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
36 Say yes here to build support for the ACCES 104-QUAD-8 quadrature
37 encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).
39 A counter's respective error flag may be cleared by performing a write
40 operation on the respective count value attribute. The 104-QUAD-8
41 counters may be set either directly or via the counter's preset
44 The base port addresses for the devices may be configured via the base
45 array module parameter. The interrupt line numbers for the devices may
46 be configured via the irq array module parameter.
49 tristate "Flex Timer Module Quadrature decoder driver"
50 depends on SOC_LS1021A || COMPILE_TEST
51 depends on HAS_IOMEM && OF
53 Select this option to enable the Flex Timer Quadrature decoder
56 To compile this driver as a module, choose M here: the
57 module will be called ftm-quaddec.
60 tristate "Intel Quadrature Encoder Peripheral driver"
64 Select this option to enable the Intel Quadrature Encoder Peripheral
67 To compile this driver as a module, choose M here: the module
68 will be called intel-qep.
71 tristate "Interrupt counter driver"
74 Select this option to enable interrupt counter driver. Any interrupt
75 source can be used by this driver as the event source.
77 To compile this driver as a module, choose M here: the
78 module will be called interrupt-cnt.
80 config MICROCHIP_TCB_CAPTURE
81 tristate "Microchip Timer Counter Capture driver"
82 depends on SOC_AT91SAM9 || SOC_SAM_V7 || COMPILE_TEST
83 depends on HAS_IOMEM && OF
86 Select this option to enable the Microchip Timer Counter Block
89 To compile this driver as a module, choose M here: the
90 module will be called microchip-tcb-capture.
93 tristate "Renesas RZ/G2L MTU3a counter driver"
94 depends on RZ_MTU3 || COMPILE_TEST
96 Enable support for MTU3a counter driver found on Renesas RZ/G2L alike
97 SoCs. This IP supports both 16-bit and 32-bit phase counting mode
100 To compile this driver as a module, choose M here: the
101 module will be called rz-mtu3-cnt.
103 config STM32_LPTIMER_CNT
104 tristate "STM32 LP Timer encoder counter driver"
105 depends on MFD_STM32_LPTIMER || COMPILE_TEST
107 Select this option to enable STM32 Low-Power Timer quadrature encoder
110 To compile this driver as a module, choose M here: the
111 module will be called stm32-lptimer-cnt.
113 config STM32_TIMER_CNT
114 tristate "STM32 Timer encoder counter driver"
115 depends on MFD_STM32_TIMERS || COMPILE_TEST
117 Select this option to enable STM32 Timer quadrature encoder
120 To compile this driver as a module, choose M here: the
121 module will be called stm32-timer-cnt.
123 config TI_ECAP_CAPTURE
124 tristate "TI eCAP capture driver"
125 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
129 Select this option to enable the Texas Instruments Enhanced Capture
130 (eCAP) driver in input mode.
132 It can be used to timestamp events (falling/rising edges) detected
133 on ECAP input signal.
135 To compile this driver as a module, choose M here: the module
136 will be called ti-ecap-capture.
139 tristate "TI eQEP counter driver"
140 depends on (SOC_AM33XX || COMPILE_TEST)
143 Select this option to enable the Texas Instruments Enhanced Quadrature
144 Encoder Pulse (eQEP) counter driver.
146 To compile this driver as a module, choose M here: the module will be