--- /dev/null
+/*
+ * PLX NET2272 high/full speed USB device controller
+ *
+ * Copyright (C) 2005-2006 PLX Technology, Inc.
+ * Copyright (C) 2006-2011 Analog Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __NET2272_H__
+#define __NET2272_H__
+
+/* Main Registers */
+#define REGADDRPTR 0x00
+#define REGDATA 0x01
+#define IRQSTAT0 0x02
+#define ENDPOINT_0_INTERRUPT 0
+#define ENDPOINT_A_INTERRUPT 1
+#define ENDPOINT_B_INTERRUPT 2
+#define ENDPOINT_C_INTERRUPT 3
+#define VIRTUALIZED_ENDPOINT_INTERRUPT 4
+#define SETUP_PACKET_INTERRUPT 5
+#define DMA_DONE_INTERRUPT 6
+#define SOF_INTERRUPT 7
+#define IRQSTAT1 0x03
+#define CONTROL_STATUS_INTERRUPT 1
+#define VBUS_INTERRUPT 2
+#define SUSPEND_REQUEST_INTERRUPT 3
+#define SUSPEND_REQUEST_CHANGE_INTERRUPT 4
+#define RESUME_INTERRUPT 5
+#define ROOT_PORT_RESET_INTERRUPT 6
+#define RESET_STATUS 7
+#define PAGESEL 0x04
+#define DMAREQ 0x1c
+#define DMA_ENDPOINT_SELECT 0
+#define DREQ_POLARITY 1
+#define DACK_POLARITY 2
+#define EOT_POLARITY 3
+#define DMA_CONTROL_DACK 4
+#define DMA_REQUEST_ENABLE 5
+#define DMA_REQUEST 6
+#define DMA_BUFFER_VALID 7
+#define SCRATCH 0x1d
+#define IRQENB0 0x20
+#define ENDPOINT_0_INTERRUPT_ENABLE 0
+#define ENDPOINT_A_INTERRUPT_ENABLE 1
+#define ENDPOINT_B_INTERRUPT_ENABLE 2
+#define ENDPOINT_C_INTERRUPT_ENABLE 3
+#define VIRTUALIZED_ENDPOINT_INTERRUPT_ENABLE 4
+#define SETUP_PACKET_INTERRUPT_ENABLE 5
+#define DMA_DONE_INTERRUPT_ENABLE 6
+#define SOF_INTERRUPT_ENABLE 7
+#define IRQENB1 0x21
+#define VBUS_INTERRUPT_ENABLE 2
+#define SUSPEND_REQUEST_INTERRUPT_ENABLE 3
+#define SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE 4
+#define RESUME_INTERRUPT_ENABLE 5
+#define ROOT_PORT_RESET_INTERRUPT_ENABLE 6
+#define LOCCTL 0x22
+#define DATA_WIDTH 0
+#define LOCAL_CLOCK_OUTPUT 1
+#define LOCAL_CLOCK_OUTPUT_OFF 0
+#define LOCAL_CLOCK_OUTPUT_3_75MHZ 1
+#define LOCAL_CLOCK_OUTPUT_7_5MHZ 2
+#define LOCAL_CLOCK_OUTPUT_15MHZ 3
+#define LOCAL_CLOCK_OUTPUT_30MHZ 4
+#define LOCAL_CLOCK_OUTPUT_60MHZ 5
+#define DMA_SPLIT_BUS_MODE 4
+#define BYTE_SWAP 5
+#define BUFFER_CONFIGURATION 6
+#define BUFFER_CONFIGURATION_EPA512_EPB512 0
+#define BUFFER_CONFIGURATION_EPA1024_EPB512 1
+#define BUFFER_CONFIGURATION_EPA1024_EPB1024 2
+#define BUFFER_CONFIGURATION_EPA1024DB 3
+#define CHIPREV_LEGACY 0x23
+#define NET2270_LEGACY_REV 0x40
+#define LOCCTL1 0x24
+#define DMA_MODE 0
+#define SLOW_DREQ 0
+#define FAST_DREQ 1
+#define BURST_MODE 2
+#define DMA_DACK_ENABLE 2
+#define CHIPREV_2272 0x25
+#define CHIPREV_NET2272_R1 0x10
+#define CHIPREV_NET2272_R1A 0x11
+/* USB Registers */
+#define USBCTL0 0x18
+#define IO_WAKEUP_ENABLE 1
