99 	struct vsc_tp *tp = data;  in vsc_tp_isr()  local
101 	atomic_inc(&tp->assert_cnt);  in vsc_tp_isr()
103 	wake_up(&tp->xfer_wait);  in vsc_tp_isr()
110 	struct vsc_tp *tp = data;  in vsc_tp_thread_isr()  local
112 	if (tp->event_notify)  in vsc_tp_thread_isr()
113 		tp->event_notify(tp->event_notify_context);  in vsc_tp_thread_isr()
119 static int vsc_tp_wakeup_request(struct vsc_tp *tp)  in vsc_tp_wakeup_request()  argument
123 	gpiod_set_value_cansleep(tp->wakeupfw, 0);  in vsc_tp_wakeup_request()
125 	ret = wait_event_timeout(tp->xfer_wait,  in vsc_tp_wakeup_request()
126 				 atomic_read(&tp->assert_cnt),  in vsc_tp_wakeup_request()
134 				 tp->wakeuphost);  in vsc_tp_wakeup_request()
137 static void vsc_tp_wakeup_release(struct vsc_tp *tp)  in vsc_tp_wakeup_release()  argument
139 	atomic_dec_if_positive(&tp->assert_cnt);  in vsc_tp_wakeup_release()
141 	gpiod_set_value_cansleep(tp->wakeupfw, 1);  in vsc_tp_wakeup_release()
144 static int vsc_tp_dev_xfer(struct vsc_tp *tp, void *obuf, void *ibuf, size_t len)  in vsc_tp_dev_xfer()  argument
155 	return spi_sync_locked(tp->spi, &msg);  in vsc_tp_dev_xfer()
158 static int vsc_tp_xfer_helper(struct vsc_tp *tp, struct vsc_tp_packet *pkt,  in vsc_tp_xfer_helper()  argument
163 	u8 *src, *crc_src, *rx_buf = tp->rx_buf;  in vsc_tp_xfer_helper()
171 		ret = vsc_tp_dev_xfer(tp, pkt, rx_buf, next_xfer_len);  in vsc_tp_xfer_helper()
246 	if (~recv_crc != crc || le32_to_cpu(ack.seq) != tp->seq) {  in vsc_tp_xfer_helper()
247 		dev_err(&tp->spi->dev, "recv crc or seq error\n");  in vsc_tp_xfer_helper()
253 		dev_err(&tp->spi->dev, "recv cmd ack error\n");  in vsc_tp_xfer_helper()
271 int vsc_tp_xfer(struct vsc_tp *tp, u8 cmd, const void *obuf, size_t olen,  in vsc_tp_xfer()  argument
274 	struct vsc_tp_packet *pkt = tp->tx_buf;  in vsc_tp_xfer()
281 	guard(mutex)(&tp->mutex);  in vsc_tp_xfer()
286 	pkt->seq = cpu_to_le32(++tp->seq);  in vsc_tp_xfer()
292 	ret = vsc_tp_wakeup_request(tp);  in vsc_tp_xfer()
294 		dev_err(&tp->spi->dev, "wakeup firmware failed ret: %d\n", ret);  in vsc_tp_xfer()
296 		ret = vsc_tp_xfer_helper(tp, pkt, ibuf, ilen);  in vsc_tp_xfer()
298 	vsc_tp_wakeup_release(tp);  in vsc_tp_xfer()
312 int vsc_tp_rom_xfer(struct vsc_tp *tp, const void *obuf, void *ibuf, size_t len)  in vsc_tp_rom_xfer()  argument
320 	guard(mutex)(&tp->mutex);  in vsc_tp_rom_xfer()
323 	cpu_to_be32_array(tp->tx_buf, obuf, words);  in vsc_tp_rom_xfer()
328 				tp->wakeuphost);  in vsc_tp_rom_xfer()
330 		dev_err(&tp->spi->dev, "wait rom failed ret: %d\n", ret);  in vsc_tp_rom_xfer()
334 	ret = vsc_tp_dev_xfer(tp, tp->tx_buf, ibuf ? tp->rx_buf : NULL, len);  in vsc_tp_rom_xfer()
339 		be32_to_cpu_array(ibuf, tp->rx_buf, words);  in vsc_tp_rom_xfer()
348 void vsc_tp_reset(struct vsc_tp *tp)  in vsc_tp_reset()  argument
350 	disable_irq(tp->spi->irq);  in vsc_tp_reset()
353 	gpiod_set_value_cansleep(tp->resetfw, 0);  in vsc_tp_reset()
355 	gpiod_set_value_cansleep(tp->resetfw, 1);  in vsc_tp_reset()
364 	gpiod_set_value_cansleep(tp->wakeupfw, 1);  in vsc_tp_reset()
366 	atomic_set(&tp->assert_cnt, 0);  in vsc_tp_reset()
368 	enable_irq(tp->spi->irq);  in vsc_tp_reset()
377 bool vsc_tp_need_read(struct vsc_tp *tp)  in vsc_tp_need_read()  argument
