| /Linux-v5.15/Documentation/devicetree/bindings/serial/ |
| D | 8250_omap.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Vignesh Raghavendra <vigneshr@ti.com>
13 - $ref: /schemas/serial/serial.yaml#
14 - $ref: /schemas/serial/rs485.yaml#
19 - enum:
20 - ti,am3352-uart
21 - ti,am4372-uart
22 - ti,am654-uart
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| D | 8250.yaml | 3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - devicetree@vger.kernel.org
13 - $ref: serial.yaml#
14 - if:
16 - required:
17 - aspeed,lpc-io-reg
18 - required:
19 - aspeed,lpc-interrupts
20 - required:
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| /Linux-v5.15/Documentation/driver-api/serial/ |
| D | driver.rst | 10 The reference implementation is contained within amba-pl011.c.
15 --------------------------------
25 ---------------
38 -------
41 necessary locking using port->lock. There are some exceptions (which
44 There are two locks. A per-port spinlock, and an overall semaphore.
46 From the core driver perspective, the port->lock locks the following
49 port->mctrl
50 port->icount
51 port->state->xmit.head (circ_buf->head)
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| /Linux-v5.15/drivers/tty/serial/8250/ |
| D | 8250_of.c | 1 // SPDX-License-Identifier: GPL-2.0+
36 struct device_node *np = ofdev->dev.of_node; in of_platform_serial_setup()
37 struct uart_port *port = &up->port; in of_platform_serial_setup()
43 pm_runtime_enable(&ofdev->dev); in of_platform_serial_setup()
44 pm_runtime_get_sync(&ofdev->dev); in of_platform_serial_setup()
46 if (of_property_read_u32(np, "clock-frequency", &clk)) { in of_platform_serial_setup()
49 info->clk = devm_clk_get(&ofdev->dev, NULL); in of_platform_serial_setup()
50 if (IS_ERR(info->clk)) { in of_platform_serial_setup()
51 ret = PTR_ERR(info->clk); in of_platform_serial_setup()
52 if (ret != -EPROBE_DEFER) in of_platform_serial_setup()
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| D | 8250_omap.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * 8250-core based driver for the OMAP internal UART
5 * based on omap-serial.c, Copyright (C) 2010 Texas Instruments.
29 #include <linux/dma-mapping.h>
157 return readl(up->port.membase + (reg << up->port.regshift)); in uart_read()
163 struct omap8250_priv *priv = up->port.private_data; in omap8250_set_mctrl()
168 if (!mctrl_gpio_to_gpiod(up->gpios, UART_GPIO_RTS)) { in omap8250_set_mctrl()
175 if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS)) in omap8250_set_mctrl()
176 priv->efr |= UART_EFR_RTS; in omap8250_set_mctrl()
178 priv->efr &= ~UART_EFR_RTS; in omap8250_set_mctrl()
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| D | 8250_port.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Base port operations for 8250/16550-type serial ports
256 * tx_loadsz is set to 63-bytes instead of 64-bytes to implement
257 * workaround of errata A-008006 which states that tx_loadsz should
269 .name = "Palmchip BK-3103",
340 -1, /* UART_SCR (unmapped) */
349 -1, /* UART_LSR (unmapped) */
350 -1, /* UART_MSR (unmapped) */
351 -1, /* UART_SCR (unmapped) */
361 return __raw_readl(p->membase + (offset << p->regshift)); in au_serial_in()
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| /Linux-v5.15/drivers/usb/serial/ |
| D | generic.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2010 - 2013 Johan Hovold (jhovold@gmail.com)
6 * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
40 struct device *dev = &serial->interface->dev; in usb_serial_generic_probe()
42 dev_info(dev, "The \"generic\" usb-serial driver is only for testing and one-off prototypes.\n"); in usb_serial_generic_probe()
43 dev_info(dev, "Tell linux-usb@vger.kernel.org to add your device to a proper driver.\n"); in usb_serial_generic_probe()
51 struct device *dev = &serial->interface->dev; in usb_serial_generic_calc_num_ports()
54 num_ports = max(epds->num_bulk_in, epds->num_bulk_out); in usb_serial_generic_calc_num_ports()
58 return -ENODEV; in usb_serial_generic_calc_num_ports()
72 .throttle = usb_serial_generic_throttle,
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| D | ftdi_sio.c | 1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2009 - 2013
7 * Copyright (C) 1999 - 2001
8 * Greg Kroah-Hartman (greg@kroah.com)
13 * See Documentation/usb/usb-serial.rst for more information on using this
16 * See http://ftdi-usb-sio.sourceforge.net for up to date testing info
24 /* Bill Ryder - bryder@sgi.com - wrote the FTDI_SIO implementation */
28 assimilated :-) */
47 #define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober …
58 u16 last_set_data_value; /* the last data state set - needed for doing
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| /Linux-v5.15/Documentation/networking/ |
| D | can.rst | 2 SocketCAN - Controller Area Network
20 .. _socketcan-motivation:
29 functionality. Usually, there is only a hardware-specific device
32 Queueing of frames and higher-level transport protocols like ISO-TP
34 character-device implementations support only one single process to
47 protocol family module and also vice-versa. Also, the protocol family
57 communicate using a specific transport protocol, e.g. ISO-TP, just
60 CAN-IDs, frames, etc.
62 Similar functionality visible from user-space could be provided by a
74 * **Abstraction:** In most existing character-device implementations, the
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| /Linux-v5.15/drivers/scsi/aic7xxx/ |
| D | aic79xx_osm.c | 6 * --------------------------------------------------------------------------
7 * Copyright (c) 1994-2000 Justin T. Gibbs.
8 * Copyright (c) 1997-1999 Doug Ledford
9 * Copyright (c) 2000-2003 Adaptec Inc.
23 * 3. Neither the names of the above-listed copyright holders nor the names
76 * To change the default number of tagged transactions allowed per-device,
83 * Twin adapters will use indexes 0-7 for channel 0, and indexes 8-15
96 * The driver will throttle the number of commands dispatched to a
102 * depths. The driver will throttle back when the queue fulls occur and
110 * (0, 2-11, 13-15), disables tagged queueing for ID 12, and tells the
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| /Linux-v5.15/drivers/net/usb/ |
| D | usbnet.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2000-2005 by David Brownell
5 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
10 * kinds of full and high speed networking devices: host-to-host cables,
37 /*-------------------------------------------------------------------------*/
40 * Nineteen USB 1.1 max size bulk transactions per frame (ms), max.
51 #define RX_QLEN(dev) ((dev)->rx_qlen)
52 #define TX_QLEN(dev) ((dev)->tx_qlen)
57 /* throttle rx/tx briefly after some faults, so hub_wq might disconnect()
65 /*-------------------------------------------------------------------------*/
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| D | lan78xx.c | 1 // SPDX-License-Identifier: GPL-2.0+
106 /* time to wait between polling MAC or FCT state (ms) */
157 "RX 65 - 127 Byte Frames",
158 "RX 128 - 255 Byte Frames",
159 "RX 256 - 511 Bytes Frames",
160 "RX 512 - 1023 Byte Frames",
161 "RX 1024 - 1518 Byte Frames",
181 "TX 65 - 127 Byte Frames",
182 "TX 128 - 255 Byte Frames",
183 "TX 256 - 511 Bytes Frames",
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| /Linux-v5.15/drivers/usb/class/ |
| D | cdc-acm.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * cdc-acm.c
41 #include "cdc-acm.h"
71 mutex_lock(&acm->mutex); in acm_get_by_minor()
72 if (acm->disconnected) { in acm_get_by_minor()
73 mutex_unlock(&acm->mutex); in acm_get_by_minor()
76 tty_port_get(&acm->port); in acm_get_by_minor()
77 mutex_unlock(&acm->mutex); in acm_get_by_minor()
102 idr_remove(&acm_minors, acm->minor); in acm_release_minor()
115 retval = usb_autopm_get_interface(acm->control); in acm_ctrl_msg()
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| /Linux-v5.15/drivers/usb/host/ |
| D | xhci.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
19 #include <linux/io-64-nonatomic-lo-hi.h>
21 /* Code sharing between pci-quirks and xhci hcd */
22 #include "xhci-ext-caps.h"
23 #include "pci-quirks.h"
31 /* Max number of USB devices for any host controller - limit in section 6.1 */
33 /* Section 5.3.3 - MaxPorts */
43 * struct xhci_cap_regs - xHCI Host Controller Capability Registers.
45 * @hcs_params1: HCSPARAMS1 - Structural Parameters 1
46 * @hcs_params2: HCSPARAMS2 - Structural Parameters 2
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| D | fotg210-hcd.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 /* Faraday FOTG210 EHCI-like driver
6 * Author: Yuan-Hsin Chen <yhchen@faraday-tech.com>
7 * Feng-Hsin Chiang <john453@faraday-tech.com>
8 * Po-Yu Chuang <ratbert.chuang@gmail.com>
10 * Most of code borrowed from the Linux-3.7 EHCI driver
29 #include <linux/dma-mapping.h>
42 #define DRIVER_AUTHOR "Yuan-Hsin Chen"
50 #define FOTG210_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
51 #define FOTG210_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
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| D | oxu210hp-hcd.c | 1 // SPDX-License-Identifier: GPL-2.0+
6 * This code is *strongly* based on EHCI-HCD code by David Brownell since
7 * the chip is a quasi-EHCI compatible.
25 #include <linux/dma-mapping.h>
82 #define EHCI_TUNE_CERR 3 /* 0-3 qtd retries; 0 == don't stop */
83 #define EHCI_TUNE_RL_HS 4 /* nak throttle; see 4.9 */
85 #define EHCI_TUNE_MULT_HS 1 /* 1-3 transactions/uframe; 4.10.3 */
101 u32 hcs_params; /* HCSPARAMS - offset 0x4 */
110 u32 hcc_params; /* HCCPARAMS - offset 0x8 */
116 #define HCC_64BIT_ADDR(p) ((p)&(1)) /* true: can use 64-bit addr */
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| /Linux-v5.15/drivers/tty/serial/ |
| D | omap-serial.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Driver for OMAP-UART controller.
16 * this driver as required for the omap-platform.
37 #include <linux/platform_data/serial-omap.h>
78 #define OMAP_UART_DMA_CH_FREE -1
175 offset <<= up->port.regshift; in serial_in()
176 return readw(up->port.membase + offset); in serial_in()
181 offset <<= up->port.regshift; in serial_out()
182 writew(value, up->port.membase + offset); in serial_out()
196 struct omap_uart_port_info *pdata = dev_get_platdata(up->dev); in serial_omap_get_context_loss_count()
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| /Linux-v5.15/drivers/net/ethernet/intel/e1000/ |
| D | e1000_hw.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright(c) 1999 - 2006 Intel Corporation. */
297 #define E1000_MNG_DHCP_COMMAND_TIMEOUT 10 /* Time in ms to process MNG command */
425 /* MAC decode size is 128K - This is the size of BAR0 */
446 (MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE)
489 * E1000_RAR_ENTRIES - 1 multicast addresses.
506 /* Receive Descriptor - Extended */
532 /* Receive Descriptor - Packet Split */
556 __le16 length[3]; /* length of buffers 1-3 */
570 #define E1000_RXD_STAT_PIF 0x80 /* passed in-exact filter */
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| /Linux-v5.15/drivers/tty/ |
| D | mxser.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * mxser.c -- MOXA Smartio/Industio family multiport serial driver.
5 * Copyright (C) 1999-2006 Moxa Technologies (support@moxa.com).
6 * Copyright (C) 2006-2008 Jiri Slaby <jirislaby@gmail.com>
15 * - Fixed x86_64 cleanness
45 * Semi-public control interfaces
62 /* --------------------------------------------------- */
326 u8 oldlcr = mxser_must_select_bank(info->ioaddr, MOXA_MUST_EFR_BANK1); in mxser_set_must_fifo_value()
327 outb(info->rx_high_water, info->ioaddr + MOXA_MUST_RBRTH_REGISTER); in mxser_set_must_fifo_value()
328 outb(info->rx_high_water, info->ioaddr + MOXA_MUST_RBRTI_REGISTER); in mxser_set_must_fifo_value()
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| /Linux-v5.15/kernel/sched/ |
| D | fair.c | 1 // SPDX-License-Identifier: GPL-2.0
26 * Targeted preemption latency for CPU-bound tasks:
29 * 'timeslice length' - timeslices in CFS are of variable length
30 * and have no persistent notion like in traditional, time-slice
34 * run vmstat and monitor the context-switches (cs) field)
36 * (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds)
42 * The initial- and re-scaling of tunables is configurable
46 * SCHED_TUNABLESCALING_NONE - unscaled, always *1
47 * SCHED_TUNABLESCALING_LOG - scaled logarithmical, *1+ilog(ncpus)
48 * SCHED_TUNABLESCALING_LINEAR - scaled linear, *ncpus
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| /Linux-v5.15/drivers/staging/media/atomisp/pci/ |
| D | atomisp_cmd.c | 1 // SPDX-License-Identifier: GPL-2.0
32 #include <media/v4l2-event.h>
33 #include <media/videobuf-vmalloc.h>
43 #include "atomisp-regs.h"
67 * At 15fps this means 133ms. We set the timeout a bit longer.
71 #define FLASH_TIMEOUT 800 /* ms */
85 * get sensor:dis71430/ov2720 related info from v4l2_subdev->priv data field.
86 * subdev->priv is set in mrst.c
114 struct atomisp_device *isp = asd->isp; in atomisp_get_sensor_fps()
119 ret = v4l2_subdev_call(isp->inputs[asd->input_curr].camera, in atomisp_get_sensor_fps()
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