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LeafOS / LeafOS-Devices / android_kernel_samsung_universal7904 / 2f162a52c147621b18e45f2a0c4b19476ef3db72 / . / drivers / ccic / ccic_alternate.c
blob: e704d6ca95a12c4d4593742572dfe38452e72e06 [file] [log] [blame]
/*
* driver/ccic/ccic_alternate.c - S2MM005 USB CCIC Alternate mode driver
*
* Copyright (C) 2016 Samsung Electronics
* Author: Wookwang Lee <wookwang.lee@samsung.com>
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/ccic/s2mm005.h>
#include <linux/ccic/s2mm005_ext.h>
#include <linux/ccic/ccic_alternate.h>
#include <asm/byteorder.h>
#include "ccic_misc.h"
#if defined(CONFIG_USB_HOST_NOTIFY)
#include <linux/usb_notify.h>
#endif
/* switch device header */
#if defined(CONFIG_SWITCH)
#include <linux/switch.h>
#else
#error "ERROR: CONFIG_SWITCH is not set."
#endif /* CONFIG_SWITCH */
/********************************************
*
* s2mm005_cc.c called s2mm005_alternate.c
*
********************************************
*/
#if defined(CONFIG_CCIC_ALTERNATE_MODE)
extern struct device *ccic_device;
#if defined(CONFIG_SWITCH)
static struct switch_dev switch_dock = {
.name = "ccic_dock",
};
#endif /* CONFIG_SWITCH */
static char VDM_MSG_IRQ_State_Print[9][40] =
{
{"bFLAG_Vdm_Reserve_b0"},
{"bFLAG_Vdm_Discover_ID"},
{"bFLAG_Vdm_Discover_SVIDs"},
{"bFLAG_Vdm_Discover_MODEs"},
{"bFLAG_Vdm_Enter_Mode"},
{"bFLAG_Vdm_Exit_Mode"},
{"bFLAG_Vdm_Attention"},
{"bFlag_Vdm_DP_Status_Update"},
{"bFlag_Vdm_DP_Configure"},
};
static char DP_Pin_Assignment_Print[7][40] =
{
{"DP_Pin_Assignment_None"},
{"DP_Pin_Assignment_A"},
{"DP_Pin_Assignment_B"},
{"DP_Pin_Assignment_C"},
{"DP_Pin_Assignment_D"},
{"DP_Pin_Assignment_E"},
{"DP_Pin_Assignment_F"},
};
/*
*********************************************
*
* Alternate mode processing
*
*********************************************
*/
int ccic_register_switch_device(int mode)
{
#ifdef CONFIG_SWITCH
int ret = 0;
if (mode) {
ret = switch_dev_register(&switch_dock);
if (ret < 0) {
pr_err("%s: Failed to register dock switch(%d)\n",
__func__, ret);
return -ENODEV;
}
} else {
switch_dev_unregister(&switch_dock);
}
#endif /* CONFIG_SWITCH */
return 0;
}
static void ccic_send_dock_intent(int type)
{
pr_info("%s: CCIC dock type(%d)\n", __func__, type);
#ifdef CONFIG_SWITCH
switch_set_state(&switch_dock, type);
#endif /* CONFIG_SWITCH */
}
void ccic_send_dock_uevent(u32 vid, u32 pid, int state)
{
char switch_string[32];
char pd_ids_string[32];
char *envp[3] = { switch_string, pd_ids_string, NULL };
pr_info("%s: CCIC dock : USBPD_IPS=%04x:%04x SWITCH_STATE=%d\n",
__func__,
le16_to_cpu(vid),
le16_to_cpu(pid),
state);
if (IS_ERR(ccic_device)) {
pr_err("%s CCIC ERROR: Failed to send a dock uevent!\n",
__func__);
return;
}
snprintf(switch_string, 32, "SWITCH_STATE=%d", state);
snprintf(pd_ids_string, 32, "USBPD_IDS=%04x:%04x",
le16_to_cpu(vid),
le16_to_cpu(pid));
kobject_uevent_env(&ccic_device->kobj, KOBJ_CHANGE, envp);
}
void acc_detach_check(struct work_struct *wk)
{
struct delayed_work *delay_work =
container_of(wk, struct delayed_work, work);
struct s2mm005_data *usbpd_data =
container_of(delay_work, struct s2mm005_data, acc_detach_work);
pr_info("%s: usbpd_data->pd_state : %d\n", __func__,
usbpd_data->pd_state);
if (usbpd_data->pd_state == State_PE_Initial_detach) {
if (usbpd_data->acc_type != CCIC_DOCK_DETACHED) {
if (usbpd_data->acc_type != CCIC_DOCK_NEW)
ccic_send_dock_intent(CCIC_DOCK_DETACHED);
ccic_send_dock_uevent(usbpd_data->Vendor_ID,
usbpd_data->Product_ID,
CCIC_DOCK_DETACHED);
usbpd_data->acc_type = CCIC_DOCK_DETACHED;
usbpd_data->Vendor_ID = 0;
usbpd_data->Product_ID = 0;
}
}
}
void set_enable_powernego(int mode)
{
struct s2mm005_data *usbpd_data;
u8 W_DATA[2];
if (!ccic_device)
return;
usbpd_data = dev_get_drvdata(ccic_device);
if (!usbpd_data)
return;
if (mode) {
W_DATA[0] = 0x3;
W_DATA[1] = 0x42;
s2mm005_write_byte(usbpd_data->i2c, 0x10, &W_DATA[0], 2);
pr_info("%s : Power nego start\n", __func__);
} else
pr_info("%s : Power nego stop\n", __func__);
}
void set_enable_alternate_mode(int mode)
{
struct s2mm005_data *usbpd_data;
static int check_is_driver_loaded = 0;
static int prev_alternate_mode = 0;
u8 W_DATA[2];
if (!ccic_device)
return;
usbpd_data = dev_get_drvdata(ccic_device);
if (!usbpd_data)
return;
#ifdef CONFIG_USB_NOTIFY_PROC_LOG
store_usblog_notify(NOTIFY_ALTERNATEMODE, (void *)&mode, NULL);
#endif
if ((mode & ALTERNATE_MODE_NOT_READY) &&
(mode & ALTERNATE_MODE_READY)) {
pr_info("%s : mode is invalid!\n", __func__);
return;
}
if ((mode & ALTERNATE_MODE_START) && (mode & ALTERNATE_MODE_STOP)) {
pr_info("%s : mode is invalid!\n", __func__);
return;
}
if (mode & ALTERNATE_MODE_RESET) {
pr_info("%s : mode is reset! check_is_driver_loaded=%d, prev_alternate_mode=%d\n",
__func__, check_is_driver_loaded, prev_alternate_mode);
if (check_is_driver_loaded &&
(prev_alternate_mode == ALTERNATE_MODE_START)) {
W_DATA[0] = 0x3;
W_DATA[1] = 0x31;
s2mm005_write_byte(usbpd_data->i2c, 0x10, &W_DATA[0], 2);
pr_info("%s : alternate mode is reset as start!\n",
__func__);
prev_alternate_mode = ALTERNATE_MODE_START;
} else if (check_is_driver_loaded &&
(prev_alternate_mode == ALTERNATE_MODE_STOP)) {
W_DATA[0] = 0x3;
W_DATA[1] = 0x33;
s2mm005_write_byte(usbpd_data->i2c, 0x10, &W_DATA[0], 2);
pr_info("%s : alternate mode is reset as stop!\n",
__func__);
prev_alternate_mode = ALTERNATE_MODE_STOP;
} else
;
} else {
if (mode & ALTERNATE_MODE_NOT_READY) {
check_is_driver_loaded = 0;
pr_info("%s : alternate mode is not ready!\n", __func__);
} else if (mode & ALTERNATE_MODE_READY) {
check_is_driver_loaded = 1;
pr_info("%s : alternate mode is ready!\n", __func__);
} else
;
if (check_is_driver_loaded) {
if (mode & ALTERNATE_MODE_START) {
W_DATA[0] = 0x3;
W_DATA[1] = 0x31;
s2mm005_write_byte(usbpd_data->i2c, 0x10,
&W_DATA[0], 2);
pr_info("%s : alternate mode is started!\n",
__func__);
prev_alternate_mode = ALTERNATE_MODE_START;
set_enable_powernego(1);
} else if (mode & ALTERNATE_MODE_STOP) {
W_DATA[0] = 0x3;
W_DATA[1] = 0x33;
s2mm005_write_byte(usbpd_data->i2c, 0x10,
&W_DATA[0], 2);
pr_info("%s : alternate mode is stopped!\n",
__func__);
prev_alternate_mode = ALTERNATE_MODE_STOP;
}
}
}
}
void set_clear_discover_mode(void)
{
struct s2mm005_data *usbpd_data;
u8 W_DATA[2];
if (!ccic_device)
return;
usbpd_data = dev_get_drvdata(ccic_device);
if (!usbpd_data)
return;
W_DATA[0] = 0x3;
W_DATA[1] = 0x32;
s2mm005_write_byte(usbpd_data->i2c, 0x10, &W_DATA[0], 2);
pr_info("%s : clear discover mode!\n", __func__);
}
void set_host_turn_on_event(int mode)
{
struct s2mm005_data *usbpd_data;
if (!ccic_device)
return;
usbpd_data = dev_get_drvdata(ccic_device);
if (!usbpd_data)
return;
pr_info("%s : current_set is %d!\n", __func__, mode);