+#define USB_DETECT_ENABLE 3
+#define USB_ROOT_PORT_WAKEUP_ENABLE 5
+#define USBCTL1 0x19
+#define VBUS_PIN 0
+#define USB_FULL_SPEED 1
+#define USB_HIGH_SPEED 2
+#define GENERATE_RESUME 3
+#define VIRTUAL_ENDPOINT_ENABLE 4
+#define FRAME0 0x1a
+#define FRAME1 0x1b
+#define OURADDR 0x30
+#define FORCE_IMMEDIATE 7
+#define USBDIAG 0x31
+#define FORCE_TRANSMIT_CRC_ERROR 0
+#define PREVENT_TRANSMIT_BIT_STUFF 1
+#define FORCE_RECEIVE_ERROR 2
+#define FAST_TIMES 4
+#define USBTEST 0x32
+#define TEST_MODE_SELECT 0
+#define NORMAL_OPERATION 0
+#define TEST_J 1
+#define TEST_K 2
+#define TEST_SE0_NAK 3
+#define TEST_PACKET 4
+#define TEST_FORCE_ENABLE 5
+#define XCVRDIAG 0x33
+#define FORCE_FULL_SPEED 2
+#define FORCE_HIGH_SPEED 3
+#define OPMODE 4
+#define NORMAL_OPERATION 0
+#define NON_DRIVING 1
+#define DISABLE_BITSTUFF_AND_NRZI_ENCODE 2
+#define LINESTATE 6
+#define SE0_STATE 0
+#define J_STATE 1
+#define K_STATE 2
+#define SE1_STATE 3
+#define VIRTOUT0 0x34
+#define VIRTOUT1 0x35
+#define VIRTIN0 0x36
+#define VIRTIN1 0x37
+#define SETUP0 0x40
+#define SETUP1 0x41
+#define SETUP2 0x42
+#define SETUP3 0x43
+#define SETUP4 0x44
+#define SETUP5 0x45
+#define SETUP6 0x46
+#define SETUP7 0x47
+/* Endpoint Registers (Paged via PAGESEL) */
+#define EP_DATA 0x05
+#define EP_STAT0 0x06
+#define DATA_IN_TOKEN_INTERRUPT 0
+#define DATA_OUT_TOKEN_INTERRUPT 1
+#define DATA_PACKET_TRANSMITTED_INTERRUPT 2
+#define DATA_PACKET_RECEIVED_INTERRUPT 3
+#define SHORT_PACKET_TRANSFERRED_INTERRUPT 4
+#define NAK_OUT_PACKETS 5
+#define BUFFER_EMPTY 6
+#define BUFFER_FULL 7
+#define EP_STAT1 0x07
+#define TIMEOUT 0
+#define USB_OUT_ACK_SENT 1
+#define USB_OUT_NAK_SENT 2
+#define USB_IN_ACK_RCVD 3
+#define USB_IN_NAK_SENT 4
+#define USB_STALL_SENT 5
+#define LOCAL_OUT_ZLP 6
+#define BUFFER_FLUSH 7
+#define EP_TRANSFER0 0x08
+#define EP_TRANSFER1 0x09
+#define EP_TRANSFER2 0x0a
+#define EP_IRQENB 0x0b
+#define DATA_IN_TOKEN_INTERRUPT_ENABLE 0
+#define DATA_OUT_TOKEN_INTERRUPT_ENABLE 1
+#define DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE 2
+#define DATA_PACKET_RECEIVED_INTERRUPT_ENABLE 3
+#define SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE 4
+#define EP_AVAIL0 0x0c
+#define EP_AVAIL1 0x0d
+#define EP_RSPCLR 0x0e
+#define EP_RSPSET 0x0f
+#define ENDPOINT_HALT 0
+#define ENDPOINT_TOGGLE 1
+#define NAK_OUT_PACKETS_MODE 2
+#define CONTROL_STATUS_PHASE_HANDSHAKE 3
+#define INTERRUPT_MODE 4
+#define AUTOVALIDATE 5
+#define HIDE_STATUS_PHASE 6
+#define ALT_NAK_OUT_PACKETS 7
+#define EP_MAXPKT0 0x28
+#define EP_MAXPKT1 0x29
+#define ADDITIONAL_TRANSACTION_OPPORTUNITIES 3
+#define NONE_ADDITIONAL_TRANSACTION 0
