include/linux/mfd/stm32-timers.h

   1 /*
   2  * Copyright (C) STMicroelectronics 2016
   3  *
   4  * Author: Benjamin Gaignard <benjamin.gaignard@st.com>
   5  *
   6  * License terms:  GNU General Public License (GPL), version 2
   7  */
   8
   9 #ifndef _LINUX_STM32_GPTIMER_H_
  10 #define _LINUX_STM32_GPTIMER_H_
  11
  12 #include <linux/clk.h>
  13 #include <linux/regmap.h>
  14
  15 #define TIM_CR1         0x00    /* Control Register 1      */
  16 #define TIM_CR2         0x04    /* Control Register 2      */
  17 #define TIM_SMCR        0x08    /* Slave mode control reg  */
  18 #define TIM_DIER        0x0C    /* DMA/interrupt register  */
  19 #define TIM_SR          0x10    /* Status register         */
  20 #define TIM_EGR         0x14    /* Event Generation Reg    */
  21 #define TIM_CCMR1       0x18    /* Capt/Comp 1 Mode Reg    */
  22 #define TIM_CCMR2       0x1C    /* Capt/Comp 2 Mode Reg    */
  23 #define TIM_CCER        0x20    /* Capt/Comp Enable Reg    */
  24 #define TIM_CNT         0x24    /* Counter                 */
  25 #define TIM_PSC         0x28    /* Prescaler               */
  26 #define TIM_ARR         0x2c    /* Auto-Reload Register    */
  27 #define TIM_CCR1        0x34    /* Capt/Comp Register 1    */
  28 #define TIM_CCR2        0x38    /* Capt/Comp Register 2    */
  29 #define TIM_CCR3        0x3C    /* Capt/Comp Register 3    */
  30 #define TIM_CCR4        0x40    /* Capt/Comp Register 4    */
  31 #define TIM_BDTR        0x44    /* Break and Dead-Time Reg */
  32
  33 #define TIM_CR1_CEN     BIT(0)  /* Counter Enable          */
  34 #define TIM_CR1_DIR     BIT(4)  /* Counter Direction       */
  35 #define TIM_CR1_ARPE    BIT(7)  /* Auto-reload Preload Ena */
  36 #define TIM_CR2_MMS     (BIT(4) | BIT(5) | BIT(6)) /* Master mode selection */
  37 #define TIM_CR2_MMS2    GENMASK(23, 20) /* Master mode selection 2 */
  38 #define TIM_SMCR_SMS    (BIT(0) | BIT(1) | BIT(2)) /* Slave mode selection */
  39 #define TIM_SMCR_TS     (BIT(4) | BIT(5) | BIT(6)) /* Trigger selection */
  40 #define TIM_DIER_UIE    BIT(0)  /* Update interrupt        */
  41 #define TIM_SR_UIF      BIT(0)  /* Update interrupt flag   */
  42 #define TIM_EGR_UG      BIT(0)  /* Update Generation       */
  43 #define TIM_CCMR_PE     BIT(3)  /* Channel Preload Enable  */
  44 #define TIM_CCMR_M1     (BIT(6) | BIT(5))  /* Channel PWM Mode 1 */
  45 #define TIM_CCER_CC1E   BIT(0)  /* Capt/Comp 1  out Ena    */
  46 #define TIM_CCER_CC1P   BIT(1)  /* Capt/Comp 1  Polarity   */
  47 #define TIM_CCER_CC1NE  BIT(2)  /* Capt/Comp 1N out Ena    */
  48 #define TIM_CCER_CC1NP  BIT(3)  /* Capt/Comp 1N Polarity   */
  49 #define TIM_CCER_CC2E   BIT(4)  /* Capt/Comp 2  out Ena    */
  50 #define TIM_CCER_CC3E   BIT(8)  /* Capt/Comp 3  out Ena    */
  51 #define TIM_CCER_CC4E   BIT(12) /* Capt/Comp 4  out Ena    */
  52 #define TIM_CCER_CCXE   (BIT(0) | BIT(4) | BIT(8) | BIT(12))
  53 #define TIM_BDTR_BKE    BIT(12) /* Break input enable      */
  54 #define TIM_BDTR_BKP    BIT(13) /* Break input polarity    */
  55 #define TIM_BDTR_AOE    BIT(14) /* Automatic Output Enable */
  56 #define TIM_BDTR_MOE    BIT(15) /* Main Output Enable      */
  57 #define TIM_BDTR_BKF    (BIT(16) | BIT(17) | BIT(18) | BIT(19))
  58 #define TIM_BDTR_BK2F   (BIT(20) | BIT(21) | BIT(22) | BIT(23))
  59 #define TIM_BDTR_BK2E   BIT(24) /* Break 2 input enable    */
  60 #define TIM_BDTR_BK2P   BIT(25) /* Break 2 input polarity  */
  61
  62 #define MAX_TIM_PSC             0xFFFF
  63 #define TIM_CR2_MMS_SHIFT       4
  64 #define TIM_CR2_MMS2_SHIFT      20
  65 #define TIM_SMCR_TS_SHIFT       4
  66 #define TIM_BDTR_BKF_MASK       0xF
  67 #define TIM_BDTR_BKF_SHIFT      16
  68 #define TIM_BDTR_BK2F_SHIFT     20
  69
  70 struct stm32_timers {
  71         struct clk *clk;
  72         struct regmap *regmap;
  73         u32 max_arr;
  74 };
  75 #endif