From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Fri, 25 Mar 2016 03:53:42 -0300
Subject: Linux-libre 4.5-gnu

---
 drivers/net/wireless/brcm80211/brcmfmac/firmware.c | 542 ---------------------
 1 file changed, 542 deletions(-)
 delete mode 100644 drivers/net/wireless/brcm80211/brcmfmac/firmware.c

(limited to 'drivers/net/wireless/brcm80211/brcmfmac/firmware.c')

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
deleted file mode 100644
index 44bbea573..000000000
--- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
+++ /dev/null
@@ -1,542 +0,0 @@
-/*
- * Copyright (c) 2013 Broadcom Corporation
- *
- * 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/kernel.h>
-#include <linux/slab.h>
-#include <linux/device.h>
-#include <linux/firmware.h>
-#include <linux/module.h>
-#include <linux/bcm47xx_nvram.h>
-
-#include "debug.h"
-#include "firmware.h"
-
-#define BRCMF_FW_MAX_NVRAM_SIZE			64000
-#define BRCMF_FW_NVRAM_DEVPATH_LEN		19	/* devpath0=pcie/1/4/ */
-#define BRCMF_FW_NVRAM_PCIEDEV_LEN		10	/* pcie/1/4/ + \0 */
-
-char brcmf_firmware_path[BRCMF_FW_PATH_LEN];
-module_param_string(alternative_fw_path, brcmf_firmware_path,
-		    BRCMF_FW_PATH_LEN, 0440);
-
-enum nvram_parser_state {
-	IDLE,
-	KEY,
-	VALUE,
-	COMMENT,
-	END
-};
-
-/**
- * struct nvram_parser - internal info for parser.
- *
- * @state: current parser state.
- * @data: input buffer being parsed.
- * @nvram: output buffer with parse result.
- * @nvram_len: lenght of parse result.
- * @line: current line.
- * @column: current column in line.
- * @pos: byte offset in input buffer.
- * @entry: start position of key,value entry.
- * @multi_dev_v1: detect pcie multi device v1 (compressed).
- * @multi_dev_v2: detect pcie multi device v2.
- */
-struct nvram_parser {
-	enum nvram_parser_state state;
-	const u8 *data;
-	u8 *nvram;
-	u32 nvram_len;
-	u32 line;
-	u32 column;
-	u32 pos;
-	u32 entry;
-	bool multi_dev_v1;
-	bool multi_dev_v2;
-};
-
-/**
- * is_nvram_char() - check if char is a valid one for NVRAM entry
- *
- * It accepts all printable ASCII chars except for '#' which opens a comment.
- * Please note that ' ' (space) while accepted is not a valid key name char.
- */
-static bool is_nvram_char(char c)
-{
-	/* comment marker excluded */
-	if (c == '#')
-		return false;
-
-	/* key and value may have any other readable character */
-	return (c >= 0x20 && c < 0x7f);
-}
-
-static bool is_whitespace(char c)
-{
-	return (c == ' ' || c == '\r' || c == '\n' || c == '\t');
-}
-
-static enum nvram_parser_state brcmf_nvram_handle_idle(struct nvram_parser *nvp)
-{
-	char c;
-
-	c = nvp->data[nvp->pos];
-	if (c == '\n')
-		return COMMENT;
-	if (is_whitespace(c))
-		goto proceed;
-	if (c == '#')
-		return COMMENT;
-	if (is_nvram_char(c)) {
-		nvp->entry = nvp->pos;
-		return KEY;
-	}
-	brcmf_dbg(INFO, "warning: ln=%d:col=%d: ignoring invalid character\n",
-		  nvp->line, nvp->column);
-proceed:
-	nvp->column++;
-	nvp->pos++;
-	return IDLE;
-}
-
-static enum nvram_parser_state brcmf_nvram_handle_key(struct nvram_parser *nvp)
-{
-	enum nvram_parser_state st = nvp->state;
-	char c;
-
-	c = nvp->data[nvp->pos];
