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提交 03f0dbf7 编写于 作者: A Alan Cox 提交者： Linus Torvalds
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tty-usb-io_edgeport: Coding style 

Signed-off-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 4da1a17d
隐藏空白更改
内联 并排
Showing with 1023 addition and 806 deletion
drivers/usb/serial/io_edgeport.c
浏览文件 @ 03f0dbf7
......@@ -44,7 +44,7 @@
#include <linux/wait.h>
#include <linux/firmware.h>
#include <linux/ihex.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include "io_edgeport.h"
......@@ -66,16 +66,16 @@
/* receive port state */
enum RXSTATE {
EXPECT_HDR1 = 0, /* Expect header byte 1 */
EXPECT_HDR2 = 1, /* Expect header byte 2 */
EXPECT_DATA = 2, /* Expect 'RxBytesRemaining' data */
EXPECT_HDR3 = 3, /* Expect header byte 3 (for status hdrs only) */
EXPECT_HDR1 = 0, /* Expect header byte 1 */
EXPECT_HDR2 = 1, /* Expect header byte 2 */
EXPECT_DATA = 2, /* Expect 'RxBytesRemaining' data */
EXPECT_HDR3 = 3, /* Expect header byte 3 (for status hdrs only) */
};
/* Transmit Fifo
* This Transmit queue is an extension of the edgeport Rx buffer.
* The maximum amount of data buffered in both the edgeport
/* Transmit Fifo
* This Transmit queue is an extension of the edgeport Rx buffer.
* The maximum amount of data buffered in both the edgeport
* Rx buffer (maxTxCredits) and this buffer will never exceed maxTxCredits.
*/
struct TxFifo {
......@@ -132,12 +132,12 @@ struct edgeport_serial {
int is_epic; /* flag if EPiC device or not */
__u8 interrupt_in_endpoint; /* the interrupt endpoint handle */
unsigned char * interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */
struct urb * interrupt_read_urb; /* our interrupt urb */
unsigned char *interrupt_in_buffer; /* the buffer we use for the interrupt endpoint */
struct urb *interrupt_read_urb; /* our interrupt urb */
__u8 bulk_in_endpoint; /* the bulk in endpoint handle */
unsigned char * bulk_in_buffer; /* the buffer we use for the bulk in endpoint */
struct urb * read_urb; /* our bulk read urb */
unsigned char *bulk_in_buffer; /* the buffer we use for the bulk in endpoint */
struct urb *read_urb; /* our bulk read urb */
bool read_in_progress;
spinlock_t es_lock;
......@@ -162,16 +162,17 @@ struct divisor_table_entry {
__u16 Divisor;
};
//
// Define table of divisors for Rev A EdgePort/4 hardware
// These assume a 3.6864MHz crystal, the standard /16, and
// MCR.7 = 0.
//
/*
* Define table of divisors for Rev A EdgePort/4 hardware
* These assume a 3.6864MHz crystal, the standard /16, and
* MCR.7 = 0.
*/
static const struct divisor_table_entry divisor_table[] = {
{ 50, 4608},
{ 75, 3072},
{ 110, 2095}, /* 2094.545455 => 230450 => .0217 % over */
{ 134, 1713}, /* 1713.011152 => 230398.5 => .00065% under */
{ 50, 4608},
{ 75, 3072},
{ 110, 2095}, /* 2094.545455 => 230450 => .0217 % over */
{ 134, 1713}, /* 1713.011152 => 230398.5 => .00065% under */
{ 150, 1536},
{ 300, 768},
{ 600, 384},
......@@ -194,65 +195,86 @@ static int debug;
static int low_latency = 1; /* tty low latency flag, on by default */
static atomic_t CmdUrbs; /* Number of outstanding Command Write Urbs */
static atomic_t CmdUrbs; /* Number of outstanding Command Write Urbs */
/* local function prototypes */
/* function prototypes for all URB callbacks */
static void edge_interrupt_callback (struct urb *urb);
static void edge_bulk_in_callback (struct urb *urb);
static void edge_bulk_out_data_callback (struct urb *urb);
static void edge_bulk_out_cmd_callback (struct urb *urb);
static void edge_interrupt_callback(struct urb *urb);
static void edge_bulk_in_callback(struct urb *urb);
static void edge_bulk_out_data_callback(struct urb *urb);
static void edge_bulk_out_cmd_callback(struct urb *urb);
/* function prototypes for the usbserial callbacks */
static int edge_open (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
static void edge_close (struct tty_struct *tty, struct usb_serial_port *port, struct file *filp);
static int edge_write (struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count);
static int edge_write_room (struct tty_struct *tty);
static int edge_chars_in_buffer (struct tty_struct *tty);
static void edge_throttle (struct tty_struct *tty);
static void edge_unthrottle (struct tty_struct *tty);
static void edge_set_termios (struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios);
static int edge_ioctl (struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
static void edge_break (struct tty_struct *tty, int break_state);
static int edge_tiocmget (struct tty_struct *tty, struct file *file);
static int edge_tiocmset (struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
static int edge_startup (struct usb_serial *serial);
static void edge_shutdown (struct usb_serial *serial);
static int edge_open(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
static void edge_close(struct tty_struct *tty, struct usb_serial_port *port,
struct file *filp);
static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *buf, int count);
static int edge_write_room(struct tty_struct *tty);
static int edge_chars_in_buffer(struct tty_struct *tty);
static void edge_throttle(struct tty_struct *tty);
static void edge_unthrottle(struct tty_struct *tty);
static void edge_set_termios(struct tty_struct *tty,
struct usb_serial_port *port,
struct ktermios *old_termios);
static int edge_ioctl(struct tty_struct *tty, struct file *file,
unsigned int cmd, unsigned long arg);
static void edge_break(struct tty_struct *tty, int break_state);
static int edge_tiocmget(struct tty_struct *tty, struct file *file);
static int edge_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static int edge_startup(struct usb_serial *serial);
static void edge_shutdown(struct usb_serial *serial);
#include "io_tables.h" /* all of the devices that this driver supports */
/* function prototypes for all of our local functions */
static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned char *buffer, __u16 bufferLength);
static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2, __u8 byte3);
static void edge_tty_recv (struct device *dev, struct tty_struct *tty, unsigned char *data, int length);
static void handle_new_msr (struct edgeport_port *edge_port, __u8 newMsr);
static void handle_new_lsr (struct edgeport_port *edge_port, __u8 lsrData, __u8 lsr, __u8 data);
static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u8 param);
static int calc_baud_rate_divisor (int baud_rate, int *divisor);
static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRate);
static void change_port_settings (struct tty_struct *tty, struct edgeport_port *edge_port,
struct ktermios *old_termios);
static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 regNum, __u8 regValue);
static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer, int writeLength);
static void send_more_port_data (struct edgeport_serial *edge_serial, struct edgeport_port *edge_port);
static int sram_write (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data);
static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, __u8 *data);
static int rom_write (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data);
static void get_manufacturing_desc (struct edgeport_serial *edge_serial);
static void get_boot_desc (struct edgeport_serial *edge_serial);
static void load_application_firmware (struct edgeport_serial *edge_serial);
static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unicode_size);
// ************************************************************************
// ************************************************************************
// ************************************************************************
// ************************************************************************
static void process_rcvd_data(struct edgeport_serial *edge_serial,
unsigned char *buffer, __u16 bufferLength);
static void process_rcvd_status(struct edgeport_serial *edge_serial,
__u8 byte2, __u8 byte3);
static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
unsigned char *data, int length);
static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr);
static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
__u8 lsr, __u8 data);
static int send_iosp_ext_cmd(struct edgeport_port *edge_port, __u8 command,
__u8 param);
static int calc_baud_rate_divisor(int baud_rate, int *divisor);
static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
int baudRate);
static void change_port_settings(struct tty_struct *tty,
struct edgeport_port *edge_port,
struct ktermios *old_termios);
static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
__u8 regNum, __u8 regValue);
static int write_cmd_usb(struct edgeport_port *edge_port,
unsigned char *buffer, int writeLength);
static void send_more_port_data(struct edgeport_serial *edge_serial,
struct edgeport_port *edge_port);
static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
__u16 length, const __u8 *data);
static int rom_read(struct usb_serial *serial, __u16 extAddr, __u16 addr,
__u16 length, __u8 *data);
static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
__u16 length, const __u8 *data);
static void get_manufacturing_desc(struct edgeport_serial *edge_serial);
static void get_boot_desc(struct edgeport_serial *edge_serial);
static void load_application_firmware(struct edgeport_serial *edge_serial);
static void unicode_to_ascii(char *string, int buflen,
__le16 *unicode, int unicode_size);
/* ************************************************************************ */
/* ************************************************************************ */
/* ************************************************************************ */
/* ************************************************************************ */
/************************************************************************
* *
......@@ -262,7 +284,7 @@ static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unic
* embedded in this driver *
* *
************************************************************************/
static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
static void update_edgeport_E2PROM(struct edgeport_serial *edge_serial)
{
__u32 BootCurVer;
__u32 BootNewVer;
......@@ -276,16 +298,14 @@ static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
int response;
switch (edge_serial->product_info.iDownloadFile) {
case EDGE_DOWNLOAD_FILE_I930:
fw_name = "edgeport/boot.fw";
break;
case EDGE_DOWNLOAD_FILE_80251:
fw_name = "edgeport/boot2.fw";
break;
default:
return;
case EDGE_DOWNLOAD_FILE_I930:
fw_name = "edgeport/boot.fw";
break;
case EDGE_DOWNLOAD_FILE_80251:
fw_name = "edgeport/boot2.fw";
break;
default:
return;
}
response = request_ihex_firmware(&fw, fw_name,
......@@ -301,7 +321,7 @@ static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
BootMinorVersion = rec->data[1];
BootBuildNumber = (rec->data[2] << 8) | rec->data[3];
// Check Boot Image Version
/* Check Boot Image Version */
BootCurVer = (edge_serial->boot_descriptor.MajorVersion << 24) +
(edge_serial->boot_descriptor.MinorVersion << 16) +
le16_to_cpu(edge_serial->boot_descriptor.BuildNumber);
......@@ -353,29 +373,29 @@ static void update_edgeport_E2PROM (struct edgeport_serial *edge_serial)
* Get string descriptor from device *
* *
************************************************************************/
static int get_string (struct usb_device *dev, int Id, char *string, int buflen)
static int get_string(struct usb_device *dev, int Id, char *string, int buflen)
{
struct usb_string_descriptor StringDesc;
struct usb_string_descriptor *pStringDesc;
dbg("%s - USB String ID = %d", __func__, Id );
dbg("%s - USB String ID = %d", __func__, Id);
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc, sizeof(StringDesc))) {
if (!usb_get_descriptor(dev, USB_DT_STRING, Id,
&StringDesc, sizeof(StringDesc)))
return 0;
}
pStringDesc = kmalloc (StringDesc.bLength, GFP_KERNEL);
if (!pStringDesc) {
pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
if (!pStringDesc)
return 0;
}
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc, StringDesc.bLength )) {
if (!usb_get_descriptor(dev, USB_DT_STRING, Id,
pStringDesc, StringDesc.bLength)) {
kfree(pStringDesc);
return 0;
}
unicode_to_ascii(string, buflen, pStringDesc->wData, pStringDesc->bLength/2);
unicode_to_ascii(string, buflen,
pStringDesc->wData, pStringDesc->bLength/2);
kfree(pStringDesc);
dbg("%s - USB String %s", __func__, string);
......@@ -389,24 +409,24 @@ static int get_string (struct usb_device *dev, int Id, char *string, int buflen)
* Get string descriptor from device
*
************************************************************************/
static int get_string_desc (struct usb_device *dev, int Id, struct usb_string_descriptor **pRetDesc)
static int get_string_desc(struct usb_device *dev, int Id,
struct usb_string_descriptor **pRetDesc)
{
struct usb_string_descriptor StringDesc;
struct usb_string_descriptor *pStringDesc;
dbg("%s - USB String ID = %d", __func__, Id );
dbg("%s - USB String ID = %d", __func__, Id);
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc, sizeof(StringDesc))) {
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, &StringDesc,
sizeof(StringDesc)))
return 0;
}
pStringDesc = kmalloc (StringDesc.bLength, GFP_KERNEL);
if (!pStringDesc) {
pStringDesc = kmalloc(StringDesc.bLength, GFP_KERNEL);
if (!pStringDesc)
return -1;
}
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc, StringDesc.bLength )) {
if (!usb_get_descriptor(dev, USB_DT_STRING, Id, pStringDesc,
StringDesc.bLength)) {
kfree(pStringDesc);
return -1;
}
......@@ -418,25 +438,30 @@ static int get_string_desc (struct usb_device *dev, int Id, struct usb_string_de
static void dump_product_info(struct edgeport_product_info *product_info)
{
// Dump Product Info structure
/* Dump Product Info structure */
dbg("**Product Information:");
dbg(" ProductId %x", product_info->ProductId );
dbg(" NumPorts %d", product_info->NumPorts );
dbg(" ProdInfoVer %d", product_info->ProdInfoVer );
dbg(" ProductId %x", product_info->ProductId);
dbg(" NumPorts %d", product_info->NumPorts);
dbg(" ProdInfoVer %d", product_info->ProdInfoVer);
dbg(" IsServer %d", product_info->IsServer);
dbg(" IsRS232 %d", product_info->IsRS232 );
dbg(" IsRS422 %d", product_info->IsRS422 );
dbg(" IsRS485 %d", product_info->IsRS485 );
