package/kernel/mac80211/patches/327-v4.17-0008-brcmfmac-introduce-brcmf_fw_alloc_request-function.patch

   1 From 2baa3aaee27f137b8db9a9224d0fe9b281d28e34 Mon Sep 17 00:00:00 2001
   2 From: Arend Van Spriel <arend.vanspriel@broadcom.com>
   3 Date: Thu, 22 Mar 2018 21:28:27 +0100
   4 Subject: [PATCH] brcmfmac: introduce brcmf_fw_alloc_request() function
   5
   6 The function brcmf_fw_alloc_request() takes a list of required files
   7 and allocated the struct brcmf_fw_request instance accordingly. The
   8 request can be modified by the caller before being passed to the
   9 brcmf_fw_request_firmwares() function.
  10
  11 Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
  12 Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
  13 Reviewed-by: Franky Lin <franky.lin@broadcom.com>
  14 Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
  15 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  16 ---
  17  .../broadcom/brcm80211/brcmfmac/firmware.c         | 58 ++++++++++++++++++++++
  18  .../broadcom/brcm80211/brcmfmac/firmware.h         | 11 ++++
  19  .../wireless/broadcom/brcm80211/brcmfmac/pcie.c    | 58 ++++++++++++----------
  20  .../wireless/broadcom/brcm80211/brcmfmac/sdio.c    | 38 ++++++++------
  21  .../net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 42 +++++++++-------
  22  5 files changed, 147 insertions(+), 60 deletions(-)
  23
  24 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
  25 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
  26 @@ -688,3 +688,61 @@ int brcmf_fw_map_chip_to_name(u32 chip,
  27         return 0;
  28  }
  29
  30 +struct brcmf_fw_request *
  31 +brcmf_fw_alloc_request(u32 chip, u32 chiprev,
  32 +                      struct brcmf_firmware_mapping mapping_table[],
  33 +                      u32 table_size, struct brcmf_fw_name *fwnames,
  34 +                      u32 n_fwnames)
  35 +{
  36 +       struct brcmf_fw_request *fwreq;
  37 +       char chipname[12];
  38 +       const char *mp_path;
  39 +       u32 i, j;
  40 +       char end;
  41 +       size_t reqsz;
  42 +
  43 +       for (i = 0; i < table_size; i++) {
  44 +               if (mapping_table[i].chipid == chip &&
  45 +                   mapping_table[i].revmask & BIT(chiprev))
  46 +                       break;
  47 +       }
  48 +
  49 +       if (i == table_size) {
  50 +               brcmf_err("Unknown chipid %d [%d]\n", chip, chiprev);
  51 +               return NULL;
  52 +       }
  53 +
  54 +       reqsz = sizeof(*fwreq) + n_fwnames * sizeof(struct brcmf_fw_item);
  55 +       fwreq = kzalloc(reqsz, GFP_KERNEL);
  56 +       if (!fwreq)
  57 +               return NULL;
  58 +
  59 +       brcmf_chip_name(chip, chiprev, chipname, sizeof(chipname));
  60 +
  61 +       brcmf_info("using %s for chip %s\n",
  62 +                  mapping_table[i].fw_base, chipname);
  63 +
  64 +       mp_path = brcmf_mp_global.firmware_path;
  65 +       end = mp_path[strlen(mp_path) - 1];
  66 +       fwreq->n_items = n_fwnames;
  67 +
  68 +       for (j = 0; j < n_fwnames; j++) {
  69 +               fwreq->items[j].path = fwnames[j].path;
  70 +               /* check if firmware path is provided by module parameter */
  71 +               if (brcmf_mp_global.firmware_path[0] != '\0') {
  72 +                       strlcpy(fwnames[j].path, mp_path,
  73 +                               BRCMF_FW_NAME_LEN);
  74 +
  75 +                       if (end != '/') {
  76 +                               strlcat(fwnames[j].path, "/",
  77 +                                       BRCMF_FW_NAME_LEN);
  78 +                       }
  79 +               }
  80 +               brcmf_fw_get_full_name(fwnames[j].path,
  81 +                                      mapping_table[i].fw_base,
  82 +                                      fwnames[j].extension);
  83 +               fwreq->items[j].path = fwnames[j].path;
  84 +       }
  85 +
  86 +       return fwreq;
  87 +}
  88 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
  89 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
  90 @@ -77,6 +77,17 @@ struct brcmf_fw_request {
  91         struct brcmf_fw_item items[0];
  92  };
  93
  94 +struct brcmf_fw_name {
  95 +       const char *extension;
  96 +       char *path;
  97 +};
  98 +
  99 +struct brcmf_fw_request *
 100 +brcmf_fw_alloc_request(u32 chip, u32 chiprev,
 101 +                      struct brcmf_firmware_mapping mapping_table[],
 102 +                      u32 table_size, struct brcmf_fw_name *fwnames,
 103 +                      u32 n_fwnames);
 104 +
 105  /*
 106   * Request firmware(s) asynchronously. When the asynchronous request