-	if (c == '=') {
-		/* ignore RAW1 by treating as comment */
-		if (strncmp(&nvp->data[nvp->entry], "RAW1", 4) == 0)
-			st = COMMENT;
-		else
-			st = VALUE;
-		if (strncmp(&nvp->data[nvp->entry], "devpath", 7) == 0)
-			nvp->multi_dev_v1 = true;
-		if (strncmp(&nvp->data[nvp->entry], "pcie/", 5) == 0)
-			nvp->multi_dev_v2 = true;
-	} else if (!is_nvram_char(c) || c == ' ') {
-		brcmf_dbg(INFO, "warning: ln=%d:col=%d: '=' expected, skip invalid key entry\n",
-			  nvp->line, nvp->column);
-		return COMMENT;
-	}
-
-	nvp->column++;
-	nvp->pos++;
-	return st;
-}
-
-static enum nvram_parser_state
-brcmf_nvram_handle_value(struct nvram_parser *nvp)
-{
-	char c;
-	char *skv;
-	char *ekv;
-	u32 cplen;
-
-	c = nvp->data[nvp->pos];
-	if (!is_nvram_char(c)) {
-		/* key,value pair complete */
-		ekv = (u8 *)&nvp->data[nvp->pos];
-		skv = (u8 *)&nvp->data[nvp->entry];
-		cplen = ekv - skv;
-		if (nvp->nvram_len + cplen + 1 >= BRCMF_FW_MAX_NVRAM_SIZE)
-			return END;
-		/* copy to output buffer */
-		memcpy(&nvp->nvram[nvp->nvram_len], skv, cplen);
-		nvp->nvram_len += cplen;
-		nvp->nvram[nvp->nvram_len] = '\0';
-		nvp->nvram_len++;
-		return IDLE;
-	}
-	nvp->pos++;
-	nvp->column++;
-	return VALUE;
-}
-
-static enum nvram_parser_state
-brcmf_nvram_handle_comment(struct nvram_parser *nvp)
-{
-	char *eoc, *sol;
-
-	sol = (char *)&nvp->data[nvp->pos];
-	eoc = strchr(sol, '\n');
-	if (!eoc) {
-		eoc = strchr(sol, '\0');
-		if (!eoc)
-			return END;
-	}
-
-	/* eat all moving to next line */
-	nvp->line++;
-	nvp->column = 1;
-	nvp->pos += (eoc - sol) + 1;
-	return IDLE;
-}
-
-static enum nvram_parser_state brcmf_nvram_handle_end(struct nvram_parser *nvp)
-{
-	/* final state */
-	return END;
-}
-
-static enum nvram_parser_state
-(*nv_parser_states[])(struct nvram_parser *nvp) = {
-	brcmf_nvram_handle_idle,
-	brcmf_nvram_handle_key,
-	brcmf_nvram_handle_value,
-	brcmf_nvram_handle_comment,
-	brcmf_nvram_handle_end
-};
-
-static int brcmf_init_nvram_parser(struct nvram_parser *nvp,
-				   const u8 *data, size_t data_len)
-{
-	size_t size;
-
-	memset(nvp, 0, sizeof(*nvp));
-	nvp->data = data;
-	/* Limit size to MAX_NVRAM_SIZE, some files contain lot of comment */
-	if (data_len > BRCMF_FW_MAX_NVRAM_SIZE)
-		size = BRCMF_FW_MAX_NVRAM_SIZE;
-	else
-		size = data_len;
-	/* Alloc for extra 0 byte + roundup by 4 + length field */
-	size += 1 + 3 + sizeof(u32);
-	nvp->nvram = kzalloc(size, GFP_KERNEL);
-	if (!nvp->nvram)
-		return -ENOMEM;
-
-	nvp->line = 1;
-	nvp->column = 1;
-	return 0;
-}
-
-/* brcmf_fw_strip_multi_v1 :Some nvram files contain settings for multiple
- * devices. Strip it down for one device, use domain_nr/bus_nr to determine
- * which data is to be returned. v1 is the version where nvram is stored
- * compressed and "devpath" maps to index for valid entries.
- */
-static void brcmf_fw_strip_multi_v1(struct nvram_parser *nvp, u16 domain_nr,
-				    u16 bus_nr)
-{
-	/* Device path with a leading '=' key-value separator */
-	char pci_path[] = "=pci/?/?";
-	size_t pci_len;
-	char pcie_path[] = "=pcie/?/?";
-	size_t pcie_len;
-
-	u32 i, j;
-	bool found;
-	u8 *nvram;
-	u8 id;
-
