#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/slab.h>
+#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#define DEV_NAME "max77693-muic"
-/* MAX77693 MUIC - STATUS1~3 Register */
-#define STATUS1_ADC_SHIFT (0)
-#define STATUS1_ADCLOW_SHIFT (5)
-#define STATUS1_ADCERR_SHIFT (6)
-#define STATUS1_ADC1K_SHIFT (7)
-#define STATUS1_ADC_MASK (0x1f << STATUS1_ADC_SHIFT)
-#define STATUS1_ADCLOW_MASK (0x1 << STATUS1_ADCLOW_SHIFT)
-#define STATUS1_ADCERR_MASK (0x1 << STATUS1_ADCERR_SHIFT)
-#define STATUS1_ADC1K_MASK (0x1 << STATUS1_ADC1K_SHIFT)
-
-#define STATUS2_CHGTYP_SHIFT (0)
-#define STATUS2_CHGDETRUN_SHIFT (3)
-#define STATUS2_DCDTMR_SHIFT (4)
-#define STATUS2_DXOVP_SHIFT (5)
-#define STATUS2_VBVOLT_SHIFT (6)
-#define STATUS2_VIDRM_SHIFT (7)
-#define STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT)
-#define STATUS2_CHGDETRUN_MASK (0x1 << STATUS2_CHGDETRUN_SHIFT)
-#define STATUS2_DCDTMR_MASK (0x1 << STATUS2_DCDTMR_SHIFT)
-#define STATUS2_DXOVP_MASK (0x1 << STATUS2_DXOVP_SHIFT)
-#define STATUS2_VBVOLT_MASK (0x1 << STATUS2_VBVOLT_SHIFT)
-#define STATUS2_VIDRM_MASK (0x1 << STATUS2_VIDRM_SHIFT)
-
-#define STATUS3_OVP_SHIFT (2)
-#define STATUS3_OVP_MASK (0x1 << STATUS3_OVP_SHIFT)
-
-/* MAX77693 CDETCTRL1~2 register */
-#define CDETCTRL1_CHGDETEN_SHIFT (0)
-#define CDETCTRL1_CHGTYPMAN_SHIFT (1)
-#define CDETCTRL1_DCDEN_SHIFT (2)
-#define CDETCTRL1_DCD2SCT_SHIFT (3)
-#define CDETCTRL1_CDDELAY_SHIFT (4)
-#define CDETCTRL1_DCDCPL_SHIFT (5)
-#define CDETCTRL1_CDPDET_SHIFT (7)
-#define CDETCTRL1_CHGDETEN_MASK (0x1 << CDETCTRL1_CHGDETEN_SHIFT)
-#define CDETCTRL1_CHGTYPMAN_MASK (0x1 << CDETCTRL1_CHGTYPMAN_SHIFT)
-#define CDETCTRL1_DCDEN_MASK (0x1 << CDETCTRL1_DCDEN_SHIFT)
-#define CDETCTRL1_DCD2SCT_MASK (0x1 << CDETCTRL1_DCD2SCT_SHIFT)
-#define CDETCTRL1_CDDELAY_MASK (0x1 << CDETCTRL1_CDDELAY_SHIFT)
-#define CDETCTRL1_DCDCPL_MASK (0x1 << CDETCTRL1_DCDCPL_SHIFT)
-#define CDETCTRL1_CDPDET_MASK (0x1 << CDETCTRL1_CDPDET_SHIFT)
-
-#define CDETCTRL2_VIDRMEN_SHIFT (1)
-#define CDETCTRL2_DXOVPEN_SHIFT (3)
-#define CDETCTRL2_VIDRMEN_MASK (0x1 << CDETCTRL2_VIDRMEN_SHIFT)
-#define CDETCTRL2_DXOVPEN_MASK (0x1 << CDETCTRL2_DXOVPEN_SHIFT)
-
-/* MAX77693 MUIC - CONTROL1~3 register */
-#define COMN1SW_SHIFT (0)
-#define COMP2SW_SHIFT (3)
-#define COMN1SW_MASK (0x7 << COMN1SW_SHIFT)
-#define COMP2SW_MASK (0x7 << COMP2SW_SHIFT)
-#define COMP_SW_MASK (COMP2SW_MASK | COMN1SW_MASK)
-#define CONTROL1_SW_USB ((1 << COMP2SW_SHIFT) \
- | (1 << COMN1SW_SHIFT))
-#define CONTROL1_SW_AUDIO ((2 << COMP2SW_SHIFT) \
- | (2 << COMN1SW_SHIFT))
-#define CONTROL1_SW_UART ((3 << COMP2SW_SHIFT) \
- | (3 << COMN1SW_SHIFT))
-#define CONTROL1_SW_OPEN ((0 << COMP2SW_SHIFT) \
- | (0 << COMN1SW_SHIFT))
-
-#define CONTROL2_LOWPWR_SHIFT (0)
-#define CONTROL2_ADCEN_SHIFT (1)
-#define CONTROL2_CPEN_SHIFT (2)
-#define CONTROL2_SFOUTASRT_SHIFT (3)
-#define CONTROL2_SFOUTORD_SHIFT (4)
-#define CONTROL2_ACCDET_SHIFT (5)
-#define CONTROL2_USBCPINT_SHIFT (6)
-#define CONTROL2_RCPS_SHIFT (7)
