diff options
Diffstat (limited to 'drivers/net/wireless/hostap/hostap_download.c')
| -rw-r--r-- | drivers/net/wireless/hostap/hostap_download.c | 766 |
1 files changed, 766 insertions, 0 deletions
diff --git a/drivers/net/wireless/hostap/hostap_download.c b/drivers/net/wireless/hostap/hostap_download.c new file mode 100644 index 000000000000..ab26b52b3e76 --- /dev/null +++ b/drivers/net/wireless/hostap/hostap_download.c @@ -0,0 +1,766 @@ +static int prism2_enable_aux_port(struct net_device *dev, int enable) +{ + u16 val, reg; + int i, tries; + unsigned long flags; + struct hostap_interface *iface; + local_info_t *local; + + iface = netdev_priv(dev); + local = iface->local; + + if (local->no_pri) { + if (enable) { + PDEBUG(DEBUG_EXTRA2, "%s: no PRI f/w - assuming Aux " + "port is already enabled\n", dev->name); + } + return 0; + } + + spin_lock_irqsave(&local->cmdlock, flags); + + /* wait until busy bit is clear */ + tries = HFA384X_CMD_BUSY_TIMEOUT; + while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) { + tries--; + udelay(1); + } + if (tries == 0) { + reg = HFA384X_INW(HFA384X_CMD_OFF); + spin_unlock_irqrestore(&local->cmdlock, flags); + printk("%s: prism2_enable_aux_port - timeout - reg=0x%04x\n", + dev->name, reg); + return -ETIMEDOUT; + } + + val = HFA384X_INW(HFA384X_CONTROL_OFF); + + if (enable) { + HFA384X_OUTW(HFA384X_AUX_MAGIC0, HFA384X_PARAM0_OFF); + HFA384X_OUTW(HFA384X_AUX_MAGIC1, HFA384X_PARAM1_OFF); + HFA384X_OUTW(HFA384X_AUX_MAGIC2, HFA384X_PARAM2_OFF); + + if ((val & HFA384X_AUX_PORT_MASK) != HFA384X_AUX_PORT_DISABLED) + printk("prism2_enable_aux_port: was not disabled!?\n"); + val &= ~HFA384X_AUX_PORT_MASK; + val |= HFA384X_AUX_PORT_ENABLE; + } else { + HFA384X_OUTW(0, HFA384X_PARAM0_OFF); + HFA384X_OUTW(0, HFA384X_PARAM1_OFF); + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + + if ((val & HFA384X_AUX_PORT_MASK) != HFA384X_AUX_PORT_ENABLED) + printk("prism2_enable_aux_port: was not enabled!?\n"); + val &= ~HFA384X_AUX_PORT_MASK; + val |= HFA384X_AUX_PORT_DISABLE; + } + HFA384X_OUTW(val, HFA384X_CONTROL_OFF); + + udelay(5); + + i = 10000; + while (i > 0) { + val = HFA384X_INW(HFA384X_CONTROL_OFF); + val &= HFA384X_AUX_PORT_MASK; + + if ((enable && val == HFA384X_AUX_PORT_ENABLED) || + (!enable && val == HFA384X_AUX_PORT_DISABLED)) + break; + + udelay(10); + i--; + } + + spin_unlock_irqrestore(&local->cmdlock, flags); + + if (i == 0) { + printk("prism2_enable_aux_port(%d) timed out\n", + enable); + return -ETIMEDOUT; + } + + return 0; +} + + +static int hfa384x_from_aux(struct net_device *dev, unsigned int addr, int len, + void *buf) +{ + u16 page, offset; + if (addr & 1 || len & 1) + return -1; + + page = addr >> 7; + offset = addr & 0x7f; + + HFA384X_OUTW(page, HFA384X_AUXPAGE_OFF); + HFA384X_OUTW(offset, HFA384X_AUXOFFSET_OFF); + + udelay(5); + +#ifdef PRISM2_PCI + { + u16 *pos = (u16 *) buf; + while (len > 0) { + *pos++ = HFA384X_INW_DATA(HFA384X_AUXDATA_OFF); + len -= 2; + } + } +#else /* PRISM2_PCI */ + HFA384X_INSW(HFA384X_AUXDATA_OFF, buf, len / 2); +#endif /* PRISM2_PCI */ + + return 0; +} + + +static int hfa384x_to_aux(struct net_device *dev, unsigned int addr, int