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