Commit 151a9706 authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
Browse files

wil6210: firmware download 



Firmware download implemented but is still experimental feature;
flag controlling it added, no_fw_load. It is true by default,
use no_fw_load=N to activate feature.

Reset flows also got some adjustment for the fw download to work

Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent bc944506

drivers/net/wireless/ath/wil6210/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ wil6210-y += interrupt.o 
wil6210-y += txrx.o

wil6210-y += debug.o

wil6210-y += rx_reorder.o

wil6210-y += fw.o

wil6210-$(CONFIG_WIL6210_TRACING) += trace.o



# for tracing framework to find trace.h

drivers/net/wireless/ath/wil6210/fw.c

0 → 100644
+45 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014 Qualcomm Atheros, Inc.

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#include <linux/firmware.h>

#include <linux/module.h>

#include <linux/pci.h>

#include <linux/crc32.h>

#include "wil6210.h"

#include "fw.h"



MODULE_FIRMWARE(WIL_FW_NAME);



/* target operations */

/* register read */

#define R(a) ioread32(wil->csr + HOSTADDR(a))

/* register write. wmb() to make sure it is completed */

#define W(a, v) do { iowrite32(v, wil->csr + HOSTADDR(a)); wmb(); } while (0)

/* register set = read, OR, write */

#define S(a, v) W(a, R(a) | v)

/* register clear = read, AND with inverted, write */

#define C(a, v) W(a, R(a) & ~v)



static

void wil_memset_toio_32(volatile void __iomem *dst, u32 val,

			size_t count)

{

	volatile u32 __iomem *d = dst;



	for (count += 4; count > 4; count -= 4)

		__raw_writel(val, d++);

}



#include "fw_inc.c"

drivers/net/wireless/ath/wil6210/fw.h

0 → 100644
+149 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014 Qualcomm Atheros, Inc.

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */



#define WIL_FW_SIGNATURE (0x36323130) /* '0126' */

#define WIL_FW_FMT_VERSION (1) /* format version driver supports */



enum wil_fw_record_type {

	wil_fw_type_comment = 1,

	wil_fw_type_data = 2,

	wil_fw_type_fill = 3,

	wil_fw_type_action = 4,

	wil_fw_type_verify = 5,

	wil_fw_type_file_header = 6,

	wil_fw_type_direct_write = 7,

	wil_fw_type_gateway_data = 8,

	wil_fw_type_gateway_data4 = 9,

};



struct wil_fw_record_head {

	__le16 type; /* enum wil_fw_record_type */

	__le16 flags; /* to be defined */

	__le32 size; /* whole record, bytes after head */

} __packed;



/* data block. write starting from @addr

 * data_size inferred from the @head.size. For this case,

 * data_size = @head.size - offsetof(struct wil_fw_record_data, data)

 */

struct wil_fw_record_data { /* type == wil_fw_type_data */

	__le32 addr;

	__le32 data[0]; /* [data_size], see above */

} __packed;



/* fill with constant @value, @size bytes starting from @addr */

struct wil_fw_record_fill { /* type == wil_fw_type_fill */

	__le32 addr;

	__le32 value;

	__le32 size;

} __packed;



/* free-form comment

 * for informational purpose, data_size is @head.size from record header

 */

struct wil_fw_record_comment { /* type == wil_fw_type_comment */

	u8 data[0]; /* free-form data [data_size], see above */

} __packed;



/* perform action

 * data_size = @head.size - offsetof(struct wil_fw_record_action, data)

 */

struct wil_fw_record_action { /* type == wil_fw_type_action */

	__le32 action; /* action to perform: reset, wait for fw ready etc. */

	__le32 data[0]; /* action specific, [data_size], see above */

} __packed;



/* data block for struct wil_fw_record_direct_write */

struct wil_fw_data_dwrite {

	__le32 addr;

	__le32 value;

	__le32 mask;

} __packed;



/* write @value to the @addr,

 * preserve original bits accordingly to the @mask

 * data_size is @head.size where @head is record header

 */

struct wil_fw_record_direct_write { /* type == wil_fw_type_direct_write */

	struct wil_fw_data_dwrite data[0];

} __packed;