len, + void *buf) +{ + u16 page, offset; + if (addr & 1 || len & 1) + return -1; + + page = addr >> 7; + offset = addr & 0x7f; + + HFA384X_OUTW(page, HFA384X_AUXPAGE_OFF); + HFA384X_OUTW(offset, HFA384X_AUXOFFSET_OFF); + + udelay(5); + +#ifdef PRISM2_PCI + { + u16 *pos = (u16 *) buf; + while (len > 0) { + HFA384X_OUTW_DATA(*pos++, HFA384X_AUXDATA_OFF); + len -= 2; + } + } +#else /* PRISM2_PCI */ + HFA384X_OUTSW(HFA384X_AUXDATA_OFF, buf, len / 2); +#endif /* PRISM2_PCI */ + + return 0; +} + + +static int prism2_pda_ok(u8 *buf) +{ + u16 *pda = (u16 *) buf; + int pos; + u16 len, pdr; + + if (buf[0] == 0xff && buf[1] == 0x00 && buf[2] == 0xff && + buf[3] == 0x00) + return 0; + + pos = 0; + while (pos + 1 < PRISM2_PDA_SIZE / 2) { + len = le16_to_cpu(pda[pos]); + pdr = le16_to_cpu(pda[pos + 1]); + if (len == 0 || pos + len > PRISM2_PDA_SIZE / 2) + return 0; + + if (pdr == 0x0000 && len == 2) { + /* PDA end found */ + return 1; + } + + pos += len + 1; + } + + return 0; +} + + +static int prism2_download_aux_dump(struct net_device *dev, + unsigned int addr, int len, u8 *buf) +{ + int res; + + prism2_enable_aux_port(dev, 1); + res = hfa384x_from_aux(dev, addr, len, buf); + prism2_enable_aux_port(dev, 0); + if (res) + return -1; + + return 0; +} + + +static u8 * prism2_read_pda(struct net_device *dev) +{ + u8 *buf; + int res, i, found = 0; +#define NUM_PDA_ADDRS 4 + unsigned int pda_addr[NUM_PDA_ADDRS] = { + 0x7f0000 /* others than HFA3841 */, + 0x3f0000 /* HFA3841 */, + 0x390000 /* apparently used in older cards */, + 0x7f0002 /* Intel PRO/Wireless 2011B (PCI) */, + }; + + buf = (u8 *) kmalloc(PRISM2_PDA_SIZE, GFP_KERNEL); + if (buf == NULL) + return NULL; + + /* Note: wlan card should be in initial state (just after init cmd) + * and no other operations should be performed concurrently. */ + + prism2_enable_aux_port(dev, 1); + + for (i = 0; i < NUM_PDA_ADDRS; i++) { + PDEBUG(DEBUG_EXTRA2, "%s: trying to read PDA from 0x%08x", + dev->name, pda_addr[i]); + res = hfa384x_from_aux(dev, pda_addr[i], PRISM2_PDA_SIZE, buf); + if (res) + continue; + if (res == 0 && prism2_pda_ok(buf)) { + PDEBUG2(DEBUG_EXTRA2, ": OK\n"); + found = 1; + break; + } else { + PDEBUG2(DEBUG_EXTRA2, ": failed\n"); + } + } + + prism2_enable_aux_port(dev, 0); + + if (!found) { + printk(KERN_DEBUG "%s: valid PDA not found\n", dev->name); + kfree(buf); + buf = NULL; + } + + return buf; +} + + +static int prism2_download_volatile(local_info_t *local, + struct prism2_download_data *param) +{ + struct net_device *dev = local->dev; + int ret = 0, i; + u16 param0, param1; + + if (local->hw_downloading) { + printk(KERN_WARNING "%s: Already downloading - aborting new " + "request\n", dev->name); + return -1; + } + + local->hw_downloading = 1; + if (local->pri_only) { + hfa384x_disable_interrupts(dev); + } else { + prism2_hw_shutdown(dev, 0); + + if (prism2_hw_init(dev, 0)) { + printk(KERN_WARNING "%s: Could not initialize card for" + " download\n", dev->name); + ret = -1; + goto out; + } + } + + if (prism2_enable_aux_port(dev, 1)) { + printk(KERN_WARNING "%s: Could not enable AUX port\n", + dev->name); + ret = -1; + goto out; + } + + param0 = param->start_addr & 