| H A D | mpc52xx_lpbfifo.c | 58 static struct mpc52xx_lpbfifo lpbfifo; variable in typeref:struct:mpc52xx_lpbfifo
76 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x01010000); mpc52xx_lpbfifo_kick()
79 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x00000001); mpc52xx_lpbfifo_kick()
95 reg = lpbfifo.regs + LPBFIFO_REG_FIFO_DATA; mpc52xx_lpbfifo_kick()
102 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x00000301); mpc52xx_lpbfifo_kick()
112 out_be32(lpbfifo.regs + LPBFIFO_REG_FIFO_ALARM, 0x1e4); mpc52xx_lpbfifo_kick()
113 out_8(lpbfifo.regs + LPBFIFO_REG_FIFO_CONTROL, 7); mpc52xx_lpbfifo_kick()
114 lpbfifo.bcom_cur_task = lpbfifo.bcom_tx_task; mpc52xx_lpbfifo_kick()
116 out_be32(lpbfifo.regs + LPBFIFO_REG_FIFO_ALARM, 0x1ff); mpc52xx_lpbfifo_kick()
117 out_8(lpbfifo.regs + LPBFIFO_REG_FIFO_CONTROL, 0); mpc52xx_lpbfifo_kick()
118 lpbfifo.bcom_cur_task = lpbfifo.bcom_rx_task; mpc52xx_lpbfifo_kick()
121 if (lpbfifo.dma_irqs_enabled) { mpc52xx_lpbfifo_kick()
122 disable_irq(bcom_get_task_irq(lpbfifo.bcom_rx_task)); mpc52xx_lpbfifo_kick()
123 lpbfifo.dma_irqs_enabled = 0; mpc52xx_lpbfifo_kick()
126 if (!lpbfifo.dma_irqs_enabled) { mpc52xx_lpbfifo_kick()
127 enable_irq(bcom_get_task_irq(lpbfifo.bcom_rx_task)); mpc52xx_lpbfifo_kick()
128 lpbfifo.dma_irqs_enabled = 1; mpc52xx_lpbfifo_kick()
133 bd = bcom_prepare_next_buffer(lpbfifo.bcom_cur_task); mpc52xx_lpbfifo_kick()
151 bcom_submit_next_buffer(lpbfifo.bcom_cur_task, NULL); mpc52xx_lpbfifo_kick()
159 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, bit_fields); mpc52xx_lpbfifo_kick()
163 out_be32(lpbfifo.regs + LPBFIFO_REG_START_ADDRESS, mpc52xx_lpbfifo_kick()
165 out_be32(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, transfer_size); mpc52xx_lpbfifo_kick()
170 out_be32(lpbfifo.regs + LPBFIFO_REG_CONTROL, bit_fields); mpc52xx_lpbfifo_kick()
173 if (!lpbfifo.req->defer_xfer_start) mpc52xx_lpbfifo_kick()
174 out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01); mpc52xx_lpbfifo_kick()
176 bcom_enable(lpbfifo.bcom_cur_task); mpc52xx_lpbfifo_kick()
223 u32 status = in_8(lpbfifo.regs + LPBFIFO_REG_BYTES_DONE_STATUS); mpc52xx_lpbfifo_irq()
232 spin_lock_irqsave(&lpbfifo.lock, flags); mpc52xx_lpbfifo_irq()
235 req = lpbfifo.req; mpc52xx_lpbfifo_irq()
237 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_irq()
247 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_irq()
258 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x01010000); mpc52xx_lpbfifo_irq()
264 count = in_be32(lpbfifo.regs + LPBFIFO_REG_BYTES_DONE_STATUS); mpc52xx_lpbfifo_irq()
269 reg = lpbfifo.regs + LPBFIFO_REG_FIFO_DATA; mpc52xx_lpbfifo_irq()
286 out_8(lpbfifo.regs + LPBFIFO_REG_BYTES_DONE_STATUS, 0x01); mpc52xx_lpbfifo_irq()
299 bcom_retrieve_buffer(lpbfifo.bcom_cur_task, &status, NULL); mpc52xx_lpbfifo_irq()
306 lpbfifo.req = NULL; mpc52xx_lpbfifo_irq()
312 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_irq()
333 spin_lock_irqsave(&lpbfifo.lock, flags); mpc52xx_lpbfifo_bcom_irq()
336 req = lpbfifo.req; mpc52xx_lpbfifo_bcom_irq()
338 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_bcom_irq()
345 if (!bcom_buffer_done(lpbfifo.bcom_cur_task)) { mpc52xx_lpbfifo_bcom_irq()
346 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_bcom_irq()
355 bcom_retrieve_buffer(lpbfifo.bcom_cur_task, &status, NULL); mpc52xx_lpbfifo_bcom_irq()
362 lpbfifo.req = NULL; mpc52xx_lpbfifo_bcom_irq()
366 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_bcom_irq()
379 struct mpc52xx_lpbfifo_request *req = lpbfifo.req; mpc52xx_lpbfifo_poll()
401 if (!lpbfifo.regs) mpc52xx_lpbfifo_submit()