/* verify condition: [@addr] & @mask == @value

 * if condition not met, firmware download fails

 */

struct wil_fw_record_verify { /* type == wil_fw_verify */

	__le32 addr; /* read from this address */

	__le32 value; /* reference value */

	__le32 mask; /* mask for verification */

} __packed;



/* file header

 * First record of every file

 */

struct wil_fw_record_file_header {

	__le32 signature ; /* Wilocity signature */

	__le32 reserved;

	__le32 crc; /* crc32 of the following data  */

	__le32 version; /* format version */

	__le32 data_len; /* total data in file, including this record */

	u8 comment[32]; /* short description */

} __packed;



/* 1-dword gateway */

/* data block for the struct wil_fw_record_gateway_data */

struct wil_fw_data_gw {

	__le32 addr;

	__le32 value;

} __packed;



/* gateway write block.

 * write starting address and values from the data buffer

 * through the gateway

 * data_size inferred from the @head.size. For this case,

 * data_size = @head.size - offsetof(struct wil_fw_record_gateway_data, data)

 */

struct wil_fw_record_gateway_data { /* type == wil_fw_type_gateway_data */

	__le32 gateway_addr_addr;

	__le32 gateway_value_addr;

	__le32 gateway_cmd_addr;

	__le32 gateway_ctrl_address;

#define WIL_FW_GW_CTL_BUSY	BIT(29) /* gateway busy performing operation */

#define WIL_FW_GW_CTL_RUN	BIT(30) /* start gateway operation */

	__le32 command;

	struct wil_fw_data_gw data[0]; /* total size [data_size], see above */

} __packed;



/* 4-dword gateway */

/* data block for the struct wil_fw_record_gateway_data4 */

struct wil_fw_data_gw4 {

	__le32 addr;

	__le32 value[4];

} __packed;



/* gateway write block.

 * write starting address and values from the data buffer

 * through the gateway

 * data_size inferred from the @head.size. For this case,

 * data_size = @head.size - offsetof(struct wil_fw_record_gateway_data4, data)

 */

struct wil_fw_record_gateway_data4 { /* type == wil_fw_type_gateway_data4 */

	__le32 gateway_addr_addr;

	__le32 gateway_value_addr[4];

	__le32 gateway_cmd_addr;

	__le32 gateway_ctrl_address; /* same logic as for 1-dword gw */

	__le32 command;

	struct wil_fw_data_gw4 data[0]; /* total size [data_size], see above */

} __packed;

drivers/net/wireless/ath/wil6210/fw_inc.c

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Original line number Diff line number Diff line 
/*

 * Copyright (c) 2014 Qualcomm Atheros, Inc.

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */



/* Algorithmic part of the firmware download.

 * To be included in the container file providing framework

 */



#define wil_err_fw(wil, fmt, arg...) wil_err(wil, "ERR[ FW ]" fmt, ##arg)

#define wil_dbg_fw(wil, fmt, arg...) wil_dbg(wil, "DBG[ FW ]" fmt, ##arg)

#define wil_hex_dump_fw(prefix_str, prefix_type, rowsize,		\

			groupsize, buf, len, ascii)			\

			print_hex_dump_debug("DBG[ FW ]" prefix_str,	\

					     prefix_type, rowsize,	\

					     groupsize, buf, len, ascii)



#define FW_ADDR_CHECK(ioaddr, val, msg) do { \

		ioaddr = wmi_buffer(wil, val); \

		if (!ioaddr) { \

			wil_err_fw(wil, "bad " msg ": 0x%08x\n", \

				   le32_to_cpu(val)); \

			return -EINVAL; \

		} \

	} while (0)



/**

 * wil_fw_verify - verify firmware file validity

 *

 * perform various checks for the firmware file header.

 * records are not validated.

