From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- drivers/net/wireless/orinoco/fw.c | 382 -------------------------------------- 1 file changed, 382 deletions(-) delete mode 100644 drivers/net/wireless/orinoco/fw.c (limited to 'drivers/net/wireless/orinoco/fw.c') diff --git a/drivers/net/wireless/orinoco/fw.c b/drivers/net/wireless/orinoco/fw.c deleted file mode 100644 index ea29dccd5..000000000 --- a/drivers/net/wireless/orinoco/fw.c +++ /dev/null @@ -1,382 +0,0 @@ -/* Firmware file reading and download helpers - * - * See copyright notice in main.c - */ -#include -#include -#include -#include -#include - -#include "hermes.h" -#include "hermes_dld.h" -#include "orinoco.h" - -#include "fw.h" - -/* End markers (for Symbol firmware only) */ -#define TEXT_END 0x1A /* End of text header */ - -struct fw_info { - char *pri_fw; - char *sta_fw; - char *ap_fw; - u32 pda_addr; - u16 pda_size; -}; - -static const struct fw_info orinoco_fw[] = { - { NULL, "/*(DEBLOBBED)*/", "/*(DEBLOBBED)*/", 0x00390000, 1000 }, - { NULL, "/*(DEBLOBBED)*/", "/*(DEBLOBBED)*/", 0, 1024 }, - { "/*(DEBLOBBED)*/", "/*(DEBLOBBED)*/", NULL, 0x00003100, 512 } -}; -/*(DEBLOBBED)*/ - -/* Structure used to access fields in FW - * Make sure LE decoding macros are used - */ -struct orinoco_fw_header { - char hdr_vers[6]; /* ASCII string for header version */ - __le16 headersize; /* Total length of header */ - __le32 entry_point; /* NIC entry point */ - __le32 blocks; /* Number of blocks to program */ - __le32 block_offset; /* Offset of block data from eof header */ - __le32 pdr_offset; /* Offset to PDR data from eof header */ - __le32 pri_offset; /* Offset to primary plug data */ - __le32 compat_offset; /* Offset to compatibility data*/ - char signature[0]; /* FW signature length headersize-20 */ -} __packed; - -/* Check the range of various header entries. Return a pointer to a - * description of the problem, or NULL if everything checks out. */ -static const char *validate_fw(const struct orinoco_fw_header *hdr, size_t len) -{ - u16 hdrsize; - - if (len < sizeof(*hdr)) - return "image too small"; - if (memcmp(hdr->hdr_vers, "HFW", 3) != 0) - return "format not recognised"; - - hdrsize = le16_to_cpu(hdr->headersize); - if (hdrsize > len) - return "bad headersize"; - if ((hdrsize + le32_to_cpu(hdr->block_offset)) > len) - return "bad block offset"; - if ((hdrsize + le32_to_cpu(hdr->pdr_offset)) > len) - return "bad PDR offset"; - if ((hdrsize + le32_to_cpu(hdr->pri_offset)) > len) - return "bad PRI offset"; - if ((hdrsize + le32_to_cpu(hdr->compat_offset)) > len) - return "bad compat offset"; - - /* TODO: consider adding a checksum or CRC to the firmware format */ - return NULL; -} - -#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP) -static inline const struct firmware * -orinoco_cached_fw_get(struct orinoco_private *priv, bool primary) -{ - if (primary) - return priv->cached_pri_fw; - else - return priv->cached_fw; -} -#else -#define orinoco_cached_fw_get(priv, primary) (NULL) -#endif - -/* Download either STA or AP firmware into the card. */ -static int -orinoco_dl_firmware(struct orinoco_private *priv, - const struct fw_info *fw, - int ap) -{ - /* Plug Data Area (PDA) */ - __le16 *pda; - - struct hermes *hw = &priv->hw; - const struct firmware *fw_entry; - const struct orinoco_fw_header *hdr; - const unsigned char *first_block; - const void *end; - const