#include <asm/uaccess.h>
#include <linux/usb_ch9.h>
+#include <linux/usb_cdc.h>
#include <linux/usb_gadget.h>
#include "gadget_chips.h"
})
-/* CDC-ACM Defines and Structures */
-
-#define USB_CDC_SUBCLASS_ACM 2
-
-#define USB_CDC_CTRL_PROTO_NONE 0
-#define USB_CDC_CTRL_PROTO_AT 1
-#define USB_CDC_CTRL_PROTO_VENDOR 0xff
-
-#define USB_CDC_SUBTYPE_HEADER 0
-#define USB_CDC_SUBTYPE_CALL_MGMT 1
-#define USB_CDC_SUBTYPE_ACM 2
-#define USB_CDC_SUBTYPE_UNION 6
-
-#define USB_CDC_CALL_MGMT_CAP_CALL_MGMT 0x01
-#define USB_CDC_CALL_MGMT_CAP_DATA_INTF 0x02
-
-#define USB_CDC_REQ_SET_LINE_CODING 0x20
-#define USB_CDC_REQ_GET_LINE_CODING 0x21
-#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
-
-#define USB_CDC_1_STOP_BITS 0
-#define USB_CDC_1_5_STOP_BITS 1
-#define USB_CDC_2_STOP_BITS 2
-
-#define USB_CDC_NO_PARITY 0
-#define USB_CDC_ODD_PARITY 1
-#define USB_CDC_EVEN_PARITY 2
-#define USB_CDC_MARK_PARITY 3
-#define USB_CDC_SPACE_PARITY 4
-
-/* Header Functional Descriptor from CDC spec 5.2.3.1 */
-struct usb_cdc_header_desc {
- u8 bLength;
- u8 bDescriptorType;
- u8 bDescriptorSubType;
- u16 bcdCDC;
-} __attribute__ ((packed));
-
-/* Call Management Descriptor from CDC spec 5.2.3.3 */
-struct usb_cdc_call_mgmt_desc {
- u8 bLength;
- u8 bDescriptorType;
- u8 bDescriptorSubType;
- u8 bmCapabilities;
- u8 bDataInterface;
-} __attribute__ ((packed));
-
-/* Abstract Control Management Descriptor from CDC spec 5.2.3.4 */
-struct usb_cdc_acm_desc {
- u8 bLength;
- u8 bDescriptorType;
- u8 bDescriptorSubType;
- u8 bmCapabilities;
-} __attribute__ ((packed));
-
-/* Union Functional Descriptor from CDC spec 5.2.3.8 */
-struct usb_cdc_union_desc {
- u8 bLength;
- u8 bDescriptorType;
- u8 bDescriptorSubType;
- u8 bMasterInterface0;
- u8 bSlaveInterface0;
- /* ... and there could be other slave interfaces */
-} __attribute__ ((packed));
-
-/* Line Coding Structure from CDC spec 6.2.13 */
-struct usb_cdc_line_coding {
- u32 dwDTERate;
- u8 bCharFormat;
- u8 bParityType;
- u8 bDataBits;
-} __attribute__ ((packed));
-
-
/* Defines */
#define GS_VERSION_STR "v2.0"
struct usb_ep *dev_notify_ep; /* address of notify endpoint */
struct usb_ep *dev_in_ep; /* address of in endpoint */
struct usb_ep *dev_out_ep; /* address of out endpoint */
- struct usb_endpoint_descriptor /* desciptor of notify ep */
+ struct usb_endpoint_descriptor /* descriptor of notify ep */
*dev_notify_ep_desc;
struct usb_endpoint_descriptor /* descriptor of in endpoint */
*dev_in_ep_desc;
u8 type, unsigned int index, int is_otg);
static struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned int len,
- int kmalloc_flags);
+ gfp_t kmalloc_flags);
static void gs_free_req(struct usb_ep *ep, struct usb_request *req);
static struct gs_req_entry *gs_alloc_req_entry(struct usb_ep *ep, unsigned len,
- int kmalloc_flags);
+ gfp_t kmalloc_flags);
static void gs_free_req_entry(struct usb_ep *ep, struct gs_req_entry *req);
-static int gs_alloc_ports(struct gs_dev *dev, int kmalloc_flags);
+static int gs_alloc_ports(struct gs_dev *dev, gfp_t kmalloc_flags);
static void gs_free_ports(struct gs_dev *dev);
/* circular buffer */
-static struct gs_buf *gs_buf_alloc(unsigned int size, int kmalloc_flags);
+static struct gs_buf *gs_buf_alloc(unsigned int size, gfp_t kmalloc_flags);
static void gs_buf_free(struct gs_buf *gb);