 107   * fails it will not use the callback, but call device_release_driver()
 108 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
 109 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
 110 @@ -1735,6 +1735,31 @@ fail:
 111         device_release_driver(dev);
 112  }
 113
 114 +static struct brcmf_fw_request *
 115 +brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
 116 +{
 117 +       struct brcmf_fw_request *fwreq;
 118 +       struct brcmf_fw_name fwnames[] = {
 119 +               { ".bin", devinfo->fw_name },
 120 +               { ".txt", devinfo->nvram_name },
 121 +       };
 122 +
 123 +       fwreq = brcmf_fw_alloc_request(devinfo->ci->chip, devinfo->ci->chiprev,
 124 +                                      brcmf_pcie_fwnames,
 125 +                                      ARRAY_SIZE(brcmf_pcie_fwnames),
 126 +                                      fwnames, ARRAY_SIZE(fwnames));
 127 +       if (!fwreq)
 128 +               return NULL;
 129 +
 130 +       fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 131 +       fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
 132 +       fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
 133 +       fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus);
 134 +       fwreq->bus_nr = devinfo->pdev->bus->number;
 135 +
 136 +       return fwreq;
 137 +}
 138 +
 139  static int
 140  brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 141  {
 142 @@ -1743,13 +1768,8 @@ brcmf_pcie_probe(struct pci_dev *pdev, c
 143         struct brcmf_pciedev_info *devinfo;
 144         struct brcmf_pciedev *pcie_bus_dev;
 145         struct brcmf_bus *bus;
 146 -       u16 domain_nr;
 147 -       u16 bus_nr;
 148
 149 -       domain_nr = pci_domain_nr(pdev->bus) + 1;
 150 -       bus_nr = pdev->bus->number;
 151 -       brcmf_dbg(PCIE, "Enter %x:%x (%d/%d)\n", pdev->vendor, pdev->device,
 152 -                 domain_nr, bus_nr);
 153 +       brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device);
 154
 155         ret = -ENOMEM;
 156         devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL);
 157 @@ -1803,33 +1823,19 @@ brcmf_pcie_probe(struct pci_dev *pdev, c
 158         bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot);
 159         dev_set_drvdata(&pdev->dev, bus);
 160
 161 -       ret = brcmf_fw_map_chip_to_name(devinfo->ci->chip, devinfo->ci->chiprev,
 162 -                                       brcmf_pcie_fwnames,
 163 -                                       ARRAY_SIZE(brcmf_pcie_fwnames),
 164 -                                       devinfo->fw_name, devinfo->nvram_name);
 165 -       if (ret)
 166 -               goto fail_bus;
 167 -
 168 -       fwreq = kzalloc(sizeof(*fwreq) + 2 * sizeof(struct brcmf_fw_item),
 169 -                       GFP_KERNEL);
 170 +       fwreq = brcmf_pcie_prepare_fw_request(devinfo);
 171         if (!fwreq) {
 172                 ret = -ENOMEM;
 173                 goto fail_bus;
 174         }
 175
 176 -       fwreq->items[BRCMF_PCIE_FW_CODE].path = devinfo->fw_name;
 177 -       fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 178 -       fwreq->items[BRCMF_PCIE_FW_NVRAM].path = devinfo->nvram_name;
 179 -       fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
 180 -       fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
 181 -       fwreq->n_items = 2;
 182 -       fwreq->domain_nr = domain_nr;
 183 -       fwreq->bus_nr = bus_nr;
 184         ret = brcmf_fw_get_firmwares(bus->dev, fwreq, brcmf_pcie_setup);
 185 -       if (ret == 0)
 186 -               return 0;
 187 +       if (ret < 0) {
 188 +               kfree(fwreq);
 189 +               goto fail_bus;
 190 +       }
 191 +       return 0;
 192
 193 -       kfree(fwreq);
 194  fail_bus:
 195         kfree(bus->msgbuf);
 196         kfree(bus);
 197 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
 198 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
 199 @@ -4155,6 +4155,28 @@ fail:
 200         device_release_driver(dev);
 201  }
 202
 203 +static struct brcmf_fw_request *
 204 +brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
 205 +{
 206 +       struct brcmf_fw_request *fwreq;
 207 +       struct brcmf_fw_name fwnames[] = {
 208 +               { ".bin", bus->sdiodev->fw_name },
 209 +               { ".txt", bus->sdiodev->nvram_name },
 210 +       };
 211 +
 212 +       fwreq = brcmf_fw_alloc_request(bus->ci->chip, bus->ci->chiprev,
 213 +                                      brcmf_sdio_fwnames,
 214 +                                      ARRAY_SIZE(brcmf_sdio_fwnames),
