fedora core 6 1.2949 + vserver 2.2.0
[linux-2.6.git] / drivers / usb / atm / ueagle-atm.c
index 830d2c9..4973e14 100644 (file)
 #include <linux/usb.h>
 #include <linux/firmware.h>
 #include <linux/ctype.h>
+#include <linux/sched.h>
 #include <linux/kthread.h>
 #include <linux/version.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
+
 #include <asm/unaligned.h>
 
 #include "usbatm.h"
 
-#define EAGLEUSBVERSION "ueagle 1.2"
+#define EAGLEUSBVERSION "ueagle 1.4"
 
 
 /*
                        dev_dbg(&(usb_dev)->dev, \
                                "[ueagle-atm dbg] %s: " format, \
                                        __FUNCTION__, ##args); \
-       } while (0)
+       } while (0)
 
 #define uea_vdbg(usb_dev, format, args...)     \
        do { \
                if (debug >= 2) \
                        dev_dbg(&(usb_dev)->dev, \
                                "[ueagle-atm vdbg]  " format, ##args); \
-       } while (0)
+       } while (0)
 
 #define uea_enters(usb_dev) \
        uea_vdbg(usb_dev, "entering %s\n", __FUNCTION__)
@@ -218,8 +221,8 @@ enum {
 #define UEA_CHIP_VERSION(x) \
        ((x)->driver_info & 0xf)
 
-#define IS_ISDN(sc) \
-       (le16_to_cpu(sc->usb_dev->descriptor.bcdDevice) & 0x80)
+#define IS_ISDN(usb_dev) \
+       (le16_to_cpu((usb_dev)->descriptor.bcdDevice) & 0x80)
 
 #define INS_TO_USBDEV(ins) ins->usb_dev
 
@@ -243,7 +246,7 @@ enum {
 #define BULK_TIMEOUT 300
 #define CTRL_TIMEOUT 1000
 
-#define ACK_TIMEOUT msecs_to_jiffies(1500)
+#define ACK_TIMEOUT msecs_to_jiffies(3000)
 
 #define UEA_INTR_IFACE_NO      0
 #define UEA_US_IFACE_NO                1
@@ -314,6 +317,10 @@ struct cmv {
         ((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')
@@ -397,9 +404,8 @@ static int uea_send_modem_cmd(struct usb_device *usb,
        int ret = -ENOMEM;
        u8 *xfer_buff;
 
-       xfer_buff = kmalloc(size, GFP_KERNEL);
+       xfer_buff = kmemdup(buff, size, GFP_KERNEL);
        if (xfer_buff) {
-               memcpy(xfer_buff, buff, size);
                ret = usb_control_msg(usb,
                                      usb_sndctrlpipe(usb, 0),
                                      LOAD_INTERNAL,
@@ -591,14 +597,12 @@ static int uea_idma_write(struct uea_softc *sc, void *data, u32 size)
        u8 *xfer_buff;
        int bytes_read;
 
-       xfer_buff = kmalloc(size, GFP_KERNEL);
+       xfer_buff = kmemdup(data, size, GFP_KERNEL);
        if (!xfer_buff) {
                uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
                return ret;
        }
 
-       memcpy(xfer_buff, data, size);
-
        ret = usb_bulk_msg(sc->usb_dev,
                         usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
                         xfer_buff, size, &bytes_read, BULK_TIMEOUT);
@@ -621,12 +625,12 @@ static int request_dsp(struct uea_softc *sc)
        char *dsp_name;
 
        if (UEA_CHIP_VERSION(sc) == ADI930) {
-               if (IS_ISDN(sc))
+               if (IS_ISDN(sc->usb_dev))
                        dsp_name = FW_DIR "DSP9i.bin";
                else
                        dsp_name = FW_DIR "DSP9p.bin";
        } else {
-               if (IS_ISDN(sc))
+               if (IS_ISDN(sc->usb_dev))
                        dsp_name = FW_DIR "DSPei.bin";
                else
                        dsp_name = FW_DIR "DSPep.bin";
@@ -654,9 +658,9 @@ 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(void *xsc)
+static void uea_load_page(struct work_struct *work)
 {
-       struct uea_softc *sc = xsc;
+       struct uea_softc *sc = container_of(work, struct uea_softc, task);
        u16 pageno = sc->pageno;
        u16 ovl = sc->ovl;
        struct block_info bi;
@@ -728,21 +732,25 @@ bad2:
        uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
        return;
 bad1:
-       uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n",pageno);
+       uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
 }
 
 static inline void wake_up_cmv_ack(struct uea_softc *sc)
 {
+       BUG_ON(sc->cmv_ack);
        sc->cmv_ack = 1;
        wake_up(&sc->cmv_ack_wait);
 }
 
 static inline int wait_cmv_ack(struct uea_softc *sc)
 {
-       int ret = wait_event_timeout(sc->cmv_ack_wait,
+       int ret = wait_event_interruptible_timeout(sc->cmv_ack_wait,
                                                   sc->cmv_ack, ACK_TIMEOUT);
        sc->cmv_ack = 0;
 
