[PATCH] i4l: update hfc_usb driver

  - cleanup source
  - remove nonfunctional code parts

Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 117 insertions, 175 deletions

diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c
index e2c3af49d72b..32bf0d5d0f9a 100644
--- a/drivers/isdn/hisax/hfc_usb.c
+++ b/drivers/isdn/hisax/hfc_usb.c
@@ -1,7 +1,7 @@
 /*
  * hfc_usb.c
  *
- * $Id: hfc_usb.c,v 4.34 2005/01/26 17:25:53 martinb1 Exp $
+ * $Id: hfc_usb.c,v 4.36 2005/04/08 09:55:13 martinb1 Exp $
  *
  * modular HiSax ISDN driver for Colognechip HFC-S USB chip
  *
@@ -44,12 +44,8 @@
 #include "hisax_if.h"
 #include "hfc_usb.h"
 
-/*
-* Version Information
-* (do not modify the CVS Makros $Revision: 4.34 $ and $Date: 2005/01/26 17:25:53 $ !)
-*/
 static const char *hfcusb_revision =
-    "Revision: 4.34 $ Date: 2005/01/26 17:25:53 $ ";
+    "$Revision: 4.36 $ $Date: 2005/04/08 09:55:13 $ ";
 
 /* Hisax debug support
 * use "modprobe debug=x" where x is bitfield of USB_DBG & ISDN_DBG
@@ -63,81 +59,89 @@ module_param(debug, uint, 0);
 static int hfc_debug;
 #endif
 
+/* private vendor specific data */
+typedef struct {
+        __u8 led_scheme;        // led display scheme
+        signed short led_bits[8];       // array of 8 possible LED bitmask settings
+        char *vend_name;        // device name
+} hfcsusb_vdata;
 
 /****************************************/
 /* data defining the devices to be used */
 /****************************************/
-static struct usb_device_id hfc_usb_idtab[] = {
-        {USB_DEVICE(0x0959, 0x2bd0)},   /* Colognechip USB eval TA */
-        {USB_DEVICE(0x0675, 0x1688)},   /* DrayTek miniVigor 128 USB ISDN TA */
-        {USB_DEVICE(0x07b0, 0x0007)},   /* Billion USB TA 2 */
-        {USB_DEVICE(0x0742, 0x2008)},   /* Stollmann USB TA */
-        {USB_DEVICE(0x0742, 0x2009)},   /* Aceex USB ISDN TA */
-        {USB_DEVICE(0x0742, 0x200A)},   /* OEM USB ISDN TA */
-        {USB_DEVICE(0x08e3, 0x0301)},   /* OliTec ISDN USB */
-        {USB_DEVICE(0x07fa, 0x0846)},   /* Bewan ISDN USB TA */
-        {USB_DEVICE(0x07fa, 0x0847)},   /* Djinn Numeris USB */
-        {USB_DEVICE(0x07b0, 0x0006)},   /* Twister ISDN USB TA */
-        {}                      /* end with an all-zeroes entry */
+static struct usb_device_id hfcusb_idtab[] = {
+        {
+         .idVendor = 0x0959,
+         .idProduct = 0x2bd0,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_OFF, {4, 0, 2, 1},
+                           "ISDN USB TA (Cologne Chip HFC-S USB based)"}),
+        },
+        {
+         .idVendor = 0x0675,
+         .idProduct = 0x1688,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {1, 2, 0, 0},
+                           "DrayTek miniVigor 128 USB ISDN TA"}),
+        },
+        {
+         .idVendor = 0x07b0,
+         .idProduct = 0x0007,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {0x80, -64, -32, -16},
+                           "Billion tiny USB ISDN TA 128"}),
+        },
+        {
+         .idVendor = 0x0742,
+         .idProduct = 0x2008,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {4, 0, 2, 1},
+                           "Stollmann USB TA"}),
+         },
+        {
+         .idVendor = 0x0742,
+         .idProduct = 0x2009,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {4, 0, 2, 1},
+                           "Aceex USB ISDN TA"}),
+         },
+        {
+         .idVendor = 0x0742,
+         .idProduct = 0x200A,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {4, 0, 2, 1},
+                           "OEM USB ISDN TA"}),
+         },
+        {
+         .idVendor = 0x08e3,
+         .idProduct = 0x0301,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {2, 0, 1, 4},
+                           "Olitec USB RNIS"}),
+         },
+        {
+         .idVendor = 0x07fa,
+         .idProduct = 0x0846,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {0x80, -64, -32, -16},
+                           "Bewan Modem RNIS USB"}),
+         },
+        {
+         .idVendor = 0x07fa,
+         .idProduct = 0x0847,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {0x80, -64, -32, -16},
+                           "Djinn Numeris USB"}),
+         },
+        {
+         .idVendor = 0x07b0,
+         .idProduct = 0x0006,
+         .driver_info = (unsigned long) &((hfcsusb_vdata)
+                          {LED_SCHEME1, {0x80, -64, -32, -16},
+                           "Twister ISDN TA"}),
+         },
 };
 
