xref: /drivers/net/wireless/p54/net2280.h

#ifndef NET2280_H
#define NET2280_H
/*
 * NetChip 2280 high/full speed USB device controller.
 * Unlike many such controllers, this one talks PCI.
 */

/*
 * Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com)
 * Copyright (C) 2003 David Brownell
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

/*-------------------------------------------------------------------------*/

/* NET2280 MEMORY MAPPED REGISTERS
 *
 * The register layout came from the chip documentation, and the bit
 * number definitions were extracted from chip specification.
 *
 * Use the shift operator ('<<') to build bit masks, with readl/writel
 * to access the registers through PCI.
 */

/* main registers, BAR0 + 0x0000 */
struct net2280_regs {
	/* offset 0x0000 */
	__le32			devinit;
#define LOCAL_CLOCK_FREQUENCY					8
#define FORCE_PCI_RESET						7
#define PCI_ID							6
#define PCI_ENABLE						5
#define FIFO_SOFT_RESET						4
#define CFG_SOFT_RESET						3
#define PCI_SOFT_RESET						2
#define USB_SOFT_RESET						1
#define M8051_RESET						0
	__le32			eectl;
#define EEPROM_ADDRESS_WIDTH					23
#define EEPROM_CHIP_SELECT_ACTIVE				22
#define EEPROM_PRESENT						21
#define EEPROM_VALID						20
#define EEPROM_BUSY						19
#define EEPROM_CHIP_SELECT_ENABLE				18
#define EEPROM_BYTE_READ_START					17
#define EEPROM_BYTE_WRITE_START					16
#define EEPROM_READ_DATA					8
#define EEPROM_WRITE_DATA					0
	__le32			eeclkfreq;
	u32			_unused0;
	/* offset 0x0010 */

	__le32			pciirqenb0;	/* interrupt PCI master ... */
#define SETUP_PACKET_INTERRUPT_ENABLE				7
#define ENDPOINT_F_INTERRUPT_ENABLE				6
#define ENDPOINT_E_INTERRUPT_ENABLE				5
#define ENDPOINT_D_INTERRUPT_ENABLE				4
#define ENDPOINT_C_INTERRUPT_ENABLE				3
#define ENDPOINT_B_INTERRUPT_ENABLE				2
#define ENDPOINT_A_INTERRUPT_ENABLE				1
#define ENDPOINT_0_INTERRUPT_ENABLE				0
	__le32			pciirqenb1;
#define PCI_INTERRUPT_ENABLE					31
#define POWER_STATE_CHANGE_INTERRUPT_ENABLE			27
#define PCI_ARBITER_TIMEOUT_INTERRUPT_ENABLE			26
#define PCI_PARITY_ERROR_INTERRUPT_ENABLE			25
#define PCI_MASTER_ABORT_RECEIVED_INTERRUPT_ENABLE		20
#define PCI_TARGET_ABORT_RECEIVED_INTERRUPT_ENABLE		19
#define PCI_TARGET_ABORT_ASSERTED_INTERRUPT_ENABLE		18
#define PCI_RETRY_ABORT_INTERRUPT_ENABLE			17
#define PCI_MASTER_CYCLE_DONE_INTERRUPT_ENABLE			16
#define GPIO_INTERRUPT_ENABLE					13
#define DMA_D_INTERRUPT_ENABLE					12
#define DMA_C_INTERRUPT_ENABLE					11
#define DMA_B_INTERRUPT_ENABLE					10
#define DMA_A_INTERRUPT_ENABLE					9
#define EEPROM_DONE_INTERRUPT_ENABLE				8
#define VBUS_INTERRUPT_ENABLE					7
#define CONTROL_STATUS_INTERRUPT_ENABLE				6
#define ROOT_PORT_RESET_INTERRUPT_ENABLE			4
#define SUSPEND_REQUEST_INTERRUPT_ENABLE			3
#define SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE			2
#define RESUME_INTERRUPT_ENABLE					1
#define SOF_INTERRUPT_ENABLE					0
	__le32                  cpu_irqenb0;	/* ... or onboard 8051 */
#define SETUP_PACKET_INTERRUPT_ENABLE				7
#define ENDPOINT_F_INTERRUPT_ENABLE				6
#define ENDPOINT_E_INTERRUPT_ENABLE				5
#define ENDPOINT_D_INTERRUPT_ENABLE				4
#define ENDPOINT_C_INTERRUPT_ENABLE				3
#define ENDPOINT_B_INTERRUPT_ENABLE				2
#define ENDPOINT_A_INTERRUPT_ENABLE				1
#define ENDPOINT_0_INTERRUPT_ENABLE				0
	__le32                  cpu_irqenb1;
#define CPU_INTERRUPT_ENABLE					31
#define POWER_STATE_CHANGE_INTERRUPT_ENABLE			27
#define PCI_ARBITER_TIMEOUT_INTERRUPT_ENABLE			26
#define PCI_PARITY_ERROR_INTERRUPT_ENABLE			25
#define PCI_INTA_INTERRUPT_ENABLE				24
#define PCI_PME_INTERRUPT_ENABLE				23
#define PCI_SERR_INTERRUPT_ENABLE				22
#define PCI_PERR_INTERRUPT_ENABLE				21
#define PCI_MASTER_ABORT_RECEIVED_INTERRUPT_ENABLE		20
#define PCI_TARGET_ABORT_RECEIVED_INTERRUPT_ENABLE		19
#define PCI_RETRY_ABORT_INTERRUPT_ENABLE			17
#define PCI_MASTER_CYCLE_DONE_INTERRUPT_ENABLE			16
#define GPIO_INTERRUPT_ENABLE					13
#define DMA_D_INTERRUPT_ENABLE					12
#define DMA_C_INTERRUPT_ENABLE					11
#define DMA_B_INTERRUPT_ENABLE					10
#define DMA_A_INTERRUPT_ENABLE					9
#define EEPROM_DONE_INTERRUPT_ENABLE				8
#define VBUS_INTERRUPT_ENABLE					7
#define CONTROL_STATUS_INTERRUPT_ENABLE				6
#define ROOT_PORT_RESET_INTERRUPT_ENABLE			4
#define SUSPEND_REQUEST_INTERRUPT_ENABLE			3
#define SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE			2
#define RESUME_INTERRUPT_ENABLE					1
#define SOF_INTERRUPT_ENABLE					0