0xffff; + param1 = param->start_addr >> 16; + + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + HFA384X_OUTW(param1, HFA384X_PARAM1_OFF); + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_ENABLE_VOLATILE << 8), + param0)) { + printk(KERN_WARNING "%s: Download command execution failed\n", + dev->name); + ret = -1; + goto out; + } + + for (i = 0; i < param->num_areas; i++) { + PDEBUG(DEBUG_EXTRA2, "%s: Writing %d bytes at 0x%08x\n", + dev->name, param->data[i].len, param->data[i].addr); + if (hfa384x_to_aux(dev, param->data[i].addr, + param->data[i].len, param->data[i].data)) { + printk(KERN_WARNING "%s: RAM download at 0x%08x " + "(len=%d) failed\n", dev->name, + param->data[i].addr, param->data[i].len); + ret = -1; + goto out; + } + } + + HFA384X_OUTW(param1, HFA384X_PARAM1_OFF); + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + if (hfa384x_cmd_no_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_DISABLE << 8), param0)) { + printk(KERN_WARNING "%s: Download command execution failed\n", + dev->name); + ret = -1; + goto out; + } + /* ProgMode disable causes the hardware to restart itself from the + * given starting address. Give hw some time and ACK command just in + * case restart did not happen. */ + mdelay(5); + HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF); + + if (prism2_enable_aux_port(dev, 0)) { + printk(KERN_DEBUG "%s: Disabling AUX port failed\n", + dev->name); + /* continue anyway.. restart should have taken care of this */ + } + + mdelay(5); + local->hw_downloading = 0; + if (prism2_hw_config(dev, 2)) { + printk(KERN_WARNING "%s: Card configuration after RAM " + "download failed\n", dev->name); + ret = -1; + goto out; + } + + out: + local->hw_downloading = 0; + return ret; +} + + +static int prism2_enable_genesis(local_info_t *local, int hcr) +{ + struct net_device *dev = local->dev; + u8 initseq[4] = { 0x00, 0xe1, 0xa1, 0xff }; + u8 readbuf[4]; + + printk(KERN_DEBUG "%s: test Genesis mode with HCR 0x%02x\n", + dev->name, hcr); + local->func->cor_sreset(local); + hfa384x_to_aux(dev, 0x7e0038, sizeof(initseq), initseq); + local->func->genesis_reset(local, hcr); + + /* Readback test */ + hfa384x_from_aux(dev, 0x7e0038, sizeof(readbuf), readbuf); + hfa384x_to_aux(dev, 0x7e0038, sizeof(initseq), initseq); + hfa384x_from_aux(dev, 0x7e0038, sizeof(readbuf), readbuf); + + if (memcmp(initseq, readbuf, sizeof(initseq)) == 0) { + printk(KERN_DEBUG "Readback test succeeded, HCR 0x%02x\n", + hcr); + return 0; + } else { + printk(KERN_DEBUG "Readback test failed, HCR 0x%02x " + "write %02x %02x %02x %02x read %02x %02x %02x %02x\n", + hcr, initseq[0], initseq[1], initseq[2], initseq[3], + readbuf[0], readbuf[1], readbuf[2], readbuf[3]); + return 1; + } +} + + +static int prism2_get_ram_size(local_info_t *local) +{ + int ret; + + /* Try to enable genesis mode; 0x1F for x8 SRAM or 0x0F for x16 SRAM */ + if (prism2_enable_genesis(local, 0x1f) == 0) + ret = 8; + else if (prism2_enable_genesis(local, 0x0f) == 0) + ret = 16; + else + ret = -1; + + /* Disable genesis mode */ + local->func->genesis_reset(local, ret == 16 ? 