| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Xin Ji | 7175 | 99.36% | 2 | 18.18% |
| Yang Yingliang | 31 | 0.43% | 3 | 27.27% |
| Dan Carpenter | 11 | 0.15% | 3 | 27.27% |
| Liang He | 2 | 0.03% | 1 | 9.09% |
| Uwe Kleine-König | 2 | 0.03% | 2 | 18.18% |
| Total | 7221 | 11 |
// SPDX-License-Identifier: GPL-2.0-only /* * Driver for Analogix ANX7411 USB Type-C and PD controller * * Copyright(c) 2022, Analogix Semiconductor. All rights reserved. * */ #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of_graph.h> #include <linux/of_platform.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/usb/pd.h> #include <linux/usb/role.h> #include <linux/usb/tcpci.h> #include <linux/usb/typec.h> #include <linux/usb/typec_dp.h> #include <linux/usb/typec_mux.h> #include <linux/workqueue.h> #include <linux/power_supply.h> #define TCPC_ADDRESS1 0x58 #define TCPC_ADDRESS2 0x56 #define TCPC_ADDRESS3 0x54 #define TCPC_ADDRESS4 0x52 #define SPI_ADDRESS1 0x7e #define SPI_ADDRESS2 0x6e #define SPI_ADDRESS3 0x64 #define SPI_ADDRESS4 0x62 struct anx7411_i2c_select { u8 tcpc_address; u8 spi_address; }; #define VID_ANALOGIX 0x1F29 #define PID_ANALOGIX 0x7411 /* TCPC register define */ #define ANALOG_CTRL_10 0xAA #define STATUS_LEN 2 #define ALERT_0 0xCB #define RECEIVED_MSG BIT(7) #define SOFTWARE_INT BIT(6) #define MSG_LEN 32 #define HEADER_LEN 2 #define MSG_HEADER 0x00 #define MSG_TYPE 0x01 #define MSG_RAWDATA 0x02 #define MSG_LEN_MASK 0x1F #define ALERT_1 0xCC #define INTP_POW_ON BIT(7) #define INTP_POW_OFF BIT(6) #define VBUS_THRESHOLD_H 0xDD #define VBUS_THRESHOLD_L 0xDE #define FW_CTRL_0 0xF0 #define UNSTRUCT_VDM_EN BIT(0) #define DELAY_200MS BIT(1) #define VSAFE0 0 #define VSAFE1 BIT(2) #define VSAFE2 BIT(3) #define VSAFE3 (BIT(2) | BIT(3)) #define FRS_EN BIT(7) #define FW_PARAM 0xF1 #define DONGLE_IOP BIT(0) #define FW_CTRL_2 0xF7 #define SINK_CTRL_DIS_FLAG BIT(5) /* SPI register define */ #define OCM_CTRL_0 0x6E #define OCM_RESET BIT(6) #define MAX_VOLTAGE 0xAC #define MAX_POWER 0xAD #define MIN_POWER 0xAE #define REQUEST_VOLTAGE 0xAF #define VOLTAGE_UNIT 100 /* mV per unit */ #define REQUEST_CURRENT 0xB1 #define CURRENT_UNIT 50 /* mA per unit */ #define CMD_SEND_BUF 0xC0 #define CMD_RECV_BUF 0xE0 #define REQ_VOL_20V_IN_100MV 0xC8 #define REQ_CUR_2_25A_IN_50MA 0x2D #define REQ_CUR_3_25A_IN_50MA 0x41 #define DEF_5V 5000 #define DEF_1_5A 1500 #define LOBYTE(w) ((u8)((w) & 0xFF)) #define HIBYTE(w) ((u8)(((u16)(w) >> 8) & 0xFF)) enum anx7411_typec_message_type { TYPE_SRC_CAP = 0x00, TYPE_SNK_CAP = 0x01, TYPE_SNK_IDENTITY = 0x02, TYPE_SVID = 0x03, TYPE_SET_SNK_DP_CAP = 0x08, TYPE_PSWAP_REQ = 0x10, TYPE_DSWAP_REQ = 0x11, TYPE_VDM = 0x14, TYPE_OBJ_REQ = 0x16, TYPE_DP_ALT_ENTER = 0x19, TYPE_DP_DISCOVER_MODES_INFO = 0x27, TYPE_GET_DP_CONFIG = 0x29, TYPE_DP_CONFIGURE = 0x2A, TYPE_GET_DP_DISCOVER_MODES_INFO = 0x2E, TYPE_GET_DP_ALT_ENTER = 0x2F, }; #define FW_CTRL_1 0xB2 #define AUTO_PD_EN BIT(1) #define TRYSRC_EN BIT(2) #define TRYSNK_EN BIT(3) #define FORCE_SEND_RDO BIT(6) #define FW_VER 0xB4 #define FW_SUBVER 0xB5 #define INT_MASK 0xB6 #define INT_STS 0xB7 #define OCM_BOOT_UP BIT(0) #define OC_OV_EVENT BIT(1) #define VCONN_CHANGE BIT(2) #define VBUS_CHANGE BIT(3) #define CC_STATUS_CHANGE BIT(4) #define DATA_ROLE_CHANGE BIT(5) #define PR_CONSUMER_GOT_POWER BIT(6) #define HPD_STATUS_CHANGE BIT(7) #define SYSTEM_STSTUS 0xB8 /* 0: SINK off; 1: SINK on */ #define SINK_STATUS BIT(1) /* 0: VCONN off; 1: VCONN on*/ #define VCONN_STATUS BIT(2) /* 0: vbus off; 1: vbus on*/ #define VBUS_STATUS BIT(3) /* 1: host; 0:device*/ #define DATA_ROLE BIT(5) /* 0: Chunking; 1: Unchunked*/ #define SUPPORT_UNCHUNKING BIT(6) /* 0: HPD low; 1: HPD high*/ #define HPD_STATUS BIT(7) #define DATA_DFP 1 #define DATA_UFP 2 #define POWER_SOURCE 1 #define POWER_SINK 2 #define CC_STATUS 0xB9 #define CC1_RD BIT(0) #define CC2_RD BIT(4) #define CC1_RA BIT(1) #define CC2_RA BIT(5) #define CC1_RD BIT(0) #define CC1_RP(cc) (((cc) >> 2) & 0x03) #define CC2_RP(cc) (((cc) >> 6) & 0x03) #define PD_REV_INIT 0xBA #define PD_EXT_MSG_CTRL 0xBB #define SRC_CAP_EXT_REPLY BIT(0) #define MANUFACTURER_INFO_REPLY BIT(1) #define BATTERY_STS_REPLY BIT(2) #define BATTERY_CAP_REPLY BIT(3) #define ALERT_REPLY BIT(4) #define STATUS_REPLY BIT(5) #define PPS_STATUS_REPLY BIT(6) #define SNK_CAP_EXT_REPLY BIT(7) #define NO_CONNECT 0x00 #define USB3_1_CONNECTED 0x01 #define DP_ALT_4LANES 0x02 #define USB3_1_DP_2LANES 0x03 #define CC1_CONNECTED 0x01 #define CC2_CONNECTED 0x02 #define SELECT_PIN_ASSIGMENT_C 0x04 #define SELECT_PIN_ASSIGMENT_D 0x08 #define SELECT_PIN_ASSIGMENT_E 0x10 #define