+#define ONE_ADDITIONAL_TRANSACTION 1
+#define TWO_ADDITIONAL_TRANSACTION 2
+#define EP_CFG 0x2a
+#define ENDPOINT_NUMBER 0
+#define ENDPOINT_DIRECTION 4
+#define ENDPOINT_TYPE 5
+#define ENDPOINT_ENABLE 7
+#define EP_HBW 0x2b
+#define HIGH_BANDWIDTH_OUT_TRANSACTION_PID 0
+#define DATA0_PID 0
+#define DATA1_PID 1
+#define DATA2_PID 2
+#define MDATA_PID 3
+#define EP_BUFF_STATES 0x2c
+#define BUFFER_A_STATE 0
+#define BUFFER_B_STATE 2
+#define BUFF_FREE 0
+#define BUFF_VALID 1
+#define BUFF_LCL 2
+#define BUFF_USB 3
+
+/*---------------------------------------------------------------------------*/
+
+#define PCI_DEVICE_ID_RDK1 0x9054
+
+/* PCI-RDK EPLD Registers */
+#define RDK_EPLD_IO_REGISTER1 0x00000000
+#define RDK_EPLD_USB_RESET 0
+#define RDK_EPLD_USB_POWERDOWN 1
+#define RDK_EPLD_USB_WAKEUP 2
+#define RDK_EPLD_USB_EOT 3
+#define RDK_EPLD_DPPULL 4
+#define RDK_EPLD_IO_REGISTER2 0x00000004
+#define RDK_EPLD_BUSWIDTH 0
+#define RDK_EPLD_USER 2
+#define RDK_EPLD_RESET_INTERRUPT_ENABLE 3
+#define RDK_EPLD_DMA_TIMEOUT_ENABLE 4
+#define RDK_EPLD_STATUS_REGISTER 0x00000008
+#define RDK_EPLD_USB_LRESET 0
+#define RDK_EPLD_REVISION_REGISTER 0x0000000c
+
+/* PCI-RDK PLX 9054 Registers */
+#define INTCSR 0x68
+#define PCI_INTERRUPT_ENABLE 8
+#define LOCAL_INTERRUPT_INPUT_ENABLE 11
+#define LOCAL_INPUT_INTERRUPT_ACTIVE 15
+#define LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE 18
+#define LOCAL_DMA_CHANNEL_1_INTERRUPT_ENABLE 19
+#define DMA_CHANNEL_0_INTERRUPT_ACTIVE 21
+#define DMA_CHANNEL_1_INTERRUPT_ACTIVE 22
+#define CNTRL 0x6C
+#define RELOAD_CONFIGURATION_REGISTERS 29
+#define PCI_ADAPTER_SOFTWARE_RESET 30
+#define DMAMODE0 0x80
+#define LOCAL_BUS_WIDTH 0
+#define INTERNAL_WAIT_STATES 2
+#define TA_READY_INPUT_ENABLE 6
+#define LOCAL_BURST_ENABLE 8
+#define SCATTER_GATHER_MODE 9
+#define DONE_INTERRUPT_ENABLE 10
+#define LOCAL_ADDRESSING_MODE 11
+#define DEMAND_MODE 12
+#define DMA_EOT_ENABLE 14
+#define FAST_SLOW_TERMINATE_MODE_SELECT 15
+#define DMA_CHANNEL_INTERRUPT_SELECT 17
+#define DMAPADR0 0x84
+#define DMALADR0 0x88
+#define DMASIZ0 0x8c
+#define DMADPR0 0x90
+#define DESCRIPTOR_LOCATION 0
+#define END_OF_CHAIN 1
+#define INTERRUPT_AFTER_TERMINAL_COUNT 2
+#define DIRECTION_OF_TRANSFER 3
+#define DMACSR0 0xa8
+#define CHANNEL_ENABLE 0
+#define CHANNEL_START 1
+#define CHANNEL_ABORT 2
+#define CHANNEL_CLEAR_INTERRUPT 3
+#define CHANNEL_DONE 4
+#define DMATHR 0xb0
+#define LBRD1 0xf8
+#define MEMORY_SPACE_LOCAL_BUS_WIDTH 0
+#define W8_BIT 0
+#define W16_BIT 1
+
+/* Special OR'ing of INTCSR bits */
+#define LOCAL_INTERRUPT_TEST \
+ ((1 << LOCAL_INPUT_INTERRUPT_ACTIVE) | \
+ (1 << LOCAL_INTERRUPT_INPUT_ENABLE))