-/* driver internal device specific data:
-*   VendorID, ProductID, Devicename, LED_SCHEME,
-*   LED's BitMask in HFCUSB_P_DATA Register : LED_USB, LED_S0, LED_B1, LED_B2
-*/
-static vendor_data vdata[] = {
-        /* CologneChip Eval TA */
-        {0x0959, 0x2bd0, "ISDN USB TA (Cologne Chip HFC-S USB based)",
-         LED_OFF, {4, 0, 2, 1}
-         }
-        ,
-        /* DrayTek miniVigor 128 USB ISDN TA */
-        {0x0675, 0x1688, "DrayTek miniVigor 128 USB ISDN TA",
-         LED_SCHEME1, {1, 2, 0, 0}
-         }
-        ,
-        /* Billion TA */
-        {0x07b0, 0x0007, "Billion tiny USB ISDN TA 128",
-         LED_SCHEME1, {0x80, -64, -32, -16}
-         }
-        ,
-        /* Stollmann TA */
-        {0x0742, 0x2008, "Stollmann USB TA",
-         LED_SCHEME1, {4, 0, 2, 1}
-         }
-        ,
-        /* Aceex USB ISDN TA */
-        {0x0742, 0x2009, "Aceex USB ISDN TA",
-         LED_SCHEME1, {4, 0, 2, 1}
-         }
-        ,
-        /* OEM USB ISDN TA */
-        {0x0742, 0x200A, "OEM USB ISDN TA",
-         LED_SCHEME1, {4, 0, 2, 1}
-         }
-        ,
-        /* Olitec TA  */
-        {0x08e3, 0x0301, "Olitec USB RNIS",
-         LED_SCHEME1, {2, 0, 1, 4}
-         }
-        ,
-        /* Bewan TA   */
-        {0x07fa, 0x0846, "Bewan Modem RNIS USB",
-         LED_SCHEME1, {0x80, -64, -32, -16}
-         }
-        ,
-        /* Bewan TA   */
-        {0x07fa, 0x0847, "Djinn Numeris USB",
-         LED_SCHEME1, {0x80, -64, -32, -16}
-         }
-        ,
-        /* Twister ISDN TA   */
-        {0x07b0, 0x0006, "Twister ISDN TA",
-         LED_SCHEME1, {0x80, -64, -32, -16}
-         }
-        ,
-        {0, 0, 0}               /* EOL element */
-};
 
 /***************************************************************/
 /* structure defining input+output fifos (interrupt/bulk mode) */
@@ -211,8 +215,6 @@ typedef struct hfcusb_data {
         volatile __u8 l1_state; /* actual l1 state */
         struct timer_list t3_timer;     /* timer 3 for activation/deactivation */
         struct timer_list t4_timer;     /* timer 4 for activation/deactivation */
-        struct timer_list led_timer;    /* timer flashing leds */
-
 } hfcusb_data;
 
 
@@ -227,7 +229,7 @@ symbolic(struct hfcusb_symbolic_list list[], const int num)
         for (i = 0; list[i].name != NULL; i++)
                 if (list[i].num == num)
                         return (list[i].name);
-        return "<unkown>";
+        return "<unkown ERROR>";
 }
 
 
@@ -335,93 +337,57 @@ set_led_bit(hfcusb_data * hfc, signed short led_bits, int unset)
         }
 }
 