SELECT_PIN_ASSIGMENT_U 0x00 #define REDRIVER_ADDRESS 0x20 #define REDRIVER_OFFSET 0x00 #define DP_SVID 0xFF01 #define VDM_ACK 0x40 #define VDM_CMD_RES 0x00 #define VDM_CMD_DIS_ID 0x01 #define VDM_CMD_DIS_SVID 0x02 #define VDM_CMD_DIS_MOD 0x03 #define VDM_CMD_ENTER_MODE 0x04 #define VDM_CMD_EXIT_MODE 0x05 #define VDM_CMD_ATTENTION 0x06 #define VDM_CMD_GET_STS 0x10 #define VDM_CMD_AND_ACK_MASK 0x5F #define MAX_ALTMODE 2 #define HAS_SOURCE_CAP BIT(0) #define HAS_SINK_CAP BIT(1) #define HAS_SINK_WATT BIT(2) enum anx7411_psy_state { /* copy from drivers/usb/typec/tcpm */ ANX7411_PSY_OFFLINE = 0, ANX7411_PSY_FIXED_ONLINE, /* private */ /* PD keep in, but disconnct power to bq25700, * this state can be active when higher capacity adapter plug in, * and change to ONLINE state when higher capacity adapter plug out */ ANX7411_PSY_HANG = 0xff, }; struct typec_params { int request_current; /* ma */ int request_voltage; /* mv */ int cc_connect; int cc_orientation_valid; int cc_status; int data_role; int power_role; int vconn_role; int dp_altmode_enter; int cust_altmode_enter; struct usb_role_switch *role_sw; struct typec_port *port; struct typec_partner *partner; struct typec_mux_dev *typec_mux; struct typec_switch_dev *typec_switch; struct typec_altmode *amode[MAX_ALTMODE]; struct typec_altmode *port_amode[MAX_ALTMODE]; struct typec_displayport_data data; int pin_assignment; struct typec_capability caps; u32 src_pdo[PDO_MAX_OBJECTS]; u32 sink_pdo[PDO_MAX_OBJECTS]; u8 caps_flags; u8 src_pdo_nr; u8 sink_pdo_nr; u8 sink_watt; u8 sink_voltage; }; #define MAX_BUF_LEN 30 struct fw_msg { u8 msg_len; u8 msg_type; u8 buf[MAX_BUF_LEN]; } __packed; struct anx7411_data { int fw_version; int fw_subversion; struct i2c_client *tcpc_client; struct i2c_client *spi_client; struct fw_msg send_msg; struct fw_msg recv_msg; struct gpio_desc *intp_gpiod; struct fwnode_handle *connector_fwnode; struct typec_params typec; int intp_irq; struct work_struct work; struct workqueue_struct *workqueue; /* Lock for interrupt work queue */ struct mutex lock; enum anx7411_psy_state psy_online; enum power_supply_usb_type usb_type; struct power_supply *psy; struct power_supply_desc psy_desc; struct device *dev; }; static u8 snk_identity[] = { LOBYTE(VID_ANALOGIX), HIBYTE(VID_ANALOGIX), 0x00, 0x82, /* snk_id_hdr */ 0x00, 0x00, 0x00, 0x00, /* snk_cert */ 0x00, 0x00, LOBYTE(PID_ANALOGIX), HIBYTE(PID_ANALOGIX), /* 5snk_ama */ }; static u8 dp_caps[4] = {0xC6, 0x00, 0x00, 0x00}; static int anx7411_reg_read(struct i2c_client *client, u8 reg_addr) { return i2c_smbus_read_byte_data(client, reg_addr); } static int anx7411_reg_block_read(struct i2c_client *client, u8 reg_addr, u8 len, u8 *buf) { return i2c_smbus_read_i2c_block_data(client, reg_addr, len, buf); } static int anx7411_reg_write(struct i2c_client *client, u8 reg_addr, u8 reg_val) { return i2c_smbus_write_byte_data(client, reg_addr, reg_val); } static int anx7411_reg_block_write(struct i2c_client *client, u8 reg_addr, u8 len, u8 *buf) { return i2c_smbus_write_i2c_block_data(client, reg_addr, len, buf); } static struct anx7411_i2c_select anx7411_i2c_addr[] = { {TCPC_ADDRESS1, SPI_ADDRESS1}, {TCPC_ADDRESS2, SPI_ADDRESS2}, {TCPC_ADDRESS3, SPI_ADDRESS3}, {TCPC_ADDRESS4, SPI_ADDRESS4}, }; static int anx7411_detect_power_mode(struct anx7411_data *ctx) { int ret; int mode; ret = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT); if (ret < 0) return ret; ctx->typec.request_current = ret * CURRENT_UNIT; /* 50ma per unit */ ret = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE); if (ret < 0) return ret; ctx->typec.request_voltage = ret * VOLTAGE_UNIT; /* 100mv per unit */ if (ctx->psy_online == ANX7411_PSY_OFFLINE) { ctx->psy_online = ANX7411_PSY_FIXED_ONLINE; ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD; power_supply_changed(ctx->psy); } if (!ctx->typec.cc_orientation_valid) return 0; if (ctx->typec.cc_connect == CC1_CONNECTED) mode = CC1_RP(ctx->typec.cc_status); else mode = CC2_RP(ctx->typec.cc_status); if (mode) { typec_set_pwr_opmode(ctx->typec.port, mode - 1); return 0; } typec_set_pwr_opmode(ctx->typec.port, TYPEC_PWR_MODE_PD); return 0; } static int anx7411_register_partner(struct anx7411_data *ctx, int pd, int accessory) { struct typec_partner_desc desc; struct typec_partner *partner; if (ctx->typec.partner) return 0; desc.usb_pd = pd; desc.accessory = accessory; desc.identity = NULL; partner = typec_register_partner(ctx->typec.port, &desc); if (IS_ERR(partner)) return PTR_ERR(partner); ctx->typec.partner = partner; return 0; } static int anx7411_detect_cc_orientation(struct anx7411_data *ctx) { struct device *dev = &ctx->spi_client->dev; int ret; int cc1_rd, cc2_rd; int cc1_ra, cc2_ra; int cc1_rp, cc2_rp; ret = anx7411_reg_read(ctx->spi_client, CC_STATUS); if (ret < 0) return ret; ctx->typec.cc_status = ret; cc1_rd = ret & CC1_RD ? 