 215 +                                      fwnames, ARRAY_SIZE(fwnames));
 216 +       if (!fwreq)
 217 +               return NULL;
 218 +
 219 +       fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 220 +       fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
 221 +
 222 +       return fwreq;
 223 +}
 224 +
 225  struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
 226  {
 227         int ret;
 228 @@ -4244,26 +4266,12 @@ struct brcmf_sdio *brcmf_sdio_probe(stru
 229
 230         brcmf_dbg(INFO, "completed!!\n");
 231
 232 -       ret = brcmf_fw_map_chip_to_name(bus->ci->chip, bus->ci->chiprev,
 233 -                                       brcmf_sdio_fwnames,
 234 -                                       ARRAY_SIZE(brcmf_sdio_fwnames),
 235 -                                       sdiodev->fw_name, sdiodev->nvram_name);
 236 -       if (ret)
 237 -               goto fail;
 238 -
 239 -       fwreq = kzalloc(sizeof(fwreq) + 2 * sizeof(struct brcmf_fw_item),
 240 -                       GFP_KERNEL);
 241 +       fwreq = brcmf_sdio_prepare_fw_request(bus);
 242         if (!fwreq) {
 243                 ret = -ENOMEM;
 244                 goto fail;
 245         }
 246
 247 -       fwreq->items[BRCMF_SDIO_FW_CODE].path = sdiodev->fw_name;
 248 -       fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 249 -       fwreq->items[BRCMF_SDIO_FW_NVRAM].path = sdiodev->nvram_name;
 250 -       fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
 251 -       fwreq->n_items = 2;
 252 -
 253         ret = brcmf_fw_get_firmwares(sdiodev->dev, fwreq,
 254                                      brcmf_sdio_firmware_callback);
 255         if (ret != 0) {
 256 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
 257 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
 258 @@ -1200,6 +1200,27 @@ error:
 259         device_release_driver(dev);
 260  }
 261
 262 +static struct brcmf_fw_request *
 263 +brcmf_usb_prepare_fw_request(struct brcmf_usbdev_info *devinfo)
 264 +{
 265 +       struct brcmf_fw_request *fwreq;
 266 +       struct brcmf_fw_name fwnames[] = {
 267 +               { ".bin", devinfo->fw_name },
 268 +       };
 269 +
 270 +       fwreq = brcmf_fw_alloc_request(devinfo->bus_pub.devid,
 271 +                                      devinfo->bus_pub.chiprev,
 272 +                                      brcmf_usb_fwnames,
 273 +                                      ARRAY_SIZE(brcmf_usb_fwnames),
 274 +                                      fwnames, ARRAY_SIZE(fwnames));
 275 +       if (!fwreq)
 276 +               return NULL;
 277 +
 278 +       fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 279 +
 280 +       return fwreq;
 281 +}
 282 +
 283  static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
 284  {
 285         struct brcmf_bus *bus = NULL;
 286 @@ -1249,24 +1270,12 @@ static int brcmf_usb_probe_cb(struct brc
 287         bus->chip = bus_pub->devid;
 288         bus->chiprev = bus_pub->chiprev;
 289
 290 -       ret = brcmf_fw_map_chip_to_name(bus_pub->devid, bus_pub->chiprev,
 291 -                                       brcmf_usb_fwnames,
 292 -                                       ARRAY_SIZE(brcmf_usb_fwnames),
 293 -                                       devinfo->fw_name, NULL);
 294 -       if (ret)
 295 -               goto fail;
 296 -
 297 -       fwreq = kzalloc(sizeof(*fwreq) + sizeof(struct brcmf_fw_item),
 298 -                       GFP_KERNEL);
 299 +       fwreq = brcmf_usb_prepare_fw_request(devinfo);
 300         if (!fwreq) {
 301                 ret = -ENOMEM;
 302                 goto fail;
 303         }
 304
 305 -       fwreq->items[BRCMF_USB_FW_CODE].path = devinfo->fw_name;
 306 -       fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 307 -       fwreq->n_items = 1;
 308 -
 309         /* request firmware here */
 310         ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2);
 311         if (ret) {
 312 @@ -1469,15 +1478,10 @@ static int brcmf_usb_reset_resume(struct
 313
 314         brcmf_dbg(USB, "Enter\n");
 315
 316 -       fwreq = kzalloc(sizeof(*fwreq) + sizeof(struct brcmf_fw_item),
 317 -                       GFP_KERNEL);
 318 +       fwreq = brcmf_usb_prepare_fw_request(devinfo);
 319         if (!fwreq)
 320                 return -ENOMEM;
 321
 322 -       fwreq->items[BRCMF_USB_FW_CODE].path = devinfo->fw_name;
 323 -       fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
 324 -       fwreq->n_items = 1;
 325 -
 326         ret = brcmf_fw_get_firmwares(&usb->dev, fwreq, brcmf_usb_probe_phase2);
 327         if (ret < 0)
 328                 kfree(fwreq);