From 4e375aa1f536e979a587534df0b6951fa39e8a30 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Tue, 16 Jul 2019 09:30:53 +0100
Subject: Add ARM I2Cv1 support to i2c_master (#6262)

* Add ARM I2Cv1 support to i2c_master

* Add I2Cv1 docs
---
 drivers/arm/i2c_master.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'drivers/arm/i2c_master.c')

diff --git a/drivers/arm/i2c_master.c b/drivers/arm/i2c_master.c
index 5814375f37..9b4a752b1c 100644
--- a/drivers/arm/i2c_master.c
+++ b/drivers/arm/i2c_master.c
@@ -33,11 +33,17 @@
 static uint8_t i2c_address;
 
 static const I2CConfig i2cconfig = {
+#ifdef USE_I2CV1
+  I2C1_OPMODE,
+  I2C1_CLOCK_SPEED,
+  I2C1_DUTY_CYCLE,
+#else
   STM32_TIMINGR_PRESC(I2C1_TIMINGR_PRESC) |
   STM32_TIMINGR_SCLDEL(I2C1_TIMINGR_SCLDEL) | STM32_TIMINGR_SDADEL(I2C1_TIMINGR_SDADEL) |
   STM32_TIMINGR_SCLH(I2C1_TIMINGR_SCLH)  | STM32_TIMINGR_SCLL(I2C1_TIMINGR_SCLL),
   0,
   0
+#endif
 };
 
 static i2c_status_t chibios_to_qmk(const msg_t* status) {
@@ -61,8 +67,13 @@ void i2c_init(void)
 
   chThdSleepMilliseconds(10);
 
+#ifdef USE_I2CV1
+  palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
+  palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
+#else
   palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_ALTERNATE(I2C1_SCL_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
   palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_ALTERNATE(I2C1_SDA_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
+#endif
 
   //i2cInit(); //This is invoked by halInit() so no need to redo it.
 }
-- 
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