--- /dev/null
+/* CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
+ *
+ *
+ * This file is part of Express Card USB Driver
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/usb.h>
+#include "ft1000_usb.h"
+#include <linux/types.h>
+
+#define HARLEY_READ_REGISTER 0x0
+#define HARLEY_WRITE_REGISTER 0x01
+#define HARLEY_READ_DPRAM_32 0x02
+#define HARLEY_READ_DPRAM_LOW 0x03
+#define HARLEY_READ_DPRAM_HIGH 0x04
+#define HARLEY_WRITE_DPRAM_32 0x05
+#define HARLEY_WRITE_DPRAM_LOW 0x06
+#define HARLEY_WRITE_DPRAM_HIGH 0x07
+
+#define HARLEY_READ_OPERATION 0xc1
+#define HARLEY_WRITE_OPERATION 0x41
+
+#if 0
+#define JDEBUG
+#endif
+
+static int ft1000_submit_rx_urb(struct ft1000_info *info);
+
+static u8 tempbuffer[1600];
+
+#define MAX_RCV_LOOP 100
+
+/* send a control message via USB interface synchronously
+ * Parameters: ft1000_usb - device structure
+ * pipe - usb control message pipe
+ * request - control request
+ * requesttype - control message request type
+ * value - value to be written or 0
+ * index - register index
+ * data - data buffer to hold the read/write values
+ * size - data size
+ * timeout - control message time out value
+ */
+static int ft1000_control(struct ft1000_usb *ft1000dev, unsigned int pipe,
+ u8 request, u8 requesttype, u16 value, u16 index,
+ void *data, u16 size, int timeout)
+{
+ int ret;
+
+ if ((ft1000dev == NULL) || (ft1000dev->dev == NULL)) {
+ pr_debug("ft1000dev or ft1000dev->dev == NULL, failure\n");
+ return -ENODEV;
+ }
+
+ ret = usb_control_msg(ft1000dev->dev, pipe, request, requesttype,
+ value, index, data, size, timeout);
+
+ if (ret > 0)
+ ret = 0;
+
+ return ret;
+}
+
+/* returns the value in a register */
+int ft1000_read_register(struct ft1000_usb *ft1000dev, u16 *Data,
+ u16 nRegIndx)
+{
+ int ret = 0;
+
+ ret = ft1000_control(ft1000dev,
+ usb_rcvctrlpipe(ft1000dev->dev, 0),
+ HARLEY_READ_REGISTER,
+ HARLEY_READ_OPERATION,
+ 0,
+ nRegIndx,
+ Data,
+ 2,
+ USB_CTRL_GET_TIMEOUT);
+
+ return ret;
+}
+
+/* writes the value in a register */
+int ft1000_write_register(struct ft1000_usb *ft1000dev, u16 value,
+ u16 nRegIndx)
+{
+ int ret = 0;
+
+ ret = ft1000_control(ft1000dev,
+ usb_sndctrlpipe(ft1000dev->dev, 0),
+ HARLEY_WRITE_REGISTER,
+ HARLEY_WRITE_OPERATION,
+ value,
+ nRegIndx,
+ NULL,
+ 0,
+ USB_CTRL_SET_TIMEOUT);
+
+ return ret;
+}
+
+/* read a number of bytes from DPRAM */
+int ft1000_read_dpram32(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer,
+ u16 cnt)
+{
+ int ret = 0;
+
+ ret = ft1000_control(ft1000dev,
+ usb_rcvctrlpipe(ft1000dev->dev, 0),
+ HARLEY_READ_DPRAM_32,
+ HARLEY_READ_OPERATION,
+ 0,
+ indx,
+ buffer,
+ cnt,
+ USB_CTRL_GET_TIMEOUT);
+
+ return ret;
+}
+
+/* writes into DPRAM a number of bytes */
+int ft1000_write_dpram32(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer,
+ u16 cnt)
+{
+ int ret = 0;
+
+ if (cnt % 4)
+ cnt += cnt - (cnt % 4);
+
+ ret = ft1000_control(ft1000dev,
+ usb_sndctrlpipe(ft1000dev->dev, 0),
+ HARLEY_WRITE_DPRAM_32,
+ HARLEY_WRITE_OPERATION,
+ 0,
+ indx,
+ buffer,
+ cnt,
+ USB_CTRL_SET_TIMEOUT);
+
+ return ret;
+}
+
+/* read 16 bits from DPRAM */
+int ft1000_read_dpram16(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer,
+ u8 highlow)
+{
+ int ret = 0;
+ u8 request;
+
+ if (highlow == 0)
+ request = HARLEY_READ_DPRAM_LOW;
+ else
+ request = HARLEY_READ_DPRAM_HIGH;
+
+ ret = ft1000_control(ft1000dev,
+ usb_rcvctrlpipe(ft1000dev->dev, 0),
+ request,
+ HARLEY_READ_OPERATION,
+ 0,
+ indx,
+ buffer,
+ 2,
+ USB_CTRL_GET_TIMEOUT);
+
+ return ret;
+}
+
+/* write into DPRAM a number of bytes */
+int ft1000_write_dpram16(struct ft1000_usb *ft1000dev, u16 indx, u16 value,
+ u8 highlow)
+{
+ int ret = 0;
+ u8 request;
+
+ if (highlow == 0)
+ request = HARLEY_WRITE_DPRAM_LOW;
+ else
+ request = HARLEY_WRITE_DPRAM_HIGH;
+
+ ret = ft1000_control(ft1000dev,
+ usb_sndctrlpipe(ft1000dev->dev, 0),
+ request,
+ HARLEY_WRITE_OPERATION,
+ value,
+ indx,
+ NULL,
+ 0,
+ USB_CTRL_SET_TIMEOUT);
+
+ return ret;
+}
+
+/* read DPRAM 4 words at a time */
+int fix_ft1000_read_dpram32(struct ft1000_usb *ft1000dev, u16 indx,
+ u8 *buffer)
+{
+ u8 buf[16];
+ u16 pos;
+ int ret = 0;
+
+ pos = (indx / 4) * 4;
+ ret = ft1000_read_dpram32(ft1000dev, pos, buf, 16);
+
+ if (ret == 0) {
+ pos = (indx % 4) * 4;
+ *buffer++ = buf[pos++];
+ *buffer++ = buf[pos++];
+ *buffer++ = buf[pos++];
+ *buffer++ = buf[pos++];
+ } else {
+ pr_debug("DPRAM32 Read failed\n");
+ *buffer++ = 0;
+ *buffer++ = 0;
+ *buffer++ = 0;
+ *buffer++ = 0;
+ }
+
+ return ret;
+}
+
+
+/* Description: This function write to DPRAM 4 words at a time */
+int fix_ft1000_write_dpram32(struct ft1000_usb *ft1000dev, u16 indx, u8 *buffer)
+{
+ u16 pos1;
+ u16 pos2;
+ u16 i;
+ u8 buf[32];
+ u8 resultbuffer[32];
