#include "cdc-acm.h"
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+
+/* adjust to 1 to avoid musb bug when lots write with clean urb */
+#undef ACM_NW
+#define ACM_NW 1
+/* adjust SZ to hsmaxp*20 to prevent tty disc don't accept big size write */
+#define ACM_WB_SZ (512*20)
+
+#define DATA_DUMP_BYTES 15 // wx, how many bytes we'll print out for each packet
+#define DATA_DUMP_SIZE 64 // wx, should be large enough to hold DATA_DUMP_DIGITS
+static unsigned char data_out[DATA_DUMP_SIZE];
+static unsigned char data_in[DATA_DUMP_SIZE];
+/* Debug functions */
+static int enable_debug = 0;
+static int enable_dump = 0;
+//origninal CDC-ACM log, more detail
+#undef dev_dbg
+#define dev_dbg(dev, format, args...) \
+ do{ \
+ if(enable_debug) { \
+ dev_printk(KERN_WARNING, dev, "[CDC-ACM] " format, ##args); \
+ } \
+ }while(0)
+#undef dev_vdbg
+#define dev_vdbg dev_dbg
+//MTK added CDC-ACM log, more critical
+#define dbg_mtk(dev, format, args...) \
+ do{ \
+ dev_printk(KERN_WARNING, dev, "[CDC-ACM-MTK] " format "\n", ##args); \
+ }while(0)
+#else
+#define dbg_mtk(dev, format, args...) do{}while(0)
+#endif
+
#define DRIVER_AUTHOR "Armin Fuerst, Pavel Machek, Johannes Erdfelt, Vojtech Pavlik, David Kubicek, Johan Hovold"
#define DRIVER_DESC "USB Abstract Control Model driver for USB modems and ISDN adapters"
static DEFINE_MUTEX(acm_table_lock);
+#define MYDBG(fmt, args...) do {printk(KERN_WARNING "MTK_ACM, <%s(), %d> " fmt, __func__, __LINE__, ## args); }while(0)
+
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+
+#define RECORD_SZ 100
+#define DUMP_DELAY 3
+struct record_entry
+{
+ struct timeval cur_time;
+ u32 transfer_buffer_length;
+ u32 actual_length;
+ int status;
+ unsigned char data;
+
+}w1[RECORD_SZ], w2[RECORD_SZ], r1[RECORD_SZ], r2[RECORD_SZ];
+
+static int w1_idx, w2_idx, r1_idx, r2_idx;
+static int record_enable = 0;
+static struct timeval tv_start;
+void dump_record(void)
+{
+ int i, index_limit;
+ struct record_entry *ptr;
+
+ index_limit = w1_idx;
+ ptr = w1;
+ for(i = 0; i < index_limit; i++){
+ MYDBG("w1, time:(%d,%d), reqlen:%d, data:%x\n",
+ (unsigned int)ptr[i].cur_time.tv_sec, (unsigned int)ptr[i].cur_time.tv_usec, (unsigned int)ptr[i].transfer_buffer_length, ptr[i].data);
+ mdelay(DUMP_DELAY);
+ }
+
+ index_limit = r1_idx;
+ ptr = r1;
+ for(i = 0; i < index_limit; i++){
+ MYDBG("r1, time:(%d,%d), reqlen:%d\n",
+ (unsigned int)ptr[i].cur_time.tv_sec, (unsigned int)ptr[i].cur_time.tv_usec, ptr[i].transfer_buffer_length);
+ mdelay(DUMP_DELAY);
+ }
+
+ index_limit = w2_idx;
+ ptr = w2;
+ for(i = 0; i < index_limit; i++){
+ MYDBG("w2, time:(%d,%d), reqlen:%d, actlen:%d, status:%d, data:%x\n",
+ (unsigned int)ptr[i].cur_time.tv_sec, (unsigned int)ptr[i].cur_time.tv_usec, ptr[i].transfer_buffer_length, ptr[i].actual_length, ptr[i].status, ptr[i].data);
+ mdelay(DUMP_DELAY);
+ }
+
+ index_limit = r2_idx;
+ ptr = r2;
+ for(i = 0; i < index_limit; i++){
+ MYDBG("r2, time:(%d,%d), reqlen:%d, actlen:%d, status:%d, data:%x\n",
