[keyboard] Add chavdai40 keyboard (#9820)

* On branch add_chavdai40_keyboard

Changes to be committed:
	new file:   keyboards/chavdai40/boards/GENERIC_STM32_F042X6/board.c
	new file:   keyboards/chavdai40/boards/GENERIC_STM32_F042X6/board.h
	new file:   keyboards/chavdai40/boards/GENERIC_STM32_F042X6/board.mk
	new file:   keyboards/chavdai40/bootloader_defs.h
	new file:   keyboards/chavdai40/chavdai40.c
	new file:   keyboards/chavdai40/chavdai40.h
	new file:   keyboards/chavdai40/chconf.h
	new file:   keyboards/chavdai40/config.h
	new file:   keyboards/chavdai40/halconf.h
	new file:   keyboards/chavdai40/info.json
	new file:   keyboards/chavdai40/keymaps/42keys-dvorak/config.h
	new file:   keyboards/chavdai40/keymaps/42keys-dvorak/keymap.c
	new file:   keyboards/chavdai40/keymaps/42keys-eucalyn/config.h
	new file:   keyboards/chavdai40/keymaps/42keys-eucalyn/keymap.c
	new file:   keyboards/chavdai40/keymaps/42keys-qwerty/config.h
	new file:   keyboards/chavdai40/keymaps/42keys-qwerty/keymap.c
	new file:   keyboards/chavdai40/keymaps/44keys-dvorak/config.h
	new file:   keyboards/chavdai40/keymaps/44keys-dvorak/keymap.c
	new file:   keyboards/chavdai40/keymaps/44keys-eucalyn/config.h
	new file:   keyboards/chavdai40/keymaps/44keys-eucalyn/keymap.c
	new file:   keyboards/chavdai40/keymaps/44keys-qwerty/config.h
	new file:   keyboards/chavdai40/keymaps/44keys-qwerty/keymap.c
	new file:   keyboards/chavdai40/keymaps/default/config.h
	new file:   keyboards/chavdai40/keymaps/default/keymap.c
	new file:   keyboards/chavdai40/mcuconf.h
	new file:   keyboards/chavdai40/readme.md
	new file:   keyboards/chavdai40/rules.mk

