diff options
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 61 |
1 files changed, 48 insertions, 13 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 2e563662c9a2..88d2c15d3fbe 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -1778,9 +1778,20 @@ static int b43_upload_microcode(struct b43_wldev *dev) const __be32 *data; unsigned int i, len; u16 fwrev, fwpatch, fwdate, fwtime; - u32 tmp; + u32 tmp, macctl; int err = 0; + /* Jump the microcode PSM to offset 0 */ + macctl = b43_read32(dev, B43_MMIO_MACCTL); + B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); + macctl |= B43_MACCTL_PSM_JMP0; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + /* Zero out all microcode PSM registers and shared memory. */ + for (i = 0; i < 64; i++) + b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); + for (i = 0; i < 4096; i += 2) + b43_shm_write16(dev, B43_SHM_SHARED, i, 0); + /* Upload Microcode. */ data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); @@ -1805,9 +1816,12 @@ static int b43_upload_microcode(struct b43_wldev *dev) } b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); - b43_write32(dev, B43_MMIO_MACCTL, - B43_MACCTL_PSM_RUN | - B43_MACCTL_IHR_ENABLED | B43_MACCTL_INFRA); + + /* Start the microcode PSM */ + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_PSM_JMP0; + macctl |= B43_MACCTL_PSM_RUN; + b43_write32(dev, B43_MMIO_MACCTL, macctl); /* Wait for the microcode to load and respond */ i = 0; @@ -1816,13 +1830,17 @@ static int b43_upload_microcode(struct b43_wldev *dev) if (tmp == B43_IRQ_MAC_SUSPENDED) break; i++; - if (i >= 50) { + if (i >= 20) { b43err(dev->wl, "Microcode not responding\n"); b43_print_fw_helptext(dev->wl, 1); err = -ENODEV; - goto out; + goto error; + } + msleep_interruptible(50); + if (signal_pending(current)) { + err = -EINTR; + goto error; } - udelay(10); } b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ @@ -1837,9 +1855,8 @@ static int b43_upload_microcode(struct b43_wldev *dev) "binary drivers older than version 4.x is unsupported. " "You must upgrade your firmware files.\n"); b43_print_fw_helptext(dev->wl, 1); - b43_write32(dev, B43_MMIO_MACCTL, 0); err = -EOPNOTSUPP; - goto out; + goto error; } b43dbg(dev->wl, "Loading firmware version %u.%u " "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", @@ -1856,7 +1873,14 @@ static int b43_upload_microcode(struct b43_wldev *dev) b43_print_fw_helptext(dev->wl, 0); } -out: + return 0; + +error: + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_PSM_RUN; + macctl |= B43_MACCTL_PSM_JMP0; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + return err; } @@ -2228,11 +2252,15 @@ static int b43_chip_init(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; int err, tmp; - u32 value32; + u32 value32, macctl; u16 value16; - b43_write32(dev, B43_MMIO_MACCTL, - B43_MACCTL_PSM_JMP0 | B43_MACCTL_IHR_ENABLED); + /* Initialize the MAC control */ + macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; + if (dev->phy.gmode) + macctl |= B43_MACCTL_GMODE; + macctl |= B43_MACCTL_INFRA; + b43_write32(dev, B43_MMIO_MACCTL, macctl); err = b43_request_firmware(dev); if (err) @@ -3376,12 +3404,19 @@ static void b43_set_retry_limits(struct b43_wldev *dev, static void b43_wireless_core_exit(struct b43_wldev *dev) { struct b43_phy *phy = &dev->phy; + u32 macctl; B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED); if (b43_status(dev) != B43_STAT_INITIALIZED) return; b43_set_status(dev, B43_STAT_UNINIT); + /* Stop the microcode PSM. */ + macctl = b43_read32(dev, B43_MMIO_MACCTL); + macctl &= ~B43_MACCTL_PSM_RUN; + macctl |= B43_MACCTL_PSM_JMP0; + b43_write32(dev, B43_MMIO_MACCTL, macctl); + b43_leds_exit(dev); b43_rng_exit(dev->wl); b43_dma_free(dev); |