0x07 : 0x17); + + return ret; +} + + +static int prism2_download_genesis(local_info_t *local, + struct prism2_download_data *param) +{ + struct net_device *dev = local->dev; + int ram16 = 0, i; + int ret = 0; + + if (local->hw_downloading) { + printk(KERN_WARNING "%s: Already downloading - aborting new " + "request\n", dev->name); + return -EBUSY; + } + + if (!local->func->genesis_reset || !local->func->cor_sreset) { + printk(KERN_INFO "%s: Genesis mode downloading not supported " + "with this hwmodel\n", dev->name); + return -EOPNOTSUPP; + } + + local->hw_downloading = 1; + + if (prism2_enable_aux_port(dev, 1)) { + printk(KERN_DEBUG "%s: failed to enable AUX port\n", + dev->name); + ret = -EIO; + goto out; + } + + if (local->sram_type == -1) { + /* 0x1F for x8 SRAM or 0x0F for x16 SRAM */ + if (prism2_enable_genesis(local, 0x1f) == 0) { + ram16 = 0; + PDEBUG(DEBUG_EXTRA2, "%s: Genesis mode OK using x8 " + "SRAM\n", dev->name); + } else if (prism2_enable_genesis(local, 0x0f) == 0) { + ram16 = 1; + PDEBUG(DEBUG_EXTRA2, "%s: Genesis mode OK using x16 " + "SRAM\n", dev->name); + } else { + printk(KERN_DEBUG "%s: Could not initiate genesis " + "mode\n", dev->name); + ret = -EIO; + goto out; + } + } else { + if (prism2_enable_genesis(local, local->sram_type == 8 ? + 0x1f : 0x0f)) { + printk(KERN_DEBUG "%s: Failed to set Genesis " + "mode (sram_type=%d)\n", dev->name, + local->sram_type); + ret = -EIO; + goto out; + } + ram16 = local->sram_type != 8; + } + + for (i = 0; i < param->num_areas; i++) { + PDEBUG(DEBUG_EXTRA2, "%s: Writing %d bytes at 0x%08x\n", + dev->name, param->data[i].len, param->data[i].addr); + if (hfa384x_to_aux(dev, param->data[i].addr, + param->data[i].len, param->data[i].data)) { + printk(KERN_WARNING "%s: RAM download at 0x%08x " + "(len=%d) failed\n", dev->name, + param->data[i].addr, param->data[i].len); + ret = -EIO; + goto out; + } + } + + PDEBUG(DEBUG_EXTRA2, "Disable genesis mode\n"); + local->func->genesis_reset(local, ram16 ? 0x07 : 0x17); + if (prism2_enable_aux_port(dev, 0)) { + printk(KERN_DEBUG "%s: Failed to disable AUX port\n", + dev->name); + } + + mdelay(5); + local->hw_downloading = 0; + + PDEBUG(DEBUG_EXTRA2, "Trying to initialize card\n"); + /* + * Make sure the INIT command does not generate a command completion + * event by disabling interrupts. + */ + hfa384x_disable_interrupts(dev); + if (prism2_hw_init(dev, 1)) { + printk(KERN_DEBUG "%s: Initialization after genesis mode " + "download failed\n", dev->name); + ret = -EIO; + goto out; + } + + PDEBUG(DEBUG_EXTRA2, "Card initialized - running PRI only\n"); + if (prism2_hw_init2(dev, 1)) { + printk(KERN_DEBUG "%s: Initialization(2) after genesis mode " + "download failed\n", dev->name); + ret = -EIO; + goto out; + } + + out: + local->hw_downloading = 0; + return ret; +} + + +#ifdef PRISM2_NON_VOLATILE_DOWNLOAD +/* Note! Non-volatile downloading functionality has not yet been tested + * thoroughly and it may corrupt flash image and effectively kill the card that + * is being updated. You have been warned. */ + +static inline int prism2_download_block(struct net_device *dev, + u32 addr, u8 *data, + u32 bufaddr, int rest_len) +{ + u16 param0, param1; + int block_len; + + block_len = rest_len < 