-#define CONTROL2_LOWPWR_MASK (0x1 << CONTROL2_LOWPWR_SHIFT)
-#define CONTROL2_ADCEN_MASK (0x1 << CONTROL2_ADCEN_SHIFT)
-#define CONTROL2_CPEN_MASK (0x1 << CONTROL2_CPEN_SHIFT)
-#define CONTROL2_SFOUTASRT_MASK (0x1 << CONTROL2_SFOUTASRT_SHIFT)
-#define CONTROL2_SFOUTORD_MASK (0x1 << CONTROL2_SFOUTORD_SHIFT)
-#define CONTROL2_ACCDET_MASK (0x1 << CONTROL2_ACCDET_SHIFT)
-#define CONTROL2_USBCPINT_MASK (0x1 << CONTROL2_USBCPINT_SHIFT)
-#define CONTROL2_RCPS_MASK (0x1 << CONTROL2_RCPS_SHIFT)
-
-#define CONTROL3_JIGSET_SHIFT (0)
-#define CONTROL3_BTLDSET_SHIFT (2)
-#define CONTROL3_ADCDBSET_SHIFT (4)
-#define CONTROL3_JIGSET_MASK (0x3 << CONTROL3_JIGSET_SHIFT)
-#define CONTROL3_BTLDSET_MASK (0x3 << CONTROL3_BTLDSET_SHIFT)
-#define CONTROL3_ADCDBSET_MASK (0x3 << CONTROL3_ADCDBSET_SHIFT)
-
enum max77693_muic_adc_debounce_time {
ADC_DEBOUNCE_TIME_5MS = 0,
ADC_DEBOUNCE_TIME_10MS,
struct device *dev;
struct max77693_dev *max77693;
struct extcon_dev *edev;
- int prev_adc;
- int prev_adc_gnd;
+ int prev_cable_type;
+ int prev_cable_type_gnd;
int prev_chg_type;
+ int prev_button_type;
u8 status[2];
int irq;
struct work_struct irq_work;
struct mutex mutex;
+
+ /* Button of dock device */
+ struct input_dev *dock;
+};
+
+enum max77693_muic_cable_group {
+ MAX77693_CABLE_GROUP_ADC = 0,
+ MAX77693_CABLE_GROUP_ADC_GND,
+ MAX77693_CABLE_GROUP_CHG,
+ MAX77693_CABLE_GROUP_VBVOLT,
};
enum max77693_muic_charger_type {
/* The below accessories have same ADC value so ADCLow and
ADC1K bit is used to separate specific accessory */
- MAX77693_MUIC_GND_USB_OTG = 0x100, /* ADC:0x0, ADCLow:0, ADC1K:0 */
- MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* ADC:0x0, ADCLow:1, ADC1K:0 */
- MAX77693_MUIC_GND_MHL_CABLE = 0x103, /* ADC:0x0, ADCLow:1, ADC1K:1 */
+ MAX77693_MUIC_GND_USB_OTG = 0x100, /* ADC:0x0, VBVolot:0, ADCLow:0, ADC1K:0 */
+ MAX77693_MUIC_GND_USB_OTG_VB = 0x104, /* ADC:0x0, VBVolot:1, ADCLow:0, ADC1K:0 */
+ MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* ADC:0x0, VBVolot:0, ADCLow:1, ADC1K:0 */
+ MAX77693_MUIC_GND_MHL = 0x103, /* ADC:0x0, VBVolot:0, ADCLow:1, ADC1K:1 */
+ MAX77693_MUIC_GND_MHL_VB = 0x107, /* ADC:0x0, VBVolot:1, ADCLow:1, ADC1K:1 */
};
/* MAX77693 MUIC device support below list of accessories(external connector) */
+enum {
+ EXTCON_CABLE_USB = 0,
+ EXTCON_CABLE_USB_HOST,
+ EXTCON_CABLE_TA,
+ EXTCON_CABLE_FAST_CHARGER,
+ EXTCON_CABLE_SLOW_CHARGER,
+ EXTCON_CABLE_CHARGE_DOWNSTREAM,
+ EXTCON_CABLE_MHL,
+ EXTCON_CABLE_MHL_TA,
+ EXTCON_CABLE_JIG_USB_ON,
+ EXTCON_CABLE_JIG_USB_OFF,
+ EXTCON_CABLE_JIG_UART_OFF,
+ EXTCON_CABLE_JIG_UART_ON,
+ EXTCON_CABLE_DOCK_SMART,
+ EXTCON_CABLE_DOCK_DESK,
+ EXTCON_CABLE_DOCK_AUDIO,
+
+ _EXTCON_CABLE_NUM,
+};
+
const char *max77693_extcon_cable[] = {
- [0] = "USB",
- [1] = "USB-Host",
- [2] = "TA",
- [3] = "Fast-charger",
- [4] = "Slow-charger",
- [5] = "Charge-downstream",
- [6] = "MHL",
- [7] = "Audio-video-load",
- [8] = "Audio-video-noload",
- [9] = "JIG",
+ [EXTCON_CABLE_USB] = "USB",
