ .name = "USB_HOST",
+ },
/* Charging external connector */
- [EXTCON_CHG_USB_SDP] = "SDP",
- [EXTCON_CHG_USB_DCP] = "DCP",
- [EXTCON_CHG_USB_CDP] = "CDP",
- [EXTCON_CHG_USB_ACA] = "ACA",
- [EXTCON_CHG_USB_FAST] = "FAST-CHARGER",
- [EXTCON_CHG_USB_SLOW] = "SLOW-CHARGER",
+ [EXTCON_CHG_USB_SDP] = {
+ .type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
+ .id = EXTCON_CHG_USB_SDP,
+ .name = "SDP",
+ },
+ [EXTCON_CHG_USB_DCP] = {
+ .type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
+ .id = EXTCON_CHG_USB_DCP,
+ .name = "DCP",
+ },
+ [EXTCON_CHG_USB_CDP] = {
+ .type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
+ .id = EXTCON_CHG_USB_CDP,
+ .name = "CDP",
+ },
+ [EXTCON_CHG_USB_ACA] = {
+ .type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
+ .id = EXTCON_CHG_USB_ACA,
+ .name = "ACA",
+ },
+ [EXTCON_CHG_USB_FAST] = {
+ .type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
+ .id = EXTCON_CHG_USB_FAST,
+ .name = "FAST-CHARGER",
+ },
+ [EXTCON_CHG_USB_SLOW] = {
+ .type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
+ .id = EXTCON_CHG_USB_SLOW,
+ .name = "SLOW-CHARGER",
+ },
+ [EXTCON_CHG_WPT] = {
+ .type = EXTCON_TYPE_CHG,
+ .id = EXTCON_CHG_WPT,
+ .name = "WPT",
+ },
/* Jack external connector */
- [EXTCON_JACK_MICROPHONE] = "MICROPHONE",
- [EXTCON_JACK_HEADPHONE] = "HEADPHONE",
- [EXTCON_JACK_LINE_IN] = "LINE-IN",
- [EXTCON_JACK_LINE_OUT] = "LINE-OUT",
- [EXTCON_JACK_VIDEO_IN] = "VIDEO-IN",
- [EXTCON_JACK_VIDEO_OUT] = "VIDEO-OUT",
- [EXTCON_JACK_SPDIF_IN] = "SPDIF-IN",
- [EXTCON_JACK_SPDIF_OUT] = "SPDIF-OUT",
+ [EXTCON_JACK_MICROPHONE] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_MICROPHONE,
+ .name = "MICROPHONE",
+ },
+ [EXTCON_JACK_HEADPHONE] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_HEADPHONE,
+ .name = "HEADPHONE",
+ },
+ [EXTCON_JACK_LINE_IN] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_LINE_IN,
+ .name = "LINE-IN",
+ },
+ [EXTCON_JACK_LINE_OUT] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_LINE_OUT,
+ .name = "LINE-OUT",
+ },
+ [EXTCON_JACK_VIDEO_IN] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_VIDEO_IN,
+ .name = "VIDEO-IN",
+ },
+ [EXTCON_JACK_VIDEO_OUT] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_VIDEO_OUT,
+ .name = "VIDEO-OUT",
+ },
+ [EXTCON_JACK_SPDIF_IN] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_SPDIF_IN,
+ .name = "SPDIF-IN",
+ },
+ [EXTCON_JACK_SPDIF_OUT] = {
+ .type = EXTCON_TYPE_JACK,
+ .id = EXTCON_JACK_SPDIF_OUT,
+ .name = "SPDIF-OUT",
+ },
/* Display external connector */
- [EXTCON_DISP_HDMI] = "HDMI",
- [EXTCON_DISP_MHL] = "MHL",
- [EXTCON_DISP_DVI] = "DVI",
- [EXTCON_DISP_VGA] = "VGA",
+ [EXTCON_DISP_HDMI] = {
+ .type = EXTCON_TYPE_DISP,
+ .id = EXTCON_DISP_HDMI,
+ .name = "HDMI",
+ },
+ [EXTCON_DISP_MHL] = {
+ .type = EXTCON_TYPE_DISP,
+ .id = EXTCON_DISP_MHL,
+ .name = "MHL",
+ },
+ [EXTCON_DISP_DVI] = {
+ .type = EXTCON_TYPE_DISP,
+ .id = EXTCON_DISP_DVI,
+ .name = "DVI",
+ },
+ [EXTCON_DISP_VGA] = {
+ .type = EXTCON_TYPE_DISP,
+ .id = EXTCON_DISP_VGA,
+ .name = "VGA",
+ },
+ [EXTCON_DISP_DP] = {
+ .type = EXTCON_TYPE_DISP | EXTCON_TYPE_USB,
+ .id = EXTCON_DISP_DP,
+ .name = "DP",
+ },
+ [EXTCON_DISP_HMD] = {
+ .type = EXTCON_TYPE_DISP | EXTCON_TYPE_USB,
+ .id = EXTCON_DISP_HMD,
+ .name = "HMD",
+ },
/* Miscellaneous external connector */
- [EXTCON_DOCK] = "DOCK",
- [EXTCON_JIG] = "JIG",
- [EXTCON_MECHANICAL] = "MECHANICAL",
-
- NULL,
+ [EXTCON_DOCK] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_DOCK,
+ .name = "DOCK",
+ },
+ [EXTCON_JIG] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_JIG,
+ .name = "JIG",
+ },
+ [EXTCON_MECHANICAL] = {
+ .type = EXTCON_TYPE_MISC,
+ .id = EXTCON_MECHANICAL,
+ .name = "MECHANICAL",
+ },
+
+ { /* sentinel */ }
};
/**
struct device_attribute attr_state;