dbg(" RomSize %d", product_info->RomSize );
dbg(" RamSize %d", product_info->RamSize );
dbg(" CpuRev %x", product_info->CpuRev );
dbg(" IsRS232 %d", product_info->IsRS232);
dbg(" IsRS422 %d", product_info->IsRS422);
dbg(" IsRS485 %d", product_info->IsRS485);
dbg(" RomSize %d", product_info->RomSize);
dbg(" RamSize %d", product_info->RamSize);
dbg(" CpuRev %x", product_info->CpuRev);
dbg(" BoardRev %x", product_info->BoardRev);
dbg(" BootMajorVersion %d.%d.%d", product_info->BootMajorVersion,
product_info->BootMinorVersion,
le16_to_cpu(product_info->BootBuildNumber));
dbg(" ManufactureDescDate %d/%d/%d", product_info->ManufactureDescDate[0],
product_info->ManufactureDescDate[1],
product_info->ManufactureDescDate[2]+1900);
dbg(" FirmwareMajorVersion %d.%d.%d",
product_info->FirmwareMajorVersion,
product_info->FirmwareMinorVersion,
le16_to_cpu(product_info->FirmwareBuildNumber));
dbg(" ManufactureDescDate %d/%d/%d",
product_info->ManufactureDescDate[0],
product_info->ManufactureDescDate[1],
product_info->ManufactureDescDate[2]+1900);
dbg(" iDownloadFile 0x%x", product_info->iDownloadFile);
dbg(" EpicVer %d", product_info->EpicVer);
}
......@@ -445,55 +470,60 @@ static void get_product_info(struct edgeport_serial *edge_serial)
{
struct edgeport_product_info *product_info = &edge_serial->product_info;
memset (product_info, 0, sizeof(struct edgeport_product_info));
product_info->ProductId = (__u16)(le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ~ION_DEVICE_ID_80251_NETCHIP);
product_info->NumPorts = edge_serial->manuf_descriptor.NumPorts;
product_info->ProdInfoVer = 0;
product_info->RomSize = edge_serial->manuf_descriptor.RomSize;
product_info->RamSize = edge_serial->manuf_descriptor.RamSize;
product_info->CpuRev = edge_serial->manuf_descriptor.CpuRev;
product_info->BoardRev = edge_serial->manuf_descriptor.BoardRev;
product_info->BootMajorVersion = edge_serial->boot_descriptor.MajorVersion;
product_info->BootMinorVersion = edge_serial->boot_descriptor.MinorVersion;
product_info->BootBuildNumber = edge_serial->boot_descriptor.BuildNumber;
memcpy(product_info->ManufactureDescDate, edge_serial->manuf_descriptor.DescDate, sizeof(edge_serial->manuf_descriptor.DescDate));
// check if this is 2nd generation hardware
if (le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ION_DEVICE_ID_80251_NETCHIP) {
product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251;
} else {
product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930;
}
// Determine Product type and set appropriate flags
memset(product_info, 0, sizeof(struct edgeport_product_info));
product_info->ProductId = (__u16)(le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct) & ~ION_DEVICE_ID_80251_NETCHIP);
product_info->NumPorts = edge_serial->manuf_descriptor.NumPorts;
product_info->ProdInfoVer = 0;
product_info->RomSize = edge_serial->manuf_descriptor.RomSize;
product_info->RamSize = edge_serial->manuf_descriptor.RamSize;
product_info->CpuRev = edge_serial->manuf_descriptor.CpuRev;
product_info->BoardRev = edge_serial->manuf_descriptor.BoardRev;
product_info->BootMajorVersion =
edge_serial->boot_descriptor.MajorVersion;
product_info->BootMinorVersion =
edge_serial->boot_descriptor.MinorVersion;
product_info->BootBuildNumber =
edge_serial->boot_descriptor.BuildNumber;
memcpy(product_info->ManufactureDescDate,
edge_serial->manuf_descriptor.DescDate,
sizeof(edge_serial->manuf_descriptor.DescDate));
/* check if this is 2nd generation hardware */
if (le16_to_cpu(edge_serial->serial->dev->descriptor.idProduct)
& ION_DEVICE_ID_80251_NETCHIP)
product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_80251;
else
product_info->iDownloadFile = EDGE_DOWNLOAD_FILE_I930;
/* Determine Product type and set appropriate flags */
switch (DEVICE_ID_FROM_USB_PRODUCT_ID(product_info->ProductId)) {
case ION_DEVICE_ID_EDGEPORT_COMPATIBLE:
case ION_DEVICE_ID_EDGEPORT_4T:
case ION_DEVICE_ID_EDGEPORT_4:
case ION_DEVICE_ID_EDGEPORT_2:
case ION_DEVICE_ID_EDGEPORT_8_DUAL_CPU:
case ION_DEVICE_ID_EDGEPORT_8:
case ION_DEVICE_ID_EDGEPORT_421:
case ION_DEVICE_ID_EDGEPORT_21:
case ION_DEVICE_ID_EDGEPORT_2_DIN:
case ION_DEVICE_ID_EDGEPORT_4_DIN:
case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU:
product_info->IsRS232 = 1;
break;
case ION_DEVICE_ID_EDGEPORT_COMPATIBLE:
case ION_DEVICE_ID_EDGEPORT_4T:
case ION_DEVICE_ID_EDGEPORT_4:
case ION_DEVICE_ID_EDGEPORT_2:
case ION_DEVICE_ID_EDGEPORT_8_DUAL_CPU:
case ION_DEVICE_ID_EDGEPORT_8:
case ION_DEVICE_ID_EDGEPORT_421:
case ION_DEVICE_ID_EDGEPORT_21:
case ION_DEVICE_ID_EDGEPORT_2_DIN:
case ION_DEVICE_ID_EDGEPORT_4_DIN:
case ION_DEVICE_ID_EDGEPORT_16_DUAL_CPU:
product_info->IsRS232 = 1;
break;
case ION_DEVICE_ID_EDGEPORT_2I: // Edgeport/2 RS422/RS485
product_info->IsRS422 = 1;
product_info->IsRS485 = 1;
break;
case ION_DEVICE_ID_EDGEPORT_2I: /* Edgeport/2 RS422/RS485 */
product_info->IsRS422 = 1;
product_info->IsRS485 = 1;
break;
case ION_DEVICE_ID_EDGEPORT_8I: // Edgeport/4 RS422
case ION_DEVICE_ID_EDGEPORT_4I: // Edgeport/4 RS422
product_info->IsRS422 = 1;
break;
case ION_DEVICE_ID_EDGEPORT_8I: /* Edgeport/4 RS422 */
case ION_DEVICE_ID_EDGEPORT_4I: /* Edgeport/4 RS422 */
product_info->IsRS422 = 1;
break;
}
dump_product_info(product_info);
......@@ -521,32 +551,32 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
ep->is_epic = 1;
memset(product_info, 0, sizeof(struct edgeport_product_info));
product_info->NumPorts = epic->NumPorts;
product_info->ProdInfoVer = 0;
product_info->FirmwareMajorVersion = epic->MajorVersion;
product_info->FirmwareMinorVersion = epic->MinorVersion;
product_info->FirmwareBuildNumber = epic->BuildNumber;
product_info->iDownloadFile = epic->iDownloadFile;
product_info->EpicVer = epic->EpicVer;
product_info->Epic = epic->Supports;
product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE;
product_info->NumPorts = epic->NumPorts;
product_info->ProdInfoVer = 0;
product_info->FirmwareMajorVersion = epic->MajorVersion;
product_info->FirmwareMinorVersion = epic->MinorVersion;
product_info->FirmwareBuildNumber = epic->BuildNumber;
product_info->iDownloadFile = epic->iDownloadFile;
product_info->EpicVer = epic->EpicVer;
product_info->Epic = epic->Supports;
product_info->ProductId = ION_DEVICE_ID_EDGEPORT_COMPATIBLE;
dump_product_info(product_info);
bits = &ep->epic_descriptor.Supports;
dbg("**EPIC descriptor:");
dbg(" VendEnableSuspend: %s", bits->VendEnableSuspend ? "TRUE": "FALSE");
dbg(" IOSPOpen : %s", bits->IOSPOpen ? "TRUE": "FALSE" );
dbg(" IOSPClose : %s", bits->IOSPClose ? "TRUE": "FALSE" );
dbg(" IOSPChase : %s", bits->IOSPChase ? "TRUE": "FALSE" );
dbg(" IOSPSetRxFlow : %s", bits->IOSPSetRxFlow ? "TRUE": "FALSE" );
dbg(" IOSPSetTxFlow : %s", bits->IOSPSetTxFlow ? "TRUE": "FALSE" );
dbg(" IOSPSetXChar : %s", bits->IOSPSetXChar ? "TRUE": "FALSE" );
dbg(" IOSPRxCheck : %s", bits->IOSPRxCheck ? "TRUE": "FALSE" );
dbg(" IOSPSetClrBreak : %s", bits->IOSPSetClrBreak ? "TRUE": "FALSE" );
dbg(" IOSPWriteMCR : %s", bits->IOSPWriteMCR ? "TRUE": "FALSE" );
dbg(" IOSPWriteLCR : %s", bits->IOSPWriteLCR ? "TRUE": "FALSE" );
dbg(" IOSPSetBaudRate : %s", bits->IOSPSetBaudRate ? "TRUE": "FALSE" );
dbg(" TrueEdgeport : %s", bits->TrueEdgeport ? "TRUE": "FALSE" );
dbg(" IOSPOpen : %s", bits->IOSPOpen ? "TRUE": "FALSE");
dbg(" IOSPClose : %s", bits->IOSPClose ? "TRUE": "FALSE");
dbg(" IOSPChase : %s", bits->IOSPChase ? "TRUE": "FALSE");
dbg(" IOSPSetRxFlow : %s", bits->IOSPSetRxFlow ? "TRUE": "FALSE");
dbg(" IOSPSetTxFlow : %s", bits->IOSPSetTxFlow ? "TRUE": "FALSE");
dbg(" IOSPSetXChar : %s", bits->IOSPSetXChar ? "TRUE": "FALSE");
dbg(" IOSPRxCheck : %s", bits->IOSPRxCheck ? "TRUE": "FALSE");
dbg(" IOSPSetClrBreak : %s", bits->IOSPSetClrBreak ? "TRUE": "FALSE");
dbg(" IOSPWriteMCR : %s", bits->IOSPWriteMCR ? "TRUE": "FALSE");
dbg(" IOSPWriteLCR : %s", bits->IOSPWriteLCR ? "TRUE": "FALSE");
dbg(" IOSPSetBaudRate : %s", bits->IOSPSetBaudRate ? "TRUE": "FALSE");
dbg(" TrueEdgeport : %s", bits->TrueEdgeport ? "TRUE": "FALSE");
}
return result;
......@@ -562,10 +592,10 @@ static int get_epic_descriptor(struct edgeport_serial *ep)
/*****************************************************************************
* edge_interrupt_callback
* this is the callback function for when we have received data on the
* this is the callback function for when we have received data on the
* interrupt endpoint.
*****************************************************************************/
static void edge_interrupt_callback (struct urb *urb)
static void edge_interrupt_callback(struct urb *urb)
{
struct edgeport_serial *edge_serial = urb->context;
struct edgeport_port *edge_port;
......@@ -590,17 +620,17 @@ static void edge_interrupt_callback (struct urb *urb)
case -ESHUTDOWN:
/* this urb is terminated, clean up */
dbg("%s - urb shutting down with status: %d",
__func__, status);
__func__, status);
return;
default:
dbg("%s - nonzero urb status received: %d",
__func__, status);
dbg("%s - nonzero urb status received: %d", __func__, status);
goto exit;
}
// process this interrupt-read even if there are no ports open
/* process this interrupt-read even if there are no ports open */
if (length) {
usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __func__, length, data);
usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
__func__, length, data);
if (length > 1) {
bytes_avail = data[0] | (data[1] << 8);
......@@ -614,7 +644,8 @@ static void edge_interrupt_callback (struct urb *urb)
dbg("%s - posting a read", __func__);
edge_serial->read_in_progress = true;
/* we have pending bytes on the bulk in pipe, send a request */
/* we have pending bytes on the
bulk in pipe, send a request */
edge_serial->read_urb->dev = edge_serial->serial->dev;
result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
if (result) {
......@@ -628,7 +659,8 @@ static void edge_interrupt_callback (struct urb *urb)
/* grab the txcredits for the ports if available */
position = 2;
portNumber = 0;
while ((position < length) && (portNumber < edge_serial->serial->num_ports)) {
while ((position < length) &&
(portNumber < edge_serial->serial->num_ports)) {
txCredits = data[position] | (data[position+1] << 8);
if (txCredits) {
port = edge_serial->serial->port[portNumber];
......@@ -637,14 +669,19 @@ static void edge_interrupt_callback (struct urb *urb)
spin_lock(&edge_port->ep_lock);
edge_port->txCredits += txCredits;
spin_unlock(&edge_port->ep_lock);
dbg("%s - txcredits for port%d = %d", __func__, portNumber, edge_port->txCredits);
dbg("%s - txcredits for port%d = %d",
__func__, portNumber,
edge_port->txCredits);
/* tell the tty driver that something has changed */
/* tell the tty driver that something
has changed */
if (edge_port->port->port.tty)
tty_wakeup(edge_port->port->port.tty);
// Since we have more credit, check if more data can be sent
send_more_port_data(edge_serial, edge_port);
/* Since we have more credit, check
if more data can be sent */
send_more_port_data(edge_serial,
edge_port);
}
}
position += 2;
......@@ -653,19 +690,20 @@ static void edge_interrupt_callback (struct urb *urb)
}
exit:
result = usb_submit_urb (urb, GFP_ATOMIC);
if (result) {
dev_err(&urb->dev->dev, "%s - Error %d submitting control urb\n", __func__, result);
}
result = usb_submit_urb(urb, GFP_ATOMIC);
if (result)
dev_err(&urb->dev->dev,
"%s - Error %d submitting control urb\n",
__func__, result);
}
/*****************************************************************************
* edge_bulk_in_callback
* this is the callback function for when we have received data on the
* this is the callback function for when we have received data on the
* bulk in endpoint.
*****************************************************************************/
static void edge_bulk_in_callback (struct urb *urb)
static void edge_bulk_in_callback(struct urb *urb)
{
struct edgeport_serial *edge_serial = urb->context;
unsigned char *data = urb->transfer_buffer;
......@@ -690,16 +728,18 @@ static void edge_bulk_in_callback (struct urb *urb)
raw_data_length = urb->actual_length;
usb_serial_debug_data(debug, &edge_serial->serial->dev->dev, __func__, raw_data_length, data);
usb_serial_debug_data(debug, &edge_serial->serial->dev->dev,
__func__, raw_data_length, data);
spin_lock(&edge_serial->es_lock);
/* decrement our rxBytes available by the number that we just got */
edge_serial->rxBytesAvail -= raw_data_length;
dbg("%s - Received = %d, rxBytesAvail %d", __func__, raw_data_length, edge_serial->rxBytesAvail);
dbg("%s - Received = %d, rxBytesAvail %d", __func__,
raw_data_length, edge_serial->rxBytesAvail);
process_rcvd_data (edge_serial, data, urb->actual_length);
process_rcvd_data(edge_serial, data, urb->actual_length);
/* check to see if there's any more data for us to read */
if (edge_serial->rxBytesAvail > 0) {
......@@ -722,10 +762,10 @@ static void edge_bulk_in_callback (struct urb *urb)
/*****************************************************************************
* edge_bulk_out_data_callback
* this is the callback function for when we have finished sending serial data
* on the bulk out endpoint.
* this is the callback function for when we have finished sending
* serial data on the bulk out endpoint.
*****************************************************************************/
static void edge_bulk_out_data_callback (struct urb *urb)
static void edge_bulk_out_data_callback(struct urb *urb)
{
struct edgeport_port *edge_port = urb->context;
struct tty_struct *tty;
......@@ -741,24 +781,26 @@ static void edge_bulk_out_data_callback (struct urb *urb)
tty = edge_port->port->port.tty;
if (tty && edge_port->open) {
/* let the tty driver wakeup if it has a special write_wakeup function */
/* let the tty driver wakeup if it has a special
write_wakeup function */
tty_wakeup(tty);
}
// Release the Write URB
/* Release the Write URB */
edge_port->write_in_progress = false;
// Check if more data needs to be sent
send_more_port_data((struct edgeport_serial *)(usb_get_serial_data(edge_port->port->serial)), edge_port);
/* Check if more data needs to be sent */
send_more_port_data((struct edgeport_serial *)
(usb_get_serial_data(edge_port->port->serial)), edge_port);
}
/*****************************************************************************
* BulkOutCmdCallback
* this is the callback function for when we have finished sending a command
* on the bulk out endpoint.
