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drivers: adc: Add STM32L1X ADC support 

Add ADC driver support for STM32L1X SoC series.

Signed-off-by: Takumi Ando <takumi@t15.red>
pull/23286/head
Takumi Ando 5 years ago committed by Kumar Gala
parent
5eb7862f7f
commit
8d106d198e
5 changed files with 95 additions and 2 deletions
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  1. 21
      drivers/adc/adc_stm32.c
  2. 60
      drivers/pinmux/stm32/pinmux_stm32l1x.h
  3. 10
      dts/arm/st/l1/stm32l1.dtsi
  4. 2
      soc/arm/st_stm32/stm32l1/dts_fixup.h
  5. 4
      soc/arm/st_stm32/stm32l1/soc.h

21
drivers/adc/adc_stm32.c
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@ -161,6 +161,18 @@ static const u32_t table_samp_time[] = { @@ -161,6 +161,18 @@ static const u32_t table_samp_time[] = {
SMP_TIME(247, S_5),
SMP_TIME(640, S_5),
};
#elif defined(CONFIG_SOC_SERIES_STM32L1X)
static const u16_t acq_time_tbl[8] = {5, 10, 17, 25, 49, 97, 193, 385};
static const u32_t table_samp_time[] = {
SMP_TIME(4, S),
SMP_TIME(9, S),
SMP_TIME(16, S),
SMP_TIME(24, S),
SMP_TIME(48, S),
SMP_TIME(96, S),
SMP_TIME(192, S),
SMP_TIME(384, S),
};
#endif
/* 16 external channels. */
@ -456,7 +468,8 @@ static int adc_stm32_channel_setup(struct device *dev, @@ -456,7 +468,8 @@ static int adc_stm32_channel_setup(struct device *dev,
#if !defined(CONFIG_SOC_SERIES_STM32F2X) && \
!defined(CONFIG_SOC_SERIES_STM32F4X) && \
!defined(CONFIG_SOC_SERIES_STM32F7X) && \
!defined(CONFIG_SOC_SERIES_STM32F1X)
!defined(CONFIG_SOC_SERIES_STM32F1X) && \
!defined(CONFIG_SOC_SERIES_STM32L1X)
static void adc_stm32_calib(struct device *dev)
{
struct adc_stm32_cfg *config =
@ -534,12 +547,16 @@ static int adc_stm32_init(struct device *dev) @@ -534,12 +547,16 @@ static int adc_stm32_init(struct device *dev)
defined(CONFIG_SOC_SERIES_STM32G4X)
LL_ADC_SetCommonClock(__LL_ADC_COMMON_INSTANCE(adc),
LL_ADC_CLOCK_SYNC_PCLK_DIV4);
#elif defined(CONFIG_SOC_SERIES_STM32L1X)
LL_ADC_SetCommonClock(__LL_ADC_COMMON_INSTANCE(adc),
LL_ADC_CLOCK_ASYNC_DIV4);
#endif
#if !defined(CONFIG_SOC_SERIES_STM32F2X) && \
!defined(CONFIG_SOC_SERIES_STM32F4X) && \
!defined(CONFIG_SOC_SERIES_STM32F7X) && \
!defined(CONFIG_SOC_SERIES_STM32F1X)
!defined(CONFIG_SOC_SERIES_STM32F1X) && \
!defined(CONFIG_SOC_SERIES_STM32L1X)
/*
* Calibration of F1 series has to be started after ADC Module is
* enabled.

