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Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +02001/*
2 * URB OHCI HCD (Host Controller Driver) for USB.
3 *
4 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
5 * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net>
6 *
7 * usb-ohci.h
8 */
9
Becky Brucea5496a12010-06-30 13:05:44 -050010/*
11 * e.g. PCI controllers need this
12 */
13#ifdef CONFIG_SYS_OHCI_SWAP_REG_ACCESS
14# define ohci_readl(a) __swap_32(*((volatile u32 *)(a)))
15# define ohci_writel(a, b) (*((volatile u32 *)(b)) = __swap_32((volatile u32)a))
16#else
17# define ohci_readl(a) (*((volatile u32 *)(a)))
18# define ohci_writel(a, b) (*((volatile u32 *)(b)) = ((volatile u32)a))
19#endif /* CONFIG_SYS_OHCI_SWAP_REG_ACCESS */
20
Hans de Goede8d005ef2015-05-05 23:56:13 +020021#if defined CONFIG_DM_USB && ARCH_DMA_MINALIGN > 16
22#define ED_ALIGNMENT ARCH_DMA_MINALIGN
23#else
24#define ED_ALIGNMENT 16
25#endif
26
27#if defined CONFIG_DM_USB && ARCH_DMA_MINALIGN > 32
28#define TD_ALIGNMENT ARCH_DMA_MINALIGN
29#else
30#define TD_ALIGNMENT 32
31#endif
32
Wolfgang Denk99d70e32006-06-26 11:06:00 +020033/* functions for doing board or CPU specific setup/cleanup */
Mateusz Zalega16297cf2013-10-04 19:22:26 +020034int usb_board_stop(void);
Markus Klotzbuecher24e37642006-05-23 10:33:11 +020035
Mateusz Zalega16297cf2013-10-04 19:22:26 +020036int usb_cpu_init(void);
37int usb_cpu_stop(void);
38int usb_cpu_init_fail(void);
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +020039
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +020040/* ED States */
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +020041#define ED_NEW 0x00
42#define ED_UNLINK 0x01
43#define ED_OPER 0x02
44#define ED_DEL 0x04
45#define ED_URB_DEL 0x08
46
47/* usb_ohci_ed */
48struct ed {
49 __u32 hwINFO;
50 __u32 hwTailP;
51 __u32 hwHeadP;
52 __u32 hwNextED;
53
54 struct ed *ed_prev;
55 __u8 int_period;
56 __u8 int_branch;
57 __u8 int_load;
58 __u8 int_interval;
59 __u8 state;
60 __u8 type;
61 __u16 last_iso;
62 struct ed *ed_rm_list;
63
64 struct usb_device *usb_dev;
Zhang Wei4dae14c2007-06-06 10:08:14 +020065 void *purb;
66 __u32 unused[2];
Hans de Goede8d005ef2015-05-05 23:56:13 +020067} __attribute__((aligned(ED_ALIGNMENT)));
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +020068typedef struct ed ed_t;
69
70
71/* TD info field */
72#define TD_CC 0xf0000000
73#define TD_CC_GET(td_p) ((td_p >>28) & 0x0f)
74#define TD_CC_SET(td_p, cc) (td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)
75#define TD_EC 0x0C000000
76#define TD_T 0x03000000
77#define TD_T_DATA0 0x02000000
78#define TD_T_DATA1 0x03000000
79#define TD_T_TOGGLE 0x00000000
80#define TD_R 0x00040000
81#define TD_DI 0x00E00000
82#define TD_DI_SET(X) (((X) & 0x07)<< 21)
83#define TD_DP 0x00180000
84#define TD_DP_SETUP 0x00000000
85#define TD_DP_IN 0x00100000
86#define TD_DP_OUT 0x00080000
87
88#define TD_ISO 0x00010000
89#define TD_DEL 0x00020000
90
91/* CC Codes */