* this is the callback function for when we have finished sending a
* command on the bulk out endpoint.
*****************************************************************************/
static void edge_bulk_out_cmd_callback (struct urb *urb)
static void edge_bulk_out_cmd_callback(struct urb *urb)
{
struct edgeport_port *edge_port = urb->context;
struct tty_struct *tty;
......@@ -767,17 +809,19 @@ static void edge_bulk_out_cmd_callback (struct urb *urb)
dbg("%s", __func__);
atomic_dec(&CmdUrbs);
dbg("%s - FREE URB %p (outstanding %d)", __func__, urb, atomic_read(&CmdUrbs));
dbg("%s - FREE URB %p (outstanding %d)", __func__,
urb, atomic_read(&CmdUrbs));
/* clean up the transfer buffer */
kfree(urb->transfer_buffer);
/* Free the command urb */
usb_free_urb (urb);
usb_free_urb(urb);
if (status) {
dbg("%s - nonzero write bulk status received: %d", __func__, status);
dbg("%s - nonzero write bulk status received: %d",
__func__, status);
return;
}
......@@ -805,7 +849,7 @@ static void edge_bulk_out_cmd_callback (struct urb *urb)
* Otherwise we return a negative error number.
*****************************************************************************/
static int edge_open(struct tty_struct *tty,
struct usb_serial_port *port, struct file * filp)
struct usb_serial_port *port, struct file *filp)
{
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
struct usb_serial *serial;
......@@ -820,51 +864,59 @@ static int edge_open(struct tty_struct *tty,
if (tty)
tty->low_latency = low_latency;
/* see if we've set up our endpoint info yet (can't set it up in edge_startup
as the structures were not set up at that time.) */
/* see if we've set up our endpoint info yet (can't set it up
in edge_startup as the structures were not set up at that time.) */
serial = port->serial;
edge_serial = usb_get_serial_data(serial);
if (edge_serial == NULL)
return -ENODEV;
if (edge_serial->interrupt_in_buffer == NULL) {
struct usb_serial_port *port0 = serial->port[0];
/* not set up yet, so do it now */
edge_serial->interrupt_in_buffer = port0->interrupt_in_buffer;
edge_serial->interrupt_in_endpoint = port0->interrupt_in_endpointAddress;
edge_serial->interrupt_in_buffer =
port0->interrupt_in_buffer;
edge_serial->interrupt_in_endpoint =
port0->interrupt_in_endpointAddress;
edge_serial->interrupt_read_urb = port0->interrupt_in_urb;
edge_serial->bulk_in_buffer = port0->bulk_in_buffer;
edge_serial->bulk_in_endpoint = port0->bulk_in_endpointAddress;
edge_serial->bulk_in_endpoint =
port0->bulk_in_endpointAddress;
edge_serial->read_urb = port0->read_urb;
edge_serial->bulk_out_endpoint = port0->bulk_out_endpointAddress;
edge_serial->bulk_out_endpoint =
port0->bulk_out_endpointAddress;
/* set up our interrupt urb */
usb_fill_int_urb(edge_serial->interrupt_read_urb,
serial->dev,
usb_rcvintpipe(serial->dev,
port0->interrupt_in_endpointAddress),
port0->interrupt_in_buffer,
edge_serial->interrupt_read_urb->transfer_buffer_length,
edge_interrupt_callback, edge_serial,
edge_serial->interrupt_read_urb->interval);
serial->dev,
usb_rcvintpipe(serial->dev,
port0->interrupt_in_endpointAddress),
port0->interrupt_in_buffer,
edge_serial->interrupt_read_urb->transfer_buffer_length,
edge_interrupt_callback, edge_serial,
edge_serial->interrupt_read_urb->interval);
/* set up our bulk in urb */
usb_fill_bulk_urb(edge_serial->read_urb, serial->dev,
usb_rcvbulkpipe(serial->dev,
port0->bulk_in_endpointAddress),
port0->bulk_in_buffer,
edge_serial->read_urb->transfer_buffer_length,
edge_bulk_in_callback, edge_serial);
usb_rcvbulkpipe(serial->dev,
port0->bulk_in_endpointAddress),
port0->bulk_in_buffer,
edge_serial->read_urb->transfer_buffer_length,
edge_bulk_in_callback, edge_serial);
edge_serial->read_in_progress = false;
/* start interrupt read for this edgeport
* this interrupt will continue as long as the edgeport is connected */
response = usb_submit_urb (edge_serial->interrupt_read_urb, GFP_KERNEL);
* this interrupt will continue as long
* as the edgeport is connected */
response = usb_submit_urb(edge_serial->interrupt_read_urb,
GFP_KERNEL);
if (response) {
dev_err(&port->dev, "%s - Error %d submitting control urb\n", __func__, response);
dev_err(&port->dev,
"%s - Error %d submitting control urb\n",
__func__, response);
}
}
/* initialize our wait queues */
init_waitqueue_head(&edge_port->wait_open);
init_waitqueue_head(&edge_port->wait_chase);
......@@ -872,26 +924,29 @@ static int edge_open(struct tty_struct *tty,
init_waitqueue_head(&edge_port->wait_command);
/* initialize our icount structure */
memset (&(edge_port->icount), 0x00, sizeof(edge_port->icount));
memset(&(edge_port->icount), 0x00, sizeof(edge_port->icount));
/* initialize our port settings */
edge_port->txCredits = 0; /* Can't send any data yet */
edge_port->shadowMCR = MCR_MASTER_IE; /* Must always set this bit to enable ints! */
edge_port->txCredits = 0; /* Can't send any data yet */
/* Must always set this bit to enable ints! */
edge_port->shadowMCR = MCR_MASTER_IE;
edge_port->chaseResponsePending = false;
/* send a open port command */
edge_port->openPending = true;
edge_port->open = false;
response = send_iosp_ext_cmd (edge_port, IOSP_CMD_OPEN_PORT, 0);
response = send_iosp_ext_cmd(edge_port, IOSP_CMD_OPEN_PORT, 0);
if (response < 0) {
dev_err(&port->dev, "%s - error sending open port command\n", __func__);
dev_err(&port->dev, "%s - error sending open port command\n",
__func__);
edge_port->openPending = false;
return -ENODEV;
}
/* now wait for the port to be completely opened */
wait_event_timeout(edge_port->wait_open, !edge_port->openPending, OPEN_TIMEOUT);
wait_event_timeout(edge_port->wait_open, !edge_port->openPending,
OPEN_TIMEOUT);
if (!edge_port->open) {
/* open timed out */
......@@ -905,25 +960,26 @@ static int edge_open(struct tty_struct *tty,
edge_port->txfifo.tail = 0;
edge_port->txfifo.count = 0;
edge_port->txfifo.size = edge_port->maxTxCredits;
edge_port->txfifo.fifo = kmalloc (edge_port->maxTxCredits, GFP_KERNEL);
edge_port->txfifo.fifo = kmalloc(edge_port->maxTxCredits, GFP_KERNEL);
if (!edge_port->txfifo.fifo) {
dbg("%s - no memory", __func__);
edge_close (tty, port, filp);
edge_close(tty, port, filp);
return -ENOMEM;
}
/* Allocate a URB for the write */
edge_port->write_urb = usb_alloc_urb (0, GFP_KERNEL);
edge_port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
edge_port->write_in_progress = false;
if (!edge_port->write_urb) {
dbg("%s - no memory", __func__);
edge_close (tty, port, filp);
edge_close(tty, port, filp);
return -ENOMEM;
}
dbg("%s(%d) - Initialize TX fifo to %d bytes", __func__, port->number, edge_port->maxTxCredits);
dbg("%s(%d) - Initialize TX fifo to %d bytes",
__func__, port->number, edge_port->maxTxCredits);
dbg("%s exited", __func__);
......@@ -949,27 +1005,28 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
int loop = 10;
while (1) {
// Save Last credits
/* Save Last credits */
lastCredits = edge_port->txCredits;
// Did we get our Chase response
/* Did we get our Chase response */
if (!edge_port->chaseResponsePending) {
dbg("%s - Got Chase Response", __func__);
// did we get all of our credit back?
if (edge_port->txCredits == edge_port->maxTxCredits ) {
/* did we get all of our credit back? */
if (edge_port->txCredits == edge_port->maxTxCredits) {
dbg("%s - Got all credits", __func__);
return;
}
}
// Block the thread for a while
prepare_to_wait(&edge_port->wait_chase, &wait, TASK_UNINTERRUPTIBLE);
/* Block the thread for a while */
prepare_to_wait(&edge_port->wait_chase, &wait,
TASK_UNINTERRUPTIBLE);
schedule_timeout(timeout);
finish_wait(&edge_port->wait_chase, &wait);
if (lastCredits == edge_port->txCredits) {
// No activity.. count down.
/* No activity.. count down. */
loop--;
if (loop == 0) {
edge_port->chaseResponsePending = false;
......@@ -977,8 +1034,9 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
return;
}
} else {
// Reset timeout value back to 10 seconds
dbg("%s - Last %d, Current %d", __func__, lastCredits, edge_port->txCredits);
/* Reset timeout value back to 10 seconds */
dbg("%s - Last %d, Current %d", __func__,
lastCredits, edge_port->txCredits);
loop = 10;
}
}
......@@ -995,7 +1053,7 @@ static void block_until_chase_response(struct edgeport_port *edge_port)
* 3. A timeout of 3 seconds without activity has expired
*
************************************************************************/
static void block_until_tx_empty (struct edgeport_port *edge_port)
static void block_until_tx_empty(struct edgeport_port *edge_port)
{
DEFINE_WAIT(wait);
struct TxFifo *fifo = &edge_port->txfifo;
......@@ -1004,31 +1062,32 @@ static void block_until_tx_empty (struct edgeport_port *edge_port)
int loop = 30;
while (1) {
// Save Last count
/* Save Last count */
lastCount = fifo->count;
// Is the Edgeport Buffer empty?
/* Is the Edgeport Buffer empty? */
if (lastCount == 0) {
dbg("%s - TX Buffer Empty", __func__);
return;
}
// Block the thread for a while
prepare_to_wait (&edge_port->wait_chase, &wait, TASK_UNINTERRUPTIBLE);
/* Block the thread for a while */
prepare_to_wait(&edge_port->wait_chase, &wait,
TASK_UNINTERRUPTIBLE);
schedule_timeout(timeout);
finish_wait(&edge_port->wait_chase, &wait);
dbg("%s wait", __func__);
if (lastCount == fifo->count) {
// No activity.. count down.
/* No activity.. count down. */
loop--;
if (loop == 0) {
dbg("%s - TIMEOUT", __func__);
return;
}
} else {
// Reset timeout value back to seconds
/* Reset timeout value back to seconds */
loop = 30;
}
}
......@@ -1040,20 +1099,20 @@ static void block_until_tx_empty (struct edgeport_port *edge_port)
* this function is called by the tty driver when a port is closed
*****************************************************************************/
static void edge_close(struct tty_struct *tty,
struct usb_serial_port *port, struct file * filp)
struct usb_serial_port *port, struct file *filp)
{
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
int status;
dbg("%s - port %d", __func__, port->number);
edge_serial = usb_get_serial_data(port->serial);
edge_port = usb_get_serial_port_data(port);
if ((edge_serial == NULL) || (edge_port == NULL))
if (edge_serial == NULL || edge_port == NULL)
return;
// block until tx is empty
/* block until tx is empty */
block_until_tx_empty(edge_port);
edge_port->closePending = true;
......@@ -1065,13 +1124,12 @@ static void edge_close(struct tty_struct *tty,
edge_port->chaseResponsePending = true;
dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__);
status = send_iosp_ext_cmd (edge_port, IOSP_CMD_CHASE_PORT, 0);
if (status == 0) {
// block until chase finished
status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
if (status == 0)
/* block until chase finished */
block_until_chase_response(edge_port);
} else {
else
edge_port->chaseResponsePending = false;
}
}
if ((!edge_serial->is_epic) ||
......@@ -1079,10 +1137,10 @@ static void edge_close(struct tty_struct *tty,
(edge_serial->epic_descriptor.Supports.IOSPClose))) {
/* close the port */
dbg("%s - Sending IOSP_CMD_CLOSE_PORT", __func__);
send_iosp_ext_cmd (edge_port, IOSP_CMD_CLOSE_PORT, 0);
send_iosp_ext_cmd(edge_port, IOSP_CMD_CLOSE_PORT, 0);
}
//port->close = true;
/* port->close = true; */
edge_port->closePending = false;
edge_port->open = false;
edge_port->openPending = false;
......@@ -1090,7 +1148,8 @@ static void edge_close(struct tty_struct *tty,
usb_kill_urb(edge_port->write_urb);
if (edge_port->write_urb) {
/* if this urb had a transfer buffer already (old transfer) free it */
/* if this urb had a transfer buffer already
(old transfer) free it */
kfree(edge_port->write_urb->transfer_buffer);
usb_free_urb(edge_port->write_urb);
edge_port->write_urb = NULL;
......@@ -1099,14 +1158,14 @@ static void edge_close(struct tty_struct *tty,
edge_port->txfifo.fifo = NULL;
dbg("%s exited", __func__);
}
}
/*****************************************************************************
* SerialWrite
* this function is called by the tty driver when data should be written to
* the port.
* If successful, we return the number of bytes written, otherwise we return
* a negative error number.
* this function is called by the tty driver when data should be written
* to the port.
* If successful, we return the number of bytes written, otherwise we
* return a negative error number.
