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Diffstat (limited to 'drivers/usb/gadget/langwell_udc.h')
-rw-r--r--drivers/usb/gadget/langwell_udc.h224
1 files changed, 0 insertions, 224 deletions
diff --git a/drivers/usb/gadget/langwell_udc.h b/drivers/usb/gadget/langwell_udc.h
deleted file mode 100644
index 8c8087abb48..00000000000
--- a/drivers/usb/gadget/langwell_udc.h
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Intel Langwell USB Device Controller driver
- * Copyright (C) 2008-2009, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- */
-
-#include <linux/usb/langwell_udc.h>
-
-/*-------------------------------------------------------------------------*/
-
-/* driver data structures and utilities */
-
-/*
- * dTD: Device Endpoint Transfer Descriptor
- * describe to the device controller the location and quantity of
- * data to be send/received for given transfer
- */
-struct langwell_dtd {
- u32 dtd_next;
-/* bits 31:5, next transfer element pointer */
-#define DTD_NEXT(d) (((d)>>5)&0x7ffffff)
-#define DTD_NEXT_MASK (0x7ffffff << 5)
-/* terminate */
-#define DTD_TERM BIT(0)
- /* bits 7:0, execution back states */
- u32 dtd_status:8;
-#define DTD_STATUS(d) (((d)>>0)&0xff)
-#define DTD_STS_ACTIVE BIT(7) /* active */
-#define DTD_STS_HALTED BIT(6) /* halted */
-#define DTD_STS_DBE BIT(5) /* data buffer error */
-#define DTD_STS_TRE BIT(3) /* transaction error */
- /* bits 9:8 */
- u32 dtd_res0:2;
- /* bits 11:10, multipier override */
- u32 dtd_multo:2;
-#define DTD_MULTO (BIT(11) | BIT(10))
- /* bits 14:12 */
- u32 dtd_res1:3;
- /* bit 15, interrupt on complete */
- u32 dtd_ioc:1;
-#define DTD_IOC BIT(15)
- /* bits 30:16, total bytes */
- u32 dtd_total:15;
-#define DTD_TOTAL(d) (((d)>>16)&0x7fff)
-#define DTD_MAX_TRANSFER_LENGTH 0x4000
- /* bit 31 */
- u32 dtd_res2:1;
- /* dTD buffer pointer page 0 to 4 */
- u32 dtd_buf[5];
-#define DTD_OFFSET_MASK 0xfff
-/* bits 31:12, buffer pointer */
-#define DTD_BUFFER(d) (((d)>>12)&0x3ff)
-/* bits 11:0, current offset */
-#define DTD_C_OFFSET(d) (((d)>>0)&0xfff)
-/* bits 10:0, frame number */
-#define DTD_FRAME(d) (((d)>>0)&0x7ff)
-
- /* driver-private parts */
-
- /* dtd dma address */
- dma_addr_t dtd_dma;
- /* next dtd virtual address */
- struct langwell_dtd *next_dtd_virt;
-};
-
-
-/*
- * dQH: Device Endpoint Queue Head
- * describe where all transfers are managed
- * 48-byte data structure, aligned on 64-byte boundary
- *
- * These are associated with dTD structure
- */
-struct langwell_dqh {
- /* endpoint capabilities and characteristics */
- u32 dqh_res0:15; /* bits 14:0 */
- u32 dqh_ios:1; /* bit 15, interrupt on setup */
-#define DQH_IOS BIT(15)
- u32 dqh_mpl:11; /* bits 26:16, maximum packet length */
-#define DQH_MPL (0x7ff << 16)
- u32 dqh_res1:2; /* bits 28:27 */
- u32 dqh_zlt:1; /* bit 29, zero length termination */
-#define DQH_ZLT BIT(29)
- u32 dqh_mult:2; /* bits 31:30 */
-#define DQH_MULT (BIT(30) | BIT(31))
-
- /* current dTD pointer */
- u32 dqh_current; /* locate the transfer in progress */