+       uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
+                       jiffies_to_msecs(ret));
+
        if (ret < 0)
                return ret;
 
@@ -757,12 +765,11 @@ static int uea_request(struct uea_softc *sc,
        u8 *xfer_buff;
        int ret = -ENOMEM;
 
-       xfer_buff = kmalloc(size, GFP_KERNEL);
+       xfer_buff = kmemdup(data, size, GFP_KERNEL);
        if (!xfer_buff) {
                uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
                return ret;
        }
-       memcpy(xfer_buff, data, size);
 
        ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
                              UCDC_SEND_ENCAPSULATED_COMMAND,
@@ -791,6 +798,12 @@ static int uea_cmv(struct uea_softc *sc,
        struct cmv 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);
        /* we send a request, but we expect a reply */
        sc->cmv_function = function | 0x2;
        sc->cmv_idx++;
@@ -808,7 +821,9 @@ static int uea_cmv(struct uea_softc *sc,
        ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv);
        if (ret < 0)
                return ret;
-       return wait_cmv_ack(sc);
+       ret = wait_cmv_ack(sc);
+       uea_leaves(INS_TO_USBDEV(sc));
+       return ret;
 }
 
 static inline int uea_read_cmv(struct uea_softc *sc,
@@ -869,7 +884,8 @@ static int uea_stat(struct uea_softc *sc)
                break;
 
        case 3:         /* fail ... */
-               uea_info(INS_TO_USBDEV(sc), "modem synchronization failed\n");
+               uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
+                               " (may be try other cmv/dsp)\n");
                return -EAGAIN;
 
        case 4 ... 6:   /* test state */
@@ -897,12 +913,6 @@ static int uea_stat(struct uea_softc *sc)
                        release_firmware(sc->dsp_firm);
                        sc->dsp_firm = NULL;
                }
-
-               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);
        }
 
        /* always update it as atm layer could not be init when we switch to
@@ -922,7 +932,7 @@ static int uea_stat(struct uea_softc *sc)
         * 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 = %d\n",
+               uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
                       sc->stats.phy.flags);
                return 0;
        }
@@ -1017,9 +1027,9 @@ static int request_cmvs(struct uea_softc *sc,
 
        if (cmv_file[sc->modem_index] == NULL) {
                if (UEA_CHIP_VERSION(sc) == ADI930)
-                       file = (IS_ISDN(sc)) ? "CMV9i.bin" : "CMV9p.bin";
+                       file = (IS_ISDN(sc->usb_dev)) ? "CMV9i.bin" : "CMV9p.bin";
                else
-                       file = (IS_ISDN(sc)) ? "CMVei.bin" : "CMVep.bin";
+                       file = (IS_ISDN(sc->usb_dev)) ? "CMVei.bin" : "CMVep.bin";
        } else
                file = cmv_file[sc->modem_index];
 
@@ -1063,7 +1073,13 @@ static int uea_start_reset(struct uea_softc *sc)
        uea_enters(INS_TO_USBDEV(sc));
        uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
 
+       /* mask interrupt */
        sc->booting = 1;
+       /* We need to set this here because, a ack timeout could have occured,
+        * but before we start the reboot, the ack occurs and set this to 1.
+        * So we will failed to wait Ready CMV.
+        */
+       sc->cmv_ack = 0;
        UPDATE_ATM_STAT(signal, ATM_PHY_SIG_LOST);
 
        /* reset statistics */
@@ -1089,6 +1105,7 @@ static int uea_start_reset(struct uea_softc *sc)
 
        msleep(1000);
        sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY);
+       /* demask interrupt */
        sc->booting = 0;
 
        /* start loading DSP */
@@ -1101,11 +1118,20 @@ static int uea_start_reset(struct uea_softc *sc)
        if (ret < 0)
                return ret;
 
+       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);
        if (ret < 0)
@@ -1121,6 +1147,9 @@ static int uea_start_reset(struct uea_softc *sc)
        }
        /* 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;
@@ -1146,7 +1175,10 @@ static int uea_kthread(void *data)
                if (!ret)
                        ret = uea_stat(sc);
                if (ret != -EAGAIN)
-                       msleep(1000);
+                       msleep_interruptible(1000);
+               if (try_to_freeze())
+                       uea_err(INS_TO_USBDEV(sc), "suspend/resume not supported, "
+                               "please unplug/replug your modem\n");
        }
        uea_leaves(INS_TO_USBDEV(sc));
        return ret;
@@ -1235,6 +1267,7 @@ static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
 
        if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) {
                wake_up_cmv_ack(sc);
+               uea_leaves(INS_TO_USBDEV(sc));
                return;
        }
 
