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Searched refs:PIO (Results 1 – 25 of 50) sorted by relevance

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/linux/drivers/net/wireless/broadcom/b43legacy/
H A DKconfig75 bool "DMA + PIO"
79 Include both, Direct Memory Access (DMA) and Programmed I/O (PIO)
82 default DMA is used, otherwise PIO is used.
91 This reduces the size of the driver module, by omitting the PIO code.
94 bool "PIO (Programmed I/O) only"
97 Only include Programmed I/O (PIO).
99 Please note that PIO transfers are slow (compared to DMA).
101 Also note that not all devices of the b43legacy series support PIO.
103 You should use PIO only if DMA does not work for you.
/linux/Documentation/w1/slaves/
H A Dw1_ds28e04.rst7 * Maxim DS28E04-100 4096-Bit Addressable 1-Wire EEPROM with PIO
35 PIO Access
39 The current status of the PIO's is returned as an 8 bit value. Bit 0/1
40 represent the state of PIO_0/PIO_1. Bits 2..7 do not care. The PIO's are
H A Dw1_ds2413.rst20 The DS2413 chip has two open-drain outputs (PIO A and PIO B).
40 You can set the PIO pins using the "output" file.
56 When writing output, the master must repeat the PIO Output Data byte in
H A Dw1_ds2406.rst21 current state of each switch, with PIO A in bit 0 and PIO B in bit 1. The
23 work with. output is writable; bits 0 and 1 control PIO A and B,
/linux/Documentation/hid/
H A Dintel-thc-hid.rst95 | System Memory +---+--+ DMA | | PIO | |
111 PIO (Programmed I/O, defined in section 3.2) status and control, SPI bus configure, I2C subIP
114 THC provides two ways for driver to communicate with external Touch ICs: PIO and DMA.
115 PIO can let driver manually write/read data to/from Touch ICs, instead, THC DMA can
177 directly, THC needs to use PIO read (by setting SubIP read opcode) to I2C subIP APB registers'
178 value and use PIO write (by setting SubIP write opcode) to do a write operation.
225 Opcode (operation code) is used to tell THC or Touch IC what the operation will be, such as PIO
226 read or PIO write.
247 When THC is working in I2C mode, opcodes are used to tell THC what's the next PIO type:
263 3.2 PIO
[all …]
/linux/Documentation/devicetree/bindings/pinctrl/
H A Dpinctrl-st.txt4 PIO multiplexing block. Each pin supports GPIO functionality (ALT0)
9 Pull Up (PU) are driven by the related PIO block.
11 ST pinctrl driver controls PIO multiplexing block and also interacts with
114 Every PIO is represented with 4-7 parameters depending on retime configuration.
117 -bank : Should be bank phandle to which this PIO belongs.
118 -offset : Offset in the PIO bank.
/linux/sound/soc/dwc/
H A DKconfig14 bool "PCM PIO extension for I2S driver"
18 a PCM and uses PIO to transfer data.
/linux/drivers/net/ethernet/dlink/
H A DKconfig46 bool "Use MMIO instead of PIO"
50 Do NOT enable this by default, PIO (enabled when MMIO is disabled)
/linux/drivers/net/ethernet/via/
H A DKconfig37 bool "Use MMIO instead of PIO"
41 programmed I/O ports (PIO). Enabling this gives an improvement in
/linux/arch/arm/mach-sa1100/
H A DKconfig82 tristate "Generic PIO SSP"
84 Say Y here to enable support for the generic PIO SSP driver.
/linux/Documentation/ABI/stable/
H A Dsysfs-driver-w1_ds28e044 Description: read/write the contents of the two PIO's of the DS28E04-100
/linux/Documentation/driver-api/
H A Dlibata.rst49 Set PIO/DMA mode
91 values. Most drivers for taskfile-based hardware (PIO or MMIO) use
94 PIO data read/write
103 operation that actually copies the data bytes during a PIO data
450 ATA PIO
451 ATA_PROT_PIO is in this category. libata currently implements PIO
461 ATAPI PIO
472 :c:func:`ata_host_intr` invokes :c:func:`ata_qc_complete`, and, for PIO tasks,
567 - ATA errors are directly handled in the interrupt handler and PIO
644 - !BSY && !DRQ during PIO data transfer.
[all …]
/linux/Documentation/i2c/
H A Ddma-considerations.rst9 DMA for it will likely add more overhead than a plain PIO transfer.
51 buffer could not be allocated. Fall back to PIO in that case.
/linux/arch/mips/boot/dts/loongson/
H A Dloongson64v_4core_virtio.dts58 ranges = <0 0x10000000 0 0x10000000 0 0x10000000 /* PIO & CONF & APB */
/linux/drivers/w1/slaves/
H A DKconfig144 tristate "4096-Bit Addressable 1-Wire EEPROM with PIO (DS28E04-100)"
151 4kb EEPROM with PIO family device (DS28E04).
/linux/Documentation/translations/zh_CN/core-api/
H A Dworkqueue.rst53 如libata选择使用ST wq来轮询PIO，并接受一个不必要的限制，即没有两个轮
54 询PIO可以同时进行。由于MT wq并没有提供更好的并发性，需要更高层次的并
/linux/arch/arm/boot/dts/microchip/
H A Dat91-ariag25.dts108 atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
/linux/Documentation/networking/device_drivers/fddi/
H A Ddefza.rst31 the use of PIO. As a result under a heavy transmission load there will
/linux/lib/
H A DKconfig107 hosts which can not be accessed in MMIO mode. Using the logical PIO
109 logic PIO space shared with MMIO hosts, such as PCI/PCIe, then the
110 system can access the I/O devices with the mapped-logic PIO through
/linux/Documentation/virt/kvm/x86/
H A Dcpuid.rst48 on PIO operations
/linux/arch/arm/boot/dts/intel/ixp/
H A Dintel-ixp42x-gateworks-gw2348.dts87 * depending on selected PIO mode (0-4).
/linux/Documentation/admin-guide/
H A Dparport.rst254 - interrupt-driven, protocol in hardware using PIO
280 io=0x378 irq=7 dma=none (for PIO)
/linux/Documentation/devicetree/bindings/sound/
H A Dst,sti-asoc-card.txt107 - pinctrl-0: SPDIF PIO description.
/linux/drivers/usb/musb/
H A DKconfig129 bool 'Disable DMA (always use PIO)'
/linux/Documentation/scsi/
H A Dqlogicfas.rst10 (including the Control Concepts SCSI/IDE/SIO/PIO/FDC cards).

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