-	nvram = kzalloc(nvp->nvram_len + 1 + 3 + sizeof(u32), GFP_KERNEL);
-	if (!nvram)
-		goto fail;
-
-	/* min length: devpath0=pcie/1/4/ + 0:x=y */
-	if (nvp->nvram_len < BRCMF_FW_NVRAM_DEVPATH_LEN + 6)
-		goto fail;
-
-	/* First search for the devpathX and see if it is the configuration
-	 * for domain_nr/bus_nr. Search complete nvp
-	 */
-	snprintf(pci_path, sizeof(pci_path), "=pci/%d/%d", domain_nr,
-		 bus_nr);
-	pci_len = strlen(pci_path);
-	snprintf(pcie_path, sizeof(pcie_path), "=pcie/%d/%d", domain_nr,
-		 bus_nr);
-	pcie_len = strlen(pcie_path);
-	found = false;
-	i = 0;
-	while (i < nvp->nvram_len - BRCMF_FW_NVRAM_DEVPATH_LEN) {
-		/* Format: devpathX=pcie/Y/Z/
-		 * Y = domain_nr, Z = bus_nr, X = virtual ID
-		 */
-		if (strncmp(&nvp->nvram[i], "devpath", 7) == 0 &&
-		    (!strncmp(&nvp->nvram[i + 8], pci_path, pci_len) ||
-		     !strncmp(&nvp->nvram[i + 8], pcie_path, pcie_len))) {
-			id = nvp->nvram[i + 7] - '0';
-			found = true;
-			break;
-		}
-		while (nvp->nvram[i] != 0)
-			i++;
-		i++;
-	}
-	if (!found)
-		goto fail;
-
-	/* Now copy all valid entries, release old nvram and assign new one */
-	i = 0;
-	j = 0;
-	while (i < nvp->nvram_len) {
-		if ((nvp->nvram[i] - '0' == id) && (nvp->nvram[i + 1] == ':')) {
-			i += 2;
-			while (nvp->nvram[i] != 0) {
-				nvram[j] = nvp->nvram[i];
-				i++;
-				j++;
-			}
-			nvram[j] = 0;
-			j++;
-		}
-		while (nvp->nvram[i] != 0)
-			i++;
-		i++;
-	}
-	kfree(nvp->nvram);
-	nvp->nvram = nvram;
-	nvp->nvram_len = j;
-	return;
-
-fail:
-	kfree(nvram);
-	nvp->nvram_len = 0;
-}
-
-/* brcmf_fw_strip_multi_v2 :Some nvram files contain settings for multiple
- * devices. Strip it down for one device, use domain_nr/bus_nr to determine
- * which data is to be returned. v2 is the version where nvram is stored
- * uncompressed, all relevant valid entries are identified by
- * pcie/domain_nr/bus_nr:
- */
-static void brcmf_fw_strip_multi_v2(struct nvram_parser *nvp, u16 domain_nr,
-				    u16 bus_nr)
-{
-	char prefix[BRCMF_FW_NVRAM_PCIEDEV_LEN];
-	size_t len;
-	u32 i, j;
-	u8 *nvram;
-
-	nvram = kzalloc(nvp->nvram_len + 1 + 3 + sizeof(u32), GFP_KERNEL);
-	if (!nvram)
-		goto fail;
-
-	/* Copy all valid entries, release old nvram and assign new one.
-	 * Valid entries are of type pcie/X/Y/ where X = domain_nr and
-	 * Y = bus_nr.
-	 */
-	snprintf(prefix, sizeof(prefix), "pcie/%d/%d/", domain_nr, bus_nr);
-	len = strlen(prefix);
-	i = 0;
-	j = 0;
-	while (i < nvp->nvram_len - len) {
-		if (strncmp(&nvp->nvram[i], prefix, len) == 0) {
-			i += len;
-			while (nvp->nvram[i] != 0) {
-				nvram[j] = nvp->nvram[i];
-				i++;
-				j++;
-			}
-			nvram[j] = 0;
-			j++;
-		}
-		while (nvp->nvram[i] != 0)
-			i++;
-		i++;
-	}
-	kfree(nvp->nvram);
-	nvp->nvram = nvram;
-	nvp->nvram_len = j;
-	return;
-fail:
-	kfree(nvram);
-	nvp->nvram_len = 0;
-}
-
-/* brcmf_nvram_strip :Takes a buffer of "<var>=<value>\n" lines read from a fil
- * and ending in a NUL. Removes carriage returns, empty lines, comment lines,
- * and converts newlines to NULs. Shortens buffer as needed and pads with NULs.
- * End of buffer is completed with token identifying length of buffer.
