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Diffstat (limited to 'recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch')
-rw-r--r--recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch280
1 files changed, 280 insertions, 0 deletions
diff --git a/recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch b/recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch
new file mode 100644
index 0000000000..5163361da3
--- /dev/null
+++ b/recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch
@@ -0,0 +1,280 @@
+From 71857e8f6c4a8d2d3eac3037f02e0c30c6fdb37e Mon Sep 17 00:00:00 2001
+From: Dmitry Baryshkov <dbaryshkov@gmail.com>
+Date: Wed, 9 Jan 2008 01:43:28 +0300
+Subject: [PATCH 17/64] Convert pxa2xx UDC to use debugfs
+
+Use debugfs instead of /proc/driver/udc
+
+Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
+---
+ drivers/usb/gadget/pxa2xx_udc.c | 100 +++++++++++++++++----------------------
+ drivers/usb/gadget/pxa2xx_udc.h | 10 +++-
+ 2 files changed, 51 insertions(+), 59 deletions(-)
+
+diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c
+index 4f7d4ef..2900556 100644
+--- a/drivers/usb/gadget/pxa2xx_udc.c
++++ b/drivers/usb/gadget/pxa2xx_udc.c
+@@ -38,13 +38,14 @@
+ #include <linux/timer.h>
+ #include <linux/list.h>
+ #include <linux/interrupt.h>
+-#include <linux/proc_fs.h>
+ #include <linux/mm.h>
+ #include <linux/platform_device.h>
+ #include <linux/dma-mapping.h>
+ #include <linux/irq.h>
+ #include <linux/clk.h>
+ #include <linux/err.h>
++#include <linux/seq_file.h>
++#include <linux/debugfs.h>
+
+ #include <asm/byteorder.h>
+ #include <asm/dma.h>
+@@ -993,45 +994,36 @@ static const struct usb_gadget_ops pxa2xx_udc_ops = {
+
+ /*-------------------------------------------------------------------------*/
+
+-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+-
+-static const char proc_node_name [] = "driver/udc";
++#ifdef CONFIG_USB_GADGET_DEBUG_FS
+
++static struct pxa2xx_udc memory;
+ static int
+-udc_proc_read(char *page, char **start, off_t off, int count,
+- int *eof, void *_dev)
++udc_seq_show(struct seq_file *m, void *d)
+ {
+- char *buf = page;
+- struct pxa2xx_udc *dev = _dev;
+- char *next = buf;
+- unsigned size = count;
++ struct pxa2xx_udc *dev = m->private;
+ unsigned long flags;
+- int i, t;
++ int i;
+ u32 tmp;
+
+- if (off != 0)
+- return 0;
++
++ BUG_ON(dev == NULL);
+
+ local_irq_save(flags);
+
+ /* basic device status */
+- t = scnprintf(next, size, DRIVER_DESC "\n"
++ seq_printf(m, DRIVER_DESC "\n"
+ "%s version: %s\nGadget driver: %s\nHost %s\n\n",
+ driver_name, DRIVER_VERSION SIZE_STR "(pio)",
+ dev->driver ? dev->driver->driver.name : "(none)",
+ is_vbus_present() ? "full speed" : "disconnected");
+- size -= t;
+- next += t;
+
+ /* registers for device and ep0 */
+- t = scnprintf(next, size,
++ seq_printf(m,
+ "uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n",
+ UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL);
+- size -= t;
+- next += t;
+
+ tmp = UDCCR;
+- t = scnprintf(next, size,
++ seq_printf(m,
+ "udccr %02X =%s%s%s%s%s%s%s%s\n", tmp,
+ (tmp & UDCCR_REM) ? " rem" : "",
+ (tmp & UDCCR_RSTIR) ? " rstir" : "",
+@@ -1041,11 +1033,9 @@ udc_proc_read(char *page, char **start, off_t off, int count,
+ (tmp & UDCCR_RSM) ? " rsm" : "",
+ (tmp & UDCCR_UDA) ? " uda" : "",
+ (tmp & UDCCR_UDE) ? " ude" : "");
+- size -= t;
+- next += t;
+
+ tmp = UDCCS0;
+- t = scnprintf(next, size,
++ seq_printf(m,
+ "udccs0 %02X =%s%s%s%s%s%s%s%s\n", tmp,
+ (tmp & UDCCS0_SA) ? " sa" : "",
+ (tmp & UDCCS0_RNE) ? " rne" : "",
+@@ -1055,28 +1045,22 @@ udc_proc_read(char *page, char **start, off_t off, int count,
+ (tmp & UDCCS0_FTF) ? " ftf" : "",
+ (tmp & UDCCS0_IPR) ? " ipr" : "",
+ (tmp & UDCCS0_OPR) ? " opr" : "");
+- size -= t;
+- next += t;
+
+ if (dev->has_cfr) {
+ tmp = UDCCFR;
+- t = scnprintf(next, size,
++ seq_printf(m,
+ "udccfr %02X =%s%s\n", tmp,
+ (tmp & UDCCFR_AREN) ? " aren" : "",
+ (tmp & UDCCFR_ACM) ? " acm" : "");
+- size -= t;
+- next += t;
+ }
+
+ if (!is_vbus_present() || !dev->driver)
+ goto done;
+
+- t = scnprintf(next, size, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n",
++ seq_printf(m, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n",