+ u8 *pdata;
+ int ret = 0;
+
+ pos1 = (indx / 4) * 4;
+ pdata = buffer;
+ ret = ft1000_read_dpram32(ft1000dev, pos1, buf, 16);
+
+ if (ret == 0) {
+ pos2 = (indx % 4)*4;
+ buf[pos2++] = *buffer++;
+ buf[pos2++] = *buffer++;
+ buf[pos2++] = *buffer++;
+ buf[pos2++] = *buffer++;
+ ret = ft1000_write_dpram32(ft1000dev, pos1, buf, 16);
+ } else {
+ pr_debug("DPRAM32 Read failed\n");
+ return ret;
+ }
+
+ ret = ft1000_read_dpram32(ft1000dev, pos1, (u8 *)&resultbuffer[0], 16);
+
+ if (ret == 0) {
+ buffer = pdata;
+ for (i = 0; i < 16; i++) {
+ if (buf[i] != resultbuffer[i])
+ ret = -1;
+ }
+ }
+
+ if (ret == -1) {
+ ret = ft1000_write_dpram32(ft1000dev, pos1,
+ (u8 *)&tempbuffer[0], 16);
+ ret = ft1000_read_dpram32(ft1000dev, pos1,
+ (u8 *)&resultbuffer[0], 16);
+ if (ret == 0) {
+ buffer = pdata;
+ for (i = 0; i < 16; i++) {
+ if (tempbuffer[i] != resultbuffer[i]) {
+ ret = -1;
+ pr_debug("Failed to write\n");
+ }
+ }
+ }
+ }
+
+ return ret;
+}
+
+/* reset or activate the DSP */
+static void card_reset_dsp(struct ft1000_usb *ft1000dev, bool value)
+{
+ int status = 0;
+ u16 tempword;
+
+ status = ft1000_write_register(ft1000dev, HOST_INTF_BE,
+ FT1000_REG_SUP_CTRL);
+ status = ft1000_read_register(ft1000dev, &tempword,
+ FT1000_REG_SUP_CTRL);
+
+ if (value) {
+ pr_debug("Reset DSP\n");
+ status = ft1000_read_register(ft1000dev, &tempword,
+ FT1000_REG_RESET);
+ tempword |= DSP_RESET_BIT;
+ status = ft1000_write_register(ft1000dev, tempword,
+ FT1000_REG_RESET);
+ } else {
+ pr_debug("Activate DSP\n");
+ status = ft1000_read_register(ft1000dev, &tempword,
+ FT1000_REG_RESET);
+ tempword |= DSP_ENCRYPTED;
+ tempword &= ~DSP_UNENCRYPTED;
+ status = ft1000_write_register(ft1000dev, tempword,
+ FT1000_REG_RESET);
+ status = ft1000_read_register(ft1000dev, &tempword,
+ FT1000_REG_RESET);
+ tempword &= ~EFUSE_MEM_DISABLE;
+ tempword &= ~DSP_RESET_BIT;
+ status = ft1000_write_register(ft1000dev, tempword,
+ FT1000_REG_RESET);
+ status = ft1000_read_register(ft1000dev, &tempword,
+ FT1000_REG_RESET);
+ }
+}
+
+/* send a command to ASIC
+ * Parameters: ft1000_usb - device structure
+ * ptempbuffer - command buffer
+ * size - command buffer size
+ */
+int card_send_command(struct ft1000_usb *ft1000dev, void *ptempbuffer,
+ int size)
+{
+ int ret;
+ unsigned short temp;
+ unsigned char *commandbuf;
+
+ pr_debug("enter card_send_command... size=%d\n", size);
+
+ ret = ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
+ if (ret)
+ return ret;
+
+ commandbuf = kmalloc(size + 2, GFP_KERNEL);
+ if (!commandbuf)
+ return -ENOMEM;
+ memcpy((void *)commandbuf + 2, ptempbuffer, size);
+
+ if (temp & 0x0100)
+ usleep_range(900, 1100);
+
+ /* check for odd word */
+ size = size + 2;
+
+ /* Must force to be 32 bit aligned */
+ if (size % 4)
+ size += 4 - (size % 4);
+
+ ret = ft1000_write_dpram32(ft1000dev, 0, commandbuf, size);
+ if (ret)
+ return ret;
+ usleep_range(900, 1100);
+ ret = ft1000_write_register(ft1000dev, FT1000_DB_DPRAM_TX,
+ FT1000_REG_DOORBELL);
+ if (ret)
+ return ret;
+ usleep_range(900, 1100);
+
+ ret = ft1000_read_register(ft1000dev, &temp, FT1000_REG_DOORBELL);
+
+#if 0
+ if ((temp & 0x0100) == 0)
+ pr_debug("Message sent\n");
+#endif
+ return ret;
+}
+
+/* load or reload the DSP */
+int dsp_reload(struct ft1000_usb *ft1000dev)
+{
+ int status;
+ u16 tempword;
+ u32 templong;
+
+ struct ft1000_info *pft1000info;
+
+ pft1000info = netdev_priv(ft1000dev->net);
+
+ pft1000info->CardReady = 0;
+
+ /* Program Interrupt Mask register */
+ status = ft1000_write_register(ft1000dev, 0xffff, FT1000_REG_SUP_IMASK);
+
+ status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_RESET);
+ tempword |= ASIC_RESET_BIT;
+ status = ft1000_write_register(ft1000dev, tempword, FT1000_REG_RESET);
+ msleep(1000);
+ status = ft1000_read_register(ft1000dev, &tempword, FT1000_REG_RESET);
+ pr_debug("Reset Register = 0x%x\n", tempword);
+
+ /* Toggle DSP reset */
+ card_reset_dsp(ft1000dev, 1);
+ msleep(1000);
+ card_reset_dsp(ft1000dev, 0);
+ msleep(1000);
+
+ status =
+ ft1000_write_register(ft1000dev, HOST_INTF_BE, FT1000_REG_SUP_CTRL);
+
+ /* Let's check for FEFE */
+ status =
+ ft1000_read_dpram32(ft1000dev, FT1000_MAG_DPRAM_FEFE_INDX,
+ (u8 *)&templong, 4);
+ pr_debug("templong (fefe) = 0x%8x\n", templong);
+
+ /* call codeloader */
+ status = scram_dnldr(ft1000dev, pFileStart, FileLength);
+
+ if (status != 0)
+ return -EIO;
+
+ msleep(1000);
+
+ return 0;
+}
+
+/* call the Card Service function to reset the ASIC. */
+static void ft1000_reset_asic(struct net_device *dev)
+{
+ struct ft1000_info *info = netdev_priv(dev);
+ struct ft1000_usb *ft1000dev = info->priv;
+ u16 tempword;
+
+ /* Let's use the register provided by the Magnemite ASIC to reset the
+ * ASIC and DSP.
