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-rw-r--r--drivers/usb/host/hwa-hc.c159
-rw-r--r--drivers/usb/host/whci/Kbuild1
-rw-r--r--drivers/usb/host/whci/asl.c46
-rw-r--r--drivers/usb/host/whci/debug.c189
-rw-r--r--drivers/usb/host/whci/hcd.c6
-rw-r--r--drivers/usb/host/whci/hw.c8
-rw-r--r--drivers/usb/host/whci/int.c1
-rw-r--r--drivers/usb/host/whci/pzl.c49
-rw-r--r--drivers/usb/host/whci/qset.c40
-rw-r--r--drivers/usb/host/whci/whcd.h11
-rw-r--r--drivers/usb/host/whci/whci-hc.h2
-rw-r--r--drivers/usb/host/whci/wusb.c43
12 files changed, 312 insertions, 243 deletions
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 64be4d8..8582236 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -54,7 +54,6 @@
* DWA).
*/
#include <linux/kernel.h>
-#include <linux/version.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/workqueue.h>
@@ -63,16 +62,12 @@
#include "../wusbcore/wa-hc.h"
#include "../wusbcore/wusbhc.h"
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
-
struct hwahc {
struct wusbhc wusbhc; /* has to be 1st */
struct wahc wa;
- u8 buffer[16]; /* for misc usb transactions */
};
-/**
+/*
* FIXME should be wusbhc
*
* NOTE: we need to cache the Cluster ID because later...there is no
@@ -126,7 +121,6 @@ static int hwahc_op_reset(struct usb_hcd *usb_hcd)
struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
struct device *dev = &hwahc->wa.usb_iface->dev;
- d_fnstart(4, dev, "(hwahc %p)\n", hwahc);
mutex_lock(&wusbhc->mutex);
wa_nep_disarm(&hwahc->wa);
result = __wa_set_feature(&hwahc->wa, WA_RESET);
@@ -134,7 +128,6 @@ static int hwahc_op_reset(struct usb_hcd *usb_hcd)
dev_err(dev, "error commanding HC to reset: %d\n", result);
goto error_unlock;
}
- d_printf(3, dev, "reset: waiting for device to change state\n");
result = __wa_wait_status(&hwahc->wa, WA_STATUS_RESETTING, 0);
if (result < 0) {
dev_err(dev, "error waiting for HC to reset: %d\n", result);
@@ -142,7 +135,6 @@ static int hwahc_op_reset(struct usb_hcd *usb_hcd)
}
error_unlock:
mutex_unlock(&wusbhc->mutex);
- d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result);
return result;
}
@@ -155,15 +147,9 @@ static int hwahc_op_start(struct usb_hcd *usb_hcd)
int result;
struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
- struct device *dev = &hwahc->wa.usb_iface->dev;
- /* Set up a Host Info WUSB Information Element */
- d_fnstart(4, dev, "(hwahc %p)\n", hwahc);
result = -ENOSPC;
mutex_lock(&wusbhc->mutex);
- /* Start the numbering from the top so that the bottom
- * range of the unauth addr space is used for devices,
- * the top for HCs; use 0xfe - RC# */
addr = wusb_cluster_id_get();
if (addr == 0)
goto error_cluster_id_get;
@@ -171,22 +157,14 @@ static int hwahc_op_start(struct usb_hcd *usb_hcd)
if (result < 0)
goto error_set_cluster_id;
- result = wa_nep_arm(&hwahc->wa, GFP_KERNEL);
- if (result < 0) {
- dev_err(dev, "cannot listen to notifications: %d\n", result);
- goto error_stop;
- }
usb_hcd->uses_new_polling = 1;
usb_hcd->poll_rh = 1;
usb_hcd->state = HC_STATE_RUNNING;
result = 0;
out:
mutex_unlock(&wusbhc->mutex);
- d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result);
return result;
-error_stop:
- __wa_stop(&hwahc->wa);
error_set_cluster_id:
wusb_cluster_id_put(wusbhc->cluster_id);
error_cluster_id_get:
@@ -194,39 +172,6 @@ error_cluster_id_get:
}
-/*
- * FIXME: break this function up
- */
-static int __hwahc_op_wusbhc_start(struct wusbhc *wusbhc)
-{
- int result;
- struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
- struct device *dev = &hwahc->wa.usb_iface->dev;
-
- /* Set up a Host Info WUSB Information Element */
- d_fnstart(4, dev, "(hwahc %p)\n", hwahc);
- result = -ENOSPC;
-
- result = __wa_set_feature(&hwahc->wa, WA_ENABLE);
- if (result < 0) {
- dev_err(dev, "error commanding HC to start: %d\n", result);
- goto error_stop;
- }
- result = __wa_wait_status(&hwahc->wa, WA_ENABLE, WA_ENABLE);
- if (result < 0) {
- dev_err(dev, "error waiting for HC to start: %d\n", result);
- goto error_stop;
- }
- result = 0;
-out:
- d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result);
- return result;
-
-error_stop:
- result = __wa_clear_feature(&hwahc->wa, WA_ENABLE);
- goto out;
-}
-
static int hwahc_op_suspend(struct usb_hcd *usb_hcd, pm_message_t msg)
{
struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
@@ -246,18 +191,6 @@ static int hwahc_op_resume(struct usb_hcd *usb_hcd)
return -ENOSYS;
}
-static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc)
-{
- int result;
- struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
- struct device *dev = &hwahc->wa.usb_iface->dev;
-
- d_fnstart(4, dev, "(hwahc %p)\n", hwahc);
- /* Nothing for now */
- d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result);
- return;
-}
-
/*
* No need to abort pipes, as when this is called, all the children
* has been disconnected and that has done it [through
@@ -266,21 +199,11 @@ static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc)
*/
static void hwahc_op_stop(struct usb_hcd *usb_hcd)
{
- int result;
struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
- struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
- struct wahc *wa = &hwahc->wa;
- struct device *dev = &wa->usb_iface->dev;
- d_fnstart(4, dev, "(hwahc %p)\n", hwahc);
mutex_lock(&wusbhc->mutex);
- wusbhc_stop(wusbhc);
- wa_nep_disarm(&hwahc->wa);
- result = __wa_stop(&hwahc->wa);
wusb_cluster_id_put(wusbhc->cluster_id);
mutex_unlock(&wusbhc->mutex);
- d_fnend(4, dev, "(hwahc %p) = %d\n", hwahc, result);
- return;
}
static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd)
@@ -325,6 +248,54 @@ static void hwahc_op_endpoint_disable(struct usb_hcd *usb_hcd,
rpipe_ep_disable(&hwahc->wa, ep);
}
+static int __hwahc_op_wusbhc_start(struct wusbhc *wusbhc)
+{
+ int result;
+ struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
+ struct device *dev = &hwahc->wa.usb_iface->dev;
+
+ result = __wa_set_feature(&hwahc->wa, WA_ENABLE);
+ if (result < 0) {
+ dev_err(dev, "error commanding HC to start: %d\n", result);
+ goto error_stop;
+ }
+ result = __wa_wait_status(&hwahc->wa, WA_ENABLE, WA_ENABLE);
+ if (result < 0) {
+ dev_err(dev, "error waiting for HC to start: %d\n", result);
+ goto error_stop;
+ }
+ result = wa_nep_arm(&hwahc->wa, GFP_KERNEL);
+ if (result < 0) {
+ dev_err(dev, "cannot listen to notifications: %d\n", result);