@@ -1249,6 +1282,7 @@ static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
        sc->data = sc->data << 16 | sc->data >> 16;
 
        wake_up_cmv_ack(sc);
+       uea_leaves(INS_TO_USBDEV(sc));
        return;
 
 bad2:
@@ -1256,18 +1290,20 @@ bad2:
                        "Function : %d, Subfunction : %d\n",
                        FUNCTION_TYPE(cmv->bFunction),
                        FUNCTION_SUBTYPE(cmv->bFunction));
+       uea_leaves(INS_TO_USBDEV(sc));
        return;
 
 bad1:
        uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
                        "wPreamble %d, bDirection %d\n",
                        le16_to_cpu(cmv->wPreamble), cmv->bDirection);
+       uea_leaves(INS_TO_USBDEV(sc));
 }
 
 /*
  * interrupt handler
  */
-static void uea_intr(struct urb *urb, struct pt_regs *regs)
+static void uea_intr(struct urb *urb)
 {
        struct uea_softc *sc = urb->context;
        struct intr_pkt *intr = urb->transfer_buffer;
@@ -1315,7 +1351,7 @@ static int uea_boot(struct uea_softc *sc)
 
        uea_enters(INS_TO_USBDEV(sc));
 
-       INIT_WORK(&sc->task, uea_load_page, sc);
+       INIT_WORK(&sc->task, uea_load_page);
        init_waitqueue_head(&sc->sync_q);
        init_waitqueue_head(&sc->cmv_ack_wait);
 
@@ -1346,7 +1382,7 @@ static int uea_boot(struct uea_softc *sc)
        if (ret < 0) {
                uea_err(INS_TO_USBDEV(sc),
                       "urb submition failed with error %d\n", ret);
-               goto err1;
+               goto err;
        }
 
        sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
@@ -1360,10 +1396,10 @@ static int uea_boot(struct uea_softc *sc)
 
 err2:
        usb_kill_urb(sc->urb_int);
-err1:
-       kfree(intr);
 err:
        usb_free_urb(sc->urb_int);
+       sc->urb_int = NULL;
+       kfree(intr);
        uea_leaves(INS_TO_USBDEV(sc));
        return -ENOMEM;
 }
@@ -1508,7 +1544,7 @@ static ssize_t read_##name(struct device *dev,                    \
        int ret = -ENODEV;                                      \
        struct uea_softc *sc;                                   \
                                                                \
-       mutex_lock(&uea_mutex);                                         \
+       mutex_lock(&uea_mutex);                                 \
        sc = dev_to_uea(dev);                                   \
        if (!sc)                                                \
                goto out;                                       \
@@ -1516,7 +1552,7 @@ static ssize_t read_##name(struct device *dev,                    \
        if (reset)                                              \
                sc->stats.phy.name = 0;                         \
 out:                                                           \
-       mutex_unlock(&uea_mutex);                                       \
+       mutex_unlock(&uea_mutex);                               \
        return ret;                                             \
 }                                                              \
                                                                \
@@ -1536,6 +1572,7 @@ UEA_ATTR(uscorr, 0);
 UEA_ATTR(dscorr, 0);
 UEA_ATTR(usunc, 0);
 UEA_ATTR(dsunc, 0);
+UEA_ATTR(firmid, 0);
 
 /* Retrieve the device End System Identifier (MAC) */
 
@@ -1567,7 +1604,7 @@ static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
 {
        struct uea_softc *sc = usbatm->driver_data;
 
-       wait_event(sc->sync_q, IS_OPERATIONAL(sc));
+       wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));
 
        return 0;
 
@@ -1591,27 +1628,30 @@ static int claim_interface(struct usb_device *usb_dev,
        return ret;
 }
 