 *

 * Return file size or negative error

 */

static int wil_fw_verify(struct wil6210_priv *wil, const u8 *data, size_t size)

{

	const struct wil_fw_record_head *hdr = (const void *)data;

	struct wil_fw_record_file_header fh;

	const struct wil_fw_record_file_header *fh_;

	u32 crc;

	u32 dlen;



	if (size % 4) {

		wil_err_fw(wil, "image size not aligned: %zu\n", size);

		return -EINVAL;

	}

	/* have enough data for the file header? */

	if (size < sizeof(*hdr) + sizeof(fh)) {

		wil_err_fw(wil, "file too short: %zu bytes\n", size);

		return -EINVAL;

	}



	/* start with the file header? */

	if (le16_to_cpu(hdr->type) != wil_fw_type_file_header) {

		wil_err_fw(wil, "no file header\n");

		return -EINVAL;

	}



	/* data_len */

	fh_ = (struct wil_fw_record_file_header *)&hdr[1];

	dlen = le32_to_cpu(fh_->data_len);

	if (dlen % 4) {

		wil_err_fw(wil, "data length not aligned: %lu\n", (ulong)dlen);

		return -EINVAL;

	}

	if (size < dlen) {

		wil_err_fw(wil, "file truncated at %zu/%lu\n",

			   size, (ulong)dlen);

		return -EINVAL;

	}

	if (dlen < sizeof(*hdr) + sizeof(fh)) {

		wil_err_fw(wil, "data length too short: %lu\n", (ulong)dlen);

		return -EINVAL;

	}



	/* signature */

	if (le32_to_cpu(fh_->signature) != WIL_FW_SIGNATURE) {

		wil_err_fw(wil, "bad header signature: 0x%08x\n",

			   le32_to_cpu(fh_->signature));

		return -EINVAL;

	}



	/* version */

	if (le32_to_cpu(fh_->version) > WIL_FW_FMT_VERSION) {

		wil_err_fw(wil, "unsupported header version: %d\n",

			   le32_to_cpu(fh_->version));

		return -EINVAL;

	}



	/* checksum. ~crc32(~0, data, size) when fh.crc set to 0*/

	fh = *fh_;

	fh.crc = 0;



	crc = crc32_le(~0, (unsigned char const *)hdr, sizeof(*hdr));

	crc = crc32_le(crc, (unsigned char const *)&fh, sizeof(fh));

	crc = crc32_le(crc, (unsigned char const *)&fh_[1],

		       dlen - sizeof(*hdr) - sizeof(fh));

	crc = ~crc;



	if (crc != le32_to_cpu(fh_->crc)) {

		wil_err_fw(wil, "checksum mismatch:"

			   " calculated for %lu bytes 0x%08x != 0x%08x\n",

			   (ulong)dlen, crc, le32_to_cpu(fh_->crc));

		return -EINVAL;

	}



	return (int)dlen;

}



static int fw_handle_comment(struct wil6210_priv *wil, const void *data,

			     size_t size)

{

	wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, data, size, true);



	return 0;

}



static int fw_handle_data(struct wil6210_priv *wil, const void *data,

			  size_t size)

{

	const struct wil_fw_record_data *d = data;

	void __iomem *dst;

	size_t s = size - sizeof(*d);



	if (size < sizeof(*d) + sizeof(u32)) {

		wil_err_fw(wil, "data record too short: %zu\n", size);

		return -EINVAL;

	}



	FW_ADDR_CHECK(dst, d->addr, "address");

	wil_dbg_fw(wil, "write [0x%08x] <== %zu bytes\n", le32_to_cpu(d->addr),

		   s);

	wil_memcpy_toio_32(dst, d->data, s);

	wmb(); /* finish before processing next record */



	return 0;

}



static int fw_handle_fill(struct wil6210_priv *wil, const void *data,

			  size_t size)

{

	const struct wil_fw_record_fill *d = data;

	void __iomem *dst;

	u32 v;

	size_t s = (size_t)le32_to_cpu(d->size);



	if (size != sizeof(*d)) {

		wil_err_fw(wil, "bad size for fill record: %zu\n", size);

		return -EINVAL;

	}



	if (s < sizeof(u32)) {

		wil_err_fw(wil, "fill size too short: %zu\n", s);

		return -EINVAL;

	}



	if (s % sizeof(u32)) {

		wil_err_fw(wil, "fill size not aligned: %zu\n", s);

		return -EINVAL;

