UEAGLE: Eagle IV chipset support

Add support to newest chipset of eagle family. It is compatible with
older chipsets at USB level. However DSP firmware and CMVs
(Configuration and Management Variables) have different format of data
and are sent/received by different way.  

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 978 insertions, 213 deletions

diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index 29807d048b04..b5e8cbad223b 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -107,12 +107,42 @@
 #define uea_info(usb_dev, format,args...) \
         dev_info(&(usb_dev)->dev ,"[ueagle-atm] " format, ##args)
 
-struct uea_cmvs {
+struct intr_pkt;
+
+/* cmv's from firmware */
+struct uea_cmvs_v1 {
         u32 address;
         u16 offset;
         u32 data;
 } __attribute__ ((packed));
 
+struct uea_cmvs_v2 {
+        u32 group;
+        u32 address;
+        u32 offset;
+        u32 data;
+} __attribute__ ((packed));
+
+/* information about currently processed cmv */
+struct cmv_dsc_e1 {
+        u8 function;
+        u16 idx;
+        u32 address;
+        u16 offset;
+};
+
+struct cmv_dsc_e4 {
+        u16 function;
+        u16 offset;
+        u16 address;
+        u16 group;
+};
+
+union cmv_dsc {
+        struct cmv_dsc_e1 e1;
+        struct cmv_dsc_e4 e4;
+};
+
 struct uea_softc {
         struct usb_device *usb_dev;
         struct usbatm_data *usbatm;
@@ -127,8 +157,11 @@ struct uea_softc {
 
         struct task_struct *kthread;
         u32 data;
+        u32 data1;
         wait_queue_head_t cmv_ack_wait;
+
         int cmv_ack;
+        union cmv_dsc cmv_dsc;
 
         struct work_struct task;
         u16 pageno;
@@ -137,10 +170,10 @@ struct uea_softc {
         const struct firmware *dsp_firm;
         struct urb *urb_int;
 
-        u8 cmv_function;
-        u16 cmv_idx;
-        u32 cmv_address;
-        u16 cmv_offset;
+        void (*dispatch_cmv) (struct uea_softc *, struct intr_pkt *);
+        void (*schedule_load_page) (struct uea_softc *, struct intr_pkt *);
+        int (*stat) (struct uea_softc *);
+        int (*send_cmvs) (struct uea_softc *);
 
         /* keep in sync with eaglectl */
         struct uea_stats {
@@ -187,12 +220,12 @@ struct uea_softc {
 #define EAGLE_II_PID_PREFIRM    0x9022  /* Eagle II */
 #define EAGLE_II_PID_PSTFIRM    0x9021  /* Eagle II */
 
-/*
- *  Eagle III Pid
- */
 #define EAGLE_III_PID_PREFIRM   0x9032  /* Eagle III */
 #define EAGLE_III_PID_PSTFIRM   0x9031  /* Eagle III */
 
+#define EAGLE_IV_PID_PREFIRM    0x9042  /* Eagle IV */
+#define EAGLE_IV_PID_PSTFIRM    0x9041  /* Eagle IV */
+
 /*
  * USR USB IDs
  */
@@ -212,7 +245,8 @@ enum {
         ADI930 = 0,
         EAGLE_I,
         EAGLE_II,
-        EAGLE_III
+        EAGLE_III,
+        EAGLE_IV
 };
 
 /* macros for both struct usb_device_id and struct uea_softc */
@@ -228,8 +262,11 @@ enum {
 
 #define GET_STATUS(data) \
         ((data >> 8) & 0xf)
+
 #define IS_OPERATIONAL(sc) \
-        (GET_STATUS(sc->stats.phy.state) == 2)
+        ((UEA_CHIP_VERSION(sc) != EAGLE_IV) ? \
+        (GET_STATUS(sc->stats.phy.state) == 2) : \
+        (sc->stats.phy.state == 7))
 
 /*
  * Set of macros to handle unaligned data in the firmware blob.
@@ -259,7 +296,8 @@ enum {
 #define UEA_INTR_PIPE           0x04
 #define UEA_ISO_DATA_PIPE       0x08
 
-#define UEA_SET_BLOCK           0x0001
+#define UEA_E1_SET_BLOCK        0x0001
+#define UEA_E4_SET_BLOCK        0x002c
 #define UEA_SET_MODE            0x0003
 #define UEA_SET_2183_DATA       0x0004
 #define UEA_SET_TIMEOUT         0x0011
@@ -275,71 +313,179 @@ enum {
 #define UEA_MPTX_MAILBOX        (0x3fd6 | 0x4000)
 #define UEA_MPRX_MAILBOX        (0x3fdf | 0x4000)
 
-/* structure describing a block within a DSP page */
-struct block_info {
+/* block information in eagle4 dsp firmware  */
+struct block_index {
+        __le32 PageOffset;
+        __le32 NotLastBlock;
+        __le32 dummy;
+        __le32 PageSize;
+        __le32 PageAddress;
+        __le16 dummy1;
+        __le16 PageNumber;
+} __attribute__ ((packed));
+
+#define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000)
+#define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4)
+
+#define E4_L1_STRING_HEADER 0x10
+#define E4_MAX_PAGE_NUMBER 0x58
+#define E4_NO_SWAPPAGE_HEADERS 0x31
+
+/* l1_code is eagle4 dsp firmware format */
+struct l1_code {
+        u8 string_header[E4_L1_STRING_HEADER];
+        u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
+        struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
+        u8 code [0];
+} __attribute__ ((packed));
+
+/* structures describing a block within a DSP page */
+struct block_info_e1 {
         __le16 wHdr;
-#define UEA_BIHDR 0xabcd
         __le16 wAddress;
         __le16 wSize;
         __le16 wOvlOffset;
         __le16 wOvl;            /* overlay */
         __le16 wLast;
 } __attribute__ ((packed));
-#define BLOCK_INFO_SIZE 12
+#define E1_BLOCK_INFO_SIZE 12
+
+struct block_info_e4 {
+        __be16 wHdr;
+        __u8 bBootPage;
+        __u8 bPageNumber;
+        __be32 dwSize;
+        __be32 dwAddress;
+        __be16 wReserved;
+} __attribute__ ((packed));
+#define E4_BLOCK_INFO_SIZE 14
 
-/* structure representing a CMV (Configuration and Management Variable) */
-struct cmv {
-        __le16 wPreamble;
-#define PREAMBLE 0x535c
-        __u8 bDirection;
-#define MODEMTOHOST 0x01
-#define HOSTTOMODEM 0x10
-        __u8 bFunction;
-#define FUNCTION_TYPE(f)    ((f) >> 4)
-#define MEMACCESS       0x1
-#define ADSLDIRECTIVE   0x7
+#define UEA_BIHDR 0xabcd
+#define UEA_RESERVED 0xffff
+
+/* constants describing cmv type */
+#define E1_PREAMBLE 0x535c
+#define E1_MODEMTOHOST 0x01
+#define E1_HOSTTOMODEM 0x10
+
+#define E1_MEMACCESS 0x1
+#define E1_ADSLDIRECTIVE 0x7
+#define E1_FUNCTION_TYPE(f) ((f) >> 4)
+#define E1_FUNCTION_SUBTYPE(f) ((f) & 0x0f)
+
+#define E4_MEMACCESS 0
+#define E4_ADSLDIRECTIVE 0xf
+#define E4_FUNCTION_TYPE(f) ((f) >> 8)
+#define E4_FUNCTION_SIZE(f) ((f) & 0x0f)
+#define E4_FUNCTION_SUBTYPE(f) (((f) >> 4) & 0x0f)
 