-static void create_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
-{
-       /* sysfs interface */
-       device_create_file(&intf->dev, &dev_attr_stat_status);
-       device_create_file(&intf->dev, &dev_attr_stat_mflags);
-       device_create_file(&intf->dev, &dev_attr_stat_human_status);
-       device_create_file(&intf->dev, &dev_attr_stat_delin);
-       device_create_file(&intf->dev, &dev_attr_stat_vidcpe);
-       device_create_file(&intf->dev, &dev_attr_stat_usrate);
-       device_create_file(&intf->dev, &dev_attr_stat_dsrate);
-       device_create_file(&intf->dev, &dev_attr_stat_usattenuation);
-       device_create_file(&intf->dev, &dev_attr_stat_dsattenuation);
-       device_create_file(&intf->dev, &dev_attr_stat_usmargin);
-       device_create_file(&intf->dev, &dev_attr_stat_dsmargin);
-       device_create_file(&intf->dev, &dev_attr_stat_txflow);
-       device_create_file(&intf->dev, &dev_attr_stat_rxflow);
-       device_create_file(&intf->dev, &dev_attr_stat_uscorr);
-       device_create_file(&intf->dev, &dev_attr_stat_dscorr);
-       device_create_file(&intf->dev, &dev_attr_stat_usunc);
-       device_create_file(&intf->dev, &dev_attr_stat_dsunc);
-}
+static struct attribute *attrs[] = {
+       &dev_attr_stat_status.attr,
+       &dev_attr_stat_mflags.attr,
+       &dev_attr_stat_human_status.attr,
+       &dev_attr_stat_delin.attr,
+       &dev_attr_stat_vidcpe.attr,
+       &dev_attr_stat_usrate.attr,
+       &dev_attr_stat_dsrate.attr,
+       &dev_attr_stat_usattenuation.attr,
+       &dev_attr_stat_dsattenuation.attr,
+       &dev_attr_stat_usmargin.attr,
+       &dev_attr_stat_dsmargin.attr,
+       &dev_attr_stat_txflow.attr,
+       &dev_attr_stat_rxflow.attr,
+       &dev_attr_stat_uscorr.attr,
+       &dev_attr_stat_dscorr.attr,
+       &dev_attr_stat_usunc.attr,
+       &dev_attr_stat_dsunc.attr,
+       &dev_attr_stat_firmid.attr,
+       NULL,
+};
+static struct attribute_group attr_grp = {
+       .attrs = attrs,
+};
 
 static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
                   const struct usb_device_id *id)
@@ -1643,7 +1683,7 @@ static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
 
        sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
        if (!sc) {
-               uea_err(INS_TO_USBDEV(sc), "uea_init: not enough memory !\n");
+               uea_err(usb, "uea_init: not enough memory !\n");
                return -ENOMEM;
        }
 
@@ -1672,43 +1712,25 @@ static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
                }
        }
 
+       ret = sysfs_create_group(&intf->dev.kobj, &attr_grp);
+       if (ret < 0)
+               goto error;
+
        ret = uea_boot(sc);
-       if (ret < 0) {
-               kfree(sc);
-               return ret;
-       }
+       if (ret < 0)
+               goto error;
 
-       create_fs_entries(sc, intf);
        return 0;
-}
-
-static void destroy_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
-{
-       /* sysfs interface */
-       device_remove_file(&intf->dev, &dev_attr_stat_status);
-       device_remove_file(&intf->dev, &dev_attr_stat_mflags);
-       device_remove_file(&intf->dev, &dev_attr_stat_human_status);
-       device_remove_file(&intf->dev, &dev_attr_stat_delin);
-       device_remove_file(&intf->dev, &dev_attr_stat_vidcpe);
-       device_remove_file(&intf->dev, &dev_attr_stat_usrate);
-       device_remove_file(&intf->dev, &dev_attr_stat_dsrate);
-       device_remove_file(&intf->dev, &dev_attr_stat_usattenuation);
-       device_remove_file(&intf->dev, &dev_attr_stat_dsattenuation);
-       device_remove_file(&intf->dev, &dev_attr_stat_usmargin);
-       device_remove_file(&intf->dev, &dev_attr_stat_dsmargin);
-       device_remove_file(&intf->dev, &dev_attr_stat_txflow);
-       device_remove_file(&intf->dev, &dev_attr_stat_rxflow);
-       device_remove_file(&intf->dev, &dev_attr_stat_uscorr);
-       device_remove_file(&intf->dev, &dev_attr_stat_dscorr);
-       device_remove_file(&intf->dev, &dev_attr_stat_usunc);
-       device_remove_file(&intf->dev, &dev_attr_stat_dsunc);
+error:
+       kfree(sc);
+       return ret;
 }
 
 static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
 {
        struct uea_softc *sc = usbatm->driver_data;
 
-       destroy_fs_entries(sc, intf);
+       sysfs_remove_group(&intf->dev.kobj, &attr_grp);
        uea_stop(sc);
        kfree(sc);
 }
@@ -1729,10 +1751,10 @@ static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
        struct usb_device *usb = interface_to_usbdev(intf);
 
        uea_enters(usb);
-       uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s\n",
+       uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s %s\n",
               le16_to_cpu(usb->descriptor.idVendor),
               le16_to_cpu(usb->descriptor.idProduct),
-              chip_name[UEA_CHIP_VERSION(id)]);
+              chip_name[UEA_CHIP_VERSION(id)], IS_ISDN(usb)?"isdn":"pots");
 
        usb_reset_device(usb);