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wdenk232c1502004-03-12 00:14:09 +00001/*
2 * (C) Copyright 2003
3 * Gerry Hamel, geh@ti.com, Texas Instruments
4 *
5 * Based on
6 * linux/drivers/usb/device/bi/omap.h
7 * Register definitions for TI OMAP1510 USB bus interface driver
8 *
9 * Author: MontaVista Software, Inc.
10 * source@mvista.com
11 *
12 * 2003 (c) MontaVista Software, Inc. This file is licensed under
13 * the terms of the GNU General Public License version 2. This program
14 * is licensed "as is" without any warranty of any kind, whether express
15 * or implied.
16 */
17
18#ifndef __USBDCORE_OMAP1510_H__
19#define __USBDCORE_OMAP1510_H__
20
21
22/*
23 * 13.2 MPU Register Map
24 */
25
26/* Table 13-1. USB Function Module Registers (endpoint) */
27#define UDC_BASE 0xFFFB4000
28#define UDC_OFFSET(offset) (UDC_BASE + (offset))
29#define UDC_REV UDC_OFFSET(0x0) /* Revision */
30#define UDC_EP_NUM UDC_OFFSET(0x4) /* Endpoint selection */
31#define UDC_DATA UDC_OFFSET(0x08) /* Data */
32#define UDC_CTRL UDC_OFFSET(0x0C) /* Control */
33#define UDC_STAT_FLG UDC_OFFSET(0x10) /* Status flag */
34#define UDC_RXFSTAT UDC_OFFSET(0x14) /* Receive FIFO status */
35#define UDC_SYSCON1 UDC_OFFSET(0x18) /* System configuration 1 */
36#define UDC_SYSCON2 UDC_OFFSET(0x1C) /* System configuration 2 */
37#define UDC_DEVSTAT UDC_OFFSET(0x20) /* Device status */
38#define UDC_SOF UDC_OFFSET(0x24) /* Start of frame */
39#define UDC_IRQ_EN UDC_OFFSET(0x28) /* Interrupt enable */
40#define UDC_DMA_IRQ_EN UDC_OFFSET(0x2C) /* DMA interrupt enable */
41#define UDC_IRQ_SRC UDC_OFFSET(0x30) /* Interrupt source */
42#define UDC_EPN_STAT UDC_OFFSET(0x34) /* Endpoint interrupt status */
43#define UDC_DMAN_STAT UDC_OFFSET(0x3C) /* DMA endpoint interrupt status */
44
45/* IRQ_EN register fields */
46#define UDC_Sof_IE (1 << 7) /* Start-of-frame interrupt enabled */
47#define UDC_EPn_RX_IE (1 << 5) /* Receive endpoint interrupt enabled */
48#define UDC_EPn_TX_IE (1 << 4) /* Transmit endpoint interrupt enabled */
49#define UDC_DS_Chg_IE (1 << 3) /* Device state changed interrupt enabled */
50#define UDC_EP0_IE (1 << 0) /* EP0 transaction interrupt enabled */
51
52/* IRQ_SRC register fields */
53#define UDC_TXn_Done (1 << 10) /* Transmit DMA channel n done */
54#define UDC_RXn_Cnt (1 << 9) /* Receive DMA channel n transactions count */
55#define UDC_RXn_EOT (1 << 8) /* Receive DMA channel n end of transfer */
56#define UDC_SOF_Flg (1 << 7) /* Start-of-frame interrupt flag */
57#define UDC_EPn_RX (1 << 5) /* Endpoint n OUT transaction */
58#define UDC_EPn_TX (1 << 4) /* Endpoint n IN transaction */
59#define UDC_DS_Chg (1 << 3) /* Device state changed */
60#define UDC_Setup (1 << 2) /* Setup transaction */
61#define UDC_EP0_RX (1 << 1) /* EP0 OUT transaction */
62#define UDC_EP0_TX (1 << 0) /* EP0 IN transaction */
63
64/* DEVSTAT register fields, 14.2.9 */
65#define UDC_R_WK_OK (1 << 6) /* Remote wakeup granted */
66#define UDC_USB_Reset (1 << 5) /* USB reset signalling is active */
67#define UDC_SUS (1 << 4) /* Suspended state */
68#define UDC_CFG (1 << 3) /* Configured state */
69#define UDC_ADD (1 << 2) /* Addressed state */
70#define UDC_DEF (1 << 1) /* Default state */
71#define UDC_ATT (1 << 0) /* Attached state */
72
73/* SYSCON1 register fields */
74#define UDC_Cfg_Lock (1 << 8) /* Device configuration locked */
75#define UDC_Nak_En (1 << 4) /* NAK enable */
76#define UDC_Self_Pwr (1 << 2) /* Device is self-powered */
77#define UDC_Soff_Dis (1 << 1) /* Shutoff disabled */
78#define UDC_Pullup_En (1 << 0) /* External pullup enabled */
79
80/* SYSCON2 register fields */
81#define UDC_Rmt_Wkp (1 << 6) /* Remote wakeup */
82#define UDC_Stall_Cmd (1 << 5) /* Stall endpoint */
