1 // SPDX-License-Identifier: GPL-2.0-only
3  * Firmware I/O code for mac80211 ST-Ericsson CW1200 drivers
5  * Copyright (c) 2010, ST-Ericsson
9  * ST-Ericsson UMAC CW1200 driver which is
10  * Copyright (c) 2010, ST-Ericsson
26 	int hw_type = -1;  in cw1200_get_hw_type()
93 	switch (priv->hw_revision) {  in cw1200_load_firmware_cw1200()
96 		if (!priv->sdd_path)  in cw1200_load_firmware_cw1200()
97 			priv->sdd_path = SDD_FILE_10;  in cw1200_load_firmware_cw1200()
101 		if (!priv->sdd_path)  in cw1200_load_firmware_cw1200()
102 			priv->sdd_path = SDD_FILE_11;  in cw1200_load_firmware_cw1200()
106 		if (!priv->sdd_path)  in cw1200_load_firmware_cw1200()
107 			priv->sdd_path = SDD_FILE_20;  in cw1200_load_firmware_cw1200()
111 		if (!priv->sdd_path)  in cw1200_load_firmware_cw1200()
112 			priv->sdd_path = SDD_FILE_22;  in cw1200_load_firmware_cw1200()
116 		if (!priv->sdd_path)  in cw1200_load_firmware_cw1200()
117 			priv->sdd_path = SDD_FILE_CW1X60;  in cw1200_load_firmware_cw1200()
120 		pr_err("Invalid silicon revision %d.\n", priv->hw_revision);  in cw1200_load_firmware_cw1200()
121 		return -EINVAL;  in cw1200_load_firmware_cw1200()
145 	ret = request_firmware(&firmware, fw_path, priv->pdev);  in cw1200_load_firmware_cw1200()
154 		ret = -ENOMEM;  in cw1200_load_firmware_cw1200()
168 		ret = -ETIMEDOUT;  in cw1200_load_firmware_cw1200()
173 	num_blocks = (firmware->size - 1) / DOWNLOAD_BLOCK_SIZE + 1;  in cw1200_load_firmware_cw1200()
176 	val32 = firmware->size; /* Explicit cast from size_t to u32 */  in cw1200_load_firmware_cw1200()
188 			ret = -EIO;  in cw1200_load_firmware_cw1200()
192 		/* loop until put - get <= 24K */  in cw1200_load_firmware_cw1200()
195 			if ((put - get) <=  in cw1200_load_firmware_cw1200()
196 			    (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE))  in cw1200_load_firmware_cw1200()
201 		if ((put - get) > (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE)) {  in cw1200_load_firmware_cw1200()
203 			ret = -ETIMEDOUT;  in cw1200_load_firmware_cw1200()
208 		tx_size = block_size = min_t(size_t, firmware->size - put,  in cw1200_load_firmware_cw1200()
211 		memcpy(buf, &firmware->data[put], block_size);  in cw1200_load_firmware_cw1200()
214 			       DOWNLOAD_BLOCK_SIZE - block_size);  in cw1200_load_firmware_cw1200()
221 				   (put & (DOWNLOAD_FIFO_SIZE - 1))),  in cw1200_load_firmware_cw1200()
225 			       put & (DOWNLOAD_FIFO_SIZE - 1));  in cw1200_load_firmware_cw1200()
243 		ret = -ETIMEDOUT;  in cw1200_load_firmware_cw1200()
267 	switch (priv->hw_type) {  in config_reg_read()
289 	switch (priv->hw_type) {  in config_reg_write()
308 	int major_revision = -1;  in cw1200_load_firmware()
319 		ret = -EIO;  in cw1200_load_firmware()
328 	priv->hw_type = ret;  in cw1200_load_firmware()
332 				  cw1200_dpll_from_clk(priv->hw_refclk));  in cw1200_load_firmware()
347 	if (val32 != cw1200_dpll_from_clk(priv->hw_refclk)) {  in cw1200_load_firmware()
349 		       cw1200_dpll_from_clk(priv->hw_refclk), val32);  in cw1200_load_firmware()
350 		ret = -EIO;  in cw1200_load_firmware()
385 		ret = -ETIMEDOUT;  in cw1200_load_firmware()
394 			pr_err("HW detection: can't read CUT ID.\n");  in cw1200_load_firmware()
400 			pr_info("CW1x00 Cut 1.1 silicon detected.\n");  in cw1200_load_firmware()
401 			priv->hw_revision = CW1200_HW_REV_CUT11;  in cw1200_load_firmware()
404 			pr_info("CW1x00 Cut 1.0 silicon detected.\n");  in cw1200_load_firmware()
405 			priv->hw_revision = CW1200_HW_REV_CUT10;  in cw1200_load_firmware()
409 		/* According to ST-E, CUT<2.0 has busted BA TID0-3.  in cw1200_load_firmware()
412 		priv->ba_rx_tid_mask = 0;  in cw1200_load_firmware()
413 		priv->ba_tx_tid_mask = 0;  in cw1200_load_firmware()
419 			pr_err("(1) HW detection: can't read CUT ID\n");  in cw1200_load_firmware()
424 			pr_err("(2) HW detection: can't read CUT ID.\n");  in cw1200_load_firmware()
430 			pr_err("(3) HW detection: can't read CUT ID.\n");  in cw1200_load_firmware()
437 			pr_info("CW1x00 Cut 2.2 silicon detected.\n");  in cw1200_load_firmware()
438 			priv->hw_revision = CW1200_HW_REV_CUT22;  in cw1200_load_firmware()
440 			pr_info("CW1x00 Cut 2.0 silicon detected.\n");  in cw1200_load_firmware()
441 			priv->hw_revision = CW1200_HW_REV_CUT20;  in cw1200_load_firmware()
446 		pr_info("CW1x60 silicon detected.\n");  in cw1200_load_firmware()
447 		priv->hw_revision = CW1X60_HW_REV;  in cw1200_load_firmware()
450 		pr_err("Unsupported silicon major revision %d.\n",  in cw1200_load_firmware()
452 		ret = -ENOTSUPP;  in cw1200_load_firmware()
465 		ret = -EINVAL;  in cw1200_load_firmware()
469 	switch (priv->hw_type)  {  in cw1200_load_firmware()
471 		if (priv->hw_revision == CW1X60_HW_REV) {  in cw1200_load_firmware()
473 			ret = -ENOTSUPP;  in cw1200_load_firmware()
480 		       priv->hw_type);  in cw1200_load_firmware()
481 		ret = -ENOTSUPP;  in cw1200_load_firmware()
490 	priv->hwbus_ops->lock(priv->hwbus_priv);  in cw1200_load_firmware()
492 	priv->hwbus_ops->unlock(priv->hwbus_priv);  in cw1200_load_firmware()
519 	priv->hwbus_ops->lock(priv->hwbus_priv);  in cw1200_load_firmware()
521 	priv->hwbus_ops->unlock(priv->hwbus_priv);  in cw1200_load_firmware()