	/* offset 0x0020 */
	u32			_unused1;
	__le32			usbirqenb1;
#define USB_INTERRUPT_ENABLE					31
#define POWER_STATE_CHANGE_INTERRUPT_ENABLE			27
#define PCI_ARBITER_TIMEOUT_INTERRUPT_ENABLE			26
#define PCI_PARITY_ERROR_INTERRUPT_ENABLE			25
#define PCI_INTA_INTERRUPT_ENABLE				24
#define PCI_PME_INTERRUPT_ENABLE				23
#define PCI_SERR_INTERRUPT_ENABLE				22
#define PCI_PERR_INTERRUPT_ENABLE				21
#define PCI_MASTER_ABORT_RECEIVED_INTERRUPT_ENABLE		20
#define PCI_TARGET_ABORT_RECEIVED_INTERRUPT_ENABLE		19
#define PCI_RETRY_ABORT_INTERRUPT_ENABLE			17
#define PCI_MASTER_CYCLE_DONE_INTERRUPT_ENABLE			16
#define GPIO_INTERRUPT_ENABLE					13
#define DMA_D_INTERRUPT_ENABLE					12
#define DMA_C_INTERRUPT_ENABLE					11
#define DMA_B_INTERRUPT_ENABLE					10
#define DMA_A_INTERRUPT_ENABLE					9
#define EEPROM_DONE_INTERRUPT_ENABLE				8
#define VBUS_INTERRUPT_ENABLE					7
#define CONTROL_STATUS_INTERRUPT_ENABLE				6
#define ROOT_PORT_RESET_INTERRUPT_ENABLE			4
#define SUSPEND_REQUEST_INTERRUPT_ENABLE			3
#define SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE			2
#define RESUME_INTERRUPT_ENABLE					1
#define SOF_INTERRUPT_ENABLE					0
	__le32			irqstat0;
#define INTA_ASSERTED						12
#define SETUP_PACKET_INTERRUPT					7
#define ENDPOINT_F_INTERRUPT					6
#define ENDPOINT_E_INTERRUPT					5
#define ENDPOINT_D_INTERRUPT					4
#define ENDPOINT_C_INTERRUPT					3
#define ENDPOINT_B_INTERRUPT					2
#define ENDPOINT_A_INTERRUPT					1
#define ENDPOINT_0_INTERRUPT					0
	__le32			irqstat1;
#define POWER_STATE_CHANGE_INTERRUPT				27
#define PCI_ARBITER_TIMEOUT_INTERRUPT				26
#define PCI_PARITY_ERROR_INTERRUPT				25
#define PCI_INTA_INTERRUPT					24
#define PCI_PME_INTERRUPT					23
#define PCI_SERR_INTERRUPT					22
#define PCI_PERR_INTERRUPT					21
#define PCI_MASTER_ABORT_RECEIVED_INTERRUPT			20
#define PCI_TARGET_ABORT_RECEIVED_INTERRUPT			19
#define PCI_RETRY_ABORT_INTERRUPT				17
#define PCI_MASTER_CYCLE_DONE_INTERRUPT				16
#define GPIO_INTERRUPT						13
#define DMA_D_INTERRUPT						12
#define DMA_C_INTERRUPT						11
#define DMA_B_INTERRUPT						10
#define DMA_A_INTERRUPT						9
#define EEPROM_DONE_INTERRUPT					8
#define VBUS_INTERRUPT						7
#define CONTROL_STATUS_INTERRUPT				6
#define ROOT_PORT_RESET_INTERRUPT				4
#define SUSPEND_REQUEST_INTERRUPT				3
#define SUSPEND_REQUEST_CHANGE_INTERRUPT			2
#define RESUME_INTERRUPT					1
#define SOF_INTERRUPT						0
	/* offset 0x0030 */
	__le32			idxaddr;
	__le32			idxdata;
	__le32			fifoctl;
#define PCI_BASE2_RANGE						16
#define IGNORE_FIFO_AVAILABILITY				3
#define PCI_BASE2_SELECT					2
#define FIFO_CONFIGURATION_SELECT				0
	u32			_unused2;
	/* offset 0x0040 */
	__le32			memaddr;
#define START							28
#define DIRECTION						27
#define FIFO_DIAGNOSTIC_SELECT					24
#define MEMORY_ADDRESS						0
	__le32			memdata0;
	__le32			memdata1;
	u32			_unused3;
	/* offset 0x0050 */
	__le32			gpioctl;
#define GPIO3_LED_SELECT					12
#define GPIO3_INTERRUPT_ENABLE					11
#define GPIO2_INTERRUPT_ENABLE					10
#define GPIO1_INTERRUPT_ENABLE					9
#define GPIO0_INTERRUPT_ENABLE					8
#define GPIO3_OUTPUT_ENABLE					7
#define GPIO2_OUTPUT_ENABLE					6
#define GPIO1_OUTPUT_ENABLE					5
#define GPIO0_OUTPUT_ENABLE					4
#define GPIO3_DATA						3
#define GPIO2_DATA						2
#define GPIO1_DATA						1
#define GPIO0_DATA						0
	__le32			gpiostat;
#define GPIO3_INTERRUPT						3
#define GPIO2_INTERRUPT						2
#define GPIO1_INTERRUPT						1
#define GPIO0_INTERRUPT						0
} __packed;