+ [EXTCON_CABLE_USB_HOST] = "USB-Host",
+ [EXTCON_CABLE_TA] = "TA",
+ [EXTCON_CABLE_FAST_CHARGER] = "Fast-charger",
+ [EXTCON_CABLE_SLOW_CHARGER] = "Slow-charger",
+ [EXTCON_CABLE_CHARGE_DOWNSTREAM] = "Charge-downstream",
+ [EXTCON_CABLE_MHL] = "MHL",
+ [EXTCON_CABLE_MHL_TA] = "MHL_TA",
+ [EXTCON_CABLE_JIG_USB_ON] = "JIG-USB-ON",
+ [EXTCON_CABLE_JIG_USB_OFF] = "JIG-USB-OFF",
+ [EXTCON_CABLE_JIG_UART_OFF] = "JIG-UART-OFF",
+ [EXTCON_CABLE_JIG_UART_ON] = "Dock-Car",
+ [EXTCON_CABLE_DOCK_SMART] = "Dock-Smart",
+ [EXTCON_CABLE_DOCK_DESK] = "Dock-Desk",
+ [EXTCON_CABLE_DOCK_AUDIO] = "Dock-Audio",
NULL,
};
+/*
+ * max77693_muic_set_debounce_time - Set the debounce time of ADC
+ * @info: the instance including private data of max77693 MUIC
+ * @time: the debounce time of ADC
+ */
static int max77693_muic_set_debounce_time(struct max77693_muic_info *info,
enum max77693_muic_adc_debounce_time time)
{
return ret;
};
+/*
+ * max77693_muic_set_path - Set hardware line according to attached cable
+ * @info: the instance including private data of max77693 MUIC
+ * @value: the path according to attached cable
+ * @attached: the state of cable (true:attached, false:detached)
+ *
+ * The max77693 MUIC device share outside H/W line among a varity of cables
+ * so, this function set internal path of H/W line according to the type of
+ * attached cable.
+ */
static int max77693_muic_set_path(struct max77693_muic_info *info,
u8 val, bool attached)
{
return ret;
}
-static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info,
- bool attached)
+/*
+ * max77693_muic_get_cable_type - Return cable type and check cable state
+ * @info: the instance including private data of max77693 MUIC
+ * @group: the path according to attached cable
+ * @attached: store cable state and return
+ *
+ * This function check the cable state either attached or detached,
+ * and then divide precise type of cable according to cable group.
+ * - MAX77693_CABLE_GROUP_ADC
+ * - MAX77693_CABLE_GROUP_ADC_GND
+ * - MAX77693_CABLE_GROUP_CHG
+ * - MAX77693_CABLE_GROUP_VBVOLT
+ */
+static int max77693_muic_get_cable_type(struct max77693_muic_info *info,
+ enum max77693_muic_cable_group group, bool *attached)
{
- int ret = 0;
- int type;
- int adc, adc1k, adclow;
+ int cable_type = 0;
+ int adc;
+ int adc1k;
+ int adclow;
+ int vbvolt;
+ int chg_type;
- if (attached) {
+ switch (group) {
+ case MAX77693_CABLE_GROUP_ADC:
+ /*
+ * Read ADC value to check cable type and decide cable state
+ * according to cable type
+ */
adc = info->status[0] & STATUS1_ADC_MASK;
- adclow = info->status[0] & STATUS1_ADCLOW_MASK;
- adclow >>= STATUS1_ADCLOW_SHIFT;
- adc1k = info->status[0] & STATUS1_ADC1K_MASK;
- adc1k >>= STATUS1_ADC1K_SHIFT;
-
- /**
- * [0x1][ADCLow][ADC1K]
- * [0x1 0 0 ] : USB_OTG
- * [0x1 1 0 ] : Audio Video Cable with load
- * [0x1 1 1 ] : MHL
+ adc >>= STATUS1_ADC_SHIFT;
+
+ /*
+ * Check current cable state/cable type and store cable type
+ * (info->prev_cable_type) for handling cable when cable is
+ * detached.