*****************************************************************************/
static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
const unsigned char *data, int count)
......@@ -1124,66 +1183,76 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
if (edge_port == NULL)
return -ENODEV;
// get a pointer to the Tx fifo
/* get a pointer to the Tx fifo */
fifo = &edge_port->txfifo;
spin_lock_irqsave(&edge_port->ep_lock, flags);
// calculate number of bytes to put in fifo
copySize = min ((unsigned int)count, (edge_port->txCredits - fifo->count));
/* calculate number of bytes to put in fifo */
copySize = min((unsigned int)count,
(edge_port->txCredits - fifo->count));
dbg("%s(%d) of %d byte(s) Fifo room %d -- will copy %d bytes", __func__,
port->number, count, edge_port->txCredits - fifo->count, copySize);
dbg("%s(%d) of %d byte(s) Fifo room %d -- will copy %d bytes",
__func__, port->number, count,
edge_port->txCredits - fifo->count, copySize);
/* catch writes of 0 bytes which the tty driver likes to give us, and when txCredits is empty */
/* catch writes of 0 bytes which the tty driver likes to give us,
and when txCredits is empty */
if (copySize == 0) {
dbg("%s - copySize = Zero", __func__);
goto finish_write;
}
// queue the data
// since we can never overflow the buffer we do not have to check for full condition
// the copy is done is two parts -- first fill to the end of the buffer
// then copy the reset from the start of the buffer
/* queue the data
* since we can never overflow the buffer we do not have to check for a
* full condition
*
* the copy is done is two parts -- first fill to the end of the buffer
* then copy the reset from the start of the buffer
*/
bytesleft = fifo->size - fifo->head;
firsthalf = min (bytesleft, copySize);
dbg("%s - copy %d bytes of %d into fifo ", __func__, firsthalf, bytesleft);
firsthalf = min(bytesleft, copySize);
dbg("%s - copy %d bytes of %d into fifo ", __func__,
firsthalf, bytesleft);
/* now copy our data */
memcpy(&fifo->fifo[fifo->head], data, firsthalf);
usb_serial_debug_data(debug, &port->dev, __func__, firsthalf, &fifo->fifo[fifo->head]);
usb_serial_debug_data(debug, &port->dev, __func__,
firsthalf, &fifo->fifo[fifo->head]);
// update the index and size
/* update the index and size */
fifo->head += firsthalf;
fifo->count += firsthalf;
// wrap the index
if (fifo->head == fifo->size) {
/* wrap the index */
if (fifo->head == fifo->size)
fifo->head = 0;
}
secondhalf = copySize-firsthalf;
if (secondhalf) {
dbg("%s - copy rest of data %d", __func__, secondhalf);
memcpy(&fifo->fifo[fifo->head], &data[firsthalf], secondhalf);
usb_serial_debug_data(debug, &port->dev, __func__, secondhalf, &fifo->fifo[fifo->head]);
// update the index and size
usb_serial_debug_data(debug, &port->dev, __func__,
secondhalf, &fifo->fifo[fifo->head]);
/* update the index and size */
fifo->count += secondhalf;
fifo->head += secondhalf;
// No need to check for wrap since we can not get to end of fifo in this part
/* No need to check for wrap since we can not get to end of
* the fifo in this part
*/
}
finish_write:
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
send_more_port_data((struct edgeport_serial *)usb_get_serial_data(port->serial), edge_port);
send_more_port_data((struct edgeport_serial *)
usb_get_serial_data(port->serial), edge_port);
dbg("%s wrote %d byte(s) TxCredits %d, Fifo %d", __func__, copySize, edge_port->txCredits, fifo->count);
dbg("%s wrote %d byte(s) TxCredits %d, Fifo %d", __func__,
copySize, edge_port->txCredits, fifo->count);
return copySize;
return copySize;
}
......@@ -1200,7 +1269,8 @@ static int edge_write(struct tty_struct *tty, struct usb_serial_port *port,
* can transmit more.
*
************************************************************************/
static void send_more_port_data(struct edgeport_serial *edge_serial, struct edgeport_port *edge_port)
static void send_more_port_data(struct edgeport_serial *edge_serial,
struct edgeport_port *edge_port)
{
struct TxFifo *fifo = &edge_port->txfifo;
struct urb *urb;
......@@ -1219,67 +1289,78 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, struct edge
if (edge_port->write_in_progress ||
!edge_port->open ||
(fifo->count == 0)) {
dbg("%s(%d) EXIT - fifo %d, PendingWrite = %d", __func__, edge_port->port->number, fifo->count, edge_port->write_in_progress);
dbg("%s(%d) EXIT - fifo %d, PendingWrite = %d",
__func__, edge_port->port->number,
fifo->count, edge_port->write_in_progress);
goto exit_send;
}
// since the amount of data in the fifo will always fit into the
// edgeport buffer we do not need to check the write length
// Do we have enough credits for this port to make it worthwhile
// to bother queueing a write. If it's too small, say a few bytes,
// it's better to wait for more credits so we can do a larger
// write.
if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits,EDGE_FW_BULK_MAX_PACKET_SIZE)) {
dbg("%s(%d) Not enough credit - fifo %d TxCredit %d", __func__, edge_port->port->number, fifo->count, edge_port->txCredits );
/* since the amount of data in the fifo will always fit into the
* edgeport buffer we do not need to check the write length
*
* Do we have enough credits for this port to make it worthwhile
* to bother queueing a write. If it's too small, say a few bytes,
* it's better to wait for more credits so we can do a larger write.
*/
if (edge_port->txCredits < EDGE_FW_GET_TX_CREDITS_SEND_THRESHOLD(edge_port->maxTxCredits, EDGE_FW_BULK_MAX_PACKET_SIZE)) {
dbg("%s(%d) Not enough credit - fifo %d TxCredit %d",
__func__, edge_port->port->number, fifo->count,
edge_port->txCredits);
goto exit_send;
}
// lock this write
/* lock this write */
edge_port->write_in_progress = true;
// get a pointer to the write_urb
/* get a pointer to the write_urb */
urb = edge_port->write_urb;
/* make sure transfer buffer is freed */
kfree(urb->transfer_buffer);
urb->transfer_buffer = NULL;
/* build the data header for the buffer and port that we are about to send out */
/* build the data header for the buffer and port that we are about
to send out */
count = fifo->count;
buffer = kmalloc (count+2, GFP_ATOMIC);
buffer = kmalloc(count+2, GFP_ATOMIC);
if (buffer == NULL) {
dev_err(&edge_port->port->dev, "%s - no more kernel memory...\n", __func__);
dev_err(&edge_port->port->dev,
"%s - no more kernel memory...\n", __func__);
edge_port->write_in_progress = false;
goto exit_send;
}
buffer[0] = IOSP_BUILD_DATA_HDR1 (edge_port->port->number - edge_port->port->serial->minor, count);
buffer[1] = IOSP_BUILD_DATA_HDR2 (edge_port->port->number - edge_port->port->serial->minor, count);
buffer[0] = IOSP_BUILD_DATA_HDR1(edge_port->port->number
- edge_port->port->serial->minor, count);
buffer[1] = IOSP_BUILD_DATA_HDR2(edge_port->port->number
- edge_port->port->serial->minor, count);
/* now copy our data */
bytesleft = fifo->size - fifo->tail;
firsthalf = min (bytesleft, count);
firsthalf = min(bytesleft, count);
memcpy(&buffer[2], &fifo->fifo[fifo->tail], firsthalf);
fifo->tail += firsthalf;
fifo->count -= firsthalf;
if (fifo->tail == fifo->size) {
if (fifo->tail == fifo->size)
fifo->tail = 0;
}
secondhalf = count-firsthalf;
if (secondhalf) {
memcpy(&buffer[2+firsthalf], &fifo->fifo[fifo->tail], secondhalf);
memcpy(&buffer[2+firsthalf], &fifo->fifo[fifo->tail],
secondhalf);
fifo->tail += secondhalf;
fifo->count -= secondhalf;
}
if (count)
usb_serial_debug_data(debug, &edge_port->port->dev, __func__, count, &buffer[2]);
usb_serial_debug_data(debug, &edge_port->port->dev,
__func__, count, &buffer[2]);
/* fill up the urb with all of our data and submit it */
usb_fill_bulk_urb (urb, edge_serial->serial->dev,
usb_sndbulkpipe(edge_serial->serial->dev, edge_serial->bulk_out_endpoint),
buffer, count+2, edge_bulk_out_data_callback, edge_port);
usb_fill_bulk_urb(urb, edge_serial->serial->dev,
usb_sndbulkpipe(edge_serial->serial->dev,
edge_serial->bulk_out_endpoint),
buffer, count+2,
edge_bulk_out_data_callback, edge_port);
/* decrement the number of credits we have by the number we just sent */
edge_port->txCredits -= count;
......@@ -1289,14 +1370,17 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, struct edge
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
/* something went wrong */
dev_err(&edge_port->port->dev, "%s - usb_submit_urb(write bulk) failed, status = %d, data lost\n", __func__, status);
dev_err(&edge_port->port->dev,
"%s - usb_submit_urb(write bulk) failed, status = %d, data lost\n",
__func__, status);
edge_port->write_in_progress = false;
/* revert the credits as something bad happened. */
edge_port->txCredits += count;
edge_port->icount.tx -= count;
}
dbg("%s wrote %d byte(s) TxCredit %d, Fifo %d", __func__, count, edge_port->txCredits, fifo->count);
dbg("%s wrote %d byte(s) TxCredit %d, Fifo %d",
__func__, count, edge_port->txCredits, fifo->count);
exit_send:
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
......@@ -1305,11 +1389,10 @@ static void send_more_port_data(struct edgeport_serial *edge_serial, struct edge
/*****************************************************************************
* edge_write_room
* this function is called by the tty driver when it wants to know how many
* bytes of data we can accept for a specific port.
* If successful, we return the amount of room that we have for this port
* (the txCredits),
* Otherwise we return a negative error number.
* this function is called by the tty driver when it wants to know how
* many bytes of data we can accept for a specific port. If successful,
* we return the amount of room that we have for this port (the txCredits)
* otherwise we return a negative error number.
*****************************************************************************/
static int edge_write_room(struct tty_struct *tty)
{
......@@ -1332,7 +1415,7 @@ static int edge_write_room(struct tty_struct *tty)
return -EINVAL;
}
// total of both buffers is still txCredit
/* total of both buffers is still txCredit */
spin_lock_irqsave(&edge_port->ep_lock, flags);
room = edge_port->txCredits - edge_port->txfifo.count;
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
......@@ -1344,11 +1427,11 @@ static int edge_write_room(struct tty_struct *tty)
/*****************************************************************************
* edge_chars_in_buffer
* this function is called by the tty driver when it wants to know how many
* bytes of data we currently have outstanding in the port (data that has
* been written, but hasn't made it out the port yet)
* If successful, we return the number of bytes left to be written in the
* system,
* this function is called by the tty driver when it wants to know how
* many bytes of data we currently have outstanding in the port (data that
* has been written, but hasn't made it out the port yet)
* If successful, we return the number of bytes left to be written in the
* system,
* Otherwise we return a negative error number.
*****************************************************************************/
static int edge_chars_in_buffer(struct tty_struct *tty)
......@@ -1371,10 +1454,12 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
}
spin_lock_irqsave(&edge_port->ep_lock, flags);
num_chars = edge_port->maxTxCredits - edge_port->txCredits + edge_port->txfifo.count;
num_chars = edge_port->maxTxCredits - edge_port->txCredits +
edge_port->txfifo.count;
spin_unlock_irqrestore(&edge_port->ep_lock, flags);
if (num_chars) {
dbg("%s(port %d) - returns %d", __func__, port->number, num_chars);
dbg("%s(port %d) - returns %d", __func__,
port->number, num_chars);
}
return num_chars;
......@@ -1405,19 +1490,18 @@ static void edge_throttle(struct tty_struct *tty)
/* if we are implementing XON/XOFF, send the stop character */
if (I_IXOFF(tty)) {
unsigned char stop_char = STOP_CHAR(tty);
status = edge_write (tty, port, &stop_char, 1);
if (status <= 0) {
status = edge_write(tty, port, &stop_char, 1);
if (status <= 0)
return;
}
}
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios->c_cflag & CRTSCTS) {
edge_port->shadowMCR &= ~MCR_RTS;
status = send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR);
if (status != 0) {
status = send_cmd_write_uart_register(edge_port, MCR,
edge_port->shadowMCR);
if (status != 0)
return;
}
}
return;
......@@ -1426,8 +1510,8 @@ static void edge_throttle(struct tty_struct *tty)
/*****************************************************************************
* edge_unthrottle
* this function is called by the tty driver when it wants to resume the data
* being read from the port (called after SerialThrottle is called)
* this function is called by the tty driver when it wants to resume the
* data being read from the port (called after SerialThrottle is called)
*****************************************************************************/
static void edge_unthrottle(struct tty_struct *tty)
{
......@@ -1455,14 +1539,16 @@ static void edge_unthrottle(struct tty_struct *tty)
/* if we are implementing RTS/CTS, toggle that line */
if (tty->termios->c_cflag & CRTSCTS) {
edge_port->shadowMCR |= MCR_RTS;
send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR);
send_cmd_write_uart_register(edge_port, MCR,
edge_port->shadowMCR);
}
}
/*****************************************************************************
* SerialSetTermios
* this function is called by the tty driver when it wants to change the termios structure
* this function is called by the tty driver when it wants to change
* the termios structure
*****************************************************************************/
static void edge_set_termios(struct tty_struct *tty,
struct usb_serial_port *port, struct ktermios *old_termios)
......@@ -1499,9 +1585,10 @@ static void edge_set_termios(struct tty_struct *tty,
* release the bus after transmitting. This must be done when
* the transmit shift register is empty, not be done when the
* transmit holding register is empty. This functionality
* allows an RS485 driver to be written in user space.
* allows an RS485 driver to be written in user space.