if (mode) {
usbpd_data->host_turn_on_event = 1;
wake_up_interruptible(&usbpd_data->host_turn_on_wait_q);
} else {
usbpd_data->host_turn_on_event = 0;
}
}
static int process_check_accessory(void *data)
{
struct s2mm005_data *usbpd_data = data;
#if defined(CONFIG_USB_HW_PARAM)
struct otg_notify *o_notify = get_otg_notify();
#endif
uint16_t vid = usbpd_data->Vendor_ID;
uint16_t pid = usbpd_data->Product_ID;
uint16_t acc_type = CCIC_DOCK_DETACHED;
/* detect Gear VR */
if (usbpd_data->acc_type == CCIC_DOCK_DETACHED) {
if (vid == SAMSUNG_VENDOR_ID) {
switch (pid) {
/* GearVR: Reserved GearVR PID+6 */
case GEARVR_PRODUCT_ID:
case GEARVR_PRODUCT_ID_1:
case GEARVR_PRODUCT_ID_2:
case GEARVR_PRODUCT_ID_3:
case GEARVR_PRODUCT_ID_4:
case GEARVR_PRODUCT_ID_5:
acc_type = CCIC_DOCK_HMT;
pr_info("%s : Samsung Gear VR connected.\n",
__func__);
#if defined(CONFIG_USB_HW_PARAM)
if (o_notify)
inc_hw_param(o_notify,
USB_CCIC_VR_USE_COUNT);
#endif
break;
case DEXDOCK_PRODUCT_ID:
acc_type = CCIC_DOCK_DEX;
pr_info("%s : Samsung DEX connected.\n",
__func__);
#if defined(CONFIG_USB_HW_PARAM)
if (o_notify)
inc_hw_param(o_notify,
USB_CCIC_DEX_USE_COUNT);
#endif
break;
case DEXPAD_PRODUCT_ID:
acc_type = CCIC_DOCK_DEXPAD;
pr_info("%s : Samsung DEX PADconnected.\n", __func__);
#if defined(CONFIG_USB_HOST_NOTIFY) && defined(CONFIG_USB_HW_PARAM)
if (o_notify)
inc_hw_param(o_notify, USB_CCIC_DEX_USE_COUNT);
#endif
break;
case HDMI_PRODUCT_ID:
acc_type = CCIC_DOCK_HDMI;
pr_info("%s : Samsung HDMI connected.\n",
__func__);
break;
case UVDM_PROTOCOL_ID:
acc_type = CCIC_DOCK_UVDM;
pr_info("%s : Samsung UVDM device connected.\n",
__func__);
default:
acc_type = CCIC_DOCK_NEW;
pr_info("%s : default device connected.\n",
__func__);
break;
}
} else if (vid == SAMSUNG_MPA_VENDOR_ID) {
switch (pid) {
case MPA_PRODUCT_ID:
acc_type = CCIC_DOCK_MPA;
pr_info("%s : Samsung MPA connected.\n",
__func__);
break;
default:
acc_type = CCIC_DOCK_NEW;
pr_info("%s : default device connected.\n",
__func__);
break;
}
}
usbpd_data->acc_type = acc_type;
} else
acc_type = usbpd_data->acc_type;
if (acc_type != CCIC_DOCK_NEW)
ccic_send_dock_intent(acc_type);
ccic_send_dock_uevent(vid, pid, acc_type);
return 1;
}
static int process_discover_identity(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_RX_DIS_ID;
uint8_t ReadMSG[32] = {0,};
int ret = 0;
/* Message Type Definition */
U_DATA_MSG_ID_HEADER_Type *DATA_MSG_ID =
(U_DATA_MSG_ID_HEADER_Type *)&ReadMSG[8];
U_PRODUCT_VDO_Type *DATA_MSG_PRODUCT =
(U_PRODUCT_VDO_Type *)&ReadMSG[16];
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c error.\n", __func__);
return ret;
}
usbpd_data->is_sent_pin_configuration = 0;
usbpd_data->is_samsung_accessory_enter_mode = 0;
usbpd_data->Vendor_ID = DATA_MSG_ID->BITS.USB_Vendor_ID;
usbpd_data->Product_ID = DATA_MSG_PRODUCT->BITS.Product_ID;
usbpd_data->Device_Version = DATA_MSG_PRODUCT->BITS.Device_Version;
dev_info(&i2c->dev, "%s Vendor_ID : 0x%X, Product_ID : 0x%X Device Version 0x%X\n",
__func__, usbpd_data->Vendor_ID, usbpd_data->Product_ID,
usbpd_data->Device_Version);
if (process_check_accessory(usbpd_data))
dev_info(&i2c->dev, "%s : Samsung Accessory Connected.\n",
__func__);
return 0;
}
#define MAX_INPUT_DATA (255)
static int process_discover_svids(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_RX_DIS_SVID;
uint8_t ReadMSG[32] = {0,};
int ret = 0;
int timeleft = 0;
#if defined(CONFIG_USB_HOST_NOTIFY)
struct otg_notify *o_notify = get_otg_notify();
#endif
/* Message Type Definition */
U_VDO1_Type *DATA_MSG_VDO1 = (U_VDO1_Type *)&ReadMSG[8];
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c error.\n", __func__);
return ret;
}
usbpd_data->SVID_0 = DATA_MSG_VDO1->BITS.SVID_0;
usbpd_data->SVID_1 = DATA_MSG_VDO1->BITS.SVID_1;
if (usbpd_data->SVID_0 == TypeC_DP_SUPPORT) {
if (usbpd_data->is_client == CLIENT_ON) {
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_MUIC,
CCIC_NOTIFY_ID_ATTACH, 0, 0, 0);
#if defined(CONFIG_DUAL_ROLE_USB_INTF)
usbpd_data->power_role = DUAL_ROLE_PROP_PR_NONE;
#endif
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_USB, CCIC_NOTIFY_ID_USB,
0, USB_STATUS_NOTIFY_DETACH, 0);
usbpd_data->is_client = CLIENT_OFF;
}
if (usbpd_data->is_host == HOST_OFF) {
/* muic */
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_MUIC,
CCIC_NOTIFY_ID_ATTACH, 1, 1, 0);
/* otg */
usbpd_data->is_host = HOST_ON_BY_RD;
#if defined(CONFIG_DUAL_ROLE_USB_INTF)
if (usbpd_data->func_state & (0x1 << 25)) {
usbpd_data->power_role = DUAL_ROLE_PROP_PR_SRC;
/* add to turn on external 5V */
#if defined(CONFIG_USB_HOST_NOTIFY)
if (!is_blocked(o_notify,
NOTIFY_BLOCK_TYPE_HOST))
#endif
vbus_turn_on_ctrl(1);
} else {
usbpd_data->power_role = DUAL_ROLE_PROP_PR_SNK;
}
#endif
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_USB, CCIC_NOTIFY_ID_USB,
1, USB_STATUS_NOTIFY_ATTACH_DFP, 0);
}
usbpd_data->dp_is_connect = 1;
/*
* If you want to support USB SuperSpeed when you connect
* Display port dongle, You should change dp_hs_connect depend
* on Pin assignment.If DP use 4lane(Pin Assignment C,E,A),
* dp_hs_connect is 1. USB can support HS.If DP use 2lane(Pin Assigment B,D,F), dp_hs_connect is 0. USB
* can support SS
*/
usbpd_data->dp_hs_connect = 1;
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_DP, CCIC_NOTIFY_ID_DP_CONNECT,
CCIC_NOTIFY_ATTACH, usbpd_data->Vendor_ID,
usbpd_data->Product_ID);
#if defined(CONFIG_USB_HW_PARAM)
if (o_notify)
inc_hw_param(o_notify, USB_CCIC_DP_USE_COUNT);
#endif
timeleft = wait_event_interruptible_timeout(
usbpd_data->host_turn_on_wait_q,
usbpd_data->host_turn_on_event,
(usbpd_data->host_turn_on_wait_time)*HZ);
dev_info(&i2c->dev, "%s host turn on wait = %d\n",
__func__, timeleft);
ccic_event_work(usbpd_data, CCIC_NOTIFY_DEV_USB_DP,
CCIC_NOTIFY_ID_USB_DP, usbpd_data->dp_is_connect,
usbpd_data->dp_hs_connect, 0);
}
dev_info(&i2c->dev, "%s SVID_0 : 0x%X, SVID_1 : 0x%X\n",
__func__, usbpd_data->SVID_0, usbpd_data->SVID_1);
return 0;
}
static int process_discover_modes(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_RX_MODE;
uint8_t ReadMSG[32] = {0,};
uint8_t W_DATA[3] = {0,};
int ret = 0;
DIS_MODE_DP_CAPA_Type *pDP_DIS_MODE =
(DIS_MODE_DP_CAPA_Type *)&ReadMSG[0];
U_DATA_MSG_VDM_HEADER_Type *DATA_MSG_VDM =
(U_DATA_MSG_VDM_HEADER_Type *)&ReadMSG[4];
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c error.\n", __func__);
return ret;
}
dev_info(&i2c->dev, "%s : vendor_id = 0x%04x , svid_1 = 0x%04x\n",
__func__, DATA_MSG_VDM->BITS.Standard_Vendor_ID,
usbpd_data->SVID_1);
if (DATA_MSG_VDM->BITS.Standard_Vendor_ID == TypeC_DP_SUPPORT && usbpd_data->SVID_0 == TypeC_DP_SUPPORT) {
/* pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS. */
