/*
* linux/drivers/char/synclink.c
*
- * $Id: synclink.c,v 4.28 2004/08/11 19:30:01 paulkf Exp $
+ * $Id: synclink.c,v 4.38 2005/11/07 16:30:34 paulkf Exp $
*
* Device driver for Microgate SyncLink ISA and PCI
* high speed multiprotocol serial adapters.
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-#define VERSION(ver,rel,seq) (((ver)<<16) | ((rel)<<8) | (seq))
#if defined(__i386__)
# define BREAKPOINT() asm(" int $3");
#else
#include <linux/termios.h>
#include <linux/workqueue.h>
#include <linux/hdlc.h>
+#include <linux/dma-mapping.h>
#ifdef CONFIG_HDLC_MODULE
#define CONFIG_HDLC 1
#define RCLRVALUE 0xffff
-MGSL_PARAMS default_params = {
+static MGSL_PARAMS default_params = {
MGSL_MODE_HDLC, /* unsigned long mode */
0, /* unsigned char loopback; */
HDLC_FLAG_UNDERRUN_ABORT15, /* unsigned short flags; */
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 */
u32 phys_entry; /* physical address of this buffer entry */
+ dma_addr_t dma_addr;
} DMABUFFERENTRY, *DMAPBUFFERENTRY;
/* The queue of BH actions to be performed */
int ri_chkcount;
char *buffer_list; /* virtual address of Rx & Tx buffer lists */
- unsigned long buffer_list_phys;
+ u32 buffer_list_phys;
+ dma_addr_t buffer_list_dma_addr;
unsigned int rx_buffer_count; /* count of total allocated Rx buffers */
DMABUFFERENTRY *rx_buffer_list; /* list of receive buffer entries */
#define usc_EnableReceiver(a,b) \
usc_OutReg( (a), RMR, (u16)((usc_InReg((a),RMR) & 0xfffc) | (b)) )
-u16 usc_InDmaReg( struct mgsl_struct *info, u16 Port );
-void usc_OutDmaReg( struct mgsl_struct *info, u16 Port, u16 Value );
-void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd );
+static u16 usc_InDmaReg( struct mgsl_struct *info, u16 Port );
+static void usc_OutDmaReg( struct mgsl_struct *info, u16 Port, u16 Value );
+static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd );
-u16 usc_InReg( struct mgsl_struct *info, u16 Port );
-void usc_OutReg( struct mgsl_struct *info, u16 Port, u16 Value );
-void usc_RTCmd( struct mgsl_struct *info, u16 Cmd );
+static u16 usc_InReg( struct mgsl_struct *info, u16 Port );
+static void usc_OutReg( struct mgsl_struct *info, u16 Port, u16 Value );
+static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd );
void usc_RCmd( struct mgsl_struct *info, u16 Cmd );
void usc_TCmd( struct mgsl_struct *info, u16 Cmd );
#define usc_SetTransmitSyncChars(a,s0,s1) usc_OutReg((a), TSR, (u16)(((u16)s0<<8)|(u16)s1))
-void usc_process_rxoverrun_sync( struct mgsl_struct *info );
-void usc_start_receiver( struct mgsl_struct *info );
-void usc_stop_receiver( struct mgsl_struct *info );
+static void usc_process_rxoverrun_sync( struct mgsl_struct *info );
+static void usc_start_receiver( struct mgsl_struct *info );
+static void usc_stop_receiver( struct mgsl_struct *info );
-void usc_start_transmitter( struct mgsl_struct *info );
-void usc_stop_transmitter( struct mgsl_struct *info );
-void usc_set_txidle( struct mgsl_struct *info );
-void usc_load_txfifo( struct mgsl_struct *info );
+static void usc_start_transmitter( struct mgsl_struct *info );
+static void usc_stop_transmitter( struct mgsl_struct *info );
+static void usc_set_txidle( struct mgsl_struct *info );
+static void usc_load_txfifo( struct mgsl_struct *info );
-void usc_enable_aux_clock( struct mgsl_struct *info, u32 DataRate );
-void usc_enable_loopback( struct mgsl_struct *info, int enable );
+static void usc_enable_aux_clock( struct mgsl_struct *info, u32 DataRate );
+static void usc_enable_loopback( struct mgsl_struct *info, int enable );
-void usc_get_serial_signals( struct mgsl_struct *info );
-void usc_set_serial_signals( struct mgsl_struct *info );
+static void usc_get_serial_signals( struct mgsl_struct *info );
+static void usc_set_serial_signals( struct mgsl_struct *info );
-void usc_reset( struct mgsl_struct *info );
+static void usc_reset( struct mgsl_struct *info );
-void usc_set_sync_mode( struct mgsl_struct *info );
-void usc_set_sdlc_mode( struct mgsl_struct *info );
-void usc_set_async_mode( struct mgsl_struct *info );
-void usc_enable_async_clock( struct mgsl_struct *info, u32 DataRate );
+static void usc_set_sync_mode( struct mgsl_struct *info );
+static void usc_set_sdlc_mode( struct mgsl_struct *info );
+static void usc_set_async_mode( struct mgsl_struct *info );
+static void usc_enable_async_clock( struct mgsl_struct *info, u32 DataRate );
-void usc_loopback_frame( struct mgsl_struct *info );
+static void usc_loopback_frame( struct mgsl_struct *info );
-void mgsl_tx_timeout(unsigned long context);
+static void mgsl_tx_timeout(unsigned long context);
-void usc_loopmode_cancel_transmit( struct mgsl_struct * info );
-void usc_loopmode_insert_request( struct mgsl_struct * info );
-int usc_loopmode_active( struct mgsl_struct * info);
-void usc_loopmode_send_done( struct mgsl_struct * info );
-int usc_loopmode_send_active( struct mgsl_struct * info );
+static void usc_loopmode_cancel_transmit( struct mgsl_struct * info );
