45 static int spidev_slv_write(struct spidev_rkslv_data *spidev, const void *txbuf, size_t n)  in spidev_slv_write()  argument
48 	struct spi_device *spi = spidev->spi;  in spidev_slv_write()
63 static int spidev_slv_read(struct spidev_rkslv_data *spidev, void *rxbuf, size_t n)  in spidev_slv_read()  argument
66 	struct spi_device *spi = spidev->spi;  in spidev_slv_read()
81 static int spidev_slv_write_and_read(struct spidev_rkslv_data *spidev, const void *tx_buf,  in spidev_slv_write_and_read()  argument
84 	struct spi_device *spi = spidev->spi;  in spidev_slv_write_and_read()
100 	struct spidev_rkslv_data *spidev;  in spidev_rkslv_misc_write()  local
110 	spidev = filp->private_data;  in spidev_rkslv_misc_write()
112 	if (!spidev)  in spidev_rkslv_misc_write()
115 	spi = spidev->spi;  in spidev_rkslv_misc_write()
145 			spidev->verbose = true;  in spidev_rkslv_misc_write()
147 			spidev->verbose = false;  in spidev_rkslv_misc_write()
173 			       spidev->appmem + addr,  in spidev_rkslv_misc_write()
186 	struct spidev_rkslv_data *spidev;  in spidev_rkslv_misc_open()  local
188 	spidev = container_of(miscdev, struct spidev_rkslv_data, misc_dev);  in spidev_rkslv_misc_open()
189 	filp->private_data = spidev;  in spidev_rkslv_misc_open()
199 static int spidev_rkslv_xfer(struct spidev_rkslv_data *spidev)  in spidev_rkslv_xfer()  argument
201 	char *ctrlbuf = spidev->ctrlbuf, *appmem = spidev->appmem, *tempbuf = spidev->tempbuf;  in spidev_rkslv_xfer()
203 	struct spi_device *spi = spidev->spi;  in spidev_rkslv_xfer()
207 	memset(spidev->ctrlbuf, 0, SPI_OBJ_CTRL_MSG_SIZE);  in spidev_rkslv_xfer()
208 	ret = spidev_slv_read(spidev, spidev->ctrlbuf, SPI_OBJ_CTRL_MSG_SIZE);  in spidev_rkslv_xfer()
215 	if (spidev->verbose)  in spidev_rkslv_xfer()
224 		ret = spidev_slv_write(spidev, appmem + ctrl->addr, len);  in spidev_rkslv_xfer()
233 		ret = spidev_slv_read(spidev, appmem + ctrl->addr, len);  in spidev_rkslv_xfer()
239 		if (spidev->verbose) {  in spidev_rkslv_xfer()
251 		ret = spidev_slv_write_and_read(spidev, appmem + ctrl->addr, tempbuf, len);  in spidev_rkslv_xfer()
257 		if (spidev->verbose) {  in spidev_rkslv_xfer()
276 		if (spidev->verbose)  in spidev_rkslv_xfer()
281 	if (spidev->verbose)  in spidev_rkslv_xfer()
289 	struct spidev_rkslv_data *spidev = (struct spidev_rkslv_data *)p;  in spidev_rkslv_ctrl_receiver_thread()  local
291 	while (spidev->tsk_run)  in spidev_rkslv_ctrl_receiver_thread()
292 		spidev_rkslv_xfer(spidev);  in spidev_rkslv_ctrl_receiver_thread()
299 	struct spidev_rkslv_data *spidev = NULL;  in spidev_rkslv_probe()  local
305 	spidev = devm_kzalloc(&spi->dev, sizeof(struct spidev_rkslv_data), GFP_KERNEL);  in spidev_rkslv_probe()
306 	if (!spidev)  in spidev_rkslv_probe()
309 	spidev->ctrlbuf = devm_kzalloc(&spi->dev, SPI_OBJ_MAX_XFER_SIZE, GFP_KERNEL);  in spidev_rkslv_probe()
310 	if (!spidev->ctrlbuf)  in spidev_rkslv_probe()
313 	spidev->appmem = devm_kzalloc(&spi->dev, SPI_OBJ_APP_RAM_SIZE, GFP_KERNEL | GFP_DMA);  in spidev_rkslv_probe()
314 	if (!spidev->appmem)  in spidev_rkslv_probe()
317 	spidev->tempbuf = devm_kzalloc(&spi->dev, SPI_OBJ_MAX_XFER_SIZE, GFP_KERNEL);  in spidev_rkslv_probe()
318 	if (!spidev->tempbuf)  in spidev_rkslv_probe()
321 	spidev->spi = spi;  in spidev_rkslv_probe()
322 	spidev->dev = &spi->dev;  in spidev_rkslv_probe()
323 	dev_set_drvdata(&spi->dev, spidev);  in spidev_rkslv_probe()
327 	spidev->misc_dev.minor = MISC_DYNAMIC_MINOR;  in spidev_rkslv_probe()
328 	spidev->misc_dev.name = "spidev_rkslv_misc";  in spidev_rkslv_probe()
329 	spidev->misc_dev.fops = &spidev_rkslv_misc_fops;  in spidev_rkslv_probe()
330 	spidev->misc_dev.parent = &spi->dev;  in spidev_rkslv_probe()
331 	ret = misc_register(&spidev->misc_dev);  in spidev_rkslv_probe()
337 	spidev->tsk_run = true;  in spidev_rkslv_probe()
338 	spidev->tsk = kthread_run(spidev_rkslv_ctrl_receiver_thread, spidev, "spidev-rkslv");  in spidev_rkslv_probe()
339 	if (IS_ERR(spidev->tsk)) {  in spidev_rkslv_probe()
341 		return PTR_ERR(spidev->tsk);  in spidev_rkslv_probe()
349 	struct spidev_rkslv_data *spidev = dev_get_drvdata(&spi->dev);  in spidev_rkslv_remove()  local
351 	spidev->tsk_run = false;  in spidev_rkslv_remove()
353 	kthread_stop(spidev->tsk);  in spidev_rkslv_remove()
354 	misc_deregister(&spidev->misc_dev);  in spidev_rkslv_remove()