diff options
Diffstat (limited to 'driver/wpc')
-rw-r--r-- | driver/wpc/p9221.c | 808 | ||||
-rw-r--r-- | driver/wpc/p9221.h | 323 |
2 files changed, 0 insertions, 1131 deletions
diff --git a/driver/wpc/p9221.c b/driver/wpc/p9221.c deleted file mode 100644 index 973d991240..0000000000 --- a/driver/wpc/p9221.c +++ /dev/null @@ -1,808 +0,0 @@ -/* Copyright 2019 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -/* - * IDT P9221-R7 Wireless Power Receiver driver. - */ - -#include "p9221.h" -#include "charge_manager.h" -#include "chipset.h" -#include "common.h" -#include "console.h" -#include "gpio.h" -#include "hooks.h" -#include "power.h" -#include "tcpm/tcpm.h" -#include "timer.h" -#include "usb_charge.h" -#include "usb_pd.h" -#include "util.h" -#include <stdbool.h> -#include "printf.h" - -#define CPRINTS(format, args...) cprints(CC_USBPD, "WPC " format, ## args) - -#define P9221_TX_TIMEOUT_MS (20 * 1000*1000) -#define P9221_DCIN_TIMEOUT_MS (2 * 1000*1000) -#define P9221_VRECT_TIMEOUT_MS (2 * 1000*1000) -#define P9221_NOTIFIER_DELAY_MS (80*1000) -#define P9221R7_ILIM_MAX_UA (1600 * 1000) -#define P9221R7_OVER_CHECK_NUM 3 - -#define OVC_LIMIT 1 -#define OVC_THRESHOLD 1400000 -#define OVC_BACKOFF_LIMIT 900000 -#define OVC_BACKOFF_AMOUNT 100000 - -/* P9221 parameters */ -static struct wpc_charger_info p9221_charger_info = { - .online = false, - .i2c_port = I2C_PORT_WPC, - .pp_buf_valid = false, -}; - -static struct wpc_charger_info *wpc = &p9221_charger_info; - -static void p9221_set_offline(void); - -static const uint32_t p9221_ov_set_lut[] = { - 17000000, 20000000, 15000000, 13000000, - 11000000, 11000000, 11000000, 11000000 -}; - -static int p9221_reg_is_8_bit(uint16_t reg) -{ - switch (reg) { - case P9221_CHIP_REVISION_REG: - case P9221R7_VOUT_SET_REG: - case P9221R7_ILIM_SET_REG: - case P9221R7_CHARGE_STAT_REG: - case P9221R7_EPT_REG: - case P9221R7_SYSTEM_MODE_REG: - case P9221R7_COM_CHAN_RESET_REG: - case P9221R7_COM_CHAN_SEND_SIZE_REG: - case P9221R7_COM_CHAN_SEND_IDX_REG: - case P9221R7_COM_CHAN_RECV_SIZE_REG: - case P9221R7_COM_CHAN_RECV_IDX_REG: - case P9221R7_DEBUG_REG: - case P9221R7_EPP_Q_FACTOR_REG: - case P9221R7_EPP_TX_GUARANTEED_POWER_REG: - case P9221R7_EPP_TX_POTENTIAL_POWER_REG: - case P9221R7_EPP_TX_CAPABILITY_FLAGS_REG: - case P9221R7_EPP_RENEGOTIATION_REG: - case P9221R7_EPP_CUR_RPP_HEADER_REG: - case P9221R7_EPP_CUR_NEGOTIATED_POWER_REG: - case P9221R7_EPP_CUR_MAXIMUM_POWER_REG: - case P9221R7_EPP_CUR_FSK_MODULATION_REG: - case P9221R7_EPP_REQ_RPP_HEADER_REG: - case P9221R7_EPP_REQ_NEGOTIATED_POWER_REG: - case P9221R7_EPP_REQ_MAXIMUM_POWER_REG: - case P9221R7_EPP_REQ_FSK_MODULATION_REG: - case P9221R7_VRECT_TARGET_REG: - case P9221R7_VRECT_KNEE_REG: - case P9221R7_FOD_SECTION_REG: - case P9221R7_VRECT_ADJ_REG: - case P9221R7_ALIGN_X_ADC_REG: - case P9221R7_ALIGN_Y_ADC_REG: - case P9221R7_ASK_MODULATION_DEPTH_REG: - case P9221R7_OVSET_REG: - case P9221R7_EPP_TX_SPEC_REV_REG: - return true; - default: - return false; - } -} - -static int p9221_read8(uint16_t reg, int *val) -{ - return i2c_read_offset16(wpc->i2c_port, P9221_R7_ADDR_FLAGS, - reg, val, 1); -} - -static int p9221_write8(uint16_t reg, int val) -{ - return i2c_write_offset16(wpc->i2c_port, P9221_R7_ADDR_FLAGS, - reg, val, 1); -} - -static int p9221_read16(uint16_t reg, int *val) -{ - return i2c_read_offset16(wpc->i2c_port, P9221_R7_ADDR_FLAGS, - reg, val, 2); -} - -static int p9221_write16(uint16_t reg, int val) -{ - return i2c_write_offset16(wpc->i2c_port, P9221_R7_ADDR_FLAGS, - reg, val, 2); -} - -static int p9221_block_read(uint16_t reg, uint8_t *data, int len) -{ - return i2c_read_offset16_block(wpc->i2c_port, P9221_R7_ADDR_FLAGS, - reg, data, len); -} - -static int p9221_block_write(uint16_t reg, uint8_t *data, int len) -{ - return i2c_write_offset16_block(wpc->i2c_port, P9221_R7_ADDR_FLAGS, - reg, data, len); -} - -static int p9221_set_cmd_reg(uint8_t cmd) -{ - int cur_cmd; - int retry; - int ret; - - for (retry = 0; retry < P9221_COM_CHAN_RETRIES; retry++) { - ret = p9221_read8(P9221_COM_REG, &cur_cmd); - if (ret == EC_SUCCESS && cur_cmd == 0) - break; - msleep(25); - } - - if (retry >= P9221_COM_CHAN_RETRIES) { - CPRINTS("Failed to wait for cmd free %02x", cur_cmd); - return EC_ERROR_TIMEOUT; - } - - ret = p9221_write8(P9221_COM_REG, cmd); - if (ret) - CPRINTS("Failed to set cmd reg %02x: %d", cmd, ret); - - return ret; -} - -/* Convert a register value to uV, Hz, or uA */ -static int p9221_convert_reg_r7(uint16_t reg, uint16_t raw_data, uint32_t *val) -{ - switch (reg) { - case P9221R7_ALIGN_X_ADC_REG: /* raw */ - case P9221R7_ALIGN_Y_ADC_REG: /* raw */ - *val = raw_data; - break; - case P9221R7_VOUT_ADC_REG: /* 12-bit ADC raw */ - case P9221R7_IOUT_ADC_REG: /* 12-bit ADC raw */ - case P9221R7_DIE_TEMP_ADC_REG: /* 12-bit ADC raw */ - case P9221R7_EXT_TEMP_REG: - *val = raw_data & 0xFFF; - break; - case P9221R7_VOUT_SET_REG: /* 0.1V -> uV */ - *val = raw_data * 100 * 1000; - break; - case P9221R7_IOUT_REG: /* mA -> uA */ - case P9221R7_VRECT_REG: /* mV -> uV */ - case P9221R7_VOUT_REG: /* mV -> uV */ - case P9221R7_OP_FREQ_REG: /* kHz -> Hz */ - case P9221R7_TX_PINGFREQ_REG: /* kHz -> Hz */ - *val = raw_data * 1000; - break; - case P9221R7_ILIM_SET_REG: /* 100mA -> uA, 200mA offset */ - *val = ((raw_data * 100) + 200) * 1000; - break; - case P9221R7_OVSET_REG: /* uV */ - raw_data &= P9221R7_OVSET_MASK; - *val = p9221_ov_set_lut[raw_data]; - break; - default: - return -2; - } - - return 0; -} - -static int p9221_reg_read_converted(uint16_t reg, uint32_t *val) -{ - int ret; - int data; - - if (p9221_reg_is_8_bit(reg)) - ret = p9221_read8(reg, &data); - else - ret = p9221_read16(reg, &data); - - if (ret) - return ret; - - return p9221_convert_reg_r7(reg, data, val); -} - -static int p9221_is_online(void) -{ - int chip_id; - - if (p9221_read16(P9221_CHIP_ID_REG, &chip_id) - || chip_id != P9221_CHIP_ID) - return false; - else - return true; -} - -int wpc_chip_is_online(void) -{ - return p9221_is_online(); -} - - -void p9221_interrupt(enum gpio_signal signal) -{ - task_wake(TASK_ID_WPC); -} - -static int p9221r7_clear_interrupts(uint16_t mask) -{ - int ret; - - ret = p9221_write16(P9221R7_INT_CLEAR_REG, mask); - if (ret) { - CPRINTS("Failed to clear INT reg: %d", ret); - return ret; - } - - ret = p9221_set_cmd_reg(P9221_COM_CLEAR_INT_MASK); - if (ret) - CPRINTS("Failed to reset INT: %d", ret); - - return ret; -} - -/* - * Enable interrupts on the P9221 R7, note we don't really need to disable - * interrupts since when the device goes out of field, the P9221 is reset. - */ -static int p9221_enable_interrupts_r7(void) -{ - uint16_t mask = 0; - int ret; - - CPRINTS("Enable interrupts"); - - mask = P9221R7_STAT_LIMIT_MASK | P9221R7_STAT_CC_MASK - | P9221_STAT_VRECT; - - p9221r7_clear_interrupts(mask); - - ret = p9221_write8(P9221_INT_ENABLE_REG, mask); - if (ret) - CPRINTS("Failed to enable INTs: %d", ret); - return ret; -} - -static int p9221_send_csp(uint8_t status) -{ - int ret; - - CPRINTS("Send CSP=%d", status); - mutex_lock(&wpc->cmd_lock); - - ret = p9221_write8(P9221R7_CHARGE_STAT_REG, status); - if (ret == EC_SUCCESS) - ret = p9221_set_cmd_reg(P9221R7_COM_SENDCSP); - - mutex_unlock(&wpc->cmd_lock); - return