Lines Matching full:fifo
98 struct usbhs_fifo *fifo);
99 static struct dma_chan *usbhsf_dma_chan_get(struct usbhs_fifo *fifo,
109 struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); in usbhs_pkt_pop() local
123 if (fifo) in usbhs_pkt_pop()
124 chan = usbhsf_dma_chan_get(fifo, pkt); in usbhs_pkt_pop()
141 if (fifo) in usbhs_pkt_pop()
142 usbhsf_fifo_unselect(pipe, fifo); in usbhs_pkt_pop()
253 * FIFO ctrl
256 struct usbhs_fifo *fifo) in usbhsf_send_terminator() argument
260 usbhs_bset(priv, fifo->ctr, BVAL, BVAL); in usbhsf_send_terminator()
264 struct usbhs_fifo *fifo) in usbhsf_fifo_barrier() argument
266 /* The FIFO port is accessible */ in usbhsf_fifo_barrier()
267 if (usbhs_read(priv, fifo->ctr) & FRDY) in usbhsf_fifo_barrier()
274 struct usbhs_fifo *fifo) in usbhsf_fifo_clear() argument
288 ret = usbhsf_fifo_barrier(priv, fifo); in usbhsf_fifo_clear()
296 usbhs_write(priv, fifo->ctr, BCLR); in usbhsf_fifo_clear()
300 struct usbhs_fifo *fifo) in usbhsf_fifo_rcv_len() argument
302 return usbhs_read(priv, fifo->ctr) & DTLN_MASK; in usbhsf_fifo_rcv_len()
306 struct usbhs_fifo *fifo) in usbhsf_fifo_unselect() argument
311 usbhs_write(priv, fifo->sel, 0); in usbhsf_fifo_unselect()
315 struct usbhs_fifo *fifo, in usbhsf_fifo_select() argument
325 usbhsf_fifo_is_busy(fifo)) in usbhsf_fifo_select()
336 usbhs_write(priv, fifo->sel, base | MBW_32); in usbhsf_fifo_select()
340 if (base == (mask & usbhs_read(priv, fifo->sel))) { in usbhsf_fifo_select()
341 usbhs_pipe_select_fifo(pipe, fifo); in usbhsf_fifo_select()
347 dev_err(dev, "fifo select error\n"); in usbhsf_fifo_select()
359 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ in usbhs_dcp_dir_switch_to_write() local
365 ret = usbhsf_fifo_select(pipe, fifo, 1); in usbhs_dcp_dir_switch_to_write()
373 usbhsf_fifo_clear(pipe, fifo); in usbhs_dcp_dir_switch_to_write()
374 usbhsf_send_terminator(pipe, fifo); in usbhs_dcp_dir_switch_to_write()
376 usbhsf_fifo_unselect(pipe, fifo); in usbhs_dcp_dir_switch_to_write()
388 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ in usbhs_dcp_dir_switch_to_read() local
394 ret = usbhsf_fifo_select(pipe, fifo, 0); in usbhs_dcp_dir_switch_to_read()
401 usbhsf_fifo_clear(pipe, fifo); in usbhs_dcp_dir_switch_to_read()
403 usbhsf_fifo_unselect(pipe, fifo); in usbhs_dcp_dir_switch_to_read()
466 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); in usbhsf_dcp_data_stage_prepare_pop() local
474 * - clear fifo in usbhsf_dcp_data_stage_prepare_pop()
481 usbhsf_fifo_select(pipe, fifo, 0); in usbhsf_dcp_data_stage_prepare_pop()
482 usbhsf_fifo_clear(pipe, fifo); in usbhsf_dcp_data_stage_prepare_pop()
483 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_dcp_data_stage_prepare_pop()
505 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ in usbhsf_pio_try_push() local