-#define FUNCTION_SUBTYPE(f) ((f) & 0x0f)
 /* for MEMACCESS */
-#define REQUESTREAD     0x0
-#define REQUESTWRITE    0x1
-#define REPLYREAD       0x2
-#define REPLYWRITE      0x3
+#define E1_REQUESTREAD  0x0
+#define E1_REQUESTWRITE 0x1
+#define E1_REPLYREAD    0x2
+#define E1_REPLYWRITE   0x3
+
+#define E4_REQUESTREAD  0x0
+#define E4_REQUESTWRITE 0x4
+#define E4_REPLYREAD    (E4_REQUESTREAD | 1)
+#define E4_REPLYWRITE   (E4_REQUESTWRITE | 1)
+
 /* for ADSLDIRECTIVE */
-#define KERNELREADY     0x0
-#define MODEMREADY      0x1
+#define E1_KERNELREADY 0x0
+#define E1_MODEMREADY  0x1
 
-#define MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
-        __le16 wIndex;
-        __le32 dwSymbolicAddress;
-#define MAKESA(a, b, c, d)                                              \
+#define E4_KERNELREADY 0x0
+#define E4_MODEMREADY  0x1
+
+#define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
+#define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | ((st) & 0xf) << 4 | ((s) & 0xf))
+
+#define E1_MAKESA(a, b, c, d)                                           \
         (((c) & 0xff) << 24 |                                           \
          ((d) & 0xff) << 16 |                                           \
          ((a) & 0xff) << 8  |                                           \
          ((b) & 0xff))
-#define GETSA1(a) ((a >> 8) & 0xff)
-#define GETSA2(a) (a & 0xff)
-#define GETSA3(a) ((a >> 24) & 0xff)
-#define GETSA4(a) ((a >> 16) & 0xff)
-
-#define SA_CNTL MAKESA('C', 'N', 'T', 'L')
-#define SA_DIAG MAKESA('D', 'I', 'A', 'G')
-#define SA_INFO MAKESA('I', 'N', 'F', 'O')
-#define SA_OPTN MAKESA('O', 'P', 'T', 'N')
-#define SA_RATE MAKESA('R', 'A', 'T', 'E')
-#define SA_STAT MAKESA('S', 'T', 'A', 'T')
+
+#define E1_GETSA1(a) ((a >> 8) & 0xff)
+#define E1_GETSA2(a) (a & 0xff)
+#define E1_GETSA3(a) ((a >> 24) & 0xff)
+#define E1_GETSA4(a) ((a >> 16) & 0xff)
+
+#define E1_SA_CNTL E1_MAKESA('C', 'N', 'T', 'L')
+#define E1_SA_DIAG E1_MAKESA('D', 'I', 'A', 'G')
+#define E1_SA_INFO E1_MAKESA('I', 'N', 'F', 'O')
+#define E1_SA_OPTN E1_MAKESA('O', 'P', 'T', 'N')
+#define E1_SA_RATE E1_MAKESA('R', 'A', 'T', 'E')
+#define E1_SA_STAT E1_MAKESA('S', 'T', 'A', 'T')
+
+#define E4_SA_CNTL 1
+#define E4_SA_STAT 2
+#define E4_SA_INFO 3
+#define E4_SA_TEST 4
+#define E4_SA_OPTN 5
+#define E4_SA_RATE 6
+#define E4_SA_DIAG 7
+#define E4_SA_CNFG 8
+
+/* structures representing a CMV (Configuration and Management Variable) */
+struct cmv_e1 {
+        __le16 wPreamble;
+        __u8 bDirection;
+        __u8 bFunction;
+        __le16 wIndex;
+        __le32 dwSymbolicAddress;
         __le16 wOffsetAddress;
         __le32 dwData;
 } __attribute__ ((packed));
-#define CMV_SIZE 16
 
-/* structure representing swap information */
-struct swap_info {
+struct cmv_e4 {
+        __be16 wGroup;
+        __be16 wFunction;
+        __be16 wOffset;
+        __be16 wAddress;
+        __be32 dwData [6];
+} __attribute__ ((packed));
+
+/* structures representing swap information */
+struct swap_info_e1 {
         __u8 bSwapPageNo;
         __u8 bOvl;              /* overlay */
 } __attribute__ ((packed));
 
-/* structure representing interrupt data */
+struct swap_info_e4 {
+        __u8 bSwapPageNo;
+} __attribute__ ((packed));
+
+/* structures representing interrupt data */
+#define e1_bSwapPageNo  u.e1.s1.swapinfo.bSwapPageNo
+#define e1_bOvl         u.e1.s1.swapinfo.bOvl
+#define e4_bSwapPageNo  u.e4.s1.swapinfo.bSwapPageNo
+
+#define INT_LOADSWAPPAGE 0x0001
+#define INT_INCOMINGCMV  0x0002
+
+union intr_data_e1 {
+        struct {
+                struct swap_info_e1 swapinfo;
+                __le16 wDataSize;
+        } __attribute__ ((packed)) s1;
+        struct {
+                struct cmv_e1 cmv;
+                __le16 wDataSize;
+        } __attribute__ ((packed)) s2;
+} __attribute__ ((packed));
+
+union intr_data_e4 {
+        struct {
+                struct swap_info_e4 swapinfo;
+                __le16 wDataSize;
+        } __attribute__ ((packed)) s1;
+        struct {
+                struct cmv_e4 cmv;
+                __le16 wDataSize;
+        } __attribute__ ((packed)) s2;
+} __attribute__ ((packed));
+
 struct intr_pkt {
         __u8 bType;
         __u8 bNotification;
@@ -347,27 +493,18 @@ struct intr_pkt {
         __le16 wIndex;
         __le16 wLength;
         __le16 wInterrupt;
-#define INT_LOADSWAPPAGE 0x0001
-#define INT_INCOMINGCMV  0x0002
         union {
-                struct {
-                        struct swap_info swapinfo;
-                        __le16 wDataSize;
-                } __attribute__ ((packed)) s1;
-
-                struct {
-                        struct cmv cmv;
-                        __le16 wDataSize;
-                } __attribute__ ((packed)) s2;
-        } __attribute__ ((packed)) u;
-#define bSwapPageNo     u.s1.swapinfo.bSwapPageNo
-#define bOvl            u.s1.swapinfo.bOvl
+                union intr_data_e1 e1;
+                union intr_data_e4 e4;
+        } u;
 } __attribute__ ((packed));
-#define INTR_PKT_SIZE 28
+
+#define E1_INTR_PKT_SIZE 28
+#define E4_INTR_PKT_SIZE 64
 
 static struct usb_driver uea_driver;
 static DEFINE_MUTEX(uea_mutex);
-static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III"};
+static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III", "Eagle IV"};
 
 static int modem_index;
 static unsigned int debug;
@@ -519,6 +656,9 @@ static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
         case EAGLE_III:
                 fw_name = FW_DIR "eagleIII.fw";
                 break;
+        case EAGLE_IV:
+                fw_name = FW_DIR "eagleIV.fw";
+                break;
         }
 
         ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware);
@@ -537,7 +677,7 @@ static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
 /*
  * Make sure that the DSP code provided is safe to use.
  */
-static int check_dsp(u8 *dsp, unsigned int len)
+static int check_dsp_e1(u8 *dsp, unsigned int len)
 {
         u8 pagecount, blockcount;
         u16 blocksize;
@@ -588,6 +728,51 @@ static int check_dsp(u8 *dsp, unsigned int len)
         return 0;
 }
 
