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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/usb/gadget/omap_udc.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/usb/gadget/omap_udc.h')
-rw-r--r--drivers/usb/gadget/omap_udc.h208
1 files changed, 208 insertions, 0 deletions
diff --git a/drivers/usb/gadget/omap_udc.h b/drivers/usb/gadget/omap_udc.h
new file mode 100644
index 000000000000..c9e68541622c
--- /dev/null
+++ b/drivers/usb/gadget/omap_udc.h
@@ -0,0 +1,208 @@
1/*
2 * omap_udc.h -- for omap 3.2 udc, with OTG support
3 *
4 * 2004 (C) Texas Instruments, Inc.
5 * 2004 (C) David Brownell
6 */
7
8/*
9 * USB device/endpoint management registers
10 */
11#define UDC_REG(offset) __REG16(UDC_BASE + (offset))
12
13#define UDC_REV_REG UDC_REG(0x0) /* Revision */
14#define UDC_EP_NUM_REG UDC_REG(0x4) /* Which endpoint */
15# define UDC_SETUP_SEL (1 << 6)
16# define UDC_EP_SEL (1 << 5)
17# define UDC_EP_DIR (1 << 4)
18 /* low 4 bits for endpoint number */
19#define UDC_DATA_REG UDC_REG(0x08) /* Endpoint FIFO */
20#define UDC_CTRL_REG UDC_REG(0x0C) /* Endpoint control */
21# define UDC_CLR_HALT (1 << 7)
22# define UDC_SET_HALT (1 << 6)
23# define UDC_SET_FIFO_EN (1 << 2)
24# define UDC_CLR_EP (1 << 1)
25# define UDC_RESET_EP (1 << 0)
26#define UDC_STAT_FLG_REG UDC_REG(0x10) /* Endpoint status */
27# define UDC_NO_RXPACKET (1 << 15)
28# define UDC_MISS_IN (1 << 14)
29# define UDC_DATA_FLUSH (1 << 13)
30# define UDC_ISO_ERR (1 << 12)
31# define UDC_ISO_FIFO_EMPTY (1 << 9)
32# define UDC_ISO_FIFO_FULL (1 << 8)
33# define UDC_EP_HALTED (1 << 6)
34# define UDC_STALL (1 << 5)
35# define UDC_NAK (1 << 4)
36# define UDC_ACK (1 << 3)
37# define UDC_FIFO_EN (1 << 2)
38# define UDC_NON_ISO_FIFO_EMPTY (1 << 1)
39# define UDC_NON_ISO_FIFO_FULL (1 << 0)
40#define UDC_RXFSTAT_REG UDC_REG(0x14) /* OUT bytecount */
41#define UDC_SYSCON1_REG UDC_REG(0x18) /* System config 1 */
42# define UDC_CFG_LOCK (1 << 8)
43# define UDC_DATA_ENDIAN (1 << 7)
44# define UDC_DMA_ENDIAN (1 << 6)
45# define UDC_NAK_EN (1 << 4)
46# define UDC_AUTODECODE_DIS (1 << 3)
47# define UDC_SELF_PWR (1 << 2)
48# define UDC_SOFF_DIS (1 << 1)
49# define UDC_PULLUP_EN (1 << 0)
50#define UDC_SYSCON2_REG UDC_REG(0x1C) /* System config 2 */
51# define UDC_RMT_WKP (1 << 6)
52# define UDC_STALL_CMD (1 << 5)
53# define UDC_DEV_CFG (1 << 3)
54# define UDC_CLR_CFG (1 << 2)
55#define UDC_DEVSTAT_REG UDC_REG(0x20) /* Device status */
56# define UDC_B_HNP_ENABLE (1 << 9)
57# define UDC_A_HNP_SUPPORT (1 << 8)
58# define UDC_A_ALT_HNP_SUPPORT (1 << 7)
59# define UDC_R_WK_OK (1 << 6)
60# define UDC_USB_RESET (1 << 5)
61# define UDC_SUS (1 << 4)
62# define UDC_CFG (1 << 3)
63# define UDC_ADD (1 << 2)
64# define UDC_DEF (1 << 1)
65# define UDC_ATT (1 << 0)
66#define UDC_SOF_REG UDC_REG(0x24) /* Start of frame */
67# define UDC_FT_LOCK (1 << 12)
68# define UDC_TS_OK (1 << 11)
69# define UDC_TS 0x03ff
70#define UDC_IRQ_EN_REG UDC_REG(0x28) /* Interrupt enable */
71# define UDC_SOF_IE (1 << 7)
72# define UDC_EPN_RX_IE (1 << 5)
73# define UDC_EPN_TX_IE (1 << 4)
74# define UDC_DS_CHG_IE (1 << 3)
75# define UDC_EP0_IE (1 << 0)
76#define UDC_DMA_IRQ_EN_REG UDC_REG(0x2C) /* DMA irq enable */
77 /* rx/tx dma channels numbered 1-3 not 0-2 */
78# define UDC_TX_DONE_IE(n) (1 << (4 * (n) - 2))
79# define UDC_RX_CNT_IE(n) (1 << (4 * (n) - 3))
80# define UDC_RX_EOT_IE(n) (1 << (4 * (n) - 4))
81#define UDC_IRQ_SRC_REG UDC_REG(0x30) /* Interrupt source */
82# define UDC_TXN_DONE (1 << 10)
83# define UDC_RXN_CNT (1 << 9)
84# define UDC_RXN_EOT (1 << 8)
85# define UDC_SOF (1 << 7)
86# define UDC_EPN_RX (1 << 5)
87# define UDC_EPN_TX (1 << 4)
88# define UDC_DS_CHG (1 << 3)
89# define UDC_SETUP (1 << 2)
90# define UDC_EP0_RX (1 << 1)
91# define UDC_EP0_TX (1 << 0)