ret; -} - -static int p9221_send_eop(uint8_t reason) -{ - int rv; - - CPRINTS("Send EOP reason=%d", reason); - mutex_lock(&wpc->cmd_lock); - - rv = p9221_write8(P9221R7_EPT_REG, reason); - if (rv == EC_SUCCESS) - rv = p9221_set_cmd_reg(P9221R7_COM_SENDEPT); - - mutex_unlock(&wpc->cmd_lock); - return rv; -} - -static void print_current_samples(uint32_t *iout_val, int count) -{ - int i; - char temp[P9221R7_OVER_CHECK_NUM * 9 + 1] = { 0 }; - - for (i = 0; i < count ; i++) - snprintf(temp + i * 9, sizeof(temp) - i * 9, - "%08x ", iout_val[i]); - CPRINTS("OVER IOUT_SAMPLES: %s", temp); -} - - -/* - * Number of times to poll the status to see if the current limit condition - * was transient or not. - */ -static void p9221_limit_handler_r7(uint16_t orign_irq_src) -{ - uint8_t reason; - int i; - int ret; - int ovc_count = 0; - uint32_t iout_val[P9221R7_OVER_CHECK_NUM] = { 0 }; - int irq_src = (int)orign_irq_src; - - CPRINTS("OVER INT: %02x", irq_src); - - if (irq_src & P9221R7_STAT_OVV) { - reason = P9221_EOP_OVER_VOLT; - goto send_eop; - } - - if (irq_src & P9221R7_STAT_OVT) { - reason = P9221_EOP_OVER_TEMP; - goto send_eop; - } - - if ((irq_src & P9221R7_STAT_UV) && !(irq_src & P9221R7_STAT_OVC)) - return; - - reason = P9221_EOP_OVER_CURRENT; - for (i = 0; i < P9221R7_OVER_CHECK_NUM; i++) { - ret = p9221r7_clear_interrupts( - irq_src & P9221R7_STAT_LIMIT_MASK); - msleep(50); - if (ret) - continue; - - ret = p9221_reg_read_converted(P9221R7_IOUT_REG, &iout_val[i]); - if (ret) { - CPRINTS("Failed to read IOUT[%d]: %d", i, ret); - continue; - } else if (iout_val[i] > OVC_THRESHOLD) { - ovc_count++; - } - - ret = p9221_read16(P9221_STATUS_REG, &irq_src); - if (ret) { - CPRINTS("Failed to read status: %d", ret); - continue; - } - - if ((irq_src & P9221R7_STAT_OVC) == 0) { - print_current_samples(iout_val, i + 1); - CPRINTS("OVER condition %04x cleared after %d tries", - irq_src, i); - return; - } - - CPRINTS("OVER status is still %04x, retry", irq_src); - } - - if (ovc_count < OVC_LIMIT) { - print_current_samples(iout_val, P9221R7_OVER_CHECK_NUM); - CPRINTS("ovc_threshold=%d, ovc_count=%d, ovc_limit=%d", - OVC_THRESHOLD, ovc_count, OVC_LIMIT); - return; - } - -send_eop: - CPRINTS("OVER is %04x, sending EOP %d", irq_src, reason); - - ret = p9221_send_eop(reason); - if (ret) - CPRINTS("Failed to send EOP %d: %d", reason, ret); -} - -static void p9221_abort_transfers(void) -{ - wpc->tx_busy = false; - wpc->tx_done = true; - wpc->rx_done = true; - wpc->rx_len = 0; -} - -/* Handler for r7 and R7 chips */ -static void p9221r7_irq_handler(uint16_t irq_src) -{ - int res; - - if (irq_src & P9221R7_STAT_LIMIT_MASK) - p9221_limit_handler_r7(irq_src); - - /* Receive complete */ - if (irq_src & P9221R7_STAT_CCDATARCVD) { - int rxlen = 0; - - res = p9221_read8(P9221R7_COM_CHAN_RECV_SIZE_REG, &rxlen); - if (res) - CPRINTS("Failed to read len: %d", res); - - if (rxlen) { - res = p9221_block_read(P9221R7_DATA_RECV_BUF_START, - wpc->rx_buf, rxlen); - if (res) { - CPRINTS("Failed to read CC data: %d", res); - rxlen = 0; - } - - wpc->rx_len = rxlen; - wpc->rx_done = true; - } - } - - /* Send complete */ - if (irq_src & P9221R7_STAT_CCSENDBUSY) { - wpc->tx_busy = false; - wpc->tx_done = true; - } - - /* Proprietary packet */ - if (irq_src & P9221R7_STAT_PPRCVD) { - res = p9221_block_read(P9221R7_DATA_RECV_BUF_START, - wpc->pp_buf, sizeof(wpc->pp_buf)); - if (res) { - CPRINTS("Failed to read PP: %d", res); - wpc->pp_buf_valid = false; - return; - } - - /* We only care about PP which come with 0x4F header */ - wpc->pp_buf_valid = (wpc->pp_buf[0] == 0x4F); - - hexdump(wpc->pp_buf, sizeof(wpc->pp_buf)); - } - - /* CC