+ */
+ ft1000_write_register(ft1000dev, DSP_RESET_BIT | ASIC_RESET_BIT,
+ FT1000_REG_RESET);
+
+ mdelay(1);
+
+ /* set watermark to -1 in order to not generate an interrupt */
+ ft1000_write_register(ft1000dev, 0xffff, FT1000_REG_MAG_WATERMARK);
+
+ /* clear interrupts */
+ ft1000_read_register(ft1000dev, &tempword, FT1000_REG_SUP_ISR);
+ pr_debug("interrupt status register = 0x%x\n", tempword);
+ ft1000_write_register(ft1000dev, tempword, FT1000_REG_SUP_ISR);
+ ft1000_read_register(ft1000dev, &tempword, FT1000_REG_SUP_ISR);
+ pr_debug("interrupt status register = 0x%x\n", tempword);
+}
+
+static int ft1000_reset_card(struct net_device *dev)
+{
+ struct ft1000_info *info = netdev_priv(dev);
+ struct ft1000_usb *ft1000dev = info->priv;
+ u16 tempword;
+ struct prov_record *ptr;
+ struct prov_record *tmp;
+
+ ft1000dev->fCondResetPend = true;
+ info->CardReady = 0;
+ ft1000dev->fProvComplete = false;
+
+ /* Make sure we free any memory reserve for provisioning */
+ list_for_each_entry_safe(ptr, tmp, &info->prov_list, list) {
+ pr_debug("deleting provisioning record\n");
+ list_del(&ptr->list);
+ kfree(ptr->pprov_data);
+ kfree(ptr);
+ }
+
+ pr_debug("reset asic\n");
+ ft1000_reset_asic(dev);
+
+ pr_debug("call dsp_reload\n");
+ dsp_reload(ft1000dev);
+
+ pr_debug("dsp reload successful\n");
+
+ mdelay(10);
+
+ /* Initialize DSP heartbeat area */
+ ft1000_write_dpram16(ft1000dev, FT1000_MAG_HI_HO, ho_mag,
+ FT1000_MAG_HI_HO_INDX);
+ ft1000_read_dpram16(ft1000dev, FT1000_MAG_HI_HO, (u8 *)&tempword,
+ FT1000_MAG_HI_HO_INDX);
+ pr_debug("hi_ho value = 0x%x\n", tempword);
+
+ info->CardReady = 1;
+
+ ft1000dev->fCondResetPend = false;
+
+ return TRUE;
+}
+
+/* callback function when a urb is transmitted */
+static void ft1000_usb_transmit_complete(struct urb *urb)
+{
+
+ struct ft1000_usb *ft1000dev = urb->context;
+
+ if (urb->status)
+ pr_err("%s: TX status %d\n", ft1000dev->net->name, urb->status);
+
+ netif_wake_queue(ft1000dev->net);
+}
+
+/* take an ethernet packet and convert it to a Flarion
+ * packet prior to sending it to the ASIC Downlink FIFO.
+ */
+static int ft1000_copy_down_pkt(struct net_device *netdev, u8 *packet, u16 len)
+{
+ struct ft1000_info *pInfo = netdev_priv(netdev);
+ struct ft1000_usb *pFt1000Dev = pInfo->priv;
+
+ int count, ret;
+ u8 *t;
+ struct pseudo_hdr hdr;
+
+ if (!pInfo->CardReady) {
+ pr_debug("Card Not Ready\n");
+ return -ENODEV;
+ }
+
+ count = sizeof(struct pseudo_hdr) + len;
+ if (count > MAX_BUF_SIZE) {
+ pr_debug("Message Size Overflow! size = %d\n", count);
+ return -EINVAL;
+ }
+
+ if (count % 4)
+ count = count + (4 - (count % 4));
+
+ memset(&hdr, 0, sizeof(struct pseudo_hdr));
+
+ hdr.length = ntohs(count);
+ hdr.source = 0x10;
+ hdr.destination = 0x20;
+ hdr.portdest = 0x20;
+ hdr.portsrc = 0x10;
+ hdr.sh_str_id = 0x91;
+ hdr.control = 0x00;
+
+ hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^
+ hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
+
+ memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
+ memcpy(&pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)], packet, len);
+
+ netif_stop_queue(netdev);
+
+ usb_fill_bulk_urb(pFt1000Dev->tx_urb,
+ pFt1000Dev->dev,
+ usb_sndbulkpipe(pFt1000Dev->dev,
+ pFt1000Dev->bulk_out_endpointAddr),
+ pFt1000Dev->tx_buf, count,
+ ft1000_usb_transmit_complete, pFt1000Dev);
+
+ t = (u8 *)pFt1000Dev->tx_urb->transfer_buffer;
+
+ ret = usb_submit_urb(pFt1000Dev->tx_urb, GFP_ATOMIC);
+
+ if (ret) {
+ pr_debug("failed tx_urb %d\n", ret);
+ return ret;
+ }
+ pInfo->stats.tx_packets++;
+ pInfo->stats.tx_bytes += (len + 14);
+
+ return 0;
+}
+
+/* transmit an ethernet packet
+ * Parameters: skb - socket buffer to be sent
+ * dev - network device
+ */
+static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ft1000_info *pInfo = netdev_priv(dev);
+ struct ft1000_usb *pFt1000Dev = pInfo->priv;
+ u8 *pdata;
+ int maxlen, pipe;
+
+ if (skb == NULL) {
+ pr_debug("skb == NULL!!!\n");
+ return NETDEV_TX_OK;
+ }
+
+ if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
+ pr_debug("network driver is closed, return\n");
+ goto err;
+ }
+
+ pipe =
+ usb_sndbulkpipe(pFt1000Dev->dev, pFt1000Dev->bulk_out_endpointAddr);
+ maxlen = usb_maxpacket(pFt1000Dev->dev, pipe, usb_pipeout(pipe));
+
+ pdata = (u8 *)skb->data;
+
+ if (pInfo->mediastate == 0) {
+ /* Drop packet is mediastate is down */
+ pr_debug("mediastate is down\n");
+ goto err;
+ }
+
+ if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
+ /* Drop packet which has invalid size */
+ pr_debug("invalid ethernet length\n");
+ goto err;
+ }
+
+ ft1000_copy_down_pkt(dev, pdata + ENET_HEADER_SIZE - 2,
+ skb->len - ENET_HEADER_SIZE + 2);
+
+err:
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+/* open the network driver */
+static int ft1000_open(struct net_device *dev)
+{
+ struct ft1000_info *pInfo = netdev_priv(dev);
+ struct ft1000_usb *pFt1000Dev = pInfo->priv;
+ struct timeval tv;
+
+ pr_debug("ft1000_open is called for card %d\n", pFt1000Dev->CardNumber);