static void gs_buf_clear(struct gs_buf *gb);
static unsigned int gs_buf_data_avail(struct gs_buf *gb);
#endif /* CONFIG_USB_GADGET_DUALSPEED */
.function = GS_LONG_NAME,
.bind = gs_bind,
- .unbind = gs_unbind,
+ .unbind = __exit_p(gs_unbind),
.setup = gs_setup,
.disconnect = gs_disconnect,
.driver = {
.name = GS_SHORT_NAME,
- /* .shutdown = ... */
- /* .suspend = ... */
- /* .resume = ... */
},
};
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_COMM,
.bInterfaceSubClass = USB_CDC_SUBCLASS_ACM,
- .bInterfaceProtocol = USB_CDC_CTRL_PROTO_AT,
+ .bInterfaceProtocol = USB_CDC_ACM_PROTO_AT_V25TER,
.iInterface = GS_CONTROL_STR_ID,
};
static const struct usb_cdc_header_desc gs_header_desc = {
.bLength = sizeof(gs_header_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = USB_CDC_SUBTYPE_HEADER,
+ .bDescriptorSubType = USB_CDC_HEADER_TYPE,
.bcdCDC = __constant_cpu_to_le16(0x0110),
};
-static const struct usb_cdc_call_mgmt_desc gs_call_mgmt_descriptor = {
+static const struct usb_cdc_call_mgmt_descriptor gs_call_mgmt_descriptor = {
.bLength = sizeof(gs_call_mgmt_descriptor),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = USB_CDC_SUBTYPE_CALL_MGMT,
+ .bDescriptorSubType = USB_CDC_CALL_MANAGEMENT_TYPE,
.bmCapabilities = 0,
.bDataInterface = 1, /* index of data interface */
};
-static struct usb_cdc_acm_desc gs_acm_descriptor = {
+static struct usb_cdc_acm_descriptor gs_acm_descriptor = {
.bLength = sizeof(gs_acm_descriptor),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = USB_CDC_SUBTYPE_ACM,
+ .bDescriptorSubType = USB_CDC_ACM_TYPE,
.bmCapabilities = 0,
};
static const struct usb_cdc_union_desc gs_union_desc = {
.bLength = sizeof(gs_union_desc),
.bDescriptorType = USB_DT_CS_INTERFACE,
- .bDescriptorSubType = USB_CDC_SUBTYPE_UNION,
+ .bDescriptorSubType = USB_CDC_UNION_TYPE,
.bMasterInterface0 = 0, /* index of control interface */
.bSlaveInterface0 = 1, /* index of data interface */
};
/* wait for write buffer to drain, or */
/* at most GS_CLOSE_TIMEOUT seconds */
if (gs_buf_data_avail(port->port_write_buf) > 0) {
+ spin_unlock_irqrestore(&port->port_lock, flags);
wait_cond_interruptible_timeout(port->port_write_wait,
port->port_dev == NULL
|| gs_buf_data_avail(port->port_write_buf) == 0,
&port->port_lock, flags, GS_CLOSE_TIMEOUT * HZ);
+ spin_lock_irqsave(&port->port_lock, flags);
}
/* free disconnected port on final close */
unsigned int len;
struct gs_port *port;
int ret;
+ struct tty_struct *tty;
/* TEMPORARY -- only port 0 is supported right now */
port = dev->dev_port[0];
goto exit;
}
- if (port->port_tty == NULL) {
+
+ tty = port->port_tty;
+
+ if (tty == NULL) {
printk(KERN_ERR "gs_recv_packet: port=%d, NULL tty pointer\n",
port->port_num);
ret = -EIO;
goto exit;
}
- len = (unsigned int)(TTY_FLIPBUF_SIZE - port->port_tty->flip.count);
- if (len < size)
- size = len;
-
- if (size > 0) {
- memcpy(port->port_tty->flip.char_buf_ptr, packet, size);
- port->port_tty->flip.char_buf_ptr += size;
- port->port_tty->flip.count += size;
+ len = tty_buffer_request_room(tty, size);
+ if (len > 0) {
+ tty_insert_flip_string(tty, packet, len);
tty_flip_buffer_push(port->port_tty);
wake_up_interruptible(&port->port_tty->read_wait);
}
-
ret = 0;
-
exit:
spin_unlock(&port->port_lock);
return ret;
* Called on module load. Allocates and initializes the device
* structure and a control request.