/* usb control, BAR0 + 0x0080 */
struct net2280_usb_regs {
	/* offset 0x0080 */
	__le32			stdrsp;
#define STALL_UNSUPPORTED_REQUESTS				31
#define SET_TEST_MODE						16
#define GET_OTHER_SPEED_CONFIGURATION				15
#define GET_DEVICE_QUALIFIER					14
#define SET_ADDRESS						13
#define ENDPOINT_SET_CLEAR_HALT					12
#define DEVICE_SET_CLEAR_DEVICE_REMOTE_WAKEUP			11
#define GET_STRING_DESCRIPTOR_2					10
#define GET_STRING_DESCRIPTOR_1					9
#define GET_STRING_DESCRIPTOR_0					8
#define GET_SET_INTERFACE					6
#define GET_SET_CONFIGURATION					5
#define GET_CONFIGURATION_DESCRIPTOR				4
#define GET_DEVICE_DESCRIPTOR					3
#define GET_ENDPOINT_STATUS					2
#define GET_INTERFACE_STATUS					1
#define GET_DEVICE_STATUS					0
	__le32			prodvendid;
#define     PRODUCT_ID						16
#define     VENDOR_ID						0
	__le32			relnum;
	__le32			usbctl;
#define SERIAL_NUMBER_INDEX					16
#define PRODUCT_ID_STRING_ENABLE				13
#define VENDOR_ID_STRING_ENABLE					12
#define USB_ROOT_PORT_WAKEUP_ENABLE				11
#define VBUS_PIN						10
#define TIMED_DISCONNECT					9
#define SUSPEND_IMMEDIATELY					7
#define SELF_POWERED_USB_DEVICE					6
#define REMOTE_WAKEUP_SUPPORT					5
#define PME_POLARITY						4
#define USB_DETECT_ENABLE					3
#define PME_WAKEUP_ENABLE					2
#define DEVICE_REMOTE_WAKEUP_ENABLE				1
#define SELF_POWERED_STATUS					0
	/* offset 0x0090 */
	__le32			usbstat;
#define HIGH_SPEED						7
#define FULL_SPEED						6
#define GENERATE_RESUME						5
#define GENERATE_DEVICE_REMOTE_WAKEUP				4
	__le32			xcvrdiag;
#define FORCE_HIGH_SPEED_MODE					31
#define FORCE_FULL_SPEED_MODE					30
#define USB_TEST_MODE						24
#define LINE_STATE						16
#define TRANSCEIVER_OPERATION_MODE				2
#define TRANSCEIVER_SELECT					1
#define TERMINATION_SELECT					0
	__le32			setup0123;
	__le32			setup4567;
	/* offset 0x0090 */
	u32			_unused0;
	__le32			ouraddr;
#define FORCE_IMMEDIATE						7
#define OUR_USB_ADDRESS						0
	__le32			ourconfig;
} __packed;