92# define UDC_IRQ_SRC_MASK 0x7bf
93#define UDC_EPN_STAT_REG UDC_REG(0x34) /* EP irq status */
94#define UDC_DMAN_STAT_REG UDC_REG(0x38) /* DMA irq status */
95# define UDC_DMA_RX_SB (1 << 12)
96# define UDC_DMA_RX_SRC(x) (((x)>>8) & 0xf)
97# define UDC_DMA_TX_SRC(x) (((x)>>0) & 0xf)
98
99
100/* DMA configuration registers: up to three channels in each direction. */
101#define UDC_RXDMA_CFG_REG UDC_REG(0x40) /* 3 eps for RX DMA */
102#define UDC_TXDMA_CFG_REG UDC_REG(0x44) /* 3 eps for TX DMA */
103#define UDC_DATA_DMA_REG UDC_REG(0x48) /* rx/tx fifo addr */
104
105/* rx/tx dma control, numbering channels 1-3 not 0-2 */
106#define UDC_TXDMA_REG(chan) UDC_REG(0x50 - 4 + 4 * (chan))
107# define UDC_TXN_EOT (1 << 15) /* bytes vs packets */
108# define UDC_TXN_START (1 << 14) /* start transfer */
109# define UDC_TXN_TSC 0x03ff /* units in xfer */
110#define UDC_RXDMA_REG(chan) UDC_REG(0x60 - 4 + 4 * (chan))
111# define UDC_RXN_STOP (1 << 15) /* enable EOT irq */
112# define UDC_RXN_TC 0x00ff /* packets in xfer */
113
114
115/*
116 * Endpoint configuration registers (used before CFG_LOCK is set)
117 * UDC_EP_TX_REG(0) is unused
118 */
119#define UDC_EP_RX_REG(endpoint) UDC_REG(0x80 + (endpoint)*4)
120# define UDC_EPN_RX_VALID (1 << 15)
121# define UDC_EPN_RX_DB (1 << 14)
122 /* buffer size in bits 13, 12 */
123# define UDC_EPN_RX_ISO (1 << 11)
124 /* buffer pointer in low 11 bits */
125#define UDC_EP_TX_REG(endpoint) UDC_REG(0xc0 + (endpoint)*4)
126 /* same bitfields as in RX_REG */
127
128/*-------------------------------------------------------------------------*/
129
130struct omap_req {
131 struct usb_request req;
132 struct list_head queue;
133 unsigned dma_bytes;
134 unsigned mapped:1;
135};
136
137struct omap_ep {
138 struct usb_ep ep;
139 struct list_head queue;
140 unsigned long irqs;
141 struct list_head iso;
142 const struct usb_endpoint_descriptor *desc;
143 char name[14];
144 u16 maxpacket;
145 u8 bEndpointAddress;
146 u8 bmAttributes;
147 unsigned double_buf:1;
148 unsigned stopped:1;
149 unsigned fnf:1;
150 unsigned has_dma:1;
151 u8 ackwait;
152 u8 dma_channel;
153 u16 dma_counter;
154 int lch;
155 struct omap_udc *udc;
156 struct timer_list timer;
157};
158
159struct omap_udc {
160 struct usb_gadget gadget;
161 struct usb_gadget_driver *driver;
162 spinlock_t lock;
163 struct omap_ep ep[32];
164 u16 devstat;
165 struct otg_transceiver *transceiver;
166 struct list_head iso;
167 unsigned softconnect:1;
168 unsigned vbus_active:1;
169 unsigned ep0_pending:1;
170 unsigned ep0_in:1;
171 unsigned ep0_set_config:1;
172 unsigned ep0_reset_config:1;
173 unsigned ep0_setup:1;
174
175 struct completion *done;
176};
177
178/*-------------------------------------------------------------------------*/
179
180#ifdef DEBUG
181#define DBG(stuff...) printk(KERN_DEBUG "udc: " stuff)
182#else
183#define DBG(stuff...) do{}while(0)
184#endif
185
186#ifdef VERBOSE
187# define VDBG DBG
188#else
189# define VDBG(stuff...) do{}while(0)
190#endif
191
192#define ERR(stuff...) printk(KERN_ERR "udc: " stuff)
193#define WARN(stuff...) printk(KERN_WARNING "udc: " stuff)
194#define INFO(stuff...) printk(KERN_INFO "udc: " stuff)
195
196/*-------------------------------------------------------------------------*/
197
198#define MOD_CONF_CTRL_0_REG __REG32(MOD_CONF_CTRL_0)
199#define VBUS_W2FC_1510 (1 << 17) /* 0 gpio0, 1 dvdd2 pin */
200
201#define FUNC_MUX_CTRL_0_REG __REG32(FUNC_MUX_CTRL_0)
202#define VBUS_CTRL_1510 (1 << 19) /* 1 connected (software) */
203#define VBUS_MODE_1510 (1 << 18) /* 0 hardware, 1 software */
204
205#define HMC_1510 ((MOD_CONF_CTRL_0_REG >> 1) & 0x3f)
206#define HMC_1610 (OTG_SYSCON_2_REG & 0x3f)
207#define HMC (cpu_is_omap15xx() ? HMC_1510 : HMC_1610)
208