*/
- type = ((0x1 << 8) | (adclow << 1) | adc1k);
+ if (adc == MAX77693_MUIC_ADC_OPEN) {
+ *attached = false;
+
+ cable_type = info->prev_cable_type;
+ info->prev_cable_type = MAX77693_MUIC_ADC_OPEN;
+ } else {
+ *attached = true;
+
+ cable_type = info->prev_cable_type = adc;
+ }
+ break;
+ case MAX77693_CABLE_GROUP_ADC_GND:
+ /*
+ * Read ADC value to check cable type and decide cable state
+ * according to cable type
+ */
+ adc = info->status[0] & STATUS1_ADC_MASK;
+ adc >>= STATUS1_ADC_SHIFT;
+
+ /*
+ * Check current cable state/cable type and store cable type
+ * (info->prev_cable_type/_gnd) for handling cable when cable
+ * is detached.
+ */
+ if (adc == MAX77693_MUIC_ADC_OPEN) {
+ *attached = false;
+
+ cable_type = info->prev_cable_type_gnd;
+ info->prev_cable_type_gnd = MAX77693_MUIC_ADC_OPEN;
+ } else {
+ *attached = true;
+
+ adclow = info->status[0] & STATUS1_ADCLOW_MASK;
+ adclow >>= STATUS1_ADCLOW_SHIFT;
+ adc1k = info->status[0] & STATUS1_ADC1K_MASK;
+ adc1k >>= STATUS1_ADC1K_SHIFT;
+
+ vbvolt = info->status[1] & STATUS2_VBVOLT_MASK;
+ vbvolt >>= STATUS2_VBVOLT_SHIFT;
+
+ /**
+ * [0x1][VBVolt][ADCLow][ADC1K]
+ * [0x1 0 0 0 ] : USB_OTG
+ * [0x1 1 0 0 ] : USB_OTG_VB
+ * [0x1 0 1 0 ] : Audio Video Cable with load
+ * [0x1 0 1 1 ] : MHL without charging connector
+ * [0x1 1 1 1 ] : MHL with charging connector
+ */
+ cable_type = ((0x1 << 8)
+ | (vbvolt << 2)
+ | (adclow << 1)
+ | adc1k);
+
+ info->prev_cable_type = adc;
+ info->prev_cable_type_gnd = cable_type;
+ }
+
+ break;
+ case MAX77693_CABLE_GROUP_CHG:
+ /*
+ * Read charger type to check cable type and decide cable state
+ * according to type of charger cable.
+ */
+ chg_type = info->status[1] & STATUS2_CHGTYP_MASK;
+ chg_type >>= STATUS2_CHGTYP_SHIFT;
+
+ if (chg_type == MAX77693_CHARGER_TYPE_NONE) {
+ *attached = false;
+
+ cable_type = info->prev_chg_type;
+ info->prev_chg_type = MAX77693_CHARGER_TYPE_NONE;
+ } else {
+ *attached = true;
+
+ /*
+ * Check current cable state/cable type and store cable
+ * type(info->prev_chg_type) for handling cable when
+ * charger cable is detached.
+ */
+ cable_type = info->prev_chg_type = chg_type;
+ }
+
+ break;
+ case MAX77693_CABLE_GROUP_VBVOLT:
+ /*
+ * Read ADC value to check cable type and decide cable state
+ * according to cable type
+ */
+ adc = info->status[0] & STATUS1_ADC_MASK;
+ adc >>= STATUS1_ADC_SHIFT;
+ chg_type = info->status[1] & STATUS2_CHGTYP_MASK;
+ chg_type >>= STATUS2_CHGTYP_SHIFT;
+
+ if (adc == MAX77693_MUIC_ADC_OPEN
+ && chg_type == MAX77693_CHARGER_TYPE_NONE)
+ *attached = false;
+ else
+ *attached = true;
+
+ /*
+ * Read vbvolt field, if vbvolt is 1,
+ * this cable is used for charging.