char *firmware; - const char *fw_err; - struct device *dev = priv->dev; - int err = 0; - - pda = kzalloc(fw->pda_size, GFP_KERNEL); - if (!pda) - return -ENOMEM; - - if (ap) - firmware = fw->ap_fw; - else - firmware = fw->sta_fw; - - dev_dbg(dev, "Attempting to download firmware %s\n", firmware); - - /* Read current plug data */ - err = hw->ops->read_pda(hw, pda, fw->pda_addr, fw->pda_size); - dev_dbg(dev, "Read PDA returned %d\n", err); - if (err) - goto free; - - if (!orinoco_cached_fw_get(priv, false)) { - err = reject_firmware(&fw_entry, firmware, priv->dev); - - if (err) { - dev_err(dev, "Cannot find firmware %s\n", firmware); - err = -ENOENT; - goto free; - } - } else - fw_entry = orinoco_cached_fw_get(priv, false); - - hdr = (const struct orinoco_fw_header *) fw_entry->data; - - fw_err = validate_fw(hdr, fw_entry->size); - if (fw_err) { - dev_warn(dev, "Invalid firmware image detected (%s). " - "Aborting download\n", fw_err); - err = -EINVAL; - goto abort; - } - - /* Enable aux port to allow programming */ - err = hw->ops->program_init(hw, le32_to_cpu(hdr->entry_point)); - dev_dbg(dev, "Program init returned %d\n", err); - if (err != 0) - goto abort; - - /* Program data */ - first_block = (fw_entry->data + - le16_to_cpu(hdr->headersize) + - le32_to_cpu(hdr->block_offset)); - end = fw_entry->data + fw_entry->size; - - err = hermes_program(hw, first_block, end); - dev_dbg(dev, "Program returned %d\n", err); - if (err != 0) - goto abort; - - /* Update production data */ - first_block = (fw_entry->data + - le16_to_cpu(hdr->headersize) + - le32_to_cpu(hdr->pdr_offset)); - - err = hermes_apply_pda_with_defaults(hw, first_block, end, pda, - &pda[fw->pda_size / sizeof(*pda)]); - dev_dbg(dev, "Apply PDA returned %d\n", err); - if (err) - goto abort; - - /* Tell card we've finished */ - err = hw->ops->program_end(hw); - dev_dbg(dev, "Program end returned %d\n", err); - if (err != 0) - goto abort; - - /* Check if we're running */ - dev_dbg(dev, "hermes_present returned %d\n", hermes_present(hw)); - -abort: - /* If we requested the firmware, release it. */ - if (!orinoco_cached_fw_get(priv, false)) - release_firmware(fw_entry); - -free: - kfree(pda); - return err; -} - -/* - * Process a firmware image - stop the card, load the firmware, reset - * the card and make sure it responds. For the secondary firmware take - * care of the PDA - read it and then write it on top of the firmware. - */ -static int -symbol_dl_image(struct orinoco_private *priv, const struct fw_info *fw, - const unsigned char *image, const void *end, - int secondary) -{ - struct hermes *hw = &priv->hw; - int ret = 0; - const unsigned char *ptr; - const unsigned char *first_block; - - /* Plug Data Area (PDA) */ - __le16 *pda = NULL; - - /* Binary block begins after the 0x1A marker */ - ptr = image; - while (*ptr++ != TEXT_END); - first_block = ptr; - - /* Read the PDA from EEPROM */ - if (secondary) { - pda = kzalloc(fw->pda_size, GFP_KERNEL); - if (!pda) - return -ENOMEM; - - ret = hw->ops->read_pda(hw, pda, fw->pda_addr, fw->pda_size); - if (ret) - goto free; - } - - /* Stop the firmware, so that it can be safely rewritten */ - if (priv->stop_fw) { - ret = priv->stop_fw(priv, 1); - if (ret) - goto free; - } - - /* Program the adapter with new firmware */ - ret = hermes_program(hw, first_block, end); - if (ret) - goto free; - - /* Write the PDA to the adapter */ - if (secondary) { - size_t len = hermes_blocks_length(first_block, end); - ptr = first_block + len; - ret = hermes_apply_pda(hw, ptr, end, pda, - &pda[fw->pda_size / sizeof(*pda)]); - kfree(pda); - if (ret) - return ret; - } - - /* Run the firmware */ - if (priv->stop_fw) { - ret = priv->stop_fw(priv, 0); - if (ret) - return ret; - } - - /* Reset hermes chip and make sure it responds */ - ret = hw->ops->init(hw); - - /* hermes_reset() should return 0 with the secondary firmware */ - if (secondary && ret != 0) - return -ENODEV; - - /* And this should work with any firmware */ - if (!hermes_present(hw)) - return -ENODEV; - - return 0; - -free: - kfree(pda); - return ret; -} - - -/* - * Download the firmware into the card, this also does a PCMCIA soft - * reset on the card, to make sure it's in a sane state. - */ -static int -symbol_dl_firmware(struct orinoco_private *priv, - const struct fw_info *fw) -{ - struct device *dev = priv->dev; - int ret; - const struct firmware *fw_entry; - - if (!orinoco_cached_fw_get(priv, true)) { - if (reject_firmware(&fw_entry, fw->pri_fw, priv->dev) != 0) { - dev_err(dev, "Cannot find firmware: %s\n", fw->pri_fw); - return -ENOENT; - } - } else - fw_entry = orinoco_cached_fw_get(priv, true); - - /* Load primary firmware */ - ret = symbol_dl_image(priv, fw, fw_entry->data, - fw_entry->data + fw_entry->size, 0); - - if (!orinoco_cached_fw_get(priv, true)) - release_firmware(fw_entry); - if (ret) { - dev_err(dev, "Primary firmware download failed\n"); - return ret; - } - - if (!orinoco_cached_fw_get(priv, false)) { - if (reject_firmware(&fw_entry, fw->sta_fw, priv->dev) != 0) { - dev_err(dev, "Cannot find firmware: %s\n", fw->sta_fw); - return -ENOENT; - } - } else - fw_entry = orinoco_cached_fw_get(priv, false); - - /* Load secondary firmware */ - ret = symbol_dl_image(priv, fw, fw_entry->data, - fw_entry->data + fw_entry->size, 1); - if (!orinoco_cached_fw_get(priv, false)) - release_firmware(fw_entry); - if (ret) - dev_err(dev, "Secondary firmware download failed\n"); - - return ret; -} - -int orinoco_download(struct orinoco_private *priv) -{ - int err = 0; - /* Reload firmware */ - switch (priv->firmware_type) { - case FIRMWARE_TYPE_AGERE: - /* case FIRMWARE_TYPE_INTERSIL: */ - err = orinoco_dl_firmware(priv, - &orinoco_fw[priv->firmware_type], 0); - break; - - case FIRMWARE_TYPE_SYMBOL: - err = symbol_dl_firmware(priv, - &orinoco_fw[priv->firmware_type]); - break; - case FIRMWARE_TYPE_INTERSIL: - break; - } - /* TODO: if we fail we probably need to reinitialise - * the driver */ - - return err; -} - -#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP) -void orinoco_cache_fw(struct orinoco_private *priv, int ap) -{ - const struct firmware *fw_entry = NULL; - const char *pri_fw; - const char *fw; - - pri_fw = orinoco_fw[priv->firmware_type].pri_fw; - if (ap) - fw = orinoco_fw[priv->firmware_type].ap_fw; - else - fw = orinoco_fw[priv->firmware_type].sta_fw; - - if (pri_fw) { - if (reject_firmware(&fw_entry, pri_fw, priv->dev) == 0) - priv->cached_pri_fw = fw_entry; - } - - if (fw) { - if (reject_firmware(&fw_entry, fw, priv->dev) == 0) - priv->cached_fw = fw_entry; - } -} - -void orinoco_uncache_fw(struct orinoco_private *priv) -{ - release_firmware(priv->cached_pri_fw); - release_firmware(priv->cached_fw); - priv->cached_pri_fw = NULL; - priv->cached_fw = NULL; -} -#endif -- cgit v1.2.3-54-g00ecf