Reset complete */ - if (irq_src & P9221R7_STAT_CCRESET) - p9221_abort_transfers(); -} - -static int p9221_is_epp(void) -{ - int ret, reg; - uint32_t vout_uv; - - if (p9221_read8(P9221R7_SYSTEM_MODE_REG, ®) == EC_SUCCESS) - return reg & P9221R7_SYSTEM_MODE_EXTENDED_MASK; - - /* Check based on power supply voltage */ - ret = p9221_reg_read_converted(P9221R7_VOUT_ADC_REG, &vout_uv); - if (ret) { - CPRINTS("Failed to read VOUT_ADC: %d", ret); - return false; - } - - CPRINTS("Voltage is %duV", vout_uv); - if (vout_uv > P9221_EPP_THRESHOLD_UV) - return true; - - return false; -} - -static void p9221_config_fod(void) -{ - - int epp; - uint8_t *fod; - int fod_len; - int ret; - int retries = 3; - - CPRINTS("Config FOD"); - - epp = p9221_is_epp(); - fod_len = epp ? board_get_epp_fod(&fod) : board_get_fod(&fod); - if (!fod_len || !fod) { - CPRINTS("FOD data not found"); - return; - } - - while (retries) { - uint8_t fod_read[fod_len]; - - CPRINTS("Writing %s FOD (n=%d try=%d)", - epp ? "EPP" : "BPP", fod_len, retries); - - ret = p9221_block_write(P9221R7_FOD_REG, fod, fod_len); - if (ret) - goto no_fod; - - /* Verify the FOD has been written properly */ - ret = p9221_block_read(P9221R7_FOD_REG, fod_read, fod_len); - if (ret) - goto no_fod; - - if (memcmp(fod, fod_read, fod_len) == 0) - return; - - hexdump(fod_read, fod_len); - - retries--; - msleep(100); - } - -no_fod: - CPRINTS("Failed to set FOD. retries:%d ret:%d", retries, ret); -} - -static void p9221_set_online(void) -{ - int ret; - - CPRINTS("Set online"); - - wpc->online = true; - - wpc->tx_busy = false; - wpc->tx_done = true; - wpc->rx_done = false; - wpc->charge_supplier = CHARGE_SUPPLIER_WPC_BPP; - - ret = p9221_enable_interrupts_r7(); - if (ret) - CPRINTS("Failed to enable INT: %d", ret); - - /* NOTE: depends on _is_epp() which is not valid until DC_IN */ - p9221_config_fod(); -} - -static void p9221_vbus_check_timeout(void) -{ - CPRINTS("Timeout VBUS, online=%d", wpc->online); - if (wpc->online) - p9221_set_offline(); - -} -DECLARE_DEFERRED(p9221_vbus_check_timeout); - -static void p9221_set_offline(void) -{ - CPRINTS("Set offline"); - - wpc->online = false; - /* Reset PP buf so we can get a new serial number next time around */ - wpc->pp_buf_valid = false; - - p9221_abort_transfers(); - - hook_call_deferred(&p9221_vbus_check_timeout_data, -1); -} - -/* P9221_NOTIFIER_DELAY_MS from VRECTON */ -static int p9221_notifier_check_det(void) -{ - if (wpc->online) - goto done; - - /* send out a FOD but is_epp() is still invalid */ - p9221_set_online(); - - /* Give the vbus 2 seconds to come up. */ - CPRINTS("Waiting VBUS"); - hook_call_deferred(&p9221_vbus_check_timeout_data, -1); - hook_call_deferred(&p9221_vbus_check_timeout_data, - P9221_DCIN_TIMEOUT_MS); - -done: - wpc->p9221_check_det = false; - return 0; -} - -static int p9221_get_charge_supplier(void) -{ - if (!wpc->online) - return EC_ERROR_UNKNOWN; - - if (p9221_is_epp()) { - uint32_t tx_id; - int txmf_id; - int ret; - - wpc->charge_supplier = CHARGE_SUPPLIER_WPC_EPP; - - ret = p9221_read16(P9221R7_EPP_TX_MFG_CODE_REG, &txmf_id); - if (ret || txmf_id != P9221_GPP_TX_MF_ID) - return ret; - - ret = p9221_block_read(P9221R7_PROP_TX_ID_REG, - (uint8_t *) &tx_id, - P9221R7_PROP_TX_ID_SIZE); - if (ret) - return ret; - - if (tx_id & P9221R7_PROP_TX_ID_GPP_MASK) - wpc->charge_supplier = CHARGE_SUPPLIER_WPC_GPP; - - CPRINTS("txmf_id=0x%04x tx_id=0x%08x supplier=%d", - txmf_id, tx_id, wpc->charge_supplier); - } else { - wpc->charge_supplier = CHARGE_SUPPLIER_WPC_BPP; - CPRINTS("supplier=%d", wpc->charge_supplier); - } - - return