+
+ pInfo->stats.rx_bytes = 0;
+ pInfo->stats.tx_bytes = 0;
+ pInfo->stats.rx_packets = 0;
+ pInfo->stats.tx_packets = 0;
+ do_gettimeofday(&tv);
+ pInfo->ConTm = tv.tv_sec;
+ pInfo->ProgConStat = 0;
+
+ netif_start_queue(dev);
+
+ netif_carrier_on(dev);
+
+ return ft1000_submit_rx_urb(pInfo);
+}
+
+static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev)
+{
+ struct ft1000_info *info = netdev_priv(dev);
+
+ return &(info->stats);
+}
+
+static const struct net_device_ops ftnet_ops = {
+ .ndo_open = &ft1000_open,
+ .ndo_stop = &ft1000_close,
+ .ndo_start_xmit = &ft1000_start_xmit,
+ .ndo_get_stats = &ft1000_netdev_stats,
+};
+
+/* initialize the network device */
+static int ft1000_reset(void *dev)
+{
+ ft1000_reset_card(dev);
+ return 0;
+}
+
+int init_ft1000_netdev(struct ft1000_usb *ft1000dev)
+{
+ struct net_device *netdev;
+ struct ft1000_info *pInfo = NULL;
+ struct dpram_blk *pdpram_blk;
+ int i, ret_val;
+ struct list_head *cur, *tmp;
+ char card_nr[2];
+ u8 gCardIndex = 0;
+
+ netdev = alloc_etherdev(sizeof(struct ft1000_info));
+ if (!netdev) {
+ pr_debug("can not allocate network device\n");
+ return -ENOMEM;
+ }
+
+ pInfo = netdev_priv(netdev);
+
+ memset(pInfo, 0, sizeof(struct ft1000_info));
+
+ dev_alloc_name(netdev, netdev->name);
+
+ pr_debug("network device name is %s\n", netdev->name);
+
+ if (strncmp(netdev->name, "eth", 3) == 0) {
+ card_nr[0] = netdev->name[3];
+ card_nr[1] = '\0';
+ ret_val = kstrtou8(card_nr, 10, &gCardIndex);
+ if (ret_val) {
+ netdev_err(ft1000dev->net, "Can't parse netdev\n");
+ goto err_net;
+ }
+
+ ft1000dev->CardNumber = gCardIndex;
+ pr_debug("card number = %d\n", ft1000dev->CardNumber);
+ } else {
+ netdev_err(ft1000dev->net, "ft1000: Invalid device name\n");
+ ret_val = -ENXIO;
+ goto err_net;
+ }
+
+ memset(&pInfo->stats, 0, sizeof(struct net_device_stats));
+
+ spin_lock_init(&pInfo->dpram_lock);
+ pInfo->priv = ft1000dev;
+ pInfo->DrvErrNum = 0;
+ pInfo->registered = 1;
+ pInfo->ft1000_reset = ft1000_reset;
+ pInfo->mediastate = 0;
+ pInfo->fifo_cnt = 0;
+ ft1000dev->DeviceCreated = FALSE;
+ pInfo->CardReady = 0;
+ pInfo->DSP_TIME[0] = 0;
+ pInfo->DSP_TIME[1] = 0;
+ pInfo->DSP_TIME[2] = 0;
+ pInfo->DSP_TIME[3] = 0;
+ ft1000dev->fAppMsgPend = false;
+ ft1000dev->fCondResetPend = false;
+ ft1000dev->usbboot = 0;
+ ft1000dev->dspalive = 0;
+ memset(&ft1000dev->tempbuf[0], 0, sizeof(ft1000dev->tempbuf));
+
+ INIT_LIST_HEAD(&pInfo->prov_list);
+
+ INIT_LIST_HEAD(&ft1000dev->nodes.list);
+
+ netdev->netdev_ops = &ftnet_ops;
+
+ ft1000dev->net = netdev;
+
+ pr_debug("Initialize free_buff_lock and freercvpool\n");
+ spin_lock_init(&free_buff_lock);
+
+ /* initialize a list of buffers to be use for queuing
+ * up receive command data
+ */
+ INIT_LIST_HEAD(&freercvpool);
+
+ /* create list of free buffers */
+ for (i = 0; i < NUM_OF_FREE_BUFFERS; i++) {
+ /* Get memory for DPRAM_DATA link list */
+ pdpram_blk = kmalloc(sizeof(struct dpram_blk), GFP_KERNEL);
+ if (pdpram_blk == NULL) {
+ ret_val = -ENOMEM;
+ goto err_free;
+ }
+ /* Get a block of memory to store command data */
+ pdpram_blk->pbuffer = kmalloc(MAX_CMD_SQSIZE, GFP_KERNEL);
+ if (pdpram_blk->pbuffer == NULL) {
+ ret_val = -ENOMEM;
+ kfree(pdpram_blk);
+ goto err_free;
+ }
+ /* link provisioning data */
+ list_add_tail(&pdpram_blk->list, &freercvpool);
+ }
+ numofmsgbuf = NUM_OF_FREE_BUFFERS;
+
+ return 0;
+
+err_free:
+ list_for_each_safe(cur, tmp, &freercvpool) {
+ pdpram_blk = list_entry(cur, struct dpram_blk, list);
+ list_del(&pdpram_blk->list);
+ kfree(pdpram_blk->pbuffer);
+ kfree(pdpram_blk);
+ }
+err_net:
+ free_netdev(netdev);
+ return ret_val;
+}
+
+/* register the network driver */
+int reg_ft1000_netdev(struct ft1000_usb *ft1000dev,
+ struct usb_interface *intf)
+{
+ struct net_device *netdev;
+ struct ft1000_info *pInfo;
+ int rc;
+
+ netdev = ft1000dev->net;
+ pInfo = netdev_priv(ft1000dev->net);
+
+ ft1000_read_register(ft1000dev, &pInfo->AsicID, FT1000_REG_ASIC_ID);
+
+ usb_set_intfdata(intf, pInfo);
+ SET_NETDEV_DEV(netdev, &intf->dev);
+
+ rc = register_netdev(netdev);
+ if (rc) {
+ pr_debug("could not register network device\n");
+ free_netdev(netdev);
+ return rc;
+ }
+
+ ft1000_create_dev(ft1000dev);
+
+ pInfo->CardReady = 1;
+
+ return 0;
+}
+
+/* take a packet from the FIFO up link and
+ * convert it into an ethernet packet and deliver it to the IP stack
+ */
+static int ft1000_copy_up_pkt(struct urb *urb)
+{
+ struct ft1000_info *info = urb->context;
+ struct ft1000_usb *ft1000dev = info->priv;
+ struct net_device *net = ft1000dev->net;
+
+ u16 tempword;
+ u16 len;
+ u16 lena;
+ struct sk_buff *skb;
+ u16 i;
+ u8 *pbuffer = NULL;
+ u8 *ptemp = NULL;
+ u16 *chksum;
+
+ if (ft1000dev->status & FT1000_STATUS_CLOSING) {
+ pr_debug("network driver is closed, return\n");
+ return 0;
+ }
+ /* Read length */
+ len = urb->transfer_buffer_length;
+ lena = urb->actual_length;
+
+ chksum = (u16 *)ft1000dev->rx_buf;
+
+ tempword = *chksum++;