92#define TD_CC_NOERROR 0x00
93#define TD_CC_CRC 0x01
94#define TD_CC_BITSTUFFING 0x02
95#define TD_CC_DATATOGGLEM 0x03
96#define TD_CC_STALL 0x04
97#define TD_DEVNOTRESP 0x05
98#define TD_PIDCHECKFAIL 0x06
99#define TD_UNEXPECTEDPID 0x07
100#define TD_DATAOVERRUN 0x08
101#define TD_DATAUNDERRUN 0x09
102#define TD_BUFFEROVERRUN 0x0C
103#define TD_BUFFERUNDERRUN 0x0D
104#define TD_NOTACCESSED 0x0F
105
106
107#define MAXPSW 1
108
109struct td {
110 __u32 hwINFO;
111 __u32 hwCBP; /* Current Buffer Pointer */
112 __u32 hwNextTD; /* Next TD Pointer */
113 __u32 hwBE; /* Memory Buffer End Pointer */
114
Markus Klotzbuecher53e336e2006-11-27 11:43:09 +0100115/* #ifndef CONFIG_MPC5200 /\* this seems wrong *\/ */
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200116 __u16 hwPSW[MAXPSW];
Markus Klotzbuecher53e336e2006-11-27 11:43:09 +0100117/* #endif */
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200118 __u8 unused;
119 __u8 index;
120 struct ed *ed;
121 struct td *next_dl_td;
122 struct usb_device *usb_dev;
123 int transfer_len;
124 __u32 data;
125
126 __u32 unused2[2];
Hans de Goede8d005ef2015-05-05 23:56:13 +0200127} __attribute__((aligned(TD_ALIGNMENT)));
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200128typedef struct td td_t;
129
130#define OHCI_ED_SKIP (1 << 14)
131
132/*
133 * The HCCA (Host Controller Communications Area) is a 256 byte
134 * structure defined in the OHCI spec. that the host controller is
135 * told the base address of. It must be 256-byte aligned.
136 */
137
138#define NUM_INTS 32 /* part of the OHCI standard */
139struct ohci_hcca {
140 __u32 int_table[NUM_INTS]; /* Interrupt ED table */
Markus Klotzbuecher53e336e2006-11-27 11:43:09 +0100141#if defined(CONFIG_MPC5200)
142 __u16 pad1; /* set to 0 on each frame_no change */
143 __u16 frame_no; /* current frame number */
144#else
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200145 __u16 frame_no; /* current frame number */
146 __u16 pad1; /* set to 0 on each frame_no change */
Markus Klotzbuecher53e336e2006-11-27 11:43:09 +0100147#endif
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200148 __u32 done_head; /* info returned for an interrupt */
149 u8 reserved_for_hc[116];
Peter Tyserf9a109b2009-04-20 11:08:46 -0500150} __attribute__((aligned(256)));
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200151
152
153/*
154 * Maximum number of root hub ports.
155 */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200156#ifndef CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS
157# error "CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS undefined!"
Markus Klotzbuecher53e336e2006-11-27 11:43:09 +0100158#endif
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200159
160/*
161 * This is the structure of the OHCI controller's memory mapped I/O
Becky Brucea5496a12010-06-30 13:05:44 -0500162 * region. This is Memory Mapped I/O. You must use the ohci_readl() and
163 * ohci_writel() macros defined in this file to access these!!