+static void usc_loopmode_insert_request( struct mgsl_struct * info );
+static int usc_loopmode_active( struct mgsl_struct * info);
+static void usc_loopmode_send_done( struct mgsl_struct * info );
-int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg);
+static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg);
#ifdef CONFIG_HDLC
#define dev_to_port(D) (dev_to_hdlc(D)->priv)
((Nrdd) << 11) + \
((Nrad) << 6) )
-void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit);
+static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit);
/*
* Adapter diagnostic routines
*/
-BOOLEAN mgsl_register_test( struct mgsl_struct *info );
-BOOLEAN mgsl_irq_test( struct mgsl_struct *info );
-BOOLEAN mgsl_dma_test( struct mgsl_struct *info );
-BOOLEAN mgsl_memory_test( struct mgsl_struct *info );
-int mgsl_adapter_test( struct mgsl_struct *info );
+static BOOLEAN mgsl_register_test( struct mgsl_struct *info );
+static BOOLEAN mgsl_irq_test( struct mgsl_struct *info );
+static BOOLEAN mgsl_dma_test( struct mgsl_struct *info );
+static BOOLEAN mgsl_memory_test( struct mgsl_struct *info );
+static int mgsl_adapter_test( struct mgsl_struct *info );
/*
* device and resource management routines
*/
-int mgsl_claim_resources(struct mgsl_struct *info);
-void mgsl_release_resources(struct mgsl_struct *info);
-void mgsl_add_device(struct mgsl_struct *info);
-struct mgsl_struct* mgsl_allocate_device(void);
+static int mgsl_claim_resources(struct mgsl_struct *info);
+static void mgsl_release_resources(struct mgsl_struct *info);
+static void mgsl_add_device(struct mgsl_struct *info);
+static struct mgsl_struct* mgsl_allocate_device(void);
/*
* DMA buffer manupulation functions.
*/
-void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex );
-int mgsl_get_rx_frame( struct mgsl_struct *info );
-int mgsl_get_raw_rx_frame( struct mgsl_struct *info );
-void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info );
-void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info );
-int num_free_tx_dma_buffers(struct mgsl_struct *info);
-void mgsl_load_tx_dma_buffer( struct mgsl_struct *info, const char *Buffer, unsigned int BufferSize);
-void mgsl_load_pci_memory(char* TargetPtr, const char* SourcePtr, unsigned short count);
+static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex );
+static int mgsl_get_rx_frame( struct mgsl_struct *info );
+static int mgsl_get_raw_rx_frame( struct mgsl_struct *info );
+static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info );
+static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info );
+static int num_free_tx_dma_buffers(struct mgsl_struct *info);
+static void mgsl_load_tx_dma_buffer( struct mgsl_struct *info, const char *Buffer, unsigned int BufferSize);
+static void mgsl_load_pci_memory(char* TargetPtr, const char* SourcePtr, unsigned short count);
/*
* DMA and Shared Memory buffer allocation and formatting
*/
-int mgsl_allocate_dma_buffers(struct mgsl_struct *info);
-void mgsl_free_dma_buffers(struct mgsl_struct *info);
-int mgsl_alloc_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
-void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
-int mgsl_alloc_buffer_list_memory(struct mgsl_struct *info);
-void mgsl_free_buffer_list_memory(struct mgsl_struct *info);
-int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info);
-void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info);
-int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info);
-void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info);
-int load_next_tx_holding_buffer(struct mgsl_struct *info);
-int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize);
+static int mgsl_allocate_dma_buffers(struct mgsl_struct *info);
+static void mgsl_free_dma_buffers(struct mgsl_struct *info);
+static int mgsl_alloc_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
+static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
+static int mgsl_alloc_buffer_list_memory(struct mgsl_struct *info);
+static void mgsl_free_buffer_list_memory(struct mgsl_struct *info);
+static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info);
+static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info);
+static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info);
+static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info);
+static int load_next_tx_holding_buffer(struct mgsl_struct *info);
+static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize);
/*
* Bottom half interrupt handlers
*/
-void mgsl_bh_handler(void* Context);
-void mgsl_bh_receive(struct mgsl_struct *info);
-void mgsl_bh_transmit(struct mgsl_struct *info);
-void mgsl_bh_status(struct mgsl_struct *info);
+static void mgsl_bh_handler(void* Context);
+static void mgsl_bh_receive(struct mgsl_struct *info);
+static void mgsl_bh_transmit(struct mgsl_struct *info);
+static void mgsl_bh_status(struct mgsl_struct *info);
/*
* Interrupt handler routines and dispatch table.