+ */
+ vbvolt = info->status[1] & STATUS2_VBVOLT_MASK;
+ vbvolt >>= STATUS2_VBVOLT_SHIFT;
+
+ cable_type = vbvolt;
+ break;
+ default:
+ dev_err(info->dev, "Unknown cable group (%d)\n", group);
+ cable_type = -EINVAL;
+ break;
+ }
+
+ return cable_type;
+}
+
+static int max77693_muic_dock_handler(struct max77693_muic_info *info,
+ int cable_type, bool attached)
+{
+ int ret = 0;
+ char dock_name[CABLE_NAME_MAX];
+
+ dev_info(info->dev,
+ "external connector is %s (adc:0x%02x)\n",
+ attached ? "attached" : "detached", cable_type);
+
+ switch (cable_type) {
+ case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */
+ /* PATH:AP_USB */
+ ret = max77693_muic_set_path(info,
+ CONTROL1_SW_USB, attached);
+ if (ret < 0)
+ goto out;
+
+ /* Dock-Smart */
+ extcon_set_cable_state(info->edev, "Dock-Smart", attached);
+ goto out;
+ case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: /* Dock-Car */
+ strcpy(dock_name, "Dock-Car");
+ break;
+ case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */
+ strcpy(dock_name, "Dock-Desk");
+ break;
+ case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */
+ strcpy(dock_name, "Dock-Audio");
+ if (!attached)
+ extcon_set_cable_state(info->edev, "USB", false);
+ break;
+ }
- /* Store previous ADC value to handle accessory
- when accessory will be detached */
- info->prev_adc = adc;
- info->prev_adc_gnd = type;
- } else
- type = info->prev_adc_gnd;
+ /* Dock-Car/Desk/Audio, PATH:AUDIO */
+ ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
+ if (ret < 0)
+ goto out;
+ extcon_set_cable_state(info->edev, dock_name, attached);
- switch (type) {
+out:
+ return ret;
+}
+
+static int max77693_muic_dock_button_handler(struct max77693_muic_info *info,
+ int button_type, bool attached)
+{
+ struct input_dev *dock = info->dock;
+ unsigned int code;
+ int ret = 0;
+
+ switch (button_type) {
+ case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON-1
+ ... MAX77693_MUIC_ADC_REMOTE_S3_BUTTON+1:
+ /* DOCK_KEY_PREV */
+ code = KEY_PREVIOUSSONG;
+ break;
+ case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON-1
+ ... MAX77693_MUIC_ADC_REMOTE_S7_BUTTON+1:
+ /* DOCK_KEY_NEXT */
+ code = KEY_NEXTSONG;
+ break;
+ case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON:
+ /* DOCK_VOL_DOWN */
+ code = KEY_VOLUMEDOWN;
+ break;
+ case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON:
+ /* DOCK_VOL_UP */
+ code = KEY_VOLUMEUP;
+ break;
+ case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON-1
+ ... MAX77693_MUIC_ADC_REMOTE_S12_BUTTON+1:
+ /* DOCK_KEY_PLAY_PAUSE */
+ code = KEY_PLAYPAUSE;
+ break;
+ default:
+ dev_err(info->dev,
+ "failed to detect %s key (adc:0x%x)\n",
+ attached ? "pressed" : "released", button_type);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ input_event(dock, EV_KEY, code, attached);
+ input_sync(dock);
+
+out:
+ return 0;
+}
+
+static int max77693_muic_adc_ground_handler(struct max77693_muic_info *info)
+{
+ int cable_type_gnd;
+ int ret = 0;
+ bool attached;
+
+ cable_type_gnd = max77693_muic_get_cable_type(info,
+ MAX77693_CABLE_GROUP_ADC_GND, &attached);
+
+ switch (cable_type_gnd) {
case MAX77693_MUIC_GND_USB_OTG:
- /* USB_OTG */
+ case MAX77693_MUIC_GND_USB_OTG_VB:
+ /* USB_OTG, PATH: AP_USB */
ret = max77693_muic_set_path(info, CONTROL1_SW_USB, attached);
if (ret < 0)
goto out;
extcon_set_cable_state(info->edev, "USB-Host", attached);
break;
case MAX77693_MUIC_GND_AV_CABLE_LOAD:
- /* Audio Video Cable with load */
+ /* Audio Video Cable with load, PATH:AUDIO */
ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
if (ret < 0)
goto out;
extcon_set_cable_state(info->edev,
"Audio-video-load", attached);
break;
- case MAX77693_MUIC_GND_MHL_CABLE:
- /* MHL */
+ case MAX77693_MUIC_GND_MHL:
+ case MAX77693_MUIC_GND_MHL_VB:
+ /* MHL or MHL with USB/TA cable */
extcon_set_cable_state(info->edev, "MHL", attached);
break;
default:
dev_err(info->dev, "failed to detect %s accessory\n",
attached ? "attached" : "detached");
- dev_err(info->dev, "- adc:0x%x, adclow:0x%x, adc1k:0x%x\n",
- adc, adclow, adc1k);
ret = -EINVAL;
break;
}
return ret;
}
-static int max77693_muic_adc_handler(struct max77693_muic_info *info,
- int curr_adc, bool attached)
+static int max77693_muic_jig_handler(struct max77693_muic_info *info,
+ int cable_type, bool attached)
{
+ char cable_name[32];
int ret = 0;
- int adc;
+ u8 path = CONTROL1_SW_OPEN;
+
+ dev_info(info->dev,
+ "external connector is %s (adc:0x%02x)\n",
+ attached ? "attached" : "detached", cable_type);
+
+ switch (cable_type) {
+ case MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF: /* ADC_JIG_USB_OFF */
+ /* PATH:AP_USB */
+ strcpy(cable_name, "JIG-USB-OFF");
+ path = CONTROL1_SW_USB;
+ break;
+ case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON: /* ADC_JIG_USB_ON */
+ /* PATH:AP_USB */
+ strcpy(cable_name, "JIG-USB-ON");
+ path = CONTROL1_SW_USB;
+ break;
+ case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF: /* ADC_JIG_UART_OFF */
+ /* PATH:AP_UART */
+ strcpy(cable_name, "JIG-UART-OFF");
+ path = CONTROL1_SW_UART;
+ break;
+ }
- if (attached) {
