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/Linux-v6.1/drivers/net/ethernet/qualcomm/
Dqca_7k.c48 struct spi_transfer transfer[2]; in qcaspi_read_register() local
52 memset(transfer, 0, sizeof(transfer)); in qcaspi_read_register()
59 transfer[0].tx_buf = &tx_data; in qcaspi_read_register()
60 transfer[0].len = QCASPI_CMD_LEN; in qcaspi_read_register()
61 transfer[1].rx_buf = &rx_data; in qcaspi_read_register()
62 transfer[1].len = QCASPI_CMD_LEN; in qcaspi_read_register()
64 spi_message_add_tail(&transfer[0], &msg); in qcaspi_read_register()
70 spi_message_add_tail(&transfer[1], &msg); in qcaspi_read_register()
88 struct spi_transfer transfer[2]; in __qcaspi_write_register() local
92 memset(&transfer, 0, sizeof(transfer)); in __qcaspi_write_register()
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Dqca_spi.c109 struct spi_transfer transfer[2]; in qcaspi_write_burst() local
112 memset(&transfer, 0, sizeof(transfer)); in qcaspi_write_burst()
116 transfer[0].tx_buf = &cmd; in qcaspi_write_burst()
117 transfer[0].len = QCASPI_CMD_LEN; in qcaspi_write_burst()
118 transfer[1].tx_buf = src; in qcaspi_write_burst()
119 transfer[1].len = len; in qcaspi_write_burst()
121 spi_message_add_tail(&transfer[0], &msg); in qcaspi_write_burst()
122 spi_message_add_tail(&transfer[1], &msg); in qcaspi_write_burst()
137 struct spi_transfer transfer; in qcaspi_write_legacy() local
140 memset(&transfer, 0, sizeof(transfer)); in qcaspi_write_legacy()
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/Linux-v6.1/drivers/mtd/devices/
Dmchp23k256.c64 struct spi_transfer transfer[2] = {}; in mchp23k256_write() local
76 transfer[0].tx_buf = command; in mchp23k256_write()
77 transfer[0].len = cmd_len; in mchp23k256_write()
78 spi_message_add_tail(&transfer[0], &message); in mchp23k256_write()
80 transfer[1].tx_buf = buf; in mchp23k256_write()
81 transfer[1].len = len; in mchp23k256_write()
82 spi_message_add_tail(&transfer[1], &message); in mchp23k256_write()
103 struct spi_transfer transfer[2] = {}; in mchp23k256_read() local
112 memset(&transfer, 0, sizeof(transfer)); in mchp23k256_read()
116 transfer[0].tx_buf = command; in mchp23k256_read()
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Dsst25l.c210 struct spi_transfer transfer[2]; in sst25l_read() local
216 memset(&transfer, 0, sizeof(transfer)); in sst25l_read()
223 transfer[0].tx_buf = command; in sst25l_read()
224 transfer[0].len = sizeof(command); in sst25l_read()
225 spi_message_add_tail(&transfer[0], &message); in sst25l_read()
227 transfer[1].rx_buf = buf; in sst25l_read()
228 transfer[1].len = len; in sst25l_read()
229 spi_message_add_tail(&transfer[1], &message); in sst25l_read()
/Linux-v6.1/drivers/net/wireless/ralink/rt2x00/
Drt2x00crypto.c152 unsigned int transfer = 0; in rt2x00crypto_rx_insert_iv() local
194 memmove(skb->data + transfer, in rt2x00crypto_rx_insert_iv()
195 skb->data + transfer + (iv_len - align), in rt2x00crypto_rx_insert_iv()
197 transfer += header_length; in rt2x00crypto_rx_insert_iv()
206 memmove(skb->data + transfer, in rt2x00crypto_rx_insert_iv()
207 skb->data + transfer + iv_len + align, in rt2x00crypto_rx_insert_iv()
209 transfer += header_length; in rt2x00crypto_rx_insert_iv()
213 memcpy(skb->data + transfer, rxdesc->iv, iv_len); in rt2x00crypto_rx_insert_iv()
214 transfer += iv_len; in rt2x00crypto_rx_insert_iv()
221 memmove(skb->data + transfer, in rt2x00crypto_rx_insert_iv()
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/Linux-v6.1/drivers/usb/image/
Dmicrotek.c191 MTS_DEBUG("transfer = 0x%x context = 0x%x\n",(int)transfer,(int)context ); \
192 …status = 0x%x data-length = 0x%x sent = 0x%x\n",transfer->status,(int)context->data_length, (int)t…
208 struct mts_transfer_context* context = (struct mts_transfer_context*)transfer->context; \
367 static void mts_transfer_cleanup( struct urb *transfer );
368 static void mts_do_sg(struct urb * transfer);
371 void mts_int_submit_urb (struct urb* transfer, in mts_int_submit_urb() argument
384 usb_fill_bulk_urb(transfer, in mts_int_submit_urb()
393 res = usb_submit_urb( transfer, GFP_ATOMIC ); in mts_int_submit_urb()
397 mts_transfer_cleanup(transfer); in mts_int_submit_urb()
402 static void mts_transfer_cleanup( struct urb *transfer ) in mts_transfer_cleanup() argument
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/Linux-v6.1/Documentation/driver-api/dmaengine/
Dpxa_dma.rst9 A driver submitting a transfer and issuing it should be granted the transfer
11 This implies that the queuing doesn't wait for the previous transfer end,
13 triggered by the end of the transfer.