-#define DQH_C_DTD(e) \
- (((e)>>5)&0x7ffffff) /* bits 31:5, current dTD pointer */
-
- /* transfer overlay, hardware parts of a struct langwell_dtd */
- u32 dtd_next;
- u32 dtd_status:8; /* bits 7:0, execution back states */
- u32 dtd_res0:2; /* bits 9:8 */
- u32 dtd_multo:2; /* bits 11:10, multipier override */
- u32 dtd_res1:3; /* bits 14:12 */
- u32 dtd_ioc:1; /* bit 15, interrupt on complete */
- u32 dtd_total:15; /* bits 30:16, total bytes */
- u32 dtd_res2:1; /* bit 31 */
- u32 dtd_buf[5]; /* dTD buffer pointer page 0 to 4 */
-
- u32 dqh_res2;
- struct usb_ctrlrequest dqh_setup; /* setup packet buffer */
-} __attribute__ ((aligned(64)));
-
-
-/* endpoint data structure */
-struct langwell_ep {
- struct usb_ep ep;
- dma_addr_t dma;
- struct langwell_udc *dev;
- unsigned long irqs;
- struct list_head queue;
- struct langwell_dqh *dqh;
- const struct usb_endpoint_descriptor *desc;
- char name[14];
- unsigned stopped:1,
- ep_type:2,
- ep_num:8;
-};
-
-
-/* request data structure */
-struct langwell_request {
- struct usb_request req;
- struct langwell_dtd *dtd, *head, *tail;
- struct langwell_ep *ep;
- dma_addr_t dtd_dma;
- struct list_head queue;
- unsigned dtd_count;
- unsigned mapped:1;
-};
-
-
-/* ep0 transfer state */
-enum ep0_state {
- WAIT_FOR_SETUP,
- DATA_STATE_XMIT,
- DATA_STATE_NEED_ZLP,
- WAIT_FOR_OUT_STATUS,
- DATA_STATE_RECV,
-};
-
-
-/* device suspend state */
-enum lpm_state {
- LPM_L0, /* on */
- LPM_L1, /* LPM L1 sleep */
- LPM_L2, /* suspend */
- LPM_L3, /* off */
-};
-
-
-/* device data structure */
-struct langwell_udc {
- /* each pci device provides one gadget, several endpoints */
- struct usb_gadget gadget;
- spinlock_t lock; /* device lock */
- struct langwell_ep *ep;
- struct usb_gadget_driver *driver;
- struct usb_phy *transceiver;
- u8 dev_addr;
- u32 usb_state;
- u32 resume_state;
- u32 bus_reset;
- enum lpm_state lpm_state;
- enum ep0_state ep0_state;
- u32 ep0_dir;
- u16 dciversion;
- unsigned ep_max;
- unsigned devcap:1,
- enabled:1,
- region:1,
- got_irq:1,
- powered:1,
- remote_wakeup:1,
- rate:1,
- is_reset:1,
- softconnected:1,
- vbus_active:1,
- suspended:1,
- stopped:1,
- lpm:1, /* LPM capability */
- has_sram:1, /* SRAM caching */
- got_sram:1;
-
- /* pci state used to access those endpoints */
- struct pci_dev *pdev;
-
- /* Langwell otg transceiver */
- struct langwell_otg *lotg;
-
- /* control registers */
- struct langwell_cap_regs __iomem *cap_regs;
- struct langwell_op_regs __iomem *op_regs;
-
- struct usb_ctrlrequest local_setup_buff;
- struct langwell_dqh *ep_dqh;
- size_t ep_dqh_size;
- dma_addr_t ep_dqh_dma;
-
- /* ep0 status request */
- struct langwell_request *status_req;
-
- /* dma pool */
- struct dma_pool *dtd_pool;
-
- /* make sure release() is done */
- struct completion *done;
-
- /* for private SRAM caching */
- unsigned int sram_addr;
- unsigned int sram_size;
-
- /* device status data for get_status request */
- u16 dev_status;
-};
-
-#define gadget_to_langwell(g) container_of((g), struct langwell_udc, gadget)
-