+ (unsigned int)ptr[i].cur_time.tv_sec, (unsigned int)ptr[i].cur_time.tv_usec, ptr[i].transfer_buffer_length, ptr[i].actual_length, ptr[i].status, ptr[i].data);
+ mdelay(DUMP_DELAY);
+ }
+
+}
+void record_activity(struct urb *urb, int is_in, int is_complete)
+{
+ struct timeval tv_time;
+
+ if(!record_enable)
+ return;
+
+ do_gettimeofday(&tv_time);
+ tv_time.tv_sec = tv_time.tv_sec - tv_start.tv_sec;
+ tv_time.tv_usec = tv_time.tv_usec - tv_start.tv_usec;
+ if(is_in){
+ if(is_complete){
+ if(r2_idx >= RECORD_SZ)
+ return;
+
+ r2[r2_idx].cur_time = tv_time;
+ r2[r2_idx].transfer_buffer_length = urb->transfer_buffer_length;
+ r2[r2_idx].actual_length = urb->actual_length;
+ r2[r2_idx].status = urb->status;
+ r2[r2_idx].data = *((unsigned char*)urb->transfer_buffer);
+ r2_idx++;
+ return;
+ }
+ if(r1_idx >= RECORD_SZ)
+ return;
+ r1[r1_idx].cur_time = tv_time;
+ r1[r1_idx].transfer_buffer_length = urb->transfer_buffer_length;
+ r1[r1_idx].actual_length = urb->actual_length;
+ r1[r1_idx].status = urb->status;
+ r1_idx++;
+ }else{
+ if(is_complete){
+ if(w2_idx >= RECORD_SZ)
+ return;
+ w2[w2_idx].cur_time = tv_time;
+ w2[w2_idx].transfer_buffer_length = urb->transfer_buffer_length;
+ w2[w2_idx].actual_length = urb->actual_length;
+ w2[w2_idx].status = urb->status;
+ w2[w2_idx].data = *((unsigned char*)urb->transfer_buffer);
+ w2_idx++;
+ return;
+ }
+ if(w1_idx >= RECORD_SZ)
+ return;
+ w1[w1_idx].cur_time = tv_time;
+ w1[w1_idx].transfer_buffer_length = urb->transfer_buffer_length;
+ w1[w1_idx].actual_length = urb->actual_length;
+ w1[w1_idx].status = urb->status;
+ w1[w1_idx].data = *((unsigned char*)urb->transfer_buffer);
+ w1_idx++;
+ }
+}
+
+bool usb_h_acm_all_clear(void)
+{
+ int i;
+ int count = 0;
+ for (i = 0; i < ACM_TTY_MINORS; i++) {
+ if(acm_table[i] != NULL) {
+ count++;
+ }
+ }
+ MYDBG("count<%d>\n", count);
+ return !count;
+}
+EXPORT_SYMBOL_GPL(usb_h_acm_all_clear);
+
+#define CHECK_INTERVAL 2
+#define CB_NUM 3
+extern unsigned long volatile jiffies;
+static unsigned long callback_check_timeout[CB_NUM];
+static char *callback_name[CB_NUM] = {
+ "acm_read_bulk_callback",
+ "acm_write_bulk",
+ "acm_ctrl_irq",
+};
+void mark_callback_alive(char *func_name, struct urb *urb, struct acm *acm)
+{
+
+
+ int i;
+ for(i = 0; i < CB_NUM ; i++)
+ {
+ if(!strcmp(func_name, callback_name[i])){
+ if(enable_debug || time_after(jiffies, callback_check_timeout[i]))
+ {
+ MYDBG("%s,ep(%d),len(%d,%d),data(%x),sts(%d), minor(%d)\n",
+ func_name,
+ urb->ep->desc.bEndpointAddress,
+ urb->actual_length,
+ urb->transfer_buffer_length,
+ *((unsigned char*)urb->transfer_buffer),
+ urb->status,
+ acm->minor);
+ callback_check_timeout[i] = jiffies + HZ * CHECK_INTERVAL;
+ }
+ break;
+ }
+ }
+}
+
+
+#endif
+
/*
* acm_table accessors
*/
wb->urb->transfer_buffer_length = wb->len;
wb->urb->dev = acm->dev;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ record_activity(wb->urb, 0, 0);
+#endif
rc = usb_submit_urb(wb->urb, GFP_ATOMIC);
if (rc < 0) {
dev_err(&acm->data->dev,
case -ENOENT:
case -ESHUTDOWN:
