1# SPDX-License-Identifier: GPL-2.0-only 2# 3# Counter devices 4# 5 6config I8254 7 tristate 8 select COUNTER 9 select REGMAP 10 help 11 Enables support for the i8254 interface library functions. The i8254 12 interface library provides functions to facilitate communication with 13 interfaces compatible with the venerable Intel 8254 Programmable 14 Interval Timer (PIT). The Intel 825x family of chips was first 15 released in the early 1980s but compatible interfaces are nowadays 16 typically found embedded in larger VLSI processing chips and FPGA 17 components. 18 19 If built as a module its name will be i8254. 20 21menuconfig COUNTER 22 tristate "Counter support" 23 help 24 This enables counter device support through the Generic Counter 25 interface. You only need to enable this, if you also want to enable 26 one or more of the counter device drivers below. 27 28if COUNTER 29 30config 104_QUAD_8 31 tristate "ACCES 104-QUAD-8 driver" 32 depends on (PC104 && X86) || COMPILE_TEST 33 depends on HAS_IOPORT_MAP 34 select ISA_BUS_API 35 select REGMAP_MMIO 36 help 37 Say yes here to build support for the ACCES 104-QUAD-8 quadrature 38 encoder counter/interface device family (104-QUAD-8, 104-QUAD-4). 39 40 A counter's respective error flag may be cleared by performing a write 41 operation on the respective count value attribute. The 104-QUAD-8 42 counters may be set either directly or via the counter's preset 43 attribute. 44 45 The base port addresses for the devices may be configured via the base 46 array module parameter. The interrupt line numbers for the devices may 47 be configured via the irq array module parameter. 48 49config FTM_QUADDEC 50 tristate "Flex Timer Module Quadrature decoder driver" 51 depends on SOC_LS1021A || COMPILE_TEST 52 depends on HAS_IOMEM && OF 53 help 54 Select this option to enable the Flex Timer Quadrature decoder 55 driver. 56 57 To compile this driver as a module, choose M here: the 58 module will be called ftm-quaddec. 59 60config INTEL_QEP 61 tristate "Intel Quadrature Encoder Peripheral driver" 62 depends on X86 63 depends on PCI 64 help 65 Select this option to enable the Intel Quadrature Encoder Peripheral 66 driver. 67 68 To compile this driver as a module, choose M here: the module 69 will be called intel-qep. 70 71config INTERRUPT_CNT 72 tristate "Interrupt counter driver" 73 depends on GPIOLIB 74 help 75 Select this option to enable interrupt counter driver. Any interrupt 76 source can be used by this driver as the event source. 77 78 To compile this driver as a module, choose M here: the 79 module will be called interrupt-cnt. 80 81config MICROCHIP_TCB_CAPTURE 82 tristate "Microchip Timer Counter Capture driver" 83 depends on SOC_AT91SAM9 || SOC_SAM_V7 || COMPILE_TEST 84 depends on HAS_IOMEM && OF 85 select REGMAP_MMIO 86 help 87 Select this option to enable the Microchip Timer Counter Block 88 capture driver. 89 90 To compile this driver as a module, choose M here: the 91 module will be called microchip-tcb-capture. 92 93config RZ_MTU3_CNT 94 tristate "Renesas RZ/G2L MTU3a counter driver" 95 depends on RZ_MTU3 96 help 97 Enable support for MTU3a counter driver found on Renesas RZ/G2L alike 98 SoCs. This IP supports both 16-bit and 32-bit phase counting mode 99 support. 100 101 To compile this driver as a module, choose M here: the 102 module will be called rz-mtu3-cnt. 103 104config STM32_LPTIMER_CNT 105 tristate "STM32 LP Timer encoder counter driver" 106 depends on MFD_STM32_LPTIMER || COMPILE_TEST 107 help 108 Select this option to enable STM32 Low-Power Timer quadrature encoder 109 and counter driver. 110 111 To compile this driver as a module, choose M here: the 112 module will be called stm32-lptimer-cnt. 113 114config STM32_TIMER_CNT 115 tristate "STM32 Timer encoder counter driver" 116 depends on MFD_STM32_TIMERS || COMPILE_TEST 117 help 118 Select this option to enable STM32 Timer quadrature encoder 119 and counter driver. 120 121 To compile this driver as a module, choose M here: the 122 module will be called stm32-timer-cnt. 123 124config TI_ECAP_CAPTURE 125 tristate "TI eCAP capture driver" 126 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST 127 depends on HAS_IOMEM 128 select REGMAP_MMIO 129 help 130 Select this option to enable the Texas Instruments Enhanced Capture 131 (eCAP) driver in input mode. 132 133 It can be used to timestamp events (falling/rising edges) detected 134 on ECAP input signal. 135 136 To compile this driver as a module, choose M here: the module 137 will be called ti-ecap-capture. 138 139config TI_EQEP 140 tristate "TI eQEP counter driver" 141 depends on (SOC_AM33XX || COMPILE_TEST) 142 select REGMAP_MMIO 143 help 144 Select this option to enable the Texas Instruments Enhanced Quadrature 145 Encoder Pulse (eQEP) counter driver. 146 147 To compile this driver as a module, choose M here: the module will be 148 called ti-eqep. 149 150endif # COUNTER 151