14 A transfer which is submitted and issued on a phy doesn't wait for a phy to
17 a new transfer.
20 Any issued transfer with DMA_PREP_INTERRUPT should trigger a callback call.
27 multimedia case, such as video capture, if a transfer is submitted and then
28 a check of the DMA channel reports a "stopped channel", the transfer should
44 assigned on the fly when the transfer is issued.
46 b) Transfer anatomy for a scatter-gather transfer
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Dprovider.rst21 will want to start a transfer, it will assert a DMA request (DRQ) by
25 parameter: the transfer size. At each clock cycle, it would transfer a
26 byte of data from one buffer to another, until the transfer size has
31 cycle. For example, we may want to transfer as much data as the
36 parameter called the transfer width.
44 transfer into smaller sub-transfers.
59 transfer, and whenever the transfer is started, the controller will go
73 transfer width and the transfer size.
118 should contain a bitmask of the supported source transfer width
121 should contain a bitmask of the supported destination transfer width
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/Linux-v6.1/drivers/staging/greybus/tools/
DREADME.loopback27 size - payload size of the transfer.
35 3 - transfer
79 -t must be one of the test names - sink, transfer or ping
102 * Run a 1000 transfers of a 100 byte packet. Each transfer is started only
148 * Run a transfer test 10 iterations of size 100 bytes on all available devices
149 #/loopback_test -t transfer -i 10 -s 100
150 …1970-1-1 0:10:7,transfer,1-4.17,100,10,0,443,509,471.700012,66,1963,2256,2124.600098,293,102776,11…
151 …1970-1-1 0:10:7,transfer,1-5.17,100,10,0,399,542,463.399994,143,1845,2505,2175.800049,660,92568,12…
155 #/loopback_test -t transfer -i 10 -s 100 -a
156 …1970-1-1 0:10:35,transfer,1-4.17,100,10,0,448,580,494.100006,132,1722,2230,2039.400024,508,103936,…
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/Linux-v6.1/drivers/spi/
Dspi-fsi.c299 struct spi_transfer *transfer) in fsi_spi_transfer_data() argument
306 if (transfer->tx_buf) { in fsi_spi_transfer_data()
310 const u8 *tx = transfer->tx_buf; in fsi_spi_transfer_data()
312 while (transfer->len > sent) { in fsi_spi_transfer_data()
314 (int)transfer->len - sent); in fsi_spi_transfer_data()
333 } else if (transfer->rx_buf) { in fsi_spi_transfer_data()
336 u8 *rx = transfer->rx_buf; in fsi_spi_transfer_data()
338 while (transfer->len > recv) { in fsi_spi_transfer_data()
355 (int)transfer->len - recv); in fsi_spi_transfer_data()
430 struct spi_transfer *transfer; in fsi_spi_transfer_one_message() local
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Dspi-cadence.c248 struct spi_transfer *transfer) in cdns_spi_config_clock_freq() argument
259 if (xspi->speed_hz != transfer->speed_hz) { in cdns_spi_config_clock_freq()
263 (frequency / (2 << baud_rate_val)) > transfer->speed_hz) in cdns_spi_config_clock_freq()
286 struct spi_transfer *transfer) in cdns_spi_setup_transfer() argument
290 cdns_spi_config_clock_freq(spi, transfer); in cdns_spi_setup_transfer()
413 struct spi_transfer *transfer) in cdns_transfer_one() argument
417 xspi->txbuf = transfer->tx_buf; in cdns_transfer_one()
418 xspi->rxbuf = transfer->rx_buf; in cdns_transfer_one()
419 xspi->tx_bytes = transfer->len; in cdns_transfer_one()
420 xspi->rx_bytes = transfer->len; in cdns_transfer_one()
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Dspi-mpc52xx.c85 struct spi_transfer *transfer; /* current transfer */ member