+ goto error_stop;
+ }
+ return result;
+
+error_stop:
+ __wa_clear_feature(&hwahc->wa, WA_ENABLE);
+ return result;
+}
+
+static void __hwahc_op_wusbhc_stop(struct wusbhc *wusbhc, int delay)
+{
+ struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
+ struct wahc *wa = &hwahc->wa;
+ u8 iface_no = wa->usb_iface->cur_altsetting->desc.bInterfaceNumber;
+ int ret;
+
+ ret = usb_control_msg(wa->usb_dev, usb_sndctrlpipe(wa->usb_dev, 0),
+ WUSB_REQ_CHAN_STOP,
+ USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ delay * 1000,
+ iface_no,
+ NULL, 0, 1000 /* FIXME: arbitrary */);
+ if (ret == 0)
+ msleep(delay);
+
+ wa_nep_disarm(&hwahc->wa);
+ __wa_stop(&hwahc->wa);
+}
+
/*
* Set the UWB MAS allocation for the WUSB cluster
*
@@ -581,11 +552,11 @@ static int wa_fill_descr(struct wahc *wa)
itr_size = le16_to_cpu(usb_dev->actconfig->desc.wTotalLength);
while (itr_size >= sizeof(*hdr)) {
hdr = (struct usb_descriptor_header *) itr;
- d_printf(3, dev, "Extra device descriptor: "
- "type %02x/%u bytes @ %zu (%zu left)\n",
- hdr->bDescriptorType, hdr->bLength,
- (itr - usb_dev->rawdescriptors[actconfig_idx]),
- itr_size);
+ dev_dbg(dev, "Extra device descriptor: "
+ "type %02x/%u bytes @ %zu (%zu left)\n",
+ hdr->bDescriptorType, hdr->bLength,
+ (itr - usb_dev->rawdescriptors[actconfig_idx]),
+ itr_size);
if (hdr->bDescriptorType == USB_DT_WIRE_ADAPTER)
goto found;
itr += hdr->bLength;
@@ -794,7 +765,6 @@ static void hwahc_destroy(struct hwahc *hwahc)
{
struct wusbhc *wusbhc = &hwahc->wusbhc;
- d_fnstart(1, NULL, "(hwahc %p)\n", hwahc);
mutex_lock(&wusbhc->mutex);
__wa_destroy(&hwahc->wa);
wusbhc_destroy(&hwahc->wusbhc);
@@ -804,7 +774,6 @@ static void hwahc_destroy(struct hwahc *hwahc)
usb_put_intf(hwahc->wa.usb_iface);
usb_put_dev(hwahc->wa.usb_dev);
mutex_unlock(&wusbhc->mutex);
- d_fnend(1, NULL, "(hwahc %p) = void\n", hwahc);
}
static void hwahc_init(struct hwahc *hwahc)
@@ -821,7 +790,6 @@ static int hwahc_probe(struct usb_interface *usb_iface,
struct hwahc *hwahc;
struct device *dev = &usb_iface->dev;
- d_fnstart(4, dev, "(%p, %p)\n", usb_iface, id);
result = -ENOMEM;
usb_hcd = usb_create_hcd(&hwahc_hc_driver, &usb_iface->dev, "wusb-hwa");
if (usb_hcd == NULL) {
@@ -848,7 +816,6 @@ static int hwahc_probe(struct usb_interface *usb_iface,
dev_err(dev, "Cannot setup phase B of WUSBHC: %d\n", result);
goto error_wusbhc_b_create;
}
- d_fnend(4, dev, "(%p, %p) = 0\n", usb_iface, id);
return 0;
error_wusbhc_b_create:
@@ -858,7 +825,6 @@ error_add_hcd:
error_hwahc_create:
usb_put_hcd(usb_hcd);
error_alloc:
- d_fnend(4, dev, "(%p, %p) = %d\n", usb_iface, id, result);
return result;
}
@@ -872,16 +838,12 @@ static void hwahc_disconnect(struct usb_interface *usb_iface)
wusbhc = usb_hcd_to_wusbhc(usb_hcd);
hwahc = container_of(wusbhc, struct hwahc, wusbhc);
- d_fnstart(1, NULL, "(hwahc %p [usb_iface %p])\n", hwahc, usb_iface);
wusbhc_b_destroy(&hwahc->wusbhc);
usb_remove_hcd(usb_hcd);
hwahc_destroy(hwahc);
usb_put_hcd(usb_hcd);
- d_fnend(1, NULL, "(hwahc %p [usb_iface %p]) = void\n", hwahc,
- usb_iface);
}
-/** USB device ID's that we handle */
static struct usb_device_id hwahc_id_table[] = {