+ for (i = 1; i < 7; i++)
+ tempword ^= *chksum++;
+
+ if (tempword != *chksum) {
+ info->stats.rx_errors++;
+ ft1000_submit_rx_urb(info);
+ return -1;
+ }
+
+ skb = dev_alloc_skb(len + 12 + 2);
+
+ if (skb == NULL) {
+ pr_debug("No Network buffers available\n");
+ info->stats.rx_errors++;
+ ft1000_submit_rx_urb(info);
+ return -1;
+ }
+
+ pbuffer = (u8 *)skb_put(skb, len + 12);
+
+ /* subtract the number of bytes read already */
+ ptemp = pbuffer;
+
+ /* fake MAC address */
+ *pbuffer++ = net->dev_addr[0];
+ *pbuffer++ = net->dev_addr[1];
+ *pbuffer++ = net->dev_addr[2];
+ *pbuffer++ = net->dev_addr[3];
+ *pbuffer++ = net->dev_addr[4];
+ *pbuffer++ = net->dev_addr[5];
+ *pbuffer++ = 0x00;
+ *pbuffer++ = 0x07;
+ *pbuffer++ = 0x35;
+ *pbuffer++ = 0xff;
+ *pbuffer++ = 0xff;
+ *pbuffer++ = 0xfe;
+
+ memcpy(pbuffer, ft1000dev->rx_buf + sizeof(struct pseudo_hdr),
+ len - sizeof(struct pseudo_hdr));
+
+ skb->dev = net;
+
+ skb->protocol = eth_type_trans(skb, net);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ netif_rx(skb);
+
+ info->stats.rx_packets++;
+ /* Add on 12 bytes for MAC address which was removed */
+ info->stats.rx_bytes += (lena + 12);
+
+ ft1000_submit_rx_urb(info);
+
+ return 0;
+}
+
+
+/* the receiving function of the network driver */
+static int ft1000_submit_rx_urb(struct ft1000_info *info)
+{
+ int result;
+ struct ft1000_usb *pFt1000Dev = info->priv;
+
+ if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
+ pr_debug("network driver is closed, return\n");
+ return -ENODEV;
+ }
+
+ usb_fill_bulk_urb(pFt1000Dev->rx_urb,
+ pFt1000Dev->dev,
+ usb_rcvbulkpipe(pFt1000Dev->dev,
+ pFt1000Dev->bulk_in_endpointAddr),
+ pFt1000Dev->rx_buf, MAX_BUF_SIZE,
+ (usb_complete_t)ft1000_copy_up_pkt, info);
+
+ result = usb_submit_urb(pFt1000Dev->rx_urb, GFP_ATOMIC);
+
+ if (result) {
+ pr_err("submitting rx_urb %d failed\n", result);
+ return result;
+ }
+
+ return 0;
+}
+
+/* close the network driver */
+int ft1000_close(struct net_device *net)
+{
+ struct ft1000_info *pInfo = netdev_priv(net);
+ struct ft1000_usb *ft1000dev = pInfo->priv;
+
+ ft1000dev->status |= FT1000_STATUS_CLOSING;
+
+ pr_debug("pInfo=%p, ft1000dev=%p\n", pInfo, ft1000dev);
+ netif_carrier_off(net);
+ netif_stop_queue(net);
+ ft1000dev->status &= ~FT1000_STATUS_CLOSING;
+
+ pInfo->ProgConStat = 0xff;
+
+ return 0;
+}
+
+/* check if the device is presently available on the system. */
+static int ft1000_chkcard(struct ft1000_usb *dev)
+{
+ u16 tempword;
+ int status;
+
+ if (dev->fCondResetPend) {
+ pr_debug("Card is being reset, return FALSE\n");
+ return TRUE;
+ }
+ /* Mask register is used to check for device presence since it is never
+ * set to zero.
+ */
+ status = ft1000_read_register(dev, &tempword, FT1000_REG_SUP_IMASK);
+ if (tempword == 0) {
+ pr_debug("IMASK = 0 Card not detected\n");
+ return FALSE;
+ }
+ /* The system will return the value of 0xffff for the version register
+ * if the device is not present.
+ */
+ status = ft1000_read_register(dev, &tempword, FT1000_REG_ASIC_ID);
+ if (tempword != 0x1b01) {
+ dev->status |= FT1000_STATUS_CLOSING;
+ pr_debug("Version = 0xffff Card not detected\n");
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/* read a message from the dpram area.
+ * Input:
+ * dev - network device structure
+ * pbuffer - caller supply address to buffer
+ */
+static bool ft1000_receive_cmd(struct ft1000_usb *dev, u16 *pbuffer,
+ int maxsz)
+{
+ u16 size;
+ int ret;
+ u16 *ppseudohdr;
+ int i;
+ u16 tempword;
+
+ ret =
+ ft1000_read_dpram16(dev, FT1000_MAG_PH_LEN, (u8 *)&size,
+ FT1000_MAG_PH_LEN_INDX);
+ size = ntohs(size) + PSEUDOSZ;
+ if (size > maxsz) {
+ pr_debug("Invalid command length = %d\n", size);
+ return FALSE;
+ }
+ ppseudohdr = (u16 *)pbuffer;
+ ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE,
+ FT1000_REG_DPRAM_ADDR);
+ ret =
+ ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
+ pbuffer++;
+ ft1000_write_register(dev, FT1000_DPRAM_MAG_RX_BASE + 1,
+ FT1000_REG_DPRAM_ADDR);
+ for (i = 0; i <= (size >> 2); i++) {
+ ret =
+ ft1000_read_register(dev, pbuffer,
+ FT1000_REG_MAG_DPDATAL);
+ pbuffer++;
+ ret =
+ ft1000_read_register(dev, pbuffer,
+ FT1000_REG_MAG_DPDATAH);
+ pbuffer++;
+ }
+ /* copy odd aligned word */
+ ret =
+ ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAL);
+
+ pbuffer++;
+ ret =
+ ft1000_read_register(dev, pbuffer, FT1000_REG_MAG_DPDATAH);
+
+ pbuffer++;
+ if (size & 0x0001) {
+ /* copy odd byte from fifo */
+ ret =
+ ft1000_read_register(dev, &tempword,
+ FT1000_REG_DPRAM_DATA);
+ *pbuffer = ntohs(tempword);
+ }
+ /* Check if pseudo header checksum is good
+ * Calculate pseudo header checksum
+ */
+ tempword = *ppseudohdr++;
+ for (i = 1; i < 7; i++)
+ tempword ^= *ppseudohdr++;
+
+ if (tempword != *ppseudohdr)
+ return FALSE;
+
+ return TRUE;
+}
+
+static int ft1000_dsp_prov(void *arg)
+{
+ struct ft1000_usb *dev = (struct ft1000_usb *)arg;
+ struct ft1000_info *info = netdev_priv(dev->net);
+ u16 tempword;
+ u16 len;
+ u16 i = 0;