+static int check_dsp_e4(u8 *dsp, int len)
+{
+        int i;
+        struct l1_code *p = (struct l1_code *) dsp;
+        unsigned int sum = p->code - dsp;
+
+        if (len < sum)
+                return 1;
+
+        if (strcmp("STRATIPHY ANEXA", p->string_header) != 0 &&
+            strcmp("STRATIPHY ANEXB", p->string_header) != 0)
+                return 1;
+
+        for (i = 0; i < E4_MAX_PAGE_NUMBER; i++) {
+                struct block_index *blockidx;
+                u8 blockno = p->page_number_to_block_index[i];
+                if (blockno >= E4_NO_SWAPPAGE_HEADERS)
+                        continue;
+
+                do {
+                        u64 l;
+
+                        if (blockno >= E4_NO_SWAPPAGE_HEADERS)
+                                return 1;
+
+                        blockidx = &p->page_header[blockno++];
+                        if ((u8 *)(blockidx + 1) - dsp  >= len)
+                                return 1;
+
+                        if (le16_to_cpu(blockidx->PageNumber) != i)
+                                return 1;
+
+                        l = E4_PAGE_BYTES(blockidx->PageSize);
+                        sum += l;
+                        l += le32_to_cpu(blockidx->PageOffset);
+                        if (l > len)
+                                return 1;
+
+                /* zero is zero regardless endianes */
+                } while (blockidx->NotLastBlock);
+        }
+
+        return (sum == len) ? 0 : 1;
+}
+
 /*
  * send data to the idma pipe
  * */
@@ -624,7 +809,12 @@ static int request_dsp(struct uea_softc *sc)
         int ret;
         char *dsp_name;
 
-        if (UEA_CHIP_VERSION(sc) == ADI930) {
+        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
+                if (IS_ISDN(sc->usb_dev))
+                        dsp_name = FW_DIR "DSP4i.bin";
+                else
+                        dsp_name = FW_DIR "DSP4p.bin";
+        } else if (UEA_CHIP_VERSION(sc) == ADI930) {
                 if (IS_ISDN(sc->usb_dev))
                         dsp_name = FW_DIR "DSP9i.bin";
                 else
@@ -640,11 +830,16 @@ static int request_dsp(struct uea_softc *sc)
         if (ret < 0) {
                 uea_err(INS_TO_USBDEV(sc),
                        "requesting firmware %s failed with error %d\n",
-                       dsp_name, ret);
+                        dsp_name, ret);
                 return ret;
         }
 
-        if (check_dsp(sc->dsp_firm->data, sc->dsp_firm->size)) {
+        if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
+                ret = check_dsp_e4(sc->dsp_firm->data, sc->dsp_firm->size);
+        else
+                ret = check_dsp_e1(sc->dsp_firm->data, sc->dsp_firm->size);
+
+        if (ret) {
                 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
                        dsp_name);
                 release_firmware(sc->dsp_firm);
@@ -658,12 +853,12 @@ static int request_dsp(struct uea_softc *sc)
 /*
  * The uea_load_page() function must be called within a process context
  */
-static void uea_load_page(struct work_struct *work)
+static void uea_load_page_e1(struct work_struct *work)
 {
         struct uea_softc *sc = container_of(work, struct uea_softc, task);
         u16 pageno = sc->pageno;
         u16 ovl = sc->ovl;
-        struct block_info bi;
+        struct block_info_e1 bi;
 
         u8 *p;
         u8 pagecount, blockcount;
@@ -716,7 +911,7 @@ static void uea_load_page(struct work_struct *work)
                 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
 
                 /* send block info through the IDMA pipe */
-                if (uea_idma_write(sc, &bi, BLOCK_INFO_SIZE))
+                if (uea_idma_write(sc, &bi, E1_BLOCK_INFO_SIZE))
                         goto bad2;
 
                 /* send block data through the IDMA pipe */
@@ -735,6 +930,103 @@ bad1:
         uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
 }
 
+static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
+{
+        struct block_info_e4 bi;
+        struct block_index *blockidx;
+        struct l1_code *p = (struct l1_code *) sc->dsp_firm->data;
+        u8 blockno = p->page_number_to_block_index[pageno];
+
+        bi.wHdr = cpu_to_be16(UEA_BIHDR);
+        bi.bBootPage = boot;
+        bi.bPageNumber = pageno;
+        bi.wReserved = cpu_to_be16(UEA_RESERVED);
+
+        do {
+                u8 *blockoffset;
+                unsigned int blocksize;
+
+                blockidx = &p->page_header[blockno];
+                blocksize = E4_PAGE_BYTES(blockidx->PageSize);
+                blockoffset = sc->dsp_firm->data + le32_to_cpu(blockidx->PageOffset);
+
+                bi.dwSize = cpu_to_be32(blocksize);
+                bi.dwAddress = swab32(blockidx->PageAddress);
+
+                uea_dbg(INS_TO_USBDEV(sc),
+                       "sending block %u for DSP page %u size %u adress %x\n",
+                       blockno, pageno, blocksize, le32_to_cpu(blockidx->PageAddress));
+
+                /* send block info through the IDMA pipe */
+                if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
+                        goto bad;
+
+                /* send block data through the IDMA pipe */
+                if (uea_idma_write(sc, blockoffset, blocksize))
+                        goto bad;
+
+                blockno++;
+        } while (blockidx->NotLastBlock);
+
+        return;
+
+bad:
+        uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", blockno);
+        return;
+}
+
+static void uea_load_page_e4(struct work_struct *work)
+{
+        struct uea_softc *sc = container_of(work, struct uea_softc, task);
+        u8 pageno = sc->pageno;
+        int i;
+        struct block_info_e4 bi;
+        struct l1_code *p;
+
+        uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);
+
+        /* reload firmware when reboot start and it's loaded already */
+        if (pageno == 0 && sc->dsp_firm) {
+                release_firmware(sc->dsp_firm);
+                sc->dsp_firm = NULL;
+        }
+
+        if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
+                return;
+
+        p = (struct l1_code *) sc->dsp_firm->data;
+        if (pageno >= p->page_header[0].PageNumber) {
+                uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
+                return;
+        }
+
+        if (pageno != 0) {
+                __uea_load_page_e4(sc, pageno, 0);
+                return;
+        }
+
+        uea_dbg(INS_TO_USBDEV(sc),
+               "sending Main DSP page %u\n", p->page_header[0].PageNumber);
+
+        for (i = 0; i < le16_to_cpu(p->page_header[0].PageNumber); i++) {
+                if (E4_IS_BOOT_PAGE(p->page_header[i].PageSize))
+                        __uea_load_page_e4(sc, i, 1);
+        }
+
+        uea_dbg(INS_TO_USBDEV(sc),"sending start bi\n");
+
+        bi.wHdr = cpu_to_be16(UEA_BIHDR);
+        bi.bBootPage = 0;
+        bi.bPageNumber = 0xff;
+        bi.wReserved = cpu_to_be16(UEA_RESERVED);
+        bi.dwSize = cpu_to_be32(E4_PAGE_BYTES(p->page_header[0].PageSize));
+        bi.dwAddress = swab32(p->page_header[0].PageAddress);
+
+        /* send block info through the IDMA pipe */
+        if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
+                uea_err(INS_TO_USBDEV(sc), "sending DSP start bi failed\n");
+}
+
 static inline void wake_up_cmv_ack(struct uea_softc *sc)
 {
         BUG_ON(sc->cmv_ack);
@@ -792,33 +1084,68 @@ static int uea_request(struct uea_softc *sc,
         return 0;
 }
 