EC_SUCCESS; -} - -static int p9221_get_icl(int charge_supplier) -{ - switch (charge_supplier) { - case CHARGE_SUPPLIER_WPC_EPP: - case CHARGE_SUPPLIER_WPC_GPP: - return P9221_DC_ICL_EPP_MA; - case CHARGE_SUPPLIER_WPC_BPP: - default: - return P9221_DC_ICL_BPP_MA; - } -} - -static int p9221_get_ivl(int charge_supplier) -{ - switch (charge_supplier) { - case CHARGE_SUPPLIER_WPC_EPP: - case CHARGE_SUPPLIER_WPC_GPP: - return P9221_DC_IVL_EPP_MV; - case CHARGE_SUPPLIER_WPC_BPP: - default: - return P9221_DC_IVL_BPP_MV; - } -} - -static void p9221_update_charger(int type, struct charge_port_info *chg) -{ - if (!chg) - charge_manager_update_dualrole(0, CAP_UNKNOWN); - else - charge_manager_update_dualrole(0, CAP_DEDICATED); - - charge_manager_update_charge(type, 0, chg); -} - -static int p9221_reg_write_converted_r7(uint16_t reg, uint32_t val) -{ - int ret = 0; - uint16_t data; - int i; - /* Do the appropriate conversion */ - switch (reg) { - case P9221R7_ILIM_SET_REG: - /* uA -> 0.1A, offset 0.2A */ - if ((val < 200000) || (val > 1600000)) - return -EC_ERROR_INVAL; - data = (val / (100 * 1000)) - 2; - break; - case P9221R7_VOUT_SET_REG: - /* uV -> 0.1V */ - val /= 1000; - if (val < 3500 || val > 9000) - return -EC_ERROR_INVAL; - data = val / 100; - break; - case P9221R7_OVSET_REG: - /* uV */ - for (i = 0; i < ARRAY_SIZE(p9221_ov_set_lut); i++) { - if (val == p9221_ov_set_lut[i]) - break; - } - if (i == ARRAY_SIZE(p9221_ov_set_lut)) - return -EC_ERROR_INVAL; - data = i; - break; - default: - return -EC_ERROR_INVAL; - } - if (p9221_reg_is_8_bit(reg)) - ret = p9221_write8(reg, data); - else - ret = p9221_write16(reg, data); - return ret; -} - -static int p9221_set_dc_icl(void) -{ - /* Increase the IOUT limit */ - if (p9221_reg_write_converted_r7(P9221R7_ILIM_SET_REG, - P9221R7_ILIM_MAX_UA)) - CPRINTS("%s set rx_iout limit fail.", __func__); - - return EC_SUCCESS; -} - - -static void p9221_notifier_check_vbus(void) -{ - struct charge_port_info chg; - - wpc->p9221_check_vbus = false; - - CPRINTS("%s online:%d vbus:%d", __func__, wpc->online, - wpc->vbus_status); - - /* - * We now have confirmation from DC_IN, kill the timer, p9221_online - * will be set by this function. - */ - hook_call_deferred(&p9221_vbus_check_timeout_data, -1); - - if (wpc->vbus_status) { - /* WPC VBUS on ,Always write FOD, check dc_icl, send CSP */ - p9221_set_dc_icl(); - p9221_config_fod(); - - p9221_send_csp(1); - - /* when wpc vbus attached after 2s, set wpc online */ - if (!wpc->online) - p9221_set_online(); - - /* WPC VBUS on , update charge voltage and current */ - p9221_get_charge_supplier(); - chg.voltage = p9221_get_ivl(wpc->charge_supplier); - chg.current = p9221_get_icl(wpc->charge_supplier); - - p9221_update_charger(wpc->charge_supplier, &chg); - } else { - /* - * Vbus detached, set wpc offline and update wpc charge voltage - * and current to zero. - */ - if (wpc->online) { - p9221_set_offline(); - p9221_update_charger(wpc->charge_supplier, NULL); - } - } - - CPRINTS("check_vbus changed on:%d vbus:%d", wpc->online, - wpc->vbus_status); - -} - -static void p9221_detect_work(void) -{ - - CPRINTS("%s online:%d check_vbus:%d check_det:%d vbus:%d", __func__, - wpc->online, wpc->p9221_check_vbus, wpc->p9221_check_det, - wpc->vbus_status); - - /* Step 1 */ - if (wpc->p9221_check_det) - p9221_notifier_check_det(); - - /* Step 2 */ - if (wpc->p9221_check_vbus) - p9221_notifier_check_vbus(); - -} -DECLARE_DEFERRED(p9221_detect_work); - -void p9221_notify_vbus_change(int vbus) -{ - wpc->p9221_check_vbus = true; - wpc->vbus_status = vbus; - hook_call_deferred(&p9221_detect_work_data, P9221_NOTIFIER_DELAY_MS); -} - -void