*/
-static int gs_bind(struct usb_gadget *gadget)
+static int __init gs_bind(struct usb_gadget *gadget)
{
int ret;
struct usb_ep *ep;
struct gs_dev *dev;
+ int gcnum;
- /* device specific */
- if (gadget_is_net2280(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0001);
- } else if (gadget_is_pxa(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0002);
- } else if (gadget_is_sh(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0003);
- /* sh doesn't support multiple interfaces or configs */
- use_acm = 0;
- } else if (gadget_is_sa1100(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0004);
- /* sa1100 doesn't support necessary endpoints */
+ /* Some controllers can't support CDC ACM:
+ * - sh doesn't support multiple interfaces or configs;
+ * - sa1100 doesn't have a third interrupt endpoint
+ */
+ if (gadget_is_sh(gadget) || gadget_is_sa1100(gadget))
use_acm = 0;
- } else if (gadget_is_goku(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0005);
- } else if (gadget_is_mq11xx(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0006);
- } else if (gadget_is_omap(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0007);
- } else if (gadget_is_lh7a40x(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0008);
- } else if (gadget_is_n9604(gadget)) {
- gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0009);
- } else if (gadget_is_pxa27x(gadget)) {
+
+ gcnum = usb_gadget_controller_number(gadget);
+ if (gcnum >= 0)
gs_device_desc.bcdDevice =
- __constant_cpu_to_le16(GS_VERSION_NUM|0x0011);
- } else {
+ cpu_to_le16(GS_VERSION_NUM | gcnum);
+ else {
printk(KERN_WARNING "gs_bind: controller '%s' not recognized\n",
gadget->name);
/* unrecognized, but safe unless bulk is REALLY quirky */
* Called on module unload. Frees the control request and device
* structure.
*/
-static void gs_unbind(struct usb_gadget *gadget)
+static void __exit gs_unbind(struct usb_gadget *gadget)
{
struct gs_dev *dev = get_gadget_data(gadget);
int ret = -EOPNOTSUPP;
struct gs_dev *dev = get_gadget_data(gadget);
struct usb_request *req = dev->dev_ctrl_req;
+ u16 wIndex = le16_to_cpu(ctrl->wIndex);
+ u16 wValue = le16_to_cpu(ctrl->wValue);
+ u16 wLength = le16_to_cpu(ctrl->wLength);
switch (ctrl->bRequestType & USB_TYPE_MASK) {
case USB_TYPE_STANDARD:
default:
printk(KERN_ERR "gs_setup: unknown request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
- ctrl->bRequestType, ctrl->bRequest, ctrl->wValue,
- ctrl->wIndex, ctrl->wLength);
+ ctrl->bRequestType, ctrl->bRequest,
+ wValue, wIndex, wLength);
break;
}
/* respond with data transfer before status phase? */
if (ret >= 0) {
req->length = ret;
- req->zero = ret < ctrl->wLength
+ req->zero = ret < wLength
&& (ret % gadget->ep0->maxpacket) == 0;
ret = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC);
if (ret < 0) {
int ret = -EOPNOTSUPP;
struct gs_dev *dev = get_gadget_data(gadget);
struct usb_request *req = dev->dev_ctrl_req;
+ u16 wIndex = le16_to_cpu(ctrl->wIndex);
+ u16 wValue = le16_to_cpu(ctrl->wValue);