83#define UDC_Dev_Cfg (1 << 3) /* Device configured */
84#define UDC_Clr_Cfg (1 << 2) /* Clear configured */
85
86/*
87 * Select and enable endpoints
88 */
89
90/* Table 13-1. USB Function Module Registers (endpoint configuration) */
91#define UDC_EPBASE UDC_OFFSET(0x80) /* Endpoints base address */
92#define UDC_EP0 UDC_EPBASE /* Control endpoint configuration */
93#define UDC_EP_RX_BASE UDC_OFFSET(0x84) /* Receive endpoints base address */
94#define UDC_EP_RX(endpoint) (UDC_EP_RX_BASE + ((endpoint) - 1) * 4)
95#define UDC_EP_TX_BASE UDC_OFFSET(0xC4) /* Transmit endpoints base address */
96#define UDC_EP_TX(endpoint) (UDC_EP_TX_BASE + ((endpoint) - 1) * 4)
97
98/* EP_NUM register fields */
99#define UDC_Setup_Sel (1 << 6) /* Setup FIFO select */
100#define UDC_EP_Sel (1 << 5) /* TX/RX FIFO select */
101#define UDC_EP_Dir (1 << 4) /* Endpoint direction */
102
103/* CTRL register fields */
104#define UDC_Clr_Halt (1 << 7) /* Clear halt endpoint */
105#define UDC_Set_Halt (1 << 6) /* Set halt endpoint */
106#define UDC_Set_FIFO_En (1 << 2) /* Set FIFO enable */
107#define UDC_Clr_EP (1 << 1) /* Clear endpoint */
108#define UDC_Reset_EP (1 << 0) /* Reset endpoint */
109
110/* STAT_FLG register fields */
111#define UDC_Miss_In (1 << 14)
112#define UDC_Data_Flush (1 << 13)
113#define UDC_ISO_Err (1 << 12)
114#define UDC_ISO_FIFO_Empty (1 << 9)
115#define UDC_ISO_FIFO_Full (1 << 8)
116#define UDC_EP_Halted (1 << 6)
117#define UDC_STALL (1 << 5)
118#define UDC_NAK (1 << 4)
119#define UDC_ACK (1 << 3)
120#define UDC_FIFO_En (1 << 2)
121#define UDC_Non_ISO_FIFO_Empty (1 << 1)
122#define UDC_Non_ISO_FIFO_Full (1 << 0)
123
124/* EPn_RX register fields */
125#define UDC_EPn_RX_Valid (1 << 15) /* valid */
126#define UDC_EPn_RX_Db (1 << 14) /* double-buffer */
127#define UDC_EPn_RX_Iso (1 << 11) /* isochronous */
128
129/* EPn_TX register fields */
130#define UDC_EPn_TX_Valid (1 << 15) /* valid */
131#define UDC_EPn_TX_Db (1 << 14) /* double-buffer */
132#define UDC_EPn_TX_Iso (1 << 11) /* isochronous */
133
134#define EP0_PACKETSIZE 0x40
135
136/* physical to logical endpoint mapping
137 * Physical endpoints are an index into device->bus->endpoint_array.
138 * Logical endpoints are endpoints 0 to 15 IN and OUT as defined in
139 * the USB specification.
140 *
141 * physical ep logical ep direction endpoint_address
142 * 0 0 IN and OUT 0x00
143 * 1 to 15 1 to 15 OUT 0x01 to 0x0f
144 * 16 to 30 1 to 15 IN 0x81 to 0x8f
145 */
146#define PHYS_EP_TO_EP_ADDR(ep) (((ep) < 16) ? (ep) : (((ep) - 15) | 0x80))
147#define EP_ADDR_TO_PHYS_EP(a) (((a) & 0x80) ? (((a) & ~0x80) + 15) : (a))
148
149/* MOD_CONF_CTRL_0 bits (FIXME: move to board hardware.h ?) */
150#define CONF_MOD_USB_W2FC_VBUS_MODE_R (1 << 17)
151
152/* Other registers (may be) related to USB */
153
154#define CLOCK_CTRL (0xFFFE0830)
155#define APLL_CTRL (0xFFFE084C)
156#define DPLL_CTRL (0xFFFE083C)
157#define SOFT_REQ (0xFFFE0834)
158#define STATUS_REQ (0xFFFE0840)
159
160/* FUNC_MUX_CTRL_0 bits related to USB */
161#define UDC_VBUS_CTRL (1 << 19)
162#define UDC_VBUS_MODE (1 << 18)
163
164
165void omap1510_udc_irq(void);
166void omap1510_udc_noniso_irq(void);
167
168
169/* Higher level functions for abstracting away from specific device */
170void udc_endpoint_write(struct usb_endpoint_instance *endpoint);
171
172int udc_init (void);
173
174void udc_enable(struct usb_device_instance *device);
175void udc_disable(void);
176
177void udc_connect(void);
178void udc_disconnect(void);
179
180void udc_startup_events(struct usb_device_instance *device);
181void udc_setup_ep(struct usb_device_instance *device, unsigned int ep, struct usb_endpoint_instance *endpoint);
182
183#endif