dev_info(&i2c->dev, "pDP_DIS_MODE->MSG_HEADER.DATA = 0x%08X\n\r", pDP_DIS_MODE->MSG_HEADER.DATA);
dev_info(&i2c->dev, "pDP_DIS_MODE->DATA_MSG_VDM_HEADER.DATA = 0x%08X\n\r", pDP_DIS_MODE->DATA_MSG_VDM_HEADER.DATA);
dev_info(&i2c->dev, "pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.DATA = 0x%08X\n\r", pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.DATA);
if (pDP_DIS_MODE->MSG_HEADER.BITS.Number_of_obj > 1) {
if (((pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Port_Capability == num_UFP_D_Capable)
&& (pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Receptacle_Indication == num_USB_TYPE_C_Receptacle))
|| ((pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Port_Capability == num_DFP_D_Capable)
&& (pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Receptacle_Indication == num_USB_TYPE_C_PLUG))) {
usbpd_data->pin_assignment =
pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.UFP_D_Pin_Assignments;
dev_info(&i2c->dev, "%s support UFP_D 0x%08x\n",
__func__, usbpd_data->pin_assignment);
} else if (((pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Port_Capability == num_DFP_D_Capable)
&& (pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Receptacle_Indication == num_USB_TYPE_C_Receptacle))
|| ((pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Port_Capability == num_UFP_D_Capable)
&& (pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Receptacle_Indication == num_USB_TYPE_C_PLUG))) {
usbpd_data->pin_assignment = pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.DFP_D_Pin_Assignments;
dev_info(&i2c->dev, "%s support DFP_D 0x%08x\n",
__func__, usbpd_data->pin_assignment);
} else if (pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Port_Capability == num_DFP_D_and_UFP_D_Capable) {
if (pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.Receptacle_Indication == num_USB_TYPE_C_PLUG) {
usbpd_data->pin_assignment = pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.DFP_D_Pin_Assignments;
dev_info(&i2c->dev, "%s support DFP_D 0x%08x\n", __func__, usbpd_data->pin_assignment);
} else {
usbpd_data->pin_assignment = pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.UFP_D_Pin_Assignments;
dev_info(&i2c->dev, "%s support UFP_D 0x%08x\n", __func__, usbpd_data->pin_assignment);
}
} else {
usbpd_data->pin_assignment = DP_PIN_ASSIGNMENT_NODE;
dev_info(&i2c->dev, "%s there is not valid object information!!!\n", __func__);
}
}
}
if (DATA_MSG_VDM->BITS.Standard_Vendor_ID == SAMSUNG_VENDOR_ID) {
dev_info(&i2c->dev, "%s : dex mode discover_mode ack status!\n",
__func__);
/* pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.BITS.*/
dev_info(&i2c->dev, "pDP_DIS_MODE->MSG_HEADER.DATA = 0x%08X\n\r", pDP_DIS_MODE->MSG_HEADER.DATA);
dev_info(&i2c->dev, "pDP_DIS_MODE->DATA_MSG_VDM_HEADER.DATA = 0x%08X\n\r", pDP_DIS_MODE->DATA_MSG_VDM_HEADER.DATA);
dev_info(&i2c->dev, "pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.DATA = 0x%08X\n\r", pDP_DIS_MODE->DATA_MSG_MODE_VDO_DP.DATA);
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE; /* Mode Interface */
W_DATA[1] = PD_NEXT_STATE; /* Select mode as pd next state*/
W_DATA[2] = 89; /* PD next state*/
ret = s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 3);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c write error.\n",
__func__);
return ret;
}
}
dev_info(&i2c->dev, "%s\n", __func__);
set_clear_discover_mode();
return 0;
}
static int process_enter_mode(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD;
uint8_t ReadMSG[32] = {0,};
int ret = 0;
U_DATA_MSG_VDM_HEADER_Type *DATA_MSG_VDM =
(U_DATA_MSG_VDM_HEADER_Type *)&ReadMSG[4];
dev_info(&i2c->dev, "%s\n", __func__);
REG_ADD = REG_RX_ENTER_MODE;
/* Message Type Definition */
DATA_MSG_VDM = (U_DATA_MSG_VDM_HEADER_Type *)&ReadMSG[4];
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c read error.\n", __func__);
return ret;
}
if (DATA_MSG_VDM->BITS.VDM_command_type == 1) {
dev_info(&i2c->dev, "%s : EnterMode ACK.\n", __func__);
if (DATA_MSG_VDM->BITS.Standard_Vendor_ID == SAMSUNG_VENDOR_ID) {
usbpd_data->is_samsung_accessory_enter_mode = 1;
dev_info(&i2c->dev, "%s : dex mode enter_mode ack status!\n", __func__);
}
} else
dev_info(&i2c->dev, "%s : EnterMode NAK.\n", __func__);
return 0;
}
static int process_attention(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_RX_DIS_ATTENTION;
uint8_t ReadMSG[32] = {0,};
uint8_t W_DATA[3] = {0,};
int ret = 0;
int i;
int hpd = 0;
int hpdirq = 0;
int pin_assignment = 0;
VDO_MESSAGE_Type *VDO_MSG;
DIS_ATTENTION_MESSAGE_DP_STATUS_Type *DP_ATTENTION;
u8 multi_func_preference = 0;
pr_info("%s\n", __func__);
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c error.\n", __func__);
return ret;
}
if (usbpd_data->SVID_0 == TypeC_DP_SUPPORT) {
DP_ATTENTION = (DIS_ATTENTION_MESSAGE_DP_STATUS_Type *)&ReadMSG[0];
dev_info(&i2c->dev, "%s DP_ATTENTION = 0x%08X\n", __func__,
DP_ATTENTION->DATA_MSG_DP_STATUS.DATA);
if (usbpd_data->is_sent_pin_configuration == 0) {
/* 1. Pin Assignment */
REG_ADD = 0x10;
W_DATA[0] = MODE_INTERFACE; /* Mode Interface */
W_DATA[1] = DP_ALT_MODE_REQ; /* DP Alternate Mode Request */
W_DATA[2] = 0; /* DP Pin Assign select */
multi_func_preference =
DP_ATTENTION->DATA_MSG_DP_STATUS.BITS.Multi_Function_Preference;
if (multi_func_preference == 1) {
if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_D) {
W_DATA[2] = DP_PIN_ASSIGNMENT_D;
pin_assignment = CCIC_NOTIFY_DP_PIN_D;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_B) {
W_DATA[2] = DP_PIN_ASSIGNMENT_B;
pin_assignment = CCIC_NOTIFY_DP_PIN_B;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_F) {
W_DATA[2] = DP_PIN_ASSIGNMENT_F;
pin_assignment = CCIC_NOTIFY_DP_PIN_F;
} else {
pin_assignment = CCIC_NOTIFY_DP_PIN_UNKNOWN;
pr_info("wrong pin assignment value\n");
}
} else {
if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_C) {
W_DATA[2] = DP_PIN_ASSIGNMENT_C;
pin_assignment = CCIC_NOTIFY_DP_PIN_C;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_E) {
W_DATA[2] = DP_PIN_ASSIGNMENT_E;
pin_assignment = CCIC_NOTIFY_DP_PIN_E;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_A) {
W_DATA[2] = DP_PIN_ASSIGNMENT_A;
pin_assignment = CCIC_NOTIFY_DP_PIN_A;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_D) {
W_DATA[2] = DP_PIN_ASSIGNMENT_D;
pin_assignment = CCIC_NOTIFY_DP_PIN_D;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_B) {
W_DATA[2] = DP_PIN_ASSIGNMENT_B;
pin_assignment = CCIC_NOTIFY_DP_PIN_B;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_F) {
W_DATA[2] = DP_PIN_ASSIGNMENT_F;
pin_assignment = CCIC_NOTIFY_DP_PIN_F;
} else {
pin_assignment = CCIC_NOTIFY_DP_PIN_UNKNOWN;
pr_info("wrong pin assignment value\n");
}
}
usbpd_data->dp_selected_pin = pin_assignment;