+ u16 wLength = le16_to_cpu(ctrl->wLength);
switch (ctrl->bRequest) {
case USB_REQ_GET_DESCRIPTOR:
if (ctrl->bRequestType != USB_DIR_IN)
break;
- switch (ctrl->wValue >> 8) {
+ switch (wValue >> 8) {
case USB_DT_DEVICE:
- ret = min(ctrl->wLength,
+ ret = min(wLength,
(u16)sizeof(struct usb_device_descriptor));
memcpy(req->buf, &gs_device_desc, ret);
break;
case USB_DT_DEVICE_QUALIFIER:
if (!gadget->is_dualspeed)
break;
- ret = min(ctrl->wLength,
+ ret = min(wLength,
(u16)sizeof(struct usb_qualifier_descriptor));
memcpy(req->buf, &gs_qualifier_desc, ret);
break;
#endif /* CONFIG_USB_GADGET_DUALSPEED */
case USB_DT_CONFIG:
ret = gs_build_config_buf(req->buf, gadget->speed,
- ctrl->wValue >> 8, ctrl->wValue & 0xff,
+ wValue >> 8, wValue & 0xff,
gadget->is_otg);
if (ret >= 0)
- ret = min(ctrl->wLength, (u16)ret);
+ ret = min(wLength, (u16)ret);
break;
case USB_DT_STRING:
/* wIndex == language code. */
ret = usb_gadget_get_string(&gs_string_table,
- ctrl->wValue & 0xff, req->buf);
+ wValue & 0xff, req->buf);
if (ret >= 0)
- ret = min(ctrl->wLength, (u16)ret);
+ ret = min(wLength, (u16)ret);
break;
}
break;
if (ctrl->bRequestType != 0)
break;
spin_lock(&dev->dev_lock);
- ret = gs_set_config(dev, ctrl->wValue);
+ ret = gs_set_config(dev, wValue);
spin_unlock(&dev->dev_lock);
break;
if (ctrl->bRequestType != USB_DIR_IN)
break;
*(u8 *)req->buf = dev->dev_config;
- ret = min(ctrl->wLength, (u16)1);
+ ret = min(wLength, (u16)1);
break;
case USB_REQ_SET_INTERFACE:
if (ctrl->bRequestType != USB_RECIP_INTERFACE
- || !dev->dev_config || ctrl->wIndex >= GS_MAX_NUM_INTERFACES)
+ || !dev->dev_config
+ || wIndex >= GS_MAX_NUM_INTERFACES)
break;
if (dev->dev_config == GS_BULK_CONFIG_ID
- && ctrl->wIndex != GS_BULK_INTERFACE_ID)
+ && wIndex != GS_BULK_INTERFACE_ID)
break;
/* no alternate interface settings */
- if (ctrl->wValue != 0)
+ if (wValue != 0)
break;
spin_lock(&dev->dev_lock);
/* PXA hardware partially handles SET_INTERFACE;
goto set_interface_done;
}
if (dev->dev_config != GS_BULK_CONFIG_ID
- && ctrl->wIndex == GS_CONTROL_INTERFACE_ID) {
+ && wIndex == GS_CONTROL_INTERFACE_ID) {
if (dev->dev_notify_ep) {
usb_ep_disable(dev->dev_notify_ep);
usb_ep_enable(dev->dev_notify_ep, dev->dev_notify_ep_desc);
if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)
|| dev->dev_config == GS_NO_CONFIG_ID)
break;
- if (ctrl->wIndex >= GS_MAX_NUM_INTERFACES
- || (dev->dev_config == GS_BULK_CONFIG_ID
- && ctrl->wIndex != GS_BULK_INTERFACE_ID)) {
+ if (wIndex >= GS_MAX_NUM_INTERFACES
+ || (dev->dev_config == GS_BULK_CONFIG_ID
+ && wIndex != GS_BULK_INTERFACE_ID)) {
ret = -EDOM;
break;
}
/* no alternate interface settings */
*(u8 *)req->buf = 0;
- ret = min(ctrl->wLength, (u16)1);
+ ret = min(wLength, (u16)1);
break;
default:
printk(KERN_ERR "gs_setup: unknown standard request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
- ctrl->bRequestType, ctrl->bRequest, ctrl->wValue,
- ctrl->wIndex, ctrl->wLength);
+ ctrl->bRequestType, ctrl->bRequest,
+ wValue, wIndex, wLength);
break;
}
struct gs_dev *dev = get_gadget_data(gadget);