/* FIXME: use class labels for this */
{ USB_INTERFACE_INFO(0xe0, 0x02, 0x01), },
@@ -898,18 +860,7 @@ static struct usb_driver hwahc_driver = {
static int __init hwahc_driver_init(void)
{
- int result;
- result = usb_register(&hwahc_driver);
- if (result < 0) {
- printk(KERN_ERR "WA-CDS: Cannot register USB driver: %d\n",
- result);
- goto error_usb_register;
- }
- return 0;
-
-error_usb_register:
- return result;
-
+ return usb_register(&hwahc_driver);
}
module_init(hwahc_driver_init);
diff --git a/drivers/usb/host/whci/Kbuild b/drivers/usb/host/whci/Kbuild
index 26a3871..11e5040 100644
--- a/drivers/usb/host/whci/Kbuild
+++ b/drivers/usb/host/whci/Kbuild
@@ -2,6 +2,7 @@ obj-$(CONFIG_USB_WHCI_HCD) += whci-hcd.o
whci-hcd-y := \
asl.o \
+ debug.o \
hcd.o \
hw.o \
init.o \
diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c
index 4d7078e..577c0d2 100644
--- a/drivers/usb/host/whci/asl.c
+++ b/drivers/usb/host/whci/asl.c
@@ -19,32 +19,11 @@
#include <linux/dma-mapping.h>
#include <linux/uwb/umc.h>
#include <linux/usb.h>
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
#include "../../wusbcore/wusbhc.h"
#include "whcd.h"
-#if D_LOCAL >= 4
-static void dump_asl(struct whc *whc, const char *tag)
-{
- struct device *dev = &whc->umc->dev;
- struct whc_qset *qset;
-
- d_printf(4, dev, "ASL %s\n", tag);
-
- list_for_each_entry(qset, &whc->async_list, list_node) {
- dump_qset(qset, dev);
- }
-}
-#else
-static inline void dump_asl(struct whc *whc, const char *tag)
-{
-}
-#endif
-
-
static void qset_get_next_prev(struct whc *whc, struct whc_qset *qset,
struct whc_qset **next, struct whc_qset **prev)
{
@@ -179,11 +158,26 @@ void asl_stop(struct whc *whc)
1000, "stop ASL");
}
+/**
+ * asl_update - request an ASL update and wait for the hardware to be synced
+ * @whc: the WHCI HC
+ * @wusbcmd: WUSBCMD value to start the update.
+ *
+ * If the WUSB HC is inactive (i.e., the ASL is stopped) then the
+ * update must be skipped as the hardware may not respond to update
+ * requests.
+ */
void asl_update(struct whc *whc, uint32_t wusbcmd)
{
- whc_write_wusbcmd(whc, wusbcmd, wusbcmd);
- wait_event(whc->async_list_wq,
- (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0);
+ struct wusbhc *wusbhc = &whc->wusbhc;
+
+ mutex_lock(&wusbhc->mutex);
+ if (wusbhc->active) {
+ whc_write_wusbcmd(whc, wusbcmd, wusbcmd);
+ wait_event(whc->async_list_wq,
+ (le_readl(whc->base + WUSBCMD) & WUSBCMD_ASYNC_UPDATED) == 0);
+ }
+ mutex_unlock(&wusbhc->mutex);
}
/**
@@ -202,8 +196,6 @@ void scan_async_work(struct work_struct *work)
spin_lock_irq(&whc->lock);
- dump_asl(whc, "before processing");
-
/*
* Transerve the software list backwards so new qsets can be
* safely inserted into the ASL without making it non-circular.
@@ -217,8 +209,6 @@ void scan_async_work(struct work_struct *work)
update |= process_qset(whc, qset);
}
- dump_asl(whc, "after processing");
-
spin_unlock_irq(&whc->lock);
if (update) {
diff --git a/drivers/usb/host/whci/debug.c b/drivers/usb/host/whci/debug.c
new file mode 100644
index 0000000..cf2d459
--- /dev/null
+++ b/drivers/usb/host/whci/debug.c
@@ -0,0 +1,189 @@
+/*
+ * Wireless Host Controller (WHC) debug.