-static int uea_cmv(struct uea_softc *sc,
+static int uea_cmv_e1(struct uea_softc *sc,
                 u8 function, u32 address, u16 offset, u32 data)
 {
-        struct cmv cmv;
+        struct cmv_e1 cmv;
         int ret;
 
         uea_enters(INS_TO_USBDEV(sc));
         uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
                         "offset : 0x%04x, data : 0x%08x\n",
-                        FUNCTION_TYPE(function), FUNCTION_SUBTYPE(function),
-                        GETSA1(address), GETSA2(address), GETSA3(address),
-                        GETSA4(address), offset, data);
+                        E1_FUNCTION_TYPE(function), E1_FUNCTION_SUBTYPE(function),
+                        E1_GETSA1(address), E1_GETSA2(address), E1_GETSA3(address),
+                        E1_GETSA4(address), offset, data);
+
         /* we send a request, but we expect a reply */
-        sc->cmv_function = function | 0x2;
-        sc->cmv_idx++;
-        sc->cmv_address = address;
-        sc->cmv_offset = offset;
+        sc->cmv_dsc.e1.function = function | 0x2;
+        sc->cmv_dsc.e1.idx++;
+        sc->cmv_dsc.e1.address = address;
+        sc->cmv_dsc.e1.offset = offset;
 
-        cmv.wPreamble = cpu_to_le16(PREAMBLE);
-        cmv.bDirection = HOSTTOMODEM;
+        cmv.wPreamble = cpu_to_le16(E1_PREAMBLE);
+        cmv.bDirection = E1_HOSTTOMODEM;
         cmv.bFunction = function;
-        cmv.wIndex = cpu_to_le16(sc->cmv_idx);
+        cmv.wIndex = cpu_to_le16(sc->cmv_dsc.e1.idx);
         put_unaligned(cpu_to_le32(address), &cmv.dwSymbolicAddress);
         cmv.wOffsetAddress = cpu_to_le16(offset);
         put_unaligned(cpu_to_le32(data >> 16 | data << 16), &cmv.dwData);
 
-        ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv);
+        ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START, sizeof(cmv), &cmv);
+        if (ret < 0)
+                return ret;
+        ret = wait_cmv_ack(sc);
+        uea_leaves(INS_TO_USBDEV(sc));
+        return ret;
+}
+
+static int uea_cmv_e4(struct uea_softc *sc,
+                u16 function, u16 group, u16 address, u16 offset, u32 data)
+{
+        struct cmv_e4 cmv;
+        int ret;
+
+        uea_enters(INS_TO_USBDEV(sc));
+        memset(&cmv, 0, sizeof(cmv));
+
+        uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Group : 0x%04x, "
+                 "Address : 0x%04x, offset : 0x%04x, data : 0x%08x\n",
+                 E4_FUNCTION_TYPE(function), E4_FUNCTION_SUBTYPE(function),
+                 group, address, offset, data);
+
+        /* we send a request, but we expect a reply */
+        sc->cmv_dsc.e4.function = function | (0x1 << 4);
+        sc->cmv_dsc.e4.offset = offset;
+        sc->cmv_dsc.e4.address = address;
+        sc->cmv_dsc.e4.group = group;
+
+        cmv.wFunction = cpu_to_be16(function);
+        cmv.wGroup = cpu_to_be16(group);
+        cmv.wAddress = cpu_to_be16(address);
+        cmv.wOffset = cpu_to_be16(offset);
+        cmv.dwData[0] = cpu_to_be32(data);
+
+        ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START, sizeof(cmv), &cmv);
         if (ret < 0)
                 return ret;
         ret = wait_cmv_ack(sc);
@@ -826,10 +1153,10 @@ static int uea_cmv(struct uea_softc *sc,
         return ret;
 }
 
-static inline int uea_read_cmv(struct uea_softc *sc,
+static inline int uea_read_cmv_e1(struct uea_softc *sc,
                 u32 address, u16 offset, u32 *data)
 {
-        int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTREAD),
+        int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTREAD),
                           address, offset, 0);
         if (ret < 0)
                 uea_err(INS_TO_USBDEV(sc),
@@ -840,10 +1167,27 @@ static inline int uea_read_cmv(struct uea_softc *sc,
         return ret;
 }
 
-static inline int uea_write_cmv(struct uea_softc *sc,
+static inline int uea_read_cmv_e4(struct uea_softc *sc,
+                u8 size, u16 group, u16 address, u16 offset, u32 *data)
+{
+        int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS, E4_REQUESTREAD, size),
+                          group, address, offset, 0);
+        if (ret < 0)
+                uea_err(INS_TO_USBDEV(sc),
+                        "reading cmv failed with error %d\n", ret);
+        else {
+                *data = sc->data;
+                /* size is in 16-bit word quantities */
+                if (size > 2)
+                        *(data + 1) = sc->data1;
+        }
+        return ret;
+}
+
+static inline int uea_write_cmv_e1(struct uea_softc *sc,
                 u32 address, u16 offset, u32 data)
 {
-        int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTWRITE),
+        int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTWRITE),
                           address, offset, data);
         if (ret < 0)
                 uea_err(INS_TO_USBDEV(sc),
@@ -852,12 +1196,48 @@ static inline int uea_write_cmv(struct uea_softc *sc,
         return ret;
 }
 
+static inline int uea_write_cmv_e4(struct uea_softc *sc,
+                u8 size, u16 group, u16 address, u16 offset, u32 data)
+{
+        int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS, E4_REQUESTWRITE, size),
+                          group, address, offset, data);
+        if (ret < 0)
+                uea_err(INS_TO_USBDEV(sc),
+                        "writing cmv failed with error %d\n", ret);
+
+        return ret;
+}
+
+static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
+{
+        int ret;
+        u16 timeout;
+
+        /* in bulk mode the modem have problem with high rate
+         * changing internal timing could improve things, but the
+         * value is misterious.
+         * ADI930 don't support it (-EPIPE error).
+         */
+
+        if (UEA_CHIP_VERSION(sc) == ADI930 ||
+            use_iso[sc->modem_index] > 0 ||
+            sc->stats.phy.dsrate == dsrate)
+                return;
+
+        /* Original timming (1Mbit/s) from ADI (used in windows driver) */
+        timeout = (dsrate <= 1024*1024) ? 0 : 1;
+        ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
+        uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n",
+                 timeout,  ret < 0 ? " failed" : "");
+
+}
+
 /*
  * Monitor the modem and update the stat
  * return 0 if everything is ok
  * return < 0 if an error occurs (-EAGAIN reboot needed)
  */
-static int uea_stat(struct uea_softc *sc)
+static int uea_stat_e1(struct uea_softc *sc)
 {
         u32 data;
         int ret;
@@ -865,7 +1245,7 @@ static int uea_stat(struct uea_softc *sc)
         uea_enters(INS_TO_USBDEV(sc));
         data = sc->stats.phy.state;
 
-        ret = uea_read_cmv(sc, SA_STAT, 0, &sc->stats.phy.state);
+        ret = uea_read_cmv_e1(sc, E1_SA_STAT, 0, &sc->stats.phy.state);
         if (ret < 0)
                 return ret;
 
@@ -885,7 +1265,7 @@ static int uea_stat(struct uea_softc *sc)
 
         case 3:         /* fail ... */
                 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
-                                " (may be try other cmv/dsp)\n");
+                                        " (may be try other cmv/dsp)\n");
                 return -EAGAIN;
 
         case 4 ... 6:   /* test state */
@@ -923,7 +1303,7 @@ static int uea_stat(struct uea_softc *sc)
         /* wake up processes waiting for synchronization */
         wake_up(&sc->sync_q);
 