struct gs_port *port = dev->dev_port[0]; /* ACM only has one port */
struct usb_request *req = dev->dev_ctrl_req;
+ u16 wIndex = le16_to_cpu(ctrl->wIndex);
+ u16 wValue = le16_to_cpu(ctrl->wValue);
+ u16 wLength = le16_to_cpu(ctrl->wLength);
switch (ctrl->bRequest) {
case USB_CDC_REQ_SET_LINE_CODING:
- ret = min(ctrl->wLength,
+ ret = min(wLength,
(u16)sizeof(struct usb_cdc_line_coding));
if (port) {
spin_lock(&port->port_lock);
case USB_CDC_REQ_GET_LINE_CODING:
port = dev->dev_port[0]; /* ACM only has one port */
- ret = min(ctrl->wLength,
+ ret = min(wLength,
(u16)sizeof(struct usb_cdc_line_coding));
if (port) {
spin_lock(&port->port_lock);
default:
printk(KERN_ERR "gs_setup: unknown class request, type=%02x, request=%02x, value=%04x, index=%04x, length=%d\n",
- ctrl->bRequestType, ctrl->bRequest, ctrl->wValue,
- ctrl->wIndex, ctrl->wLength);
+ ctrl->bRequestType, ctrl->bRequest,
+ wValue, wIndex, wLength);
break;
}
* Allocate a usb_request and its buffer. Returns a pointer to the
* usb_request or NULL if there is an error.
*/
-static struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned int len, int kmalloc_flags)
+static struct usb_request *
+gs_alloc_req(struct usb_ep *ep, unsigned int len, gfp_t kmalloc_flags)
{
struct usb_request *req;
* Allocates a request and its buffer, using the given
* endpoint, buffer len, and kmalloc flags.
*/
-static struct gs_req_entry *gs_alloc_req_entry(struct usb_ep *ep, unsigned len, int kmalloc_flags)
+static struct gs_req_entry *
+gs_alloc_req_entry(struct usb_ep *ep, unsigned len, gfp_t kmalloc_flags)
{
struct gs_req_entry *req;
*
* The device lock is normally held when calling this function.
*/
-static int gs_alloc_ports(struct gs_dev *dev, int kmalloc_flags)
+static int gs_alloc_ports(struct gs_dev *dev, gfp_t kmalloc_flags)
{
int i;
struct gs_port *port;
return -EIO;
for (i=0; i<GS_NUM_PORTS; i++) {
- if ((port=(struct gs_port *)kmalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL)
+ if ((port=kzalloc(sizeof(struct gs_port), kmalloc_flags)) == NULL)
return -ENOMEM;
- memset(port, 0, sizeof(struct gs_port));
port->port_dev = dev;
port->port_num = i;
- port->port_line_coding.dwDTERate = GS_DEFAULT_DTE_RATE;
+ port->port_line_coding.dwDTERate = cpu_to_le32(GS_DEFAULT_DTE_RATE);
port->port_line_coding.bCharFormat = GS_DEFAULT_CHAR_FORMAT;
port->port_line_coding.bParityType = GS_DEFAULT_PARITY;
port->port_line_coding.bDataBits = GS_DEFAULT_DATA_BITS;
}
spin_unlock_irqrestore(&port->port_lock, flags);
} else {
+ spin_unlock_irqrestore(&port->port_lock, flags);
kfree(port);
}
*
* Allocate a circular buffer and all associated memory.
*/
-static struct gs_buf *gs_buf_alloc(unsigned int size, int kmalloc_flags)
+static struct gs_buf *gs_buf_alloc(unsigned int size, gfp_t kmalloc_flags)
{
struct gs_buf *gb;
*/
void gs_buf_free(struct gs_buf *gb)
{
- if (gb != NULL) {
- if (gb->buf_buf != NULL)
- kfree(gb->buf_buf);
+ if (gb) {
+ kfree(gb->buf_buf);
kfree(gb);
}
}
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