*/
-void mgsl_isr_null( struct mgsl_struct *info );
-void mgsl_isr_transmit_data( struct mgsl_struct *info );
-void mgsl_isr_receive_data( struct mgsl_struct *info );
-void mgsl_isr_receive_status( struct mgsl_struct *info );
-void mgsl_isr_transmit_status( struct mgsl_struct *info );
-void mgsl_isr_io_pin( struct mgsl_struct *info );
-void mgsl_isr_misc( struct mgsl_struct *info );
-void mgsl_isr_receive_dma( struct mgsl_struct *info );
-void mgsl_isr_transmit_dma( struct mgsl_struct *info );
+static void mgsl_isr_null( struct mgsl_struct *info );
+static void mgsl_isr_transmit_data( struct mgsl_struct *info );
+static void mgsl_isr_receive_data( struct mgsl_struct *info );
+static void mgsl_isr_receive_status( struct mgsl_struct *info );
+static void mgsl_isr_transmit_status( struct mgsl_struct *info );
+static void mgsl_isr_io_pin( struct mgsl_struct *info );
+static void mgsl_isr_misc( struct mgsl_struct *info );
+static void mgsl_isr_receive_dma( struct mgsl_struct *info );
+static void mgsl_isr_transmit_dma( struct mgsl_struct *info );
typedef void (*isr_dispatch_func)(struct mgsl_struct *);
-isr_dispatch_func UscIsrTable[7] =
+static isr_dispatch_func UscIsrTable[7] =
{
mgsl_isr_null,
mgsl_isr_misc,
/*
* Global linked list of SyncLink devices
*/
-struct mgsl_struct *mgsl_device_list;
+static struct mgsl_struct *mgsl_device_list;
static int mgsl_device_count;
/*
static int txdmabufs[MAX_TOTAL_DEVICES];
static int txholdbufs[MAX_TOTAL_DEVICES];
-MODULE_PARM(break_on_load,"i");
-MODULE_PARM(ttymajor,"i");
-MODULE_PARM(io,"1-" __MODULE_STRING(MAX_ISA_DEVICES) "i");
-MODULE_PARM(irq,"1-" __MODULE_STRING(MAX_ISA_DEVICES) "i");
-MODULE_PARM(dma,"1-" __MODULE_STRING(MAX_ISA_DEVICES) "i");
-MODULE_PARM(debug_level,"i");
-MODULE_PARM(maxframe,"1-" __MODULE_STRING(MAX_TOTAL_DEVICES) "i");
-MODULE_PARM(dosyncppp,"1-" __MODULE_STRING(MAX_TOTAL_DEVICES) "i");
-MODULE_PARM(txdmabufs,"1-" __MODULE_STRING(MAX_TOTAL_DEVICES) "i");
-MODULE_PARM(txholdbufs,"1-" __MODULE_STRING(MAX_TOTAL_DEVICES) "i");
+module_param(break_on_load, bool, 0);
+module_param(ttymajor, int, 0);
+module_param_array(io, int, NULL, 0);
+module_param_array(irq, int, NULL, 0);
+module_param_array(dma, int, NULL, 0);
+module_param(debug_level, int, 0);
+module_param_array(maxframe, int, NULL, 0);
+module_param_array(dosyncppp, int, NULL, 0);
+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: 4.38 $";
static int synclink_init_one (struct pci_dev *dev,
const struct pci_device_id *ent);
* (gdb) to get the .text address for the add-symbol-file command.
* This allows remote debugging of dynamically loadable modules.
*/
-void* mgsl_get_text_ptr(void)
+static void* mgsl_get_text_ptr(void)
{
return mgsl_get_text_ptr;
}
* memory if large numbers of serial ports are open.
*/
static unsigned char *tmp_buf;
-static DECLARE_MUTEX(tmp_buf_sem);
static inline int mgsl_paranoia_check(struct mgsl_struct *info,
char *name, const char *routine)
/* mgsl_bh_action() Return next bottom half action to perform.
* Return Value: BH action code or 0 if nothing to do.
*/
-int mgsl_bh_action(struct mgsl_struct *info)
+static int mgsl_bh_action(struct mgsl_struct *info)
{
unsigned long flags;
int rc = 0;
/*
* Perform bottom half processing of work items queued by ISR.