struct attribute *attrs[3]; /* to be fed to attr_g.attrs */
+
+ union extcon_property_value usb_propval[EXTCON_PROP_USB_CNT];
+ union extcon_property_value chg_propval[EXTCON_PROP_CHG_CNT];
+ union extcon_property_value jack_propval[EXTCON_PROP_JACK_CNT];
+ union extcon_property_value disp_propval[EXTCON_PROP_DISP_CNT];
+
+ unsigned long usb_bits[BITS_TO_LONGS(EXTCON_PROP_USB_CNT)];
+ unsigned long chg_bits[BITS_TO_LONGS(EXTCON_PROP_CHG_CNT)];
+ unsigned long jack_bits[BITS_TO_LONGS(EXTCON_PROP_JACK_CNT)];
+ unsigned long disp_bits[BITS_TO_LONGS(EXTCON_PROP_DISP_CNT)];
};
static struct class *extcon_class;
return -EINVAL;
}
-static bool is_extcon_changed(u32 prev, u32 new, int idx, bool *attached)
+static int get_extcon_type(unsigned int prop)
{
- if (((prev >> idx) & 0x1) != ((new >> idx) & 0x1)) {
- *attached = ((new >> idx) & 0x1) ? true : false;
- return true;
+ switch (prop) {
+ case EXTCON_PROP_USB_MIN ... EXTCON_PROP_USB_MAX:
+ return EXTCON_TYPE_USB;
+ case EXTCON_PROP_CHG_MIN ... EXTCON_PROP_CHG_MAX:
+ return EXTCON_TYPE_CHG;
+ case EXTCON_PROP_JACK_MIN ... EXTCON_PROP_JACK_MAX:
+ return EXTCON_TYPE_JACK;
+ case EXTCON_PROP_DISP_MIN ... EXTCON_PROP_DISP_MAX:
+ return EXTCON_TYPE_DISP;
+ default:
+ return -EINVAL;
}
+}
+
+static bool is_extcon_attached(struct extcon_dev *edev, unsigned int index)
+{
+ return !!(edev->state & BIT(index));
+}
+
+static bool is_extcon_changed(struct extcon_dev *edev, int index,
+ bool new_state)
+{
+ int state = !!(edev->state & BIT(index));
+ return (state != new_state);
+}
+
+static bool is_extcon_property_supported(unsigned int id, unsigned int prop)
+{
+ int type;
+
+ /* Check whether the property is supported or not. */
+ type = get_extcon_type(prop);
+ if (type < 0)
+ return false;
- return false;
+ /* Check whether a specific extcon id supports the property or not. */
+ return !!(extcon_info[id].type & type);
+}
+
+static int is_extcon_property_capability(struct extcon_dev *edev,
+ unsigned int id, int index,unsigned int prop)
+{
+ struct extcon_cable *cable;
+ int type, ret;
+
+ /* Check whether the property is supported or not. */
+ type = get_extcon_type(prop);
+ if (type < 0)
+ return type;
+
+ cable = &edev->cables[index];
+
+ switch (type) {
+ case EXTCON_TYPE_USB:
+ ret = test_bit(prop - EXTCON_PROP_USB_MIN, cable->usb_bits);
+ break;
+ case EXTCON_TYPE_CHG:
+ ret = test_bit(prop - EXTCON_PROP_CHG_MIN, cable->chg_bits);
+ break;
+ case EXTCON_TYPE_JACK:
+ ret = test_bit(prop - EXTCON_PROP_JACK_MIN, cable->jack_bits);
+ break;
+ case EXTCON_TYPE_DISP:
+ ret = test_bit(prop - EXTCON_PROP_DISP_MIN, cable->disp_bits);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static void init_property(struct extcon_dev *edev, unsigned int id, int index)
+{
+ unsigned int type = extcon_info[id].type;
+ struct extcon_cable *cable = &edev->cables[index];
+
+ if (EXTCON_TYPE_USB & type)
+ memset(cable->usb_propval, 0, sizeof(cable->usb_propval));
+ if (EXTCON_TYPE_CHG & type)
+ memset(cable->chg_propval, 0, sizeof(cable->chg_propval));
+ if (EXTCON_TYPE_JACK & type)
+ memset(cable->jack_propval, 0, sizeof(cable->jack_propval));
+ if (EXTCON_TYPE_DISP & type)
+ memset(cable->disp_propval, 0, sizeof(cable->disp_propval));
}
static ssize_t state_show(struct device *dev, struct device_attribute *attr,
for (i = 0; i < edev->max_supported; i++) {
count += sprintf(buf + count, "%s=%d\n",
- extcon_name[edev->supported_cable[i]],
+ extcon_info[edev->supported_cable[i]].name,
!!(edev->state & (1 << i)));
}
return count;
}
-
-static ssize_t state_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- u32 state;
- ssize_t ret = 0;
- struct extcon_dev *edev = dev_get_drvdata(dev);
-
- ret = sscanf(buf, "0x%x", &state);
- if (ret == 0)
- ret = -EINVAL;
- else
- ret = extcon_set_state(edev, state);
-
- if (ret < 0)
- return ret;