+
+#define DMA_CHANNEL_0_TEST \
+ ((1 << DMA_CHANNEL_0_INTERRUPT_ACTIVE) | \
+ (1 << LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE))
+
+#define DMA_CHANNEL_1_TEST \
+ ((1 << DMA_CHANNEL_1_INTERRUPT_ACTIVE) | \
+ (1 << LOCAL_DMA_CHANNEL_1_INTERRUPT_ENABLE))
+
+/* EPLD Registers */
+#define RDK_EPLD_IO_REGISTER1 0x00000000
+#define RDK_EPLD_USB_RESET 0
+#define RDK_EPLD_USB_POWERDOWN 1
+#define RDK_EPLD_USB_WAKEUP 2
+#define RDK_EPLD_USB_EOT 3
+#define RDK_EPLD_DPPULL 4
+#define RDK_EPLD_IO_REGISTER2 0x00000004
+#define RDK_EPLD_BUSWIDTH 0
+#define RDK_EPLD_USER 2
+#define RDK_EPLD_RESET_INTERRUPT_ENABLE 3
+#define RDK_EPLD_DMA_TIMEOUT_ENABLE 4
+#define RDK_EPLD_STATUS_REGISTER 0x00000008
+#define RDK_EPLD_USB_LRESET 0
+#define RDK_EPLD_REVISION_REGISTER 0x0000000c
+
+#define EPLD_IO_CONTROL_REGISTER 0x400
+#define NET2272_RESET 0
+#define BUSWIDTH 1
+#define MPX_MODE 3
+#define USER 4
+#define DMA_TIMEOUT_ENABLE 5
+#define DMA_CTL_DACK 6
+#define EPLD_DMA_ENABLE 7
+#define EPLD_DMA_CONTROL_REGISTER 0x800
+#define SPLIT_DMA_MODE 0
+#define SPLIT_DMA_DIRECTION 1
+#define SPLIT_DMA_ENABLE 2
+#define SPLIT_DMA_INTERRUPT_ENABLE 3
+#define SPLIT_DMA_INTERRUPT 4
+#define EPLD_DMA_MODE 5
+#define EPLD_DMA_CONTROLLER_ENABLE 7
+#define SPLIT_DMA_ADDRESS_LOW 0xc00
+#define SPLIT_DMA_ADDRESS_HIGH 0x1000
+#define SPLIT_DMA_BYTE_COUNT_LOW 0x1400
+#define SPLIT_DMA_BYTE_COUNT_HIGH 0x1800
+#define EPLD_REVISION_REGISTER 0x1c00
+#define SPLIT_DMA_RAM 0x4000
+#define DMA_RAM_SIZE 0x1000
+
+/*---------------------------------------------------------------------------*/
+
+#define PCI_DEVICE_ID_RDK2 0x3272
+
+/* PCI-RDK version 2 registers */
+
+/* Main Control Registers */
+
+#define RDK2_IRQENB 0x00
+#define RDK2_IRQSTAT 0x04
+#define PB7 23
+#define PB6 22
+#define PB5 21
+#define PB4 20
+#define PB3 19
+#define PB2 18
+#define PB1 17
+#define PB0 16
+#define GP3 23
+#define GP2 23
+#define GP1 23
+#define GP0 23
+#define DMA_RETRY_ABORT 6
+#define DMA_PAUSE_DONE 5
+#define DMA_ABORT_DONE 4
+#define DMA_OUT_FIFO_TRANSFER_DONE 3
+#define DMA_LOCAL_DONE 2
+#define DMA_PCI_DONE 1
+#define NET2272_PCI_IRQ 0
+
+#define RDK2_LOCCTLRDK 0x08
+#define CHIP_RESET 3
+#define SPLIT_DMA 2
+#define MULTIPLEX_MODE 1
+#define BUS_WIDTH 0
+
+#define RDK2_GPIOCTL 0x10
+#define GP3_OUT_ENABLE 7
+#define GP2_OUT_ENABLE 6
+#define GP1_OUT_ENABLE 5
+#define GP0_OUT_ENABLE 4
+#define GP3_DATA 3
+#define GP2_DATA 2
+#define GP1_DATA 1
+#define GP0_DATA 0
+
+#define RDK2_LEDSW 0x14
+#define LED3 27
+#define LED2 26
+#define LED1 25
+#define LED0 24
+#define PBUTTON 16
+#define DIPSW 0
+
+#define RDK2_DIAG 0x18