*/
-void mgsl_bh_handler(void* Context)
+static void mgsl_bh_handler(void* Context)
{
struct mgsl_struct *info = (struct mgsl_struct*)Context;
int action;
__FILE__,__LINE__,info->device_name);
}
-void mgsl_bh_receive(struct mgsl_struct *info)
+static void mgsl_bh_receive(struct mgsl_struct *info)
{
int (*get_rx_frame)(struct mgsl_struct *info) =
(info->params.mode == MGSL_MODE_HDLC ? mgsl_get_rx_frame : mgsl_get_raw_rx_frame);
} while(get_rx_frame(info));
}
-void mgsl_bh_transmit(struct mgsl_struct *info)
+static void mgsl_bh_transmit(struct mgsl_struct *info)
{
struct tty_struct *tty = info->tty;
unsigned long flags;
spin_unlock_irqrestore(&info->irq_spinlock,flags);
}
-void mgsl_bh_status(struct mgsl_struct *info)
+static void mgsl_bh_status(struct mgsl_struct *info)
{
if ( debug_level >= DEBUG_LEVEL_BH )
printk( "%s(%d):mgsl_bh_status() entry on %s\n",
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_receive_status( struct mgsl_struct *info )
+static void mgsl_isr_receive_status( struct mgsl_struct *info )
{
u16 status = usc_InReg( info, RCSR );
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_transmit_status( struct mgsl_struct *info )
+static void mgsl_isr_transmit_status( struct mgsl_struct *info )
{
u16 status = usc_InReg( info, TCSR );
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_io_pin( struct mgsl_struct *info )
+static void mgsl_isr_io_pin( struct mgsl_struct *info )
{
struct mgsl_icount *icount;
u16 status = usc_InReg( info, MISR );
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_transmit_data( struct mgsl_struct *info )
+static void mgsl_isr_transmit_data( struct mgsl_struct *info )
{
if ( debug_level >= DEBUG_LEVEL_ISR )
printk("%s(%d):mgsl_isr_transmit_data xmit_cnt=%d\n",
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_receive_data( struct mgsl_struct *info )
+static void mgsl_isr_receive_data( struct mgsl_struct *info )
{
int Fifocount;
u16 status;
+ int work = 0;
unsigned char DataByte;
struct tty_struct *tty = info->tty;
struct mgsl_icount *icount = &info->icount;
/* flush the receive FIFO */
while( (Fifocount = (usc_InReg(info,RICR) >> 8)) ) {
+ int flag;
+
/* read one byte from RxFIFO */
outw( (inw(info->io_base + CCAR) & 0x0780) | (RDR+LSBONLY),
info->io_base + CCAR );
RXSTATUS_OVERRUN + RXSTATUS_BREAK_RECEIVED) )
usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
- continue;
-
- *tty->flip.char_buf_ptr = DataByte;
icount->rx++;
- *tty->flip.flag_buf_ptr = 0;
+ flag = 0;
if ( status & (RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR +
RXSTATUS_OVERRUN + RXSTATUS_BREAK_RECEIVED) ) {
printk("rxerr=%04X\n",status);
status &= info->read_status_mask;
if (status & RXSTATUS_BREAK_RECEIVED) {
- *tty->flip.flag_buf_ptr = TTY_BREAK;
+ flag = TTY_BREAK;
if (info->flags & ASYNC_SAK)
do_SAK(tty);
} else if (status & RXSTATUS_PARITY_ERROR)
- *tty->flip.flag_buf_ptr = TTY_PARITY;
+ flag = TTY_PARITY;
else if (status & RXSTATUS_FRAMING_ERROR)
- *tty->flip.flag_buf_ptr = TTY_FRAME;
- if (status & RXSTATUS_OVERRUN) {
- /* Overrun is special, since it's
- * reported immediately, and doesn't
- * affect the current character
- */
- if (tty->flip.count < TTY_FLIPBUF_SIZE) {
- tty->flip.count++;
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- *tty->flip.flag_buf_ptr = TTY_OVERRUN;
- }
- }
+ flag = TTY_FRAME;
} /* end of if (error) */
-
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
+ tty_insert_flip_char(tty, DataByte, flag);
+ if (status & RXSTATUS_OVERRUN) {
+ /* Overrun is special, since it's
+ * reported immediately, and doesn't
+ * affect the current character
+ */
+ work += tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+ }
}
if ( debug_level >= DEBUG_LEVEL_ISR ) {
- printk("%s(%d):mgsl_isr_receive_data flip count=%d\n",
- __FILE__,__LINE__,tty->flip.count);
printk("%s(%d):rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
__FILE__,__LINE__,icount->rx,icount->brk,
icount->parity,icount->frame,icount->overrun);
}
- if ( tty->flip.count )
+ if(work)
tty_flip_buffer_push(tty);
}
* Arguments: info pointer to device extension (instance data)
* Return Value: None
*/
-void mgsl_isr_misc( struct mgsl_struct *info )
+static void mgsl_isr_misc( struct mgsl_struct *info )
{
u16 status = usc_InReg( info, MISR );
* Arguments: info pointer to device extension (instance data)
* Return Value: None
*/
-void mgsl_isr_null( struct mgsl_struct *info )
+static void mgsl_isr_null( struct mgsl_struct *info )
{
} /* end of mgsl_isr_null() */