118 ms->rx_buf = ms->transfer->rx_buf; in mpc52xx_spi_start_transfer()
119 ms->tx_buf = ms->transfer->tx_buf; in mpc52xx_spi_start_transfer()
120 ms->len = ms->transfer->len; in mpc52xx_spi_start_transfer()
125 ms->cs_change = ms->transfer->cs_change; in mpc52xx_spi_start_transfer()
197 ms->transfer = container_of(ms->message->transfers.next, in mpc52xx_spi_fsmstate_idle()
256 if (ms->transfer->delay.unit == SPI_DELAY_UNIT_USECS) in mpc52xx_spi_fsmstate_transfer()
257 ms->timestamp += ms->transfer->delay.value * in mpc52xx_spi_fsmstate_transfer()
289 ms->message->actual_length += ms->transfer->len; in mpc52xx_spi_fsmstate_wait()
294 if (ms->transfer->transfer_list.next == &ms->message->transfers) { in mpc52xx_spi_fsmstate_wait()
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Dspi-stm32-qspi.c562 struct spi_transfer *transfer; in stm32_qspi_transfer_one_message() local
578 list_for_each_entry(transfer, &msg->transfers, transfer_list) { in stm32_qspi_transfer_one_message()
584 transfer->tx_buf, transfer->tx_nbits, in stm32_qspi_transfer_one_message()
585 transfer->rx_buf, transfer->rx_nbits, in stm32_qspi_transfer_one_message()
586 transfer->len, transfer->dummy_data); in stm32_qspi_transfer_one_message()
593 if (transfer->dummy_data) { in stm32_qspi_transfer_one_message()
594 op.dummy.buswidth = transfer->tx_nbits; in stm32_qspi_transfer_one_message()
595 op.dummy.nbytes = transfer->len; in stm32_qspi_transfer_one_message()
596 dummy_bytes = transfer->len; in stm32_qspi_transfer_one_message()
599 if (list_is_last(&transfer->transfer_list, &msg->transfers)) { in stm32_qspi_transfer_one_message()
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Dspi-pic32.c497 struct spi_transfer *transfer) in pic32_spi_one_transfer() argument
507 if (transfer->bits_per_word && in pic32_spi_one_transfer()
508 (transfer->bits_per_word != pic32s->bits_per_word)) { in pic32_spi_one_transfer()
509 ret = pic32_spi_set_word_size(pic32s, transfer->bits_per_word); in pic32_spi_one_transfer()
512 pic32s->bits_per_word = transfer->bits_per_word; in pic32_spi_one_transfer()
516 if (transfer->speed_hz && (transfer->speed_hz != pic32s->speed_hz)) { in pic32_spi_one_transfer()
517 pic32_spi_set_clk_rate(pic32s, transfer->speed_hz); in pic32_spi_one_transfer()
518 pic32s->speed_hz = transfer->speed_hz; in pic32_spi_one_transfer()
524 if (transfer->rx_sg.nents && transfer->tx_sg.nents) { in pic32_spi_one_transfer()
525 ret = pic32_spi_dma_transfer(pic32s, transfer); in pic32_spi_one_transfer()
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Dspi-hisi-kunpeng.c216 static u8 hisi_spi_n_bytes(struct spi_transfer *transfer) in hisi_spi_n_bytes() argument
218 if (transfer->bits_per_word <= 8) in hisi_spi_n_bytes()
220 else if (transfer->bits_per_word <= 16) in hisi_spi_n_bytes()
377 struct spi_device *spi, struct spi_transfer *transfer) in hisi_spi_transfer_one() argument
384 transfer->effective_speed_hz = in hisi_spi_transfer_one()
385 hisi_calc_effective_speed(master, chip, transfer->speed_hz); in hisi_spi_transfer_one()
388 cr |= FIELD_PREP(CR_BPW_MASK, transfer->bits_per_word - 1); in hisi_spi_transfer_one()
393 hs->n_bytes = hisi_spi_n_bytes(transfer); in hisi_spi_transfer_one()
394 hs->tx = transfer->tx_buf; in hisi_spi_transfer_one()
395 hs->tx_len = transfer->len / hs->n_bytes; in hisi_spi_transfer_one()
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Dspi-imx.c235 struct spi_transfer *transfer) in spi_imx_can_dma() argument
248 if (transfer->len < spi_imx->devtype_data->fifo_size) in spi_imx_can_dma()