wireless_power_charger_task(void *u) -{ - while (1) { - int ret, irq_src; - task_wait_event(-1); - - ret = p9221_read16(P9221_INT_REG, &irq_src); - if (ret) { - CPRINTS("Failed to read INT REG"); - continue; - } - - CPRINTS("INT SRC 0x%04x", irq_src); - - if (p9221r7_clear_interrupts(irq_src)) - continue; - - if (irq_src & P9221_STAT_VRECT) { - CPRINTS("VRECTON, online=%d", wpc->online); - if (!wpc->online) { - wpc->p9221_check_det = true; - hook_call_deferred(&p9221_detect_work_data, - P9221_NOTIFIER_DELAY_MS); - } - } - - p9221r7_irq_handler(irq_src); - } -} diff --git a/driver/wpc/p9221.h b/driver/wpc/p9221.h deleted file mode 100644 index 0bb0571b38..0000000000 --- a/driver/wpc/p9221.h +++ /dev/null @@ -1,323 +0,0 @@ -/* Copyright 2018 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - - -/* - * IDT P9221-R7 Wireless Power Receiver driver definitions. - */ - -#ifndef __P9221_R7_H -#define __P9221_R7_H - -#include "common.h" -#include "gpio.h" -#include "charge_manager.h" -#include "task.h" - - -/* ========== Variant-specific configuration ============ */ - -#define P9221_R7_ADDR_FLAGS 0x61 - -/* - * P9221 common registers - */ -#define P9221_CHIP_ID_REG 0x00 -#define P9221_CHIP_ID 0x9220 -#define P9221_CHIP_REVISION_REG 0x02 -#define P9221_CUSTOMER_ID_REG 0x03 -#define P9221R7_CUSTOMER_ID_VAL 0x05 -#define P9221_OTP_FW_MAJOR_REV_REG 0x04 -#define P9221_OTP_FW_MINOR_REV_REG 0x06 -#define P9221_OTP_FW_DATE_REG 0x08 -#define P9221_OTP_FW_DATE_SIZE 12 -#define P9221_OTP_FW_TIME_REG 0x14 -#define P9221_OTP_FW_TIME_SIZE 8 -#define P9221_SRAM_FW_MAJOR_REV_REG 0x1C -#define P9221_SRAM_FW_MINOR_REV_REG 0x1E -#define P9221_SRAM_FW_DATE_REG 0x20 -#define P9221_SRAM_FW_DATE_SIZE 12 -#define P9221_SRAM_FW_TIME_REG 0x2C -#define P9221_SRAM_FW_TIME_SIZE 8 -#define P9221_STATUS_REG 0x34 -#define P9221_INT_REG 0x36 -#define P9221_INT_MASK 0xF7 -#define P9221_INT_ENABLE_REG 0x38 -#define P9221_GPP_TX_MF_ID 0x0072 - -/* - * P9221 Rx registers (x != 5) - */ -#define P9221_CHARGE_STAT_REG 0x3A -#define P9221_EPT_REG 0x3B -#define P9221_VOUT_ADC_REG 0x3C -#define P9221_VOUT_ADC_MASK 0x0FFF -#define P9221_VOUT_SET_REG 0x3E -#define P9221_MAX_VOUT_SET_MV_DEFAULT 9000 -#define P9221_VRECT_ADC_REG 0x40 -#define P9221_VRECT_ADC_MASK 0x0FFF -#define P9221_OVSET_REG 0x42 -#define P9221_OVSET_MASK 0x70 -#define P9221_OVSET_SHIFT 4 -#define P9221_RX_IOUT_REG 0x44 -#define P9221_DIE_TEMP_ADC_REG 0x46 -#define P9221_DIE_TEMP_ADC_MASK 0x0FFF -#define P9221_OP_FREQ_REG 0x48 -#define P9221_ILIM_SET_REG 0x4A -#define P9221_ALIGN_X_ADC_REG 0x4B -#define P9221_ALIGN_Y_ADC_REG 0x4C -#define P9221_OP_MODE_REG 0x4D -#define P9221_COM_REG 0x4E -#define P9221_FW_SWITCH_KEY_REG 0x4F -#define P9221_INT_CLEAR_REG 0x56 -#define P9221_RXID_REG 0x5C -#define P9221_RXID_LEN 6 -#define P9221_MPREQ_REG 0x5C -#define P9221_MPREQ_LEN 6 -#define P9221_FOD_REG 0x68 -#define P9221_NUM_FOD 16 -#define P9221_RX_RAWIOUT_REG 0x7A -#define P9221_RX_RAWIOUT_MASK 0xFFF -#define P9221_PMA_AD_REG 0x7C -#define P9221_RX_PINGFREQ_REG 0xFC -#define P9221_RX_PINGFREQ_MASK 0xFFF -#define P9221_LAST_REG 0xFF - -/* - * P9221R7 unique registers - */ -#define P9221R7_INT_CLEAR_REG 0x3A -#define P9221R7_VOUT_SET_REG 0x3C -#define P9221R7_ILIM_SET_REG 0x3D -#define P9221R7_ILIM_SET_MAX 0x0E /* 0x0E = 1.6A */ -#define P9221R7_CHARGE_STAT_REG 0x3E -#define P9221R7_EPT_REG 0x3F -#define P9221R7_VRECT_REG 0x40 -#define P9221R7_VOUT_REG 0x42 -#define P9221R7_IOUT_REG 0x44 -#define P9221R7_OP_FREQ_REG 0x48 -#define P9221R7_SYSTEM_MODE_REG 0x4C -#define P9221R7_COM_CHAN_RESET_REG 0x50 -#define P9221R7_COM_CHAN_SEND_SIZE_REG 