+ struct prov_record *ptr;
+ struct pseudo_hdr *ppseudo_hdr;
+ u16 *pmsg;
+ int status;
+ u16 TempShortBuf[256];
+
+ while (list_empty(&info->prov_list) == 0) {
+ pr_debug("DSP Provisioning List Entry\n");
+
+ /* Check if doorbell is available */
+ pr_debug("check if doorbell is cleared\n");
+ status =
+ ft1000_read_register(dev, &tempword, FT1000_REG_DOORBELL);
+ if (status) {
+ pr_debug("ft1000_read_register error\n");
+ break;
+ }
+
+ while (tempword & FT1000_DB_DPRAM_TX) {
+ mdelay(10);
+ i++;
+ if (i == 10) {
+ pr_debug("message drop\n");
+ return -1;
+ }
+ ft1000_read_register(dev, &tempword,
+ FT1000_REG_DOORBELL);
+ }
+
+ if (!(tempword & FT1000_DB_DPRAM_TX)) {
+ pr_debug("*** Provision Data Sent to DSP\n");
+
+ /* Send provisioning data */
+ ptr =
+ list_entry(info->prov_list.next, struct prov_record,
+ list);
+ len = *(u16 *)ptr->pprov_data;
+ len = htons(len);
+ len += PSEUDOSZ;
+
+ pmsg = (u16 *)ptr->pprov_data;
+ ppseudo_hdr = (struct pseudo_hdr *)pmsg;
+ /* Insert slow queue sequence number */
+ ppseudo_hdr->seq_num = info->squeseqnum++;
+ ppseudo_hdr->portsrc = 0;
+ /* Calculate new checksum */
+ ppseudo_hdr->checksum = *pmsg++;
+ for (i = 1; i < 7; i++)
+ ppseudo_hdr->checksum ^= *pmsg++;
+
+ TempShortBuf[0] = 0;
+ TempShortBuf[1] = htons(len);
+ memcpy(&TempShortBuf[2], ppseudo_hdr, len);
+
+ status =
+ ft1000_write_dpram32(dev, 0,
+ (u8 *)&TempShortBuf[0],
+ (unsigned short)(len + 2));
+ status =
+ ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
+ FT1000_REG_DOORBELL);
+
+ list_del(&ptr->list);
+ kfree(ptr->pprov_data);
+ kfree(ptr);
+ }
+ usleep_range(9000, 11000);
+ }
+
+ pr_debug("DSP Provisioning List Entry finished\n");
+
+ msleep(100);
+
+ dev->fProvComplete = true;
+ info->CardReady = 1;
+
+ return 0;
+}
+
+static int ft1000_proc_drvmsg(struct ft1000_usb *dev, u16 size)
+{
+ struct ft1000_info *info = netdev_priv(dev->net);
+ u16 msgtype;
+ u16 tempword;
+ struct media_msg *pmediamsg;
+ struct dsp_init_msg *pdspinitmsg;
+ struct drv_msg *pdrvmsg;
+ u16 i;
+ struct pseudo_hdr *ppseudo_hdr;
+ u16 *pmsg;
+ int status;
+ union {
+ u8 byte[2];
+ u16 wrd;
+ } convert;
+
+ char *cmdbuffer = kmalloc(1600, GFP_KERNEL);
+
+ if (!cmdbuffer)
+ return -ENOMEM;
+
+ status = ft1000_read_dpram32(dev, 0x200, cmdbuffer, size);
+
+#ifdef JDEBUG
+ print_hex_dump_debug("cmdbuffer: ", HEX_DUMP_OFFSET, 16, 1,
+ cmdbuffer, size, true);
+#endif
+ pdrvmsg = (struct drv_msg *)&cmdbuffer[2];
+ msgtype = ntohs(pdrvmsg->type);
+ pr_debug("Command message type = 0x%x\n", msgtype);
+ switch (msgtype) {
+ case MEDIA_STATE:{
+ pr_debug("Command message type = MEDIA_STATE\n");
+ pmediamsg = (struct media_msg *)&cmdbuffer[0];
+ if (info->ProgConStat != 0xFF) {
+ if (pmediamsg->state) {
+ pr_debug("Media is up\n");
+ if (info->mediastate == 0) {
+ if (dev->NetDevRegDone)
+ netif_wake_queue(dev->net);
+ info->mediastate = 1;
+ }
+ } else {
+ pr_debug("Media is down\n");
+ if (info->mediastate == 1) {
+ info->mediastate = 0;
+ if (dev->NetDevRegDone)
+ info->ConTm = 0;
+ }
+ }
+ } else {
+ pr_debug("Media is down\n");
+ if (info->mediastate == 1) {
+ info->mediastate = 0;
+ info->ConTm = 0;
+ }
+ }
+ break;
+ }
+ case DSP_INIT_MSG:{
+ pr_debug("Command message type = DSP_INIT_MSG\n");
+ pdspinitmsg = (struct dsp_init_msg *)&cmdbuffer[2];
+ memcpy(info->DspVer, pdspinitmsg->DspVer, DSPVERSZ);
+ pr_debug("DSPVER = 0x%2x 0x%2x 0x%2x 0x%2x\n",
+ info->DspVer[0], info->DspVer[1], info->DspVer[2],
+ info->DspVer[3]);
+ memcpy(info->HwSerNum, pdspinitmsg->HwSerNum,
+ HWSERNUMSZ);
+ memcpy(info->Sku, pdspinitmsg->Sku, SKUSZ);
+ memcpy(info->eui64, pdspinitmsg->eui64, EUISZ);
+ pr_debug("EUI64=%2x.%2x.%2x.%2x.%2x.%2x.%2x.%2x\n",
+ info->eui64[0], info->eui64[1], info->eui64[2],
+ info->eui64[3], info->eui64[4], info->eui64[5],
+ info->eui64[6], info->eui64[7]);
+ dev->net->dev_addr[0] = info->eui64[0];
+ dev->net->dev_addr[1] = info->eui64[1];
+ dev->net->dev_addr[2] = info->eui64[2];
+ dev->net->dev_addr[3] = info->eui64[5];
+ dev->net->dev_addr[4] = info->eui64[6];
+ dev->net->dev_addr[5] = info->eui64[7];
+
+ if (ntohs(pdspinitmsg->length) ==
+ (sizeof(struct dsp_init_msg) - 20)) {
+ memcpy(info->ProductMode, pdspinitmsg->ProductMode,
+ MODESZ);
+ memcpy(info->RfCalVer, pdspinitmsg->RfCalVer, CALVERSZ);
+ memcpy(info->RfCalDate, pdspinitmsg->RfCalDate,
+ CALDATESZ);
+ pr_debug("RFCalVer = 0x%2x 0x%2x\n",
+ info->RfCalVer[0], info->RfCalVer[1]);
+ }
+ break;
+ }
+ case DSP_PROVISION:{
+ pr_debug("Command message type = DSP_PROVISION\n");
+
+ /* kick off dspprov routine to start provisioning
+ * Send provisioning data to DSP
+ */
+ if (list_empty(&info->prov_list) == 0) {
+ dev->fProvComplete = false;
+ status = ft1000_dsp_prov(dev);
+ if (status != 0)
+ goto out;
+ } else {
+ dev->fProvComplete = true;
+ status = ft1000_write_register(dev, FT1000_DB_HB,
+ FT1000_REG_DOORBELL);
+ pr_debug("No more DSP provisioning data in dsp image\n");
+ }
+ pr_debug("DSP PROVISION is done\n");
+ break;
+ }