1 : 0; cc2_rd = ret & CC2_RD ? 1 : 0; cc1_ra = ret & CC1_RA ? 1 : 0; cc2_ra = ret & CC2_RA ? 1 : 0; cc1_rp = CC1_RP(ret); cc2_rp = CC2_RP(ret); /* Debug cable, nothing to do */ if (cc1_rd && cc2_rd) { ctx->typec.cc_orientation_valid = 0; return anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_DEBUG); } if (cc1_ra && cc2_ra) { ctx->typec.cc_orientation_valid = 0; return anx7411_register_partner(ctx, 0, TYPEC_ACCESSORY_AUDIO); } ctx->typec.cc_orientation_valid = 1; ret = anx7411_register_partner(ctx, 1, TYPEC_ACCESSORY_NONE); if (ret) { dev_err(dev, "register partner\n"); return ret; } if (cc1_rd || cc1_rp) { typec_set_orientation(ctx->typec.port, TYPEC_ORIENTATION_NORMAL); ctx->typec.cc_connect = CC1_CONNECTED; } if (cc2_rd || cc2_rp) { typec_set_orientation(ctx->typec.port, TYPEC_ORIENTATION_REVERSE); ctx->typec.cc_connect = CC2_CONNECTED; } return 0; } static int anx7411_set_mux(struct anx7411_data *ctx, int pin_assignment) { int mode = TYPEC_STATE_SAFE; switch (pin_assignment) { case SELECT_PIN_ASSIGMENT_U: /* default 4 line USB 3.1 */ mode = TYPEC_STATE_MODAL; break; case SELECT_PIN_ASSIGMENT_C: case SELECT_PIN_ASSIGMENT_E: /* 4 line DP */ mode = TYPEC_STATE_SAFE; break; case SELECT_PIN_ASSIGMENT_D: /* 2 line DP, 2 line USB */ mode = TYPEC_MODE_USB3; break; default: mode = TYPEC_STATE_SAFE; break; } ctx->typec.pin_assignment = pin_assignment; return typec_set_mode(ctx->typec.port, mode); } static int anx7411_set_usb_role(struct anx7411_data *ctx, enum usb_role role) { if (!ctx->typec.role_sw) return 0; return usb_role_switch_set_role(ctx->typec.role_sw, role); } static int anx7411_data_role_detect(struct anx7411_data *ctx) { int ret; ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS); if (ret < 0) return ret; ctx->typec.data_role = (ret & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE; ctx->typec.vconn_role = (ret & VCONN_STATUS) ? TYPEC_SOURCE : TYPEC_SINK; typec_set_data_role(ctx->typec.port, ctx->typec.data_role); typec_set_vconn_role(ctx->typec.port, ctx->typec.vconn_role); if (ctx->typec.data_role == TYPEC_HOST) return anx7411_set_usb_role(ctx, USB_ROLE_HOST); return anx7411_set_usb_role(ctx, USB_ROLE_DEVICE); } static int anx7411_power_role_detect(struct anx7411_data *ctx) { int ret; ret = anx7411_reg_read(ctx->spi_client, SYSTEM_STSTUS); if (ret < 0) return ret; ctx->typec.power_role = (ret & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE; if (ctx->typec.power_role == TYPEC_SOURCE) { ctx->typec.request_current = DEF_1_5A; ctx->typec.request_voltage = DEF_5V; } typec_set_pwr_role(ctx->typec.port, ctx->typec.power_role); return 0; } static int anx7411_cc_status_detect(struct anx7411_data *ctx) { anx7411_detect_cc_orientation(ctx); anx7411_detect_power_mode(ctx); return 0; } static void anx7411_partner_unregister_altmode(struct anx7411_data *ctx) { int i; ctx->typec.dp_altmode_enter = 0; ctx->typec.cust_altmode_enter = 0; for (i = 0; i < MAX_ALTMODE; i++) if (ctx->typec.amode[i]) { typec_unregister_altmode(ctx->typec.amode[i]); ctx->typec.amode[i] = NULL; } ctx->typec.pin_assignment = 0; } static int anx7411_typec_register_altmode(struct anx7411_data *ctx, int svid, int vdo) { struct device *dev = &ctx->spi_client->dev; struct typec_altmode_desc desc; int err; int i; desc.svid = svid; desc.vdo = vdo; for (i = 0; i < MAX_ALTMODE; i++) if (!ctx->typec.amode[i]) break; desc.mode = i + 1; /* start with 1 */ if (i >= MAX_ALTMODE) { dev_err(dev, "no altmode space for registering\n"); return -ENOMEM; } ctx->typec.amode[i] = typec_partner_register_altmode(ctx->typec.partner, &desc); if (IS_ERR(ctx->typec.amode[i])) { dev_err(dev, "failed to register altmode\n"); err = PTR_ERR(ctx->typec.amode[i]); ctx->typec.amode[i] = NULL; return err; } return 0; } static void anx7411_unregister_partner(struct anx7411_data *ctx) { if (ctx->typec.partner) { typec_unregister_partner(ctx->typec.partner); ctx->typec.partner = NULL; } } static int anx7411_update_altmode(struct anx7411_data *ctx, int svid) { int i; if (svid == DP_SVID) ctx->typec.dp_altmode_enter = 1; else ctx->typec.cust_altmode_enter = 1; for (i = 0; i < MAX_ALTMODE; i++) { if (!ctx->typec.amode[i]) continue; if (ctx->typec.amode[i]->svid == svid) { typec_altmode_update_active(ctx->typec.amode[i], true); typec_altmode_notify(ctx->typec.amode[i], ctx->typec.pin_assignment, &ctx->typec.data); break; } } return 