1373 struct spi_transfer *transfer) in spi_imx_dma_transfer() argument
1379 struct sg_table *tx = &transfer->tx_sg, *rx = &transfer->rx_sg; in spi_imx_dma_transfer()
1385 bytes_per_word = spi_imx_bytes_per_word(transfer->bits_per_word); in spi_imx_dma_transfer()
1440 transfer_timeout = spi_imx_calculate_timeout(spi_imx, transfer->len); in spi_imx_dma_transfer()
1464 transfer->error |= SPI_TRANS_FAIL_NO_START; in spi_imx_dma_transfer()
1469 struct spi_transfer *transfer) in spi_imx_pio_transfer() argument
1475 spi_imx->tx_buf = transfer->tx_buf; in spi_imx_pio_transfer()
1476 spi_imx->rx_buf = transfer->rx_buf; in spi_imx_pio_transfer()
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/Linux-v6.1/drivers/usb/gadget/udc/
Dmax3420_udc.c204 struct spi_transfer transfer; in spi_ack_ctrl() local
208 memset(&transfer, 0, sizeof(transfer)); in spi_ack_ctrl()
213 transfer.tx_buf = txdata; in spi_ack_ctrl()
214 transfer.len = 1; in spi_ack_ctrl()
216 spi_message_add_tail(&transfer, &msg); in spi_ack_ctrl()
223 struct spi_transfer transfer; in spi_rd8_ack() local
227 memset(&transfer, 0, sizeof(transfer)); in spi_rd8_ack()
232 transfer.tx_buf = txdata; in spi_rd8_ack()
233 transfer.rx_buf = rxdata; in spi_rd8_ack()
234 transfer.len = 2; in spi_rd8_ack()
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/Linux-v6.1/Documentation/userspace-api/media/v4l/
Dcolorspaces-defs.rst9 which defines the chromaticities, the default transfer function, the
11 is the transfer function identifier (enum
13 transfer functions. The third is the Y'CbCr encoding identifier (enum
87 - Use the default transfer function as defined by the colorspace.
89 - Use the Rec. 709 transfer function.
91 - Use the sRGB transfer function.
93 - Use the opRGB transfer function.
95 - Use the SMPTE 240M transfer function.
97 - Do not use a transfer function (i.e. use linear RGB values).
99 - Use the DCI-P3 transfer function.
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/Linux-v6.1/drivers/net/wireless/rsi/
Drsi_91x_usb.c49 int transfer; in rsi_usb_card_write() local
55 transfer = len; in rsi_usb_card_write()
60 &transfer, in rsi_usb_card_write()
367 u16 transfer; in rsi_usb_read_register_multiple() local
378 transfer = min_t(u16, count, RSI_USB_BUF_SIZE); in rsi_usb_read_register_multiple()
385 transfer, USB_CTRL_GET_TIMEOUT); in rsi_usb_read_register_multiple()
393 memcpy(data, buf, transfer); in rsi_usb_read_register_multiple()
394 count -= transfer; in rsi_usb_read_register_multiple()
395 data += transfer; in rsi_usb_read_register_multiple()
396 addr += transfer; in rsi_usb_read_register_multiple()
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/Linux-v6.1/Documentation/driver-api/usb/
Derror-codes.rst13 behave the same except for transfer speed dependent behaviors and the
42 ``-EINVAL`` a) Invalid transfer type specified (or not supported)
43 b) Invalid or unsupported periodic transfer interval
44 c) ISO: attempted to change transfer interval
61 (c) requested data transfer length is invalid: negative
87 A transfer's actual_length may be positive even when an error has been
132 to indicate timeout expired before the transfer
140 ``-ECOMM`` During an IN transfer, the host controller
144 ``-ENOSR`` During an OUT transfer, the host controller
161 ``-EXDEV`` ISO transfer only partially completed
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/Linux-v6.1/Documentation/mhi/
Dtopology.rst16 It is however not involved in the actual data transfer as the data transfer
57 * Prepares the device for transfer by calling mhi_prepare_for_transfer.