506 void __iomem *addr = priv->base + fifo->port; in usbhsf_pio_try_push()
518 ret = usbhsf_fifo_select(pipe, fifo, 1); in usbhsf_pio_try_push()
529 ret = usbhsf_fifo_barrier(priv, fifo); in usbhsf_pio_try_push()
575 usbhsf_send_terminator(pipe, fifo); in usbhsf_pio_try_push()
585 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_pio_try_push()
590 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_pio_try_push()
622 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); in usbhsf_prepare_pop() local
637 usbhsf_fifo_clear(pipe, fifo); in usbhsf_prepare_pop()
652 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ in usbhsf_pio_try_pop() local
653 void __iomem *addr = priv->base + fifo->port; in usbhsf_pio_try_pop()
661 ret = usbhsf_fifo_select(pipe, fifo, 0); in usbhsf_pio_try_pop()
665 ret = usbhsf_fifo_barrier(priv, fifo); in usbhsf_pio_try_pop()
669 rcv_len = usbhsf_fifo_rcv_len(priv, fifo); in usbhsf_pio_try_pop()
702 * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function" in usbhsf_pio_try_pop()
706 usbhsf_fifo_clear(pipe, fifo); in usbhsf_pio_try_pop()
735 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_pio_try_pop()
763 * DMA fifo functions
765 static struct dma_chan *usbhsf_dma_chan_get(struct usbhs_fifo *fifo, in usbhsf_dma_chan_get() argument
769 return fifo->tx_chan; in usbhsf_dma_chan_get()
772 return fifo->rx_chan; in usbhsf_dma_chan_get()
780 struct usbhs_fifo *fifo; in usbhsf_get_dma_fifo() local
783 usbhs_for_each_dfifo(priv, fifo, i) { in usbhsf_get_dma_fifo()
784 if (usbhsf_dma_chan_get(fifo, pkt) && in usbhsf_get_dma_fifo()
785 !usbhsf_fifo_is_busy(fifo)) in usbhsf_get_dma_fifo()
786 return fifo; in usbhsf_get_dma_fifo()
795 struct usbhs_fifo *fifo, in __usbhsf_dma_ctrl() argument
800 usbhs_bset(priv, fifo->sel, DREQE, dreqe); in __usbhsf_dma_ctrl()
808 struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); in __usbhsf_dma_map_ctrl() local
809 struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt); in __usbhsf_dma_map_ctrl()
819 struct usbhs_fifo *fifo; in usbhsf_dma_xfer_preparing() local
827 fifo = usbhs_pipe_to_fifo(pipe); in usbhsf_dma_xfer_preparing()
828 if (!fifo) in usbhsf_dma_xfer_preparing()
831 chan = usbhsf_dma_chan_get(fifo, pkt); in usbhsf_dma_xfer_preparing()
850 fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero); in usbhsf_dma_xfer_preparing()
855 usbhsf_dma_start(pipe, fifo); in usbhsf_dma_xfer_preparing()
878 struct usbhs_fifo *fifo; in usbhsf_dma_prepare_push() local
905 /* get enable DMA fifo */ in usbhsf_dma_prepare_push()
906 fifo = usbhsf_get_dma_fifo(priv, pkt); in usbhsf_dma_prepare_push()
907 if (!fifo) in usbhsf_dma_prepare_push()
910 ret = usbhsf_fifo_select(pipe, fifo, 0); in usbhsf_dma_prepare_push()
931 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_dma_prepare_push()
