diff options
Diffstat (limited to 'drivers/char/synclink.c')
| -rw-r--r-- | drivers/char/synclink.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c index 37c8bea8e2b..ea2d54be484 100644 --- a/drivers/char/synclink.c +++ b/drivers/char/synclink.c @@ -1,7 +1,7 @@ /* * linux/drivers/char/synclink.c * - * $Id: synclink.c,v 4.28 2004/08/11 19:30:01 paulkf Exp $ + * $Id: synclink.c,v 4.37 2005/09/07 13:13:19 paulkf Exp $ * * Device driver for Microgate SyncLink ISA and PCI * high speed multiprotocol serial adapters. @@ -141,9 +141,9 @@ static MGSL_PARAMS default_params = { typedef struct _DMABUFFERENTRY { u32 phys_addr; /* 32-bit flat physical address of data buffer */ - u16 count; /* buffer size/data count */ - u16 status; /* Control/status field */ - u16 rcc; /* character count field */ + volatile u16 count; /* buffer size/data count */ + volatile u16 status; /* Control/status field */ + volatile u16 rcc; /* character count field */ u16 reserved; /* padding required by 16C32 */ u32 link; /* 32-bit flat link to next buffer entry */ char *virt_addr; /* virtual address of data buffer */ @@ -896,7 +896,7 @@ module_param_array(txdmabufs, int, NULL, 0); module_param_array(txholdbufs, int, NULL, 0); static char *driver_name = "SyncLink serial driver"; -static char *driver_version = "$Revision: 4.28 $"; +static char *driver_version = "$Revision: 4.37 $"; static int synclink_init_one (struct pci_dev *dev, const struct pci_device_id *ent); @@ -1814,6 +1814,8 @@ static int startup(struct mgsl_struct * info) info->pending_bh = 0; + memset(&info->icount, 0, sizeof(info->icount)); + init_timer(&info->tx_timer); info->tx_timer.data = (unsigned long)info; info->tx_timer.function = mgsl_tx_timeout; @@ -2470,12 +2472,12 @@ static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount __user * printk("%s(%d):mgsl_get_params(%s)\n", __FILE__,__LINE__, info->device_name); - COPY_TO_USER(err,user_icount, &info->icount, sizeof(struct mgsl_icount)); - if (err) { - if ( debug_level >= DEBUG_LEVEL_INFO ) - printk( "%s(%d):mgsl_get_stats(%s) user buffer copy failed\n", - __FILE__,__LINE__,info->device_name); - return -EFAULT; + if (!user_icount) { + memset(&info->icount, 0, sizeof(info->icount)); + } else { + COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount)); + if (err) + return -EFAULT; } return 0; @@ -6149,6 +6151,11 @@ static void usc_set_async_mode( struct mgsl_struct *info ) usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12)); } + if (info->params.loopback) { + info->loopback_bits = 0x300; + outw(0x0300, info->io_base + CCAR); + } + } /* end of usc_set_async_mode() */ /* usc_loopback_frame() |