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_receive_dma( struct mgsl_struct *info )
+static void mgsl_isr_receive_dma( struct mgsl_struct *info )
{
u16 status;
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_isr_transmit_dma( struct mgsl_struct *info )
+static void mgsl_isr_transmit_dma( struct mgsl_struct *info )
{
u16 status;
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;
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;
return mgsl_ioctl_common(info, cmd, arg);
}
-int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg)
+static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg)
{
int error;
struct mgsl_icount cnow; /* kernel counter temps */
*
* Return Value:
*/
-int mgsl_read_proc(char *page, char **start, off_t off, int count,
+static int mgsl_read_proc(char *page, char **start, off_t off, int count,
int *eof, void *data)
{
int len = 0, l;
* Arguments: info pointer to device instance data
* Return Value: 0 if success, otherwise error
*/
-int mgsl_allocate_dma_buffers(struct mgsl_struct *info)
+static int mgsl_allocate_dma_buffers(struct mgsl_struct *info)
{
unsigned short BuffersPerFrame;
* Arguments: info pointer to device instance data
* Return Value: 0 if success, otherwise error
*/
-int mgsl_alloc_buffer_list_memory( struct mgsl_struct *info )
+static int mgsl_alloc_buffer_list_memory( struct mgsl_struct *info )
{
unsigned int i;
/* inspect portions of the buffer while other portions are being */
/* updated by the adapter using Bus Master DMA. */
- info->buffer_list = kmalloc(BUFFERLISTSIZE, GFP_KERNEL | GFP_DMA);
- if ( info->buffer_list == NULL )
+ info->buffer_list = dma_alloc_coherent(NULL, BUFFERLISTSIZE, &info->buffer_list_dma_addr, GFP_KERNEL);
+ if (info->buffer_list == NULL)
return -ENOMEM;
-
- info->buffer_list_phys = isa_virt_to_bus(info->buffer_list);
+ info->buffer_list_phys = (u32)(info->buffer_list_dma_addr);
}
/* We got the memory for the buffer entry lists. */
* the buffer list contains the information necessary to free
* the individual buffers!
*/
-void mgsl_free_buffer_list_memory( struct mgsl_struct *info )
+static void mgsl_free_buffer_list_memory( struct mgsl_struct *info )
{
- if ( info->buffer_list && info->bus_type != MGSL_BUS_TYPE_PCI )
- kfree(info->buffer_list);
+ if (info->buffer_list && info->bus_type != MGSL_BUS_TYPE_PCI)
+ dma_free_coherent(NULL, BUFFERLISTSIZE, info->buffer_list, info->buffer_list_dma_addr);
info->buffer_list = NULL;
info->rx_buffer_list = NULL;
*
* Return Value: 0 if success, otherwise -ENOMEM
*/
-int mgsl_alloc_frame_memory(struct mgsl_struct *info,DMABUFFERENTRY *BufferList,int Buffercount)
+static int mgsl_alloc_frame_memory(struct mgsl_struct *info,DMABUFFERENTRY *BufferList,int Buffercount)
{
int i;
- unsigned long phys_addr;
+ u32 phys_addr;
/* Allocate page sized buffers for the receive buffer list */
info->last_mem_alloc += DMABUFFERSIZE;
} else {
/* ISA adapter uses system memory. */
- BufferList[i].virt_addr =
- kmalloc(DMABUFFERSIZE, GFP_KERNEL | GFP_DMA);
- if ( BufferList[i].virt_addr == NULL )
+ BufferList[i].virt_addr = dma_alloc_coherent(NULL, DMABUFFERSIZE, &BufferList[i].dma_addr, GFP_KERNEL);
+ if (BufferList[i].virt_addr == NULL)
return -ENOMEM;
- phys_addr = isa_virt_to_bus(BufferList[i].virt_addr);
+ phys_addr = (u32)(BufferList[i].dma_addr);
}
BufferList[i].phys_addr = phys_addr;
}
*
* Return Value: None
*/
-void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList, int Buffercount)
+static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList, int Buffercount)
{
int i;
for ( i = 0 ; i < Buffercount ; i++ ) {
if ( BufferList[i].virt_addr ) {
if ( info->bus_type != MGSL_BUS_TYPE_PCI )
- kfree(BufferList[i].virt_addr);
+ dma_free_coherent(NULL, DMABUFFERSIZE, BufferList[i].virt_addr, BufferList[i].dma_addr);
BufferList[i].virt_addr = NULL;
}
}
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_free_dma_buffers( struct mgsl_struct *info )
+static void mgsl_free_dma_buffers( struct mgsl_struct *info )
{
mgsl_free_frame_memory( info, info->rx_buffer_list, info->rx_buffer_count );
mgsl_free_frame_memory( info, info->tx_buffer_list, info->tx_buffer_count );
*
* Return Value: 0 if success, otherwise -ENOMEM
*/
-int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info)
+static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info)
{
info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA);
if ( info->intermediate_rxbuffer == NULL )
*
* Return Value: None