	}



	FW_ADDR_CHECK(dst, d->addr, "address");



	v = le32_to_cpu(d->value);

	wil_dbg_fw(wil, "fill [0x%08x] <== 0x%08x, %zu bytes\n",

		   le32_to_cpu(d->addr), v, s);

	wil_memset_toio_32(dst, v, s);

	wmb(); /* finish before processing next record */



	return 0;

}



static int fw_handle_file_header(struct wil6210_priv *wil, const void *data,

				 size_t size)

{

	const struct wil_fw_record_file_header *d = data;



	if (size != sizeof(*d)) {

		wil_err_fw(wil, "file header length incorrect: %zu\n", size);

		return -EINVAL;

	}



	wil_dbg_fw(wil, "new file, ver. %d, %i bytes\n",

		   d->version, d->data_len);

	wil_hex_dump_fw("", DUMP_PREFIX_OFFSET, 16, 1, d->comment,

			sizeof(d->comment), true);



	return 0;

}



static int fw_handle_direct_write(struct wil6210_priv *wil, const void *data,

				  size_t size)

{

	const struct wil_fw_record_direct_write *d = data;

	const struct wil_fw_data_dwrite *block = d->data;

	int n, i;



	if (size % sizeof(*block)) {

		wil_err_fw(wil, "record size not aligned on %zu: %zu\n",

			   sizeof(*block), size);

		return -EINVAL;

	}

	n = size / sizeof(*block);



	for (i = 0; i < n; i++) {

		void __iomem *dst;

		u32 m = le32_to_cpu(block[i].mask);

		u32 v = le32_to_cpu(block[i].value);

		u32 x, y;



		FW_ADDR_CHECK(dst, block[i].addr, "address");



		x = ioread32(dst);

		y = (x & m) | (v & ~m);

		wil_dbg_fw(wil, "write [0x%08x] <== 0x%08x "

			   "(old 0x%08x val 0x%08x mask 0x%08x)\n",

			   le32_to_cpu(block[i].addr), y, x, v, m);

		iowrite32(y, dst);

		wmb(); /* finish before processing next record */

	}



	return 0;

}



static int gw_write(struct wil6210_priv *wil, void __iomem *gwa_addr,

		    void __iomem *gwa_cmd, void __iomem *gwa_ctl, u32 gw_cmd,

		    u32 a)

{

	unsigned delay = 0;



	iowrite32(a, gwa_addr);

	iowrite32(gw_cmd, gwa_cmd);

	wmb(); /* finish before activate gw */



	iowrite32(WIL_FW_GW_CTL_RUN, gwa_ctl); /* activate gw */

	do {

		udelay(1); /* typical time is few usec */

		if (delay++ > 100) {

			wil_err_fw(wil, "gw timeout\n");

			return -EINVAL;

		}

	} while (ioread32(gwa_ctl) & WIL_FW_GW_CTL_BUSY); /* gw done? */



	return 0;

}



static int fw_handle_gateway_data(struct wil6210_priv *wil, const void *data,

				  size_t size)

{

	const struct wil_fw_record_gateway_data *d = data;

	const struct wil_fw_data_gw *block = d->data;

	void __iomem *gwa_addr;

	void __iomem *gwa_val;

	void __iomem *gwa_cmd;

	void __iomem *gwa_ctl;

	u32 gw_cmd;

	int n, i;



	if (size < sizeof(*d) + sizeof(*block)) {

		wil_err_fw(wil, "gateway record too short: %zu\n", size);

		return -EINVAL;

	}



	if ((size - sizeof(*d)) % sizeof(*block)) {

		wil_err_fw(wil, "gateway record data size"

			   " not aligned on %zu: %zu\n",

			   sizeof(*block), size - sizeof(*d));

		return -EINVAL;

	}

	n = (size - sizeof(*d)) / sizeof(*block);



	gw_cmd = le32_to_cpu(d->command);



	wil_dbg_fw(wil, "gw write record [%3d] blocks, cmd 0x%08x\n",

		   n, gw_cmd);



	FW_ADDR_CHECK(gwa_addr, d->gateway_addr_addr, "gateway_addr_addr");

	FW_ADDR_CHECK(gwa_val, d->gateway_value_addr, "gateway_value_addr");