+#define RDK2_FAST_TIMES 2
+#define FORCE_PCI_SERR 1
+#define FORCE_PCI_INT 0
+#define RDK2_FPGAREV 0x1C
+
+/* Dma Control registers */
+#define RDK2_DMACTL 0x80
+#define ADDR_HOLD 24
+#define RETRY_COUNT 16 /* 23:16 */
+#define FIFO_THRESHOLD 11 /* 15:11 */
+#define MEM_WRITE_INVALIDATE 10
+#define READ_MULTIPLE 9
+#define READ_LINE 8
+#define RDK2_DMA_MODE 6 /* 7:6 */
+#define CONTROL_DACK 5
+#define EOT_ENABLE 4
+#define EOT_POLARITY 3
+#define DACK_POLARITY 2
+#define DREQ_POLARITY 1
+#define DMA_ENABLE 0
+
+#define RDK2_DMASTAT 0x84
+#define GATHER_COUNT 12 /* 14:12 */
+#define FIFO_COUNT 6 /* 11:6 */
+#define FIFO_FLUSH 5
+#define FIFO_TRANSFER 4
+#define PAUSE_DONE 3
+#define ABORT_DONE 2
+#define DMA_ABORT 1
+#define DMA_START 0
+
+#define RDK2_DMAPCICOUNT 0x88
+#define DMA_DIRECTION 31
+#define DMA_PCI_BYTE_COUNT 0 /* 0:23 */
+
+#define RDK2_DMALOCCOUNT 0x8C /* 0:23 dma local byte count */
+
+#define RDK2_DMAADDR 0x90 /* 2:31 PCI bus starting address */
+
+/*---------------------------------------------------------------------------*/
+
+#define REG_INDEXED_THRESHOLD (1 << 5)
+
+/* DRIVER DATA STRUCTURES and UTILITIES */
+struct net2272_ep {
+ struct usb_ep ep;
+ struct net2272 *dev;
+ unsigned long irqs;
+
+ /* analogous to a host-side qh */
+ struct list_head queue;
+ const struct usb_endpoint_descriptor *desc;
+ unsigned num:8,
+ fifo_size:12,
+ stopped:1,
+ wedged:1,
+ is_in:1,
+ is_iso:1,
+ dma:1,
+ not_empty:1;
+};
+
+struct net2272 {
+ /* each device provides one gadget, several endpoints */
+ struct usb_gadget gadget;
+ struct device *dev;
+ unsigned short dev_id;
+
+ spinlock_t lock;
+ struct net2272_ep ep[4];
+ struct usb_gadget_driver *driver;
+ unsigned protocol_stall:1,
+ softconnect:1,
+ wakeup:1,
+ dma_eot_polarity:1,
+ dma_dack_polarity:1,
+ dma_dreq_polarity:1,
+ dma_busy:1;
+ u16 chiprev;
+ u8 pagesel;
+
+ unsigned int irq;
+ unsigned short fifo_mode;
+
+ unsigned int base_shift;
+ u16 __iomem *base_addr;
+ union {
+#ifdef CONFIG_PCI
+ struct {
+ void __iomem *plx9054_base_addr;
+ void __iomem *epld_base_addr;
+ } rdk1;
+ struct {
+ /* Bar0, Bar1 is base_addr both mem-mapped */
+ void __iomem *fpga_base_addr;
+ } rdk2;
+#endif
+ };
+};
+
+static void __iomem *
+net2272_reg_addr(struct net2272 *dev, unsigned int reg)
+{
+ return dev->base_addr + (reg << dev->base_shift);
+}
+
+static void
+net2272_write(struct net2272 *dev, unsigned int reg, u8 value)
+{
+ if (reg >= REG_INDEXED_THRESHOLD) {
+ /*
+ * Indexed register; use REGADDRPTR/REGDATA
+ * - Save and restore REGADDRPTR. This prevents REGADDRPTR from
+ * changes between other code sections, but it is time consuming.
