1 # SPDX-License-Identifier: GPL-2.0-only
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
19 If built as a module its name will be i8254.
22 tristate "Counter support"
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.
31 tristate "ACCES 104-QUAD-8 driver"
32 depends on (PC104 && X86) || COMPILE_TEST
33 depends on HAS_IOPORT_MAP
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).
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
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.
50 tristate "Flex Timer Module Quadrature decoder driver"
51 depends on SOC_LS1021A || COMPILE_TEST
52 depends on HAS_IOMEM && OF
54 Select this option to enable the Flex Timer Quadrature decoder
57 To compile this driver as a module, choose M here: the
58 module will be called ftm-quaddec.
61 tristate "Intel Quadrature Encoder Peripheral driver"
65 Select this option to enable the Intel Quadrature Encoder Peripheral
68 To compile this driver as a module, choose M here: the module
69 will be called intel-qep.
72 tristate "Interrupt counter driver"
75 Select this option to enable interrupt counter driver. Any interrupt
76 source can be used by this driver as the event source.
78 To compile this driver as a module, choose M here: the
79 module will be called interrupt-cnt.
81 config 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
87 Select this option to enable the Microchip Timer Counter Block
90 To compile this driver as a module, choose M here: the
91 module will be called microchip-tcb-capture.
94 tristate "Renesas RZ/G2L MTU3a counter driver"
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
101 To compile this driver as a module, choose M here: the
102 module will be called rz-mtu3-cnt.
104 config STM32_LPTIMER_CNT
105 tristate "STM32 LP Timer encoder counter driver"
106 depends on MFD_STM32_LPTIMER || COMPILE_TEST
108 Select this option to enable STM32 Low-Power Timer quadrature encoder
111 To compile this driver as a module, choose M here: the
112 module will be called stm32-lptimer-cnt.
114 config STM32_TIMER_CNT
115 tristate "STM32 Timer encoder counter driver"
116 depends on MFD_STM32_TIMERS || COMPILE_TEST
118 Select this option to enable STM32 Timer quadrature encoder
121 To compile this driver as a module, choose M here: the
122 module will be called stm32-timer-cnt.
124 config TI_ECAP_CAPTURE
125 tristate "TI eCAP capture driver"
126 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
130 Select this option to enable the Texas Instruments Enhanced Capture
131 (eCAP) driver in input mode.
133 It can be used to timestamp events (falling/rising edges) detected
134 on ECAP input signal.
136 To compile this driver as a module, choose M here: the module
137 will be called ti-ecap-capture.
140 tristate "TI eQEP counter driver"
141 depends on (SOC_AM33XX || COMPILE_TEST)
144 Select this option to enable the Texas Instruments Enhanced Quadrature
145 Encoder Pulse (eQEP) counter driver.
147 To compile this driver as a module, choose M here: the module will be