dev_info(&i2c->dev, "%s multi_func_preference %d %s\n",
__func__, multi_func_preference,
DP_Pin_Assignment_Print[pin_assignment]);
ret = s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 3);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c write error.\n",
__func__);
return ret;
}
usbpd_data->is_sent_pin_configuration = 1;
} else
dev_info(&i2c->dev, "%s : pin configuration is already sent as %s!\n", __func__,
DP_Pin_Assignment_Print[usbpd_data->dp_selected_pin]);
if (DP_ATTENTION->DATA_MSG_DP_STATUS.BITS.HPD_State == 1)
hpd = CCIC_NOTIFY_HIGH;
else if (DP_ATTENTION->DATA_MSG_DP_STATUS.BITS.HPD_State == 0)
hpd = CCIC_NOTIFY_LOW;
if (DP_ATTENTION->DATA_MSG_DP_STATUS.BITS.HPD_Interrupt == 1)
hpdirq = CCIC_NOTIFY_IRQ;
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_DP, CCIC_NOTIFY_ID_DP_HPD,
hpd, hpdirq, 0);
} else {
VDO_MSG = (VDO_MESSAGE_Type *)&ReadMSG[8];
for (i = 0; i < 6; i++)
dev_info(&i2c->dev, "%s : VDO_%d : %d\n", __func__,
i+1, VDO_MSG->VDO[i]);
}
return 0;
}
static int process_dp_status_update(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_RX_DIS_DP_STATUS_UPDATE;
uint8_t ReadMSG[32] = {0,};
uint8_t W_DATA[3] = {0,};
int ret = 0;
int i;
u8 multi_func_preference = 0;
int pin_assignment = 0;
int hpd = 0;
int hpdirq = 0;
VDO_MESSAGE_Type *VDO_MSG;
DP_STATUS_UPDATE_Type *DP_STATUS;
pr_info("%s\n", __func__);
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c error.\n", __func__);
return ret;
}
if (usbpd_data->SVID_0 == TypeC_DP_SUPPORT) {
DP_STATUS = (DP_STATUS_UPDATE_Type *)&ReadMSG[0];
dev_info(&i2c->dev, "%s DP_STATUS_UPDATE = 0x%08X\n", __func__,
DP_STATUS->DATA_DP_STATUS_UPDATE.DATA);
if (DP_STATUS->DATA_DP_STATUS_UPDATE.BITS.Port_Connected == 0x00) {
dev_info(&i2c->dev, "%s : port disconnected!\n",
__func__);
} else {
if (usbpd_data->is_sent_pin_configuration == 0) {
/* 1. Pin Assignment */
REG_ADD = 0x10;
W_DATA[0] = MODE_INTERFACE; /* Mode Interface */
W_DATA[1] = DP_ALT_MODE_REQ; /* DP Alternate Mode Request */
W_DATA[2] = 0; /* DP Pin Assign select */
multi_func_preference =
DP_STATUS->DATA_DP_STATUS_UPDATE.BITS.Multi_Function_Preference;
if (multi_func_preference == 1) {
if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_D) {
W_DATA[2] = DP_PIN_ASSIGNMENT_D;
pin_assignment = CCIC_NOTIFY_DP_PIN_D;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_B) {
W_DATA[2] = DP_PIN_ASSIGNMENT_B;
pin_assignment = CCIC_NOTIFY_DP_PIN_B;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_F) {
W_DATA[2] = DP_PIN_ASSIGNMENT_F;
pin_assignment = CCIC_NOTIFY_DP_PIN_F;
} else {
pr_info("wrong pin assignment value\n");
}
} else {
if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_C) {
W_DATA[2] = DP_PIN_ASSIGNMENT_C;
pin_assignment = CCIC_NOTIFY_DP_PIN_C;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_E) {
W_DATA[2] = DP_PIN_ASSIGNMENT_E;
pin_assignment = CCIC_NOTIFY_DP_PIN_E;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_A) {
W_DATA[2] = DP_PIN_ASSIGNMENT_A;
pin_assignment = CCIC_NOTIFY_DP_PIN_A;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_D) {
W_DATA[2] = DP_PIN_ASSIGNMENT_D;
pin_assignment = CCIC_NOTIFY_DP_PIN_D;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_B) {
W_DATA[2] = DP_PIN_ASSIGNMENT_B;
pin_assignment = CCIC_NOTIFY_DP_PIN_B;
} else if (usbpd_data->pin_assignment & DP_PIN_ASSIGNMENT_F) {
W_DATA[2] = DP_PIN_ASSIGNMENT_F;
pin_assignment = CCIC_NOTIFY_DP_PIN_F;
} else {
pr_info("wrong pin assignment value\n");
}
}
usbpd_data->dp_selected_pin = pin_assignment;
dev_info(&i2c->dev, "%s multi_func_preference %d %s\n", __func__,
multi_func_preference, DP_Pin_Assignment_Print[pin_assignment]);
ret = s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 3);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c write error.\n",
__func__);
return ret;
}
usbpd_data->is_sent_pin_configuration = 1;
} else {
dev_info(&i2c->dev, "%s : pin configuration is already sent as %s!\n", __func__,
DP_Pin_Assignment_Print[usbpd_data->dp_selected_pin]);
}
}
if (DP_STATUS->DATA_DP_STATUS_UPDATE.BITS.HPD_State == 1)
hpd = CCIC_NOTIFY_HIGH;
else if (DP_STATUS->DATA_DP_STATUS_UPDATE.BITS.HPD_State == 0)
hpd = CCIC_NOTIFY_LOW;
if (DP_STATUS->DATA_DP_STATUS_UPDATE.BITS.HPD_Interrupt == 1)
hpdirq = CCIC_NOTIFY_IRQ;
ccic_event_work(usbpd_data,
CCIC_NOTIFY_DEV_DP, CCIC_NOTIFY_ID_DP_HPD,
hpd, hpdirq, 0);
} else {
VDO_MSG = (VDO_MESSAGE_Type *)&ReadMSG[8];
for (i = 0; i < 6; i++)
dev_info(&i2c->dev, "%s : VDO_%d : %d\n", __func__,
i+1, VDO_MSG->VDO[i]);
}
return 0;
}
static int process_dp_configure(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_RX_DIS_DP_CONFIGURE;
uint8_t ReadMSG[32] = {0,};
uint8_t W_DATA[3] = {0,};
int ret = 0;
U_DATA_MSG_VDM_HEADER_Type *DATA_MSG_VDM = (U_DATA_MSG_VDM_HEADER_Type *)&ReadMSG[4];
dev_info(&i2c->dev, "%s\n", __func__);
ret = s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c error.\n", __func__);
return ret;
}
dev_info(&i2c->dev, "%s : vendor_id = 0x%04x , svid_1 = 0x%04x\n",
__func__, DATA_MSG_VDM->BITS.Standard_Vendor_ID, usbpd_data->SVID_1);
if (usbpd_data->SVID_0 == TypeC_DP_SUPPORT) {
ccic_event_work(usbpd_data, CCIC_NOTIFY_DEV_DP,
CCIC_NOTIFY_ID_DP_LINK_CONF,
usbpd_data->dp_selected_pin, 0, 0);
}
if (DATA_MSG_VDM->BITS.Standard_Vendor_ID == TypeC_DP_SUPPORT &&
usbpd_data->SVID_1 == SAMSUNG_VENDOR_ID) {
/* write s2mm005 with TypeC_Dex_SUPPORT SVID */
/* It will start discover mode with that svid */
dev_info(&i2c->dev, "%s : svid 1 is dex station\n", __func__);
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE; /* Mode Interface */
W_DATA[1] = SVID_SELECT; /* SVID select*/
W_DATA[2] = 1; /* SVID select with Samsung vendor ID*/
ret = s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 3);
if (ret < 0) {
dev_err(&i2c->dev, "%s has i2c write error.\n",
__func__);
return ret;
}
}
return 0;
}
static void process_alternate_mode(void *data)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint32_t mode = usbpd_data->alternate_state;
int ret = 0;
#if defined(CONFIG_USB_HOST_NOTIFY)
struct otg_notify *o_notify = get_otg_notify();
#endif
if (mode) {
dev_info(&i2c->dev, "%s, mode : 0x%x\n", __func__, mode);
#if defined(CONFIG_USB_HOST_NOTIFY)
if (o_notify != NULL && is_blocked(o_notify, NOTIFY_BLOCK_TYPE_HOST)) {
dev_info(&i2c->dev, "%s, host is blocked, skip all the alternate mode.\n", __func__);
goto process_error;
}
#endif
if (mode & VDM_DISCOVER_ID)
ret = process_discover_identity(usbpd_data);
if (ret)
goto process_error;
if (mode & VDM_DISCOVER_SVIDS)
ret = process_discover_svids(usbpd_data);
if (ret)
goto process_error;
if (mode & VDM_DISCOVER_MODES)
ret = process_discover_modes(usbpd_data);
if (ret)
goto process_error;
if (mode & VDM_ENTER_MODE)
ret = process_enter_mode(usbpd_data);
if (ret)