- */
-static void *brcmf_fw_nvram_strip(const u8 *data, size_t data_len,
-				  u32 *new_length, u16 domain_nr, u16 bus_nr)
-{
-	struct nvram_parser nvp;
-	u32 pad;
-	u32 token;
-	__le32 token_le;
-
-	if (brcmf_init_nvram_parser(&nvp, data, data_len) < 0)
-		return NULL;
-
-	while (nvp.pos < data_len) {
-		nvp.state = nv_parser_states[nvp.state](&nvp);
-		if (nvp.state == END)
-			break;
-	}
-	if (nvp.multi_dev_v1)
-		brcmf_fw_strip_multi_v1(&nvp, domain_nr, bus_nr);
-	else if (nvp.multi_dev_v2)
-		brcmf_fw_strip_multi_v2(&nvp, domain_nr, bus_nr);
-
-	if (nvp.nvram_len == 0) {
-		kfree(nvp.nvram);
-		return NULL;
-	}
-
-	pad = nvp.nvram_len;
-	*new_length = roundup(nvp.nvram_len + 1, 4);
-	while (pad != *new_length) {
-		nvp.nvram[pad] = 0;
-		pad++;
-	}
-
-	token = *new_length / 4;
-	token = (~token << 16) | (token & 0x0000FFFF);
-	token_le = cpu_to_le32(token);
-
-	memcpy(&nvp.nvram[*new_length], &token_le, sizeof(token_le));
-	*new_length += sizeof(token_le);
-
-	return nvp.nvram;
-}
-
-void brcmf_fw_nvram_free(void *nvram)
-{
-	kfree(nvram);
-}
-
-struct brcmf_fw {
-	struct device *dev;
-	u16 flags;
-	const struct firmware *code;
-	const char *nvram_name;
-	u16 domain_nr;
-	u16 bus_nr;
-	void (*done)(struct device *dev, const struct firmware *fw,
-		     void *nvram_image, u32 nvram_len);
-};
-
-static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
-{
-	struct brcmf_fw *fwctx = ctx;
-	u32 nvram_length = 0;
-	void *nvram = NULL;
-	u8 *data = NULL;
-	size_t data_len;
-	bool raw_nvram;
-
-	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
-	if (fw && fw->data) {
-		data = (u8 *)fw->data;
-		data_len = fw->size;
-		raw_nvram = false;
-	} else {
-		data = bcm47xx_nvram_get_contents(&data_len);
-		if (!data && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
-			goto fail;
-		raw_nvram = true;
-	}
-
-	if (data)
-		nvram = brcmf_fw_nvram_strip(data, data_len, &nvram_length,
-					     fwctx->domain_nr, fwctx->bus_nr);
-
-	if (raw_nvram)
-		bcm47xx_nvram_release_contents(data);
-	if (fw)
-		release_firmware(fw);
-	if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
-		goto fail;
-
-	fwctx->done(fwctx->dev, fwctx->code, nvram, nvram_length);
-	kfree(fwctx);
-	return;
-
-fail:
-	brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
-	release_firmware(fwctx->code);
-	device_release_driver(fwctx->dev);
-	kfree(fwctx);
-}
-
-static void brcmf_fw_request_code_done(const struct firmware *fw, void *ctx)
-{
-	struct brcmf_fw *fwctx = ctx;
-	int ret;
-
-	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
-	if (!fw)
-		goto fail;
-
-	/* only requested code so done here */
-	if (!(fwctx->flags & BRCMF_FW_REQUEST_NVRAM)) {
-		fwctx->done(fwctx->dev, fw, NULL, 0);
-		kfree(fwctx);
-		return;
-	}
-	fwctx->code = fw;
-	ret = reject_firmware_nowait(THIS_MODULE, true, fwctx->nvram_name,
-				      fwctx->dev, GFP_KERNEL, fwctx,
-				      brcmf_fw_request_nvram_done);
-
-	if (!ret)
-		return;
-
-	brcmf_fw_request_nvram_done(NULL, fwctx);
-	return;
-
-fail:
-	brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
-	device_release_driver(fwctx->dev);
-	kfree(fwctx);
-}
-
-int brcmf_fw_get_firmwares_pcie(struct device *dev, u16 flags,
-				const char *code, const char *nvram,
-				void (*fw_cb)(struct device *dev,
-					      const struct firmware *fw,
-					      void *nvram_image, u32 nvram_len),
-				u16 domain_nr, u16 bus_nr)
-{
-	struct brcmf_fw *fwctx;
-
-	brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(dev));
-	if (!fw_cb || !code)
-		return -EINVAL;
-
-	if ((flags & BRCMF_FW_REQUEST_NVRAM) && !nvram)
-		return -EINVAL;
-
-	fwctx = kzalloc(sizeof(*fwctx), GFP_KERNEL);
-	if (!fwctx)
-		return -ENOMEM;
-
-	fwctx->dev = dev;
-	fwctx->flags = flags;
-	fwctx->done = fw_cb;
-	if (flags & BRCMF_FW_REQUEST_NVRAM)
-		fwctx->nvram_name = nvram;
-	fwctx->domain_nr = domain_nr;
-	fwctx->bus_nr = bus_nr;
-
-	return reject_firmware_nowait(THIS_MODULE, true, code, dev,
-				       GFP_KERNEL, fwctx,
-				       brcmf_fw_request_code_done);
-}
-
-int brcmf_fw_get_firmwares(struct device *dev, u16 flags,
-			   const char *code, const char *nvram,
-			   void (*fw_cb)(struct device *dev,
-					 const struct firmware *fw,
-					 void *nvram_image, u32 nvram_len))
-{
-	return brcmf_fw_get_firmwares_pcie(dev, flags, code, nvram, fw_cb, 0,
-					   0);
-}
-
-- 
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