-        ret = uea_read_cmv(sc, SA_DIAG, 2, &sc->stats.phy.flags);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 2, &sc->stats.phy.flags);
         if (ret < 0)
                 return ret;
         sc->stats.phy.mflags |= sc->stats.phy.flags;
@@ -937,105 +1317,223 @@ static int uea_stat(struct uea_softc *sc)
                 return 0;
         }
 
-        ret = uea_read_cmv(sc, SA_RATE, 0, &data);
+        ret = uea_read_cmv_e1(sc, E1_SA_RATE, 0, &data);
         if (ret < 0)
                 return ret;
 
-        /* in bulk mode the modem have problem with high rate
-         * changing internal timing could improve things, but the
-         * value is misterious.
-         * ADI930 don't support it (-EPIPE error).
-         */
-        if (UEA_CHIP_VERSION(sc) != ADI930
-                    && !use_iso[sc->modem_index]
-                    && sc->stats.phy.dsrate != (data >> 16) * 32) {
-                /* Original timming from ADI(used in windows driver)
-                 * 0x20ffff>>16 * 32 = 32 * 32 = 1Mbits
-                 */
-                u16 timeout = (data <= 0x20ffff) ? 0 : 1;
-                ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
-                uea_info(INS_TO_USBDEV(sc),
-                                "setting new timeout %d%s\n", timeout,
-                                ret < 0?" failed":"");
-        }
+        uea_set_bulk_timeout(sc, (data >> 16) * 32);
         sc->stats.phy.dsrate = (data >> 16) * 32;
         sc->stats.phy.usrate = (data & 0xffff) * 32;
         UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
 
-        ret = uea_read_cmv(sc, SA_DIAG, 23, &data);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 23, &data);
         if (ret < 0)
                 return ret;
         sc->stats.phy.dsattenuation = (data & 0xff) / 2;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 47, &data);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 47, &data);
         if (ret < 0)
                 return ret;
         sc->stats.phy.usattenuation = (data & 0xff) / 2;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 25, &sc->stats.phy.dsmargin);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 25, &sc->stats.phy.dsmargin);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 49, &sc->stats.phy.usmargin);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 49, &sc->stats.phy.usmargin);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 51, &sc->stats.phy.rxflow);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 51, &sc->stats.phy.rxflow);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 52, &sc->stats.phy.txflow);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 52, &sc->stats.phy.txflow);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 54, &sc->stats.phy.dsunc);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 54, &sc->stats.phy.dsunc);
         if (ret < 0)
                 return ret;
 
         /* only for atu-c */
-        ret = uea_read_cmv(sc, SA_DIAG, 58, &sc->stats.phy.usunc);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 58, &sc->stats.phy.usunc);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_DIAG, 53, &sc->stats.phy.dscorr);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 53, &sc->stats.phy.dscorr);
         if (ret < 0)
                 return ret;
 
         /* only for atu-c */
-        ret = uea_read_cmv(sc, SA_DIAG, 57, &sc->stats.phy.uscorr);
+        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 57, &sc->stats.phy.uscorr);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_INFO, 8, &sc->stats.phy.vidco);
+        ret = uea_read_cmv_e1(sc, E1_SA_INFO, 8, &sc->stats.phy.vidco);
         if (ret < 0)
                 return ret;
 
-        ret = uea_read_cmv(sc, SA_INFO, 13, &sc->stats.phy.vidcpe);
+        ret = uea_read_cmv_e1(sc, E1_SA_INFO, 13, &sc->stats.phy.vidcpe);
         if (ret < 0)
                 return ret;
 
         return 0;
 }
 
-static int request_cmvs(struct uea_softc *sc,
-                 struct uea_cmvs **cmvs, const struct firmware **fw)
+static int uea_stat_e4(struct uea_softc *sc)
 {
-        int ret, size;
-        u8 *data;
+        u32 data;
+        u32 tmp_arr[2];
+        int ret;
+
+        uea_enters(INS_TO_USBDEV(sc));
+        data = sc->stats.phy.state;
+
+        /* XXX only need to be done before operationnal... */
+        ret = uea_read_cmv_e4(sc, 1, E4_SA_STAT, 0, 0, &sc->stats.phy.state);
+        if (ret < 0)
+                return ret;
+
+        switch (sc->stats.phy.state) {
+                case 0x0:       /* not yet synchronized */
+                case 0x1:
+                case 0x3:
+                case 0x4:
+                        uea_dbg(INS_TO_USBDEV(sc), "modem not yet synchronized\n");
+                        return 0;
+                case 0x5:       /* initialization */
+                case 0x6:
+                case 0x9:
+                case 0xa:
+                        uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
+                        return 0;
+                case 0x2:       /* fail ... */
+                        uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
+                                        " (may be try other cmv/dsp)\n");
+                        return -EAGAIN;
+                case 0x7:       /* operational */
+                        break;
+                default:
+                        uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n", sc->stats.phy.state);
+                        return 0;
+        }
+
+        if (data != 7) {
+                uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
+                uea_info(INS_TO_USBDEV(sc), "modem operational\n");
+
+                /* release the dsp firmware as it is not needed until
+                 * the next failure
+                 */
+                if (sc->dsp_firm) {
+                        release_firmware(sc->dsp_firm);
+                        sc->dsp_firm = NULL;
+                }
+        }
+
+        /* always update it as atm layer could not be init when we switch to
+         * operational state
+         */
+        UPDATE_ATM_STAT(signal, ATM_PHY_SIG_FOUND);
+
+        /* wake up processes waiting for synchronization */
+        wake_up(&sc->sync_q);
+
+        /* TODO improve this state machine :
+         * we need some CMV info : what they do and their unit
+         * we should find the equivalent of eagle3- CMV
+         */
+        /* check flags */
+        ret = uea_read_cmv_e4(sc, 1, E4_SA_DIAG, 0, 0, &sc->stats.phy.flags);
+        if (ret < 0)
+                return ret;
+        sc->stats.phy.mflags |= sc->stats.phy.flags;
+
+        /* in case of a flags ( for example delineation LOSS (& 0x10)),
+         * we check the status again in order to detect the failure earlier
+         */
+        if (sc->stats.phy.flags) {
+                uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
+                       sc->stats.phy.flags);
+                if (sc->stats.phy.flags & 1) //delineation LOSS
+                        return -EAGAIN;
+                if (sc->stats.phy.flags & 0x4000) //Reset Flag
+                        return -EAGAIN;
+                return 0;
+        }
+
+        /* rate data may be in upper or lower half of 64 bit word, strange */
+        ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 0, 0, tmp_arr);
+        if (ret < 0)
+                return ret;
+        data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
+        sc->stats.phy.usrate = data / 1000;
+
+        ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 1, 0, tmp_arr);
+        if (ret < 0)
+                return ret;
+        data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
+        uea_set_bulk_timeout(sc, data / 1000);
+        sc->stats.phy.dsrate = data / 1000;
+        UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
+
+        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 1, &data);
+        if (ret < 0)
+                return ret;
+        sc->stats.phy.dsattenuation = data / 10;
+
+        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 1, &data);
+        if (ret < 0)
+                return ret;
+        sc->stats.phy.usattenuation = data / 10;
+
+        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 3, &data);
+        if (ret < 0)
+                return ret;
+        sc->stats.phy.dsmargin = data / 2;
+
+        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 3, &data);
+        if (ret < 0)
+                return ret;
+        sc->stats.phy.usmargin = data / 10;
+
+        return 0;
+}
+
+static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
+{
+        char file_arr[] = "CMVxy.bin";
         char *file;
-        char cmv_name[FIRMWARE_NAME_MAX]; /* 30 bytes stack variable */
 