+ case DSP_STORE_INFO:{
+ pr_debug("Command message type = DSP_STORE_INFO");
+ tempword = ntohs(pdrvmsg->length);
+ info->DSPInfoBlklen = tempword;
+ if (tempword < (MAX_DSP_SESS_REC - 4)) {
+ pmsg = (u16 *)&pdrvmsg->data[0];
+ for (i = 0; i < ((tempword + 1) / 2); i++) {
+ pr_debug("dsp info data = 0x%x\n", *pmsg);
+ info->DSPInfoBlk[i + 10] = *pmsg++;
+ }
+ } else {
+ info->DSPInfoBlklen = 0;
+ }
+ break;
+ }
+ case DSP_GET_INFO:{
+ pr_debug("Got DSP_GET_INFO\n");
+ /* copy dsp info block to dsp */
+ dev->DrvMsgPend = 1;
+ /* allow any outstanding ioctl to finish */
+ mdelay(10);
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_DOORBELL);
+ if (tempword & FT1000_DB_DPRAM_TX) {
+ mdelay(10);
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_DOORBELL);
+ if (tempword & FT1000_DB_DPRAM_TX) {
+ mdelay(10);
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_DOORBELL);
+ if (tempword & FT1000_DB_DPRAM_TX)
+ break;
+ }
+ }
+ /* Put message into Slow Queue Form Pseudo header */
+ pmsg = (u16 *)info->DSPInfoBlk;
+ *pmsg++ = 0;
+ *pmsg++ = htons(info->DSPInfoBlklen + 20 + info->DSPInfoBlklen);
+ ppseudo_hdr =
+ (struct pseudo_hdr *)(u16 *)&info->DSPInfoBlk[2];
+ ppseudo_hdr->length = htons(info->DSPInfoBlklen + 4
+ + info->DSPInfoBlklen);
+ ppseudo_hdr->source = 0x10;
+ ppseudo_hdr->destination = 0x20;
+ ppseudo_hdr->portdest = 0;
+ ppseudo_hdr->portsrc = 0;
+ ppseudo_hdr->sh_str_id = 0;
+ ppseudo_hdr->control = 0;
+ ppseudo_hdr->rsvd1 = 0;
+ ppseudo_hdr->rsvd2 = 0;
+ ppseudo_hdr->qos_class = 0;
+ /* Insert slow queue sequence number */
+ ppseudo_hdr->seq_num = info->squeseqnum++;
+ /* Insert application id */
+ ppseudo_hdr->portsrc = 0;
+ /* Calculate new checksum */
+ ppseudo_hdr->checksum = *pmsg++;
+ for (i = 1; i < 7; i++)
+ ppseudo_hdr->checksum ^= *pmsg++;
+
+ info->DSPInfoBlk[10] = 0x7200;
+ info->DSPInfoBlk[11] = htons(info->DSPInfoBlklen);
+ status = ft1000_write_dpram32(dev, 0,
+ (u8 *)&info->DSPInfoBlk[0],
+ (unsigned short)(info->DSPInfoBlklen + 22));
+ status = ft1000_write_register(dev, FT1000_DB_DPRAM_TX,
+ FT1000_REG_DOORBELL);
+ dev->DrvMsgPend = 0;
+ break;
+ }
+ case GET_DRV_ERR_RPT_MSG:{
+ pr_debug("Got GET_DRV_ERR_RPT_MSG\n");
+ /* copy driver error message to dsp */
+ dev->DrvMsgPend = 1;
+ /* allow any outstanding ioctl to finish */
+ mdelay(10);
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_DOORBELL);
+ if (tempword & FT1000_DB_DPRAM_TX) {
+ mdelay(10);
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_DOORBELL);
+ if (tempword & FT1000_DB_DPRAM_TX)
+ mdelay(10);
+ }
+ if ((tempword & FT1000_DB_DPRAM_TX) == 0) {
+ /* Put message into Slow Queue Form Pseudo header */
+ pmsg = (u16 *)&tempbuffer[0];
+ ppseudo_hdr = (struct pseudo_hdr *)pmsg;
+ ppseudo_hdr->length = htons(0x0012);
+ ppseudo_hdr->source = 0x10;
+ ppseudo_hdr->destination = 0x20;
+ ppseudo_hdr->portdest = 0;
+ ppseudo_hdr->portsrc = 0;
+ ppseudo_hdr->sh_str_id = 0;
+ ppseudo_hdr->control = 0;
+ ppseudo_hdr->rsvd1 = 0;
+ ppseudo_hdr->rsvd2 = 0;
+ ppseudo_hdr->qos_class = 0;
+ /* Insert slow queue sequence number */
+ ppseudo_hdr->seq_num = info->squeseqnum++;
+ /* Insert application id */
+ ppseudo_hdr->portsrc = 0;
+ /* Calculate new checksum */
+ ppseudo_hdr->checksum = *pmsg++;
+ for (i = 1; i < 7; i++)
+ ppseudo_hdr->checksum ^= *pmsg++;
+
+ pmsg = (u16 *)&tempbuffer[16];
+ *pmsg++ = htons(RSP_DRV_ERR_RPT_MSG);
+ *pmsg++ = htons(0x000e);
+ *pmsg++ = htons(info->DSP_TIME[0]);
+ *pmsg++ = htons(info->DSP_TIME[1]);
+ *pmsg++ = htons(info->DSP_TIME[2]);
+ *pmsg++ = htons(info->DSP_TIME[3]);
+ convert.byte[0] = info->DspVer[0];
+ convert.byte[1] = info->DspVer[1];
+ *pmsg++ = convert.wrd;
+ convert.byte[0] = info->DspVer[2];
+ convert.byte[1] = info->DspVer[3];
+ *pmsg++ = convert.wrd;
+ *pmsg++ = htons(info->DrvErrNum);
+
+ status = card_send_command(dev, (unsigned char *)&tempbuffer[0],
+ (u16)(0x0012 + PSEUDOSZ));
+ if (status)
+ goto out;
+ info->DrvErrNum = 0;
+ }
+ dev->DrvMsgPend = 0;
+ break;
+ }
+ default:
+ break;
+ }
+
+ status = 0;
+out:
+ kfree(cmdbuffer);
+ return status;
+}
+
+/* Check which application has registered for dsp broadcast messages */
+static int dsp_broadcast_msg_id(struct ft1000_usb *dev)
+{
+ struct dpram_blk *pdpram_blk;
+ unsigned long flags;
+ int i;
+
+ for (i = 0; i < MAX_NUM_APP; i++) {
+ if ((dev->app_info[i].DspBCMsgFlag)
+ && (dev->app_info[i].fileobject)
+ && (dev->app_info[i].NumOfMsg
+ < MAX_MSG_LIMIT)) {
+ pdpram_blk = ft1000_get_buffer(&freercvpool);
+ if (pdpram_blk == NULL) {
+ pr_debug("Out of memory in free receive command pool\n");
+ dev->app_info[i].nRxMsgMiss++;
+ return -1;
+ }
+ if (ft1000_receive_cmd(dev, pdpram_blk->pbuffer,
+ MAX_CMD_SQSIZE)) {
+ /* Put message into the
+ * appropriate application block
+ */
+ dev->app_info[i].nRxMsg++;
+ spin_lock_irqsave(&free_buff_lock, flags);
+ list_add_tail(&pdpram_blk->list,
+ &dev->app_info[i] .app_sqlist);
+ dev->app_info[i].NumOfMsg++;
+ spin_unlock_irqrestore(&free_buff_lock, flags);