goto process_error;
if (mode & VDM_DP_STATUS_UPDATE)
ret = process_dp_status_update(usbpd_data);
if (ret)
goto process_error;
if (mode & VDM_DP_CONFIGURE)
ret = process_dp_configure(usbpd_data);
if (ret)
goto process_error;
if (mode & VDM_ATTENTION)
ret = process_attention(usbpd_data);
process_error:
usbpd_data->alternate_state = 0;
}
}
void send_alternate_message(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_VDM_MSG_REQ;
u8 mode = (u8)cmd;
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[cmd][0]);
s2mm005_write_byte(i2c, REG_ADD, &mode, 1);
}
void receive_alternate_message(void *data, VDM_MSG_IRQ_STATUS_Type *VDM_MSG_IRQ_State)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_Discover_ID) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[1][0]);
usbpd_data->alternate_state |= VDM_DISCOVER_ID;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_Discover_SVIDs) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[2][0]);
usbpd_data->alternate_state |= VDM_DISCOVER_SVIDS;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_Discover_MODEs) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[3][0]);
usbpd_data->alternate_state |= VDM_DISCOVER_MODES;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_Enter_Mode) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[4][0]);
usbpd_data->alternate_state |= VDM_ENTER_MODE;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_Exit_Mode) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[5][0]);
usbpd_data->alternate_state |= VDM_EXIT_MODE;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_Attention) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[6][0]);
usbpd_data->alternate_state |= VDM_ATTENTION;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_DP_Status_Update) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[7][0]);
usbpd_data->alternate_state |= VDM_DP_STATUS_UPDATE;
}
if (VDM_MSG_IRQ_State->BITS.Vdm_Flag_DP_Configure) {
dev_info(&i2c->dev, "%s : %s\n", __func__,
&VDM_MSG_IRQ_State_Print[8][0]);
usbpd_data->alternate_state |= VDM_DP_CONFIGURE;
}
process_alternate_mode(usbpd_data);
}
void set_endian(char *src, char *dest, int size)
{
int i, j;
int loop;
int dest_pos;
int src_pos;
loop = size / SAMSUNGUVDM_ALIGN;
loop += (((size % SAMSUNGUVDM_ALIGN) > 0) ? 1:0);
for (i = 0 ; i < loop ; i++)
for (j = 0 ; j < SAMSUNGUVDM_ALIGN ; j++) {
src_pos = SAMSUNGUVDM_ALIGN * i + j;
dest_pos = SAMSUNGUVDM_ALIGN * i + SAMSUNGUVDM_ALIGN - j - 1;
dest[dest_pos] = src[src_pos];
}
}
int get_checksum(char *data, int start_addr, int size)
{
int checksum = 0;
int i;
for (i = 0; i < size; i++)
checksum += data[start_addr+i];
printk(" %s \n", __func__);
return checksum;
}
int set_uvdmset_count(int size)
{
int ret = 0;
if (size <= SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET)
ret = 1;
else {
ret = ((size-SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET) / SAMSUNGUVDM_MAXDATA_NORMAL_UVDMSET);
if (((size-SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET) % SAMSUNGUVDM_MAXDATA_NORMAL_UVDMSET) == 0)
ret += 1;
else
ret += 2;
}
return ret;
}
void set_msghedader(void *data, int msg_type, int obj_num)
{
MSG_HEADER_Type *MSG_HDR;
uint8_t *SendMSG = (uint8_t *)data;
MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
MSG_HDR->Message_Type = msg_type;
MSG_HDR->Number_of_obj = obj_num;
return;
}
int get_writesize(void *data)
{
MSG_HEADER_Type *MSG_HDR;
uint8_t *SendMSG = (uint8_t *)data;
MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
return ((MSG_HDR->Number_of_obj)*4+4);
}
void set_uvdmheader(void *data, int vendor_id, int vdm_type)
{
U_UNSTRUCTURED_VDM_HEADER_Type *UVDM_HEADER;
U_DATA_MSG_VDM_HEADER_Type *VDM_HEADER;
uint8_t *SendMSG = (uint8_t *)data;
UVDM_HEADER = (U_UNSTRUCTURED_VDM_HEADER_Type *)&SendMSG[4];
UVDM_HEADER->BITS.USB_Vendor_ID = vendor_id;
UVDM_HEADER->BITS.VDM_TYPE = vdm_type;
UVDM_HEADER->BITS.VENDOR_DEFINED_MESSAGE = SEC_UVDM_UNSTRUCTURED_VDM;
VDM_HEADER = (U_DATA_MSG_VDM_HEADER_Type *)&SendMSG[4];
VDM_HEADER->BITS.VDM_command = 4; //s2mm005 only
return;
}
void set_sec_uvdmheader(void *data, int pid, bool data_type, int cmd_type,
bool dir, int total_uvdmset_num, uint8_t received_data)
{
U_SEC_UVDM_HEADER *SEC_VDM_HEADER;
uint8_t *SendMSG = (uint8_t *)data;
SEC_VDM_HEADER = (U_SEC_UVDM_HEADER *)&SendMSG[8];
SEC_VDM_HEADER->BITS.pid = pid;
SEC_VDM_HEADER->BITS.data_type = data_type;
SEC_VDM_HEADER->BITS.command_type = cmd_type;
SEC_VDM_HEADER->BITS.direction = dir;
if (dir == DIR_OUT)
SEC_VDM_HEADER->BITS.total_number_of_uvdm_set = total_uvdmset_num;
if (data_type == TYPE_SHORT)
SEC_VDM_HEADER->BITS.data = received_data;
pr_info("%s pid = %d data_type=%d ,cmd_type =%d,direction= %d, total_num_of_uvdm_set = %d\n",
__func__, SEC_VDM_HEADER->BITS.pid,
SEC_VDM_HEADER->BITS.data_type,
SEC_VDM_HEADER->BITS.command_type,
SEC_VDM_HEADER->BITS.direction,
SEC_VDM_HEADER->BITS.total_number_of_uvdm_set);
return;
}
int get_datasize_of_currentset (int first_set, int remained_data_size)
{
int ret = 0;
if (first_set)
ret = (remained_data_size <= SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET) ? \
remained_data_size : SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET;
else
ret = (remained_data_size <= SAMSUNGUVDM_MAXDATA_NORMAL_UVDMSET) ? \
remained_data_size : SAMSUNGUVDM_MAXDATA_NORMAL_UVDMSET;
return ret;
}
void set_sec_uvdm_txdataheader (void *data, int first_set, int cur_uvdmset,
int total_data_size, int remained_data_size)
{
U_SEC_TX_DATA_HEADER *SEC_TX_DATA_HEADER;
uint8_t *SendMSG = (uint8_t *)data;
if (first_set)
SEC_TX_DATA_HEADER = (U_SEC_TX_DATA_HEADER *)&SendMSG[12];
else
SEC_TX_DATA_HEADER = (U_SEC_TX_DATA_HEADER *)&SendMSG[8];
SEC_TX_DATA_HEADER->BITS.data_size_of_current_set =\
get_datasize_of_currentset(first_set, remained_data_size);
SEC_TX_DATA_HEADER->BITS.total_data_size = total_data_size;
SEC_TX_DATA_HEADER->BITS.order_of_current_uvdm_set = cur_uvdmset;
return;
}
void set_sec_uvdm_txdata_tailer(void *data)
{
U_SEC_TX_DATA_TAILER *SEC_TX_DATA_TAILER;
uint8_t *SendMSG = (uint8_t *)data;
SEC_TX_DATA_TAILER = (U_SEC_TX_DATA_TAILER *)&SendMSG[28];
SEC_TX_DATA_TAILER->BITS.checksum = get_checksum(SendMSG, S2MM005_SECUVDM_START_ADDR,\
SAMSUNGUVDM_CHECKSUM_DATA_COUNT);
return;
}
void set_sec_uvdm_rxdata_header(void *data, int cur_uvdmset_num, int cur_uvdmset_data, int ack)
{
U_SEC_RX_DATA_HEADER *SEC_UVDM_RX_HEADER;
uint8_t *SendMSG = (uint8_t *)data;
SEC_UVDM_RX_HEADER = (U_SEC_RX_DATA_HEADER *)&SendMSG[8];
SEC_UVDM_RX_HEADER->BITS.order_of_current_uvdm_set = cur_uvdmset_num;
SEC_UVDM_RX_HEADER->BITS.received_data_size_of_current_set = cur_uvdmset_data;
SEC_UVDM_RX_HEADER->BITS.result_value = ack;
}