/* this urb is terminated, clean up */
- dev_dbg(&acm->control->dev,
+ dev_err(&acm->control->dev,
"%s - urb shutting down with status: %d\n",
__func__, status);
return;
default:
- dev_dbg(&acm->control->dev,
+ dev_err(&acm->control->dev,
"%s - nonzero urb status received: %d\n",
__func__, status);
goto exit;
}
usb_mark_last_busy(acm->dev);
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ mark_callback_alive(__func__, urb, acm);
+#endif
data = (unsigned char *)(dr + 1);
switch (dr->bNotificationType) {
{
int res;
- if (!test_and_clear_bit(index, &acm->read_urbs_free))
+ if (!test_and_clear_bit(index, &acm->read_urbs_free)){
return 0;
+ }
dev_vdbg(&acm->data->dev, "%s - urb %d\n", __func__, index);
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ record_activity(acm->read_urbs[index], 1, 0);
+#endif
+
res = usb_submit_urb(acm->read_urbs[index], mem_flags);
if (res) {
+ MYDBG("urb fail(%d)\n", res);
if (res != -EPERM) {
dev_err(&acm->data->dev,
"%s - usb_submit_urb failed: %d\n",
for (i = 0; i < acm->rx_buflimit; ++i) {
res = acm_submit_read_urb(acm, i, mem_flags);
- if (res)
+ if (res){
return res;
+ }
}
return 0;
static void acm_process_read_urb(struct acm *acm, struct urb *urb)
{
- if (!urb->actual_length)
+
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ int i, len;
+#endif
+ if (!urb->actual_length){
return;
+ }
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ if(enable_dump) {
+ len = sprintf(data_in, "DT-I: ");
+ for(i=0; i<urb->actual_length && i<DATA_DUMP_BYTES; i++) {
+ len += sprintf(data_in+len, "%02X ", *(((unsigned char *)(urb->transfer_buffer))+i));
+ }
+ sprintf(data_in+len, "\n");
+ dbg_mtk(&acm->data->dev, "%s", data_in);
+ }
+#endif
tty_insert_flip_string(&acm->port, urb->transfer_buffer,
urb->actual_length);
rb->index, urb->actual_length);
set_bit(rb->index, &acm->read_urbs_free);
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ record_activity(urb, 1, 1);
+#endif
+
if (!acm->dev) {
dev_dbg(&acm->data->dev, "%s - disconnected\n", __func__);
return;
usb_mark_last_busy(acm->dev);
if (urb->status) {
- dev_dbg(&acm->data->dev, "%s - non-zero urb status: %d\n",
+ dev_err(&acm->data->dev, "%s - non-zero urb status: %d\n",
__func__, urb->status);
return;
}
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ mark_callback_alive(__func__, urb, acm);
+#endif
acm_process_read_urb(acm, urb);
/* throttle device if requested by tty */
struct acm *acm = wb->instance;
unsigned long flags;
- if (urb->status || (urb->actual_length != urb->transfer_buffer_length))
- dev_vdbg(&acm->data->dev, "%s - len %d/%d, status %d\n",
+
+ if (urb->status || (urb->actual_length != urb->transfer_buffer_length)){
+ dev_err(&acm->data->dev, "%s - len %d/%d, status %d, data(%x)\n",
__func__,
urb->actual_length,
urb->transfer_buffer_length,
- urb->status);
+ urb->status,
+ *((char *)(urb->transfer_buffer)));
+ }
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ record_activity(urb, 0, 1);
+#endif
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ mark_callback_alive(__func__, urb, acm);
