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main: define pinout for v2.37

This commit is contained in:
King Kévin 2022-08-05 12:43:52 +02:00
parent 319a783de0
commit 298f0ea3ca
1 changed files with 4 additions and 11 deletions
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15
main.c
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@ -1,6 +1,7 @@
/* firmware template for STM8S microcontroller
* Copyright (C) 2019-2022 King Kévin <kingkevin@cuvoodoo.info>
* SPDX-License-Identifier: GPL-3.0-or-later
* for HDMI firewall v2.37
*/
#include <stdint.h>
#include <stdbool.h>
@ -29,15 +30,12 @@ static bool eeprom_valid = true; // if the EDID can be read from EEPROM
#define SCL_SNK_PORT GPIO_PD
#define SCL_SNK_PIN PD3
#define SDA_SNK_PU_PORT GPIO_PD
#define SDA_SNK_PU_PIN PD4
#define SCL_SNK_PU_PORT GPIO_PA
#define SCL_SNK_PU_PIN PA1
#define SDA_SNK_PU_PIN PD6
#define SCL_SNK_PU_PORT GPIO_PC
#define SCL_SNK_PU_PIN PC5
static bool i2c_fwd = false; // if the I²C source lines are connected to sink
static bool sink_present = false; // if he sink is present (tested using sink DDC)
// external EEPROM write protect pin
#define WP_PORT GPIO_PC
#define WP_PIN PC5
// hot plug detect pull up
#define HPD_PORT GPIO_PC
#define HPD_PIN PC6
@ -296,11 +294,6 @@ we will only be able to provide 1 extension block since we can only respond to o
I2C_ITR |= (I2C_ITR_ITBUFEN | I2C_ITR_ITEVTEN); // enable buffer and event interrupts
}
// configure external EEPROM (actually not used)
WP_PORT->DDR.reg |= WP_PIN; // switch pin to output
WP_PORT->CR1.reg &= ~WP_PIN; // switch pin to open drain
WP_PORT->ODR.reg |= WP_PIN; // let write protect pulled up
// configure hot plug detect
HPD_PORT->DDR.reg |= HPD_PIN; // switch pin to output
HPD_PORT->CR1.reg &= ~HPD_PIN; // switch pin to open drain