+ *
+ * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/kernel.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#include "../../wusbcore/wusbhc.h"
+
+#include "whcd.h"
+
+struct whc_dbg {
+ struct dentry *di_f;
+ struct dentry *asl_f;
+ struct dentry *pzl_f;
+};
+
+void qset_print(struct seq_file *s, struct whc_qset *qset)
+{
+ struct whc_std *std;
+ struct urb *urb = NULL;
+ int i;
+
+ seq_printf(s, "qset %08x\n", (u32)qset->qset_dma);
+ seq_printf(s, " -> %08x\n", (u32)qset->qh.link);
+ seq_printf(s, " info: %08x %08x %08x\n",
+ qset->qh.info1, qset->qh.info2, qset->qh.info3);
+ seq_printf(s, " sts: %04x errs: %d\n", qset->qh.status, qset->qh.err_count);
+ seq_printf(s, " TD: sts: %08x opts: %08x\n",
+ qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options);
+
+ for (i = 0; i < WHCI_QSET_TD_MAX; i++) {
+ seq_printf(s, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n",
+ i == qset->td_start ? 'S' : ' ',
+ i == qset->td_end ? 'E' : ' ',
+ i, qset->qtd[i].status, qset->qtd[i].options,
+ (u32)qset->qtd[i].page_list_ptr);
+ }
+ seq_printf(s, " ntds: %d\n", qset->ntds);
+ list_for_each_entry(std, &qset->stds, list_node) {
+ if (urb != std->urb) {
+ urb = std->urb;
+ seq_printf(s, " urb %p transferred: %d bytes\n", urb,
+ urb->actual_length);
+ }
+ if (std->qtd)
+ seq_printf(s, " sTD[%td]: %zu bytes @ %08x\n",
+ std->qtd - &qset->qtd[0],
+ std->len, std->num_pointers ?
+ (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr);
+ else
+ seq_printf(s, " sTD[-]: %zd bytes @ %08x\n",
+ std->len, std->num_pointers ?
+ (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr);
+ }
+}
+
+static int di_print(struct seq_file *s, void *p)
+{
+ struct whc *whc = s->private;
+ char buf[72];
+ int d;
+
+ for (d = 0; d < whc->n_devices; d++) {
+ struct di_buf_entry *di = &whc->di_buf[d];
+
+ bitmap_scnprintf(buf, sizeof(buf),
+ (unsigned long *)di->availability_info, UWB_NUM_MAS);
+
+ seq_printf(s, "DI[%d]\n", d);
+ seq_printf(s, " availability: %s\n", buf);
+ seq_printf(s, " %c%c key idx: %d dev addr: %d\n",
+ (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ',
+ (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ',
+ (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8,
+ (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK));
+ }
+ return 0;
+}
+
+static int asl_print(struct seq_file *s, void *p)
+{
+ struct whc *whc = s->private;
+ struct whc_qset *qset;
+
+ list_for_each_entry(qset, &whc->async_list, list_node) {
+ qset_print(s, qset);
+ }
+
+ return 0;
+}
+
+static int pzl_print(struct seq_file *s, void *p)
+{
+ struct whc *whc = s->private;
+ struct whc_qset *qset;
+ int period;
+
+ for (period = 0; period < 5; period++) {
+ seq_printf(s, "Period %d\n", period);
+ list_for_each_entry(qset, &whc->periodic_list[period], list_node) {
+ qset_print(s, qset);
+ }
+ }
+ return 0;
+}
+
+static int di_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, di_print, inode->i_private);
+}
+
+static int asl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, asl_print, inode->i_private);
+}
+
+static int pzl_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pzl_print, inode->i_private);
+}
+
+static struct file_operations di_fops = {
+ .open = di_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static struct file_operations asl_fops = {
+ .open = asl_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static struct file_operations pzl_fops = {
+ .open = pzl_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+void whc_dbg_init(struct whc *whc)
+{
+ if (whc->wusbhc.pal.debugfs_dir == NULL)
+ return;
+
+ whc->dbg = kzalloc(sizeof(struct whc_dbg), GFP_KERNEL);