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200164 */
165struct ohci_regs {
166 /* control and status registers */
167 __u32 revision;
168 __u32 control;
169 __u32 cmdstatus;
170 __u32 intrstatus;
171 __u32 intrenable;
172 __u32 intrdisable;
173 /* memory pointers */
174 __u32 hcca;
175 __u32 ed_periodcurrent;
176 __u32 ed_controlhead;
177 __u32 ed_controlcurrent;
178 __u32 ed_bulkhead;
179 __u32 ed_bulkcurrent;
180 __u32 donehead;
181 /* frame counters */
182 __u32 fminterval;
183 __u32 fmremaining;
184 __u32 fmnumber;
185 __u32 periodicstart;
186 __u32 lsthresh;
187 /* Root hub ports */
188 struct ohci_roothub_regs {
189 __u32 a;
190 __u32 b;
191 __u32 status;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200192 __u32 portstatus[CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS];
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200193 } roothub;
Peter Tyserf9a109b2009-04-20 11:08:46 -0500194} __attribute__((aligned(32)));
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200195
Yuri Tikhonove90fb6a2008-09-04 11:19:05 +0200196/* Some EHCI controls */
197#define EHCI_USBCMD_OFF 0x20
198#define EHCI_USBCMD_HCRESET (1 << 1)
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200199
200/* OHCI CONTROL AND STATUS REGISTER MASKS */
201
202/*
203 * HcControl (control) register masks
204 */
205#define OHCI_CTRL_CBSR (3 << 0) /* control/bulk service ratio */
206#define OHCI_CTRL_PLE (1 << 2) /* periodic list enable */
207#define OHCI_CTRL_IE (1 << 3) /* isochronous enable */
208#define OHCI_CTRL_CLE (1 << 4) /* control list enable */
209#define OHCI_CTRL_BLE (1 << 5) /* bulk list enable */
210#define OHCI_CTRL_HCFS (3 << 6) /* host controller functional state */
211#define OHCI_CTRL_IR (1 << 8) /* interrupt routing */
212#define OHCI_CTRL_RWC (1 << 9) /* remote wakeup connected */
213#define OHCI_CTRL_RWE (1 << 10) /* remote wakeup enable */
214
215/* pre-shifted values for HCFS */
216# define OHCI_USB_RESET (0 << 6)
217# define OHCI_USB_RESUME (1 << 6)
218# define OHCI_USB_OPER (2 << 6)
219# define OHCI_USB_SUSPEND (3 << 6)
220
221/*
222 * HcCommandStatus (cmdstatus) register masks
223 */
224#define OHCI_HCR (1 << 0) /* host controller reset */
225#define OHCI_CLF (1 << 1) /* control list filled */
226#define OHCI_BLF (1 << 2) /* bulk list filled */
227#define OHCI_OCR (1 << 3) /* ownership change request */
228#define OHCI_SOC (3 << 16) /* scheduling overrun count */
229
230/*
231 * masks used with interrupt registers:
232 * HcInterruptStatus (intrstatus)
233 * HcInterruptEnable (intrenable)
234 * HcInterruptDisable (intrdisable)
235 */
236#define OHCI_INTR_SO (1 << 0) /* scheduling overrun */
237#define OHCI_INTR_WDH (1 << 1) /* writeback of done_head */
238#define OHCI_INTR_SF (1 << 2) /* start frame */
239#define OHCI_INTR_RD (1 << 3) /* resume detect */
240#define OHCI_INTR_UE (1 << 4) /* unrecoverable error */
241#define OHCI_INTR_FNO (1 << 5) /* frame number overflow */
242#define OHCI_INTR_RHSC (1 << 6) /* root hub status change */
243#define OHCI_INTR_OC (1 << 30) /* ownership change */
244#define OHCI_INTR_MIE (1 << 31) /* master interrupt enable */
245
246
247/* Virtual Root HUB */
248struct virt_root_hub {
249 int devnum; /* Address of Root Hub endpoint */
250 void *dev; /* was urb */
251 void *int_addr;
