4  * SPDX-License-Identifier: Apache-2.0
8  * @brief File containing SPI device interface specific definitions for the
9  * Zephyr OS layer of the Wi-Fi driver.
14 #include <zephyr/drivers/spi.h>
29 static int spim_xfer_tx(unsigned int addr, void *data, unsigned int len)  in spim_xfer_tx()  argument
34 		(((addr >> 16) & 0xFF) | 0x80),  in spim_xfer_tx()
35 		(addr >> 8) & 0xFF,  in spim_xfer_tx()
36 		(addr & 0xFF)  in spim_xfer_tx()
52 static int spim_xfer_rx(unsigned int addr, void *data, unsigned int len, unsigned int discard_bytes)  in spim_xfer_rx()  argument
56 		(addr >> 16) & 0xFF,  in spim_xfer_rx()
57 		(addr >> 8) & 0xFF,  in spim_xfer_rx()
58 		addr & 0xFF,  in spim_xfer_rx()
79 		return -EINVAL;  in spim_xfer_rx()
110 	LOG_DBG("err: %d -> %x %x %x %x %x %x", err, sr[0], sr[1], sr[2], sr[3], sr[4], sr[5]);  in spim_read_reg()
130 		LOG_ERR("SPI error: %d", err);  in spim_write_reg()
176 		return -1;  in _spim_wait_while_rpu_awake()
203 		return -1;  in spim_wait_while_rpu_wake_write()
225 		LOG_ERR("SPI error: %d", err);  in spim_cmd_sleep_rpu()
234 		LOG_ERR("Device %s is not ready", spi_spec.bus->name);  in spim_init()
235 		return -ENODEV;  in spim_init()
240 	k_sem_init(&spim_config->lock, 1, 1);  in spim_init()
243 		spim_config->qspi_slave_latency = 1;  in spim_init()
246 	LOG_INF("SPIM %s: freq = %d MHz", spi_spec.bus->name,  in spim_init()
248 	LOG_INF("SPIM %s: latency = %d", spi_spec.bus->name, spim_config->qspi_slave_latency);  in spim_init()
260 static void spim_addr_check(unsigned int addr, const void *data, unsigned int len)  in spim_addr_check()  argument
262 	if ((addr % 4 != 0) || (((unsigned int)data) % 4 != 0) || (len % 4 != 0)) {  in spim_addr_check()
263 		LOG_ERR("%s : Unaligned address %x %x %d %x %x", __func__, addr,  in spim_addr_check()
264 		       (unsigned int)data, (addr % 4 != 0), (((unsigned int)data) % 4 != 0),  in spim_addr_check()
269 int spim_write(unsigned int addr, const void *data, int len)  in spim_write()  argument
273 	spim_addr_check(addr, data, len);  in spim_write()
275 	addr |= spim_config->addrmask;  in spim_write()
277 	k_sem_take(&spim_config->lock, K_FOREVER);  in spim_write()
279 	status = spim_xfer_tx(addr, (void *)data, len);  in spim_write()
281 	k_sem_give(&spim_config->lock);  in spim_write()
286 int spim_read(unsigned int addr, void *data, int len)  in spim_read()  argument
290 	spim_addr_check(addr, data, len);  in spim_read()
292 	addr |= spim_config->addrmask;  in spim_read()
294 	k_sem_take(&spim_config->lock, K_FOREVER);  in spim_read()
296 	status = spim_xfer_rx(addr, data, len, 0);  in spim_read()
298 	k_sem_give(&spim_config->lock);  in spim_read()
303 static int spim_hl_readw(unsigned int addr, void *data)  in spim_hl_readw()  argument
305 	int status = -1;  in spim_hl_readw()
307 	k_sem_take(&spim_config->lock, K_FOREVER);  in spim_hl_readw()
309 	status = spim_xfer_rx(addr, data, 4, 4 * spim_config->qspi_slave_latency);  in spim_hl_readw()
311 	k_sem_give(&spim_config->lock);  in spim_hl_readw()
316 int spim_hl_read(unsigned int addr, void *data, int len)  in spim_hl_read()  argument
320 	spim_addr_check(addr, data, len);  in spim_hl_read()
323 		spim_hl_readw(addr + (4 * count), (char *)data + (4 * count));  in spim_hl_read()
330 /* ------------------------------added for wifi utils -------------------------------- */