*****************************************************************************/
static int get_lsr_info(struct edgeport_port *edge_port, unsigned int __user *value)
static int get_lsr_info(struct edgeport_port *edge_port,
unsigned int __user *value)
{
unsigned int result = 0;
unsigned long flags;
......@@ -1519,7 +1606,8 @@ static int get_lsr_info(struct edgeport_port *edge_port, unsigned int __user *va
return 0;
}
static int edge_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear)
static int edge_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
......@@ -1574,7 +1662,8 @@ static int edge_tiocmget(struct tty_struct *tty, struct file *file)
return result;
}
static int get_serial_info(struct edgeport_port *edge_port, struct serial_struct __user *retinfo)
static int get_serial_info(struct edgeport_port *edge_port,
struct serial_struct __user *retinfo)
{
struct serial_struct tmp;
......@@ -1617,60 +1706,61 @@ static int edge_ioctl(struct tty_struct *tty, struct file *file,
dbg("%s - port %d, cmd = 0x%x", __func__, port->number, cmd);
switch (cmd) {
case TIOCSERGETLSR:
dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
return get_lsr_info(edge_port, (unsigned int __user *) arg);
case TIOCGSERIAL:
dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
return get_serial_info(edge_port, (struct serial_struct __user *) arg);
case TIOCMIWAIT:
dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
cprev = edge_port->icount;
while (1) {
prepare_to_wait(&edge_port->delta_msr_wait, &wait, TASK_INTERRUPTIBLE);
schedule();
finish_wait(&edge_port->delta_msr_wait, &wait);
/* see if a signal did it */
if (signal_pending(current))
return -ERESTARTSYS;
cnow = edge_port->icount;
if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
return -EIO; /* no change => error */
if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
return 0;
}
cprev = cnow;
case TIOCSERGETLSR:
dbg("%s (%d) TIOCSERGETLSR", __func__, port->number);
return get_lsr_info(edge_port, (unsigned int __user *) arg);
case TIOCGSERIAL:
dbg("%s (%d) TIOCGSERIAL", __func__, port->number);
return get_serial_info(edge_port, (struct serial_struct __user *) arg);
case TIOCMIWAIT:
dbg("%s (%d) TIOCMIWAIT", __func__, port->number);
cprev = edge_port->icount;
while (1) {
prepare_to_wait(&edge_port->delta_msr_wait,
&wait, TASK_INTERRUPTIBLE);
schedule();
finish_wait(&edge_port->delta_msr_wait, &wait);
/* see if a signal did it */
if (signal_pending(current))
return -ERESTARTSYS;
cnow = edge_port->icount;
if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
return -EIO; /* no change => error */
if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
return 0;
}
/* NOTREACHED */
break;
cprev = cnow;
}
/* NOTREACHED */
break;
case TIOCGICOUNT:
cnow = edge_port->icount;
memset(&icount, 0, sizeof(icount));
icount.cts = cnow.cts;
icount.dsr = cnow.dsr;
icount.rng = cnow.rng;
icount.dcd = cnow.dcd;
icount.rx = cnow.rx;
icount.tx = cnow.tx;
icount.frame = cnow.frame;
icount.overrun = cnow.overrun;
icount.parity = cnow.parity;
icount.brk = cnow.brk;
icount.buf_overrun = cnow.buf_overrun;
dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __func__, port->number, icount.rx, icount.tx );
if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
return -EFAULT;
return 0;
case TIOCGICOUNT:
cnow = edge_port->icount;
memset(&icount, 0, sizeof(icount));
icount.cts = cnow.cts;
icount.dsr = cnow.dsr;
icount.rng = cnow.rng;
icount.dcd = cnow.dcd;
icount.rx = cnow.rx;
icount.tx = cnow.tx;
icount.frame = cnow.frame;
icount.overrun = cnow.overrun;
icount.parity = cnow.parity;
icount.brk = cnow.brk;
icount.buf_overrun = cnow.buf_overrun;
dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d",
__func__, port->number, icount.rx, icount.tx);
if (copy_to_user((void __user *)arg, &icount, sizeof(icount)))
return -EFAULT;
return 0;
}
return -ENOIOCTLCMD;
}
......@@ -1679,7 +1769,7 @@ static int edge_ioctl(struct tty_struct *tty, struct file *file,
* SerialBreak
* this function sends a break to the port
*****************************************************************************/
static void edge_break (struct tty_struct *tty, int break_state)
static void edge_break(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
struct edgeport_port *edge_port = usb_get_serial_port_data(port);
......@@ -1693,9 +1783,9 @@ static void edge_break (struct tty_struct *tty, int break_state)
edge_port->chaseResponsePending = true;
dbg("%s - Sending IOSP_CMD_CHASE_PORT", __func__);
status = send_iosp_ext_cmd (edge_port, IOSP_CMD_CHASE_PORT, 0);
status = send_iosp_ext_cmd(edge_port, IOSP_CMD_CHASE_PORT, 0);
if (status == 0) {
// block until chase finished
/* block until chase finished */
block_until_chase_response(edge_port);
} else {
edge_port->chaseResponsePending = false;
......@@ -1707,14 +1797,16 @@ static void edge_break (struct tty_struct *tty, int break_state)
(edge_serial->epic_descriptor.Supports.IOSPSetClrBreak))) {
if (break_state == -1) {
dbg("%s - Sending IOSP_CMD_SET_BREAK", __func__);
status = send_iosp_ext_cmd (edge_port, IOSP_CMD_SET_BREAK, 0);
status = send_iosp_ext_cmd(edge_port,
IOSP_CMD_SET_BREAK, 0);
} else {
dbg("%s - Sending IOSP_CMD_CLEAR_BREAK", __func__);
status = send_iosp_ext_cmd (edge_port, IOSP_CMD_CLEAR_BREAK, 0);
}
if (status) {
dbg("%s - error sending break set/clear command.", __func__);
status = send_iosp_ext_cmd(edge_port,
IOSP_CMD_CLEAR_BREAK, 0);
}
if (status)
dbg("%s - error sending break set/clear command.",
__func__);
}
return;
......@@ -1725,7 +1817,8 @@ static void edge_break (struct tty_struct *tty, int break_state)
* process_rcvd_data
* this function handles the data received on the bulk in pipe.
*****************************************************************************/
static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned char * buffer, __u16 bufferLength)
static void process_rcvd_data(struct edgeport_serial *edge_serial,
unsigned char *buffer, __u16 bufferLength)
{
struct usb_serial_port *port;
struct edgeport_port *edge_port;
......@@ -1746,105 +1839,123 @@ static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned cha
lastBufferLength = bufferLength;
switch (edge_serial->rxState) {
case EXPECT_HDR1:
edge_serial->rxHeader1 = *buffer;
++buffer;
--bufferLength;
case EXPECT_HDR1:
edge_serial->rxHeader1 = *buffer;
++buffer;
--bufferLength;
if (bufferLength == 0) {
edge_serial->rxState = EXPECT_HDR2;
if (bufferLength == 0) {
edge_serial->rxState = EXPECT_HDR2;
break;
}
/* otherwise, drop on through */
case EXPECT_HDR2:
edge_serial->rxHeader2 = *buffer;
++buffer;
--bufferLength;
dbg("%s - Hdr1=%02X Hdr2=%02X", __func__,
edge_serial->rxHeader1, edge_serial->rxHeader2);
/* Process depending on whether this header is
* data or status */
if (IS_CMD_STAT_HDR(edge_serial->rxHeader1)) {
/* Decode this status header and go to
* EXPECT_HDR1 (if we can process the status
* with only 2 bytes), or go to EXPECT_HDR3 to
* get the third byte. */
edge_serial->rxPort =
IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
edge_serial->rxStatusCode =
IOSP_GET_STATUS_CODE(
edge_serial->rxHeader1);
if (!IOSP_STATUS_IS_2BYTE(
edge_serial->rxStatusCode)) {
/* This status needs additional bytes.
* Save what we have and then wait for
* more data.
*/
edge_serial->rxStatusParam
= edge_serial->rxHeader2;
edge_serial->rxState = EXPECT_HDR3;
break;
}
/* otherwise, drop on through */
case EXPECT_HDR2:
edge_serial->rxHeader2 = *buffer;
++buffer;
--bufferLength;
dbg("%s - Hdr1=%02X Hdr2=%02X", __func__, edge_serial->rxHeader1, edge_serial->rxHeader2);
// Process depending on whether this header is
// data or status
if (IS_CMD_STAT_HDR(edge_serial->rxHeader1)) {
// Decode this status header and goto EXPECT_HDR1 (if we
// can process the status with only 2 bytes), or goto
// EXPECT_HDR3 to get the third byte.
edge_serial->rxPort = IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
edge_serial->rxStatusCode = IOSP_GET_STATUS_CODE(edge_serial->rxHeader1);
if (!IOSP_STATUS_IS_2BYTE(edge_serial->rxStatusCode)) {
// This status needs additional bytes. Save what we have
// and then wait for more data.
edge_serial->rxStatusParam = edge_serial->rxHeader2;
edge_serial->rxState = EXPECT_HDR3;
break;
}
/* We have all the header bytes, process the
status now */
process_rcvd_status(edge_serial,
edge_serial->rxHeader2, 0);
edge_serial->rxState = EXPECT_HDR1;
break;
} else {
edge_serial->rxPort =
IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
edge_serial->rxBytesRemaining =
IOSP_GET_HDR_DATA_LEN(
edge_serial->rxHeader1,
edge_serial->rxHeader2);
dbg("%s - Data for Port %u Len %u",
__func__,
edge_serial->rxPort,
edge_serial->rxBytesRemaining);
/* ASSERT(DevExt->RxPort < DevExt->NumPorts);
* ASSERT(DevExt->RxBytesRemaining <
* IOSP_MAX_DATA_LENGTH);
*/
// We have all the header bytes, process the status now
process_rcvd_status (edge_serial, edge_serial->rxHeader2, 0);
edge_serial->rxState = EXPECT_HDR1;
if (bufferLength == 0) {
edge_serial->rxState = EXPECT_DATA;
break;
} else {
edge_serial->rxPort = IOSP_GET_HDR_PORT(edge_serial->rxHeader1);
edge_serial->rxBytesRemaining = IOSP_GET_HDR_DATA_LEN(edge_serial->rxHeader1, edge_serial->rxHeader2);
dbg("%s - Data for Port %u Len %u", __func__, edge_serial->rxPort, edge_serial->rxBytesRemaining);
//ASSERT( DevExt->RxPort < DevExt->NumPorts );
//ASSERT( DevExt->RxBytesRemaining < IOSP_MAX_DATA_LENGTH );
if (bufferLength == 0 ) {
edge_serial->rxState = EXPECT_DATA;
break;
}
// Else, drop through
}
/* Else, drop through */
}
case EXPECT_DATA: /* Expect data */
if (bufferLength < edge_serial->rxBytesRemaining) {
rxLen = bufferLength;
/* Expect data to start next buffer */
edge_serial->rxState = EXPECT_DATA;
} else {
/* BufLen >= RxBytesRemaining */
rxLen = edge_serial->rxBytesRemaining;
/* Start another header next time */
edge_serial->rxState = EXPECT_HDR1;
}
case EXPECT_DATA: // Expect data
if (bufferLength < edge_serial->rxBytesRemaining) {
rxLen = bufferLength;
edge_serial->rxState = EXPECT_DATA; // Expect data to start next buffer
} else {
// BufLen >= RxBytesRemaining
rxLen = edge_serial->rxBytesRemaining;
edge_serial->rxState = EXPECT_HDR1; // Start another header next time
}
bufferLength -= rxLen;
edge_serial->rxBytesRemaining -= rxLen;
bufferLength -= rxLen;
edge_serial->rxBytesRemaining -= rxLen;
/* spit this data back into the tty driver if this port is open */
if (rxLen) {
port = edge_serial->serial->port[edge_serial->rxPort];
edge_port = usb_get_serial_port_data(port);
if (edge_port->open) {
tty = edge_port->port->port.tty;
if (tty) {
dbg("%s - Sending %d bytes to TTY for port %d", __func__, rxLen, edge_serial->rxPort);
edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen);
}
edge_port->icount.rx += rxLen;
/* spit this data back into the tty driver if this
port is open */
if (rxLen) {
port = edge_serial->serial->port[
edge_serial->rxPort];
edge_port = usb_get_serial_port_data(port);
if (edge_port->open) {
tty = edge_port->port->port.tty;
if (tty) {
dbg("%s - Sending %d bytes to TTY for port %d",
__func__, rxLen, edge_serial->rxPort);
edge_tty_recv(&edge_serial->serial->dev->dev, tty, buffer, rxLen);
}
buffer += rxLen;
edge_port->icount.rx += rxLen;
}
buffer += rxLen;
}
break;
break;
case EXPECT_HDR3: // Expect 3rd byte of status header
edge_serial->rxHeader3 = *buffer;
++buffer;
--bufferLength;
// We have all the header bytes, process the status now
process_rcvd_status (edge_serial, edge_serial->rxStatusParam, edge_serial->rxHeader3);
edge_serial->rxState = EXPECT_HDR1;
break;
case EXPECT_HDR3: /* Expect 3rd byte of status header */
edge_serial->rxHeader3 = *buffer;
++buffer;
--bufferLength;
/* We have all the header bytes, process the
status now */
process_rcvd_status(edge_serial,
edge_serial->rxStatusParam,
edge_serial->rxHeader3);
edge_serial->rxState = EXPECT_HDR1;
break;
}
}
}
......@@ -1852,9 +1963,11 @@ static void process_rcvd_data (struct edgeport_serial *edge_serial, unsigned cha
/*****************************************************************************
* process_rcvd_status
* this function handles the any status messages received on the bulk in pipe.
* this function handles the any status messages received on the
* bulk in pipe.
*****************************************************************************/
static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2, __u8 byte3)
static void process_rcvd_status(struct edgeport_serial *edge_serial,
__u8 byte2, __u8 byte3)
{
struct usb_serial_port *port;
struct edgeport_port *edge_port;
......@@ -1864,7 +1977,9 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
port = edge_serial->serial->port[edge_serial->rxPort];
edge_port = usb_get_serial_port_data(port);
if (edge_port == NULL) {
dev_err(&edge_serial->serial->dev->dev, "%s - edge_port == NULL for port %d\n", __func__, edge_serial->rxPort);
dev_err(&edge_serial->serial->dev->dev,
"%s - edge_port == NULL for port %d\n",
__func__, edge_serial->rxPort);
return;
}
......@@ -1872,22 +1987,28 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
if (code == IOSP_EXT_STATUS) {
switch (byte2) {
case IOSP_EXT_STATUS_CHASE_RSP:
// we want to do EXT status regardless of port open/closed
dbg("%s - Port %u EXT CHASE_RSP Data = %02x", __func__, edge_serial->rxPort, byte3 );
// Currently, the only EXT_STATUS is Chase, so process here instead of one more call
// to one more subroutine. If/when more EXT_STATUS, there'll be more work to do.
// Also, we currently clear flag and close the port regardless of content of above's Byte3.
// We could choose to do something else when Byte3 says Timeout on Chase from Edgeport,
// like wait longer in block_until_chase_response, but for now we don't.
edge_port->chaseResponsePending = false;
wake_up (&edge_port->wait_chase);
return;
case IOSP_EXT_STATUS_CHASE_RSP:
/* we want to do EXT status regardless of port
* open/closed */
dbg("%s - Port %u EXT CHASE_RSP Data = %02x",
__func__, edge_serial->rxPort, byte3);
/* Currently, the only EXT_STATUS is Chase, so process
* here instead of one more call to one more subroutine
* If/when more EXT_STATUS, there'll be more work to do
* Also, we currently clear flag and close the port
* regardless of content of above's Byte3.
* We could choose to do something else when Byte3 says
* Timeout on Chase from Edgeport, like wait longer in
* block_until_chase_response, but for now we don't.
*/
edge_port->chaseResponsePending = false;
wake_up(&edge_port->wait_chase);
return;
case IOSP_EXT_STATUS_RX_CHECK_RSP:
dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============\n", __func__, edge_serial->rxPort, byte3 );
//Port->RxCheckRsp = true;
return;
case IOSP_EXT_STATUS_RX_CHECK_RSP:
dbg("%s ========== Port %u CHECK_RSP Sequence = %02x =============\n", __func__, edge_serial->rxPort, byte3);
/* Port->RxCheckRsp = true; */
return;
}
}
......@@ -1895,12 +2016,14 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
edge_port->txCredits = GET_TX_BUFFER_SIZE(byte3);
edge_port->maxTxCredits = edge_port->txCredits;
dbg("%s - Port %u Open Response Inital MSR = %02x TxBufferSize = %d", __func__, edge_serial->rxPort, byte2, edge_port->txCredits);
handle_new_msr (edge_port, byte2);
handle_new_msr(edge_port, byte2);
/* send the current line settings to the port so we are in sync with any further termios calls */
/* send the current line settings to the port so we are
in sync with any further termios calls */
/* FIXME: locking on tty */
if (edge_port->port->port.tty)
change_port_settings(edge_port->port->port.tty, edge_port, edge_port->port->port.tty->termios);
change_port_settings(edge_port->port->port.tty,
edge_port, edge_port->port->port.tty->termios);
/* we have completed the open */
edge_port->openPending = false;
......@@ -1909,45 +2032,49 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
return;
}
// If port is closed, silently discard all rcvd status. We can
// have cases where buffered status is received AFTER the close
// port command is sent to the Edgeport.
if (!edge_port->open || edge_port->closePending) {
/* If port is closed, silently discard all rcvd status. We can
* have cases where buffered status is received AFTER the close
* port command is sent to the Edgeport.