58 * Initiates data transfer by calling mhi_queue_transfer.
59 * Once the data transfer is finished, calls mhi_unprepare_from_transfer to
60 end data transfer.
Dmhi.rst59 transfer rings are organized as a circular queue of Transfer Descriptors (TD).
81 Two unidirectional channels with their associated transfer rings form a
85 transfer ring.
91 Transfer Descriptors (TD). TDs are managed through transfer rings, which are
93 memory. TDs consist of one or more ring elements (or transfer blocks)::
101 Below is the basic usage of transfer rings:
103 * Host allocates memory for transfer ring.
118 data transfer completion status, command completion status, and state changes
120 memory. EDs consist of one or more ring elements (or transfer blocks)::
143 A Ring Element is a data structure used to transfer a single block
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/Linux-v6.1/drivers/usb/host/
Dmax3421-hcd.c351 struct spi_transfer transfer; in spi_rd8() local
354 memset(&transfer, 0, sizeof(transfer)); in spi_rd8()
362 transfer.tx_buf = max3421_hcd->tx->data; in spi_rd8()
363 transfer.rx_buf = max3421_hcd->rx->data; in spi_rd8()
364 transfer.len = 2; in spi_rd8()
366 spi_message_add_tail(&transfer, &msg); in spi_rd8()
377 struct spi_transfer transfer; in spi_wr8() local
380 memset(&transfer, 0, sizeof(transfer)); in spi_wr8()
389 transfer.tx_buf = max3421_hcd->tx->data; in spi_wr8()
390 transfer.len = 2; in spi_wr8()
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/Linux-v6.1/drivers/iio/adc/
Dmcp320x.c87 struct spi_transfer transfer[2]; member
400 adc->transfer[0].tx_buf = &adc->tx_buf; in mcp320x_probe()
401 adc->transfer[0].len = sizeof(adc->tx_buf); in mcp320x_probe()
402 adc->transfer[1].rx_buf = adc->rx_buf; in mcp320x_probe()
403 adc->transfer[1].len = DIV_ROUND_UP(chip_info->resolution, 8); in mcp320x_probe()
408 &adc->transfer[1], 1); in mcp320x_probe()
410 spi_message_init_with_transfers(&adc->msg, adc->transfer, in mcp320x_probe()
411 ARRAY_SIZE(adc->transfer)); in mcp320x_probe()
420 adc->transfer[1].len++; in mcp320x_probe()
/Linux-v6.1/drivers/mmc/host/
Dlitex_mmc.c124 u8 cmd, u32 arg, u8 response_len, u8 transfer) in litex_mmc_send_cmd() argument
133 cmd << 8 | transfer << 5 | response_len); in litex_mmc_send_cmd()
141 (transfer != SD_CTL_DATA_XFER_NONE || in litex_mmc_send_cmd()
169 if (transfer == SD_CTL_DATA_XFER_NONE) in litex_mmc_send_cmd()
179 reg = (transfer == SD_CTL_DATA_XFER_READ) ? in litex_mmc_send_cmd()
292 unsigned int *len, bool *direct, u8 *transfer) in litex_mmc_do_dma() argument
319 *transfer = SD_CTL_DATA_XFER_READ; in litex_mmc_do_dma()
328 *transfer = SD_CTL_DATA_XFER_WRITE; in litex_mmc_do_dma()
350 u8 transfer = SD_CTL_DATA_XFER_NONE; in litex_mmc_request() local
385 litex_mmc_do_dma(host, data, &len, &direct, &transfer); in litex_mmc_request()
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