*/
-void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info)
+static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info)
{
- if ( info->intermediate_rxbuffer )
- kfree(info->intermediate_rxbuffer);
-
+ kfree(info->intermediate_rxbuffer);
info->intermediate_rxbuffer = NULL;
} /* end of mgsl_free_intermediate_rxbuffer_memory() */
*
* Return Value: 0 if success, otherwise -ENOMEM
*/
-int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info)
+static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info)
{
int i;
*
* Return Value: None
*/
-void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info)
+static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info)
{
int i;
for ( i=0; i<info->num_tx_holding_buffers; ++i ) {
- if ( info->tx_holding_buffers[i].buffer ) {
- kfree(info->tx_holding_buffers[i].buffer);
- info->tx_holding_buffers[i].buffer=NULL;
- }
+ kfree(info->tx_holding_buffers[i].buffer);
+ info->tx_holding_buffers[i].buffer = NULL;
}
info->get_tx_holding_index = 0;
* into adapter's tx dma buffer,
* 0 otherwise
*/
-int load_next_tx_holding_buffer(struct mgsl_struct *info)
+static int load_next_tx_holding_buffer(struct mgsl_struct *info)
{
int ret = 0;
*
* Return Value: 1 if able to store, 0 otherwise
*/
-int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize)
+static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize)
{
struct tx_holding_buffer *ptx;
return 1;
}
-int mgsl_claim_resources(struct mgsl_struct *info)
+static int mgsl_claim_resources(struct mgsl_struct *info)
{
if (request_region(info->io_base,info->io_addr_size,"synclink") == NULL) {
printk( "%s(%d):I/O address conflict on device %s Addr=%08X\n",
} /* end of mgsl_claim_resources() */
-void mgsl_release_resources(struct mgsl_struct *info)
+static void mgsl_release_resources(struct mgsl_struct *info)
{
if ( debug_level >= DEBUG_LEVEL_INFO )
printk( "%s(%d):mgsl_release_resources(%s) entry\n",
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_add_device( struct mgsl_struct *info )
+static void mgsl_add_device( struct mgsl_struct *info )
{
info->next_device = NULL;
info->line = mgsl_device_count;
* Arguments: none
* Return Value: pointer to mgsl_struct if success, otherwise NULL
*/
-struct mgsl_struct* mgsl_allocate_device(void)
+static struct mgsl_struct* mgsl_allocate_device(void)
{
struct mgsl_struct *info;
*
* None
*/
-void usc_RTCmd( struct mgsl_struct *info, u16 Cmd )
+static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd )
{
/* output command to CCAR in bits <15..11> */
/* preserve bits <10..7>, bits <6..0> must be zero */
*
* None
*/
-void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd )
+static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd )
{
/* write command mask to DCAR */
outw( Cmd + info->mbre_bit, info->io_base );
* None
*
*/
-void usc_OutDmaReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
+static void usc_OutDmaReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
{
/* Note: The DCAR is located at the adapter base address */
/* Note: must preserve state of BIT8 in DCAR */
* The 16-bit value read from register
*
*/
-u16 usc_InDmaReg( struct mgsl_struct *info, u16 RegAddr )
+static u16 usc_InDmaReg( struct mgsl_struct *info, u16 RegAddr )
{
/* Note: The DCAR is located at the adapter base address */
/* Note: must preserve state of BIT8 in DCAR */
* None
*
*/
-void usc_OutReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
+static void usc_OutReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
{
outw( RegAddr + info->loopback_bits, info->io_base + CCAR );
outw( RegValue, info->io_base + CCAR );
*
* 16-bit value read from register
*/
-u16 usc_InReg( struct mgsl_struct *info, u16 RegAddr )
+static u16 usc_InReg( struct mgsl_struct *info, u16 RegAddr )
{
outw( RegAddr + info->loopback_bits, info->io_base + CCAR );
return inw( info->io_base + CCAR );
* Arguments: info pointer to device instance data
* Return Value: NONE
*/
-void usc_set_sdlc_mode( struct mgsl_struct *info )
+static void usc_set_sdlc_mode( struct mgsl_struct *info )
{
u16 RegValue;
int PreSL1660;
* enable 1 = enable loopback, 0 = disable
* Return Value: None
*/
-void usc_enable_loopback(struct mgsl_struct *info, int enable)
+static void usc_enable_loopback(struct mgsl_struct *info, int enable)
{
if (enable) {
/* blank external TXD output */
*
* Return Value: None
*/
-void usc_enable_aux_clock( struct mgsl_struct *info, u32 data_rate )