-/******************************************/
-/* invert B-channel LEDs if data is sent  */
-/******************************************/
-static void
-led_timer(hfcusb_data * hfc)
-{
-        static int cnt = 0;
-
-        if (cnt) {
-                if (hfc->led_b_active & 1)
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[2],
-                                    0);
-                if (hfc->led_b_active & 2)
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[3],
-                                    0);
-        } else {
-                if (!(hfc->led_b_active & 1) || hfc->led_new_data & 1)
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[2],
-                                    1);
-                if (!(hfc->led_b_active & 2) || hfc->led_new_data & 2)
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[3],
-                                    1);
-        }
-
-        write_led(hfc, hfc->led_state);
-        hfc->led_new_data = 0;
-
-        cnt = !cnt;
-
-        /* restart 4 hz timer */
-        if (!timer_pending(&hfc->led_timer)) {
-                add_timer(&hfc->led_timer);
-                hfc->led_timer.expires = jiffies + (LED_TIME * HZ) / 1000;
-        }
-}
-
 /**************************/
 /* handle LED requests    */
 /**************************/
 static void
 handle_led(hfcusb_data * hfc, int event)
 {
+        hfcsusb_vdata *driver_info =
+            (hfcsusb_vdata *) hfcusb_idtab[hfc->vend_idx].driver_info;
+
         /* if no scheme -> no LED action */
-        if (vdata[hfc->vend_idx].led_scheme == LED_OFF)
+        if (driver_info->led_scheme == LED_OFF)
                 return;
 
         switch (event) {
                 case LED_POWER_ON:
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[0],
+                        set_led_bit(hfc, driver_info->led_bits[0],
                                     0);
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[1],
+                        set_led_bit(hfc, driver_info->led_bits[1],
                                     1);
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[2],
+                        set_led_bit(hfc, driver_info->led_bits[2],
                                     1);
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[3],
+                        set_led_bit(hfc, driver_info->led_bits[3],
                                     1);
                         break;
                 case LED_POWER_OFF:     /* no Power off handling */
                         break;
                 case LED_S0_ON:
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[1],
+                        set_led_bit(hfc, driver_info->led_bits[1],
                                     0);
                         break;
                 case LED_S0_OFF:
-                        set_led_bit(hfc, vdata[hfc->vend_idx].led_bits[1],
+                        set_led_bit(hfc, driver_info->led_bits[1],
                                     1);
                         break;
                 case LED_B1_ON:
-                        hfc->led_b_active |= 1;
+                        set_led_bit(hfc, driver_info->led_bits[2],
+                                    0);
                         break;
                 case LED_B1_OFF:
-                        hfc->led_b_active &= ~1;
-                        break;
-                case LED_B1_DATA:
-                        hfc->led_new_data |= 1;
+                        set_led_bit(hfc, driver_info->led_bits[2],
+                                    1);
                         break;
                 case LED_B2_ON:
-                        hfc->led_b_active |= 2;
+                        set_led_bit(hfc, driver_info->led_bits[3],
+                                    0);
                         break;
                 case LED_B2_OFF:
-                        hfc->led_b_active &= ~2;
-                        break;
-                case LED_B2_DATA:
-                        hfc->led_new_data |= 2;
+                        set_led_bit(hfc, driver_info->led_bits[3],
+                                    1);
                         break;
         }
-
         write_led(hfc, hfc->led_state);
 }
 
@@ -725,14 +691,6 @@ tx_iso_complete(struct urb *urb, struct pt_regs *regs)
                                     current_len + 1;
 
                                 tx_offset += (current_len + 1);
-                                if (!transp_mode) {
-                                        if (fifon == HFCUSB_B1_TX)
-                                                handle_led(hfc,
-                                                           LED_B1_DATA);
-                                        if (fifon == HFCUSB_B2_TX)
-                                                handle_led(hfc,
-                                                           LED_B2_DATA);
-                                }
                         } else {
                                 urb->iso_frame_desc[k].offset =
                                     tx_offset++;
@@ -966,14 +924,6 @@ collect_rx_frame(usb_fifo * fifo, __u8 * data, int len, int finish)
                         skb_trim(fifo->skbuff, 0);
                 }
         }
-
-        /* LED flashing only in HDLC mode */
-        if (!transp_mode) {
-                if (fifon == HFCUSB_B1_RX)
-                        handle_led(hfc, LED_B1_DATA);
-                if (fifon == HFCUSB_B2_RX)
-                        handle_led(hfc, LED_B2_DATA);
-        }
 }
 