- /* Store ADC value to handle accessory
- when accessory will be detached */
- info->prev_adc = curr_adc;
- adc = curr_adc;
- } else
- adc = info->prev_adc;
+ ret = max77693_muic_set_path(info, path, attached);
+ if (ret < 0)
+ goto out;
+
+ extcon_set_cable_state(info->edev, cable_name, attached);
+out:
+ return ret;
+}
+
+static int max77693_muic_adc_handler(struct max77693_muic_info *info)
+{
+ int cable_type;
+ int button_type;
+ bool attached;
+ int ret = 0;
+
+ /* Check accessory state which is either detached or attached */
+ cable_type = max77693_muic_get_cable_type(info,
+ MAX77693_CABLE_GROUP_ADC, &attached);
dev_info(info->dev,
"external connector is %s (adc:0x%02x, prev_adc:0x%x)\n",
- attached ? "attached" : "detached", curr_adc, info->prev_adc);
+ attached ? "attached" : "detached", cable_type,
+ info->prev_cable_type);
- switch (adc) {
+ switch (cable_type) {
case MAX77693_MUIC_ADC_GROUND:
/* USB_OTG/MHL/Audio */
- max77693_muic_adc_ground_handler(info, attached);
+ max77693_muic_adc_ground_handler(info);
break;
case MAX77693_MUIC_ADC_FACTORY_MODE_USB_OFF:
case MAX77693_MUIC_ADC_FACTORY_MODE_USB_ON:
- /* USB */
- ret = max77693_muic_set_path(info, CONTROL1_SW_USB, attached);
+ case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF:
+ /* JIG */
+ ret = max77693_muic_jig_handler(info, cable_type, attached);
if (ret < 0)
goto out;
- extcon_set_cable_state(info->edev, "USB", attached);
break;
- case MAX77693_MUIC_ADC_FACTORY_MODE_UART_OFF:
- case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON:
- /* JIG */
- ret = max77693_muic_set_path(info, CONTROL1_SW_UART, attached);
+ case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */
+ case MAX77693_MUIC_ADC_FACTORY_MODE_UART_ON: /* Dock-Car */
+ case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE: /* Dock-Desk */
+ case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */
+ /*
+ * DOCK device
+ *
+ * The MAX77693 MUIC device can detect total 34 cable type
+ * except of charger cable and MUIC device didn't define
+ * specfic role of cable in the range of from 0x01 to 0x12
+ * of ADC value. So, can use/define cable with no role according
+ * to schema of hardware board.
+ */
+ ret = max77693_muic_dock_handler(info, cable_type, attached);
if (ret < 0)
goto out;
- extcon_set_cable_state(info->edev, "JIG", attached);
break;
- case MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE:
- /* Audio Video cable with no-load */
- ret = max77693_muic_set_path(info, CONTROL1_SW_AUDIO, attached);
+ case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON: /* DOCK_KEY_PREV */
+ case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON: /* DOCK_KEY_NEXT */
+ case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON: /* DOCK_VOL_DOWN */
+ case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON: /* DOCK_VOL_UP */
+ case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON: /* DOCK_KEY_PLAY_PAUSE */
+ /*
+ * Button of DOCK device
+ * - the Prev/Next/Volume Up/Volume Down/Play-Pause button
+ *
+ * The MAX77693 MUIC device can detect total 34 cable type
+ * except of charger cable and MUIC device didn't define
+ * specfic role of cable in the range of from 0x01 to 0x12
+ * of ADC value. So, can use/define cable with no role according
+ * to schema of hardware board.
+ */
+ if (attached)
+ button_type = info->prev_button_type = cable_type;
+ else
+ button_type = info->prev_button_type;
+
+ ret = max77693_muic_dock_button_handler(info, button_type,
+ attached);
if (ret < 0)
goto out;
- extcon_set_cable_state(info->edev,
- "Audio-video-noload", attached);
break;
case MAX77693_MUIC_ADC_SEND_END_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S1_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S2_BUTTON:
- case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S4_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S5_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S6_BUTTON:
- case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S8_BUTTON:
- case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON:
- case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON:
case MAX77693_MUIC_ADC_REMOTE_S11_BUTTON:
- case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON:
case MAX77693_MUIC_ADC_RESERVED_ACC_1:
case MAX77693_MUIC_ADC_RESERVED_ACC_2:
- case MAX77693_MUIC_ADC_RESERVED_ACC_3:
case MAX77693_MUIC_ADC_RESERVED_ACC_4:
case MAX77693_MUIC_ADC_RESERVED_ACC_5:
case MAX77693_MUIC_ADC_CEA936_AUDIO:
case MAX77693_MUIC_ADC_TTY_CONVERTER:
case MAX77693_MUIC_ADC_UART_CABLE:
case MAX77693_MUIC_ADC_CEA936A_TYPE1_CHG:
- case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD:
case MAX77693_MUIC_ADC_CEA936A_TYPE2_CHG:
- /* This accessory isn't used in general case if it is specially
- needed to detect additional accessory, should implement
- proper operation when this accessory is attached/detached. */
+ /*
+ * This accessory isn't used in general case if it is specially
+ * needed to detect additional accessory, should implement
+ * proper operation when this accessory is attached/detached.