	FW_ADDR_CHECK(gwa_cmd, d->gateway_cmd_addr, "gateway_cmd_addr");

	FW_ADDR_CHECK(gwa_ctl, d->gateway_ctrl_address, "gateway_ctrl_address");



	wil_dbg_fw(wil, "gw addresses: addr 0x%08x val 0x%08x"

		   " cmd 0x%08x ctl 0x%08x\n",

		   le32_to_cpu(d->gateway_addr_addr),

		   le32_to_cpu(d->gateway_value_addr),

		   le32_to_cpu(d->gateway_cmd_addr),

		   le32_to_cpu(d->gateway_ctrl_address));



	for (i = 0; i < n; i++) {

		int rc;

		u32 a = le32_to_cpu(block[i].addr);

		u32 v = le32_to_cpu(block[i].value);



		wil_dbg_fw(wil, "  gw write[%3d] [0x%08x] <== 0x%08x\n",

			   i, a, v);



		iowrite32(v, gwa_val);

		rc = gw_write(wil, gwa_addr, gwa_cmd, gwa_ctl, gw_cmd, a);

		if (rc)

			return rc;

	}



	return 0;

}



static int fw_handle_gateway_data4(struct wil6210_priv *wil, const void *data,

				   size_t size)

{

	const struct wil_fw_record_gateway_data4 *d = data;

	const struct wil_fw_data_gw4 *block = d->data;

	void __iomem *gwa_addr;

	void __iomem *gwa_val[ARRAY_SIZE(block->value)];

	void __iomem *gwa_cmd;

	void __iomem *gwa_ctl;

	u32 gw_cmd;

	int n, i, k;



	if (size < sizeof(*d) + sizeof(*block)) {

		wil_err_fw(wil, "gateway4 record too short: %zu\n", size);

		return -EINVAL;

	}



	if ((size - sizeof(*d)) % sizeof(*block)) {

		wil_err_fw(wil, "gateway4 record data size"

			   " not aligned on %zu: %zu\n",

			   sizeof(*block), size - sizeof(*d));

		return -EINVAL;

	}

	n = (size - sizeof(*d)) / sizeof(*block);



	gw_cmd = le32_to_cpu(d->command);



	wil_dbg_fw(wil, "gw4 write record [%3d] blocks, cmd 0x%08x\n",

		   n, gw_cmd);



	FW_ADDR_CHECK(gwa_addr, d->gateway_addr_addr, "gateway_addr_addr");

	for (k = 0; k < ARRAY_SIZE(block->value); k++)

		FW_ADDR_CHECK(gwa_val[k], d->gateway_value_addr[k],

			      "gateway_value_addr");

	FW_ADDR_CHECK(gwa_cmd, d->gateway_cmd_addr, "gateway_cmd_addr");

	FW_ADDR_CHECK(gwa_ctl, d->gateway_ctrl_address, "gateway_ctrl_address");



	wil_dbg_fw(wil, "gw4 addresses: addr 0x%08x cmd 0x%08x ctl 0x%08x\n",

		   le32_to_cpu(d->gateway_addr_addr),

		   le32_to_cpu(d->gateway_cmd_addr),

		   le32_to_cpu(d->gateway_ctrl_address));

	wil_hex_dump_fw("val addresses: ", DUMP_PREFIX_NONE, 16, 4,

			d->gateway_value_addr, sizeof(d->gateway_value_addr),

			false);



	for (i = 0; i < n; i++) {

		int rc;

		u32 a = le32_to_cpu(block[i].addr);

		u32 v[ARRAY_SIZE(block->value)];



		for (k = 0; k < ARRAY_SIZE(block->value); k++)

			v[k] = le32_to_cpu(block[i].value[k]);



		wil_dbg_fw(wil, "  gw4 write[%3d] [0x%08x] <==\n", i, a);

		wil_hex_dump_fw("    val ", DUMP_PREFIX_NONE, 16, 4, v,

				sizeof(v), false);



		for (k = 0; k < ARRAY_SIZE(block->value); k++)

			iowrite32(v[k], gwa_val[k]);

		rc = gw_write(wil, gwa_addr, gwa_cmd, gwa_ctl, gw_cmd, a);

		if (rc)

			return rc;