*/
if (!edge_port->open || edge_port->closePending)
return;
}
switch (code) {
// Not currently sent by Edgeport
case IOSP_STATUS_LSR:
dbg("%s - Port %u LSR Status = %02x", __func__, edge_serial->rxPort, byte2);
handle_new_lsr(edge_port, false, byte2, 0);
break;
/* Not currently sent by Edgeport */
case IOSP_STATUS_LSR:
dbg("%s - Port %u LSR Status = %02x",
__func__, edge_serial->rxPort, byte2);
handle_new_lsr(edge_port, false, byte2, 0);
break;
case IOSP_STATUS_LSR_DATA:
dbg("%s - Port %u LSR Status = %02x, Data = %02x", __func__, edge_serial->rxPort, byte2, byte3);
// byte2 is LSR Register
// byte3 is broken data byte
handle_new_lsr(edge_port, true, byte2, byte3);
break;
//
// case IOSP_EXT_4_STATUS:
// dbg("%s - Port %u LSR Status = %02x Data = %02x", __func__, edge_serial->rxPort, byte2, byte3);
// break;
//
case IOSP_STATUS_MSR:
dbg("%s - Port %u MSR Status = %02x", __func__, edge_serial->rxPort, byte2);
// Process this new modem status and generate appropriate
// events, etc, based on the new status. This routine
// also saves the MSR in Port->ShadowMsr.
handle_new_msr(edge_port, byte2);
break;
case IOSP_STATUS_LSR_DATA:
dbg("%s - Port %u LSR Status = %02x, Data = %02x",
__func__, edge_serial->rxPort, byte2, byte3);
/* byte2 is LSR Register */
/* byte3 is broken data byte */
handle_new_lsr(edge_port, true, byte2, byte3);
break;
/*
* case IOSP_EXT_4_STATUS:
* dbg("%s - Port %u LSR Status = %02x Data = %02x",
* __func__, edge_serial->rxPort, byte2, byte3);
* break;
*/
case IOSP_STATUS_MSR:
dbg("%s - Port %u MSR Status = %02x",
__func__, edge_serial->rxPort, byte2);
/*
* Process this new modem status and generate appropriate
* events, etc, based on the new status. This routine
* also saves the MSR in Port->ShadowMsr.
*/
handle_new_msr(edge_port, byte2);
break;
default:
dbg("%s - Unrecognized IOSP status code %u\n", __func__, code);
break;
default:
dbg("%s - Unrecognized IOSP status code %u\n", __func__, code);
break;
}
return;
}
......@@ -1956,7 +2083,8 @@ static void process_rcvd_status (struct edgeport_serial *edge_serial, __u8 byte2
* edge_tty_recv
* this function passes data on to the tty flip buffer
*****************************************************************************/
static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned char *data, int length)
static void edge_tty_recv(struct device *dev, struct tty_struct *tty,
unsigned char *data, int length)
{
int cnt;
......@@ -1965,7 +2093,7 @@ static void edge_tty_recv(struct device *dev, struct tty_struct *tty, unsigned c
if (cnt < length) {
dev_err(dev, "%s - dropping data, %d bytes lost\n",
__func__, length - cnt);
if(cnt == 0)
if (cnt == 0)
break;
}
tty_insert_flip_string(tty, data, cnt);
......@@ -1987,22 +2115,19 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr)
dbg("%s %02x", __func__, newMsr);
if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR | EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
if (newMsr & (EDGEPORT_MSR_DELTA_CTS | EDGEPORT_MSR_DELTA_DSR |
EDGEPORT_MSR_DELTA_RI | EDGEPORT_MSR_DELTA_CD)) {
icount = &edge_port->icount;
/* update input line counters */
if (newMsr & EDGEPORT_MSR_DELTA_CTS) {
if (newMsr & EDGEPORT_MSR_DELTA_CTS)
icount->cts++;
}
if (newMsr & EDGEPORT_MSR_DELTA_DSR) {
if (newMsr & EDGEPORT_MSR_DELTA_DSR)
icount->dsr++;
}
if (newMsr & EDGEPORT_MSR_DELTA_CD) {
if (newMsr & EDGEPORT_MSR_DELTA_CD)
icount->dcd++;
}
if (newMsr & EDGEPORT_MSR_DELTA_RI) {
if (newMsr & EDGEPORT_MSR_DELTA_RI)
icount->rng++;
}
wake_up_interruptible(&edge_port->delta_msr_wait);
}
......@@ -2017,42 +2142,41 @@ static void handle_new_msr(struct edgeport_port *edge_port, __u8 newMsr)
* handle_new_lsr
* this function handles any change to the lsr register for a port.
*****************************************************************************/
static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, __u8 lsr, __u8 data)
static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData,
__u8 lsr, __u8 data)
{
__u8 newLsr = (__u8)(lsr & (__u8)(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK));
struct async_icount *icount;
__u8 newLsr = (__u8) (lsr & (__u8)
(LSR_OVER_ERR | LSR_PAR_ERR | LSR_FRM_ERR | LSR_BREAK));
struct async_icount *icount;
dbg("%s - %02x", __func__, newLsr);
edge_port->shadowLSR = lsr;
if (newLsr & LSR_BREAK) {
//
// Parity and Framing errors only count if they
// occur exclusive of a break being
// received.
//
/*
* Parity and Framing errors only count if they
* occur exclusive of a break being
* received.
*/
newLsr &= (__u8)(LSR_OVER_ERR | LSR_BREAK);
}
/* Place LSR data byte into Rx buffer */
if (lsrData && edge_port->port->port.tty)
edge_tty_recv(&edge_port->port->dev, edge_port->port->port.tty, &data, 1);
edge_tty_recv(&edge_port->port->dev,
edge_port->port->port.tty, &data, 1);
/* update input line counters */
icount = &edge_port->icount;
if (newLsr & LSR_BREAK) {
if (newLsr & LSR_BREAK)
icount->brk++;
}
if (newLsr & LSR_OVER_ERR) {
if (newLsr & LSR_OVER_ERR)
icount->overrun++;
}
if (newLsr & LSR_PAR_ERR) {
if (newLsr & LSR_PAR_ERR)
icount->parity++;
}
if (newLsr & LSR_FRM_ERR) {
if (newLsr & LSR_FRM_ERR)
icount->frame++;
}
return;
}
......@@ -2060,12 +2184,13 @@ static void handle_new_lsr(struct edgeport_port *edge_port, __u8 lsrData, __u8 l
/****************************************************************************
* sram_write
* writes a number of bytes to the Edgeport device's sram starting at the
* writes a number of bytes to the Edgeport device's sram starting at the
* given address.
* If successful returns the number of bytes written, otherwise it returns
* a negative error number of the problem.
****************************************************************************/
static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data)
static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
__u16 length, const __u8 *data)
{
int result;
__u16 current_length;
......@@ -2073,32 +2198,37 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u1
dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
transfer_buffer = kmalloc (64, GFP_KERNEL);
transfer_buffer = kmalloc(64, GFP_KERNEL);
if (!transfer_buffer) {
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, 64);
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
__func__, 64);
return -ENOMEM;
}
/* need to split these writes up into 64 byte chunks */
result = 0;
while (length > 0) {
if (length > 64) {
if (length > 64)
current_length = 64;
} else {
else
current_length = length;
}
// dbg("%s - writing %x, %x, %d", __func__, extAddr, addr, current_length);
memcpy (transfer_buffer, data, current_length);
result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), USB_REQUEST_ION_WRITE_RAM,
0x40, addr, extAddr, transfer_buffer, current_length, 300);
/* dbg("%s - writing %x, %x, %d", __func__,
extAddr, addr, current_length); */
memcpy(transfer_buffer, data, current_length);
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
USB_REQUEST_ION_WRITE_RAM,
0x40, addr, extAddr, transfer_buffer,
current_length, 300);
if (result < 0)
break;
length -= current_length;
addr += current_length;
data += current_length;
}
}
kfree (transfer_buffer);
kfree(transfer_buffer);
return result;
}
......@@ -2110,40 +2240,45 @@ static int sram_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u1
* If successful returns the number of bytes written, otherwise it returns
* a negative error number of the problem.
****************************************************************************/
static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, const __u8 *data)
static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr,
__u16 length, const __u8 *data)
{
int result;
__u16 current_length;
unsigned char *transfer_buffer;
// dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
/* dbg("%s - %x, %x, %d", __func__, extAddr, addr, length); */
transfer_buffer = kmalloc (64, GFP_KERNEL);
transfer_buffer = kmalloc(64, GFP_KERNEL);
if (!transfer_buffer) {
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, 64);
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n",
__func__, 64);
return -ENOMEM;
}
/* need to split these writes up into 64 byte chunks */
result = 0;
while (length > 0) {
if (length > 64) {
if (length > 64)
current_length = 64;
} else {
else
current_length = length;
}
// dbg("%s - writing %x, %x, %d", __func__, extAddr, addr, current_length);
memcpy (transfer_buffer, data, current_length);
result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), USB_REQUEST_ION_WRITE_ROM,
0x40, addr, extAddr, transfer_buffer, current_length, 300);
/* dbg("%s - writing %x, %x, %d", __func__,
extAddr, addr, current_length); */
memcpy(transfer_buffer, data, current_length);
result = usb_control_msg(serial->dev,
usb_sndctrlpipe(serial->dev, 0),
USB_REQUEST_ION_WRITE_ROM, 0x40,
addr, extAddr,
transfer_buffer, current_length, 300);
if (result < 0)
break;
length -= current_length;
addr += current_length;
data += current_length;
}
}
kfree (transfer_buffer);
kfree(transfer_buffer);
return result;
}
......@@ -2155,7 +2290,8 @@ static int rom_write(struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16
* If successful returns the number of bytes read, otherwise it returns
* a negative error number of the problem.
****************************************************************************/
static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16 length, __u8 *data)
static int rom_read(struct usb_serial *serial, __u16 extAddr,
__u16 addr, __u16 length, __u8 *data)
{
int result;
__u16 current_length;
......@@ -2163,32 +2299,36 @@ static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16
dbg("%s - %x, %x, %d", __func__, extAddr, addr, length);
transfer_buffer = kmalloc (64, GFP_KERNEL);
transfer_buffer = kmalloc(64, GFP_KERNEL);
if (!transfer_buffer) {
dev_err(&serial->dev->dev, "%s - kmalloc(%d) failed.\n", __func__, 64);
dev_err(&serial->dev->dev,
"%s - kmalloc(%d) failed.\n", __func__, 64);
return -ENOMEM;
}
/* need to split these reads up into 64 byte chunks */
result = 0;
while (length > 0) {
if (length > 64) {
if (length > 64)
current_length = 64;
} else {
else
current_length = length;
}
// dbg("%s - %x, %x, %d", __func__, extAddr, addr, current_length);
result = usb_control_msg (serial->dev, usb_rcvctrlpipe(serial->dev, 0), USB_REQUEST_ION_READ_ROM,
0xC0, addr, extAddr, transfer_buffer, current_length, 300);
/* dbg("%s - %x, %x, %d", __func__,
extAddr, addr, current_length); */
result = usb_control_msg(serial->dev,
usb_rcvctrlpipe(serial->dev, 0),
USB_REQUEST_ION_READ_ROM,
0xC0, addr, extAddr, transfer_buffer,
current_length, 300);
if (result < 0)
break;
memcpy (data, transfer_buffer, current_length);
memcpy(data, transfer_buffer, current_length);
length -= current_length;
addr += current_length;
data += current_length;
}
}
kfree (transfer_buffer);
kfree(transfer_buffer);
return result;
}
......@@ -2197,7 +2337,8 @@ static int rom_read (struct usb_serial *serial, __u16 extAddr, __u16 addr, __u16
* send_iosp_ext_cmd
* Is used to send a IOSP message to the Edgeport device
****************************************************************************/
static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u8 param)
static int send_iosp_ext_cmd(struct edgeport_port *edge_port,
__u8 command, __u8 param)
{
unsigned char *buffer;
unsigned char *currentCommand;
......@@ -2206,19 +2347,20 @@ static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u
dbg("%s - %d, %d", __func__, command, param);
buffer = kmalloc (10, GFP_ATOMIC);
buffer = kmalloc(10, GFP_ATOMIC);
if (!buffer) {
dev_err(&edge_port->port->dev, "%s - kmalloc(%d) failed.\n", __func__, 10);
dev_err(&edge_port->port->dev,
"%s - kmalloc(%d) failed.\n", __func__, 10);
return -ENOMEM;
}
currentCommand = buffer;
MAKE_CMD_EXT_CMD (&currentCommand, &length,
edge_port->port->number - edge_port->port->serial->minor,
command, param);
MAKE_CMD_EXT_CMD(&currentCommand, &length,
edge_port->port->number - edge_port->port->serial->minor,
command, param);
status = write_cmd_usb (edge_port, buffer, length);
status = write_cmd_usb(edge_port, buffer, length);
if (status) {
/* something bad happened, let's free up the memory */
kfree(buffer);
......@@ -2232,43 +2374,50 @@ static int send_iosp_ext_cmd (struct edgeport_port *edge_port, __u8 command, __u
* write_cmd_usb
* this function writes the given buffer out to the bulk write endpoint.
*****************************************************************************/
static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer, int length)
static int write_cmd_usb(struct edgeport_port *edge_port,
unsigned char *buffer, int length)
{
struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial);
struct edgeport_serial *edge_serial =
usb_get_serial_data(edge_port->port->serial);
int status = 0;
struct urb *urb;
int timeout;
usb_serial_debug_data(debug, &edge_port->port->dev, __func__, length, buffer);
usb_serial_debug_data(debug, &edge_port->port->dev,
__func__, length, buffer);
/* Allocate our next urb */
urb = usb_alloc_urb (0, GFP_ATOMIC);
urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!urb)
return -ENOMEM;
atomic_inc(&CmdUrbs);
dbg("%s - ALLOCATE URB %p (outstanding %d)", __func__, urb, atomic_read(&CmdUrbs));
dbg("%s - ALLOCATE URB %p (outstanding %d)",
__func__, urb, atomic_read(&CmdUrbs));
usb_fill_bulk_urb (urb, edge_serial->serial->dev,
usb_sndbulkpipe(edge_serial->serial->dev, edge_serial->bulk_out_endpoint),
buffer, length, edge_bulk_out_cmd_callback, edge_port);
usb_fill_bulk_urb(urb, edge_serial->serial->dev,
usb_sndbulkpipe(edge_serial->serial->dev,
edge_serial->bulk_out_endpoint),
buffer, length, edge_bulk_out_cmd_callback, edge_port);
edge_port->commandPending = true;
status = usb_submit_urb(urb, GFP_ATOMIC);
if (status) {
/* something went wrong */
dev_err(&edge_port->port->dev, "%s - usb_submit_urb(write command) failed, status = %d\n", __func__, status);
dev_err(&edge_port->port->dev,
"%s - usb_submit_urb(write command) failed, status = %d\n",
__func__, status);
usb_kill_urb(urb);
usb_free_urb(urb);
atomic_dec(&CmdUrbs);
return status;
}
// wait for command to finish
/* wait for command to finish */
timeout = COMMAND_TIMEOUT;
#if 0
wait_event (&edge_port->wait_command, !edge_port->commandPending);
wait_event(&edge_port->wait_command, !edge_port->commandPending);
if (edge_port->commandPending) {
/* command timed out */
......@@ -2285,15 +2434,18 @@ static int write_cmd_usb (struct edgeport_port *edge_port, unsigned char *buffer
* this function sends the proper command to change the baud rate of the
* specified port.