+        /* set proper name corresponding modem version and line type */
         if (cmv_file[sc->modem_index] == NULL) {
                 if (UEA_CHIP_VERSION(sc) == ADI930)
-                        file = (IS_ISDN(sc->usb_dev)) ? "CMV9i.bin" : "CMV9p.bin";
+                        file_arr[3] = '9';
+                else if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
+                        file_arr[3] = '4';
                 else
-                        file = (IS_ISDN(sc->usb_dev)) ? "CMVei.bin" : "CMVep.bin";
+                        file_arr[3] = 'e';
+
+                file_arr[4] = IS_ISDN(sc->usb_dev) ? 'i' : 'p';
+                file = file_arr;
         } else
                 file = cmv_file[sc->modem_index];
 
         strcpy(cmv_name, FW_DIR);
-        strlcat(cmv_name, file, sizeof(cmv_name));
+        strlcat(cmv_name, file, FIRMWARE_NAME_MAX);
+        if (ver == 2)
+                strlcat(cmv_name, ".v2", FIRMWARE_NAME_MAX);
+}
+
+static int request_cmvs_old(struct uea_softc *sc,
+                 void **cmvs, const struct firmware **fw)
+{
+        int ret, size;
+        u8 *data;
+        char cmv_name[FIRMWARE_NAME_MAX]; /* 30 bytes stack variable */
 
+        cmvs_file_name(sc, cmv_name, 1);
         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
         if (ret < 0) {
                 uea_err(INS_TO_USBDEV(sc),
@@ -1045,16 +1543,197 @@ static int request_cmvs(struct uea_softc *sc,
         }
 
         data = (u8 *) (*fw)->data;
-        size = *data * sizeof(struct uea_cmvs) + 1;
-        if (size != (*fw)->size) {
-                uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
-                       cmv_name);
-                release_firmware(*fw);
-                return -EILSEQ;
+        size = (*fw)->size;
+        if (size < 1)
+                goto err_fw_corrupted;
+
+        if (size != *data * sizeof(struct uea_cmvs_v1) + 1)
+                goto err_fw_corrupted;
+
+        *cmvs = (void *)(data + 1);
+        return *data;
+
+err_fw_corrupted:
+        uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
+        release_firmware(*fw);
+        return -EILSEQ;
+}
+
+static int request_cmvs(struct uea_softc *sc,
+                 void **cmvs, const struct firmware **fw, int *ver)
+{
+        int ret, size;
+        u32 crc;
+        u8 *data;
+        char cmv_name[FIRMWARE_NAME_MAX]; /* 30 bytes stack variable */
+
+        cmvs_file_name(sc, cmv_name, 2);
+        ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
+        if (ret < 0) {
+                /* if caller can handle old version, try to provide it */
+                if (*ver == 1) {
+                        uea_warn(INS_TO_USBDEV(sc), "requesting firmware %s failed, "
+                                "try to get older cmvs\n", cmv_name);
+                        return request_cmvs_old(sc, cmvs, fw);
+                }
+                uea_err(INS_TO_USBDEV(sc),
+                       "requesting firmware %s failed with error %d\n",
+                       cmv_name, ret);
+                return ret;
+        }
+
+        size = (*fw)->size;
+        data = (u8 *) (*fw)->data;
+        if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
+                if (*ver == 1) {
+                        uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted, "
+                                "try to get older cmvs\n", cmv_name);
+                        release_firmware(*fw);
+                        return request_cmvs_old(sc, cmvs, fw);
+                }
+                goto err_fw_corrupted;
         }
 
-        *cmvs = (struct uea_cmvs *)(data + 1);
+        *ver = 2;
+
+        data += 4;
+        size -= 4;
+        if (size < 5)
+                goto err_fw_corrupted;
+
+        crc = FW_GET_LONG(data);
+        data += 4;
+        size -= 4;
+        if (crc32_be(0, data, size) != crc)
+                goto err_fw_corrupted;
+
+        if (size != *data * sizeof(struct uea_cmvs_v2) + 1)
+                goto err_fw_corrupted;
+
+        *cmvs = (void *) (data + 1);
         return *data;
+
+err_fw_corrupted:
+        uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
+        release_firmware(*fw);
+        return -EILSEQ;
+}
+
+static int uea_send_cmvs_e1(struct uea_softc *sc)
+{
+        int i, ret, len;
+        void *cmvs_ptr;
+        const struct firmware *cmvs_fw;
+        int ver = 1; // we can handle v1 cmv firmware version;
+
+        /* Enter in R-IDLE (cmv) until instructed otherwise */
+        ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
+        if (ret < 0)
+                return ret;
+
+        /* Dump firmware version */
+        ret = uea_read_cmv_e1(sc, E1_SA_INFO, 10, &sc->stats.phy.firmid);
+        if (ret < 0)
+                return ret;
+        uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
+                        sc->stats.phy.firmid);
+
+        /* get options */
+        ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
+        if (ret < 0)
+                return ret;
+
+        /* send options */
+        if (ver == 1) {
+                struct uea_cmvs_v1 *cmvs_v1 = cmvs_ptr;
+
+                uea_warn(INS_TO_USBDEV(sc), "use deprecated cmvs version, "
+                        "please update your firmware\n");
+
+                for (i = 0; i < len; i++) {
+                        ret = uea_write_cmv_e1(sc, FW_GET_LONG(&cmvs_v1[i].address),
+                                                FW_GET_WORD(&cmvs_v1[i].offset),
+                                                FW_GET_LONG(&cmvs_v1[i].data));
+                        if (ret < 0)
+                                goto out;
+                }
+        } else if (ver == 2) {
+                struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
+
+                for (i = 0; i < len; i++) {
+                        ret = uea_write_cmv_e1(sc, FW_GET_LONG(&cmvs_v2[i].address),
+                                                (u16) FW_GET_LONG(&cmvs_v2[i].offset),
+                                                FW_GET_LONG(&cmvs_v2[i].data));
+                        if (ret < 0)
+                                goto out;
+                }
+        } else {
+                /* This realy should not happen */
+                uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
+                goto out;
+        }
+
+        /* Enter in R-ACT-REQ */
+        ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
+        uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
+        uea_info(INS_TO_USBDEV(sc), "modem started, waiting synchronization...\n");
+out:
+        release_firmware(cmvs_fw);
+        return ret;
+}
+
+static int uea_send_cmvs_e4(struct uea_softc *sc)
+{
+        int i, ret, len;
+        void *cmvs_ptr;
+        const struct firmware *cmvs_fw;
+        int ver = 2; // we can only handle v2 cmv firmware version;
+
+        /* Enter in R-IDLE (cmv) until instructed otherwise */
+        ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
+        if (ret < 0)
+                return ret;
+
+        /* Dump firmware version */
+        /* XXX don't read the 3th byte as it is always 6 */
+        ret = uea_read_cmv_e4(sc, 2, E4_SA_INFO, 55, 0, &sc->stats.phy.firmid);
+        if (ret < 0)
+                return ret;
+        uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
+                        sc->stats.phy.firmid);
+
+
+        /* get options */
+        ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
+        if (ret < 0)
+                return ret;
+
+        /* send options */
+        if (ver == 2) {
+                struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
+
+                for (i = 0; i < len; i++) {
+                        ret = uea_write_cmv_e4(sc, 1,
+                                                FW_GET_LONG(&cmvs_v2[i].group),
+                                                FW_GET_LONG(&cmvs_v2[i].address),
+                                                FW_GET_LONG(&cmvs_v2[i].offset),
+                                                FW_GET_LONG(&cmvs_v2[i].data));
+                        if (ret < 0)
+                                goto out;
+                }
+        } else {
+                /* This realy should not happen */
+                uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
+                goto out;
+        }
+
+        /* Enter in R-ACT-REQ */
+        ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
+        uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
+        uea_info(INS_TO_USBDEV(sc), "modem started, waiting synchronization...\n");
+out:
+        release_firmware(cmvs_fw);
+        return ret;
 }
 