+#endif
spin_lock_irqsave(&acm->write_lock, flags);
acm_write_done(acm, wb);
spin_unlock_irqrestore(&acm->write_lock, flags);
return retval;
}
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+extern struct usb_device *get_usb11_child_udev(void);
+extern int usb_autoresume_device(struct usb_device *udev);
+#endif
static int acm_tty_open(struct tty_struct *tty, struct file *filp)
{
- struct acm *acm = tty->driver_data;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ struct usb_device *udev;
+ int result;
+#endif
+ struct acm *acm;
+ acm = tty->driver_data;
+
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ dbg_mtk(&acm->control->dev, "%s port_cnt=%d", __func__, acm->port.count);
+ MYDBG("ctrl:%x, read:%x, write:%x\n",
+ (acm->control->cur_altsetting->endpoint[0].desc).bEndpointAddress,
+ (acm->data->cur_altsetting->endpoint[0].desc).bEndpointAddress,
+ (acm->data->cur_altsetting->endpoint[1].desc).bEndpointAddress);
+
+#define META_BIN_NAME "meta_tst"
+#define MDDOWNLOADER_BIN_NAME "downloader"
+
+ /* make sure usb1 is always alive in dl/meta mode */
+ if(!strcmp(META_BIN_NAME, current->comm) || !strcmp(MDDOWNLOADER_BIN_NAME, current->comm)){
+ udev = get_usb11_child_udev();
+ result = usb_autoresume_device(udev);
+ dbg_mtk(&acm->control->dev, "%s, auto result:%d", __func__, result);
+ }
+
+ if(!strcmp(MDDOWNLOADER_BIN_NAME, current->comm)){
+ record_enable = 1;
+ w1_idx = w2_idx = r1_idx = r2_idx = 0;
+ do_gettimeofday(&tv_start);
+ }
+
+#else
+ dev_dbg(&acm->control->dev, "%s\n", __func__);
+#endif
dev_dbg(tty->dev, "%s\n", __func__);
return tty_port_open(&acm->port, tty, filp);
*/
set_bit(TTY_NO_WRITE_SPLIT, &tty->flags);
acm->control->needs_remote_wakeup = 1;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+#ifdef CONFIG_PM_RUNTIME
+ acm->control->needs_remote_wakeup = 0;
+#endif
+#endif
acm->ctrlurb->dev = acm->dev;
if (usb_submit_urb(acm->ctrlurb, GFP_KERNEL)) {
{
struct acm *acm = tty->driver_data;
dev_dbg(&acm->control->dev, "%s\n", __func__);
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ dbg_mtk(&acm->control->dev, "%s port_cnt=%d", __func__, acm->port.count);
+ if(!strcmp(MDDOWNLOADER_BIN_NAME, current->comm)){
+ record_enable = 0;
+ dump_record();
+ }
+#endif
tty_port_close(&acm->port, tty, filp);
}
unsigned long flags;
int wbn;
struct acm_wb *wb;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ int i, len;
+#endif
if (!count)
return 0;
dev_vdbg(&acm->data->dev, "%s - count %d\n", __func__, count);
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ if(enable_dump) {
+ len = sprintf(data_out, "DT-O: ");
+ for(i=0; i<count && i<DATA_DUMP_BYTES; i++) {
+ len += sprintf(data_out+len, "%02X ", *(buf+i));
+ }
+ sprintf(data_out+len, "\n");
+ dbg_mtk(&acm->data->dev, "%s", data_out);
+ }
+#endif
spin_lock_irqsave(&acm->write_lock, flags);
wbn = acm_wb_alloc(acm);
if (wbn < 0) {
{
struct acm *acm = tty->driver_data;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ if(enable_dump) {