*****************************************************************************/
static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRate)
static int send_cmd_write_baud_rate(struct edgeport_port *edge_port,
int baudRate)
{
struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial);
struct edgeport_serial *edge_serial =
usb_get_serial_data(edge_port->port->serial);
unsigned char *cmdBuffer;
unsigned char *currCmd;
int cmdLen = 0;
int divisor;
int status;
unsigned char number = edge_port->port->number - edge_port->port->serial->minor;
unsigned char number =
edge_port->port->number - edge_port->port->serial->minor;
if (edge_serial->is_epic &&
!edge_serial->epic_descriptor.Supports.IOSPSetBaudRate) {
......@@ -2302,36 +2454,40 @@ static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRa
return 0;
}
dbg("%s - port = %d, baud = %d", __func__, edge_port->port->number, baudRate);
dbg("%s - port = %d, baud = %d", __func__,
edge_port->port->number, baudRate);
status = calc_baud_rate_divisor (baudRate, &divisor);
status = calc_baud_rate_divisor(baudRate, &divisor);
if (status) {
dev_err(&edge_port->port->dev, "%s - bad baud rate\n", __func__);
dev_err(&edge_port->port->dev, "%s - bad baud rate\n",
__func__);
return status;
}
// Alloc memory for the string of commands.
cmdBuffer = kmalloc (0x100, GFP_ATOMIC);
/* Alloc memory for the string of commands. */
cmdBuffer = kmalloc(0x100, GFP_ATOMIC);
if (!cmdBuffer) {
dev_err(&edge_port->port->dev, "%s - kmalloc(%d) failed.\n", __func__, 0x100);
dev_err(&edge_port->port->dev,
"%s - kmalloc(%d) failed.\n", __func__, 0x100);
return -ENOMEM;
}
currCmd = cmdBuffer;
// Enable access to divisor latch
MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE );
/* Enable access to divisor latch */
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR, LCR_DL_ENABLE);
// Write the divisor itself
MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, DLL, LOW8 (divisor) );
MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, DLM, HIGH8(divisor) );
/* Write the divisor itself */
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLL, LOW8(divisor));
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, DLM, HIGH8(divisor));
// Restore original value to disable access to divisor latch
MAKE_CMD_WRITE_REG( &currCmd, &cmdLen, number, LCR, edge_port->shadowLCR);
/* Restore original value to disable access to divisor latch */
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen, number, LCR,
edge_port->shadowLCR);
status = write_cmd_usb(edge_port, cmdBuffer, cmdLen );
status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
if (status) {
/* something bad happened, let's free up the memory */
kfree (cmdBuffer);
kfree(cmdBuffer);
}
return status;
......@@ -2343,7 +2499,7 @@ static int send_cmd_write_baud_rate (struct edgeport_port *edge_port, int baudRa
* this function calculates the proper baud rate divisor for the specified
* baud rate.
*****************************************************************************/
static int calc_baud_rate_divisor (int baudrate, int *divisor)
static int calc_baud_rate_divisor(int baudrate, int *divisor)
{
int i;
__u16 custom;
......@@ -2352,17 +2508,17 @@ static int calc_baud_rate_divisor (int baudrate, int *divisor)
dbg("%s - %d", __func__, baudrate);
for (i = 0; i < ARRAY_SIZE(divisor_table); i++) {
if ( divisor_table[i].BaudRate == baudrate ) {
if (divisor_table[i].BaudRate == baudrate) {
*divisor = divisor_table[i].Divisor;
return 0;
}
}
// We have tried all of the standard baud rates
// lets try to calculate the divisor for this baud rate
// Make sure the baud rate is reasonable
/* We have tried all of the standard baud rates
* lets try to calculate the divisor for this baud rate
* Make sure the baud rate is reasonable */
if (baudrate > 50 && baudrate < 230400) {
// get divisor
/* get divisor */
custom = (__u16)((230400L + baudrate/2) / baudrate);
*divisor = custom;
......@@ -2377,17 +2533,20 @@ static int calc_baud_rate_divisor (int baudrate, int *divisor)
/*****************************************************************************
* send_cmd_write_uart_register
* this function builds up a uart register message and sends to to the device.
* this function builds up a uart register message and sends to to the device.
*****************************************************************************/
static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 regNum, __u8 regValue)
static int send_cmd_write_uart_register(struct edgeport_port *edge_port,
__u8 regNum, __u8 regValue)
{
struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial);
struct edgeport_serial *edge_serial =
usb_get_serial_data(edge_port->port->serial);
unsigned char *cmdBuffer;
unsigned char *currCmd;
unsigned long cmdLen = 0;
int status;
dbg("%s - write to %s register 0x%02x", (regNum == MCR) ? "MCR" : "LCR", __func__, regValue);
dbg("%s - write to %s register 0x%02x",
(regNum == MCR) ? "MCR" : "LCR", __func__, regValue);
if (edge_serial->is_epic &&
!edge_serial->epic_descriptor.Supports.IOSPWriteMCR &&
......@@ -2399,27 +2558,26 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
if (edge_serial->is_epic &&
!edge_serial->epic_descriptor.Supports.IOSPWriteLCR &&
regNum == LCR) {
dbg ("SendCmdWriteUartReg - Not writing to LCR Register");
dbg("SendCmdWriteUartReg - Not writing to LCR Register");
return 0;
}
// Alloc memory for the string of commands.
cmdBuffer = kmalloc (0x10, GFP_ATOMIC);
if (cmdBuffer == NULL ) {
/* Alloc memory for the string of commands. */
cmdBuffer = kmalloc(0x10, GFP_ATOMIC);
if (cmdBuffer == NULL)
return -ENOMEM;
}
currCmd = cmdBuffer;
// Build a cmd in the buffer to write the given register
MAKE_CMD_WRITE_REG (&currCmd, &cmdLen,
edge_port->port->number - edge_port->port->serial->minor,
regNum, regValue);
/* Build a cmd in the buffer to write the given register */
MAKE_CMD_WRITE_REG(&currCmd, &cmdLen,
edge_port->port->number - edge_port->port->serial->minor,
regNum, regValue);
status = write_cmd_usb(edge_port, cmdBuffer, cmdLen);
if (status) {
/* something bad happened, let's free up the memory */
kfree (cmdBuffer);
kfree(cmdBuffer);
}
return status;
......@@ -2428,14 +2586,15 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
/*****************************************************************************
* change_port_settings
* This routine is called to set the UART on the device to match the specified
* new settings.
* This routine is called to set the UART on the device to match the
* specified new settings.
*****************************************************************************/
static void change_port_settings(struct tty_struct *tty,
struct edgeport_port *edge_port, struct ktermios *old_termios)
{
struct edgeport_serial *edge_serial = usb_get_serial_data(edge_port->port->serial);
struct edgeport_serial *edge_serial =
usb_get_serial_data(edge_port->port->serial);
int baud;
unsigned cflag;
__u8 mask = 0xff;
......@@ -2457,11 +2616,23 @@ static void change_port_settings(struct tty_struct *tty,
cflag = tty->termios->c_cflag;
switch (cflag & CSIZE) {
case CS5: lData = LCR_BITS_5; mask = 0x1f; dbg("%s - data bits = 5", __func__); break;
case CS6: lData = LCR_BITS_6; mask = 0x3f; dbg("%s - data bits = 6", __func__); break;
case CS7: lData = LCR_BITS_7; mask = 0x7f; dbg("%s - data bits = 7", __func__); break;
default:
case CS8: lData = LCR_BITS_8; dbg("%s - data bits = 8", __func__); break;
case CS5:
lData = LCR_BITS_5; mask = 0x1f;
dbg("%s - data bits = 5", __func__);
break;
case CS6:
lData = LCR_BITS_6; mask = 0x3f;
dbg("%s - data bits = 6", __func__);
break;
case CS7:
lData = LCR_BITS_7; mask = 0x7f;
dbg("%s - data bits = 7", __func__);
break;
default:
case CS8:
lData = LCR_BITS_8;
dbg("%s - data bits = 8", __func__);
break;
}
lParity = LCR_PAR_NONE;
......@@ -2503,7 +2674,8 @@ static void change_port_settings(struct tty_struct *tty,
dbg("%s - RTS/CTS is disabled", __func__);
}
/* if we are implementing XON/XOFF, set the start and stop character in the device */
/* if we are implementing XON/XOFF, set the start and stop character
in the device */
if (I_IXOFF(tty) || I_IXON(tty)) {
unsigned char stop_char = STOP_CHAR(tty);
unsigned char start_char = START_CHAR(tty);
......@@ -2511,14 +2683,17 @@ static void change_port_settings(struct tty_struct *tty,
if ((!edge_serial->is_epic) ||
((edge_serial->is_epic) &&
(edge_serial->epic_descriptor.Supports.IOSPSetXChar))) {
send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_XON_CHAR, start_char);
send_iosp_ext_cmd(edge_port, IOSP_CMD_SET_XOFF_CHAR, stop_char);
send_iosp_ext_cmd(edge_port,
IOSP_CMD_SET_XON_CHAR, start_char);
send_iosp_ext_cmd(edge_port,
IOSP_CMD_SET_XOFF_CHAR, stop_char);
}
/* if we are implementing INBOUND XON/XOFF */
if (I_IXOFF(tty)) {
rxFlow |= IOSP_RX_FLOW_XON_XOFF;
dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", __func__, start_char, stop_char);
dbg("%s - INBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
__func__, start_char, stop_char);
} else {
dbg("%s - INBOUND XON/XOFF is disabled", __func__);
}
......@@ -2526,7 +2701,8 @@ static void change_port_settings(struct tty_struct *tty,
/* if we are implementing OUTBOUND XON/XOFF */
if (I_IXON(tty)) {
txFlow |= IOSP_TX_FLOW_XON_XOFF;
dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x", __func__, start_char, stop_char);
dbg("%s - OUTBOUND XON/XOFF is enabled, XON = %2x, XOFF = %2x",
__func__, start_char, stop_char);
} else {
dbg("%s - OUTBOUND XON/XOFF is disabled", __func__);
}
......@@ -2549,20 +2725,20 @@ static void change_port_settings(struct tty_struct *tty,
edge_port->validDataMask = mask;
/* Send the updated LCR value to the EdgePort */
status = send_cmd_write_uart_register(edge_port, LCR, edge_port->shadowLCR);
if (status != 0) {
status = send_cmd_write_uart_register(edge_port, LCR,
edge_port->shadowLCR);
if (status != 0)
return;
}
/* set up the MCR register and send it to the EdgePort */
edge_port->shadowMCR = MCR_MASTER_IE;
if (cflag & CBAUD) {
if (cflag & CBAUD)
edge_port->shadowMCR |= (MCR_DTR | MCR_RTS);
}
status = send_cmd_write_uart_register(edge_port, MCR, edge_port->shadowMCR);
if (status != 0) {
status = send_cmd_write_uart_register(edge_port, MCR,
edge_port->shadowMCR);
if (status != 0)
return;
}
/* Determine divisor based on baud rate */
baud = tty_get_baud_rate(tty);
......@@ -2572,7 +2748,7 @@ static void change_port_settings(struct tty_struct *tty,
}
dbg("%s - baud rate = %d", __func__, baud);
status = send_cmd_write_baud_rate (edge_port, baud);
status = send_cmd_write_baud_rate(edge_port, baud);
if (status == -1) {
/* Speed change was not possible - put back the old speed */
baud = tty_termios_baud_rate(old_termios);
......@@ -2589,7 +2765,8 @@ static void change_port_settings(struct tty_struct *tty,
* ASCII range, but it's only for debugging...
* NOTE: expects the unicode in LE format
****************************************************************************/
static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unicode_size)
static void unicode_to_ascii(char *string, int buflen,
__le16 *unicode, int unicode_size)
{
int i;
......@@ -2608,75 +2785,99 @@ static void unicode_to_ascii(char *string, int buflen, __le16 *unicode, int unic
/****************************************************************************
* get_manufacturing_desc
* reads in the manufacturing descriptor and stores it into the serial
* reads in the manufacturing descriptor and stores it into the serial
* structure.
****************************************************************************/
static void get_manufacturing_desc (struct edgeport_serial *edge_serial)
static void get_manufacturing_desc(struct edgeport_serial *edge_serial)
{
int response;
dbg("getting manufacturer descriptor");
response = rom_read (edge_serial->serial, (EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16,
(__u16)(EDGE_MANUF_DESC_ADDR & 0x0000ffff), EDGE_MANUF_DESC_LEN,
(__u8 *)(&edge_serial->manuf_descriptor));
response = rom_read(edge_serial->serial,
(EDGE_MANUF_DESC_ADDR & 0xffff0000) >> 16,
(__u16)(EDGE_MANUF_DESC_ADDR & 0x0000ffff),
EDGE_MANUF_DESC_LEN,
(__u8 *)(&edge_serial->manuf_descriptor));
if (response < 1) {
dev_err(&edge_serial->serial->dev->dev, "error in getting manufacturer descriptor\n");
} else {
if (response < 1)
dev_err(&edge_serial->serial->dev->dev,
"error in getting manufacturer descriptor\n");
else {
char string[30];
dbg("**Manufacturer Descriptor");
dbg(" RomSize: %dK", edge_serial->manuf_descriptor.RomSize);
dbg(" RamSize: %dK", edge_serial->manuf_descriptor.RamSize);
dbg(" CpuRev: %d", edge_serial->manuf_descriptor.CpuRev);
dbg(" BoardRev: %d", edge_serial->manuf_descriptor.BoardRev);
dbg(" NumPorts: %d", edge_serial->manuf_descriptor.NumPorts);
dbg(" DescDate: %d/%d/%d", edge_serial->manuf_descriptor.DescDate[0], edge_serial->manuf_descriptor.DescDate[1], edge_serial->manuf_descriptor.DescDate[2]+1900);
dbg(" RomSize: %dK",
edge_serial->manuf_descriptor.RomSize);
dbg(" RamSize: %dK",
edge_serial->manuf_descriptor.RamSize);
dbg(" CpuRev: %d",
edge_serial->manuf_descriptor.CpuRev);
dbg(" BoardRev: %d",
edge_serial->manuf_descriptor.BoardRev);
dbg(" NumPorts: %d",
edge_serial->manuf_descriptor.NumPorts);
dbg(" DescDate: %d/%d/%d",
edge_serial->manuf_descriptor.DescDate[0],
edge_serial->manuf_descriptor.DescDate[1],
edge_serial->manuf_descriptor.DescDate[2]+1900);
unicode_to_ascii(string, sizeof(string),
edge_serial->manuf_descriptor.SerialNumber,
edge_serial->manuf_descriptor.SerNumLength/2);
edge_serial->manuf_descriptor.SerialNumber,
edge_serial->manuf_descriptor.SerNumLength/2);
dbg(" SerialNumber: %s", string);
unicode_to_ascii(string, sizeof(string),
edge_serial->manuf_descriptor.AssemblyNumber,
edge_serial->manuf_descriptor.AssemblyNumLength/2);
edge_serial->manuf_descriptor.AssemblyNumber,
edge_serial->manuf_descriptor.AssemblyNumLength/2);
dbg(" AssemblyNumber: %s", string);
unicode_to_ascii(string, sizeof(string),
edge_serial->manuf_descriptor.OemAssyNumber,
edge_serial->manuf_descriptor.OemAssyNumLength/2);
dbg(" OemAssyNumber: %s", string);
dbg(" UartType: %d", edge_serial->manuf_descriptor.UartType);
dbg(" IonPid: %d", edge_serial->manuf_descriptor.IonPid);
dbg(" IonConfig: %d", edge_serial->manuf_descriptor.IonConfig);
dbg(" UartType: %d",
edge_serial->manuf_descriptor.UartType);
dbg(" IonPid: %d",
edge_serial->manuf_descriptor.IonPid);
dbg(" IonConfig: %d",
edge_serial->manuf_descriptor.IonConfig);
}
}
/****************************************************************************
* get_boot_desc
* reads in the bootloader descriptor and stores it into the serial
* reads in the bootloader descriptor and stores it into the serial
* structure.