60
drivers/pinmux/stm32/pinmux_stm32l1x.h
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@ -17,26 +17,42 @@ @@ -17,26 +17,42 @@
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PA0_USART2_CTS \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUSHPULL_PULLUP)
#define STM32L1X_PINMUX_FUNC_PA0_ADC1_IN0 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA1_PWM2_CH2 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PA1_USART2_RTS \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUPDR_NO_PULL)
#define STM32L1X_PINMUX_FUNC_PA1_ADC1_IN1 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA2_PWM2_CH3 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PA2_USART2_TX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUSHPULL_PULLUP)
#define STM32L1X_PINMUX_FUNC_PA2_ADC1_IN2 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA3_PWM2_CH4 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PA3_USART2_RX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUPDR_NO_PULL)
#define STM32L1X_PINMUX_FUNC_PA3_ADC1_IN3 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA4_SPI1_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32L1X_PINMUX_FUNC_PA4_ADC1_IN4 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA5_SPI1_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PA5_ADC1_IN5 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA6_SPI1_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32L1X_PINMUX_FUNC_PA6_ADC1_IN6 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA7_SPI1_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32L1X_PINMUX_FUNC_PA7_ADC1_IN7 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PA9_USART1_TX \
(STM32_PINMUX_ALT_FUNC_7 | STM32_PUSHPULL_PULLUP)
#define STM32L1X_PINMUX_FUNC_PA10_USART1_RX \
@ -51,8 +67,12 @@ @@ -51,8 +67,12 @@
/* Port B */
#define STM32L1X_PINMUX_FUNC_PB0_PWM3_CH3 \
(STM32_PINMUX_ALT_FUNC_2 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB0_ADC1_IN8 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PB1_PWM3_CH4 \
(STM32_PINMUX_ALT_FUNC_2 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB1_ADC1_IN9 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PB3_PWM2_CH2 \
(STM32_PINMUX_ALT_FUNC_1 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB3_SPI1_SCK \
@ -99,20 +119,40 @@ @@ -99,20 +119,40 @@
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB12_SPI2_NSS \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_PULLUP)
#define STM32L1X_PINMUX_FUNC_PB12_ADC1_IN18 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PB13_PWM9_CH1 \
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB13_SPI2_SCK \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB13_ADC1_IN19 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PB14_PWM9_CH2 \
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB14_SPI2_MISO \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32L1X_PINMUX_FUNC_PB14_ADC1_IN20 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PB15_PWM11_CH1 \
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PB15_SPI2_MOSI \
(STM32_PINMUX_ALT_FUNC_5 | STM32_PUPDR_PULL_DOWN)
#define STM32L1X_PINMUX_FUNC_PB15_ADC1_IN21 \
STM32_MODER_ANALOG_MODE
/* Port C */
#define STM32L1X_PINMUX_FUNC_PC0_ADC1_IN10 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PC1_ADC1_IN11 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PC2_ADC1_IN12 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PC3_ADC1_IN13 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PC4_ADC1_IN14 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PC5_ADC1_IN15 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PC6_PWM3_CH1 \
(STM32_PINMUX_ALT_FUNC_2 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PC7_PWM3_CH2 \
@ -145,5 +185,25 @@ @@ -145,5 +185,25 @@
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PE1_PWM11_CH1 \
(STM32_PINMUX_ALT_FUNC_3 | STM32_PUSHPULL_NOPULL)
#define STM32L1X_PINMUX_FUNC_PE7_ADC1_IN22 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PE8_ADC1_IN23 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PE9_ADC1_IN24 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PE10_ADC1_IN25 \
STM32_MODER_ANALOG_MODE
/* Port F */
#define STM32L1X_PINMUX_FUNC_PF6_ADC1_IN27 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PF7_ADC1_IN28 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PF8_ADC1_IN29 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PF9_ADC1_IN30 \
STM32_MODER_ANALOG_MODE
#define STM32L1X_PINMUX_FUNC_PF10_ADC1_IN31 \
STM32_MODER_ANALOG_MODE
#endif /* ZEPHYR_DRIVERS_PINMUX_STM32_PINMUX_STM32L1X_H_ */

10
dts/arm/st/l1/stm32l1.dtsi
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@ -112,6 +112,16 @@ @@ -112,6 +112,16 @@
label = "UART_1";
};
adc1: adc@40012400 {
compatible = "st,stm32-adc";
reg = <0x40012400 0x400>;
clocks = <&rcc STM32_CLOCK_BUS_APB2 0x00000200>;
interrupts = <18 0>;
status = "disabled";
label = "ADC_1";
#io-channel-cells = <1>;
};
pinctrl: pin-controller@40020000 {
compatible = "st,stm32-pinmux";
#address-cells = <1>;

2
soc/arm/st_stm32/stm32l1/dts_fixup.h
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@ -84,5 +84,7 @@ @@ -84,5 +84,7 @@
#define DT_WDT_0_NAME DT_INST_0_ST_STM32_WATCHDOG_LABEL
#define DT_ADC_1_NAME DT_ST_STM32_ADC_40012400_LABEL
#define DT_RTC_0_NAME DT_INST_0_ST_STM32_RTC_LABEL
/* End of SoC Level DTS fixup file */

4
soc/arm/st_stm32/stm32l1/soc.h
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@ -51,6 +51,10 @@ @@ -51,6 +51,10 @@
#include <stm32l1xx_ll_i2c.h>
#endif
#ifdef CONFIG_ADC_STM32
#include <stm32l1xx_ll_adc.h>
#endif
#if defined(CONFIG_COUNTER_RTC_STM32)
#include <stm32l1xx_ll_rtc.h>
#include <stm32l1xx_ll_exti.h>

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