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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/usb/gadget/udc/s3c2410_udc.h
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/usb/gadget/udc/s3c2410_udc.h')
-rw-r--r--drivers/usb/gadget/udc/s3c2410_udc.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.h b/drivers/usb/gadget/udc/s3c2410_udc.h
new file mode 100644
index 000000000..cdbf202e5
--- /dev/null
+++ b/drivers/usb/gadget/udc/s3c2410_udc.h
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * linux/drivers/usb/gadget/s3c2410_udc.h
+ * Samsung on-chip full speed USB device controllers
+ *
+ * Copyright (C) 2004-2007 Herbert Pƶtzl - Arnaud Patard
+ * Additional cleanups by Ben Dooks <ben-linux@fluff.org>
+ */
+
+#ifndef _S3C2410_UDC_H
+#define _S3C2410_UDC_H
+
+struct s3c2410_ep {
+ struct list_head queue;
+ unsigned long last_io; /* jiffies timestamp */
+ struct usb_gadget *gadget;
+ struct s3c2410_udc *dev;
+ struct usb_ep ep;
+ u8 num;
+
+ unsigned short fifo_size;
+ u8 bEndpointAddress;
+ u8 bmAttributes;
+
+ unsigned halted : 1;
+ unsigned already_seen : 1;
+ unsigned setup_stage : 1;
+};
+
+
+/* Warning : ep0 has a fifo of 16 bytes */
+/* Don't try to set 32 or 64 */
+/* also testusb 14 fails wit 16 but is */
+/* fine with 8 */
+#define EP0_FIFO_SIZE 8
+#define EP_FIFO_SIZE 64
+#define DEFAULT_POWER_STATE 0x00
+
+#define S3C2440_EP_FIFO_SIZE 128
+
+static const char ep0name [] = "ep0";
+
+static const char *const ep_name[] = {
+ ep0name, /* everyone has ep0 */
+ /* s3c2410 four bidirectional bulk endpoints */
+ "ep1-bulk", "ep2-bulk", "ep3-bulk", "ep4-bulk",
+};
+
+#define S3C2410_ENDPOINTS ARRAY_SIZE(ep_name)
+
+struct s3c2410_request {
+ struct list_head queue; /* ep's requests */
+ struct usb_request req;
+};
+
+enum ep0_state {
+ EP0_IDLE,
+ EP0_IN_DATA_PHASE,
+ EP0_OUT_DATA_PHASE,
+ EP0_END_XFER,
+ EP0_STALL,
+};
+
+static const char *ep0states[]= {
+ "EP0_IDLE",
+ "EP0_IN_DATA_PHASE",
+ "EP0_OUT_DATA_PHASE",
+ "EP0_END_XFER",
+ "EP0_STALL",
+};
+
+struct s3c2410_udc {
+ spinlock_t lock;
+
+ struct s3c2410_ep ep[S3C2410_ENDPOINTS];
+ int address;
+ struct usb_gadget gadget;
+ struct usb_gadget_driver *driver;
+ struct s3c2410_request fifo_req;
+ u8 fifo_buf[EP_FIFO_SIZE];
+ u16 devstatus;
+
+ u32 port_status;
+ int ep0state;
+
+ struct gpio_desc *vbus_gpiod;
+ struct gpio_desc *pullup_gpiod;
+
+ unsigned got_irq : 1;
+
+ unsigned req_std : 1;
+ unsigned req_config : 1;
+ unsigned req_pending : 1;
+ u8 vbus;
+ int irq;
+};
+#define to_s3c2410(g) (container_of((g), struct s3c2410_udc, gadget))
+
+#endif