4096 ? rest_len : 4096; + + param0 = addr & 0xffff; + param1 = addr >> 16; + + HFA384X_OUTW(block_len, HFA384X_PARAM2_OFF); + HFA384X_OUTW(param1, HFA384X_PARAM1_OFF); + + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_ENABLE_NON_VOLATILE << 8), + param0)) { + printk(KERN_WARNING "%s: Flash download command execution " + "failed\n", dev->name); + return -1; + } + + if (hfa384x_to_aux(dev, bufaddr, block_len, data)) { + printk(KERN_WARNING "%s: flash download at 0x%08x " + "(len=%d) failed\n", dev->name, addr, block_len); + return -1; + } + + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + HFA384X_OUTW(0, HFA384X_PARAM1_OFF); + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_PROGRAM_NON_VOLATILE << 8), + 0)) { + printk(KERN_WARNING "%s: Flash write command execution " + "failed\n", dev->name); + return -1; + } + + return block_len; +} + + +static int prism2_download_nonvolatile(local_info_t *local, + struct prism2_download_data *dl) +{ + struct net_device *dev = local->dev; + int ret = 0, i; + struct { + u16 page; + u16 offset; + u16 len; + } dlbuffer; + u32 bufaddr; + + if (local->hw_downloading) { + printk(KERN_WARNING "%s: Already downloading - aborting new " + "request\n", dev->name); + return -1; + } + + ret = local->func->get_rid(dev, HFA384X_RID_DOWNLOADBUFFER, + &dlbuffer, 6, 0); + + if (ret < 0) { + printk(KERN_WARNING "%s: Could not read download buffer " + "parameters\n", dev->name); + goto out; + } + + dlbuffer.page = le16_to_cpu(dlbuffer.page); + dlbuffer.offset = le16_to_cpu(dlbuffer.offset); + dlbuffer.len = le16_to_cpu(dlbuffer.len); + + printk(KERN_DEBUG "Download buffer: %d bytes at 0x%04x:0x%04x\n", + dlbuffer.len, dlbuffer.page, dlbuffer.offset); + + bufaddr = (dlbuffer.page << 7) + dlbuffer.offset; + + local->hw_downloading = 1; + + if (!local->pri_only) { + prism2_hw_shutdown(dev, 0); + + if (prism2_hw_init(dev, 0)) { + printk(KERN_WARNING "%s: Could not initialize card for" + " download\n", dev->name); + ret = -1; + goto out; + } + } + + hfa384x_disable_interrupts(dev); + + if (prism2_enable_aux_port(dev, 1)) { + printk(KERN_WARNING "%s: Could not enable AUX port\n", + dev->name); + ret = -1; + goto out; + } + + printk(KERN_DEBUG "%s: starting flash download\n", dev->name); + for (i = 0; i < dl->num_areas; i++) { + int rest_len = dl->data[i].len; + int data_off = 0; + + while (rest_len > 0) { + int block_len; + + block_len = prism2_download_block( + dev, dl->data[i].addr + data_off, + dl->data[i].data + data_off, bufaddr, + rest_len); + + if (block_len < 0) { + ret = -1; + goto out; + } + + rest_len -= block_len; + data_off += block_len; + } + } + + HFA384X_OUTW(0, HFA384X_PARAM1_OFF); + HFA384X_OUTW(0, HFA384X_PARAM2_OFF); + if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_DOWNLOAD | + (HFA384X_PROGMODE_DISABLE << 8), 0)) { + printk(KERN_WARNING "%s: Download command execution failed\n", + dev->name); + ret = -1; + goto out; + } + + if (prism2_enable_aux_port(dev, 0)) { + printk(KERN_DEBUG "%s: Disabling AUX port failed\n", + dev->name); + /* continue anyway.. restart should have taken care of this */ + } + + mdelay(5); + + local->func->hw_reset(dev); + local->hw_downloading = 0; + if (prism2_hw_config(dev, 2)) { + printk(KERN_WARNING "%s: Card configuration after flash " + "download failed\n", dev->name); + ret = -1; + } else { + printk(KERN_INFO "%s: Card initialized successfully after " + "flash download\n", dev->name); + } + + out: + local->hw_downloading = 0; + return ret; +} +#endif /* PRISM2_NON_VOLATILE_DOWNLOAD */ + + +static void prism2_download_free_data(struct prism2_download_data *dl) +{ + int i; + + if (dl == NULL) + return; + + for (i = 0; i < dl->num_areas; i++) + kfree(dl->data[i].data); + kfree(dl); +} + + +static int prism2_download(local_info_t *local, + struct prism2_download_param *param) +{ + int ret = 0; + int i; + u32 total_len = 0; + struct prism2_download_data *dl = NULL; + + printk(KERN_DEBUG "prism2_download: dl_cmd=%d start_addr=0x%08x " + "num_areas=%d\n", + param->dl_cmd, param->start_addr, param->num_areas); + + if (param->num_areas > 100) { + ret = -EINVAL; + goto out; + } + + dl = kmalloc(sizeof(*dl) + param->num_areas * + sizeof(struct prism2_download_data_area), GFP_KERNEL); + if (dl == NULL) { + ret = -ENOMEM; + goto out; + } + memset(dl, 0, sizeof(*dl) + param->num_areas * + sizeof(struct prism2_download_data_area)); + dl->dl_cmd = param->dl_cmd; + dl->start_addr = param->start_addr; + dl->num_areas = param->num_areas; + for (i = 0; i < param->num_areas; i++) { + PDEBUG(DEBUG_EXTRA2, + " area %d: addr=0x%08x len=%d ptr=0x%p\n", + i, param->data[i].addr, param->data[i].len, + param->data[i].ptr); + + dl->data[i].addr = param->data[i].addr; + dl->data[i].len = param->data[i].len; + + total_len += param->data[i].len; + if (param->data[i].len > PRISM2_MAX_DOWNLOAD_AREA_LEN || + total_len > PRISM2_MAX_DOWNLOAD_LEN) { + ret = -E2BIG; + goto out; + } + + dl->data[i].data = kmalloc(dl->data[i].len, GFP_KERNEL); + if (dl->data[i].data == NULL) { + ret = -ENOMEM; + goto out; + } + + if (copy_from_user(dl->data[i].data, param->data[i].ptr, + param->data[i].len)) { + ret = -EFAULT; + goto out; + } + } + + switch (param->dl_cmd) { + case PRISM2_DOWNLOAD_VOLATILE: + case PRISM2_DOWNLOAD_VOLATILE_PERSISTENT: + ret = prism2_download_volatile(local, dl); + break; + case PRISM2_DOWNLOAD_VOLATILE_GENESIS: + case PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT: + ret = prism2_download_genesis(local, dl); + break; + case PRISM2_DOWNLOAD_NON_VOLATILE: +#ifdef PRISM2_NON_VOLATILE_DOWNLOAD + ret = prism2_download_nonvolatile(local, dl); +#else /* PRISM2_NON_VOLATILE_DOWNLOAD */ + printk(KERN_INFO "%s: non-volatile downloading not enabled\n", + local->dev->name); + ret = -EOPNOTSUPP; +#endif /* PRISM2_NON_VOLATILE_DOWNLOAD */ + break; + default: + printk(KERN_DEBUG "%s: unsupported download command %d\n", + local->dev->name, param->dl_cmd); + ret = -EINVAL; + break; + }; + + out: + if (ret == 0 && dl && + param->dl_cmd == PRISM2_DOWNLOAD_VOLATILE_GENESIS_PERSISTENT) { + prism2_download_free_data(local->dl_pri); + local->dl_pri = dl; + } else if (ret == 0 && dl && + param->dl_cmd == PRISM2_DOWNLOAD_VOLATILE_PERSISTENT) { + prism2_download_free_data(local->dl_sec); + local->dl_sec = dl; + } else + prism2_download_free_data(dl); + + return ret; +} |