* commit suggestions of zvecr and fauxpark, thanks

* commit suggestions of fauxpark, thanks

* commit suggestions of fauxpark, thanks

* commit suggestions of drashna, thanks

1 files changed, 190 insertions, 0 deletions

diff --git a/keyboards/chavdai40/mcuconf.h b/keyboards/chavdai40/mcuconf.h
new file mode 100644
index 0000000000..0cc575d40f
--- /dev/null
+++ b/keyboards/chavdai40/mcuconf.h
@@ -0,0 +1,190 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef MCUCONF_H
+#define MCUCONF_H
+
+/*
+ * STM32F0xx drivers configuration.
+ * The following settings override the default settings present in
+ * the various device driver implementation headers.
+ * Note that the settings for each driver only have effect if the whole
+ * driver is enabled in halconf.h.
+ *
+ * IRQ priorities:
+ * 3...0       Lowest...Highest.
+ *
+ * DMA priorities:
+ * 0...3        Lowest...Highest.
+ */
+
+#define STM32F0xx_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+#define STM32_NO_INIT                       FALSE
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_HSI_ENABLED                   TRUE
+#define STM32_HSI14_ENABLED                 TRUE
+#define STM32_HSI48_ENABLED                 FALSE
+#define STM32_LSI_ENABLED                   TRUE
+#define STM32_HSE_ENABLED                   FALSE
+#define STM32_LSE_ENABLED                   FALSE
+#define STM32_SW                            STM32_SW_PLL
+#define STM32_PLLSRC                        STM32_PLLSRC_HSI_DIV2
+#define STM32_PREDIV_VALUE                  1
+#define STM32_PLLMUL_VALUE                  12
+#define STM32_HPRE                          STM32_HPRE_DIV1
+#define STM32_PPRE                          STM32_PPRE_DIV1
+#define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK
+#define STM32_MCOPRE                        STM32_MCOPRE_DIV1
+#define STM32_PLLNODIV                      STM32_PLLNODIV_DIV2
+#define STM32_USBSW                         STM32_USBSW_HSI48
+#define STM32_CECSW                         STM32_CECSW_HSI
+#define STM32_I2C1SW                        STM32_I2C1SW_HSI
+#define STM32_USART1SW                      STM32_USART1SW_PCLK
+#define STM32_RTCSEL                        STM32_RTCSEL_LSI
+
+/*
+ * IRQ system settings.
+ */
+#define STM32_IRQ_EXTI0_1_IRQ_PRIORITY      3
+#define STM32_IRQ_EXTI2_3_IRQ_PRIORITY      3
+#define STM32_IRQ_EXTI4_15_IRQ_PRIORITY     3
+#define STM32_IRQ_EXTI16_IRQ_PRIORITY       3
+#define STM32_IRQ_EXTI17_20_IRQ_PRIORITY    3
+#define STM32_IRQ_EXTI21_22_IRQ_PRIORITY    3
+
+/*
+ * ADC driver system settings.
+ */
+#define STM32_ADC_USE_ADC1                  FALSE
+#define STM32_ADC_ADC1_CKMODE               STM32_ADC_CKMODE_ADCCLK
+#define STM32_ADC_ADC1_DMA_PRIORITY         2
+#define STM32_ADC_ADC1_DMA_IRQ_PRIORITY     2
+#define STM32_ADC_ADC1_DMA_STREAM           STM32_DMA_STREAM_ID(1, 1)
+
+/*
+ * GPT driver system settings.
+ */
+#define STM32_GPT_USE_TIM1                  FALSE
+#define STM32_GPT_USE_TIM2                  FALSE
+#define STM32_GPT_USE_TIM3                  FALSE
+#define STM32_GPT_USE_TIM14                 FALSE
+#define STM32_GPT_TIM1_IRQ_PRIORITY         2
+#define STM32_GPT_TIM2_IRQ_PRIORITY         2
+#define STM32_GPT_TIM3_IRQ_PRIORITY         2
+#define STM32_GPT_TIM14_IRQ_PRIORITY        2
+
+/*
+ * I2C driver system settings.
+ */
+#define STM32_I2C_USE_I2C1                  FALSE
+#define STM32_I2C_BUSY_TIMEOUT              50
+#define STM32_I2C_I2C1_IRQ_PRIORITY         3
+#define STM32_I2C_USE_DMA                   TRUE
+#define STM32_I2C_I2C1_DMA_PRIORITY         1
+#define STM32_I2C_I2C1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 3)
+#define STM32_I2C_I2C1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 2)
+#define STM32_I2C_DMA_ERROR_HOOK(i2cp)      osalSysHalt("DMA failure")
+
+/*
+ * I2S driver system settings.
+ */
+#define STM32_I2S_USE_SPI1                  FALSE
+#define STM32_I2S_SPI1_MODE                 (STM32_I2S_MODE_MASTER |        \
+                                             STM32_I2S_MODE_RX)
+#define STM32_I2S_SPI1_IRQ_PRIORITY         2
+#define STM32_I2S_SPI1_DMA_PRIORITY         1
+#define STM32_I2S_SPI1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 2)
+#define STM32_I2S_SPI1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 3)
+#define STM32_I2S_DMA_ERROR_HOOK(i2sp)      osalSysHalt("DMA failure")
+
+/*
+ * ICU driver system settings.
+ */
+#define STM32_ICU_USE_TIM1                  FALSE
+#define STM32_ICU_USE_TIM2                  FALSE
+#define STM32_ICU_USE_TIM3                  FALSE
+#define STM32_ICU_TIM1_IRQ_PRIORITY         3
+#define STM32_ICU_TIM2_IRQ_PRIORITY         3
+#define STM32_ICU_TIM3_IRQ_PRIORITY         3
+
+/*
+ * PWM driver system settings.
+ */
+#define STM32_PWM_USE_ADVANCED              FALSE
+#define STM32_PWM_USE_TIM1                  FALSE
+#define STM32_PWM_USE_TIM2                  FALSE
+#define STM32_PWM_USE_TIM3                  FALSE
+#define STM32_PWM_TIM1_IRQ_PRIORITY         3
+#define STM32_PWM_TIM2_IRQ_PRIORITY         3
+#define STM32_PWM_TIM3_IRQ_PRIORITY         3
+
+/*
+ * SERIAL driver system settings.
+ */
+#define STM32_SERIAL_USE_USART1             FALSE
+#define STM32_SERIAL_USE_USART2             TRUE
+#define STM32_SERIAL_USART1_PRIORITY        3
+#define STM32_SERIAL_USART2_PRIORITY        3
+
+/*
+ * SPI driver system settings.
+ */
+#define STM32_SPI_USE_SPI1                  FALSE
+#define STM32_SPI_SPI1_DMA_PRIORITY         1
+#define STM32_SPI_SPI1_IRQ_PRIORITY         2
+#define STM32_SPI_SPI1_RX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 2)
+#define STM32_SPI_SPI1_TX_DMA_STREAM        STM32_DMA_STREAM_ID(1, 3)
+#define STM32_SPI_DMA_ERROR_HOOK(spip)      osalSysHalt("DMA failure")
+
+/*
+ * ST driver system settings.
+ */
+#define STM32_ST_IRQ_PRIORITY               2
+#define STM32_ST_USE_TIMER                  2
+
+/*
+ * UART driver system settings.
+ */
+#define STM32_UART_USE_USART1               FALSE
+#define STM32_UART_USE_USART2               FALSE
+#define STM32_UART_USART1_IRQ_PRIORITY      3
+#define STM32_UART_USART2_IRQ_PRIORITY      3
+#define STM32_UART_USART1_DMA_PRIORITY      0
+#define STM32_UART_USART2_DMA_PRIORITY      0
+#define STM32_UART_USART1_RX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 3)
+#define STM32_UART_USART1_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 2)
+#define STM32_UART_USART2_RX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 5)
+#define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 4)
+#define STM32_UART_DMA_ERROR_HOOK(uartp)    osalSysHalt("DMA failure")
+
+/*
+ * WDG driver system settings.
+ */
+#define STM32_WDG_USE_IWDG                  FALSE
+
+/*
+ * USB driver system settings.
+ */
+#define STM32_USB_USE_USB1                  TRUE
+#define STM32_USB_LOW_POWER_ON_SUSPEND      FALSE
+#define STM32_USB_USB1_LP_IRQ_PRIORITY      3
+
+#endif /* MCUCONF_H */