/* pci control, BAR0 + 0x0100 */
struct net2280_pci_regs {
	/* offset 0x0100 */
	__le32			pcimstctl;
#define PCI_ARBITER_PARK_SELECT					13
#define PCI_MULTI LEVEL_ARBITER					12
#define PCI_RETRY_ABORT_ENABLE					11
#define DMA_MEMORY_WRITE_AND_INVALIDATE_ENABLE			10
#define DMA_READ_MULTIPLE_ENABLE				9
#define DMA_READ_LINE_ENABLE					8
#define PCI_MASTER_COMMAND_SELECT				6
#define		MEM_READ_OR_WRITE				0
#define		IO_READ_OR_WRITE				1
#define		CFG_READ_OR_WRITE				2
#define PCI_MASTER_START					5
#define PCI_MASTER_READ_WRITE					4
#define		PCI_MASTER_WRITE				0
#define		PCI_MASTER_READ					1
#define PCI_MASTER_BYTE_WRITE_ENABLES				0
	__le32			pcimstaddr;
	__le32			pcimstdata;
	__le32			pcimststat;
#define PCI_ARBITER_CLEAR					2
#define PCI_EXTERNAL_ARBITER					1
#define PCI_HOST_MODE						0
} __packed;

/* dma control, BAR0 + 0x0180 ... array of four structs like this,
 * for channels 0..3.  see also struct net2280_dma:  descriptor
 * that can be loaded into some of these registers.
 */
struct net2280_dma_regs {	/* [11.7] */
	/* offset 0x0180, 0x01a0, 0x01c0, 0x01e0, */
	__le32			dmactl;
#define DMA_SCATTER_GATHER_DONE_INTERRUPT_ENABLE		25
#define DMA_CLEAR_COUNT_ENABLE					21
#define DESCRIPTOR_POLLING_RATE					19
#define		POLL_CONTINUOUS					0
#define		POLL_1_USEC					1
#define		POLL_100_USEC					2
#define		POLL_1_MSEC					3
#define DMA_VALID_BIT_POLLING_ENABLE				18
#define DMA_VALID_BIT_ENABLE					17
#define DMA_SCATTER_GATHER_ENABLE				16
#define DMA_OUT_AUTO_START_ENABLE				4
#define DMA_PREEMPT_ENABLE					3
#define DMA_FIFO_VALIDATE					2
#define DMA_ENABLE						1
#define DMA_ADDRESS_HOLD					0
	__le32			dmastat;
#define DMA_SCATTER_GATHER_DONE_INTERRUPT			25
#define DMA_TRANSACTION_DONE_INTERRUPT				24
#define DMA_ABORT						1
#define DMA_START						0
	u32			_unused0[2];
	/* offset 0x0190, 0x01b0, 0x01d0, 0x01f0, */
	__le32                  dmacount;
#define VALID_BIT						31
#define DMA_DIRECTION						30
#define DMA_DONE_INTERRUPT_ENABLE				29
#define END_OF_CHAIN						28
#define DMA_BYTE_COUNT_MASK					((1<<24)-1)
#define DMA_BYTE_COUNT						0
	__le32			dmaaddr;
	__le32			dmadesc;
	u32			_unused1;
} __packed;