957 usbhsf_dma_stop(pipe, pipe->fifo); in usbhsf_dma_push_done()
959 usbhsf_fifo_unselect(pipe, pipe->fifo); in usbhsf_dma_push_done()
990 struct usbhs_fifo *fifo; in usbhsf_dma_prepare_pop_with_usb_dmac() local
1001 fifo = usbhsf_get_dma_fifo(priv, pkt); in usbhsf_dma_prepare_pop_with_usb_dmac()
1002 if (!fifo) in usbhsf_dma_prepare_pop_with_usb_dmac()
1014 ret = usbhsf_fifo_select(pipe, fifo, 0); in usbhsf_dma_prepare_pop_with_usb_dmac()
1037 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_dma_prepare_pop_with_usb_dmac()
1063 struct usbhs_fifo *fifo; in usbhsf_dma_try_pop_with_rx_irq() local
1072 /* get enable DMA fifo */ in usbhsf_dma_try_pop_with_rx_irq()
1073 fifo = usbhsf_get_dma_fifo(priv, pkt); in usbhsf_dma_try_pop_with_rx_irq()
1074 if (!fifo) in usbhsf_dma_try_pop_with_rx_irq()
1080 ret = usbhsf_fifo_select(pipe, fifo, 0); in usbhsf_dma_try_pop_with_rx_irq()
1085 len = usbhsf_fifo_rcv_len(priv, fifo); in usbhsf_dma_try_pop_with_rx_irq()
1093 ret = usbhsf_fifo_barrier(priv, fifo); in usbhsf_dma_try_pop_with_rx_irq()
1117 usbhsf_fifo_unselect(pipe, fifo); in usbhsf_dma_try_pop_with_rx_irq()
1142 usbhsf_dma_stop(pipe, pipe->fifo); in usbhsf_dma_pop_done_with_rx_irq()
1144 usbhsf_fifo_unselect(pipe, pipe->fifo); in usbhsf_dma_pop_done_with_rx_irq()
1184 struct usbhs_fifo *fifo = usbhs_pipe_to_fifo(pipe); in usbhsf_dma_pop_done_with_usb_dmac() local
1185 struct dma_chan *chan = usbhsf_dma_chan_get(fifo, pkt); in usbhsf_dma_pop_done_with_usb_dmac()
1195 rcv_len = usbhsf_fifo_rcv_len(priv, fifo); in usbhsf_dma_pop_done_with_usb_dmac()
1196 usbhsf_fifo_clear(pipe, fifo); in usbhsf_dma_pop_done_with_usb_dmac()
1200 usbhsf_dma_stop(pipe, fifo); in usbhsf_dma_pop_done_with_usb_dmac()
1202 usbhsf_fifo_unselect(pipe, pipe->fifo); in usbhsf_dma_pop_done_with_usb_dmac()
1246 static void usbhsf_dma_quit(struct usbhs_priv *priv, struct usbhs_fifo *fifo) in usbhsf_dma_quit() argument
1248 if (fifo->tx_chan) in usbhsf_dma_quit()
1249 dma_release_channel(fifo->tx_chan); in usbhsf_dma_quit()
1250 if (fifo->rx_chan) in usbhsf_dma_quit()
1251 dma_release_channel(fifo->rx_chan); in usbhsf_dma_quit()
1253 fifo->tx_chan = NULL; in usbhsf_dma_quit()
1254 fifo->rx_chan = NULL; in usbhsf_dma_quit()
1257 static void usbhsf_dma_init_pdev(struct usbhs_fifo *fifo) in usbhsf_dma_init_pdev() argument
1263 fifo->tx_chan = dma_request_channel(mask, usbhsf_dma_filter, in usbhsf_dma_init_pdev()
1264 &fifo->tx_slave); in usbhsf_dma_init_pdev()
1268 fifo->rx_chan = dma_request_channel(mask, usbhsf_dma_filter, in usbhsf_dma_init_pdev()
1269 &fifo->rx_slave); in usbhsf_dma_init_pdev()
1272 static void usbhsf_dma_init_dt(struct device *dev, struct usbhs_fifo *fifo, in usbhsf_dma_init_dt() argument
1284 fifo->tx_chan = dma_request_chan(dev, name); in usbhsf_dma_init_dt()
1285 if (IS_ERR(fifo->tx_chan)) in usbhsf_dma_init_dt()
1286 fifo->tx_chan = NULL; in usbhsf_dma_init_dt()
1288 fifo->rx_chan = dma_request_chan(dev, name); in usbhsf_dma_init_dt()
1289 if (IS_ERR(fifo->rx_chan)) in usbhsf_dma_init_dt()
1290 fifo->rx_chan = NULL; in usbhsf_dma_init_dt()
1294 static void usbhsf_dma_init(struct usbhs_priv *priv, struct usbhs_fifo *fifo, in usbhsf_dma_init() argument
1300 usbhsf_dma_init_dt(dev, fifo, channel); in usbhsf_dma_init()
1302 usbhsf_dma_init_pdev(fifo); in usbhsf_dma_init()
1304 if (fifo->tx_chan || fifo->rx_chan) in usbhsf_dma_init()
1306 fifo->name, in usbhsf_dma_init()
1307 fifo->tx_chan ? "[TX]" : " ", in usbhsf_dma_init()
1308 fifo->rx_chan ? "[RX]" : " "); in usbhsf_dma_init()
1393 struct usbhs_fifo *fifo = usbhsf_get_cfifo(priv); /* CFIFO */ in usbhs_fifo_clear_dcp() local
1395 /* clear DCP FIFO of transmission */ in usbhs_fifo_clear_dcp()
1396 if (usbhsf_fifo_select(pipe, fifo, 1) < 0) in usbhs_fifo_clear_dcp()
1398 usbhsf_fifo_clear(pipe, fifo); in usbhs_fifo_clear_dcp()
1399 usbhsf_fifo_unselect(pipe, fifo); in usbhs_fifo_clear_dcp()
1401 /* clear DCP FIFO of reception */ in usbhs_fifo_clear_dcp()
1402 if (usbhsf_fifo_select(pipe, fifo, 0) < 0) in usbhs_fifo_clear_dcp()
1404 usbhsf_fifo_clear(pipe, fifo); in usbhs_fifo_clear_dcp()
1405 usbhsf_fifo_unselect(pipe, fifo); in usbhs_fifo_clear_dcp()
1409 * fifo init
1438 #define __USBHS_DFIFO_INIT(priv, fifo, channel, fifo_port) \ argument
1440 fifo = usbhsf_get_dnfifo(priv, channel); \
1441 fifo->name = "D"#channel"FIFO"; \
1442 fifo->port = fifo_port; \
1443 fifo->sel = D##channel##FIFOSEL; \
1444 fifo->ctr = D##channel##FIFOCTR; \
1445 fifo->tx_slave.shdma_slave.slave_id = \
1447 fifo->rx_slave.shdma_slave.slave_id = \
1449 usbhsf_dma_init(priv, fifo, channel); \
1452 #define USBHS_DFIFO_INIT(priv, fifo, channel) \ argument
1453 __USBHS_DFIFO_INIT(priv, fifo, channel, D##channel##FIFO)
1454 #define USBHS_DFIFO_INIT_NO_PORT(priv, fifo, channel) \ argument
1455 __USBHS_DFIFO_INIT(priv, fifo, channel, 0)
1459 struct usbhs_fifo *fifo; in usbhs_fifo_probe() local
1462 fifo = usbhsf_get_cfifo(priv); in usbhs_fifo_probe()
1463 fifo->name = "CFIFO"; in usbhs_fifo_probe()
1464 fifo->port = CFIFO; in usbhs_fifo_probe()
1465 fifo->sel = CFIFOSEL; in usbhs_fifo_probe()
1466 fifo->ctr = CFIFOCTR; in usbhs_fifo_probe()
1469 USBHS_DFIFO_INIT(priv, fifo, 0); in usbhs_fifo_probe()
1470 USBHS_DFIFO_INIT(priv, fifo, 1); in usbhs_fifo_probe()
1471 USBHS_DFIFO_INIT_NO_PORT(priv, fifo, 2); in usbhs_fifo_probe()
1472 USBHS_DFIFO_INIT_NO_PORT(priv, fifo, 3); in usbhs_fifo_probe()
1479 struct usbhs_fifo *fifo; in usbhs_fifo_remove() local
1482 usbhs_for_each_dfifo(priv, fifo, i) in usbhs_fifo_remove()
1483 usbhsf_dma_quit(priv, fifo); in usbhs_fifo_remove()