Lines Matching defs:rmi_spi
53 static int rmi_spi_manage_pools(struct rmi_spi_xport *rmi_spi, int len)
55 struct spi_device *spi = rmi_spi->spi;
56 int buf_size = rmi_spi->xfer_buf_size
57 ? rmi_spi->xfer_buf_size : RMI_SPI_DEFAULT_XFER_BUF_SIZE;
68 tmp = rmi_spi->rx_buf;
74 rmi_spi->rx_buf = buf;
75 rmi_spi->tx_buf = &rmi_spi->rx_buf[buf_size];
76 rmi_spi->xfer_buf_size = buf_size;
81 if (rmi_spi->xport.pdata.spi_data.read_delay_us)
82 rmi_spi->rx_xfer_count = buf_size;
84 rmi_spi->rx_xfer_count = 1;
86 if (rmi_spi->xport.pdata.spi_data.write_delay_us)
87 rmi_spi->tx_xfer_count = buf_size;
89 rmi_spi->tx_xfer_count = 1;
95 tmp = rmi_spi->rx_xfers;
97 rmi_spi->rx_xfer_count + rmi_spi->tx_xfer_count,
103 rmi_spi->rx_xfers = xfer_buf;
104 rmi_spi->tx_xfers = &xfer_buf[rmi_spi->rx_xfer_count];
112 static int rmi_spi_xfer(struct rmi_spi_xport *rmi_spi,
116 struct spi_device *spi = rmi_spi->spi;
118 &rmi_spi->xport.pdata.spi_data;
148 if (rmi_spi->xfer_buf_size < len) {
149 ret = rmi_spi_manage_pools(rmi_spi, len);
163 rmi_spi->tx_buf[0] = (addr >> 8);
164 rmi_spi->tx_buf[1] = addr & 0xFF;
167 rmi_spi->tx_buf[0] = (addr >> 8) | 0x80;
168 rmi_spi->tx_buf[1] = addr & 0xFF;
175 rmi_spi->tx_buf[0] = 0x40;
176 rmi_spi->tx_buf[1] = (addr >> 8) & 0xFF;
177 rmi_spi->tx_buf[2] = addr & 0xFF;
178 rmi_spi->tx_buf[3] = tx_len;
183 memcpy(&rmi_spi->tx_buf[cmd_len], tx_buf, tx_len);
185 if (rmi_spi->tx_xfer_count > 1) {
187 xfer = &rmi_spi->tx_xfers[i];
189 xfer->tx_buf = &rmi_spi->tx_buf[i];
196 xfer = rmi_spi->tx_xfers;
198 xfer->tx_buf = rmi_spi->tx_buf;
205 total_tx_len, total_tx_len, rmi_spi->tx_buf);
208 if (rmi_spi->rx_xfer_count > 1) {
210 xfer = &rmi_spi->rx_xfers[i];
212 xfer->rx_buf = &rmi_spi->rx_buf[i];
219 xfer = rmi_spi->rx_xfers;
221 xfer->rx_buf = rmi_spi->rx_buf;
234 memcpy(rx_buf, rmi_spi->rx_buf, rx_len);
256 static int rmi_set_page(struct rmi_spi_xport *rmi_spi, u8 page)
264 ret = rmi_spi_xfer(rmi_spi, &cmd, &page, 1, NULL, 0);
267 rmi_spi->page = page;
275 struct rmi_spi_xport *rmi_spi =
280 mutex_lock(&rmi_spi->page_mutex);
282 if (RMI_SPI_PAGE(addr) != rmi_spi->page) {
283 ret = rmi_set_page(rmi_spi, RMI_SPI_PAGE(addr));
291 ret = rmi_spi_xfer(rmi_spi, &cmd, buf, len, NULL, 0);
294 mutex_unlock(&rmi_spi->page_mutex);
301 struct rmi_spi_xport *rmi_spi =
306 mutex_lock(&rmi_spi->page_mutex);
308 if (RMI_SPI_PAGE(addr) != rmi_spi->page) {
309 ret = rmi_set_page(rmi_spi, RMI_SPI_PAGE(addr));
317 ret = rmi_spi_xfer(rmi_spi, &cmd, NULL, 0, buf, len);
320 mutex_unlock(&rmi_spi->page_mutex);
366 struct rmi_spi_xport *rmi_spi = data;
368 rmi_unregister_transport_device(&rmi_spi->xport);
373 struct rmi_spi_xport *rmi_spi;
381 rmi_spi = devm_kzalloc(&spi->dev, sizeof(struct rmi_spi_xport),
383 if (!rmi_spi)
386 pdata = &rmi_spi->xport.pdata;
410 rmi_spi->spi = spi;
411 mutex_init(&rmi_spi->page_mutex);
413 rmi_spi->xport.dev = &spi->dev;
414 rmi_spi->xport.proto_name = "spi";
415 rmi_spi->xport.ops = &rmi_spi_ops;
417 spi_set_drvdata(spi, rmi_spi);
419 error = rmi_spi_manage_pools(rmi_spi, RMI_SPI_DEFAULT_XFER_BUF_SIZE);
427 error = rmi_set_page(rmi_spi, 0);
435 error = rmi_register_transport_device(&rmi_spi->xport);
443 rmi_spi);
453 struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
456 ret = rmi_driver_suspend(rmi_spi->xport.rmi_dev, true);
466 struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
469 ret = rmi_driver_resume(rmi_spi->xport.rmi_dev, true);
479 struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
482 ret = rmi_driver_suspend(rmi_spi->xport.rmi_dev, false);
492 struct rmi_spi_xport *rmi_spi = spi_get_drvdata(spi);
495 ret = rmi_driver_resume(rmi_spi->xport.rmi_dev, false);