+ if (whc->dbg == NULL)
+ return;
+
+ whc->dbg->di_f = debugfs_create_file("di", 0444,
+ whc->wusbhc.pal.debugfs_dir, whc,
+ &di_fops);
+ whc->dbg->asl_f = debugfs_create_file("asl", 0444,
+ whc->wusbhc.pal.debugfs_dir, whc,
+ &asl_fops);
+ whc->dbg->pzl_f = debugfs_create_file("pzl", 0444,
+ whc->wusbhc.pal.debugfs_dir, whc,
+ &pzl_fops);
+}
+
+void whc_dbg_clean_up(struct whc *whc)
+{
+ if (whc->dbg) {
+ debugfs_remove(whc->dbg->pzl_f);
+ debugfs_remove(whc->dbg->asl_f);
+ debugfs_remove(whc->dbg->di_f);
+ kfree(whc->dbg);
+ }
+}
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index ef3ad4d..1569afd 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -15,7 +15,6 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/uwb/umc.h>
@@ -92,8 +91,6 @@ static void whc_stop(struct usb_hcd *usb_hcd)
mutex_lock(&wusbhc->mutex);
- wusbhc_stop(wusbhc);
-
/* stop HC */
le_writel(0, whc->base + WUSBINTR);
whc_write_wusbcmd(whc, WUSBCMD_RUN, 0);
@@ -276,6 +273,8 @@ static int whc_probe(struct umc_dev *umc)
goto error_wusbhc_b_create;
}
+ whc_dbg_init(whc);
+
return 0;
error_wusbhc_b_create:
@@ -299,6 +298,7 @@ static void whc_remove(struct umc_dev *umc)
struct whc *whc = wusbhc_to_whc(wusbhc);
if (usb_hcd) {
+ whc_dbg_clean_up(whc);
wusbhc_b_destroy(wusbhc);
usb_remove_hcd(usb_hcd);
wusbhc_destroy(wusbhc);
diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c
index ac86e59..d498e72 100644
--- a/drivers/usb/host/whci/hw.c
+++ b/drivers/usb/host/whci/hw.c
@@ -50,6 +50,7 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
unsigned long flags;
dma_addr_t dma_addr;
int t;
+ int ret = 0;
mutex_lock(&whc->mutex);
@@ -61,7 +62,8 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
dev_err(&whc->umc->dev, "generic command timeout (%04x/%04x)\n",
le_readl(whc->base + WUSBGENCMDSTS),
le_readl(whc->base + WUSBGENCMDPARAMS));
- return -ETIMEDOUT;
+ ret = -ETIMEDOUT;
+ goto out;
}
if (addr) {
@@ -80,8 +82,8 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len)
whc->base + WUSBGENCMDSTS);
spin_unlock_irqrestore(&whc->lock, flags);
-
+out:
mutex_unlock(&whc->mutex);
- return 0;
+ return ret;
}
diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c
index fce0117..6aae700 100644
--- a/drivers/usb/host/whci/int.c
+++ b/drivers/usb/host/whci/int.c
@@ -15,7 +15,6 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/uwb/umc.h>
diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c
index 8d62df0..2ae5abf 100644
--- a/drivers/usb/host/whci/pzl.c
+++ b/drivers/usb/host/whci/pzl.c
@@ -19,35 +19,11 @@
#include <linux/dma-mapping.h>
#include <linux/uwb/umc.h>
#include <linux/usb.h>
-#define D_LOCAL 0
-#include <linux/uwb/debug.h>
#include "../../wusbcore/wusbhc.h"
#include "whcd.h"
-#if D_LOCAL >= 4
-static void dump_pzl(struct whc *whc, const char *tag)
-{
- struct device *dev = &whc->umc->dev;
- struct whc_qset *qset;
- int period = 0;
-
- d_printf(4, dev, "PZL %s\n", tag);
-
- for (period = 0; period < 5; period++) {
- d_printf(4, dev, "Period %d\n", period);
- list_for_each_entry(qset, &whc->periodic_list[period], list_node) {
- dump_qset(qset, dev);
- }
- }
-}
-#else
-static inline void dump_pzl(struct whc *whc, const char *tag)
-{
-}
-#endif
-
static void update_pzl_pointers(struct whc *whc, int period, u64 addr)
{
switch (period) {
@@ -195,11 +171,26 @@ void pzl_stop(struct whc *whc)
1000, "stop PZL");
}
+/**
+ * pzl_update - request a PZL update and wait for the hardware to be synced
+ * @whc: the WHCI HC
+ * @wusbcmd: WUSBCMD value to start the update.
+ *
+ * If the WUSB HC is inactive (i.e., the PZL is stopped) then the
+ * update must be skipped as the hardware may not respond to update
+ * requests.