+ wake_up_interruptible(&dev->app_info[i]
+ .wait_dpram_msg);
+ } else {
+ dev->app_info[i].nRxMsgMiss++;
+ ft1000_free_buffer(pdpram_blk, &freercvpool);
+ pr_debug("ft1000_get_buffer NULL\n");
+ return -1;
+ }
+ }
+ }
+ return 0;
+}
+
+static int handle_misc_portid(struct ft1000_usb *dev)
+{
+ struct dpram_blk *pdpram_blk;
+ int i;
+
+ pdpram_blk = ft1000_get_buffer(&freercvpool);
+ if (pdpram_blk == NULL) {
+ pr_debug("Out of memory in free receive command pool\n");
+ return -1;
+ }
+ if (!ft1000_receive_cmd(dev, pdpram_blk->pbuffer, MAX_CMD_SQSIZE))
+ goto exit_failure;
+
+ /* Search for correct application block */
+ for (i = 0; i < MAX_NUM_APP; i++) {
+ if (dev->app_info[i].app_id == ((struct pseudo_hdr *)
+ pdpram_blk->pbuffer)->portdest)
+ break;
+ }
+ if (i == MAX_NUM_APP) {
+ pr_debug("No application matching id = %d\n",
+ ((struct pseudo_hdr *)pdpram_blk->pbuffer)->portdest);
+ goto exit_failure;
+ } else if (dev->app_info[i].NumOfMsg > MAX_MSG_LIMIT) {
+ goto exit_failure;
+ } else {
+ dev->app_info[i].nRxMsg++;
+ /* Put message into the appropriate application block */
+ list_add_tail(&pdpram_blk->list, &dev->app_info[i].app_sqlist);
+ dev->app_info[i].NumOfMsg++;
+ }
+ return 0;
+
+exit_failure:
+ ft1000_free_buffer(pdpram_blk, &freercvpool);
+ return -1;
+}
+
+int ft1000_poll(void *dev_id)
+{
+ struct ft1000_usb *dev = (struct ft1000_usb *)dev_id;
+ struct ft1000_info *info = netdev_priv(dev->net);
+ u16 tempword;
+ int status;
+ u16 size;
+ int i;
+ u16 data;
+ u16 modulo;
+ u16 portid;
+
+ if (ft1000_chkcard(dev) == FALSE) {
+ pr_debug("failed\n");
+ return -1;
+ }
+ status = ft1000_read_register(dev, &tempword, FT1000_REG_DOORBELL);
+ if (!status) {
+ if (tempword & FT1000_DB_DPRAM_RX) {
+ status = ft1000_read_dpram16(dev,
+ 0x200, (u8 *)&data, 0);
+ size = ntohs(data) + 16 + 2;
+ if (size % 4) {
+ modulo = 4 - (size % 4);
+ size = size + modulo;
+ }
+ status = ft1000_read_dpram16(dev, 0x201,
+ (u8 *)&portid, 1);
+ portid &= 0xff;
+ if (size < MAX_CMD_SQSIZE) {
+ switch (portid) {
+ case DRIVERID:
+ pr_debug("FT1000_REG_DOORBELL message type: FT1000_DB_DPRAM_RX : portid DRIVERID\n");
+ status = ft1000_proc_drvmsg(dev, size);
+ if (status != 0)
+ return status;
+ break;
+ case DSPBCMSGID:
+ status = dsp_broadcast_msg_id(dev);
+ break;
+ default:
+ status = handle_misc_portid(dev);
+ break;
+ }
+ } else
+ pr_debug("Invalid total length for SlowQ = %d\n",
+ size);
+ status = ft1000_write_register(dev,
+ FT1000_DB_DPRAM_RX,
+ FT1000_REG_DOORBELL);
+ } else if (tempword & FT1000_DSP_ASIC_RESET) {
+ /* Let's reset the ASIC from the Host side as well */
+ status = ft1000_write_register(dev, ASIC_RESET_BIT,
+ FT1000_REG_RESET);
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_RESET);
+ i = 0;
+ while (tempword & ASIC_RESET_BIT) {
+ status = ft1000_read_register(dev, &tempword,
+ FT1000_REG_RESET);
+ usleep_range(9000, 11000);
+ i++;
+ if (i == 100)
+ break;
+ }
+ if (i == 100) {
+ pr_debug("Unable to reset ASIC\n");
+ return 0;
+ }
+ usleep_range(9000, 11000);
+ /* Program WMARK register */
+ status = ft1000_write_register(dev, 0x600,
+ FT1000_REG_MAG_WATERMARK);
+ /* clear ASIC reset doorbell */
+ status = ft1000_write_register(dev,
+ FT1000_DSP_ASIC_RESET,
+ FT1000_REG_DOORBELL);
+ usleep_range(9000, 11000);
+ } else if (tempword & FT1000_ASIC_RESET_REQ) {
+ pr_debug("FT1000_REG_DOORBELL message type: FT1000_ASIC_RESET_REQ\n");
+ /* clear ASIC reset request from DSP */
+ status = ft1000_write_register(dev,
+ FT1000_ASIC_RESET_REQ,
+ FT1000_REG_DOORBELL);
+ status = ft1000_write_register(dev, HOST_INTF_BE,
+ FT1000_REG_SUP_CTRL);
+ /* copy dsp session record from Adapter block */
+ status = ft1000_write_dpram32(dev, 0,
+ (u8 *)&info->DSPSess.Rec[0], 1024);
+ status = ft1000_write_register(dev, 0x600,
+ FT1000_REG_MAG_WATERMARK);
+ /* ring doorbell to tell DSP that
+ * ASIC is out of reset
+ * */
+ status = ft1000_write_register(dev,
+ FT1000_ASIC_RESET_DSP,
+ FT1000_REG_DOORBELL);
+ } else if (tempword & FT1000_DB_COND_RESET) {
+ pr_debug("FT1000_REG_DOORBELL message type: FT1000_DB_COND_RESET\n");
+ if (!dev->fAppMsgPend) {
+ /* Reset ASIC and DSP */
+ status = ft1000_read_dpram16(dev,
+ FT1000_MAG_DSP_TIMER0,
+ (u8 *)&info->DSP_TIME[0],
+ FT1000_MAG_DSP_TIMER0_INDX);
+ status = ft1000_read_dpram16(dev,
+ FT1000_MAG_DSP_TIMER1,
+ (u8 *)&info->DSP_TIME[1],
+ FT1000_MAG_DSP_TIMER1_INDX);
+ status = ft1000_read_dpram16(dev,
+ FT1000_MAG_DSP_TIMER2,
+ (u8 *)&info->DSP_TIME[2],
+ FT1000_MAG_DSP_TIMER2_INDX);
+ status = ft1000_read_dpram16(dev,
+ FT1000_MAG_DSP_TIMER3,
+ (u8 *)&info->DSP_TIME[3],
+ FT1000_MAG_DSP_TIMER3_INDX);
+ info->CardReady = 0;
+ info->DrvErrNum = DSP_CONDRESET_INFO;
+ pr_debug("DSP conditional reset requested\n");
+ info->ft1000_reset(dev->net);
+ } else {
+ dev->fProvComplete = false;
+ dev->fCondResetPend = true;
+ }
+ ft1000_write_register(dev, FT1000_DB_COND_RESET,
+ FT1000_REG_DOORBELL);
+ }
+ }
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff