seesaw: device support and tests

2026-08-22 15:39:01 +00:00 · 2023-10-16 22:22:53 +02:00
parent 92050d90da
commit 933c9e127d
5 changed files with 373 additions and 0 deletions
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+// Package seesaw provides a driver for the "i2c to whathever interface" called seesaw
+// documentation: https://learn.adafruit.com/adafruit-seesaw-atsamd09-breakout/overview
+package seesaw
+
+type ModuleBaseAddress byte
+
+// Module Base Addreses
+// The module base addresses for different seesaw modules.
+const (
+	ModuleStatusBase  ModuleBaseAddress = 0x00
+	ModuleGpioBase    ModuleBaseAddress = 0x01
+	ModuleSercom0Base ModuleBaseAddress = 0x02
+
+	ModuleTimerBase     ModuleBaseAddress = 0x08
+	ModuleAdcBase       ModuleBaseAddress = 0x09
+	ModuleDacBase       ModuleBaseAddress = 0x0A
+	ModuleInterruptBase ModuleBaseAddress = 0x0B
+	ModuleDapBase       ModuleBaseAddress = 0x0C
+	ModuleEepromBase    ModuleBaseAddress = 0x0D
+	ModuleNeoPixelBase  ModuleBaseAddress = 0x0E
+	ModuleTouchBase     ModuleBaseAddress = 0x0F
+	ModuleKeypadBase    ModuleBaseAddress = 0x10
+	ModuleEncoderBase   ModuleBaseAddress = 0x11
+	ModuleSpectrumBase  ModuleBaseAddress = 0x12
+)
+
+type FunctionAddress byte
+
+// GPIO module function address registers
+const (
+	FunctionGpioDirsetBulk FunctionAddress = 0x02
+	FunctionGpioDirclrBulk FunctionAddress = 0x03
+	FunctionGpioBulk       FunctionAddress = 0x04
+	FunctionGpioBulkSet    FunctionAddress = 0x05
+	FunctionGpioBulkClr    FunctionAddress = 0x06
+	FunctionGpioBulkToggle FunctionAddress = 0x07
+	FunctionGpioIntenset   FunctionAddress = 0x08
+	FunctionGpioIntenclr   FunctionAddress = 0x09
+	FunctionGpioIntflag    FunctionAddress = 0x0A
+	FunctionGpioPullenset  FunctionAddress = 0x0B
+	FunctionGpioPullenclr  FunctionAddress = 0x0C
+)
+
+// status module function address registers
+const (
+	FunctionStatusHwId    FunctionAddress = 0x01
+	FunctionStatusVersion FunctionAddress = 0x02
+	FunctionStatusOptions FunctionAddress = 0x03
+	FunctionStatusTemp    FunctionAddress = 0x04
+	FunctionStatusSwrst   FunctionAddress = 0x7F
+)
+
+// timer module function address registers
+const (
+	FunctionTimerStatus FunctionAddress = 0x00
+	FunctionTimerPwm    FunctionAddress = 0x01
+	FunctionTimerFreq   FunctionAddress = 0x02
+)
+
+// ADC module function address registers
+const (
+	FunctionAdcStatus        FunctionAddress = 0x00
+	FunctionAdcInten         FunctionAddress = 0x02
+	FunctionAdcIntenclr      FunctionAddress = 0x03
+	FunctionAdcWinmode       FunctionAddress = 0x04
+	FunctionAdcWinthresh     FunctionAddress = 0x05
+	FunctionAdcChannelOffset FunctionAddress = 0x07
+)
+
+// Sercom module function address registers
+const (
+	FunctionSercomStatus   FunctionAddress = 0x00
+	FunctionSercomInten    FunctionAddress = 0x02
+	FunctionSercomIntenclr FunctionAddress = 0x03
+	FunctionSercomBaud     FunctionAddress = 0x04
+	FunctionSercomData     FunctionAddress = 0x05
+)
+
+// neopixel module function address registers
+const (
+	FunctionNeopixelStatus    FunctionAddress = 0x00
+	FunctionNeopixelPin       FunctionAddress = 0x01
+	FunctionNeopixelSpeed     FunctionAddress = 0x02
+	FunctionNeopixelBufLength FunctionAddress = 0x03
+	FunctionNeopixelBuf       FunctionAddress = 0x04
+	FunctionNeopixelShow      FunctionAddress = 0x05
+)
+
+// touch module function address registers
+const (
+	FunctionTouchChannelOffset FunctionAddress = 0x10
+)
+
+// keypad module function address registers
+const (
+	FunctionKeypadStatus   FunctionAddress = 0x00
+	FunctionKeypadEvent    FunctionAddress = 0x01
+	FunctionKeypadIntenset FunctionAddress = 0x02
+	FunctionKeypadIntenclr FunctionAddress = 0x03
+	FunctionKeypadCount    FunctionAddress = 0x04
+	FunctionKeypadFifo     FunctionAddress = 0x10
+)