+static void usc_enable_aux_clock( struct mgsl_struct *info, u32 data_rate )
{
u32 XtalSpeed;
u16 Tc;
*
* Return Value: None
*/
-void usc_process_rxoverrun_sync( struct mgsl_struct *info )
+static void usc_process_rxoverrun_sync( struct mgsl_struct *info )
{
int start_index;
int end_index;
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_stop_receiver( struct mgsl_struct *info )
+static void usc_stop_receiver( struct mgsl_struct *info )
{
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):usc_stop_receiver(%s)\n",
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_start_receiver( struct mgsl_struct *info )
+static void usc_start_receiver( struct mgsl_struct *info )
{
u32 phys_addr;
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_start_transmitter( struct mgsl_struct *info )
+static void usc_start_transmitter( struct mgsl_struct *info )
{
u32 phys_addr;
unsigned int FrameSize;
* Arguments: info pointer to device isntance data
* Return Value: None
*/
-void usc_stop_transmitter( struct mgsl_struct *info )
+static void usc_stop_transmitter( struct mgsl_struct *info )
{
if (debug_level >= DEBUG_LEVEL_ISR)
printk("%s(%d):usc_stop_transmitter(%s)\n",
* Arguments: info pointer to device extension (instance data)
* Return Value: None
*/
-void usc_load_txfifo( struct mgsl_struct *info )
+static void usc_load_txfifo( struct mgsl_struct *info )
{
int Fifocount;
u8 TwoBytes[2];
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_reset( struct mgsl_struct *info )
+static void usc_reset( struct mgsl_struct *info )
{
if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
int i;
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_set_async_mode( struct mgsl_struct *info )
+static void usc_set_async_mode( struct mgsl_struct *info )
{
u16 RegValue;
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()
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_loopback_frame( struct mgsl_struct *info )
+static void usc_loopback_frame( struct mgsl_struct *info )
{
int i;
unsigned long oldmode = info->params.mode;
* Arguments: info pointer to adapter info structure
* Return Value: None
*/
-void usc_set_sync_mode( struct mgsl_struct *info )
+static void usc_set_sync_mode( struct mgsl_struct *info )
{
usc_loopback_frame( info );
usc_set_sdlc_mode( info );
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_set_txidle( struct mgsl_struct *info )
+static void usc_set_txidle( struct mgsl_struct *info )
{
u16 usc_idle_mode = IDLEMODE_FLAGS;
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_get_serial_signals( struct mgsl_struct *info )
+static void usc_get_serial_signals( struct mgsl_struct *info )
{
u16 status;
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void usc_set_serial_signals( struct mgsl_struct *info )
+static void usc_set_serial_signals( struct mgsl_struct *info )
{
u16 Control;
unsigned char V24Out = info->serial_signals;
* 0 disables the AUX clock.
* Return Value: None
*/
-void usc_enable_async_clock( struct mgsl_struct *info, u32 data_rate )
+static void usc_enable_async_clock( struct mgsl_struct *info, u32 data_rate )
{
if ( data_rate ) {
/*
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info )
+static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info )
{
unsigned int i;
* Arguments: info pointer to device instance data
* Return Value: number of free tx dma buffers
*/
-int num_free_tx_dma_buffers(struct mgsl_struct *info)
+static int num_free_tx_dma_buffers(struct mgsl_struct *info)
{
return info->tx_buffer_count - info->tx_dma_buffers_used;
}
* Arguments: info pointer to device instance data
* Return Value: None
*/
-void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info )
+static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info )
{
unsigned int i;
*
* Return Value: None
*/
-void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex )
+static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex )
{
int Done = 0;
DMABUFFERENTRY *pBufEntry;
* Arguments: info pointer to device extension
* Return Value: 1 if frame returned, otherwise 0
*/
-int mgsl_get_rx_frame(struct mgsl_struct *info)
+static int mgsl_get_rx_frame(struct mgsl_struct *info)
{
unsigned int StartIndex, EndIndex; /* index of 1st and last buffers of Rx frame */
unsigned short status;
* Arguments: info pointer to device extension
* Return Value: 1 if frame returned, otherwise 0
*/
-int mgsl_get_raw_rx_frame(struct mgsl_struct *info)
+static int mgsl_get_raw_rx_frame(struct mgsl_struct *info)
{
