Add HostAP wireless driver.
Includes minor cleanups from Adrian Bunk <bunk@stusta.de>.
diff --git a/drivers/net/wireless/hostap/hostap_download.c b/drivers/net/wireless/hostap/hostap_download.c
new file mode 100644
index 0000000..ab26b52
--- /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;
+}