-
- return count;
-}
-static DEVICE_ATTR_RW(state);
+static DEVICE_ATTR_RO(state);
static ssize_t name_show(struct device *dev, struct device_attribute *attr,
char *buf)
int i = cable->cable_index;
return sprintf(buf, "%s\n",
- extcon_name[cable->edev->supported_cable[i]]);
+ extcon_info[cable->edev->supported_cable[i]].name);
}
static ssize_t cable_state_show(struct device *dev,
int i = cable->cable_index;
return sprintf(buf, "%d\n",
- extcon_get_cable_state_(cable->edev,
- cable->edev->supported_cable[i]));
+ extcon_get_state(cable->edev, cable->edev->supported_cable[i]));
}
/**
- * extcon_update_state() - Update the cable attach states of the extcon device
- * only for the masked bits.
- * @edev: the extcon device
- * @mask: the bit mask to designate updated bits.
- * @state: new cable attach status for @edev
- *
- * Changing the state sends uevent with environment variable containing
- * the name of extcon device (envp[0]) and the state output (envp[1]).
- * Tizen uses this format for extcon device to get events from ports.
- * Android uses this format as well.
+ * extcon_sync() - Synchronize the states for both the attached/detached
+ * @edev: the extcon device that has the cable.
*
- * Note that the notifier provides which bits are changed in the state
- * variable with the val parameter (second) to the callback.
+ * This function send a notification to synchronize the all states of a
+ * specific external connector
*/
-int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
+int extcon_sync(struct extcon_dev *edev, unsigned int id)
{
char name_buf[120];
char state_buf[120];
int env_offset = 0;
int length;
int index;
+ int state;
unsigned long flags;
- bool attached;
if (!edev)
return -EINVAL;
- spin_lock_irqsave(&edev->lock, flags);
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
- if (edev->state != ((edev->state & ~mask) | (state & mask))) {
- u32 old_state;
+ spin_lock_irqsave(&edev->lock, flags);
- if (check_mutually_exclusive(edev, (edev->state & ~mask) |
- (state & mask))) {
- spin_unlock_irqrestore(&edev->lock, flags);
- return -EPERM;
- }
+ state = !!(edev->state & BIT(index));
+ raw_notifier_call_chain(&edev->nh[index], state, edev);
- old_state = edev->state;
- edev->state &= ~mask;
- edev->state |= state & mask;
+ /* This could be in interrupt handler */
+ prop_buf = (char *)get_zeroed_page(GFP_ATOMIC);
+ if (!prop_buf) {
+ /* Unlock early before uevent */
+ spin_unlock_irqrestore(&edev->lock, flags);
- for (index = 0; index < edev->max_supported; index++) {
- if (is_extcon_changed(old_state, edev->state, index,
- &attached))
- raw_notifier_call_chain(&edev->nh[index],
- attached, edev);
- }
+ dev_err(&edev->dev, "out of memory in extcon_set_state\n");
+ kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);
- /* This could be in interrupt handler */
- prop_buf = (char *)get_zeroed_page(GFP_ATOMIC);
- if (prop_buf) {
- length = name_show(&edev->dev, NULL, prop_buf);
- if (length > 0) {
- if (prop_buf[length - 1] == '\n')
- prop_buf[length - 1] = 0;
- snprintf(name_buf, sizeof(name_buf),
- "NAME=%s", prop_buf);
- envp[env_offset++] = name_buf;
- }
- length = state_show(&edev->dev, NULL, prop_buf);
- if (length > 0) {
- if (prop_buf[length - 1] == '\n')
- prop_buf[length - 1] = 0;
- snprintf(state_buf, sizeof(state_buf),
- "STATE=%s", prop_buf);
- envp[env_offset++] = state_buf;
- }
- envp[env_offset] = NULL;
- /* Unlock early before uevent */
- spin_unlock_irqrestore(&edev->lock, flags);
+ return 0;
+ }
- kobject_uevent_env(&edev->dev.kobj, KOBJ_CHANGE, envp);
- free_page((unsigned long)prop_buf);
- } else {
- /* Unlock early before uevent */
- spin_unlock_irqrestore(&edev->lock, flags);
+ length = name_show(&edev->dev, NULL, prop_buf);
+ if (length > 0) {
+ if (prop_buf[length - 1] == '\n')