/* dedicated endpoint registers, BAR0 + 0x0200 */

struct net2280_dep_regs {	/* [11.8] */
	/* offset 0x0200, 0x0210, 0x220, 0x230, 0x240 */
	__le32			dep_cfg;
	/* offset 0x0204, 0x0214, 0x224, 0x234, 0x244 */
	__le32			dep_rsp;
	u32			_unused[2];
} __packed;

/* configurable endpoint registers, BAR0 + 0x0300 ... array of seven structs
 * like this, for ep0 then the configurable endpoints A..F
 * ep0 reserved for control; E and F have only 64 bytes of fifo
 */
struct net2280_ep_regs {	/* [11.9] */
	/* offset 0x0300, 0x0320, 0x0340, 0x0360, 0x0380, 0x03a0, 0x03c0 */
	__le32			ep_cfg;
#define ENDPOINT_BYTE_COUNT					16
#define ENDPOINT_ENABLE						10
#define ENDPOINT_TYPE						8
#define ENDPOINT_DIRECTION					7
#define ENDPOINT_NUMBER						0
	__le32			ep_rsp;
#define SET_NAK_OUT_PACKETS					15
#define SET_EP_HIDE_STATUS_PHASE				14
#define SET_EP_FORCE_CRC_ERROR					13
#define SET_INTERRUPT_MODE					12
#define SET_CONTROL_STATUS_PHASE_HANDSHAKE			11
#define SET_NAK_OUT_PACKETS_MODE				10
#define SET_ENDPOINT_TOGGLE					9
#define SET_ENDPOINT_HALT					8
#define CLEAR_NAK_OUT_PACKETS					7
#define CLEAR_EP_HIDE_STATUS_PHASE				6
#define CLEAR_EP_FORCE_CRC_ERROR				5
#define CLEAR_INTERRUPT_MODE					4
#define CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE			3
#define CLEAR_NAK_OUT_PACKETS_MODE				2
#define CLEAR_ENDPOINT_TOGGLE					1
#define CLEAR_ENDPOINT_HALT					0
	__le32			ep_irqenb;
#define SHORT_PACKET_OUT_DONE_INTERRUPT_ENABLE			6
#define SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE		5
#define DATA_PACKET_RECEIVED_INTERRUPT_ENABLE			3
#define DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE		2
#define DATA_OUT_PING_TOKEN_INTERRUPT_ENABLE			1
#define DATA_IN_TOKEN_INTERRUPT_ENABLE				0
	__le32			ep_stat;
#define FIFO_VALID_COUNT					24
#define HIGH_BANDWIDTH_OUT_TRANSACTION_PID			22
#define TIMEOUT							21
#define USB_STALL_SENT						20
#define USB_IN_NAK_SENT						19
#define USB_IN_ACK_RCVD						18
#define USB_OUT_PING_NAK_SENT					17
#define USB_OUT_ACK_SENT					16
#define FIFO_OVERFLOW						13
#define FIFO_UNDERFLOW						12
#define FIFO_FULL						11
#define FIFO_EMPTY						10
#define FIFO_FLUSH						9
#define SHORT_PACKET_OUT_DONE_INTERRUPT				6
#define SHORT_PACKET_TRANSFERRED_INTERRUPT			5
#define NAK_OUT_PACKETS						4
#define DATA_PACKET_RECEIVED_INTERRUPT				3
#define DATA_PACKET_TRANSMITTED_INTERRUPT			2
#define DATA_OUT_PING_TOKEN_INTERRUPT				1
#define DATA_IN_TOKEN_INTERRUPT					0
	/* offset 0x0310, 0x0330, 0x0350, 0x0370, 0x0390, 0x03b0, 0x03d0 */
	__le32			ep_avail;
	__le32			ep_data;
	u32			_unused0[2];
} __packed;

struct net2280_reg_write {
	__le16 port;
	__le32 addr;
	__le32 val;
} __packed;

struct net2280_reg_read {
	__le16 port;
	__le32 addr;
} __packed;
#endif /* NET2280_H */