 /***********************************************/
@@ -1339,17 +1289,6 @@ usb_init(hfcusb_data * hfc)
         hfc->t4_timer.data = (long) hfc;
         hfc->t4_timer.function = (void *) l1_timer_expire_t4;
 
-        /* init the led timer */
-        init_timer(&hfc->led_timer);
-        hfc->led_timer.data = (long) hfc;
-        hfc->led_timer.function = (void *) led_timer;
-
-        /* trigger 4 hz led timer */
-        if (!timer_pending(&hfc->led_timer)) {
-                hfc->led_timer.expires = jiffies + (LED_TIME * HZ) / 1000;
-                add_timer(&hfc->led_timer);
-        }
-
         /* init the background machinery for control requests */
         hfc->ctrl_read.bRequestType = 0xc0;
         hfc->ctrl_read.bRequest = 1;
@@ -1440,13 +1379,18 @@ hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
             attr, cfg_found, cidx, ep_addr;
         int cmptbl[16], small_match, iso_packet_size, packet_size,
             alt_used = 0;
+        hfcsusb_vdata *driver_info;
 
         vend_idx = 0xffff;
-        for (i = 0; vdata[i].vendor; i++) {
-                if (dev->descriptor.idVendor == vdata[i].vendor
-                    && dev->descriptor.idProduct == vdata[i].prod_id)
+        for (i = 0; hfcusb_idtab[i].idVendor; i++) {
+                if (dev->descriptor.idVendor == hfcusb_idtab[i].idVendor
+                    && dev->descriptor.idProduct ==
+                    hfcusb_idtab[i].idProduct) {
                         vend_idx = i;
+                        continue;
+                }
         }
+
 #ifdef CONFIG_HISAX_DEBUG
         DBG(USB_DBG,
             "HFC-USB: probing interface(%d) actalt(%d) minor(%d)\n", ifnum,
@@ -1457,10 +1401,6 @@ hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
                ifnum, iface->desc.bAlternateSetting, intf->minor);
 
         if (vend_idx != 0xffff) {
-#ifdef CONFIG_HISAX_DEBUG
-                DBG(USB_DBG, "HFC-S USB: found vendor idx:%d  name:%s",
-                    vend_idx, vdata[vend_idx].vend_name);
-#endif
                 /* if vendor and product ID is OK, start probing alternate settings */
                 alt_idx = 0;
                 small_match = 0xffff;
@@ -1687,9 +1627,11 @@ hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
                             usb_sndctrlpipe(context->dev, 0);
                         context->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
 
-                        printk(KERN_INFO
-                               "HFC-S USB: detected \"%s\"\n",
-                               vdata[vend_idx].vend_name);
+                        driver_info =
+                            (hfcsusb_vdata *) hfcusb_idtab[vend_idx].
+                            driver_info;
+                        printk(KERN_INFO "HFC-S USB: detected \"%s\"\n",
+                               driver_info->vend_name);
 #ifdef CONFIG_HISAX_DEBUG
                         DBG(USB_DBG,
                             "HFC-S USB: Endpoint-Config: %s (if=%d alt=%d)\n",
@@ -1740,8 +1682,6 @@ hfc_usb_disconnect(struct usb_interface
                 del_timer(&context->t3_timer);
         if (timer_pending(&context->t4_timer))
                 del_timer(&context->t4_timer);
-        if (timer_pending(&context->led_timer))
-                del_timer(&context->led_timer);
         /* tell all fifos to terminate */
         for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
                 if (context->fifos[i].usb_transfer_mode == USB_ISOC) {
@@ -1785,9 +1725,11 @@ hfc_usb_disconnect(struct usb_interface
 /* our driver information structure */
 /************************************/
 static struct usb_driver hfc_drv = {
-        .owner = THIS_MODULE,.name =
-            "hfc_usb",.id_table = hfc_usb_idtab,.probe =
-            hfc_usb_probe,.disconnect = hfc_usb_disconnect,
+        .owner = THIS_MODULE,
+        .name  = "hfc_usb",
+        .id_table = hfcusb_idtab,
+        .probe = hfc_usb_probe,
+        .disconnect = hfc_usb_disconnect,
 };
 static void __exit
 hfc_usb_exit(void)
@@ -1825,4 +1767,4 @@ module_exit(hfc_usb_exit);
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(usb, hfc_usb_idtab);
+MODULE_DEVICE_TABLE(usb, hfcusb_idtab);