ssize_t send_samsung_unstructured_long_uvdm_message(void *data, void *buf, size_t size)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[2];
uint8_t *SEC_DATA;
/* Valuable to calc the uvdm set and each uvdm set's data size*/
int need_uvdmset_count = 0;
int cur_uvdmset_data = 0;
int cur_uvdmset_num = 0;
int accumulated_data_size = 0;
int remained_data_size = 0;
uint8_t received_data[MAX_INPUT_DATA] = {0,};
int time_left;
int i;
int received_data_index;
int write_size = 0;
/* 1. Calc the receivced data size and determin the uvdm set count and last data of uvdm set. */
set_endian(buf, received_data, size);
need_uvdmset_count = set_uvdmset_count(size);
dev_info(&i2c->dev, "%s need_uvdmset_count = %d \n", __func__, need_uvdmset_count);
usbpd_data->is_in_first_sec_uvdm_req = true;
usbpd_data->is_in_sec_uvdm_out = DIR_OUT;
cur_uvdmset_num = 1;
accumulated_data_size = 0;
remained_data_size = size;
received_data_index = 0;
/* 2. Common : Fill the MSGHeader */
set_msghedader(SendMSG, 15, 7);
/* 3. Common : Fill the UVDMHeader*/
set_uvdmheader(SendMSG, SAMSUNG_VENDOR_ID, 0);
/* 4. Common : Fill the First SEC_VDMHeader*/
if (usbpd_data->is_in_first_sec_uvdm_req)
set_sec_uvdmheader(SendMSG, usbpd_data->Product_ID, TYPE_LONG,\
SEC_UVDM_ININIATOR, DIR_OUT, need_uvdmset_count, 0);
while (cur_uvdmset_num <= need_uvdmset_count) {
cur_uvdmset_data = 0;
time_left = 0;
set_sec_uvdm_txdataheader(SendMSG, usbpd_data->is_in_first_sec_uvdm_req,\
cur_uvdmset_num, size, remained_data_size);
cur_uvdmset_data = get_datasize_of_currentset(usbpd_data->is_in_first_sec_uvdm_req, remained_data_size);
dev_info(&i2c->dev, "%s data_size_of_current_set = %d ,total_data_size = %ld,\
order_of_current_uvdm_set = %d\n", __func__, cur_uvdmset_data, size, cur_uvdmset_num);
/* 6. Common : Fill the DATA */
if (usbpd_data->is_in_first_sec_uvdm_req) {
SEC_DATA = (uint8_t *)&SendMSG[S2MM005_SECUVDM_START_ADDR+8];
for (i = 0; i < SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET; i++)
SEC_DATA[i] = received_data[received_data_index++];
} else {
SEC_DATA = (uint8_t *)&SendMSG[S2MM005_SECUVDM_START_ADDR+4];
for (i = 0; i < SAMSUNGUVDM_MAXDATA_NORMAL_UVDMSET; i++)
SEC_DATA[i] = received_data[received_data_index++];
}
/* 7. Common : Fill the TX_DATA_Tailer */
set_sec_uvdm_txdata_tailer(SendMSG);
/* 8. Send data to PDIC */
REG_ADD = REG_SSM_MSG_SEND;
write_size = get_writesize(SendMSG);
s2mm005_write_byte(i2c, REG_ADD, SendMSG, write_size);
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
/* 9. Wait Response*/
reinit_completion(&usbpd_data->uvdm_out_wait);
time_left =
wait_for_completion_interruptible_timeout(&usbpd_data->uvdm_out_wait,
msecs_to_jiffies(SASMSUNGUVDM_WAIT_MS));
if (time_left <= 0)
return -ETIME;
accumulated_data_size += cur_uvdmset_data;
remained_data_size -= cur_uvdmset_data;
if (usbpd_data->is_in_first_sec_uvdm_req)
usbpd_data->is_in_first_sec_uvdm_req = false;
cur_uvdmset_num++;
}
return size;
}
int check_is_wait_ack_accessroy(int vid, int pid, int svid)
{
int should_wait = true;
if (vid == SAMSUNG_VENDOR_ID && pid == DEXDOCK_PRODUCT_ID && svid == TypeC_DP_SUPPORT) {
pr_info("%s : no need to wait ack response!\n", __func__);
should_wait = false;
}
return should_wait;
}
int send_samsung_unstructured_short_vdm_message(void *data, void *buf, size_t size)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[2];
/* Message Type Definition */
uint8_t received_data = 0;
int time_left;
if ((buf == NULL) || size <= 0) {
dev_info(&i2c->dev, "%s given data is not valid !\n", __func__);
return -EINVAL;
}
if (!usbpd_data->is_samsung_accessory_enter_mode) {
dev_info(&i2c->dev, "%s - samsung_accessory mode is not ready!\n", __func__);
return -ENXIO;
}
/* 1. Calc the receivced data size and determin the uvdm set count and last data of uvdm set. */
received_data = *(char *)buf;
/* 2. Common : Fill the MSGHeader */
set_msghedader(SendMSG, 15, 2);
/* 3. Common : Fill the UVDMHeader*/
set_uvdmheader(SendMSG, SAMSUNG_VENDOR_ID, 0);
/* 4. Common : Fill the First SEC_VDMHeader*/
set_sec_uvdmheader(SendMSG, usbpd_data->Product_ID, TYPE_SHORT,\
SEC_UVDM_ININIATOR, DIR_OUT, 1, received_data);
usbpd_data->is_in_first_sec_uvdm_req = true;
dev_info(&i2c->dev, "%s - process short data!\n", __func__);
s2mm005_write_byte(i2c, REG_ADD, SendMSG, 32);
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
if (check_is_wait_ack_accessroy(usbpd_data->Vendor_ID, usbpd_data->Product_ID, usbpd_data->SVID_0)) {
reinit_completion(&usbpd_data->uvdm_out_wait);
/* Wait Response*/
time_left =
wait_for_completion_interruptible_timeout(&usbpd_data->uvdm_out_wait,
msecs_to_jiffies(SASMSUNGUVDM_WAIT_MS));
if (time_left <= 0) {
usbpd_data->is_in_first_sec_uvdm_req = false;
return -ETIME;
}
}
dev_info(&i2c->dev, "%s - exit : short data transfer complete!\n", __func__);
usbpd_data->is_in_first_sec_uvdm_req = false;
return size;
}
int send_samsung_unstructured_vdm_message(void *data, const char *buf, size_t size)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[2];
/* Message Type Definition */
MSG_HEADER_Type *MSG_HDR;
U_UNSTRUCTURED_VDM_HEADER_Type *UVDM_HEADER;
U_SEC_UNSTRUCTURED_VDM_HEADER_Type *SEND_SEC_VDM_HEADER;
U_SEC_UNSTRUCTURED_VDM_HEADER_Type *RECEIVED_VDM_HEADER;
int received_data;
if ((buf == NULL) || (size < sizeof(U_SEC_UNSTRUCTURED_VDM_HEADER_Type))) {
dev_info(&i2c->dev, "%s given data is not valid !\n", __func__);
return -EINVAL;
}
if (!usbpd_data->is_samsung_accessory_enter_mode) {
dev_info(&i2c->dev, "%s - samsung_accessory mode is not ready!\n", __func__);
return -ENXIO;
}
sscanf(buf, "%d", &received_data);
RECEIVED_VDM_HEADER = (U_SEC_UNSTRUCTURED_VDM_HEADER_Type *)&received_data;
MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
UVDM_HEADER = (U_UNSTRUCTURED_VDM_HEADER_Type *)&SendMSG[4];
SEND_SEC_VDM_HEADER = (U_SEC_UNSTRUCTURED_VDM_HEADER_Type *)&SendMSG[8];
/* process common data */
MSG_HDR->Message_Type = 15; /* send VDM message */
UVDM_HEADER->BITS.USB_Vendor_ID = SAMSUNG_VENDOR_ID; /* VID */
UVDM_HEADER->BITS.VENDOR_DEFINED_MESSAGE = SEC_UVDM_UNSTRUCTURED_VDM;
*SEND_SEC_VDM_HEADER = *RECEIVED_VDM_HEADER;
if (RECEIVED_VDM_HEADER->BITS.DATA_TYPE == SEC_UVDM_SHORT_DATA) {
dev_info(&i2c->dev, "%s - process short data!\n", __func__);
/* process short data */
/* phase 1. fill message header */
MSG_HDR->Number_of_obj = 2; /* VDM Header + 6 VDOs = MAX 7 */
/* phase 2. fill uvdm header (already filled) */
/* phase 3. fill sec uvdm header */
SEND_SEC_VDM_HEADER->BITS.TOTAL_NUMBER_OF_UVDM_SET = 1;
} else {
dev_info(&i2c->dev, "%s - process long data!\n", __func__);
/*
* process long data
* phase 1. fill message header
* phase 2. fill uvdm header
* phase 3. fill sec uvdm header
* phase 4.5.6.7 fill sec data header , data , sec data tail and so on.
