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-rw-r--r--drivers/usb/gadget/Kconfig1
-rw-r--r--drivers/usb/gadget/ether.c9
-rw-r--r--drivers/usb/gadget/fsl_udc_core.c2
-rw-r--r--drivers/usb/gadget/imx_udc.c8
-rw-r--r--drivers/usb/gadget/r8a66597-udc.h105
5 files changed, 70 insertions, 55 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 33351312327f..a18e3c5dd82e 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -223,6 +223,7 @@ config USB_OTG
config USB_GADGET_PXA25X
boolean "PXA 25x or IXP 4xx"
depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX
+ select USB_OTG_UTILS
help
Intel's PXA 25x series XScale ARM-5TE processors include
an integrated full speed USB 1.1 device controller. The
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index f37de283d0ab..167cb2a8ecef 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -61,11 +61,6 @@
* simpler, Microsoft pushes their own approach: RNDIS. The published
* RNDIS specs are ambiguous and appear to be incomplete, and are also
* needlessly complex. They borrow more from CDC ACM than CDC ECM.
- *
- * While CDC ECM, CDC Subset, and RNDIS are designed to extend the ethernet
- * interface to the target, CDC EEM was designed to use ethernet over the USB
- * link between the host and target. CDC EEM is implemented as an alternative
- * to those other protocols when that communication model is more appropriate
*/
#define DRIVER_DESC "Ethernet Gadget"
@@ -157,8 +152,8 @@ static inline bool has_rndis(void)
#define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */
/* For EEM gadgets */
-#define EEM_VENDOR_NUM 0x0525 /* INVALID - NEEDS TO BE ALLOCATED */
-#define EEM_PRODUCT_NUM 0xa4a1 /* INVALID - NEEDS TO BE ALLOCATED */
+#define EEM_VENDOR_NUM 0x1d6b /* Linux Foundation */
+#define EEM_PRODUCT_NUM 0x0102 /* EEM Gadget */
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index 42a74b8a0bb8..fa3d142ba64d 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -2139,7 +2139,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count,
static void fsl_udc_release(struct device *dev)
{
complete(udc_controller->done);
- dma_free_coherent(dev, udc_controller->ep_qh_size,
+ dma_free_coherent(dev->parent, udc_controller->ep_qh_size,
udc_controller->ep_qh, udc_controller->ep_qh_dma);
kfree(udc_controller);
}
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index c52a681f376c..01ee0b9bc957 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1402,7 +1402,8 @@ static int __init imx_udc_probe(struct platform_device *pdev)
struct clk *clk;
void __iomem *base;
int ret = 0;
- int i, res_size;
+ int i;
+ resource_size_t res_size;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
@@ -1416,7 +1417,7 @@ static int __init imx_udc_probe(struct platform_device *pdev)
return -ENODEV;
}
- res_size = res->end - res->start + 1;
+ res_size = resource_size(res);
if (!request_mem_region(res->start, res_size, res->name)) {
dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n",
res_size, res->start);
@@ -1527,8 +1528,7 @@ static int __exit imx_udc_remove(struct platform_device *pdev)
clk_disable(imx_usb->clk);
iounmap(imx_usb->base);
- release_mem_region(imx_usb->res->start,
- imx_usb->res->end - imx_usb->res->start + 1);
+ release_mem_region(imx_usb->res->start, resource_size(imx_usb->res));
if (pdata->exit)
pdata->exit(&pdev->dev);
diff --git a/drivers/usb/gadget/r8a66597-udc.h b/drivers/usb/gadget/r8a66597-udc.h
index 03087e7b9190..9a537aa07968 100644
--- a/drivers/usb/gadget/r8a66597-udc.h
+++ b/drivers/usb/gadget/r8a66597-udc.h
@@ -131,31 +131,48 @@ static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset)
}
static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597,
- unsigned long offset, u16 *buf,
+ unsigned long offset,
+ unsigned char *buf,
int len)
{
+ unsigned long fifoaddr = r8a66597->reg + offset;
+ unsigned int data;
+ int i;
+
if (r8a66597->pdata->on_chip) {
- unsigned long fifoaddr = r8a66597->reg + offset;
- unsigned long count;
- union {
- unsigned long dword;
- unsigned char byte[4];
- } data;
- unsigned char *pb;
- int i;
-
- count = len / 4;
- insl(fifoaddr, buf, count);
-
- if (len & 0x00000003) {
- data.dword = inl(fifoaddr);
- pb = (unsigned char *)buf + count * 4;
- for (i = 0; i < (len & 0x00000003); i++)
- pb[i] = data.byte[i];
+ /* 32-bit accesses for on_chip controllers */
+
+ /* aligned buf case */
+ if (len >= 4 && !((unsigned long)buf & 0x03)) {
+ insl(fifoaddr, buf, len / 4);
+ buf += len & ~0x03;
+ len &= 0x03;
+ }
+
+ /* unaligned buf case */
+ for (i = 0; i < len; i++) {
+ if (!(i & 0x03))
+ data = inl(fifoaddr);
+
+ buf[i] = (data >> ((i & 0x03) * 8)) & 0xff;
}
} else {
- len = (len + 1) / 2;
- insw(r8a66597->reg + offset, buf, len);
+ /* 16-bit accesses for external controllers */
+
+ /* aligned buf case */
+ if (len >= 2 && !((unsigned long)buf & 0x01)) {
+ insw(fifoaddr, buf, len / 2);
+ buf += len & ~0x01;
+ len &= 0x01;
+ }
+
+ /* unaligned buf case */
+ for (i = 0; i < len; i++) {
+ if (!(i & 0x01))
+ data = inw(fifoaddr);
+
+ buf[i] = (data >> ((i & 0x01) * 8)) & 0xff;
+ }
}
}
@@ -166,38 +183,40 @@ static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
}
static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
- unsigned long offset, u16 *buf,
+ unsigned long offset,
+ unsigned char *buf,
int len)
{
unsigned long fifoaddr = r8a66597->reg + offset;
+ int adj = 0;
+ int i;
if (r8a66597->pdata->on_chip) {
- unsigned long count;
- unsigned char *pb;
- int i;
-
- count = len / 4;
- outsl(fifoaddr, buf, count);
-
- if (len & 0x00000003) {
- pb = (unsigned char *)buf + count * 4;
- for (i = 0; i < (len & 0x00000003); i++) {
- if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)
- outb(pb[i], fifoaddr + i);
- else
- outb(pb[i], fifoaddr + 3 - i);
- }
+ /* 32-bit access only if buf is 32-bit aligned */
+ if (len >= 4 && !((unsigned long)buf & 0x03)) {
+ outsl(fifoaddr, buf, len / 4);
+ buf += len & ~0x03;
+ len &= 0x03;
}
} else {
- int odd = len & 0x0001;
-
- len = len / 2;
- outsw(fifoaddr, buf, len);
- if (unlikely(odd)) {
- buf = &buf[len];
- outb((unsigned char)*buf, fifoaddr);
+ /* 16-bit access only if buf is 16-bit aligned */
+ if (len >= 2 && !((unsigned long)buf & 0x01)) {
+ outsw(fifoaddr, buf, len / 2);
+ buf += len & ~0x01;
+ len &= 0x01;
}
}
+
+ /* adjust fifo address in the little endian case */
+ if (!(r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)) {
+ if (r8a66597->pdata->on_chip)
+ adj = 0x03; /* 32-bit wide */
+ else
+ adj = 0x01; /* 16-bit wide */
+ }
+
+ for (i = 0; i < len; i++)
+ outb(buf[i], fifoaddr + adj - (i & adj));
}
static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.