+ dev->stats.write.bytes, dev->stats.write.ops,
+ dev->stats.read.bytes, dev->stats.read.ops,
+ dev->stats.irqs);
+- size -= t;
+- next += t;
+
+ /* dump endpoint queues */
+ for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) {
+@@ -1090,55 +1074,57 @@ udc_proc_read(char *page, char **start, off_t off, int count,
+ if (!d)
+ continue;
+ tmp = *dev->ep [i].reg_udccs;
+- t = scnprintf(next, size,
++ seq_printf(m,
+ "%s max %d %s udccs %02x irqs %lu\n",
+ ep->ep.name, le16_to_cpu (d->wMaxPacketSize),
+ "pio", tmp, ep->pio_irqs);
+ /* TODO translate all five groups of udccs bits! */
+
+ } else /* ep0 should only have one transfer queued */
+- t = scnprintf(next, size, "ep0 max 16 pio irqs %lu\n",
++ seq_printf(m, "ep0 max 16 pio irqs %lu\n",
+ ep->pio_irqs);
+- if (t <= 0 || t > size)
+- goto done;
+- size -= t;
+- next += t;
+
+ if (list_empty(&ep->queue)) {
+- t = scnprintf(next, size, "\t(nothing queued)\n");
+- if (t <= 0 || t > size)
+- goto done;
+- size -= t;
+- next += t;
++ seq_printf(m, "\t(nothing queued)\n");
+ continue;
+ }
+ list_for_each_entry(req, &ep->queue, queue) {
+- t = scnprintf(next, size,
++ seq_printf(m,
+ "\treq %p len %d/%d buf %p\n",
+ &req->req, req->req.actual,
+ req->req.length, req->req.buf);
+- if (t <= 0 || t > size)
+- goto done;
+- size -= t;
+- next += t;
+ }
+ }
+
+ done:
+ local_irq_restore(flags);
+- *eof = 1;
+- return count - size;
++ return 0;
+ }
+
+-#define create_proc_files() \
+- create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev)
+-#define remove_proc_files() \
+- remove_proc_entry(proc_node_name, NULL)
++static int
++udc_debugfs_open(struct inode *inode, struct file *file)
++{
++ return single_open(file, udc_seq_show, inode->i_private);
++}
++
++static const struct file_operations debug_fops = {
++ .open = udc_debugfs_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = single_release,
++ .owner = THIS_MODULE,
++};
++
++#define create_debug_files(dev) \
++ dev->debugfs_udc = debugfs_create_file(dev->gadget.name, S_IRUGO, \
++ NULL, dev, &debug_fops)
++#define remove_debug_files(dev) \
++ if (dev->debugfs_udc) debugfs_remove(dev->debugfs_udc)
+
+ #else /* !CONFIG_USB_GADGET_DEBUG_FILES */
+
+-#define create_proc_files() do {} while (0)
+-#define remove_proc_files() do {} while (0)
++#define create_debug_files(dev) do {} while (0)
++#define remove_debug_files(dev) do {} while (0)
+
+ #endif /* CONFIG_USB_GADGET_DEBUG_FILES */
+
+@@ -2245,7 +2231,7 @@ lubbock_fail0:
+ goto err_vbus_irq;
+ }
+ }
+- create_proc_files();
++ create_debug_files(dev);
+
+ return 0;
+
+@@ -2282,7 +2268,7 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev)
+ return -EBUSY;
+
+ udc_disable(dev);
+- remove_proc_files();
++ remove_debug_files(dev);
+
+ if (dev->got_irq) {
+ free_irq(platform_get_irq(pdev, 0), dev);
+diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h
+index 1db46d7..c08b1a2 100644
+--- a/drivers/usb/gadget/pxa2xx_udc.h
++++ b/drivers/usb/gadget/pxa2xx_udc.h
+@@ -129,6 +129,10 @@ struct pxa2xx_udc {
+ struct pxa2xx_udc_mach_info *mach;
+ u64 dma_mask;
+ struct pxa2xx_ep ep [PXA_UDC_NUM_ENDPOINTS];
++
++#ifdef CONFIG_USB_GADGET_DEBUG_FS
++ struct dentry *debugfs_udc;
++#endif
+ };
+
+ /*-------------------------------------------------------------------------*/
+@@ -153,6 +157,8 @@ static struct pxa2xx_udc *the_controller;
+
+ #ifdef DEBUG
+
++static int is_vbus_present(void);
++
+ static const char *state_name[] = {
+ "EP0_IDLE",
+ "EP0_IN_DATA_PHASE", "EP0_OUT_DATA_PHASE",
+@@ -207,8 +213,7 @@ dump_state(struct pxa2xx_udc *dev)
+ unsigned i;
+
+ DMSG("%s %s, uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n",
+- //is_usb_connected() ? "host " : "disconnected",
+- "host ",
++ is_vbus_present() ? "host " : "disconnected",
+ state_name[dev->ep0state],
+ UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL);
+ dump_udccr("udccr");
+@@ -224,7 +230,7 @@ dump_state(struct pxa2xx_udc *dev)
+ } else
+ DMSG("ep0 driver '%s'\n", dev->driver->driver.name);
+
+- //if (!is_usb_connected())
+- // return;
++ if (!is_vbus_present())
++ return;
+
+ dump_udccs0 ("udccs0");
+--
+1.5.3.8
+
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