*/
}
s2mm005_write_byte(i2c, REG_ADD, SendMSG, 32);
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
if (RECEIVED_VDM_HEADER->BITS.DATA_TYPE == SEC_UVDM_SHORT_DATA)
dev_info(&i2c->dev, "%s - exit : short data transfer complete!\n", __func__);
return 0;
}
void send_unstructured_vdm_message(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[2];
uint32_t message = (uint32_t)cmd;
int i;
/* Message Type Definition */
MSG_HEADER_Type *MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
U_UNSTRUCTURED_VDM_HEADER_Type *DATA_MSG_UVDM = (U_UNSTRUCTURED_VDM_HEADER_Type *)&SendMSG[4];
VDO_MESSAGE_Type *VDO_MSG = (VDO_MESSAGE_Type *)&SendMSG[8];
/* fill message */
MSG_HDR->Message_Type = 15; /* send VDM message */
MSG_HDR->Number_of_obj = 7; /* VDM Header + 6 VDOs = MAX 7 */
DATA_MSG_UVDM->BITS.USB_Vendor_ID = SAMSUNG_VENDOR_ID; /* VID */
for (i = 0; i < 6; i++)
VDO_MSG->VDO[i] = message; /* VD01~VDO6 : Max 24bytes */
s2mm005_write_byte(i2c, REG_ADD, SendMSG, 32);
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
dev_info(&i2c->dev, "%s - message : 0x%x\n", __func__, message);
}
void receive_unstructured_vdm_message(void *data, SSM_MSG_IRQ_STATUS_Type *SSM_MSG_IRQ_State)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_READ;
uint8_t ReadMSG[32] = {0,};
u8 W_DATA[1];
U_SEC_UVDM_RESPONSE_HEADER *SEC_UVDM_RESPONSE_HEADER;
U_SEC_RX_DATA_HEADER *SEC_UVDM_RX_HEADER;
if (usbpd_data->is_in_sec_uvdm_out == DIR_OUT) {
s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 16);
/* first uvdm req for direction out */
if (usbpd_data->is_in_first_sec_uvdm_req) {
SEC_UVDM_RESPONSE_HEADER = (U_SEC_UVDM_RESPONSE_HEADER *)&ReadMSG[8];
if (SEC_UVDM_RESPONSE_HEADER->BITS.data_type == TYPE_LONG) {
if (SEC_UVDM_RESPONSE_HEADER->BITS.command_type == SEC_UVDM_RESPONDER_ACK) {
SEC_UVDM_RX_HEADER = (U_SEC_RX_DATA_HEADER *)&ReadMSG[12];
if (SEC_UVDM_RX_HEADER->BITS.result_value != SEC_UVDM_RESPONDER_ACK) {
dev_err(&i2c->dev, "%s Busy or Nak received.\n", __func__);
}
} else {
dev_err(&i2c->dev, "%s Response type is wrong.\n", __func__);
}
} else {
if (SEC_UVDM_RESPONSE_HEADER->BITS.command_type == SEC_UVDM_RESPONDER_ACK)
dev_info(&i2c->dev, "%s Short packet ack is received\n", __func__);
else {
dev_err(&i2c->dev, "%s Short packet Response type is wrong.\n", __func__);
}
}
/* uvdm req for direction out */
} else {
SEC_UVDM_RX_HEADER = (U_SEC_RX_DATA_HEADER *)&ReadMSG[8];
if (SEC_UVDM_RX_HEADER->BITS.result_value != SEC_UVDM_RESPONDER_ACK) {
dev_err(&i2c->dev, "%s Busy or Nak received.\n", __func__);
}
}
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INT_CLEAR;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 1);
complete(&usbpd_data->uvdm_out_wait);
/* In uvdm req */
} else {
s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
/* first uvdm req for direction in */
if (usbpd_data->is_in_first_sec_uvdm_req) {
SEC_UVDM_RESPONSE_HEADER = (U_SEC_UVDM_RESPONSE_HEADER *)&ReadMSG[8];
dev_info(&i2c->dev, "[jj time]%s : data_type = %d , command_type = %d, direction=%d \n", __func__,
SEC_UVDM_RESPONSE_HEADER->BITS.data_type,
SEC_UVDM_RESPONSE_HEADER->BITS.command_type,
SEC_UVDM_RESPONSE_HEADER->BITS.direction);
/* for long data */
if (SEC_UVDM_RESPONSE_HEADER->BITS.command_type != SEC_UVDM_RESPONDER_ACK) {
dev_info(&i2c->dev, "%s :received nak or busy in response \n", __func__);
return;
}
}
complete(&usbpd_data->uvdm_longpacket_in_wait);
}
}
int samsung_uvdm_ready(void)
{
int uvdm_ready = false;
struct s2mm005_data *usbpd_data;
usbpd_data = dev_get_drvdata(ccic_device);
if (usbpd_data->is_samsung_accessory_enter_mode)
uvdm_ready = true;
pr_info("%s : uvdm ready=%d!\n", __func__, uvdm_ready);
return uvdm_ready;
}
void samsung_uvdm_close(void)
{
struct s2mm005_data *usbpd_data;
pr_info("%s + samsung_uvdm_close success\n", __func__);
usbpd_data = dev_get_drvdata(ccic_device);
complete(&usbpd_data->uvdm_out_wait);
complete(&usbpd_data->uvdm_longpacket_in_wait);
pr_info("%s - samsung_uvdm_close success\n", __func__);
}
ssize_t samsung_uvdm_out_request_message(void *data, size_t size)
{
struct s2mm005_data *usbpd_data;
struct i2c_client *i2c;
ssize_t ret;
if (!ccic_device)
return -ENXIO;
usbpd_data = dev_get_drvdata(ccic_device);
if (!usbpd_data)
return -ENXIO;
i2c = usbpd_data->i2c;
if (i2c == NULL) {
dev_err(&i2c->dev, "%s usbpd_data->i2c is not valid!\n", __func__);
return -EINVAL;
}
if (data == NULL) {
dev_err(&i2c->dev, "%s given data is not valid !\n", __func__);
return -EINVAL;
}
if (size >= SAMSUNGUVDM_MAX_LONGPACKET_SIZE) {
dev_err(&i2c->dev, "%s : size %ld is too big to send data\n", __func__, size);
ret = -EFBIG;
} else if (size <= SAMSUNGUVDM_MAX_SHORTPACKET_SIZE)
ret = send_samsung_unstructured_short_vdm_message(usbpd_data, data, size);
else
ret = send_samsung_unstructured_long_uvdm_message(usbpd_data, data, size);
return ret;
}
int samsung_uvdm_in_request_message(void *data)
{
struct s2mm005_data *usbpd_data;
struct i2c_client *i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
uint8_t ReadMSG[32] = {0,};
u8 W_DATA[2];
uint8_t IN_DATA[MAX_INPUT_DATA] = {0, };
/* Send Request */
/* 1 Message Type Definition */
U_SEC_UVDM_RESPONSE_HEADER *SEC_RES_HEADER;
U_SEC_TX_DATA_HEADER *SEC_UVDM_TX_HEADER;
U_SEC_TX_DATA_TAILER *SEC_UVDM_TX_TAILER;
int cur_uvdmset_data = 0;
int cur_uvdmset_num = 0;
int total_uvdmset_num = 0;
int received_data_size = 0;
int total_received_data_size = 0;
int ack = 0;
int size = 0;
int time_left = 0;
int i;
int write_size = 0;
int cal_checksum = 0;
if (!ccic_device)
return -ENXIO;
usbpd_data = dev_get_drvdata(ccic_device);
if (!usbpd_data)
return -ENXIO;
i2c = usbpd_data->i2c;
if (i2c == NULL) {
dev_err(&i2c->dev, "%s usbpd_data->i2c is not valid!\n", __func__);
return -EINVAL;
}
dev_info(&i2c->dev, "%s\n", __func__);
usbpd_data->is_in_sec_uvdm_out = DIR_IN;
usbpd_data->is_in_first_sec_uvdm_req = true;
/* 2. Common : Fill the MSGHeader */
set_msghedader(SendMSG, 15, 2);
/* 3. Common : Fill the UVDMHeader*/
set_uvdmheader(SendMSG, SAMSUNG_VENDOR_ID, 0);
/* 4. Common : Fill the First SEC_VDMHeader*/
if (usbpd_data->is_in_first_sec_uvdm_req)
set_sec_uvdmheader(SendMSG, usbpd_data->Product_ID, TYPE_LONG,\
SEC_UVDM_ININIATOR, DIR_IN, 0, 0);
/* 5. Send data to PDIC */
write_size = get_writesize(SendMSG);
s2mm005_write_byte(usbpd_data->i2c, REG_ADD, SendMSG, write_size);
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
cur_uvdmset_num = 0;
total_uvdmset_num = 1;
do {
reinit_completion(&usbpd_data->uvdm_longpacket_in_wait);