404 spin_lock_irqsave(&lpbfifo.lock, flags); mpc52xx_lpbfifo_submit()
407 if (lpbfifo.req) { mpc52xx_lpbfifo_submit()
408 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_submit()
413 lpbfifo.req = req; mpc52xx_lpbfifo_submit()
420 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_submit()
429 if (!lpbfifo.regs) mpc52xx_lpbfifo_start_xfer()
432 spin_lock_irqsave(&lpbfifo.lock, flags); mpc52xx_lpbfifo_start_xfer()
438 if (lpbfifo.req && !lpbfifo.req->defer_xfer_start) { mpc52xx_lpbfifo_start_xfer()
439 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_start_xfer()
447 if (lpbfifo.req && lpbfifo.req == req && mpc52xx_lpbfifo_start_xfer()
448 lpbfifo.req->defer_xfer_start) { mpc52xx_lpbfifo_start_xfer()
449 out_8(lpbfifo.regs + LPBFIFO_REG_PACKET_SIZE, 0x01); mpc52xx_lpbfifo_start_xfer()
452 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_start_xfer()
461 spin_lock_irqsave(&lpbfifo.lock, flags); mpc52xx_lpbfifo_abort()
462 if (lpbfifo.req == req) { mpc52xx_lpbfifo_abort()
464 bcom_gen_bd_rx_reset(lpbfifo.bcom_rx_task); mpc52xx_lpbfifo_abort()
465 bcom_gen_bd_tx_reset(lpbfifo.bcom_tx_task); mpc52xx_lpbfifo_abort()
466 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x01010000); mpc52xx_lpbfifo_abort()
467 lpbfifo.req = NULL; mpc52xx_lpbfifo_abort()
469 spin_unlock_irqrestore(&lpbfifo.lock, flags); mpc52xx_lpbfifo_abort()
478 if (lpbfifo.dev != NULL) mpc52xx_lpbfifo_probe()
481 lpbfifo.irq = irq_of_parse_and_map(op->dev.of_node, 0); mpc52xx_lpbfifo_probe()
482 if (!lpbfifo.irq) mpc52xx_lpbfifo_probe()
487 lpbfifo.regs_phys = res.start; mpc52xx_lpbfifo_probe()
488 lpbfifo.regs = of_iomap(op->dev.of_node, 0); mpc52xx_lpbfifo_probe()
489 if (!lpbfifo.regs) mpc52xx_lpbfifo_probe()
492 spin_lock_init(&lpbfifo.lock); mpc52xx_lpbfifo_probe()
495 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x01010000); mpc52xx_lpbfifo_probe()
498 rc = request_irq(lpbfifo.irq, mpc52xx_lpbfifo_irq, 0, mpc52xx_lpbfifo_probe()
499 "mpc52xx-lpbfifo", &lpbfifo); mpc52xx_lpbfifo_probe()
504 lpbfifo.bcom_rx_task = mpc52xx_lpbfifo_probe()
508 if (!lpbfifo.bcom_rx_task) mpc52xx_lpbfifo_probe()
511 rc = request_irq(bcom_get_task_irq(lpbfifo.bcom_rx_task), mpc52xx_lpbfifo_probe()
513 "mpc52xx-lpbfifo-rx", &lpbfifo); mpc52xx_lpbfifo_probe()
517 lpbfifo.dma_irqs_enabled = 1; mpc52xx_lpbfifo_probe()
520 lpbfifo.bcom_tx_task = mpc52xx_lpbfifo_probe()
523 if (!lpbfifo.bcom_tx_task) mpc52xx_lpbfifo_probe()
526 lpbfifo.dev = &op->dev; mpc52xx_lpbfifo_probe()
530 free_irq(bcom_get_task_irq(lpbfifo.bcom_rx_task), &lpbfifo); mpc52xx_lpbfifo_probe() local
532 bcom_gen_bd_rx_release(lpbfifo.bcom_rx_task); mpc52xx_lpbfifo_probe()
535 iounmap(lpbfifo.regs); mpc52xx_lpbfifo_probe()
536 lpbfifo.regs = NULL; mpc52xx_lpbfifo_probe()
545 if (lpbfifo.dev != &op->dev) mpc52xx_lpbfifo_remove()
549 out_be32(lpbfifo.regs + LPBFIFO_REG_ENABLE, 0x01010000); mpc52xx_lpbfifo_remove()
552 free_irq(bcom_get_task_irq(lpbfifo.bcom_tx_task), &lpbfifo); mpc52xx_lpbfifo_remove() local
553 bcom_gen_bd_tx_release(lpbfifo.bcom_tx_task); mpc52xx_lpbfifo_remove()
556 free_irq(bcom_get_task_irq(lpbfifo.bcom_rx_task), &lpbfifo); mpc52xx_lpbfifo_remove() local
557 bcom_gen_bd_rx_release(lpbfifo.bcom_rx_task); mpc52xx_lpbfifo_remove()
559 free_irq(lpbfifo.irq, &lpbfifo); mpc52xx_lpbfifo_remove()
560 iounmap(lpbfifo.regs); mpc52xx_lpbfifo_remove()
561 lpbfifo.regs = NULL; mpc52xx_lpbfifo_remove()
562 lpbfifo.dev = NULL; mpc52xx_lpbfifo_remove()
568 { .compatible = "fsl,mpc5200-lpbfifo", },
574 .name = "mpc52xx-lpbfifo",
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