****************************************************************************/
static void get_boot_desc (struct edgeport_serial *edge_serial)
static void get_boot_desc(struct edgeport_serial *edge_serial)
{
int response;
dbg("getting boot descriptor");
response = rom_read (edge_serial->serial, (EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16,
(__u16)(EDGE_BOOT_DESC_ADDR & 0x0000ffff), EDGE_BOOT_DESC_LEN,
(__u8 *)(&edge_serial->boot_descriptor));
response = rom_read(edge_serial->serial,
(EDGE_BOOT_DESC_ADDR & 0xffff0000) >> 16,
(__u16)(EDGE_BOOT_DESC_ADDR & 0x0000ffff),
EDGE_BOOT_DESC_LEN,
(__u8 *)(&edge_serial->boot_descriptor));
if (response < 1) {
dev_err(&edge_serial->serial->dev->dev, "error in getting boot descriptor\n");
} else {
if (response < 1)
dev_err(&edge_serial->serial->dev->dev,
"error in getting boot descriptor\n");
else {
dbg("**Boot Descriptor:");
dbg(" BootCodeLength: %d", le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
dbg(" MajorVersion: %d", edge_serial->boot_descriptor.MajorVersion);
dbg(" MinorVersion: %d", edge_serial->boot_descriptor.MinorVersion);
dbg(" BuildNumber: %d", le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
dbg(" Capabilities: 0x%x", le16_to_cpu(edge_serial->boot_descriptor.Capabilities));
dbg(" UConfig0: %d", edge_serial->boot_descriptor.UConfig0);
dbg(" UConfig1: %d", edge_serial->boot_descriptor.UConfig1);
dbg(" BootCodeLength: %d",
le16_to_cpu(edge_serial->boot_descriptor.BootCodeLength));
dbg(" MajorVersion: %d",
edge_serial->boot_descriptor.MajorVersion);
dbg(" MinorVersion: %d",
edge_serial->boot_descriptor.MinorVersion);
dbg(" BuildNumber: %d",
le16_to_cpu(edge_serial->boot_descriptor.BuildNumber));
dbg(" Capabilities: 0x%x",
le16_to_cpu(edge_serial->boot_descriptor.Capabilities));
dbg(" UConfig0: %d",
edge_serial->boot_descriptor.UConfig0);
dbg(" UConfig1: %d",
edge_serial->boot_descriptor.UConfig1);
}
}
......@@ -2685,7 +2886,7 @@ static void get_boot_desc (struct edgeport_serial *edge_serial)
* load_application_firmware
* This is called to load the application firmware to the device
****************************************************************************/
static void load_application_firmware (struct edgeport_serial *edge_serial)
static void load_application_firmware(struct edgeport_serial *edge_serial)
{
const struct ihex_binrec *rec;
const struct firmware *fw;
......@@ -2762,7 +2963,7 @@ static void load_application_firmware (struct edgeport_serial *edge_serial)
/****************************************************************************
* edge_startup
****************************************************************************/
static int edge_startup (struct usb_serial *serial)
static int edge_startup(struct usb_serial *serial)
{
struct edgeport_serial *edge_serial;
struct edgeport_port *edge_port;
......@@ -2804,10 +3005,10 @@ static int edge_startup (struct usb_serial *serial)
sizeof(struct edge_compatibility_bits));
/* get the manufacturing descriptor for this device */
get_manufacturing_desc (edge_serial);
get_manufacturing_desc(edge_serial);
/* get the boot descriptor */
get_boot_desc (edge_serial);
get_boot_desc(edge_serial);
get_product_info(edge_serial);
}
......@@ -2828,41 +3029,43 @@ static int edge_startup (struct usb_serial *serial)
/* If not an EPiC device */
if (!edge_serial->is_epic) {
/* now load the application firmware into this device */
load_application_firmware (edge_serial);
load_application_firmware(edge_serial);
dbg("%s - time 2 %ld", __func__, jiffies);
/* Check current Edgeport EEPROM and update if necessary */
update_edgeport_E2PROM (edge_serial);
update_edgeport_E2PROM(edge_serial);
dbg("%s - time 3 %ld", __func__, jiffies);
/* set the configuration to use #1 */
// dbg("set_configuration 1");
// usb_set_configuration (dev, 1);
/* dbg("set_configuration 1"); */
/* usb_set_configuration (dev, 1); */
}
dbg(" FirmwareMajorVersion %d.%d.%d",
edge_serial->product_info.FirmwareMajorVersion,
edge_serial->product_info.FirmwareMinorVersion,
le16_to_cpu(edge_serial->product_info.FirmwareBuildNumber));
/* we set up the pointers to the endpoints in the edge_open function,
/* we set up the pointers to the endpoints in the edge_open function,
* as the structures aren't created yet. */
/* set up our port private structures */
for (i = 0; i < serial->num_ports; ++i) {
edge_port = kmalloc (sizeof(struct edgeport_port), GFP_KERNEL);
edge_port = kmalloc(sizeof(struct edgeport_port), GFP_KERNEL);
if (edge_port == NULL) {
dev_err(&serial->dev->dev, "%s - Out of memory\n", __func__);
dev_err(&serial->dev->dev, "%s - Out of memory\n",
__func__);
for (j = 0; j < i; ++j) {
kfree (usb_get_serial_port_data(serial->port[j]));
usb_set_serial_port_data(serial->port[j], NULL);
kfree(usb_get_serial_port_data(serial->port[j]));
usb_set_serial_port_data(serial->port[j],
NULL);
}
usb_set_serial_data(serial, NULL);
kfree(edge_serial);
return -ENOMEM;
}
memset (edge_port, 0, sizeof(struct edgeport_port));
memset(edge_port, 0, sizeof(struct edgeport_port));
spin_lock_init(&edge_port->ep_lock);
edge_port->port = serial->port[i];
usb_set_serial_port_data(serial->port[i], edge_port);
......@@ -2871,14 +3074,16 @@ static int edge_startup (struct usb_serial *serial)
response = 0;
if (edge_serial->is_epic) {
/* EPIC thing, set up our interrupt polling now and our read urb, so
* that the device knows it really is connected. */
/* EPIC thing, set up our interrupt polling now and our read
* urb, so that the device knows it really is connected. */
interrupt_in_found = bulk_in_found = bulk_out_found = false;
for (i = 0; i < serial->interface->altsetting[0].desc.bNumEndpoints; ++i) {
for (i = 0; i < serial->interface->altsetting[0]
.desc.bNumEndpoints; ++i) {
struct usb_endpoint_descriptor *endpoint;
int buffer_size;
endpoint = &serial->interface->altsetting[0].endpoint[i].desc;
endpoint = &serial->interface->altsetting[0].
endpoint[i].desc;
buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
if (!interrupt_in_found &&
(usb_endpoint_is_int_in(endpoint))) {
......@@ -2886,58 +3091,67 @@ static int edge_startup (struct usb_serial *serial)
dbg("found interrupt in");
/* not set up yet, so do it now */
edge_serial->interrupt_read_urb = usb_alloc_urb(0, GFP_KERNEL);
edge_serial->interrupt_read_urb =
usb_alloc_urb(0, GFP_KERNEL);
if (!edge_serial->interrupt_read_urb) {
err("out of memory");
return -ENOMEM;
}
edge_serial->interrupt_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
edge_serial->interrupt_in_buffer =
kmalloc(buffer_size, GFP_KERNEL);
if (!edge_serial->interrupt_in_buffer) {
err("out of memory");
usb_free_urb(edge_serial->interrupt_read_urb);
return -ENOMEM;
}
edge_serial->interrupt_in_endpoint = endpoint->bEndpointAddress;
edge_serial->interrupt_in_endpoint =
endpoint->bEndpointAddress;
/* set up our interrupt urb */
usb_fill_int_urb(edge_serial->interrupt_read_urb,
dev,
usb_rcvintpipe(dev, endpoint->bEndpointAddress),
edge_serial->interrupt_in_buffer,
buffer_size,
edge_interrupt_callback,
edge_serial,
endpoint->bInterval);
usb_fill_int_urb(
edge_serial->interrupt_read_urb,
dev,
usb_rcvintpipe(dev,
endpoint->bEndpointAddress),
edge_serial->interrupt_in_buffer,
buffer_size,
edge_interrupt_callback,
edge_serial,
endpoint->bInterval);
interrupt_in_found = true;
}
if (!bulk_in_found &&
(usb_endpoint_is_bulk_in(endpoint))) {
(usb_endpoint_is_bulk_in(endpoint))) {
/* we found a bulk in endpoint */
dbg("found bulk in");
/* not set up yet, so do it now */
edge_serial->read_urb = usb_alloc_urb(0, GFP_KERNEL);
edge_serial->read_urb =
usb_alloc_urb(0, GFP_KERNEL);
if (!edge_serial->read_urb) {
err("out of memory");
return -ENOMEM;
}
edge_serial->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
edge_serial->bulk_in_buffer =
kmalloc(buffer_size, GFP_KERNEL);
if (!edge_serial->bulk_in_buffer) {
err ("out of memory");
err("out of memory");
usb_free_urb(edge_serial->read_urb);
return -ENOMEM;
}
edge_serial->bulk_in_endpoint = endpoint->bEndpointAddress;
edge_serial->bulk_in_endpoint =
endpoint->bEndpointAddress;
/* set up our bulk in urb */
usb_fill_bulk_urb(edge_serial->read_urb, dev,
usb_rcvbulkpipe(dev, endpoint->bEndpointAddress),
edge_serial->bulk_in_buffer,
le16_to_cpu(endpoint->wMaxPacketSize),
edge_bulk_in_callback,
edge_serial);
usb_rcvbulkpipe(dev,
endpoint->bEndpointAddress),
edge_serial->bulk_in_buffer,
le16_to_cpu(endpoint->wMaxPacketSize),
edge_bulk_in_callback,
edge_serial);
bulk_in_found = true;
}
......@@ -2945,21 +3159,24 @@ static int edge_startup (struct usb_serial *serial)
(usb_endpoint_is_bulk_out(endpoint))) {
/* we found a bulk out endpoint */
dbg("found bulk out");
edge_serial->bulk_out_endpoint = endpoint->bEndpointAddress;
edge_serial->bulk_out_endpoint =
endpoint->bEndpointAddress;
bulk_out_found = true;
}
}
if (!interrupt_in_found || !bulk_in_found || !bulk_out_found) {
err ("Error - the proper endpoints were not found!");
err("Error - the proper endpoints were not found!");
return -ENODEV;
}
/* start interrupt read for this edgeport this interrupt will
* continue as long as the edgeport is connected */
response = usb_submit_urb(edge_serial->interrupt_read_urb, GFP_KERNEL);
response = usb_submit_urb(edge_serial->interrupt_read_urb,
GFP_KERNEL);
if (response)
err("%s - Error %d submitting control urb", __func__, response);
err("%s - Error %d submitting control urb",
__func__, response);
}
return response;
}
......@@ -2969,7 +3186,7 @@ static int edge_startup (struct usb_serial *serial)
* edge_shutdown
* This function is called whenever the device is removed from the usb bus.
****************************************************************************/
static void edge_shutdown (struct usb_serial *serial)
static void edge_shutdown(struct usb_serial *serial)
{
struct edgeport_serial *edge_serial = usb_get_serial_data(serial);
int i;
......@@ -2977,8 +3194,8 @@ static void edge_shutdown (struct usb_serial *serial)
dbg("%s", __func__);
/* stop reads and writes on all ports */
for (i=0; i < serial->num_ports; ++i) {
kfree (usb_get_serial_port_data(serial->port[i]));
for (i = 0; i < serial->num_ports; ++i) {
kfree(usb_get_serial_port_data(serial->port[i]));
usb_set_serial_port_data(serial->port[i], NULL);
}
/* free up our endpoint stuff */
......@@ -3018,7 +3235,7 @@ static int __init edgeport_init(void)
if (retval)
goto failed_epic_device_register;
retval = usb_register(&io_driver);
if (retval)
if (retval)
goto failed_usb_register;
atomic_set(&CmdUrbs, 0);
info(DRIVER_DESC " " DRIVER_VERSION);
......@@ -3043,19 +3260,19 @@ static int __init edgeport_init(void)
****************************************************************************/
static void __exit edgeport_exit (void)
{
usb_deregister (&io_driver);
usb_serial_deregister (&edgeport_2port_device);
usb_serial_deregister (&edgeport_4port_device);
usb_serial_deregister (&edgeport_8port_device);
usb_serial_deregister (&epic_device);
usb_deregister(&io_driver);
usb_serial_deregister(&edgeport_2port_device);
usb_serial_deregister(&edgeport_4port_device);
usb_serial_deregister(&edgeport_8port_device);
usb_serial_deregister(&epic_device);
}
module_init(edgeport_init);
module_exit(edgeport_exit);
/* Module information */
MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("edgeport/boot.fw");
MODULE_FIRMWARE("edgeport/boot2.fw");
......
drivers/usb/serial/io_tables.h
浏览文件 @ 03f0dbf7
......@@ -8,7 +8,7 @@
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*
*/
#ifndef IO_TABLES_H
......@@ -90,10 +90,10 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(USB_VENDOR_ID_AXIOHM, AXIOHM_DEVICE_ID_EPIC_A758) },
{ USB_DEVICE(USB_VENDOR_ID_AXIOHM, AXIOHM_DEVICE_ID_EPIC_A794) },
{ USB_DEVICE(USB_VENDOR_ID_AXIOHM, AXIOHM_DEVICE_ID_EPIC_A225) },
{ } /* Terminating entry */
{ } /* Terminating entry */
};
MODULE_DEVICE_TABLE (usb, id_table_combined);
MODULE_DEVICE_TABLE(usb, id_table_combined);
static struct usb_driver io_driver = {
.name = "io_edgeport",
......
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