unsigned int CurrentIndex, NextIndex;
unsigned short status;
*
* Return Value: None
*/
-void mgsl_load_tx_dma_buffer(struct mgsl_struct *info, const char *Buffer,
- unsigned int BufferSize)
+static void mgsl_load_tx_dma_buffer(struct mgsl_struct *info,
+ const char *Buffer, unsigned int BufferSize)
{
unsigned short Copycount;
unsigned int i = 0;
* Arguments: info pointer to device instance data
* Return Value: TRUE if test passed, otherwise FALSE
*/
-BOOLEAN mgsl_register_test( struct mgsl_struct *info )
+static BOOLEAN mgsl_register_test( struct mgsl_struct *info )
{
static unsigned short BitPatterns[] =
{ 0x0000, 0xffff, 0xaaaa, 0x5555, 0x1234, 0x6969, 0x9696, 0x0f0f };
- static unsigned int Patterncount = sizeof(BitPatterns)/sizeof(unsigned short);
+ static unsigned int Patterncount = ARRAY_SIZE(BitPatterns);
unsigned int i;
BOOLEAN rc = TRUE;
unsigned long flags;
* Arguments: info pointer to device instance data
* Return Value: TRUE if test passed, otherwise FALSE
*/
-BOOLEAN mgsl_irq_test( struct mgsl_struct *info )
+static BOOLEAN mgsl_irq_test( struct mgsl_struct *info )
{
unsigned long EndTime;
unsigned long flags;
* Arguments: info pointer to device instance data
* Return Value: TRUE if test passed, otherwise FALSE
*/
-BOOLEAN mgsl_dma_test( struct mgsl_struct *info )
+static BOOLEAN mgsl_dma_test( struct mgsl_struct *info )
{
unsigned short FifoLevel;
unsigned long phys_addr;
* Arguments: info pointer to device instance data
* Return Value: 0 if success, otherwise -ENODEV
*/
-int mgsl_adapter_test( struct mgsl_struct *info )
+static int mgsl_adapter_test( struct mgsl_struct *info )
{
if ( debug_level >= DEBUG_LEVEL_INFO )
printk( "%s(%d):Testing device %s\n",
* Arguments: info pointer to device instance data
* Return Value: TRUE if test passed, otherwise FALSE
*/
-BOOLEAN mgsl_memory_test( struct mgsl_struct *info )
+static BOOLEAN mgsl_memory_test( struct mgsl_struct *info )
{
- static unsigned long BitPatterns[] = { 0x0, 0x55555555, 0xaaaaaaaa,
- 0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
- unsigned long Patterncount = sizeof(BitPatterns)/sizeof(unsigned long);
+ static unsigned long BitPatterns[] =
+ { 0x0, 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
+ unsigned long Patterncount = ARRAY_SIZE(BitPatterns);
unsigned long i;
unsigned long TestLimit = SHARED_MEM_ADDRESS_SIZE/sizeof(unsigned long);
unsigned long * TestAddr;
*
* Return Value: None
*/
-void mgsl_load_pci_memory( char* TargetPtr, const char* SourcePtr,
+static void mgsl_load_pci_memory( char* TargetPtr, const char* SourcePtr,
unsigned short count )
{
/* 16 32-bit writes @ 60ns each = 960ns max latency on local bus */
} /* End Of mgsl_load_pci_memory() */
-void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit)
+static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit)
{
int i;
int linecount;
* Arguments: context pointer to device instance data
* Return Value: None
*/
-void mgsl_tx_timeout(unsigned long context)
+static void mgsl_tx_timeout(unsigned long context)
{
struct mgsl_struct *info = (struct mgsl_struct*)context;
unsigned long flags;
/* release the line by echoing RxD to TxD
* upon completion of a transmit frame
*/
-void usc_loopmode_send_done( struct mgsl_struct * info )
+static void usc_loopmode_send_done( struct mgsl_struct * info )
{
info->loopmode_send_done_requested = FALSE;
/* clear CMR:13 to 0 to start echoing RxData to TxData */
/* abort a transmit in progress while in HDLC LoopMode
*/
-void usc_loopmode_cancel_transmit( struct mgsl_struct * info )
+static void usc_loopmode_cancel_transmit( struct mgsl_struct * info )
{
/* reset tx dma channel and purge TxFifo */
usc_RTCmd( info, RTCmd_PurgeTxFifo );
* is an Insert Into Loop action. Upon receipt of a GoAhead sequence (RxAbort)
* we must clear CMR:13 to begin repeating TxData to RxData
*/
-void usc_loopmode_insert_request( struct mgsl_struct * info )
+static void usc_loopmode_insert_request( struct mgsl_struct * info )
{
info->loopmode_insert_requested = TRUE;
/* return 1 if station is inserted into the loop, otherwise 0
*/
-int usc_loopmode_active( struct mgsl_struct * info)
+static int usc_loopmode_active( struct mgsl_struct * info)
{
return usc_InReg( info, CCSR ) & BIT7 ? 1 : 0 ;
}
-/* return 1 if USC is in loop send mode, otherwise 0
- */
-int usc_loopmode_send_active( struct mgsl_struct * info )
-{
- return usc_InReg( info, CCSR ) & BIT6 ? 1 : 0 ;
-}
-
#ifdef CONFIG_HDLC
/**
git://git.onelab.eu / linux-2.6.git / blobdiff