	}



	return 0;

}



static const struct {

	int type;

	int (*handler)(struct wil6210_priv *wil, const void *data, size_t size);

} wil_fw_handlers[] = {

	{wil_fw_type_comment, fw_handle_comment},

	{wil_fw_type_data, fw_handle_data},

	{wil_fw_type_fill, fw_handle_fill},

	/* wil_fw_type_action */

	/* wil_fw_type_verify */

	{wil_fw_type_file_header, fw_handle_file_header},

	{wil_fw_type_direct_write, fw_handle_direct_write},

	{wil_fw_type_gateway_data, fw_handle_gateway_data},

	{wil_fw_type_gateway_data4, fw_handle_gateway_data4},

};



static int wil_fw_handle_record(struct wil6210_priv *wil, int type,

				const void *data, size_t size)

{

	int i;



	for (i = 0; i < ARRAY_SIZE(wil_fw_handlers); i++) {

		if (wil_fw_handlers[i].type == type)

			return wil_fw_handlers[i].handler(wil, data, size);

	}



	wil_err_fw(wil, "unknown record type: %d\n", type);

	return -EINVAL;

}



/**

 * wil_fw_load - load FW into device

 *

 * Load the FW and uCode code and data to the corresponding device

 * memory regions

 *

 * Return error code

 */

static int wil_fw_load(struct wil6210_priv *wil, const void *data, size_t size)

{

	int rc = 0;

	const struct wil_fw_record_head *hdr;

	size_t s, hdr_sz;



	for (hdr = data;; hdr = (const void *)hdr + s, size -= s) {

		if (size < sizeof(*hdr))

			break;

		hdr_sz = le32_to_cpu(hdr->size);

		s = sizeof(*hdr) + hdr_sz;

		if (s > size)

			break;

		if (hdr_sz % 4) {

			wil_err_fw(wil, "unaligned record size: %zu\n",

				   hdr_sz);

			return -EINVAL;

		}

		rc = wil_fw_handle_record(wil, le16_to_cpu(hdr->type),

					  &hdr[1], hdr_sz);

		if (rc)

			return rc;

	}

	if (size) {

		wil_err_fw(wil, "unprocessed bytes: %zu\n", size);

		if (size >= sizeof(*hdr)) {

			wil_err_fw(wil, "Stop at offset %ld"

				   " record type %d [%zd bytes]\n",

				   (const void *)hdr - data,

				   le16_to_cpu(hdr->type), hdr_sz);

		}

		return -EINVAL;

	}

	/* Mark FW as loaded from host */

	S(RGF_USER_USAGE_6, 1);



	return rc;

}



/**

 * wil_request_firmware - Request firmware and load to device

 *

 * Request firmware image from the file and load it to device

 *

 * Return error code

 */

int wil_request_firmware(struct wil6210_priv *wil, const char *name)

{

	int rc, rc1;

	const struct firmware *fw;

	size_t sz;

	const void *d;



	rc = request_firmware(&fw, name, wil_to_pcie_dev(wil));

	if (rc) {

		wil_err_fw(wil, "Failed to load firmware %s\n", name);

		return rc;

	}

	wil_dbg_fw(wil, "Loading <%s>, %zu bytes\n", name, fw->size);



	for (sz = fw->size, d = fw->data; sz; sz -= rc1, d += rc1) {

		rc1 = wil_fw_verify(wil, d, sz);

		if (rc1 < 0) {

			rc = rc1;

			goto out;

		}

		rc = wil_fw_load(wil, d, rc1);

		if (rc < 0)

			goto out;

	}



out:

	release_firmware(fw);

	return rc;

}

drivers/net/wireless/ath/wil6210/interrupt.c

+1 −0
Original line number Diff line number Diff line
@@ -522,6 +522,7 @@ void wil6210_clear_irq(struct wil6210_priv *wil) 
		    offsetof(struct RGF_ICR, ICR));

	wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_MISC_ICR) +

		    offsetof(struct RGF_ICR, ICR));

	wmb(); /* make sure write completed */

}



int wil6210_init_irq(struct wil6210_priv *wil, int irq)

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