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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /board/chocodile_vpdmcu/vpd_api.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14469.8.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'board/chocodile_vpdmcu/vpd_api.c')
-rw-r--r--board/chocodile_vpdmcu/vpd_api.c531
1 files changed, 0 insertions, 531 deletions
diff --git a/board/chocodile_vpdmcu/vpd_api.c b/board/chocodile_vpdmcu/vpd_api.c
deleted file mode 100644
index cdd2d9776d..0000000000
--- a/board/chocodile_vpdmcu/vpd_api.c
+++ /dev/null
@@ -1,531 +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.
- */
-
-#include "adc.h"
-#include "gpio.h"
-#include "registers.h"
-#include "vpd_api.h"
-#include "driver/tcpm/tcpm.h"
-
-/*
- * Polarity based on 'DFP Perspective' (see table 4-10 USB Type-C Cable and
- * Connector Specification Release 1.3)
- *
- * CC1 CC2 STATE POSITION
- * ----------------------------------------
- * open open NC N/A
- * Rd open UFP attached 1
- * open Rd UFP attached 2
- * open Ra pwr cable no UFP N/A
- * Ra open pwr cable no UFP N/A
- * Rd Ra pwr cable & UFP 1
- * Ra Rd pwr cable & UFP 2
- * Rd Rd dbg accessory N/A
- * Ra Ra audio accessory N/A
- *
- * Note, V(Rd) > V(Ra)
- */
-#ifndef PD_SRC_RD_THRESHOLD
-#define PD_SRC_RD_THRESHOLD PD_SRC_DEF_RD_THRESH_MV
-#endif
-#ifndef PD_SRC_VNC
-#define PD_SRC_VNC PD_SRC_DEF_VNC_MV
-#endif
-
-#undef CC_RA
-#define CC_RA(cc, sel) (cc < pd_src_rd_threshold[sel])
-#undef CC_RD
-#define CC_RD(cc, sel) ((cc >= pd_src_rd_threshold[sel]) && (cc < PD_SRC_VNC))
-
-/* (15.8K / (100K + 15.8K)) * 1000 = 136.4 */
-#define VBUS_SCALE_FACTOR 136
-/* (118K / (100K + 118K)) * 1000 = 541.3 */
-#define VCONN_SCALE_FACTOR 541
-
-#define VBUS_DETECT_THRESHOLD 2500 /* mV */
-#define VCONN_DETECT_THRESHOLD 2500 /* mV */
-
-#define SCALE(vmeas, sfactor) (((vmeas) * 1000) / (sfactor))
-
-/*
- * Type C power source charge current limits are identified by their cc
- * voltage (set by selecting the proper Rd resistor). Any voltage below
- * TYPE_C_SRC_500_THRESHOLD will not be identified as a type C charger.
- */
-#define TYPE_C_SRC_DEFAULT_THRESHOLD 200 /* mV */
-#define TYPE_C_SRC_1500_THRESHOLD 660 /* mV */
-#define TYPE_C_SRC_3000_THRESHOLD 1230 /* mV */
-
-/* Charge-Through pull up/down enabled */
-static int ct_cc_pull;
-/* Charge-Through pull up value */
-static int ct_cc_rp_value;
-
-/* Charge-Through pull up/down enabled */
-static int host_cc_pull;
-/* Charge-Through pull up value */
-static int host_cc_rp_value;
-
-/* Voltage thresholds for Ra attach in normal SRC mode */
-static int pd_src_rd_threshold[TYPEC_RP_RESERVED] = {
- PD_SRC_DEF_RD_THRESH_MV,
- PD_SRC_1_5_RD_THRESH_MV,
- PD_SRC_3_0_RD_THRESH_MV,
-};
-
-/* Convert CC voltage to CC status */
-static int vpd_cc_voltage_to_status(int cc_volt, int cc_pull)
-{
- /* If we have a pull-up, then we are source, check for Rd. */
- if (cc_pull == TYPEC_CC_RP) {
- if (CC_RD(cc_volt, ct_cc_rp_value))
- return TYPEC_CC_RD;
- else if (CC_RA(cc_volt, ct_cc_rp_value))
- return TYPEC_CC_VOLT_RA;
- else
- return TYPEC_CC_VOLT_OPEN;
- /* If we have a pull-down, then we are sink, check for Rp. */
- } else if (cc_pull == TYPEC_CC_RD || cc_pull == TYPEC_CC_RA_RD) {
- if (cc_volt >= TYPE_C_SRC_3000_THRESHOLD)
- return TYPEC_CC_VOLT_RP_3_0;
- else if (cc_volt >= TYPE_C_SRC_1500_THRESHOLD)
- return TYPEC_CC_VOLT_RP_1_5;
- else if (cc_volt >= TYPE_C_SRC_DEFAULT_THRESHOLD)
- return TYPEC_CC_VOLT_RP_DEF;
- else
- return TYPEC_CC_VOLT_OPEN;
- } else {
- /* If we are open, then always return 0 */
- return 0;
- }
-}
-
-void vpd_ct_set_pull(int pull, int rp_value)
-{
- ct_cc_pull = pull;
-
- switch (pull) {
- case TYPEC_CC_RP:
- ct_cc_rp_value = rp_value;
- vpd_cc1_cc2_db_en_l(GPO_HIGH);
- switch (rp_value) {
- case TYPEC_RP_USB:
- vpd_config_cc1_rp3a0_rd_l(PIN_ADC, 0);
- vpd_config_cc2_rp3a0_rd_l(PIN_ADC, 0);
- vpd_config_cc1_rpusb_odh(PIN_GPO, 1);
- vpd_config_cc2_rpusb_odh(PIN_GPO, 1);
- break;
- case TYPEC_RP_3A0:
- vpd_config_cc1_rpusb_odh(PIN_ADC, 0);
- vpd_config_cc2_rpusb_odh(PIN_ADC, 0);
- vpd_config_cc1_rp3a0_rd_l(PIN_GPO, 1);
- vpd_config_cc2_rp3a0_rd_l(PIN_GPO, 1);
- break;
- }
- break;
- case TYPEC_CC_RD:
- vpd_config_cc1_rpusb_odh(PIN_ADC, 0);
- vpd_config_cc2_rpusb_odh(PIN_ADC, 0);
- vpd_config_cc1_rp3a0_rd_l(PIN_GPO, 0);
- vpd_config_cc2_rp3a0_rd_l(PIN_GPO, 0);
- vpd_cc1_cc2_db_en_l(GPO_HIGH);
- break;
- case TYPEC_CC_OPEN:
- vpd_cc1_cc2_db_en_l(GPO_HIGH);
- vpd_config_cc1_rpusb_odh(PIN_ADC, 0);
- vpd_config_cc2_rpusb_odh(PIN_ADC, 0);
- vpd_config_cc1_rp3a0_rd_l(PIN_ADC, 0);
- vpd_config_cc2_rp3a0_rd_l(PIN_ADC, 0);
- break;
- }
-}
-
-void vpd_ct_get_cc(int *cc1, int *cc2)
-{
- int cc1_v = 0;
- int cc2_v = 0;
-
- switch (ct_cc_pull) {
- case TYPEC_CC_RP:
- switch (ct_cc_rp_value) {
- case TYPEC_RP_USB:
- cc1_v = adc_read_channel(ADC_CC1_RP3A0_RD_L);
- cc2_v = adc_read_channel(ADC_CC2_RP3A0_RD_L);
- break;
- case TYPEC_RP_3A0:
- cc1_v = adc_read_channel(ADC_CC1_RPUSB_ODH);
- cc2_v = adc_read_channel(ADC_CC2_RPUSB_ODH);
- break;
- }
- break;
- case TYPEC_CC_RD:
- cc1_v = adc_read_channel(ADC_CC1_RPUSB_ODH);
- cc2_v = adc_read_channel(ADC_CC2_RPUSB_ODH);
- break;
- case TYPEC_CC_OPEN:
- *cc1 = 0;
- *cc2 = 0;
- return;
- }
-
- *cc1 = vpd_cc_voltage_to_status(cc1_v, ct_cc_pull);
- *cc2 = vpd_cc_voltage_to_status(cc2_v, ct_cc_pull);
-}
-
-void vpd_host_set_pull(int pull, int rp_value)
-{
- host_cc_pull = pull;
-
- switch (pull) {
- case TYPEC_CC_RP:
- vpd_cc_db_en_od(GPO_LOW);
- host_cc_rp_value = rp_value;
- switch (rp_value) {
- case TYPEC_RP_USB:
- vpd_config_cc_rp3a0_rd_l(PIN_CMP, 0);
- vpd_cc_rpusb_odh(GPO_HIGH);
- break;
- case TYPEC_RP_3A0:
- vpd_cc_rpusb_odh(GPO_HZ);
- vpd_config_cc_rp3a0_rd_l(PIN_GPO, 1);
- break;
- }
- break;
- case TYPEC_CC_RD:
- vpd_cc_rpusb_odh(GPO_HZ);
- vpd_cc_db_en_od(GPO_LOW);
- vpd_config_cc_rp3a0_rd_l(PIN_GPO, 0);
- break;
- case TYPEC_CC_RA_RD:
- vpd_cc_rpusb_odh(GPO_HZ);
- vpd_config_cc_rp3a0_rd_l(PIN_CMP, 0);
-
- /*
- * RA is connected to VCONN
- * RD is connected to CC
- */
- vpd_cc_db_en_od(GPO_HIGH);
- break;
- case TYPEC_CC_OPEN:
- vpd_cc_rpusb_odh(GPO_HZ);
- vpd_config_cc_rp3a0_rd_l(PIN_CMP, 0);
- vpd_cc_db_en_od(GPO_LOW);
- break;
- }
-}
-
-void vpd_host_get_cc(int *cc)
-{
- *cc = vpd_cc_voltage_to_status(
- adc_read_channel(ADC_CC_VPDMCU), host_cc_pull);
-}
-
-void vpd_rx_enable(int en)
-{
- tcpm_set_rx_enable(0, en);
-}
-
-/*
- * PA2: Configure as COMP2_INM6 or GPO
- */
-void vpd_config_cc_rp3a0_rd_l(enum vpd_pin cfg, int en)
-{
- if (cfg == PIN_GPO) {
- /* Set output value in register */
- gpio_set_level(GPIO_CC_RP3A0_RD_L, en ? 1 : 0);
-
- /* Disable Analog mode and Enable GPO */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- & ~(3 << (2*2))) /* PA2 disable ADC */
- | (1 << (2*2)); /* Set as GPO */
- } else {
- /* Set PA2 pin to ANALOG function */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- | (3 << (2*2))); /* PA2 in ANALOG mode */
-
- /* Set PA3 pin to ANALOG function */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- | (3 << (2*3))); /* PA3 in ANALOG mode */
-
- /* Disable Window Mode. Select PA3 */
- STM32_COMP_CSR &= ~STM32_COMP_WNDWEN;
-
- /* No output selection. We will use Interrupt */
- STM32_COMP_CSR &= ~STM32_COMP_CMP2OUTSEL_NONE;
-
- /* Not inverting */
- STM32_COMP_CSR &= ~STM32_COMP_CMP2POL;
-
- /* Select COMP2_INM6 (PA2) */
- STM32_COMP_CSR |= STM32_COMP_CMP2INSEL_INM6;
-
- /* COMP Enable */
- STM32_COMP_CSR |= STM32_COMP_CMP2EN;
- }
-}
-
-/*
- * PA4: Configure as ADC, CMP, or GPO
- */
-void vpd_config_cc1_rp3a0_rd_l(enum vpd_pin cfg, int en)
-{
- if (cfg == PIN_GPO) {
- /* Default high. Enable cc1 Rp3A0 pullup */
- gpio_set_level(GPIO_CC1_RP3A0_RD_L, en ? 1 : 0);
-
- /* Disable Analog mode and Enable GPO */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- & ~(3 << (2*4))) /* PA4 disable ADC */
- | (1 << (2*4)); /* Set as GPO */
- }
-
- if (cfg == PIN_ADC || cfg == PIN_CMP) {
- /* Disable COMP2 */
- STM32_COMP_CSR &= ~STM32_COMP_CMP2EN;
-
- /* Set PA4 pin to Analog mode */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- | (3 << (2*4))); /* PA4 in ANALOG mode */
-
- if (cfg == PIN_CMP) {
- /* Set PA3 pin to ANALOG function */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- | (3 << (2*3))); /* PA3 in ANALOG mode */
-
- /* Disable Window Mode. Select PA3*/
- STM32_COMP_CSR &= ~STM32_COMP_WNDWEN;
-
- /* No output selection. We will use Interrupt */
- STM32_COMP_CSR &= ~STM32_COMP_CMP2OUTSEL_NONE;
-
- /* Select COMP2_INM4 (PA4) */
- STM32_COMP_CSR |= STM32_COMP_CMP2INSEL_INM4;
-
- /* COMP2 Enable */
- STM32_COMP_CSR |= STM32_COMP_CMP2EN;
- }
- }
-}
-
-/*
- * PA5: Configure as ADC, COMP, or GPO
- */
-void vpd_config_cc2_rp3a0_rd_l(enum vpd_pin cfg, int en)
-{
- if (cfg == PIN_GPO) {
- /* Set output value in register */
- gpio_set_level(GPIO_CC2_RP3A0_RD_L, en ? 1 : 0);
-
- /* Disable Analog mode and Enable GPO */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- & ~(3 << (2*5))) /* PA5 disable ADC */
- | (1 << (2*5)); /* Set as GPO */
- }
-
- if (cfg == PIN_ADC || cfg == PIN_CMP) {
- /* Disable COMP2 */
- STM32_COMP_CSR &= ~STM32_COMP_CMP2EN;
-
- /* Set PA5 pin to ANALOG function */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- | (3 << (2*5))); /* PA5 in ANALOG mode */
-
- if (cfg == PIN_CMP) {
- /* Set PA3 pin to ANALOG function */
- STM32_GPIO_MODER(GPIO_A) = (STM32_GPIO_MODER(GPIO_A)
- | (3 << (2*3))); /* PA3 in ANALOG mode */
-
- /* Disable Window Mode. */
- STM32_COMP_CSR &= ~STM32_COMP_WNDWEN;
-
- /* No output selection. We will use Interrupt */
- STM32_COMP_CSR &= ~STM32_COMP_CMP2OUTSEL_NONE;
-
- /* Select COMP2_INM5 (PA5) */
- STM32_COMP_CSR |= STM32_COMP_CMP2INSEL_INM5;
-
- /* COMP2 Enable */
- STM32_COMP_CSR |= STM32_COMP_CMP2EN;
- }
- }
-}
-
-/*
- * PB0: Configure as ADC or GPO
- */
-void vpd_config_cc1_rpusb_odh(enum vpd_pin cfg, int en)
-{
- if (cfg == PIN_GPO) {
- /* Set output value in register */
- gpio_set_level(GPIO_CC1_RPUSB_ODH, en ? 1 : 0);
-
- /* Disable Analog mode and Enable GPO */
- STM32_GPIO_MODER(GPIO_B) = (STM32_GPIO_MODER(GPIO_B)
- & ~(3 << (2*0))) /* PB0 disable ADC */
- | (1 << (2*0)); /* Set as GPO */
- } else {
- /* Enable Analog mode */
- STM32_GPIO_MODER(GPIO_B) = (STM32_GPIO_MODER(GPIO_B)
- | (3 << (2*0))); /* PB0 in ANALOG mode */
- }
-}
-
-/*
- * PB1: Configure as ADC or GPO
- */
-void vpd_config_cc2_rpusb_odh(enum vpd_pin cfg, int en)
-{
- if (cfg == PIN_GPO) {
- /* Set output value in register */
- gpio_set_level(GPIO_CC2_RPUSB_ODH, en ? 1 : 0);
-
- /* Disable Analog mode and Enable GPO */
- STM32_GPIO_MODER(GPIO_B) = (STM32_GPIO_MODER(GPIO_B)
- & ~(3 << (2*1))) /* PB1 disable ADC */
- | (1 << (2*1)); /* Set as GPO */
- } else {
- /* Enable Analog mode */
- STM32_GPIO_MODER(GPIO_B) = (STM32_GPIO_MODER(GPIO_B)
- | (3 << (2*1))); /* PB1 in ANALOG mode */
- }
-}
-
-inline int vpd_read_cc_vpdmcu(void)
-{
- return adc_read_channel(ADC_CC_VPDMCU);
-}
-
-inline int vpd_read_host_vbus(void)
-{
- return SCALE(adc_read_channel(ADC_HOST_VBUS_VSENSE), VBUS_SCALE_FACTOR);
-}
-
-inline int vpd_read_ct_vbus(void)
-{
- return SCALE(adc_read_channel(ADC_CHARGE_VBUS_VSENSE),
- VBUS_SCALE_FACTOR);
-}
-
-inline int vpd_read_vconn(void)
-{
- return SCALE(adc_read_channel(ADC_VCONN_VSENSE), VCONN_SCALE_FACTOR);
-}
-
-inline int vpd_is_host_vbus_present(void)
-{
- return (vpd_read_host_vbus() >= VBUS_DETECT_THRESHOLD);
-}
-
-inline int vpd_is_ct_vbus_present(void)
-{
- return (vpd_read_ct_vbus() >= VBUS_DETECT_THRESHOLD);
-}
-
-inline int vpd_is_vconn_present(void)
-{
- return (vpd_read_vconn() >= VCONN_DETECT_THRESHOLD);
-}
-
-inline int vpd_read_rdconnect_ref(void)
-{
- return adc_read_channel(ADC_RDCONNECT_REF);
-}
-
-void vpd_red_led(int on)
-{
- gpio_set_level(GPIO_DEBUG_LED_R_L, (on) ? 0 : 1);
-}
-
-void vpd_green_led(int on)
-{
- gpio_set_level(GPIO_DEBUG_LED_G_L, (on) ? 0 : 1);
-}
-
-void vpd_vbus_pass_en(int en)
-{
- gpio_set_level(GPIO_VBUS_PASS_EN, (en) ? 1 : 0);
-}
-
-void vpd_present_billboard(enum vpd_billboard bb)
-{
- switch (bb) {
- case BB_NONE:
- gpio_set_level(GPIO_PRESENT_BILLBOARD, 0);
- gpio_set_flags(GPIO_PRESENT_BILLBOARD, GPIO_OUTPUT);
- break;
- case BB_SRC:
- gpio_set_flags(GPIO_PRESENT_BILLBOARD, GPIO_INPUT);
- /* Enable Pull-up on PA8 */
- STM32_GPIO_PUPDR(GPIO_A) |= (1 << (2 * 8));
- break;
- case BB_SNK:
- gpio_set_level(GPIO_PRESENT_BILLBOARD, 1);
- gpio_set_flags(GPIO_PRESENT_BILLBOARD, GPIO_OUTPUT);
- break;
- }
-}
-
-void vpd_mcu_cc_en(int en)
-{
- gpio_set_level(GPIO_VPDMCU_CC_EN, (en) ? 1 : 0);
-}
-
-void vpd_ct_cc_sel(enum vpd_cc sel)
-{
- switch (sel) {
- case CT_OPEN:
- gpio_set_level(GPIO_CC1_SEL, 0);
- gpio_set_level(GPIO_CC2_SEL, 0);
- break;
- case CT_CC1:
- gpio_set_level(GPIO_CC2_SEL, 0);
- gpio_set_level(GPIO_CC1_SEL, 1);
- break;
- case CT_CC2:
- gpio_set_level(GPIO_CC1_SEL, 0);
- gpio_set_level(GPIO_CC2_SEL, 1);
- break;
- }
-}
-
-/* Set as GPO High, GPO Low, or High-Z */
-void vpd_cc_db_en_od(enum vpd_gpo val)
-{
- if (val == GPO_HZ) {
- gpio_set_flags(GPIO_CC_DB_EN_OD, GPIO_INPUT);
- } else {
- if (val == GPO_HIGH)
- gpio_set_level(GPIO_CC_DB_EN_OD, 1);
- else
- gpio_set_level(GPIO_CC_DB_EN_OD, 0);
-
- gpio_set_flags(GPIO_CC_DB_EN_OD, GPIO_OUTPUT);
- }
-}
-
-void vpd_cc_rpusb_odh(enum vpd_gpo val)
-{
- if (val == GPO_HZ) {
- gpio_set_flags(GPIO_CC_RPUSB_ODH, GPIO_INPUT);
- } else {
- gpio_set_level(GPIO_CC_RPUSB_ODH, (val == GPO_HIGH) ? 1 : 0);
- gpio_set_flags(GPIO_CC_RPUSB_ODH, GPIO_OUTPUT);
- }
-}
-
-void vpd_cc1_cc2_db_en_l(enum vpd_gpo val)
-{
- if (val == GPO_HZ) {
- gpio_set_flags(GPIO_CC1_CC2_DB_EN_L, GPIO_INPUT);
- } else {
- gpio_set_level(GPIO_CC1_CC2_DB_EN_L, (val == GPO_HIGH) ? 1 : 0);
- gpio_set_flags(GPIO_CC1_CC2_DB_EN_L, GPIO_OUTPUT);
- }
-}
-
-void vpd_vconn_pwr_sel_odl(enum vpd_pwr en)
-{
- gpio_set_level(GPIO_VCONN_PWR_SEL_ODL, (en == PWR_VBUS) ? 1 : 0);
-}