Add ARM I2Cv1 support to i2c_master (#6262)

[qmk_firmware.git] / drivers / arm / i2c_master.h

diff --git a/drivers/arm/i2c_master.h b/drivers/arm/i2c_master.h
index 1bb74c800f6cff5937ed76e8edfdab8cf6c9afbe..2f40d4985f13a7c779238825ce2f0ce35fc4dd0b 100644 (file)
--- a/drivers/arm/i2c_master.h
+++ b/drivers/arm/i2c_master.h
@@ -22,10 +22,16 @@
  * Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that
  * STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file.
  */
+#pragma once
 
 #include "ch.h"
 #include <hal.h>
 
+
+#if defined(STM32F1XX) || defined(STM32F1xx) || defined(STM32F2xx) || defined(STM32F4xx) || defined(STM32L0xx) || defined(STM32L1xx)
+    #define USE_I2CV1
+#endif
+
 #ifdef I2C1_BANK
     #define I2C1_SCL_BANK I2C1_BANK
     #define I2C1_SDA_BANK I2C1_BANK
@@ -46,30 +52,42 @@
     #define I2C1_SDA 7
 #endif
 
-// The default PAL alternate modes are used to signal that the pins are used for I2C
-#ifndef I2C1_SCL_PAL_MODE
-    #define I2C1_SCL_PAL_MODE 4
-#endif
-#ifndef I2C1_SDA_PAL_MODE
-    #define I2C1_SDA_PAL_MODE 4
-#endif
+#ifdef USE_I2CV1
+    #ifndef I2C1_OPMODE
+        #define I2C1_OPMODE OPMODE_I2C
+    #endif
+    #ifndef I2C1_CLOCK_SPEED
+        #define I2C1_CLOCK_SPEED 100000 /* 400000 */
+    #endif
+    #ifndef I2C1_DUTY_CYCLE
+        #define I2C1_DUTY_CYCLE STD_DUTY_CYCLE /* FAST_DUTY_CYCLE_2 */
+    #endif
+#else
+    // The default PAL alternate modes are used to signal that the pins are used for I2C
+    #ifndef I2C1_SCL_PAL_MODE
+        #define I2C1_SCL_PAL_MODE 4
+    #endif
+    #ifndef I2C1_SDA_PAL_MODE
+        #define I2C1_SDA_PAL_MODE 4
+    #endif
 
-// The default timing values below configures the I2C clock to 400khz assuming a 72Mhz clock
-// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
-#ifndef I2C1_TIMINGR_PRESC
-    #define I2C1_TIMINGR_PRESC 15U
-#endif
-#ifndef I2C1_TIMINGR_SCLDEL
-    #define I2C1_TIMINGR_SCLDEL 4U
-#endif
-#ifndef I2C1_TIMINGR_SDADEL
-    #define I2C1_TIMINGR_SDADEL 2U
-#endif
-#ifndef I2C1_TIMINGR_SCLH
-    #define I2C1_TIMINGR_SCLH 15U
-#endif
-#ifndef I2C1_TIMINGR_SCLL
-    #define I2C1_TIMINGR_SCLL 21U
+    // The default timing values below configures the I2C clock to 400khz assuming a 72Mhz clock
+    // For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
+    #ifndef I2C1_TIMINGR_PRESC
+        #define I2C1_TIMINGR_PRESC 15U
+    #endif
+    #ifndef I2C1_TIMINGR_SCLDEL
+        #define I2C1_TIMINGR_SCLDEL 4U
+    #endif
+    #ifndef I2C1_TIMINGR_SDADEL
+        #define I2C1_TIMINGR_SDADEL 2U
+    #endif
+    #ifndef I2C1_TIMINGR_SCLH
+        #define I2C1_TIMINGR_SCLH 15U
+    #endif
+    #ifndef I2C1_TIMINGR_SCLL
+        #define I2C1_TIMINGR_SCLL 21U
+    #endif
 #endif
 
 #ifndef I2C_DRIVER