 /* Start boot post firmware modem:
@@ -1066,9 +1745,7 @@ static int request_cmvs(struct uea_softc *sc,
 static int uea_start_reset(struct uea_softc *sc)
 {
         u16 zero = 0;   /* ;-) */
-        int i, len, ret;
-        struct uea_cmvs *cmvs;
-        const struct firmware *cmvs_fw;
+        int ret;
 
         uea_enters(INS_TO_USBDEV(sc));
         uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
@@ -1098,13 +1775,20 @@ static int uea_start_reset(struct uea_softc *sc)
         /* leave reset mode */
         uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
 
-        /* clear tx and rx mailboxes */
-        uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
-        uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
-        uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
+        if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
+                /* clear tx and rx mailboxes */
+                uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
+                uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
+                uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
+        }
 
         msleep(1000);
-        sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY);
+
+        if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
+                sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE, E4_MODEMREADY, 1);
+        else
+                sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE, E1_MODEMREADY);
+
         /* demask interrupt */
         sc->booting = 0;
 
@@ -1120,38 +1804,10 @@ static int uea_start_reset(struct uea_softc *sc)
 
         uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");
 
-        /* Enter in R-IDLE (cmv) until instructed otherwise */
-        ret = uea_write_cmv(sc, SA_CNTL, 0, 1);
-        if (ret < 0)
-                return ret;
-
-        /* Dump firmware version */
-        ret = uea_read_cmv(sc, SA_INFO, 10, &sc->stats.phy.firmid);
-        if (ret < 0)
-                return ret;
-        uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
-                        sc->stats.phy.firmid);
-
-        /* get options */
-        ret = len = request_cmvs(sc, &cmvs, &cmvs_fw);
+        ret = sc->send_cmvs(sc);
         if (ret < 0)
                 return ret;
 
-        /* send options */
-        for (i = 0; i < len; i++) {
-                ret = uea_write_cmv(sc, FW_GET_LONG(&cmvs[i].address),
-                                        FW_GET_WORD(&cmvs[i].offset),
-                                        FW_GET_LONG(&cmvs[i].data));
-                if (ret < 0)
-                        goto out;
-        }
-        /* Enter in R-ACT-REQ */
-        ret = uea_write_cmv(sc, SA_CNTL, 0, 2);
-        uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
-        uea_info(INS_TO_USBDEV(sc), "Modem started, "
-                "waiting synchronization\n");
-out:
-        release_firmware(cmvs_fw);
         sc->reset = 0;
         uea_leaves(INS_TO_USBDEV(sc));
         return ret;
@@ -1174,7 +1830,7 @@ static int uea_kthread(void *data)
                 if (ret < 0 || sc->reset)
                         ret = uea_start_reset(sc);
                 if (!ret)
-                        ret = uea_stat(sc);
+                        ret = sc->stat(sc);
                 if (ret != -EAGAIN)
                         msleep_interruptible(1000);
                 if (try_to_freeze())
@@ -1234,7 +1890,6 @@ static int load_XILINX_firmware(struct uea_softc *sc)
         if (ret < 0)
                 uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret);
 
-
 err1:
         release_firmware(fw_entry);
 err0:
@@ -1243,40 +1898,41 @@ err0:
 }
 
 /* The modem send us an ack. First with check if it right */
-static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
+static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
 {
+        struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
+        struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;
+
         uea_enters(INS_TO_USBDEV(sc));
-        if (le16_to_cpu(cmv->wPreamble) != PREAMBLE)
+        if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
                 goto bad1;
 
-        if (cmv->bDirection != MODEMTOHOST)
+        if (cmv->bDirection != E1_MODEMTOHOST)
                 goto bad1;
 
         /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
          * the first MEMACESS cmv. Ignore it...
          */
-        if (cmv->bFunction != sc->cmv_function) {
+        if (cmv->bFunction != dsc->function) {
                 if (UEA_CHIP_VERSION(sc) == ADI930
-                                && cmv->bFunction ==  MAKEFUNCTION(2, 2)) {
-                        cmv->wIndex = cpu_to_le16(sc->cmv_idx);
-                        put_unaligned(cpu_to_le32(sc->cmv_address), &cmv->dwSymbolicAddress);
-                        cmv->wOffsetAddress = cpu_to_le16(sc->cmv_offset);
-                }
-                else
+                                && cmv->bFunction ==  E1_MAKEFUNCTION(2, 2)) {
+                        cmv->wIndex = cpu_to_le16(dsc->idx);
+                        put_unaligned(cpu_to_le32(dsc->address), &cmv->dwSymbolicAddress);
+                        cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
+                } else
                         goto bad2;
         }
 
-        if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) {
+        if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE, E1_MODEMREADY)) {
                 wake_up_cmv_ack(sc);
                 uea_leaves(INS_TO_USBDEV(sc));
                 return;
         }
 
         /* in case of MEMACCESS */
-        if (le16_to_cpu(cmv->wIndex) != sc->cmv_idx ||
-            le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) !=
-            sc->cmv_address
-            || le16_to_cpu(cmv->wOffsetAddress) != sc->cmv_offset)
+        if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
+            le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) != dsc->address ||
+            le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
                 goto bad2;
 
         sc->data = le32_to_cpu(get_unaligned(&cmv->dwData));
@@ -1289,8 +1945,8 @@ static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
 bad2:
         uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
                         "Function : %d, Subfunction : %d\n",
-                        FUNCTION_TYPE(cmv->bFunction),
-                        FUNCTION_SUBTYPE(cmv->bFunction));
+                        E1_FUNCTION_TYPE(cmv->bFunction),
+                        E1_FUNCTION_SUBTYPE(cmv->bFunction));
         uea_leaves(INS_TO_USBDEV(sc));
         return;
 
@@ -1301,6 +1957,61 @@ bad1:
         uea_leaves(INS_TO_USBDEV(sc));
 }
 
+/* The modem send us an ack. First with check if it right */
+static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
+{
+        struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
+        struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;
+
+        uea_enters(INS_TO_USBDEV(sc));
+        uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
+                be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
+                be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
+                be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));
+
+        if (be16_to_cpu(cmv->wFunction) != dsc->function)
+                goto bad2;
+
+        if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE, E4_MODEMREADY, 1)) {
+                wake_up_cmv_ack(sc);
+                uea_leaves(INS_TO_USBDEV(sc));
+                return;
+        }
+
+        /* in case of MEMACCESS */
+        if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
+            be16_to_cpu(cmv->wGroup) != dsc->group ||
+            be16_to_cpu(cmv->wAddress) != dsc->address)
+                goto bad2;
+
+        sc->data = be32_to_cpu(cmv->dwData[0]);
+        sc->data1 = be32_to_cpu(cmv->dwData[1]);
+        wake_up_cmv_ack(sc);
+        uea_leaves(INS_TO_USBDEV(sc));
+        return;
+
+bad2:
+        uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
+                        "Function : %d, Subfunction : %d\n",
+                        E4_FUNCTION_TYPE(cmv->wFunction),
+                        E4_FUNCTION_SUBTYPE(cmv->wFunction));
+        uea_leaves(INS_TO_USBDEV(sc));
+        return;
+}
+
+static void uea_schedule_load_page_e1(struct uea_softc *sc, struct intr_pkt *intr)
+{
+        sc->pageno = intr->e1_bSwapPageNo;
+        sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
+        schedule_work(&sc->task);
+}
+
+static void uea_schedule_load_page_e4(struct uea_softc *sc, struct intr_pkt *intr)
+{
+        sc->pageno = intr->e4_bSwapPageNo;
+        schedule_work(&sc->task);
+}
+
 /*
  * interrupt handler
  */
@@ -1326,13 +2037,11 @@ static void uea_intr(struct urb *urb)
 
         switch (le16_to_cpu(intr->wInterrupt)) {
         case INT_LOADSWAPPAGE:
-                sc->pageno = intr->bSwapPageNo;
-                sc->ovl = intr->bOvl >> 4 | intr->bOvl << 4;
-                schedule_work(&sc->task);
+                sc->schedule_load_page(sc, intr);
                 break;
 
         case INT_INCOMINGCMV:
-                uea_dispatch_cmv(sc, &intr->u.s2.cmv);
+                sc->dispatch_cmv(sc, intr);
                 break;
 
         default:
@@ -1349,19 +2058,34 @@ resubmit:
  */
 static int uea_boot(struct uea_softc *sc)
 {
-        int ret;
+        int ret, size;
         struct intr_pkt *intr;
 
         uea_enters(INS_TO_USBDEV(sc));
 
-        INIT_WORK(&sc->task, uea_load_page);
+        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
+                size = E4_INTR_PKT_SIZE;
+                sc->dispatch_cmv = uea_dispatch_cmv_e4;
+                sc->schedule_load_page = uea_schedule_load_page_e4;
+                sc->stat = uea_stat_e4;
+                sc->send_cmvs = uea_send_cmvs_e4;
+                INIT_WORK(&sc->task, uea_load_page_e4);
+        } else {
+                size = E1_INTR_PKT_SIZE;
+                sc->dispatch_cmv = uea_dispatch_cmv_e1;
+                sc->schedule_load_page = uea_schedule_load_page_e1;
+                sc->stat = uea_stat_e1;
+                sc->send_cmvs = uea_send_cmvs_e1;
+                INIT_WORK(&sc->task, uea_load_page_e1);
+        }
+
         init_waitqueue_head(&sc->sync_q);
         init_waitqueue_head(&sc->cmv_ack_wait);
 
         if (UEA_CHIP_VERSION(sc) == ADI930)
                 load_XILINX_firmware(sc);
 
-        intr = kmalloc(INTR_PKT_SIZE, GFP_KERNEL);
+        intr = kmalloc(size, GFP_KERNEL);
         if (!intr) {
                 uea_err(INS_TO_USBDEV(sc),
                        "cannot allocate interrupt package\n");
@@ -1377,7 +2101,7 @@ static int uea_boot(struct uea_softc *sc)
 
         usb_fill_int_urb(sc->urb_int, sc->usb_dev,
                          usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
-                         intr, INTR_PKT_SIZE, uea_intr, sc,
+                         intr, size, uea_intr, sc,
                          sc->usb_dev->actconfig->interface[0]->altsetting[0].
                          endpoint[0].desc.bInterval);
 
@@ -1487,6 +2211,7 @@ static ssize_t read_human_status(struct device *dev, struct device_attribute *at
                 char *buf)
 {
         int ret = -ENODEV;
+        int modem_state;
         struct uea_softc *sc;
 
         mutex_lock(&uea_mutex);
@@ -1494,7 +2219,34 @@ static ssize_t read_human_status(struct device *dev, struct device_attribute *at
         if (!sc)
                 goto out;
 
-        switch (GET_STATUS(sc->stats.phy.state)) {
+        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
+                switch (sc->stats.phy.state) {
+                case 0x0:       /* not yet synchronized */
+                case 0x1:
+                case 0x3:
+                case 0x4:
+                        modem_state = 0;
+                        break;
+                case 0x5:       /* initialization */
+                case 0x6:
+                case 0x9:
+                case 0xa:
+                        modem_state = 1;
+                        break;
+                case 0x7:       /* operational */
+                        modem_state = 2;
+                        break;
+                case 0x2:       /* fail ... */
+                        modem_state = 3;
+                        break;
+                default:        /* unknown */
+                        modem_state = 4;
+                        break;
+                }
+        } else
+                modem_state = GET_STATUS(sc->stats.phy.state);
+
+        switch (modem_state) {
         case 0:
                 ret = sprintf(buf, "Modem is booting\n");
                 break;
@@ -1504,9 +2256,12 @@ static ssize_t read_human_status(struct device *dev, struct device_attribute *at
         case 2:
                 ret = sprintf(buf, "Modem is operational\n");
                 break;
-        default:
+        case 3:
                 ret = sprintf(buf, "Modem synchronization failed\n");
                 break;
+        default:
+                ret = sprintf(buf, "Modem state is unknown\n");
+                break;
         }
 out:
         mutex_unlock(&uea_mutex);
@@ -1520,18 +2275,26 @@ static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
 {
         int ret = -ENODEV;
         struct uea_softc *sc;
+        char *delin = "GOOD";
 
         mutex_lock(&uea_mutex);
         sc = dev_to_uea(dev);
         if (!sc)
                 goto out;
 
-        if (sc->stats.phy.flags & 0x0C00)
-                ret = sprintf(buf, "ERROR\n");
-        else if (sc->stats.phy.flags & 0x0030)
-                ret = sprintf(buf, "LOSS\n");
-        else
-                ret = sprintf(buf, "GOOD\n");
+        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
+                if (sc->stats.phy.flags & 0x4000)
+                        delin = "RESET";
+                else if (sc->stats.phy.flags & 0x0001)
+                        delin = "LOSS";
+        } else {
+                if (sc->stats.phy.flags & 0x0C00)
+                        delin = "ERROR";
+                else if (sc->stats.phy.flags & 0x0030)
+                        delin = "LOSS";
+        }
+
+        ret = sprintf(buf, "%s\n", delin);
 out:
         mutex_unlock(&uea_mutex);
         return ret;
@@ -1803,6 +2566,8 @@ static const struct usb_device_id uea_ids[] = {
         {USB_DEVICE(EAGLE_VID,  EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
         {USB_DEVICE(EAGLE_VID,  EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM},
         {USB_DEVICE(EAGLE_VID,  EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM},
+        {USB_DEVICE(EAGLE_VID,  EAGLE_IV_PID_PREFIRM),  .driver_info = EAGLE_IV | PREFIRM},
+        {USB_DEVICE(EAGLE_VID,  EAGLE_IV_PID_PSTFIRM),  .driver_info = EAGLE_IV | PSTFIRM},
         {USB_DEVICE(USR_VID,    MILLER_A_PID_PREFIRM),  .driver_info = EAGLE_I | PREFIRM},
         {USB_DEVICE(USR_VID,    MILLER_A_PID_PSTFIRM),  .driver_info = EAGLE_I | PSTFIRM},
         {USB_DEVICE(USR_VID,    MILLER_B_PID_PREFIRM),  .driver_info = EAGLE_I | PREFIRM},