+ prop_buf[length - 1] = 0;
+ snprintf(name_buf, sizeof(name_buf), "NAME=%s", prop_buf);
+ envp[env_offset++] = name_buf;
+ }
- dev_err(&edev->dev, "out of memory in extcon_set_state\n");
- kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);
- }
- } else {
- /* No changes */
- spin_unlock_irqrestore(&edev->lock, flags);
+ length = state_show(&edev->dev, NULL, prop_buf);
+ if (length > 0) {
+ if (prop_buf[length - 1] == '\n')
+ prop_buf[length - 1] = 0;
+ snprintf(state_buf, sizeof(state_buf), "STATE=%s", prop_buf);
+ envp[env_offset++] = state_buf;
}
+ envp[env_offset] = NULL;
+
+ /* Unlock early before uevent */
+ spin_unlock_irqrestore(&edev->lock, flags);
+ kobject_uevent_env(&edev->dev.kobj, KOBJ_CHANGE, envp);
+ free_page((unsigned long)prop_buf);
return 0;
}
-EXPORT_SYMBOL_GPL(extcon_update_state);
+EXPORT_SYMBOL_GPL(extcon_sync);
/**
- * extcon_set_state() - Set the cable attach states of the extcon device.
- * @edev: the extcon device
- * @state: new cable attach status for @edev
- *
- * Note that notifier provides which bits are changed in the state
- * variable with the val parameter (second) to the callback.
+ * extcon_get_state() - Get the state of a external connector.
+ * @edev: the extcon device that has the cable.
+ * @id: the unique id of each external connector in extcon enumeration.
*/
-int extcon_set_state(struct extcon_dev *edev, u32 state)
+int extcon_get_state(struct extcon_dev *edev, const unsigned int id)
{
+ int index, state;
+ unsigned long flags;
+
if (!edev)
return -EINVAL;
- return extcon_update_state(edev, 0xffffffff, state);
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ spin_lock_irqsave(&edev->lock, flags);
+ state = is_extcon_attached(edev, index);
+ spin_unlock_irqrestore(&edev->lock, flags);
+
+ return state;
}
-EXPORT_SYMBOL_GPL(extcon_set_state);
+EXPORT_SYMBOL_GPL(extcon_get_state);
/**
- * extcon_get_cable_state_() - Get the status of a specific cable.
- * @edev: the extcon device that has the cable.
- * @id: the unique id of each external connector in extcon enumeration.
+ * extcon_set_state() - Set the state of a external connector.
+ * without a notification.
+ * @edev: the extcon device that has the cable.
+ * @id: the unique id of each external connector
+ * in extcon enumeration.
+ * @state: the new cable status. The default semantics is
+ * true: attached / false: detached.
+ *
+ * This function only set the state of a external connector without
+ * a notification. To synchronize the data of a external connector,
+ * use extcon_set_state_sync() and extcon_sync().
*/
-int extcon_get_cable_state_(struct extcon_dev *edev, const unsigned int id)
+int extcon_set_state(struct extcon_dev *edev, unsigned int id,
+ bool cable_state)
{
- int index;
+ unsigned long flags;
+ int index, ret = 0;
if (!edev)
return -EINVAL;
if (index < 0)
return index;
- if (edev->max_supported && edev->max_supported <= index)
- return -EINVAL;
+ spin_lock_irqsave(&edev->lock, flags);
+
+ /* Check whether the external connector's state is changed. */
+ if (!is_extcon_changed(edev, index, cable_state))
+ goto out;
+
+ if (check_mutually_exclusive(edev,
+ (edev->state & ~BIT(index)) | (cable_state & BIT(index)))) {
+ ret = -EPERM;
+ goto out;
+ }
+
+ /*
+ * Initialize the value of extcon property before setting
+ * the detached state for an external connector.
+ */
+ if (!cable_state)
+ init_property(edev, id, index);
+
+ /* Update the state for a external connector. */
+ if (cable_state)
+ edev->state |= BIT(index);
+ else
+ edev->state &= ~(BIT(index));
+out:
+ spin_unlock_irqrestore(&edev->lock, flags);
- return !!(edev->state & (1 << index));
+ return ret;
}
-EXPORT_SYMBOL_GPL(extcon_get_cable_state_);
+EXPORT_SYMBOL_GPL(extcon_set_state);
/**
- * extcon_set_cable_state_() - Set the status of a specific cable.
+ * extcon_set_state_sync() - Set the state of a external connector
+ * with a notification.
* @edev: the extcon device that has the cable.
* @id: the unique id of each external connector
* in extcon enumeration.
* @state: the new cable status. The default semantics is
* true: attached / false: detached.
+ *
+ * This function set the state of external connector and synchronize the data
+ * by usning a notification.
*/
-int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
+int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
bool cable_state)
{
- u32 state;
+ int ret, index;
+ unsigned long flags;
+
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ /* Check whether the external connector's state is changed. */
+ spin_lock_irqsave(&edev->lock, flags);
+ ret = is_extcon_changed(edev, index, cable_state);
+ spin_unlock_irqrestore(&edev->lock, flags);
+ if (!ret)
+ return 0;
+
+ ret = extcon_set_state(edev, id, cable_state);
+ if (ret < 0)
+ return ret;
+
+ return extcon_sync(edev, id);
+}
+EXPORT_SYMBOL_GPL(extcon_set_state_sync);
+
+/**
+ * extcon_get_property() - Get the property value of a specific cable.
+ * @edev: the extcon device that has the cable.
+ * @id: the unique id of each external connector
+ * in extcon enumeration.
+ * @prop: the property id among enum extcon_property.
+ * @prop_val: the pointer which store the value of property.
+ *
+ * When getting the property value of external connector, the external connector
+ * should be attached. If detached state, function just return 0 without
+ * property value. Also, the each property should be included in the list of
+ * supported properties according to the type of external connectors.
+ *
+ * Returns 0 if success or error number if fail
+ */
+int extcon_get_property(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value *prop_val)
+{
+ struct extcon_cable *cable;
+ unsigned long flags;
+ int index, ret = 0;
+
+ *prop_val = (union extcon_property_value)(0);
+
+ if (!edev)
+ return -EINVAL;
+
+ /* Check whether the property is supported or not */
+ if (!is_extcon_property_supported(id, prop))
+ return -EINVAL;
+
+ /* Find the cable index of external connector by using id */
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ spin_lock_irqsave(&edev->lock, flags);
+
+ /* Check whether the property is available or not. */
+ if (!is_extcon_property_capability(edev, id, index, prop)) {
+ spin_unlock_irqrestore(&edev->lock, flags);
+ return -EPERM;
+ }
+
+ /*
+ * Check whether the external connector is attached.
+ * If external connector is detached, the user can not
+ * get the property value.
+ */
+ if (!is_extcon_attached(edev, index)) {
+ spin_unlock_irqrestore(&edev->lock, flags);
+ return 0;
+ }
+
+ cable = &edev->cables[index];
+
+ /* Get the property value according to extcon type */
+ switch (prop) {
+ case EXTCON_PROP_USB_MIN ... EXTCON_PROP_USB_MAX:
+ *prop_val = cable->usb_propval[prop - EXTCON_PROP_USB_MIN];
+ break;
+ case EXTCON_PROP_CHG_MIN ... EXTCON_PROP_CHG_MAX:
+ *prop_val = cable->chg_propval[prop - EXTCON_PROP_CHG_MIN];
+ break;
+ case EXTCON_PROP_JACK_MIN ... EXTCON_PROP_JACK_MAX:
+ *prop_val = cable->jack_propval[prop - EXTCON_PROP_JACK_MIN];
+ break;
+ case EXTCON_PROP_DISP_MIN ... EXTCON_PROP_DISP_MAX:
+ *prop_val = cable->disp_propval[prop - EXTCON_PROP_DISP_MIN];
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ spin_unlock_irqrestore(&edev->lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(extcon_get_property);
+
+/**
+ * extcon_set_property() - Set the property value of a specific cable.
+ * @edev: the extcon device that has the cable.
+ * @id: the unique id of each external connector
+ * in extcon enumeration.
+ * @prop: the property id among enum extcon_property.
+ * @prop_val: the pointer including the new value of property.
+ *
+ * The each property should be included in the list of supported properties
+ * according to the type of external connectors.
+ *
+ * Returns 0 if success or error number if fail
+ */
+int extcon_set_property(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value prop_val)
+{
+ struct extcon_cable *cable;
+ unsigned long flags;
+ int index, ret = 0;
+
+ if (!edev)
+ return -EINVAL;
+
+ /* Check whether the property is supported or not */
+ if (!is_extcon_property_supported(id, prop))
+ return -EINVAL;
+
+ /* Find the cable index of external connector by using id */
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ spin_lock_irqsave(&edev->lock, flags);
+
+ /* Check whether the property is available or not. */
+ if (!is_extcon_property_capability(edev, id, index, prop)) {
+ spin_unlock_irqrestore(&edev->lock, flags);
+ return -EPERM;
+ }
+
+ cable = &edev->cables[index];
+
+ /* Set the property value according to extcon type */
+ switch (prop) {
+ case EXTCON_PROP_USB_MIN ... EXTCON_PROP_USB_MAX:
+ cable->usb_propval[prop - EXTCON_PROP_USB_MIN] = prop_val;
+ break;
+ case EXTCON_PROP_CHG_MIN ... EXTCON_PROP_CHG_MAX:
+ cable->chg_propval[prop - EXTCON_PROP_CHG_MIN] = prop_val;
+ break;
+ case EXTCON_PROP_JACK_MIN ... EXTCON_PROP_JACK_MAX:
+ cable->jack_propval[prop - EXTCON_PROP_JACK_MIN] = prop_val;
+ break;
+ case EXTCON_PROP_DISP_MIN ... EXTCON_PROP_DISP_MAX:
+ cable->disp_propval[prop - EXTCON_PROP_DISP_MIN] = prop_val;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ spin_unlock_irqrestore(&edev->lock, flags);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(extcon_set_property);
+
+/**
+ * extcon_set_property_sync() - Set the property value of a specific cable
+ with a notification.
+ * @prop_val: the pointer including the new value of property.
+ *
+ * When setting the property value of external connector, the external connector
+ * should be attached. The each property should be included in the list of
+ * supported properties according to the type of external connectors.
+ *
+ * Returns 0 if success or error number if fail
+ */
+int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value prop_val)
+{
+ int ret;
+
+ ret = extcon_set_property(edev, id, prop, prop_val);
+ if (ret < 0)
+ return ret;
+
+ return extcon_sync(edev, id);
+}
+EXPORT_SYMBOL_GPL(extcon_set_property_sync);
+
+/**
+ * extcon_get_property_capability() - Get the capability of property
+ * of an external connector.
+ * @edev: the extcon device that has the cable.
+ * @id: the unique id of each external connector
+ * in extcon enumeration.
+ * @prop: the property id among enum extcon_property.
+ *
+ * Returns 1 if the property is available or 0 if not available.
+ */
+int extcon_get_property_capability(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop)
+{
int index;
if (!edev)
return -EINVAL;
+ /* Check whether the property is supported or not */
+ if (!is_extcon_property_supported(id, prop))
+ return -EINVAL;
+
+ /* Find the cable index of external connector by using id */
index = find_cable_index_by_id(edev, id);
if (index < 0)
return index;
- if (edev->max_supported && edev->max_supported <= index)
+ return is_extcon_property_capability(edev, id, index, prop);
+}
+EXPORT_SYMBOL_GPL(extcon_get_property_capability);
+
+/**
+ * extcon_set_property_capability() - Set the capability of a property
+ * of an external connector.
+ * @edev: the extcon device that has the cable.
+ * @id: the unique id of each external connector
+ * in extcon enumeration.
+ * @prop: the property id among enum extcon_property.
+ *
+ * This function set the capability of a property for an external connector
+ * to mark the bit in capability bitmap which mean the available state of
+ * a property.
+ *
+ * Returns 0 if success or error number if fail
+ */
+int extcon_set_property_capability(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop)
+{
+ struct extcon_cable *cable;
+ int index, type, ret = 0;
+
+ if (!edev)
return -EINVAL;
- state = cable_state ? (1 << index) : 0;
- return extcon_update_state(edev, 1 << index, state);
+ /* Check whether the property is supported or not. */
+ if (!is_extcon_property_supported(id, prop))
+ return -EINVAL;
+
+ /* Find the cable index of external connector by using id. */
+ index = find_cable_index_by_id(edev, id);
+ if (index < 0)
+ return index;
+
+ type = get_extcon_type(prop);
+ if (type < 0)
+ return type;
+
+ cable = &edev->cables[index];
+
+ switch (type) {
+ case EXTCON_TYPE_USB:
+ __set_bit(prop - EXTCON_PROP_USB_MIN, cable->usb_bits);
+ break;
+ case EXTCON_TYPE_CHG:
+ __set_bit(prop - EXTCON_PROP_CHG_MIN, cable->chg_bits);
+ break;
+ case EXTCON_TYPE_JACK:
+ __set_bit(prop - EXTCON_PROP_JACK_MIN, cable->jack_bits);
+ break;
+ case EXTCON_TYPE_DISP:
+ __set_bit(prop - EXTCON_PROP_DISP_MIN, cable->disp_bits);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
}
-EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
+EXPORT_SYMBOL_GPL(extcon_set_property_capability);
/**
* extcon_get_extcon_dev() - Get the extcon device instance from the name
struct notifier_block *nb)
{
unsigned long flags;
- int ret, idx;
+ int ret, idx = -EINVAL;
if (!nb)
return -EINVAL;
return ERR_PTR(-EINVAL);
if (!dev->of_node) {
- dev_err(dev, "device does not have a device node entry\n");
+ dev_dbg(dev, "device does not have a device node entry\n");
return ERR_PTR(-EINVAL);
}
node = of_parse_phandle(dev->of_node, "extcon", index);
if (!node) {
- dev_err(dev, "failed to get phandle in %s node\n",
+ dev_dbg(dev, "failed to get phandle in %s node\n",
dev->of_node->full_name);
return ERR_PTR(-ENODEV);
}
#include <linux/device.h>
+/*
+ * Define the type of supported external connectors
+ */
+#define EXTCON_TYPE_USB BIT(0) /* USB connector */
+#define EXTCON_TYPE_CHG BIT(1) /* Charger connector */
+#define EXTCON_TYPE_JACK BIT(2) /* Jack connector */
+#define EXTCON_TYPE_DISP BIT(3) /* Display connector */
+#define EXTCON_TYPE_MISC BIT(4) /* Miscellaneous connector */
+
/*
* Define the unique id of supported external connectors
*/
#define EXTCON_CHG_USB_ACA 8 /* Accessory Charger Adapter */
#define EXTCON_CHG_USB_FAST 9
#define EXTCON_CHG_USB_SLOW 10
+#define EXTCON_CHG_WPT 11 /* Wireless Power Transfer */
/* Jack external connector */
#define EXTCON_JACK_MICROPHONE 20
#define EXTCON_DISP_MHL 41 /* Mobile High-Definition Link */
#define EXTCON_DISP_DVI 42 /* Digital Visual Interface */
#define EXTCON_DISP_VGA 43 /* Video Graphics Array */
+#define EXTCON_DISP_DP 44 /* Display Port */
+#define EXTCON_DISP_HMD 45 /* Head-Mounted Display */
/* Miscellaneous external connector */
#define EXTCON_DOCK 60
#define EXTCON_NUM 63
+/*
+ * Define the property of supported external connectors.
+ *
+ * When adding the new extcon property, they *must* have
+ * the type/value/default information. Also, you *have to*
+ * modify the EXTCON_PROP_[type]_START/END definitions
+ * which mean the range of the supported properties
+ * for each extcon type.
+ *
+ * The naming style of property
+ * : EXTCON_PROP_[type]_[property name]
+ *
+ * EXTCON_PROP_USB_[property name] : USB property
+ * EXTCON_PROP_CHG_[property name] : Charger property
+ * EXTCON_PROP_JACK_[property name] : Jack property
+ * EXTCON_PROP_DISP_[property name] : Display property
+ */
+
+/*
+ * Properties of EXTCON_TYPE_USB.
+ *
+ * - EXTCON_PROP_USB_VBUS
+ * @type: integer (intval)
+ * @value: 0 (low) or 1 (high)
+ * @default: 0 (low)
+ * - EXTCON_PROP_USB_TYPEC_POLARITY
+ * @type: integer (intval)
+ * @value: 0 (normal) or 1 (flip)
+ * @default: 0 (normal)
+ * - EXTCON_PROP_USB_SS (SuperSpeed)
+ * @type: integer (intval)
+ * @value: 0 (USB/USB2) or 1 (USB3)
+ * @default: 0 (USB/USB2)
+ *
+ */
+#define EXTCON_PROP_USB_VBUS 0
+#define EXTCON_PROP_USB_TYPEC_POLARITY 1
+#define EXTCON_PROP_USB_SS 2
+
+#define EXTCON_PROP_USB_MIN 0
+#define EXTCON_PROP_USB_MAX 2
+#define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
+
+/* Properties of EXTCON_TYPE_CHG. */
+#define EXTCON_PROP_CHG_MIN 50
+#define EXTCON_PROP_CHG_MAX 50
+#define EXTCON_PROP_CHG_CNT (EXTCON_PROP_CHG_MAX - EXTCON_PROP_CHG_MIN + 1)
+
+/* Properties of EXTCON_TYPE_JACK. */
+#define EXTCON_PROP_JACK_MIN 100
+#define EXTCON_PROP_JACK_MAX 100
+#define EXTCON_PROP_JACK_CNT (EXTCON_PROP_JACK_MAX - EXTCON_PROP_JACK_MIN + 1)
+
+/*
+ * Properties of EXTCON_TYPE_DISP.
+ *
+ * - EXTCON_PROP_DISP_HPD (Hot Plug Detect)
+ * @type: integer (intval)
+ * @value: 0 (no hpd) or 1 (hpd)
+ * @default: 0 (no hpd)
+ *
+ */
+#define EXTCON_PROP_DISP_HPD 150
+
+/* Properties of EXTCON_TYPE_DISP. */
+#define EXTCON_PROP_DISP_MIN 150
+#define EXTCON_PROP_DISP_MAX 151
+#define EXTCON_PROP_DISP_CNT (EXTCON_PROP_DISP_MAX - EXTCON_PROP_DISP_MIN + 1)
+
+/*
+ * Define the type of property's value.