0; } static int anx7411_register_altmode(struct anx7411_data *ctx, bool dp_altmode, u8 *buf) { int ret; int svid; int mid; if (!ctx->typec.partner) return 0; svid = DP_SVID; if (dp_altmode) { mid = buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24); return anx7411_typec_register_altmode(ctx, svid, mid); } svid = (buf[3] << 8) | buf[2]; if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_ENTER_MODE)) return anx7411_update_altmode(ctx, svid); if ((buf[0] & VDM_CMD_AND_ACK_MASK) != (VDM_ACK | VDM_CMD_DIS_MOD)) return 0; mid = buf[4] | (buf[5] << 8) | (buf[6] << 16) | (buf[7] << 24); ret = anx7411_typec_register_altmode(ctx, svid, mid); if (ctx->typec.cust_altmode_enter) ret |= anx7411_update_altmode(ctx, svid); return ret; } static int anx7411_parse_cmd(struct anx7411_data *ctx, u8 type, u8 *buf, u8 len) { struct device *dev = &ctx->spi_client->dev; u8 cur_50ma, vol_100mv; switch (type) { case TYPE_SRC_CAP: cur_50ma = anx7411_reg_read(ctx->spi_client, REQUEST_CURRENT); vol_100mv = anx7411_reg_read(ctx->spi_client, REQUEST_VOLTAGE); ctx->typec.request_voltage = vol_100mv * VOLTAGE_UNIT; ctx->typec.request_current = cur_50ma * CURRENT_UNIT; ctx->psy_online = ANX7411_PSY_FIXED_ONLINE; ctx->usb_type = POWER_SUPPLY_USB_TYPE_PD; power_supply_changed(ctx->psy); break; case TYPE_SNK_CAP: break; case TYPE_SVID: break; case TYPE_SNK_IDENTITY: break; case TYPE_GET_DP_ALT_ENTER: /* DP alt mode enter success */ if (buf[0]) anx7411_update_altmode(ctx, DP_SVID); break; case TYPE_DP_ALT_ENTER: /* Update DP altmode */ anx7411_update_altmode(ctx, DP_SVID); break; case TYPE_OBJ_REQ: anx7411_detect_power_mode(ctx); break; case TYPE_DP_CONFIGURE: anx7411_set_mux(ctx, buf[1]); break; case TYPE_DP_DISCOVER_MODES_INFO: /* Make sure discover modes valid */ if (buf[0] | buf[1]) /* Register DP Altmode */ anx7411_register_altmode(ctx, 1, buf); break; case TYPE_VDM: /* Register other altmode */ anx7411_register_altmode(ctx, 0, buf); break; default: dev_err(dev, "ignore message(0x%.02x).\n", type); break; } return 0; } static u8 checksum(struct device *dev, u8 *buf, u8 len) { u8 ret = 0; u8 i; for (i = 0; i < len; i++) ret += buf[i]; return ret; } static int anx7411_read_msg_ctrl_status(struct i2c_client *client) { return anx7411_reg_read(client, CMD_SEND_BUF); } static int anx7411_wait_msg_empty(struct i2c_client *client) { int val; return readx_poll_timeout(anx7411_read_msg_ctrl_status, client, val, (val < 0) || (val == 0), 2000, 2000 * 150); } static int anx7411_send_msg(struct anx7411_data *ctx, u8 type, u8 *buf, u8 size) { struct device *dev = &ctx->spi_client->dev; struct fw_msg *msg = &ctx->send_msg; u8 crc; int ret; size = min_t(u8, size, (u8)MAX_BUF_LEN); memcpy(msg->buf, buf, size); msg->msg_type = type; /* msg len equals buffer length + msg_type */ msg->msg_len = size + 1; /* Do CRC check for all buffer data and msg_len and msg_type */ crc = checksum(dev, (u8 *)msg, size + HEADER_LEN); msg->buf[size] = 0 - crc; ret = anx7411_wait_msg_empty(ctx->spi_client); if (ret) return ret; ret = anx7411_reg_block_write(ctx->spi_client, CMD_SEND_BUF + 1, size + HEADER_LEN, &msg->msg_type); ret |= anx7411_reg_write(ctx->spi_client, CMD_SEND_BUF, msg->msg_len); return ret; } static int anx7411_process_cmd(struct anx7411_data *ctx) { struct device *dev = &ctx->spi_client->dev; struct fw_msg *msg = &ctx->recv_msg; u8 len; u8 crc; int ret; /* Read message from firmware */ ret = anx7411_reg_block_read(ctx->spi_client, CMD_RECV_BUF, MSG_LEN, (u8 *)msg); if (ret < 0) return 0; if (!msg->msg_len) return 0; ret = anx7411_reg_write(ctx->spi_client, CMD_RECV_BUF, 0); if (ret) return ret; len = msg->msg_len & MSG_LEN_MASK; crc = checksum(dev, (u8 *)msg, len + HEADER_LEN); if (crc) { dev_err(dev, "message error crc(0x%.02x)\n", crc); return -ERANGE; } return anx7411_parse_cmd(ctx, msg->msg_type, msg->buf, len - 1); } static void anx7411_translate_payload(struct device *dev, __le32 *payload, u32 *pdo, int nr, const char *type) { int i; if (nr > PDO_MAX_OBJECTS) { dev_err(dev, "nr(%d) exceed PDO_MAX_OBJECTS(%d)\n", nr, PDO_MAX_OBJECTS); return; } for (i = 0; i < nr; i++) payload[i] = cpu_to_le32(pdo[i]); } static int anx7411_config(struct anx7411_data *ctx) { struct device *dev = &ctx->spi_client->dev; struct typec_params *typecp = &ctx->typec; __le32 payload[PDO_MAX_OBJECTS]; int ret; /* Config PD FW work under PD 2.0 */ ret = anx7411_reg_write(ctx->spi_client, PD_REV_INIT, PD_REV20); ret |= anx7411_reg_write(ctx->tcpc_client, FW_CTRL_0, UNSTRUCT_VDM_EN | DELAY_200MS | VSAFE1 | FRS_EN); ret |= anx7411_reg_write(ctx->spi_client, FW_CTRL_1, AUTO_PD_EN | FORCE_SEND_RDO); /* Set VBUS current threshold */ ret |= anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_H, 0xff); ret |= anx7411_reg_write(ctx->tcpc_client, VBUS_THRESHOLD_L, 0x03); /* Fix dongle compatible issue */ ret |= anx7411_reg_write(ctx->tcpc_client, FW_PARAM, anx7411_reg_read(ctx->tcpc_client, FW_PARAM) | DONGLE_IOP); ret |= anx7411_reg_write(ctx->spi_client, INT_MASK, 0); ret |= anx7411_reg_write(ctx->spi_client, PD_EXT_MSG_CTRL, 0xFF); if (ret) return ret; if (typecp->caps_flags & HAS_SOURCE_CAP) { anx7411_translate_payload(dev, payload, typecp->src_pdo, typecp->src_pdo_nr, "source"); anx7411_send_msg(ctx, TYPE_SRC_CAP, (u8 *)&payload, typecp->src_pdo_nr * 4); anx7411_send_msg(ctx, TYPE_SNK_IDENTITY, snk_identity, sizeof(snk_identity)); anx7411_send_msg(ctx, TYPE_SET_SNK_DP_CAP, dp_caps, sizeof(dp_caps)); } if (typecp->caps_flags & HAS_SINK_CAP) { anx7411_translate_payload(dev, payload, typecp->sink_pdo, typecp->sink_pdo_nr, "sink"); anx7411_send_msg(ctx, TYPE_SNK_CAP, (u8 *)&payload, typecp->sink_pdo_nr * 4); } if (typecp->caps_flags & HAS_SINK_WATT) { if (typecp->sink_watt) { ret |= anx7411_reg_write(ctx->spi_client, MAX_POWER, typecp->sink_watt); /* Set min power to 1W */ ret |= anx7411_reg_write(ctx->spi_client, MIN_POWER, 2); } if (typecp->sink_voltage) ret |= anx7411_reg_write(ctx->spi_client, MAX_VOLTAGE, typecp->sink_voltage); if (ret) return ret; } if (!typecp->caps_flags) usleep_range(5000, 6000); ctx->fw_version = anx7411_reg_read(ctx->spi_client, FW_VER); ctx->fw_subversion = anx7411_reg_read(ctx->spi_client, FW_SUBVER); return 0; } static void anx7411_chip_standby(struct anx7411_data *ctx) { int ret; u8 cc1, cc2; struct device *dev = &ctx->spi_client->dev; ret = anx7411_reg_write(ctx->spi_client, OCM_CTRL_0, anx7411_reg_read(ctx->spi_client, OCM_CTRL_0) | OCM_RESET); ret |= anx7411_reg_write(ctx->tcpc_client, ANALOG_CTRL_10, 0x80); /* Set TCPC to RD and DRP enable */ cc1 = TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT; cc2 = TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT; ret |= anx7411_reg_write(ctx->tcpc_client, TCPC_ROLE_CTRL, TCPC_ROLE_CTRL_DRP | cc1 | cc2); /* Send DRP toggle command */ ret |= anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, TCPC_CMD_LOOK4CONNECTION); /* Send TCPC enter standby command */ ret |= anx7411_reg_write(ctx->tcpc_client, TCPC_COMMAND, TCPC_CMD_I2C_IDLE); if (ret) dev_err(dev, "Chip standby failed\n"); } static void anx7411_work_func(struct work_struct *work) { int ret; u8 buf[STATUS_LEN]; u8 int_change; /* Interrupt change */ u8 int_status; /* Firmware status update */ u8 alert0, alert1; /* Interrupt alert source */ struct anx7411_data *ctx = container_of(work, struct anx7411_data, work); struct device *dev = &ctx->spi_client->dev; mutex_lock(&ctx->lock); /* Read interrupt change status */ ret = anx7411_reg_block_read(ctx->spi_client, INT_STS, STATUS_LEN, buf); if (ret < 0) { /* Power standby mode, just return */ goto unlock; } int_change = buf[0]; int_status = buf[1]; /* Read alert register */ ret = anx7411_reg_block_read(ctx->tcpc_client, ALERT_0, STATUS_LEN, buf); if (ret < 0) goto unlock; alert0 = buf[0]; alert1 = buf[1]; /* Clear interrupt and alert status */ ret = anx7411_reg_write(ctx->spi_client, INT_STS, 0); ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_0, alert0); ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_1, alert1); if (ret) goto unlock; if (alert1 & INTP_POW_OFF) { anx7411_partner_unregister_altmode(ctx); if (anx7411_set_usb_role(ctx, USB_ROLE_NONE)) dev_err(dev, "Set usb role\n"); anx7411_unregister_partner(ctx); ctx->psy_online = ANX7411_PSY_OFFLINE; ctx->usb_type = POWER_SUPPLY_USB_TYPE_C; ctx->typec.request_voltage = 0; ctx->typec.request_current = 0; power_supply_changed(ctx->psy); anx7411_chip_standby(ctx); goto unlock; } if ((alert0 & SOFTWARE_INT) && (int_change & OCM_BOOT_UP)) { if (anx7411_config(ctx)) dev_err(dev, "Config failed\n"); if (anx7411_data_role_detect(ctx)) dev_err(dev, "set PD data role\n"); if (anx7411_power_role_detect(ctx)) dev_err(dev, "set PD power role\n"); anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C); } if (alert0 & RECEIVED_MSG) anx7411_process_cmd(ctx); ret = (int_status & DATA_ROLE) ? TYPEC_HOST : TYPEC_DEVICE; if (ctx->typec.data_role != ret) if (anx7411_data_role_detect(ctx)) dev_err(dev, "set PD data role\n"); ret = (int_status & SINK_STATUS) ? TYPEC_SINK : TYPEC_SOURCE; if (ctx->typec.power_role != ret) if (anx7411_power_role_detect(ctx)) dev_err(dev, "set PD power role\n"); if ((alert0 & SOFTWARE_INT) && (int_change & CC_STATUS_CHANGE)) anx7411_cc_status_detect(ctx); unlock: mutex_unlock(&ctx->lock); } static irqreturn_t anx7411_intr_isr(int irq, void *data) { struct anx7411_data *ctx = (struct anx7411_data *)data; queue_work(ctx->workqueue, &ctx->work); return IRQ_HANDLED; } static int anx7411_register_i2c_dummy_clients(struct anx7411_data *ctx, struct i2c_client *client) { int i; u8 spi_addr; for (i = 0; i < ARRAY_SIZE(anx7411_i2c_addr); i++) { if (client->addr == (anx7411_i2c_addr[i].tcpc_address >> 1)) { spi_addr = anx7411_i2c_addr[i].spi_address >> 1; ctx->spi_client = i2c_new_dummy_device(client->adapter, spi_addr); if (!IS_ERR(ctx->spi_client)) return 0; } } dev_err(&client->dev, "unable to get SPI slave\n"); return -ENOMEM; } static void anx7411_port_unregister_altmodes(struct typec_altmode **adev) { int i; for (i = 0; i < MAX_ALTMODE; i++) if (adev[i]) { typec_unregister_altmode(adev[i]); adev[i] = NULL; } } static int anx7411_usb_mux_set(struct typec_mux_dev *mux, struct typec_mux_state *state) { struct anx7411_data *ctx = typec_mux_get_drvdata(mux); struct device *dev = &ctx->spi_client->dev; int has_dp; has_dp = (state->alt && state->alt->svid == USB_TYPEC_DP_SID && state->alt->mode == USB_TYPEC_DP_MODE); if (!has_dp) dev_err(dev, "dp altmode not register\n"); return 0; } static int anx7411_usb_set_orientation(struct typec_switch_dev *sw, enum typec_orientation orientation) { /* No need set */ return 0; } static int anx7411_register_switch(struct anx7411_data *ctx, struct device *dev, struct fwnode_handle *fwnode) { struct typec_switch_desc sw_desc = { }; sw_desc.fwnode = fwnode; sw_desc.drvdata = ctx; sw_desc.name = fwnode_get_name(fwnode); sw_desc.set = anx7411_usb_set_orientation; ctx->typec.typec_switch = typec_switch_register(dev, &sw_desc); if (IS_ERR(ctx->typec.typec_switch)) { dev_err(dev, "switch register failed\n"); return PTR_ERR(ctx->typec.typec_switch); } return 0; } static int anx7411_register_mux(struct anx7411_data *ctx, struct device *dev, struct fwnode_handle *fwnode) { struct typec_mux_desc mux_desc = { }; mux_desc.fwnode = fwnode; mux_desc.drvdata = ctx; mux_desc.name = fwnode_get_name(fwnode); mux_desc.set = anx7411_usb_mux_set; ctx->typec.typec_mux = typec_mux_register(dev, &mux_desc); if (IS_ERR(ctx->typec.typec_mux)) { dev_err(dev, "mux register failed\n"); return PTR_ERR(ctx->typec.typec_mux); } return 0; } static void anx7411_unregister_mux(struct anx7411_data *ctx) { if (ctx->typec.typec_mux) { typec_mux_unregister(ctx->typec.typec_mux); ctx->typec.typec_mux = NULL; } } static void anx7411_unregister_switch(struct anx7411_data *ctx) { if (ctx->typec.typec_switch) { typec_switch_unregister(ctx->typec.typec_switch); ctx->typec.typec_switch = NULL; } } static int anx7411_typec_switch_probe(struct anx7411_data *ctx, struct device *dev) { int ret; struct device_node *node; node = of_get_child_by_name(dev->of_node, "orientation_switch"); if (!node) return 0; ret = anx7411_register_switch(ctx, dev, &node->fwnode); if (ret) { dev_err(dev, "failed register switch"); return ret; } node = of_get_child_by_name(dev->of_node, "mode_switch"); if (!node) { dev_err(dev, "no typec mux exist"); ret = -ENODEV; goto unregister_switch; } ret = anx7411_register_mux(ctx, dev, &node->fwnode); if (ret) { dev_err(dev, "failed register mode switch"); ret = -ENODEV; goto unregister_switch; } return 0; unregister_switch: anx7411_unregister_switch(ctx); return ret; } static int anx7411_typec_port_probe(struct anx7411_data *ctx, struct device *dev) { struct typec_capability *cap = &ctx->typec.caps; struct typec_params *typecp = &ctx->typec; struct fwnode_handle *fwnode; const char *buf; int ret, i; fwnode = device_get_named_child_node(dev, "connector"); if (!fwnode) return -EINVAL; ret = fwnode_property_read_string(fwnode, "power-role", &buf); if (ret) { dev_err(dev, "power-role not found: %d\n", ret); return ret; } ret = typec_find_port_power_role(buf); if (ret < 0) return ret; cap->type = ret; ret = fwnode_property_read_string(fwnode, "data-role", &buf); if (ret) { dev_err(dev, "data-role not found: %d\n", ret); return ret; } ret = typec_find_port_data_role(buf); if (ret < 0) return ret; cap->data = ret; ret = fwnode_property_read_string(fwnode, "try-power-role", &buf); if (ret) { dev_err(dev, "try-power-role not found: %d\n", ret); return ret; } ret = typec_find_power_role(buf); if (ret < 0) return ret; cap->prefer_role = ret; /* Get source pdos */ ret = fwnode_property_count_u32(fwnode, "source-pdos"); if (ret > 0) { typecp->src_pdo_nr = min_t(u8, ret, PDO_MAX_OBJECTS); ret = fwnode_property_read_u32_array(fwnode, "source-pdos", typecp->src_pdo, typecp->src_pdo_nr); if (ret < 0) { dev_err(dev, "source cap validate failed: %d\n", ret); return -EINVAL; } typecp->caps_flags |= HAS_SOURCE_CAP; } ret = fwnode_property_count_u32(fwnode, "sink-pdos"); if (ret > 0) { typecp->sink_pdo_nr = min_t(u8, ret, PDO_MAX_OBJECTS); ret = fwnode_property_read_u32_array(fwnode, "sink-pdos", typecp->sink_pdo, typecp->sink_pdo_nr); if (ret < 0) { dev_err(dev, "sink cap validate failed: %d\n", ret); return -EINVAL; } for (i = 0; i < typecp->sink_pdo_nr; i++) { ret = 0; switch (pdo_type(typecp->sink_pdo[i])) { case PDO_TYPE_FIXED: ret = pdo_fixed_voltage(typecp->sink_pdo[i]); break; case PDO_TYPE_BATT: case PDO_TYPE_VAR: ret = pdo_max_voltage(typecp->sink_pdo[i]); break; case PDO_TYPE_APDO: default: ret = 0; break; } /* 100mv per unit */ typecp->sink_voltage = max(5000, ret) / 100; } typecp->caps_flags |= HAS_SINK_CAP; } if (!fwnode_property_read_u32(fwnode, "op-sink-microwatt", &ret)) { typecp->sink_watt = ret / 500000; /* 500mw per unit */ typecp->caps_flags |= HAS_SINK_WATT; } cap->fwnode = fwnode; ctx->typec.role_sw = usb_role_switch_get(dev); if (IS_ERR(ctx->typec.role_sw)) { dev_err(dev, "USB role switch not found.\n"); ctx->typec.role_sw = NULL; } ctx->typec.port = typec_register_port(dev, cap); if (IS_ERR(ctx->typec.port)) { ret = PTR_ERR(ctx->typec.port); ctx->typec.port = NULL; dev_err(dev, "Failed to register type c port %d\n", ret); return ret; } typec_port_register_altmodes(ctx->typec.port, NULL, ctx, ctx->typec.port_amode, MAX_ALTMODE); return 0; } static int anx7411_typec_check_connection(struct anx7411_data *ctx) { int ret; ret = anx7411_reg_read(ctx->spi_client, FW_VER); if (ret < 0) return 0; /* No device attached in typec port */ /* Clear interrupt and alert status */ ret = anx7411_reg_write(ctx->spi_client, INT_STS, 0); ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_0, 0xFF); ret |= anx7411_reg_write(ctx->tcpc_client, ALERT_1, 0xFF); if (ret) return ret; ret = anx7411_cc_status_detect(ctx); ret |= anx7411_power_role_detect(ctx); ret |= anx7411_data_role_detect(ctx); ret |= anx7411_set_mux(ctx, SELECT_PIN_ASSIGMENT_C); if (ret) return ret; ret = anx7411_send_msg(ctx, TYPE_GET_DP_ALT_ENTER, NULL, 0); ret |= anx7411_send_msg(ctx, TYPE_GET_DP_DISCOVER_MODES_INFO, NULL, 0); return ret; } static int __maybe_unused anx7411_runtime_pm_suspend(struct device *dev) { struct anx7411_data *ctx = dev_get_drvdata(dev); mutex_lock(&ctx->lock); anx7411_partner_unregister_altmode(ctx); if (ctx->typec.partner) anx7411_unregister_partner(ctx); mutex_unlock(&ctx->lock); return 0; } static int __maybe_unused anx7411_runtime_pm_resume(struct device *dev) { struct anx7411_data *ctx = dev_get_drvdata(dev); mutex_lock(&ctx->lock); /* Detect PD connection */ if (anx7411_typec_check_connection(ctx)) dev_err(dev, "check connection"); mutex_unlock(&ctx->lock); return 0; } static const struct dev_pm_ops anx7411_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) SET_RUNTIME_PM_OPS(anx7411_runtime_pm_suspend, anx7411_runtime_pm_resume, NULL) }; static void anx7411_get_gpio_irq(struct anx7411_data *ctx) { struct device *dev = &ctx->tcpc_client->dev; ctx->intp_gpiod = devm_gpiod_get_optional(dev, "interrupt", GPIOD_IN); if (IS_ERR_OR_NULL(ctx->intp_gpiod)) { dev_err(dev, "no interrupt gpio property\n"); return; } ctx->intp_irq = gpiod_to_irq(ctx->intp_gpiod); if (ctx->intp_irq < 0) dev_err(dev, "failed to get GPIO IRQ\n"); } static enum power_supply_usb_type anx7411_psy_usb_types[] = { POWER_SUPPLY_USB_TYPE_C, POWER_SUPPLY_USB_TYPE_PD, POWER_SUPPLY_USB_TYPE_PD_PPS, }; static enum power_supply_property anx7411_psy_props[] = { POWER_SUPPLY_PROP_USB_TYPE, POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_VOLTAGE_MIN, POWER_SUPPLY_PROP_VOLTAGE_MAX, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CURRENT_MAX, POWER_SUPPLY_PROP_CURRENT_NOW, }; static int anx7411_psy_set_prop(struct power_supply *psy, enum power_supply_property psp, const union power_supply_propval *val) { struct anx7411_data *ctx = power_supply_get_drvdata(psy); int ret = 0; if (psp == POWER_SUPPLY_PROP_ONLINE) ctx->psy_online = val->intval; else ret = -EINVAL; power_supply_changed(ctx->psy); return ret; } static int anx7411_psy_prop_writeable(struct power_supply *psy, enum power_supply_property psp) { return psp == POWER_SUPPLY_PROP_ONLINE; } static int anx7411_psy_get_prop(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { struct anx7411_data *ctx = power_supply_get_drvdata(psy); int ret = 0; switch (psp) { case POWER_SUPPLY_PROP_USB_TYPE: val->intval = ctx->usb_type; break; case POWER_SUPPLY_PROP_ONLINE: val->intval = ctx->psy_online; break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: case POWER_SUPPLY_PROP_VOLTAGE_MIN: case POWER_SUPPLY_PROP_VOLTAGE_MAX: val->intval = (ctx->psy_online) ? ctx->typec.request_voltage * 1000 : 0; break; case POWER_SUPPLY_PROP_CURRENT_NOW: case POWER_SUPPLY_PROP_CURRENT_MAX: val->intval = (ctx->psy_online) ? ctx->typec.request_current * 1000 : 0; break; default: ret = -EINVAL; break; } return ret; } static int anx7411_psy_register(struct anx7411_data *ctx) { struct power_supply_desc *psy_desc = &ctx->psy_desc; struct power_supply_config psy_cfg = {}; char *psy_name; psy_name = devm_kasprintf(ctx->dev, GFP_KERNEL, "anx7411-source-psy-%s", dev_name(ctx->dev)); if (!psy_name) return -ENOMEM; psy_desc->name = psy_name; psy_desc->type = POWER_SUPPLY_TYPE_USB; psy_desc->usb_types = anx7411_psy_usb_types; psy_desc->num_usb_types = ARRAY_SIZE(anx7411_psy_usb_types); psy_desc->properties = anx7411_psy_props; psy_desc->num_properties = ARRAY_SIZE(anx7411_psy_props); psy_desc->get_property = anx7411_psy_get_prop; psy_desc->set_property = anx7411_psy_set_prop; psy_desc->property_is_writeable = anx7411_psy_prop_writeable; ctx->usb_type = POWER_SUPPLY_USB_TYPE_C; ctx->psy = devm_power_supply_register(ctx->dev, psy_desc, &psy_cfg); if (IS_ERR(ctx->psy)) dev_warn(ctx->dev, "unable to register psy\n"); return PTR_ERR_OR_ZERO(ctx->psy); } static int anx7411_i2c_probe(struct i2c_client *client) { struct anx7411_data *plat; struct device *dev = &client->dev; int ret; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK)) return -ENODEV; plat = devm_kzalloc(dev, sizeof(*plat), GFP_KERNEL); if (!plat) return -ENOMEM; plat->tcpc_client = client; i2c_set_clientdata(client, plat); mutex_init(&plat->lock); ret = anx7411_register_i2c_dummy_clients(plat, client); if (ret) { dev_err(dev, "fail to reserve I2C bus\n"); return ret; } ret = anx7411_typec_switch_probe(plat, dev); if (ret) { dev_err(dev, "fail to probe typec switch\n"); goto free_i2c_dummy; } ret = anx7411_typec_port_probe(plat, dev); if (ret) { dev_err(dev, "fail to probe typec property.\n"); ret = -ENODEV; goto free_typec_switch; } plat->intp_irq = client->irq; if (!client->irq) anx7411_get_gpio_irq(plat); if (!plat->intp_irq) { dev_err(dev, "fail to get interrupt IRQ\n"); ret = -EINVAL; goto free_typec_port; } plat->dev = dev; plat->psy_online = ANX7411_PSY_OFFLINE; ret = anx7411_psy_register(plat); if (ret) { dev_err(dev, "register psy\n"); goto free_typec_port; } INIT_WORK(&plat->work, anx7411_work_func); plat->workqueue = alloc_workqueue("anx7411_work", WQ_FREEZABLE | WQ_MEM_RECLAIM, 1); if (!plat->workqueue) { dev_err(dev, "fail to create work queue\n"); ret = -ENOMEM; goto free_typec_port; } ret = devm_request_threaded_irq(dev, plat->intp_irq, NULL, anx7411_intr_isr, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "anx7411-intp", plat); if (ret) { dev_err(dev, "fail to request irq\n"); goto free_wq; } if (anx7411_typec_check_connection(plat)) dev_err(dev, "check status\n"); pm_runtime_enable(dev); return 0; free_wq: destroy_workqueue(plat->workqueue); free_typec_port: typec_unregister_port(plat->typec.port); anx7411_port_unregister_altmodes(plat->typec.port_amode); free_typec_switch: anx7411_unregister_switch(plat); anx7411_unregister_mux(plat); free_i2c_dummy: i2c_unregister_device(plat->spi_client); return ret; } static void anx7411_i2c_remove(struct i2c_client *client) { struct anx7411_data *plat = i2c_get_clientdata(client); anx7411_partner_unregister_altmode(plat); anx7411_unregister_partner(plat); if (plat->workqueue) destroy_workqueue(plat->workqueue); if (plat->spi_client) i2c_unregister_device(plat->spi_client); if (plat->typec.role_sw) usb_role_switch_put(plat->typec.role_sw); anx7411_unregister_mux(plat); anx7411_unregister_switch(plat); if (plat->typec.port) typec_unregister_port(plat->typec.port); anx7411_port_unregister_altmodes(plat->typec.port_amode); } static const struct i2c_device_id anx7411_id[] = { {"anx7411", 0}, {} }; MODULE_DEVICE_TABLE(i2c, anx7411_id); static const struct of_device_id anx_match_table[] = { {.compatible = "analogix,anx7411",}, {}, }; static struct i2c_driver anx7411_driver = { .driver = { .name = "anx7411", .of_match_table = anx_match_table, .pm = &anx7411_pm_ops, }, .probe_new = anx7411_i2c_probe, .remove = anx7411_i2c_remove, .id_table = anx7411_id, }; module_i2c_driver(anx7411_driver); MODULE_DESCRIPTION("Anx7411 USB Type-C PD driver"); MODULE_AUTHOR("Xin Ji <xji@analogixsemi.com>"); MODULE_LICENSE("GPL"); MODULE_VERSION("0.1.5");
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