0x58 -#define P9221R7_COM_CHAN_SEND_IDX_REG 0x59 -#define P9221R7_COM_CHAN_RECV_SIZE_REG 0x5A -#define P9221R7_COM_CHAN_RECV_IDX_REG 0x5B -#define P9221R7_VRECT_ADC_REG 0x60 -#define P9221R7_VOUT_ADC_REG 0x62 -#define P9221R7_VOUT_ADC_MASK 0xFFF -#define P9221R7_IOUT_ADC_REG 0x64 -#define P9221R7_IOUT_ADC_MASK 0xFFF -#define P9221R7_DIE_TEMP_ADC_REG 0x66 -#define P9221R7_DIE_TEMP_ADC_MASK 0xFFF -#define P9221R7_AC_PERIOD_REG 0x68 -#define P9221R7_TX_PINGFREQ_REG 0x6A -#define P9221R7_EXT_TEMP_REG 0x6C -#define P9221R7_EXT_TEMP_MASK 0xFFF -#define P9221R7_FOD_REG 0x70 -#define P9221R7_NUM_FOD 16 -#define P9221R7_DEBUG_REG 0x80 -#define P9221R7_EPP_Q_FACTOR_REG 0x83 -#define P9221R7_EPP_TX_GUARANTEED_POWER_REG 0x84 -#define P9221R7_EPP_TX_POTENTIAL_POWER_REG 0x85 -#define P9221R7_EPP_TX_CAPABILITY_FLAGS_REG 0x86 -#define P9221R7_EPP_RENEGOTIATION_REG 0x87 -#define P9221R7_EPP_CUR_RPP_HEADER_REG 0x88 -#define P9221R7_EPP_CUR_NEGOTIATED_POWER_REG 0x89 -#define P9221R7_EPP_CUR_MAXIMUM_POWER_REG 0x8A -#define P9221R7_EPP_CUR_FSK_MODULATION_REG 0x8B -#define P9221R7_EPP_REQ_RPP_HEADER_REG 0x8C -#define P9221R7_EPP_REQ_NEGOTIATED_POWER_REG 0x8D -#define P9221R7_EPP_REQ_MAXIMUM_POWER_REG 0x8E -#define P9221R7_EPP_REQ_FSK_MODULATION_REG 0x8F -#define P9221R7_VRECT_TARGET_REG 0x90 -#define P9221R7_VRECT_KNEE_REG 0x92 -#define P9221R7_VRECT_CORRECTION_FACTOR_REG 0x93 -#define P9221R7_VRECT_MAX_CORRECTION_FACTOR_REG 0x94 -#define P9221R7_VRECT_MIN_CORRECTION_FACTOR_REG 0x96 -#define P9221R7_FOD_SECTION_REG 0x99 -#define P9221R7_VRECT_ADJ_REG 0x9E -#define P9221R7_ALIGN_X_ADC_REG 0xA0 -#define P9221R7_ALIGN_Y_ADC_REG 0xA1 -#define P9221R7_ASK_MODULATION_DEPTH_REG 0xA2 -#define P9221R7_OVSET_REG 0xA3 -#define P9221R7_OVSET_MASK 0x7 -#define P9221R7_EPP_TX_SPEC_REV_REG 0xA9 -#define P9221R7_EPP_TX_MFG_CODE_REG 0xAA -#define P9221R7_GP0_RESET_VOLT_REG 0xAC -#define P9221R7_GP1_RESET_VOLT_REG 0xAE -#define P9221R7_GP2_RESET_VOLT_REG 0xB0 -#define P9221R7_GP3_RESET_VOLT_REG 0xB2 -#define P9221R7_PROP_TX_ID_REG 0xB4 -#define P9221R7_PROP_TX_ID_SIZE 4 -#define P9221R7_DATA_SEND_BUF_START 0x100 -#define P9221R7_DATA_SEND_BUF_SIZE 0x80 -#define P9221R7_DATA_RECV_BUF_START 0x180 -#define P9221R7_DATA_RECV_BUF_SIZE 0x80 -#define P9221R7_MAX_PP_BUF_SIZE 16 -#define P9221R7_LAST_REG 0x1FF - -/* - * System Mode Mask (r7+/0x4C) - */ -#define P9221R7_SYSTEM_MODE_EXTENDED_MASK (1 << 3) - -/* - * TX ID GPP Mask (r7+/0xB4->0xB7) - */ -#define P9221R7_PROP_TX_ID_GPP_MASK (1 << 29) - -/* - * Com Channel Commands - */ -#define P9221R7_COM_CHAN_CCRESET BIT(7) -#define P9221_COM_CHAN_RETRIES 5 - -/* - * End of Power packet types - */ -#define P9221_EOP_UNKNOWN 0x00 -#define P9221_EOP_EOC 0x01 -#define P9221_EOP_INTERNAL_FAULT 0x02 -#define P9221_EOP_OVER_TEMP 0x03 -#define P9221_EOP_OVER_VOLT 0x04 -#define P9221_EOP_OVER_CURRENT 0x05 -#define P9221_EOP_BATT_FAIL 0x06 -#define P9221_EOP_RECONFIG 0x07 -#define P9221_EOP_NO_RESPONSE 0x08 -#define P9221_EOP_NEGOTIATION_FAIL 0x0A -#define P9221_EOP_RESTART_POWER 0x0B - -/* - * Command flags - */ -#define P9221R7_COM_RENEGOTIATE P9221_COM_RENEGOTIATE -#define P9221R7_COM_SWITCH2RAM P9221_COM_SWITCH_TO_RAM_MASK -#define P9221R7_COM_CLRINT P9221_COM_CLEAR_INT_MASK -#define P9221R7_COM_SENDCSP P9221_COM_SEND_CHG_STAT_MASK -#define P9221R7_COM_SENDEPT P9221_COM_SEND_EOP_MASK -#define P9221R7_COM_LDOTGL P9221_COM_LDO_TOGGLE -#define P9221R7_COM_CCACTIVATE BIT(0) - -#define P9221_COM_RENEGOTIATE BIT(7) -#define P9221_COM_SWITCH_TO_RAM_MASK BIT(6) -#define P9221_COM_CLEAR_INT_MASK BIT(5) -#define P9221_COM_SEND_CHG_STAT_MASK BIT(4) -#define P9221_COM_SEND_EOP_MASK BIT(3) -#define P9221_COM_LDO_TOGGLE BIT(1) - -/* - * Interrupt/Status flags for P9221 - */ -#define P9221_STAT_VOUT BIT(7) -#define P9221_STAT_VRECT BIT(6) -#define P9221_STAT_ACMISSING BIT(5) -#define P9221_STAT_OV_TEMP BIT(2) -#define P9221_STAT_OV_VOLT BIT(1) -#define P9221_STAT_OV_CURRENT BIT(0) -#define P9221_STAT_LIMIT_MASK (P9221_STAT_OV_TEMP | \ - P9221_STAT_OV_VOLT | \ - P9221_STAT_OV_CURRENT) -/* - * Interrupt/Status flags for P9221R7 - */ -#define P9221R7_STAT_CCRESET BIT(12) -#define P9221R7_STAT_CCERROR BIT(11) -#define P9221R7_STAT_PPRCVD BIT(10) -#define P9221R7_STAT_CCDATARCVD BIT(9) -#define P9221R7_STAT_CCSENDBUSY BIT(8) -#define P9221R7_STAT_VOUTCHANGED BIT(7) -#define P9221R7_STAT_VRECTON BIT(6) -#define P9221R7_STAT_MODECHANGED BIT(5) -#define P9221R7_STAT_UV BIT(3) -#define P9221R7_STAT_OVT BIT(2) -#define P9221R7_STAT_OVV BIT(1) -#define P9221R7_STAT_OVC BIT(0) -#define P9221R7_STAT_MASK 0x1FFF -#define P9221R7_STAT_CC_MASK (P9221R7_STAT_CCRESET | \ - P9221R7_STAT_PPRCVD | \ - P9221R7_STAT_CCERROR | \ - P9221R7_STAT_CCDATARCVD | \ - P9221R7_STAT_CCSENDBUSY) -#define P9221R7_STAT_LIMIT_MASK (P9221R7_STAT_UV | \ - P9221R7_STAT_OVV | \ - P9221R7_STAT_OVT | \ - P9221R7_STAT_OVC) - -#define P9221_DC_ICL_BPP_MA 1000 -#define P9221_DC_ICL_EPP_MA 1100 -#define P9221_DC_IVL_BPP_MV 5000 -#define P9221_DC_IVL_EPP_MV 9000 -#define P9221_EPP_THRESHOLD_UV 7000000 - -#define true 1 -#define false 0 - -struct wpc_charger_info { - uint8_t online; /* wpc is online */ - uint8_t cust_id; /* customer id */ - uint8_t i2c_port; /* i2c port */ - /* Proprietary Packets receive buffer, to get Proprietary data from TX*/ - uint8_t pp_buf[P9221R7_MAX_PP_BUF_SIZE]; - uint8_t pp_buf_valid; - /* Common message Packets receive buffer, for get data from TX */ - uint8_t rx_buf[P9221R7_DATA_RECV_BUF_SIZE]; - uint8_t rx_len; - uint8_t rx_done; - /* Message packets send buffer, used when send messages from RX to TX*/ - uint8_t tx_buf[P9221R7_DATA_SEND_BUF_SIZE]; - uint8_t tx_id; /* TX device id */ - uint8_t tx_len; /* The data size need send to TX */ - uint8_t tx_done; /* TX data send has done */ - uint8_t tx_busy; /* when tx_busy=1, can't transfer data from RX to TX */ - /* p9221_check_vbus=1 when VBUS has changed, need update charge state */ - uint8_t p9221_check_vbus; - /* p9221_check_det=1 when TX device has detected */ - uint8_t p9221_check_det; - /* vbus_status is 1 when VBUS attached and is 0 when VBUS detached*/ - uint8_t vbus_status; - /* supplier type of wireless charger */ - uint8_t charge_supplier; - /* lock of send command to p9221 */ - struct mutex cmd_lock; -}; - -/* Interrupt handler for p9221 */ -void p9221_interrupt(enum gpio_signal signal); - -/** - * notify p9221 detect update charger status when VBUS changed - * - * @param vbus: new status of VBUS, 1 if VBUS on, 0 if VBUS off. - */ -void p9221_notify_vbus_change(int vbus); - -/** - * get the fod (foreign-object detection) parameters for bpp charger type - * - * @param fod: return the real value of fod paramerters, - * return NULL if fod paramerters not set. - * - * @return the count bytes of fod paramerters. - */ -int board_get_fod(uint8_t **fod); - -/** - * get the fod (foreign-object detection) parameters for epp chager type - * - * @param fod: return the real value of fod paramerters, - * return NULL if fod paramerters not set. - * - * @return the count bytes of fod paramerters. - */ -int board_get_epp_fod(uint8_t **fod); - -/** - * return the wireless charge online status - * - * @return true if online, false if offline. - */ -int wpc_chip_is_online(void); - -#endif |