+ */
void pzl_update(struct whc *whc, uint32_t wusbcmd)
{
- whc_write_wusbcmd(whc, wusbcmd, wusbcmd);
- wait_event(whc->periodic_list_wq,
- (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0);
+ struct wusbhc *wusbhc = &whc->wusbhc;
+
+ mutex_lock(&wusbhc->mutex);
+ if (wusbhc->active) {
+ whc_write_wusbcmd(whc, wusbcmd, wusbcmd);
+ wait_event(whc->periodic_list_wq,
+ (le_readl(whc->base + WUSBCMD) & WUSBCMD_PERIODIC_UPDATED) == 0);
+ }
+ mutex_unlock(&wusbhc->mutex);
}
static void update_pzl_hw_view(struct whc *whc)
@@ -235,8 +226,6 @@ void scan_periodic_work(struct work_struct *work)
spin_lock_irq(&whc->lock);
- dump_pzl(whc, "before processing");
-
for (period = 4; period >= 0; period--) {
list_for_each_entry_safe(qset, t, &whc->periodic_list[period], list_node) {
if (!qset->in_hw_list)
@@ -248,8 +237,6 @@ void scan_periodic_work(struct work_struct *work)
if (update & (WHC_UPDATE_ADDED | WHC_UPDATE_REMOVED))
update_pzl_hw_view(whc);
- dump_pzl(whc, "after processing");
-
spin_unlock_irq(&whc->lock);
if (update) {
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index 0420037..7be7431 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -24,46 +24,6 @@
#include "whcd.h"
-void dump_qset(struct whc_qset *qset, struct device *dev)
-{
- struct whc_std *std;
- struct urb *urb = NULL;
- int i;
-
- dev_dbg(dev, "qset %08x\n", (u32)qset->qset_dma);
- dev_dbg(dev, " -> %08x\n", (u32)qset->qh.link);
- dev_dbg(dev, " info: %08x %08x %08x\n",
- qset->qh.info1, qset->qh.info2, qset->qh.info3);
- dev_dbg(dev, " sts: %04x errs: %d\n", qset->qh.status, qset->qh.err_count);
- dev_dbg(dev, " TD: sts: %08x opts: %08x\n",
- qset->qh.overlay.qtd.status, qset->qh.overlay.qtd.options);
-
- for (i = 0; i < WHCI_QSET_TD_MAX; i++) {
- dev_dbg(dev, " %c%c TD[%d]: sts: %08x opts: %08x ptr: %08x\n",
- i == qset->td_start ? 'S' : ' ',
- i == qset->td_end ? 'E' : ' ',
- i, qset->qtd[i].status, qset->qtd[i].options,
- (u32)qset->qtd[i].page_list_ptr);
- }
- dev_dbg(dev, " ntds: %d\n", qset->ntds);
- list_for_each_entry(std, &qset->stds, list_node) {
- if (urb != std->urb) {
- urb = std->urb;
- dev_dbg(dev, " urb %p transferred: %d bytes\n", urb,
- urb->actual_length);
- }
- if (std->qtd)
- dev_dbg(dev, " sTD[%td]: %zu bytes @ %08x\n",
- std->qtd - &qset->qtd[0],
- std->len, std->num_pointers ?
- (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr);
- else
- dev_dbg(dev, " sTD[-]: %zd bytes @ %08x\n",
- std->len, std->num_pointers ?
- (u32)(std->pl_virt[0].buf_ptr) : (u32)std->dma_addr);
- }
-}
-
struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags)
{
struct whc_qset *qset;
diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h
index 1d2a53b..0f3540f 100644
--- a/drivers/usb/host/whci/whcd.h
+++ b/drivers/usb/host/whci/whcd.h
@@ -21,6 +21,7 @@
#define __WHCD_H
#include <linux/uwb/whci.h>
+#include <linux/uwb/umc.h>
#include <linux/workqueue.h>
#include "whci-hc.h"
@@ -28,6 +29,7 @@
/* Generic command timeout. */
#define WHC_GENCMD_TIMEOUT_MS 100
+struct whc_dbg;
struct whc {
struct wusbhc wusbhc;
@@ -69,6 +71,8 @@ struct whc {
struct list_head periodic_removed_list;
wait_queue_head_t periodic_list_wq;
struct work_struct periodic_work;
+
+ struct whc_dbg *dbg;
};
#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc))
@@ -136,7 +140,7 @@ int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len);
/* wusb.c */
int whc_wusbhc_start(struct wusbhc *wusbhc);
-void whc_wusbhc_stop(struct wusbhc *wusbhc);