252 int send;
253 int interval;
254};
255
256/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */
257
258/* destination of request */
259#define RH_INTERFACE 0x01
260#define RH_ENDPOINT 0x02
261#define RH_OTHER 0x03
262
263#define RH_CLASS 0x20
264#define RH_VENDOR 0x40
265
266/* Requests: bRequest << 8 | bmRequestType */
267#define RH_GET_STATUS 0x0080
268#define RH_CLEAR_FEATURE 0x0100
269#define RH_SET_FEATURE 0x0300
270#define RH_SET_ADDRESS 0x0500
271#define RH_GET_DESCRIPTOR 0x0680
272#define RH_SET_DESCRIPTOR 0x0700
273#define RH_GET_CONFIGURATION 0x0880
274#define RH_SET_CONFIGURATION 0x0900
275#define RH_GET_STATE 0x0280
276#define RH_GET_INTERFACE 0x0A80
277#define RH_SET_INTERFACE 0x0B00
278#define RH_SYNC_FRAME 0x0C80
279/* Our Vendor Specific Request */
280#define RH_SET_EP 0x2000
281
282
283/* Hub port features */
284#define RH_PORT_CONNECTION 0x00
285#define RH_PORT_ENABLE 0x01
286#define RH_PORT_SUSPEND 0x02
287#define RH_PORT_OVER_CURRENT 0x03
288#define RH_PORT_RESET 0x04
289#define RH_PORT_POWER 0x08
290#define RH_PORT_LOW_SPEED 0x09
291
292#define RH_C_PORT_CONNECTION 0x10
293#define RH_C_PORT_ENABLE 0x11
294#define RH_C_PORT_SUSPEND 0x12
295#define RH_C_PORT_OVER_CURRENT 0x13
296#define RH_C_PORT_RESET 0x14
297
298/* Hub features */
299#define RH_C_HUB_LOCAL_POWER 0x00
300#define RH_C_HUB_OVER_CURRENT 0x01
301
302#define RH_DEVICE_REMOTE_WAKEUP 0x00
303#define RH_ENDPOINT_STALL 0x01
304
305#define RH_ACK 0x01
306#define RH_REQ_ERR -1
307#define RH_NACK 0x00
308
309
310/* OHCI ROOT HUB REGISTER MASKS */
311
312/* roothub.portstatus [i] bits */
313#define RH_PS_CCS 0x00000001 /* current connect status */
314#define RH_PS_PES 0x00000002 /* port enable status*/
315#define RH_PS_PSS 0x00000004 /* port suspend status */
316#define RH_PS_POCI 0x00000008 /* port over current indicator */
317#define RH_PS_PRS 0x00000010 /* port reset status */
318#define RH_PS_PPS 0x00000100 /* port power status */
319#define RH_PS_LSDA 0x00000200 /* low speed device attached */
320#define RH_PS_CSC 0x00010000 /* connect status change */
321#define RH_PS_PESC 0x00020000 /* port enable status change */
322#define RH_PS_PSSC 0x00040000 /* port suspend status change */
323#define RH_PS_OCIC 0x00080000 /* over current indicator change */
324#define RH_PS_PRSC 0x00100000 /* port reset status change */
325
326/* roothub.status bits */
327#define RH_HS_LPS 0x00000001 /* local power status */
328#define RH_HS_OCI 0x00000002 /* over current indicator */
329#define RH_HS_DRWE 0x00008000 /* device remote wakeup enable */
330#define RH_HS_LPSC 0x00010000 /* local power status change */
331#define RH_HS_OCIC 0x00020000 /* over current indicator change */
332#define RH_HS_CRWE 0x80000000 /* clear remote wakeup enable */
333
334/* roothub.b masks */
335#define RH_B_DR 0x0000ffff /* device removable flags */
336#define RH_B_PPCM 0xffff0000 /* port power control mask */
337
338/* roothub.a masks */
339#define RH_A_NDP (0xff << 0) /* number of downstream ports */
340#define RH_A_PSM (1 << 8) /* power switching mode */
341#define RH_A_NPS (1 << 9) /* no power switching */
342#define RH_A_DT (1 << 10) /* device type (mbz) */
343#define RH_A_OCPM (1 << 11) /* over current protection mode */
344#define RH_A_NOCP (1 << 12) /* no over current protection */