379 	if (!atomic_read(&tp->assert_cnt))  in vsc_tp_need_read()
381 	if (!gpiod_get_value_cansleep(tp->wakeuphost))  in vsc_tp_need_read()
383 	if (!gpiod_get_value_cansleep(tp->wakeupfw))  in vsc_tp_need_read()
397 int vsc_tp_register_event_cb(struct vsc_tp *tp, vsc_tp_event_cb_t event_cb,  in vsc_tp_register_event_cb()  argument
400 	tp->event_notify = event_cb;  in vsc_tp_register_event_cb()
401 	tp->event_notify_context = context;  in vsc_tp_register_event_cb()
411 int vsc_tp_request_irq(struct vsc_tp *tp)  in vsc_tp_request_irq()  argument
413 	struct spi_device *spi = tp->spi;  in vsc_tp_request_irq()
420 				   dev_name(dev), tp);  in vsc_tp_request_irq()
432 void vsc_tp_free_irq(struct vsc_tp *tp)  in vsc_tp_free_irq()  argument
434 	free_irq(tp->spi->irq, tp);  in vsc_tp_free_irq()
442 void vsc_tp_intr_synchronize(struct vsc_tp *tp)  in vsc_tp_intr_synchronize()  argument
444 	synchronize_irq(tp->spi->irq);  in vsc_tp_intr_synchronize()
452 void vsc_tp_intr_enable(struct vsc_tp *tp)  in vsc_tp_intr_enable()  argument
454 	enable_irq(tp->spi->irq);  in vsc_tp_intr_enable()
462 void vsc_tp_intr_disable(struct vsc_tp *tp)  in vsc_tp_intr_disable()  argument
464 	disable_irq(tp->spi->irq);  in vsc_tp_intr_disable()
479 	struct vsc_tp *tp;  in vsc_tp_probe()  local
482 		.data = &tp,  in vsc_tp_probe()
483 		.size_data = sizeof(tp),  in vsc_tp_probe()
491 	tp = devm_kzalloc(dev, sizeof(*tp), GFP_KERNEL);  in vsc_tp_probe()
492 	if (!tp)  in vsc_tp_probe()
495 	tp->tx_buf = devm_kzalloc(dev, VSC_TP_MAX_XFER_SIZE, GFP_KERNEL);  in vsc_tp_probe()
496 	if (!tp->tx_buf)  in vsc_tp_probe()
499 	tp->rx_buf = devm_kzalloc(dev, VSC_TP_MAX_XFER_SIZE, GFP_KERNEL);  in vsc_tp_probe()
500 	if (!tp->rx_buf)  in vsc_tp_probe()
507 	tp->wakeuphost = devm_gpiod_get(dev, "wakeuphost", GPIOD_IN);  in vsc_tp_probe()
508 	if (IS_ERR(tp->wakeuphost))  in vsc_tp_probe()
509 		return PTR_ERR(tp->wakeuphost);  in vsc_tp_probe()
511 	tp->resetfw = devm_gpiod_get(dev, "resetfw", GPIOD_OUT_HIGH);  in vsc_tp_probe()
512 	if (IS_ERR(tp->resetfw))  in vsc_tp_probe()
513 		return PTR_ERR(tp->resetfw);  in vsc_tp_probe()
515 	tp->wakeupfw = devm_gpiod_get(dev, "wakeupfw", GPIOD_OUT_HIGH);  in vsc_tp_probe()
516 	if (IS_ERR(tp->wakeupfw))  in vsc_tp_probe()
517 		return PTR_ERR(tp->wakeupfw);  in vsc_tp_probe()
519 	atomic_set(&tp->assert_cnt, 0);  in vsc_tp_probe()
520 	init_waitqueue_head(&tp->xfer_wait);  in vsc_tp_probe()
521 	tp->spi = spi;  in vsc_tp_probe()
526 				   dev_name(dev), tp);  in vsc_tp_probe()
530 	mutex_init(&tp->mutex);  in vsc_tp_probe()
547 	tp->pdev = pdev;  in vsc_tp_probe()
548 	spi_set_drvdata(spi, tp);  in vsc_tp_probe()
553 	mutex_destroy(&tp->mutex);  in vsc_tp_probe()
555 	free_irq(spi->irq, tp);  in vsc_tp_probe()
562 	struct vsc_tp *tp = spi_get_drvdata(spi);  in vsc_tp_remove()  local
564 	platform_device_unregister(tp->pdev);  in vsc_tp_remove()
566 	mutex_destroy(&tp->mutex);  in vsc_tp_remove()
568 	free_irq(spi->irq, tp);  in vsc_tp_remove()
573 	struct vsc_tp *tp = spi_get_drvdata(spi);  in vsc_tp_shutdown()  local
575 	platform_device_unregister(tp->pdev);  in vsc_tp_shutdown()
577 	mutex_destroy(&tp->mutex);  in vsc_tp_shutdown()
579 	vsc_tp_reset(tp);  in vsc_tp_shutdown()
581 	free_irq(spi->irq, tp);  in vsc_tp_shutdown()