+ */
dev_info(info->dev,
"accessory is %s but it isn't used (adc:0x%x)\n",
- attached ? "attached" : "detached", adc);
+ attached ? "attached" : "detached", cable_type);
goto out;
default:
dev_err(info->dev,
"failed to detect %s accessory (adc:0x%x)\n",
- attached ? "attached" : "detached", adc);
+ attached ? "attached" : "detached", cable_type);
ret = -EINVAL;
goto out;
}
return ret;
}
-static int max77693_muic_chg_handler(struct max77693_muic_info *info,
- int curr_chg_type, bool attached)
+static int max77693_muic_chg_handler(struct max77693_muic_info *info)
{
- int ret = 0;
int chg_type;
+ int cable_type_gnd;
+ int cable_type;
+ bool attached;
+ bool cable_attached;
+ int ret = 0;
- if (attached) {
- /* Store previous charger type to control
- when charger accessory will be detached */
- info->prev_chg_type = curr_chg_type;
- chg_type = curr_chg_type;
- } else
- chg_type = info->prev_chg_type;
+ chg_type = max77693_muic_get_cable_type(info,
+ MAX77693_CABLE_GROUP_CHG, &attached);
dev_info(info->dev,
"external connector is %s(chg_type:0x%x, prev_chg_type:0x%x)\n",
attached ? "attached" : "detached",
- curr_chg_type, info->prev_chg_type);
+ chg_type, info->prev_chg_type);
switch (chg_type) {
case MAX77693_CHARGER_TYPE_USB:
+ /*
+ * MHL_TA(USB/TA) with MHL cable
+ * - MHL cable include two port(HDMI line and separate micro
+ * -usb port. When the target connect MHL cable, extcon driver
+ * check whether MHL_TA(USB/TA) cable is connected. If MHL_TA
+ * cable is connected, extcon driver notify state to notifiee
+ * for charging battery.
+ */
+ cable_type_gnd = max77693_muic_get_cable_type(info,
+ MAX77693_CABLE_GROUP_ADC_GND,
+ &cable_attached);
+ if (cable_type_gnd == MAX77693_MUIC_GND_MHL
+ || cable_type_gnd == MAX77693_MUIC_GND_MHL_VB) {
+ extcon_set_cable_state(info->edev, "MHL_TA", attached);
+
+ if (!cable_attached)
+ extcon_set_cable_state(info->edev,
+ "MHL", false);
+ goto out;
+ }
+
+ /*
+ * USB/TA cable with Dock-Audio device
+ * - Dock device include two port(Dock-Audio and micro-usb
+ * port). When the target connect Dock-Audio device, extcon
+ * driver check whether USB/TA cable is connected.
+ * If USB/TA cable is connected, extcon driver notify state
+ * to notifiee for charging battery.