+ *
+ * Define the property's value as union type. Because each property
+ * would need the different data type to store it.
+ */
+union extcon_property_value {
+ int intval; /* type : integer (intval) */
+};
+
struct extcon_cable;
/**
extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);
/*
- * get/set/update_state access the 32b encoded state value, which represents
- * states of all possible cables of the multistate port. For example, if one
- * calls extcon_set_state(edev, 0x7), it may mean that all the three cables
- * are attached to the port.
+ * get/set_state access each bit of the 32b encoded state value.
+ * They are used to access the status of each cable based on the cable id.
*/
-static inline u32 extcon_get_state(struct extcon_dev *edev)
-{
- return edev->state;
-}
+extern int extcon_get_state(struct extcon_dev *edev, unsigned int id);
+extern int extcon_set_state(struct extcon_dev *edev, unsigned int id,
+ bool cable_state);
+extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
+ bool cable_state);
-extern int extcon_set_state(struct extcon_dev *edev, u32 state);
-extern int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state);
+/*
+ * Synchronize the state and property data for a specific external connector.
+ */
+extern int extcon_sync(struct extcon_dev *edev, unsigned int id);
/*
- * get/set_cable_state access each bit of the 32b encoded state value.
- * They are used to access the status of each cable based on the cable id.
+ * get/set_property access the property value of each external connector.
+ * They are used to access the property of each cable based on the property id.
*/
-extern int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id);
-extern int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
- bool cable_state);
+extern int extcon_get_property(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value *prop_val);
+extern int extcon_set_property(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value prop_val);
+extern int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value prop_val);
+
+/*
+ * get/set_property_capability set the capability of the property for each
+ * external connector. They are used to set the capability of the property
+ * of each external connector based on the id and property.
+ */
+extern int extcon_get_property_capability(struct extcon_dev *edev,
+ unsigned int id, unsigned int prop);
+extern int extcon_set_property_capability(struct extcon_dev *edev,
+ unsigned int id, unsigned int prop);
/*
* Following APIs are to monitor every action of a notifier.
static inline void devm_extcon_dev_free(struct extcon_dev *edev) { }
-static inline u32 extcon_get_state(struct extcon_dev *edev)
+
+static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
+{
+ return 0;
+}
+
+static inline int extcon_set_state(struct extcon_dev *edev, unsigned int id,
+ bool cable_state)
+{
+ return 0;
+}
+
+static inline int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
+ bool cable_state)
{
return 0;
}
-static inline int extcon_set_state(struct extcon_dev *edev, u32 state)
+static inline int extcon_sync(struct extcon_dev *edev, unsigned int id)
{
return 0;
}
-static inline int extcon_update_state(struct extcon_dev *edev, u32 mask,
- u32 state)
+static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value *prop_val)
+{
+ return 0;
+}
+static inline int extcon_set_property(struct extcon_dev *edev, unsigned int id,
+ unsigned int prop,
+ union extcon_property_value prop_val)
{
return 0;
}
-static inline int extcon_get_cable_state_(struct extcon_dev *edev,
- unsigned int id)
+static inline int extcon_set_property_sync(struct extcon_dev *edev,
+ unsigned int id, unsigned int prop,
+ union extcon_property_value prop_val)
{
return 0;
}
-static inline int extcon_set_cable_state_(struct extcon_dev *edev,
- unsigned int id, bool cable_state)
+static inline int extcon_get_property_capability(struct extcon_dev *edev,
+ unsigned int id, unsigned int prop)
+{
+ return 0;
+}
+
+static inline int extcon_set_property_capability(struct extcon_dev *edev,
+ unsigned int id, unsigned int prop)
{
return 0;
}
{
return -EINVAL;
}
+
+static inline int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id)
+{
+ return extcon_get_state(edev, id);
+}
+
+static inline int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id,
+ bool cable_state)
+{
+ return extcon_set_state_sync(edev, id, cable_state);
+}
#endif /* __LINUX_EXTCON_H__ */
/**
* struct adc_jack_cond - condition to use an extcon state
- * @state: the corresponding extcon state (if 0, this struct
* denotes the last adc_jack_cond element among the array)
+ * @id: the unique id of each external connector
* @min_adc: min adc value for this condition
* @max_adc: max adc value for this condition
*
* because when no adc_jack_cond is met, state = 0 is automatically chosen.
*/
struct adc_jack_cond {
- u32 state; /* extcon state value. 0 if invalid */
+ unsigned int id;
u32 min_adc;
u32 max_adc;
};
projects / deliverable / linux.git / commitdiff
