periph/dac: support for DAC extension API

cpu/efm32/periph/dac.c

@@ -29,7 +29,7 @@
 #include "em_dac.h"
 #endif
 
-int8_t dac_init(dac_t line)
+int8_t dac_init_cpu(dac_t line)
 {
     /* check if device is valid */
     if (line >= DAC_NUMOF) {
@@ -60,7 +60,7 @@ int8_t dac_init(dac_t line)
     return 0;
 }
 
-void dac_set(dac_t line, uint16_t value)
+void dac_set_cpu(dac_t line, uint16_t value)
 {
     uint8_t dev = dac_channel_config[line].dev;
 
@@ -69,14 +69,14 @@ void dac_set(dac_t line, uint16_t value)
                          value & 0xfff);
 }
 
-void dac_poweron(dac_t line)
+void dac_poweron_cpu(dac_t line)
 {
     uint8_t dev = dac_channel_config[line].dev;
 
     CMU_ClockEnable(dac_config[dev].cmu, true);
 }
 
-void dac_poweroff(dac_t line)
+void dac_poweroff_cpu(dac_t line)
 {
     uint8_t dev = dac_channel_config[line].dev;
 

cpu/esp32/periph/adc.c

@@ -400,7 +400,7 @@ static void _adc_module_init(void)
 static bool _dac_conf_check(void);
 static bool _dac_module_initialized  = false;
 
-int8_t dac_init (dac_t line)
+int8_t dac_init_cpu(dac_t line)
 {
     CHECK_PARAM_RET (line < dac_chn_num, DAC_NOLINE)
 
@@ -461,18 +461,18 @@ int8_t dac_init (dac_t line)
     return DAC_OK;
 }
 
-void dac_set (dac_t line, uint16_t value)
+void dac_set_cpu(dac_t line, uint16_t value)
 {
     CHECK_PARAM (line < dac_chn_num);
     RTCIO.pad_dac[_gpio_rtcio_map[dac_pins[line]] - RTCIO_DAC1].dac = value >> 8;
 }
 
-void dac_poweroff (dac_t line)
+void dac_poweroff_cpu(dac_t line)
 {
     CHECK_PARAM (line < dac_chn_num);
 }
 
-void dac_poweron (dac_t line)
+void dac_poweron_cpu(dac_t line)
 {
     CHECK_PARAM (line < dac_chn_num);
 }

cpu/kinetis/periph/dac.c

@@ -36,7 +36,7 @@ static inline DAC_Type *dev(dac_t line)
     return dac_config[line].dev;
 }
 
-int8_t dac_init(dac_t line)
+int8_t dac_init_cpu(dac_t line)
 {
     if (line >= DAC_NUMOF) {
         return DAC_NOLINE;
@@ -57,7 +57,7 @@ int8_t dac_init(dac_t line)
     return DAC_OK;
 }
 
-void dac_set(dac_t line, uint16_t value)
+void dac_set_cpu(dac_t line, uint16_t value)
 {
     assert(line < DAC_NUMOF);
 
@@ -68,14 +68,14 @@ void dac_set(dac_t line, uint16_t value)
     dev(line)->DAT[0].DATL = (value & 0xff);
 }
 
-void dac_poweron(dac_t line)
+void dac_poweron_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 
     bit_set8(&dac_config[line].dev->C0, DAC_C0_DACEN_SHIFT);
 }
 
-void dac_poweroff(dac_t line)
+void dac_poweroff_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 

cpu/sam3/periph/dac.c

@@ -32,7 +32,7 @@
 #define DAC_REFRESH         (DACC_MR_REFRESH(128))
 #endif
 
-int8_t dac_init(dac_t line)
+int8_t dac_init_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 
@@ -53,22 +53,22 @@ int8_t dac_init(dac_t line)
     return 0;
 }
 
-void dac_set(dac_t line, uint16_t value)
+void dac_set_cpu(dac_t line, uint16_t value)
 {
     assert(line < DAC_NUMOF);
 
     DACC->DACC_CDR = ((value >> 4) | (line << 12));
 }
 
-void dac_poweron(dac_t line)
+void dac_poweron_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 
     PMC->PMC_PCER1 = PMC_BIT;
     DACC->DACC_CHER = (1 << line);
 }
 
-void dac_poweroff(dac_t line)
+void dac_poweroff_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 

cpu/stm32_common/periph/dac.c

@@ -53,7 +53,7 @@ static inline DAC_TypeDef *dev(dac_t line)
 #endif
 }
 
-int8_t dac_init(dac_t line)
+int8_t dac_init_cpu(dac_t line)
 {
     if (line >= DAC_NUMOF) {
         return DAC_NOLINE;
@@ -69,7 +69,7 @@ int8_t dac_init(dac_t line)
     return DAC_OK;
 }
 
-void dac_set(dac_t line, uint16_t value)
+void dac_set_cpu(dac_t line, uint16_t value)
 {
     assert(line < DAC_NUMOF);
 
@@ -88,7 +88,7 @@ void dac_set(dac_t line, uint16_t value)
 #endif
 }
 
-void dac_poweron(dac_t line)
+void dac_poweron_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 
@@ -104,7 +104,7 @@ void dac_poweron(dac_t line)
     dev(line)->CR |= (1 << (16 * (dac_config[line].chan & 0x01)));
 }
 
-void dac_poweroff(dac_t line)
+void dac_poweroff_cpu(dac_t line)
 {
     assert(line < DAC_NUMOF);
 

drivers/Makefile.dep

@@ -148,6 +148,10 @@ ifneq (,$(filter ethos,$(USEMODULE)))
   USEMODULE += tsrb
 endif
 
+ifneq (,$(filter extend_dac,$(USEMODULE)))
+  USEMODULE += extend
+endif
+
 ifneq (,$(filter feetech,$(USEMODULE)))
   USEMODULE += uart_half_duplex
 endif

drivers/Makefile.include

@@ -74,6 +74,10 @@ ifneq (,$(filter encx24j600,$(USEMODULE)))
   USEMODULE_INCLUDES += $(RIOTBASE)/drivers/encx24j600/include
 endif
 
+ifneq (,$(filter extend,$(USEMODULE)))
+  USEMODULE_INCLUDES += $(RIOTBASE)/drivers/extend/include
+endif
+
 ifneq (,$(filter feetech,$(USEMODULE)))
   USEMODULE_INCLUDES += $(RIOTBASE)/drivers/feetech/include
 endif

drivers/extend/Makefile

@@ -0,0 +1 @@
+include $(RIOTBASE)/Makefile.base

drivers/extend/dac_notsup.c

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2018 Gunar Schorcht
+ * Copyright (C) 2018 Acutam Automation, LLC
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     drivers_extend_dac
+ *
+ * @{
+ *
+ * @file
+ * @brief       DAC extension not-supported functions
+ *
+ * @author      Gunar Schorcht <gunar@schorcht.net>
+ * @author      Matthew Blue <matthew.blue.neuro@gmail.com>
+ *
+ * @}
+ */
+
+#if MODULE_EXTEND_DAC
+
+#include "periph/dac.h"
+#include "extend/dac.h"
+
+#define ENABLE_DEBUG (0)
+#include "debug.h"
+
+int8_t dac_ext_init_notsup(void *dev, dac_t line)
+{
+    (void)dev;
+    (void)line;
+
+    DEBUG("[%s] call for dev %p line %u\n", __func__, dev, line);
+
+    return -1;
+}
+
+void dac_ext_set_notsup(void *dev, dac_t line, uint16_t value)
+{
+    (void)dev;
+    (void)line;
+    (void)value;
+
+    DEBUG("[%s] call for dev %p line %u value %u\n", __func__, dev, line, value);
+}
+
+void dac_ext_poweron_notsup(void *dev, dac_t line)
+{
+    (void)dev;
+    (void)line;
+
+    DEBUG("[%s] call for dev %p line %u\n", __func__, dev, line);
+}
+
+void dac_ext_poweroff_notsup(void *dev, dac_t line)
+{
+    (void)dev;
+    (void)line;
+
+    DEBUG("[%s] call for dev %p line %u\n", __func__, dev, line);
+}
+
+unsigned int dac_ext_channels_notsup(void *dev)
+{
+    (void)dev;
+
+    DEBUG("[%s] call for dev %p\n", __func__, dev);
+    return 0;
+}
+
+/* not-supported driver */
+const dac_ext_driver_t dac_ext_notsup_driver = {
+    .init = dac_ext_init_notsup,
+    .set = dac_ext_set_notsup,
+    .poweron = dac_ext_poweron_notsup,
+    .poweroff = dac_ext_poweroff_notsup,
+    .channels = dac_ext_channels_notsup
+};
+#endif /* MODULE_EXTEND_DAC */