+ */
+ cable_type = max77693_muic_get_cable_type(info,
+ MAX77693_CABLE_GROUP_ADC,
+ &cable_attached);
+ if (cable_type == MAX77693_MUIC_ADC_AV_CABLE_NOLOAD) {
+ extcon_set_cable_state(info->edev, "USB", attached);
+
+ if (!cable_attached)
+ extcon_set_cable_state(info->edev,
+ "Dock-Audio", false);
+ goto out;
+ }
+
+ /* Only USB cable, PATH:AP_USB */
ret = max77693_muic_set_path(info, CONTROL1_SW_USB, attached);
if (ret < 0)
goto out;
{
struct max77693_muic_info *info = container_of(work,
struct max77693_muic_info, irq_work);
- int curr_adc, curr_chg_type;
int irq_type = -1;
int i, ret = 0;
- bool attached = true;
if (!info->edev)
return;
case MAX77693_MUIC_IRQ_INT1_ADC1K:
/* Handle all of accessory except for
type of charger accessory */
- curr_adc = info->status[0] & STATUS1_ADC_MASK;
- curr_adc >>= STATUS1_ADC_SHIFT;
-
- /* Check accessory state which is either detached or attached */
- if (curr_adc == MAX77693_MUIC_ADC_OPEN)
- attached = false;
-
- ret = max77693_muic_adc_handler(info, curr_adc, attached);
+ ret = max77693_muic_adc_handler(info);
break;
case MAX77693_MUIC_IRQ_INT2_CHGTYP:
case MAX77693_MUIC_IRQ_INT2_CHGDETREUN:
case MAX77693_MUIC_IRQ_INT2_VBVOLT:
case MAX77693_MUIC_IRQ_INT2_VIDRM:
/* Handle charger accessory */
- curr_chg_type = info->status[1] & STATUS2_CHGTYP_MASK;
- curr_chg_type >>= STATUS2_CHGTYP_SHIFT;
-
- /* Check charger accessory state which
- is either detached or attached */
- if (curr_chg_type == MAX77693_CHARGER_TYPE_NONE)
- attached = false;
-
- ret = max77693_muic_chg_handler(info, curr_chg_type, attached);
+ ret = max77693_muic_chg_handler(info);
break;
case MAX77693_MUIC_IRQ_INT3_EOC:
case MAX77693_MUIC_IRQ_INT3_CGMBC:
static int max77693_muic_detect_accessory(struct max77693_muic_info *info)
{
int ret = 0;
- int adc, chg_type;
+ int adc;
+ int chg_type;
+ bool attached;
mutex_lock(&info->mutex);
return -EINVAL;
}
- adc = info->status[0] & STATUS1_ADC_MASK;
- adc >>= STATUS1_ADC_SHIFT;
-
- if (adc != MAX77693_MUIC_ADC_OPEN) {
- dev_info(info->dev,
- "external connector is attached (adc:0x%02x)\n", adc);
-
- ret = max77693_muic_adc_handler(info, adc, true);
+ adc = max77693_muic_get_cable_type(info, MAX77693_CABLE_GROUP_ADC,
+ &attached);
+ if (attached && adc != MAX77693_MUIC_ADC_OPEN) {
+ ret = max77693_muic_adc_handler(info);
if (ret < 0)
- dev_err(info->dev, "failed to detect accessory\n");
- goto out;
+ dev_err(info->dev, "Cannot detect accessory\n");
}
- chg_type = info->status[1] & STATUS2_CHGTYP_MASK;
- chg_type >>= STATUS2_CHGTYP_SHIFT;
-
- if (chg_type != MAX77693_CHARGER_TYPE_NONE) {
- dev_info(info->dev,
- "external connector is attached (chg_type:0x%x)\n",
- chg_type);
-
- max77693_muic_chg_handler(info, chg_type, true);
+ chg_type = max77693_muic_get_cable_type(info, MAX77693_CABLE_GROUP_CHG,
+ &attached);
+ if (attached && chg_type != MAX77693_CHARGER_TYPE_NONE) {
+ ret = max77693_muic_chg_handler(info);
if (ret < 0)
- dev_err(info->dev, "failed to detect charger accessory\n");
+ dev_err(info->dev, "Cannot detect charger accessory\n");
}
-out:
mutex_unlock(&info->mutex);
+
return ret;
}
return ret;
}
}
+
+ /* Register input device for button of dock device */
+ info->dock = input_allocate_device();
+ if (!info->dock) {
+ dev_err(&pdev->dev, "%s: failed to allocate input\n", __func__);
+ return -ENOMEM;
+ }
+ info->dock->name = "max77693-muic/dock";
+ info->dock->phys = "max77693-muic/extcon";
+ info->dock->dev.parent = &pdev->dev;
+
+ __set_bit(EV_REP, info->dock->evbit);
+
+ input_set_capability(info->dock, EV_KEY, KEY_VOLUMEUP);
+ input_set_capability(info->dock, EV_KEY, KEY_VOLUMEDOWN);
+ input_set_capability(info->dock, EV_KEY, KEY_PLAYPAUSE);
+ input_set_capability(info->dock, EV_KEY, KEY_PREVIOUSSONG);
+ input_set_capability(info->dock, EV_KEY, KEY_NEXTSONG);
+
+ ret = input_register_device(info->dock);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Cannot register input device error(%d)\n",
+ ret);
+ return ret;
+ }
+
platform_set_drvdata(pdev, info);
mutex_init(&info->mutex);
MAX77693_MUIC_REG_ID, &id);
if (ret < 0) {
dev_err(&pdev->dev, "failed to read revision number\n");
- goto err_irq;
+ goto err_extcon;
}
dev_info(info->dev, "device ID : 0x%x\n", id);
return ret;
+err_extcon:
+ extcon_dev_unregister(info->edev);
err_irq:
while (--i >= 0)
free_irq(muic_irqs[i].virq, info);
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
free_irq(muic_irqs[i].virq, info);
cancel_work_sync(&info->irq_work);
+ input_unregister_device(info->dock);
extcon_dev_unregister(info->edev);
return 0;
projects / karo-tx-linux.git / blobdiff