+void whc_wusbhc_stop(struct wusbhc *wusbhc, int delay);
int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt,
u8 handle, struct wuie_hdr *wuie);
int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle);
@@ -190,8 +194,11 @@ void process_inactive_qtd(struct whc *whc, struct whc_qset *qset,
struct whc_qtd *qtd);
enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset);
void qset_remove_complete(struct whc *whc, struct whc_qset *qset);
-void dump_qset(struct whc_qset *qset, struct device *dev);
void pzl_update(struct whc *whc, uint32_t wusbcmd);
void asl_update(struct whc *whc, uint32_t wusbcmd);
+/* debug.c */
+void whc_dbg_init(struct whc *whc);
+void whc_dbg_clean_up(struct whc *whc);
+
#endif /* #ifndef __WHCD_H */
diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h
index bff1eb7..51df7e3 100644
--- a/drivers/usb/host/whci/whci-hc.h
+++ b/drivers/usb/host/whci/whci-hc.h
@@ -410,6 +410,8 @@ struct dn_buf_entry {
# define WUSBDNTSCTRL_SLOTS(s) ((s) << 0)
#define WUSBTIME 0x68
+# define WUSBTIME_CHANNEL_TIME_MASK 0x00ffffff
+
#define WUSBBPST 0x6c
#define WUSBDIBUPDATED 0x70
diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c
index 66e4ddc..f24efde 100644
--- a/drivers/usb/host/whci/wusb.c
+++ b/drivers/usb/host/whci/wusb.c
@@ -15,47 +15,19 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/uwb/umc.h>
-#define D_LOCAL 1
-#include <linux/uwb/debug.h>
#include "../../wusbcore/wusbhc.h"
#include "whcd.h"
-#if D_LOCAL >= 1
-static void dump_di(struct whc *whc, int idx)
-{
- struct di_buf_entry *di = &whc->di_buf[idx];
- struct device *dev = &whc->umc->dev;
- char buf[128];
-
- bitmap_scnprintf(buf, sizeof(buf), (unsigned long *)di->availability_info, UWB_NUM_MAS);
-
- d_printf(1, dev, "DI[%d]\n", idx);
- d_printf(1, dev, " availability: %s\n", buf);
- d_printf(1, dev, " %c%c key idx: %d dev addr: %d\n",
- (di->addr_sec_info & WHC_DI_SECURE) ? 'S' : ' ',
- (di->addr_sec_info & WHC_DI_DISABLE) ? 'D' : ' ',
- (di->addr_sec_info & WHC_DI_KEY_IDX_MASK) >> 8,
- (di->addr_sec_info & WHC_DI_DEV_ADDR_MASK));
-}
-#else
-static inline void dump_di(struct whc *whc, int idx)
-{
-}
-#endif
-
static int whc_update_di(struct whc *whc, int idx)
{
int offset = idx / 32;
u32 bit = 1 << (idx % 32);
- dump_di(whc, idx);
-
le_writel(bit, whc->base + WUSBDIBUPDATED + offset);
return whci_wait_for(&whc->umc->dev,
@@ -64,8 +36,9 @@ static int whc_update_di(struct whc *whc, int idx)
}
/*
- * WHCI starts and stops MMCs based on there being a valid GTK so
- * these need only start/stop the asynchronous and periodic schedules.
+ * WHCI starts MMCs based on there being a valid GTK so these need
+ * only start/stop the asynchronous and periodic schedules and send a
+ * channel stop command.
*/
int whc_wusbhc_start(struct wusbhc *wusbhc)
@@ -78,12 +51,20 @@ int whc_wusbhc_start(struct wusbhc *wusbhc)
return 0;
}
-void whc_wusbhc_stop(struct wusbhc *wusbhc)
+void whc_wusbhc_stop(struct wusbhc *wusbhc, int delay)
{
struct whc *whc = wusbhc_to_whc(wusbhc);
+ u32 stop_time, now_time;
+ int ret;
pzl_stop(whc);
asl_stop(whc);
+
+ now_time = le_readl(whc->base + WUSBTIME) & WUSBTIME_CHANNEL_TIME_MASK;
+ stop_time = (now_time + ((delay * 8) << 7)) & 0x00ffffff;
+ ret = whc_do_gencmd(whc, WUSBGENCMDSTS_CHAN_STOP, stop_time, NULL, 0);
+ if (ret == 0)
+ msleep(delay);
}
int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt,
generated by cgit v1.1 at 2024-10-30 07:25:56 +0000