diff options
Diffstat (limited to 'drivers/chibios/usbpd_stm32g4.c')
| -rw-r--r-- | drivers/chibios/usbpd_stm32g4.c | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/drivers/chibios/usbpd_stm32g4.c b/drivers/chibios/usbpd_stm32g4.c deleted file mode 100644 index f16ca8aeae..0000000000 --- a/drivers/chibios/usbpd_stm32g4.c +++ /dev/null @@ -1,76 +0,0 @@ -/* Copyright 2021 Nick Brassel (@tzarc) - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include <quantum.h> - -#ifndef USBPD_UCPD1_CFG1 -# define USBPD_UCPD1_CFG1 (UCPD_CFG1_PSC_UCPDCLK_0 | UCPD_CFG1_TRANSWIN_3 | UCPD_CFG1_IFRGAP_4 | UCPD_CFG1_HBITCLKDIV_4) -#endif // USBPD_UCPD1_CFG1 - -// Initialises the USBPD subsystem -__attribute__((weak)) void usbpd_init(void) { - // Disable dead-battery signals - PWR->CR3 |= PWR_CR3_UCPD_DBDIS; - // Enable the clock for the UCPD1 peripheral - RCC->APB1ENR2 |= RCC_APB1ENR2_UCPD1EN; - - // Copy the existing value - uint32_t CFG1 = UCPD1->CFG1; - // Force-disable UCPD1 before configuring - CFG1 &= ~UCPD_CFG1_UCPDEN; - // Configure UCPD1 - CFG1 = USBPD_UCPD1_CFG1; - // Apply the changes - UCPD1->CFG1 = CFG1; - // Enable UCPD1 - UCPD1->CFG1 |= UCPD_CFG1_UCPDEN; - - // Copy the existing value - uint32_t CR = UCPD1->CR; - // Clear out ANASUBMODE (irrelevant as a sink device) - CR &= ~UCPD_CR_ANASUBMODE_Msk; - // Advertise our capabilities as a sink, with both CC lines enabled - CR |= UCPD_CR_ANAMODE | UCPD_CR_CCENABLE_Msk; - // Apply the changes - UCPD1->CR = CR; -} - -// Gets the current state of the USBPD allowance -__attribute__((weak)) usbpd_allowance_t usbpd_get_allowance(void) { - uint32_t CR = UCPD1->CR; - - int ucpd_enabled = (UCPD1->CFG1 & UCPD_CFG1_UCPDEN_Msk) >> UCPD_CFG1_UCPDEN_Pos; - int anamode = (CR & UCPD_CR_ANAMODE_Msk) >> UCPD_CR_ANAMODE_Pos; - int cc_enabled = (CR & UCPD_CR_CCENABLE_Msk) >> UCPD_CR_CCENABLE_Pos; - - if (ucpd_enabled && anamode && cc_enabled) { - uint32_t SR = UCPD1->SR; - int vstate_cc1 = (SR & UCPD_SR_TYPEC_VSTATE_CC1_Msk) >> UCPD_SR_TYPEC_VSTATE_CC1_Pos; - int vstate_cc2 = (SR & UCPD_SR_TYPEC_VSTATE_CC2_Msk) >> UCPD_SR_TYPEC_VSTATE_CC2_Pos; - int vstate_max = vstate_cc1 > vstate_cc2 ? vstate_cc1 : vstate_cc2; - switch (vstate_max) { - case 0: - case 1: - return USBPD_500MA; // Note that this is 500mA (i.e. max USB 2.0), not 900mA, as we're not using USB 3.1 as a sink device. - case 2: - return USBPD_1500MA; - case 3: - return USBPD_3000MA; - } - } - - return USBPD_500MA; -}
\ No newline at end of file |