package/kernel/mac80211/patches/860-brcmfmac-use-bcm47xx-platform-NVRAM-as-fallback.patch

   1 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   2 Date: Mon, 8 Jun 2015 16:59:31 +0200
   3 Subject: [PATCH] brcmfmac: use bcm47xx platform NVRAM as fallback
   4 MIME-Version: 1.0
   5 Content-Type: text/plain; charset=UTF-8
   6 Content-Transfer-Encoding: 8bit
   7
   8 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
   9 ---
  10
  11 --- a/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
  12 +++ b/drivers/net/wireless/brcm80211/brcmfmac/firmware.c
  13 @@ -19,6 +19,9 @@
  14  #include <linux/device.h>
  15  #include <linux/firmware.h>
  16  #include <linux/module.h>
  17 +#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
  18 +#include <linux/bcm47xx_nvram.h>
  19 +#endif
  20
  21  #include "debug.h"
  22  #include "firmware.h"
  23 @@ -424,17 +427,42 @@ struct brcmf_fw {
  24  static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx)
  25  {
  26         struct brcmf_fw *fwctx = ctx;
  27 +#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
  28 +       const u8 *bcm47xx_nvram = NULL;
  29 +       size_t bcm47xx_nvram_len;
  30 +#endif
  31 +       const u8 *data = NULL;
  32 +       size_t data_len;
  33         u32 nvram_length = 0;
  34         void *nvram = NULL;
  35
  36         brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
  37 -       if (!fw && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
  38 +       if (fw) {
  39 +               data = fw->data;
  40 +               data_len = fw->size;
  41 +       }
  42 +#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
  43 +       else {
  44 +               bcm47xx_nvram = bcm47xx_nvram_get_contents(&bcm47xx_nvram_len);
  45 +               if (bcm47xx_nvram) {
  46 +                       data = bcm47xx_nvram;
  47 +                       data_len = bcm47xx_nvram_len;
  48 +                       brcmf_err("Found platform NVRAM (%zu B)\n", data_len);
  49 +               }
  50 +       }
  51 +#endif
  52 +       if (!data && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
  53                 goto fail;
  54
  55 -       if (fw) {
  56 -               nvram = brcmf_fw_nvram_strip(fw->data, fw->size, &nvram_length,
  57 +       if (data) {
  58 +               nvram = brcmf_fw_nvram_strip(data, data_len, &nvram_length,
  59                                              fwctx->domain_nr, fwctx->bus_nr);
  60 -               release_firmware(fw);
  61 +               if (fw)
  62 +                       release_firmware(fw);
  63 +#if IS_ENABLED(CONFIG_BCM47XX_NVRAM)
  64 +               if (bcm47xx_nvram)
  65 +                       bcm47xx_nvram_release_contents(bcm47xx_nvram);
  66 +#endif
  67                 if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL))
  68                         goto fail;
  69         }
  70 --- a/drivers/net/wireless/brcm80211/brcmfmac/debug.h
  71 +++ b/drivers/net/wireless/brcm80211/brcmfmac/debug.h
  72 @@ -17,6 +17,8 @@
  73  #ifndef BRCMFMAC_DEBUG_H
  74  #define BRCMFMAC_DEBUG_H
  75
  76 +#include <linux/net.h>
  77 +
  78  /* message levels */
  79  #define BRCMF_TRACE_VAL                0x00000002
  80  #define BRCMF_INFO_VAL         0x00000004