time_left =
wait_for_completion_interruptible_timeout(&usbpd_data->uvdm_longpacket_in_wait,
msecs_to_jiffies(SASMSUNGUVDM_WAIT_MS));
if (time_left <= 0) {
dev_err(&i2c->dev, "%s timeout\n", __func__);
return -ETIME;
}
/* read data */
REG_ADD = REG_SSM_MSG_READ;
s2mm005_read_byte(i2c, REG_ADD, ReadMSG, 32);
if (usbpd_data->is_in_first_sec_uvdm_req) {
SEC_RES_HEADER = (U_SEC_UVDM_RESPONSE_HEADER *)&ReadMSG[8];
SEC_UVDM_TX_HEADER = (U_SEC_TX_DATA_HEADER *)&ReadMSG[12];
if (SEC_RES_HEADER->BITS.data_type == TYPE_SHORT) {
IN_DATA[received_data_size++] = SEC_RES_HEADER->BITS.data;
return received_data_size;
} else {
/* 1. check the data size received */
size = SEC_UVDM_TX_HEADER->BITS.total_data_size;
cur_uvdmset_data = SEC_UVDM_TX_HEADER->BITS.data_size_of_current_set;
cur_uvdmset_num = SEC_UVDM_TX_HEADER->BITS.order_of_current_uvdm_set;
total_uvdmset_num =
SEC_RES_HEADER->BITS.total_number_of_uvdm_set;
usbpd_data->is_in_first_sec_uvdm_req = false;
/* 2. copy data to buffer */
for (i = 0; i < SAMSUNGUVDM_MAXDATA_FIRST_UVDMSET; i++)
IN_DATA[received_data_size++] = ReadMSG[16+i];
total_received_data_size += cur_uvdmset_data;
usbpd_data->is_in_first_sec_uvdm_req = false;
}
} else {
SEC_UVDM_TX_HEADER = (U_SEC_TX_DATA_HEADER *)&ReadMSG[8];
cur_uvdmset_data = SEC_UVDM_TX_HEADER->BITS.data_size_of_current_set;
cur_uvdmset_num = SEC_UVDM_TX_HEADER->BITS.order_of_current_uvdm_set;
/* 2. copy data to buffer */
for (i = 0 ; i < SAMSUNGUVDM_MAXDATA_NORMAL_UVDMSET ; i++)
IN_DATA[received_data_size++] = ReadMSG[12+i];
total_received_data_size += cur_uvdmset_data;
}
/* 3. Check Checksum */
SEC_UVDM_TX_TAILER = (U_SEC_TX_DATA_TAILER *)&ReadMSG[28];
cal_checksum = get_checksum(ReadMSG, 8, SAMSUNGUVDM_CHECKSUM_DATA_COUNT);
ack = (cal_checksum == SEC_UVDM_TX_TAILER->BITS.checksum) ?
SEC_UVDM_RX_HEADER_ACK : SEC_UVDM_RX_HEADER_NAK;
///* 4. clear IRQ */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INT_CLEAR;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 1);
/* 5. Send Ack */
/* 5-1. Common : Fill the MSGHeader */
set_msghedader(SendMSG, 15, 2);
/* 5-2. Common : Fill the UVDMHeader*/
set_uvdmheader(SendMSG, SAMSUNG_VENDOR_ID, 0);
/* 5-3. Common : Fill the SEC RXHeader */
set_sec_uvdm_rxdata_header(SendMSG, cur_uvdmset_num, cur_uvdmset_data, ack);
/* 5-4. Send data to PDIC */
REG_ADD = REG_SSM_MSG_SEND;
write_size = get_writesize(SendMSG);
s2mm005_write_byte(usbpd_data->i2c, REG_ADD, SendMSG, write_size);
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
} while (cur_uvdmset_num < total_uvdmset_num);
set_endian(IN_DATA, data, size);
return size;
}
void send_dna_audio_unstructured_vdm_message(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[2];
uint32_t message = (uint32_t)cmd;
/* Message Type Definition */
MSG_HEADER_Type *MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
U_UNSTRUCTURED_VDM_HEADER_Type *DATA_MSG_UVDM = (U_UNSTRUCTURED_VDM_HEADER_Type *)&SendMSG[4];
VDO_MESSAGE_Type *VDO_MSG = (VDO_MESSAGE_Type *)&SendMSG[8];
/* fill message */
MSG_HDR->Message_Type = 15; /* send VDM message */
MSG_HDR->Number_of_obj = 7; /* VDM Header + 6 VDOs = MAX 7 */
DATA_MSG_UVDM->BITS.USB_Vendor_ID = SAMSUNG_VENDOR_ID; /* VID */
VDO_MSG->VDO[0] = message;
s2mm005_write_byte(i2c, REG_ADD, SendMSG, 32);
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
dev_info(&i2c->dev, "%s - message : 0x%x\n", __func__, message);
}
void send_dex_fan_unstructured_vdm_message(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_SSM_MSG_SEND;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[2];
uint32_t message = (uint32_t)cmd;
/* Message Type Definitio */
MSG_HEADER_Type *MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
U_UNSTRUCTURED_VDM_HEADER_Type *DATA_MSG_UVDM = (U_UNSTRUCTURED_VDM_HEADER_Type *)&SendMSG[4];
VDO_MESSAGE_Type *VDO_MSG = (VDO_MESSAGE_Type *)&SendMSG[8];
/* fill message */
MSG_HDR->Message_Type = 15; /* send VDM message */
MSG_HDR->Number_of_obj = 2; /* VDM Header + 6 VDOs = MAX 7 */
DATA_MSG_UVDM->BITS.USB_Vendor_ID = SAMSUNG_VENDOR_ID; /* VID */
DATA_MSG_UVDM->BITS.VENDOR_DEFINED_MESSAGE = 1;
VDO_MSG->VDO[0] = message;
s2mm005_write_byte(i2c, REG_ADD, SendMSG, 32);
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = SEL_SSM_MSG_REQ;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
dev_info(&i2c->dev, "%s - message : 0x%x\n", __func__, message);
}
/*
* send_role_swap_message
* cmd 0 : PR_SWAP, cmd 1 : DR_SWAP
*/
void send_role_swap_message(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_I2C_SLV_CMD;
u8 mode = (u8)cmd;
u8 W_DATA[2];
/* send uVDM message */
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = mode ? REQ_DR_SWAP : REQ_PR_SWAP;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 2);
dev_info(&i2c->dev, "%s : sent %s message\n", __func__, mode ? "DR_SWAP" : "PR_SWAP");
}
void send_attention_message(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = REG_TX_DIS_ATTENTION_RESPONSE;
uint8_t SendMSG[32] = {0,};
u8 W_DATA[3];
uint32_t message = (uint32_t)cmd;
int i;
/* Message Type Definition */
MSG_HEADER_Type *MSG_HDR = (MSG_HEADER_Type *)&SendMSG[0];
U_DATA_MSG_VDM_HEADER_Type *DATA_MSG_VDM = (U_DATA_MSG_VDM_HEADER_Type *)&SendMSG[4];
VDO_MESSAGE_Type *VDO_MSG = (VDO_MESSAGE_Type *)&SendMSG[8];
/* fill message */
DATA_MSG_VDM->BITS.VDM_command = 6; /* attention*/
DATA_MSG_VDM->BITS.VDM_Type = 1; /* structured VDM */
DATA_MSG_VDM->BITS.Standard_Vendor_ID = SAMSUNG_VENDOR_ID;
MSG_HDR->Message_Type = 15; /* send VDM message */
MSG_HDR->Number_of_obj = 7; /* VDM Header + 6 VDOs = MAX 7 */
for (i = 0; i < 6; i++)
VDO_MSG->VDO[i] = message; /* VD01~VDO6 : Max 24bytes */
s2mm005_write_byte(i2c, REG_ADD, SendMSG, 32);
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = PD_NEXT_STATE;
W_DATA[2] = 100;
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 3);
dev_info(&i2c->dev, "%s - message : 0x%x\n", __func__, message);
}
void do_alternate_mode_step_by_step(void *data, int cmd)
{
struct s2mm005_data *usbpd_data = data;
struct i2c_client *i2c = usbpd_data->i2c;
uint16_t REG_ADD = 0;
u8 W_DATA[3];
REG_ADD = REG_I2C_SLV_CMD;
W_DATA[0] = MODE_INTERFACE;
W_DATA[1] = PD_NEXT_STATE;
switch (cmd) {
case VDM_DISCOVER_ID:
W_DATA[2] = 80;
break;
case VDM_DISCOVER_SVIDS:
W_DATA[2] = 83;
break;
case VDM_DISCOVER_MODES:
W_DATA[2] = 86;
break;
case VDM_ENTER_MODE:
W_DATA[2] = 89;
break;
case VDM_EXIT_MODE:
W_DATA[2] = 92;
break;
}
s2mm005_write_byte(i2c, REG_ADD, &W_DATA[0], 3);
dev_info(&i2c->dev, "%s\n", __func__);
}
#endif