+ * - Performance tips: either do not save and restore REGADDRPTR (if it
+ * is safe) or do save/restore operations only in critical sections.
+ u8 tmp = readb(dev->base_addr + REGADDRPTR);
+ */
+ writeb((u8)reg, net2272_reg_addr(dev, REGADDRPTR));
+ writeb(value, net2272_reg_addr(dev, REGDATA));
+ /* writeb(tmp, net2272_reg_addr(dev, REGADDRPTR)); */
+ } else
+ writeb(value, net2272_reg_addr(dev, reg));
+}
+
+static u8
+net2272_read(struct net2272 *dev, unsigned int reg)
+{
+ u8 ret;
+
+ if (reg >= REG_INDEXED_THRESHOLD) {
+ /*
+ * Indexed register; use REGADDRPTR/REGDATA
+ * - Save and restore REGADDRPTR. This prevents REGADDRPTR from
+ * changes between other code sections, but it is time consuming.
+ * - Performance tips: either do not save and restore REGADDRPTR (if it
+ * is safe) or do save/restore operations only in critical sections.
+ u8 tmp = readb(dev->base_addr + REGADDRPTR);
+ */
+ writeb((u8)reg, net2272_reg_addr(dev, REGADDRPTR));
+ ret = readb(net2272_reg_addr(dev, REGDATA));
+ /* writeb(tmp, net2272_reg_addr(dev, REGADDRPTR)); */
+ } else
+ ret = readb(net2272_reg_addr(dev, reg));
+
+ return ret;
+}
+
+static void
+net2272_ep_write(struct net2272_ep *ep, unsigned int reg, u8 value)
+{
+ struct net2272 *dev = ep->dev;
+
+ if (dev->pagesel != ep->num) {
+ net2272_write(dev, PAGESEL, ep->num);
+ dev->pagesel = ep->num;
+ }
+ net2272_write(dev, reg, value);
+}
+
+static u8
+net2272_ep_read(struct net2272_ep *ep, unsigned int reg)
+{
+ struct net2272 *dev = ep->dev;
+
+ if (dev->pagesel != ep->num) {
+ net2272_write(dev, PAGESEL, ep->num);
+ dev->pagesel = ep->num;
+ }
+ return net2272_read(dev, reg);
+}
+
+static void allow_status(struct net2272_ep *ep)
+{
+ /* ep0 only */
+ net2272_ep_write(ep, EP_RSPCLR,
+ (1 << CONTROL_STATUS_PHASE_HANDSHAKE) |
+ (1 << ALT_NAK_OUT_PACKETS) |
+ (1 << NAK_OUT_PACKETS_MODE));
+ ep->stopped = 1;
+}
+
+static void set_halt(struct net2272_ep *ep)
+{
+ /* ep0 and bulk/intr endpoints */
+ net2272_ep_write(ep, EP_RSPCLR, 1 << CONTROL_STATUS_PHASE_HANDSHAKE);
+ net2272_ep_write(ep, EP_RSPSET, 1 << ENDPOINT_HALT);
+}
+
+static void clear_halt(struct net2272_ep *ep)
+{
+ /* ep0 and bulk/intr endpoints */
+ net2272_ep_write(ep, EP_RSPCLR,
+ (1 << ENDPOINT_HALT) | (1 << ENDPOINT_TOGGLE));
+}
+
+/* count (<= 4) bytes in the next fifo write will be valid */
+static void set_fifo_bytecount(struct net2272_ep *ep, unsigned count)
+{
+ /* net2272_ep_write will truncate to u8 for us */
+ net2272_ep_write(ep, EP_TRANSFER2, count >> 16);
+ net2272_ep_write(ep, EP_TRANSFER1, count >> 8);
+ net2272_ep_write(ep, EP_TRANSFER0, count);
+}
+
+struct net2272_request {
+ struct usb_request req;
+ struct list_head queue;
+ unsigned mapped:1,
+ valid:1;
+};
+
+#endif
Code Review / kvmfornfv.git / blobdiff