345#define RH_A_POTPGT (0xff << 24) /* power on to power good time */
346
347/* urb */
348#define N_URB_TD 48
349typedef struct
350{
351 ed_t *ed;
352 __u16 length; /* number of tds associated with this request */
353 __u16 td_cnt; /* number of tds already serviced */
Zhang Wei4dae14c2007-06-06 10:08:14 +0200354 struct usb_device *dev;
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200355 int state;
356 unsigned long pipe;
Zhang Wei4dae14c2007-06-06 10:08:14 +0200357 void *transfer_buffer;
358 int transfer_buffer_length;
359 int interval;
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200360 int actual_length;
Zhang Wei4dae14c2007-06-06 10:08:14 +0200361 int finished;
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200362 td_t *td[N_URB_TD]; /* list pointer to all corresponding TDs associated with this request */
363} urb_priv_t;
364#define URB_DEL 1
365
Hans de Goede19d95d52015-05-05 23:56:08 +0200366#define NUM_EDS 8 /* num of preallocated endpoint descriptors */
367
Hans de Goede3c5497d2015-05-05 23:56:09 +0200368#define NUM_TD 64 /* we need more TDs than EDs */
369
Hans de Goede44dbc332015-05-13 14:42:15 +0200370#define NUM_INT_DEVS 8 /* num of ohci_dev structs for int endpoints */
371
Hans de Goede19d95d52015-05-05 23:56:08 +0200372typedef struct ohci_device {
Hans de Goede8d005ef2015-05-05 23:56:13 +0200373 ed_t ed[NUM_EDS] __aligned(ED_ALIGNMENT);
374 td_t tds[NUM_TD] __aligned(TD_ALIGNMENT);
Hans de Goede19d95d52015-05-05 23:56:08 +0200375 int ed_cnt;
Hans de Goede44dbc332015-05-13 14:42:15 +0200376 int devnum;
Hans de Goede19d95d52015-05-05 23:56:08 +0200377} ohci_dev_t;
378
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200379/*
380 * This is the full ohci controller description
381 *
382 * Note how the "proper" USB information is just
383 * a subset of what the full implementation needs. (Linus)
384 */
385
386
387typedef struct ohci {
Hans de Goede19d95d52015-05-05 23:56:08 +0200388 /* this allocates EDs for all possible endpoints */
Hans de Goede8d005ef2015-05-05 23:56:13 +0200389 struct ohci_device ohci_dev __aligned(TD_ALIGNMENT);
Hans de Goede44dbc332015-05-13 14:42:15 +0200390 struct ohci_device int_dev[NUM_INT_DEVS] __aligned(TD_ALIGNMENT);
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200391 struct ohci_hcca *hcca; /* hcca */
392 /*dma_addr_t hcca_dma;*/
393
394 int irq;
395 int disabled; /* e.g. got a UE, we're hung */
396 int sleeping;
397 unsigned long flags; /* for HC bugs */
398
399 struct ohci_regs *regs; /* OHCI controller's memory */
400
Zhang Wei4dae14c2007-06-06 10:08:14 +0200401 int ohci_int_load[32]; /* load of the 32 Interrupt Chains (for load balancing)*/
Markus Klotzbuecher3e326ec2006-05-22 16:33:54 +0200402 ed_t *ed_rm_list[2]; /* lists of all endpoints to be removed */
403 ed_t *ed_bulktail; /* last endpoint of bulk list */
404 ed_t *ed_controltail; /* last endpoint of control list */
405 int intrstatus;
406 __u32 hc_control; /* copy of the hc control reg */
407 struct usb_device *dev[32];
408 struct virt_root_hub rh;
409
410 const char *slot_name;
411} ohci_t;
Hans de Goede58b40482015-05-10 14:10:25 +0200412
413#ifdef CONFIG_DM_USB
414extern struct dm_usb_ops ohci_usb_ops;
415
416int ohci_register(struct udevice *dev, struct ohci_regs *regs);
417int ohci_deregister(struct udevice *dev);
418#endif