+ dbg_mtk(&acm->control->dev, "tiocmget ctrlin=%x\n", acm->ctrlin);
+ }
+#endif
return (acm->ctrlout & ACM_CTRL_DTR ? TIOCM_DTR : 0) |
(acm->ctrlout & ACM_CTRL_RTS ? TIOCM_RTS : 0) |
(acm->ctrlin & ACM_CTRL_DSR ? TIOCM_DSR : 0) |
struct acm *acm = tty->driver_data;
unsigned int newctrl;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ if(enable_dump) {
+ dbg_mtk(&acm->control->dev, "tiocmset ctrlout=%x\n", acm->ctrlout);
+ }
+#endif
newctrl = acm->ctrlout;
set = (set & TIOCM_DTR ? ACM_CTRL_DTR : 0) |
(set & TIOCM_RTS ? ACM_CTRL_RTS : 0);
readsize = usb_endpoint_maxp(epread) *
(quirks == SINGLE_RX_URB ? 1 : 2);
acm->combined_interfaces = combined_interfaces;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ acm->writesize = ACM_WB_SZ;
+#else
acm->writesize = usb_endpoint_maxp(epwrite) * 20;
+#endif
acm->control = control_interface;
acm->data = data_interface;
acm->minor = minor;
struct acm *acm = usb_get_intfdata(intf);
int cnt;
+ dbg_mtk(&acm->control->dev, "%s intf=%d", __func__, intf->cur_altsetting->desc.bInterfaceNumber);
spin_lock_irq(&acm->read_lock);
spin_lock(&acm->write_lock);
if (PMSG_IS_AUTO(message)) {
spin_unlock_irq(&acm->read_lock);
return -EBUSY;
}
+ }else{
+ int i;
+ for (i = 0; i < ACM_NW; i++){
+ if(acm->wb[i].use){
+ spin_unlock(&acm->write_lock);
+ spin_unlock_irq(&acm->read_lock);
+ return -EBUSY;
+ }
+ }
}
+
cnt = acm->susp_count++;
spin_unlock(&acm->write_lock);
spin_unlock_irq(&acm->read_lock);
struct urb *urb;
int rv = 0;
+ dbg_mtk(&acm->control->dev, "%s intf=%d", __func__, intf->cur_altsetting->desc.bInterfaceNumber);
+
spin_lock_irq(&acm->read_lock);
spin_lock(&acm->write_lock);
* delayed error checking because we must
* do the write path at all cost
*/
- if (rv < 0)
+ if (rv < 0){
+ MYDBG("urb fail:%d\n", rv);
goto out;
+ }
rv = acm_submit_read_urbs(acm, GFP_ATOMIC);
}
static int __init acm_init(void)
{
int retval;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ int i;
+#endif
acm_tty_driver = alloc_tty_driver(ACM_TTY_MINORS);
if (!acm_tty_driver)
return -ENOMEM;
acm_tty_driver->init_termios = tty_std_termios;
acm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD |
HUPCL | CLOCAL;
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+ /* wx, disable echo and other flags in the very beginning.
+ * otherwise RILD will disable them via calling tcsetattr() after it opened tty port,
+ * so there may be a gap between port opening and calling tcsetattr(). If modem send data
+ * at that time, things goes ugly.
+ */
+ acm_tty_driver->init_termios.c_iflag = 0;
+ acm_tty_driver->init_termios.c_oflag = 0;
+ acm_tty_driver->init_termios.c_lflag = 0;
+ for(i= 0; i < CB_NUM ; i++){
+ callback_check_timeout[i] = jiffies;
+ }
+#endif
tty_set_operations(acm_tty_driver, &acm_ops);
retval = tty_register_driver(acm_tty_driver);
module_init(acm_init);
module_exit(acm_exit);
+#ifdef CONFIG_MTK_DT_USB_SUPPORT
+module_param(enable_debug, int, 0644);
+module_param(enable_dump, int, 0644);
+#endif
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff