wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2001 |
| 3 | * Denis Peter, MPL AG Switzerland |
| 4 | * |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 5 | * Adapted for U-Boot driver model |
| 6 | * (C) Copyright 2015 Google, Inc |
| 7 | * |
Wolfgang Denk | 1a45966 | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 8 | * SPDX-License-Identifier: GPL-2.0+ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 9 | * Note: Part of this code has been derived from linux |
| 10 | * |
| 11 | */ |
| 12 | #ifndef _USB_H_ |
| 13 | #define _USB_H_ |
| 14 | |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 15 | #include <fdtdec.h> |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 16 | #include <usb_defs.h> |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 17 | #include <linux/usb/ch9.h> |
Masahiro Yamada | a8c2ebc | 2014-11-07 18:34:55 +0900 | [diff] [blame] | 18 | #include <asm/cache.h> |
| 19 | #include <part.h> |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 20 | |
Tom Rini | 71c5de4 | 2012-07-15 22:14:24 +0000 | [diff] [blame] | 21 | /* |
| 22 | * The EHCI spec says that we must align to at least 32 bytes. However, |
| 23 | * some platforms require larger alignment. |
| 24 | */ |
| 25 | #if ARCH_DMA_MINALIGN > 32 |
| 26 | #define USB_DMA_MINALIGN ARCH_DMA_MINALIGN |
| 27 | #else |
| 28 | #define USB_DMA_MINALIGN 32 |
| 29 | #endif |
| 30 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 31 | /* Everything is aribtrary */ |
wdenk | 5cf91d6 | 2004-04-23 20:32:05 +0000 | [diff] [blame] | 32 | #define USB_ALTSETTINGALLOC 4 |
| 33 | #define USB_MAXALTSETTING 128 /* Hard limit */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 34 | |
wdenk | 5cf91d6 | 2004-04-23 20:32:05 +0000 | [diff] [blame] | 35 | #define USB_MAX_DEVICE 32 |
| 36 | #define USB_MAXCONFIG 8 |
| 37 | #define USB_MAXINTERFACES 8 |
| 38 | #define USB_MAXENDPOINTS 16 |
| 39 | #define USB_MAXCHILDREN 8 /* This is arbitrary */ |
| 40 | #define USB_MAX_HUB 16 |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 41 | |
| 42 | #define USB_CNTL_TIMEOUT 100 /* 100ms timeout */ |
| 43 | |
Simon Glass | 96820a3 | 2011-02-07 14:42:16 -0800 | [diff] [blame] | 44 | /* |
| 45 | * This is the timeout to allow for submitting an urb in ms. We allow more |
| 46 | * time for a BULK device to react - some are slow. |
| 47 | */ |
Jason Cooper | 80b350a | 2011-07-31 20:09:58 +0000 | [diff] [blame] | 48 | #define USB_TIMEOUT_MS(pipe) (usb_pipebulk(pipe) ? 5000 : 1000) |
Simon Glass | 96820a3 | 2011-02-07 14:42:16 -0800 | [diff] [blame] | 49 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 50 | /* device request (setup) */ |
| 51 | struct devrequest { |
Sergey Temerkhanov | b12242a | 2015-04-01 17:18:44 +0300 | [diff] [blame] | 52 | __u8 requesttype; |
| 53 | __u8 request; |
| 54 | __le16 value; |
| 55 | __le16 index; |
| 56 | __le16 length; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 57 | } __attribute__ ((packed)); |
| 58 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 59 | /* Interface */ |
| 60 | struct usb_interface { |
| 61 | struct usb_interface_descriptor desc; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 62 | |
Sergey Temerkhanov | b12242a | 2015-04-01 17:18:44 +0300 | [diff] [blame] | 63 | __u8 no_of_ep; |
| 64 | __u8 num_altsetting; |
| 65 | __u8 act_altsetting; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 66 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 67 | struct usb_endpoint_descriptor ep_desc[USB_MAXENDPOINTS]; |
Vivek Gautam | 6497c66 | 2013-04-12 16:34:38 +0530 | [diff] [blame] | 68 | /* |
| 69 | * Super Speed Device will have Super Speed Endpoint |
| 70 | * Companion Descriptor (section 9.6.7 of usb 3.0 spec) |
| 71 | * Revision 1.0 June 6th 2011 |
| 72 | */ |
| 73 | struct usb_ss_ep_comp_descriptor ss_ep_comp_desc[USB_MAXENDPOINTS]; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 74 | } __attribute__ ((packed)); |
| 75 | |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 76 | /* Configuration information.. */ |
| 77 | struct usb_config { |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 78 | struct usb_config_descriptor desc; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 79 | |
Sergey Temerkhanov | b12242a | 2015-04-01 17:18:44 +0300 | [diff] [blame] | 80 | __u8 no_of_if; /* number of interfaces */ |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 81 | struct usb_interface if_desc[USB_MAXINTERFACES]; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 82 | } __attribute__ ((packed)); |
| 83 | |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 84 | enum { |
| 85 | /* Maximum packet size; encoded as 0,1,2,3 = 8,16,32,64 */ |
| 86 | PACKET_SIZE_8 = 0, |
| 87 | PACKET_SIZE_16 = 1, |
| 88 | PACKET_SIZE_32 = 2, |
| 89 | PACKET_SIZE_64 = 3, |
| 90 | }; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 91 | |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 92 | /** |
| 93 | * struct usb_device - information about a USB device |
| 94 | * |
| 95 | * With driver model both UCLASS_USB (the USB controllers) and UCLASS_USB_HUB |
| 96 | * (the hubs) have this as parent data. Hubs are children of controllers or |
| 97 | * other hubs and there is always a single root hub for each controller. |
| 98 | * Therefore struct usb_device can always be accessed with |
| 99 | * dev_get_parentdata(dev), where dev is a USB device. |
| 100 | * |
| 101 | * Pointers exist for obtaining both the device (could be any uclass) and |
| 102 | * controller (UCLASS_USB) from this structure. The controller does not have |
| 103 | * a struct usb_device since it is not a device. |
| 104 | */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 105 | struct usb_device { |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 106 | int devnum; /* Device number on USB bus */ |
Michael Trimarchi | 3e12648 | 2008-11-28 13:19:19 +0100 | [diff] [blame] | 107 | int speed; /* full/low/high */ |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 108 | char mf[32]; /* manufacturer */ |
| 109 | char prod[32]; /* product */ |
| 110 | char serial[32]; /* serial number */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 111 | |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 112 | /* Maximum packet size; one of: PACKET_SIZE_* */ |
| 113 | int maxpacketsize; |
| 114 | /* one bit for each endpoint ([0] = IN, [1] = OUT) */ |
| 115 | unsigned int toggle[2]; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 116 | /* endpoint halts; one bit per endpoint # & direction; |
| 117 | * [0] = IN, [1] = OUT |
| 118 | */ |
Remy Bohmer | 4886720 | 2008-10-10 10:23:21 +0200 | [diff] [blame] | 119 | unsigned int halted[2]; |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 120 | int epmaxpacketin[16]; /* INput endpoint specific maximums */ |
| 121 | int epmaxpacketout[16]; /* OUTput endpoint specific maximums */ |
| 122 | |
| 123 | int configno; /* selected config number */ |
Puneet Saxena | f576613 | 2012-04-03 14:56:06 +0530 | [diff] [blame] | 124 | /* Device Descriptor */ |
| 125 | struct usb_device_descriptor descriptor |
| 126 | __attribute__((aligned(ARCH_DMA_MINALIGN))); |
Tom Rix | 8f8bd56 | 2009-10-31 12:37:38 -0500 | [diff] [blame] | 127 | struct usb_config config; /* config descriptor */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 128 | |
| 129 | int have_langid; /* whether string_langid is valid yet */ |
| 130 | int string_langid; /* language ID for strings */ |
| 131 | int (*irq_handle)(struct usb_device *dev); |
| 132 | unsigned long irq_status; |
wdenk | 5cf91d6 | 2004-04-23 20:32:05 +0000 | [diff] [blame] | 133 | int irq_act_len; /* transfered bytes */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 134 | void *privptr; |
| 135 | /* |
| 136 | * Child devices - if this is a hub device |
| 137 | * Each instance needs its own set of data structures. |
| 138 | */ |
| 139 | unsigned long status; |
Hans de Goede | 904f2a8 | 2015-01-11 20:34:54 +0100 | [diff] [blame] | 140 | unsigned long int_pending; /* 1 bit per ep, used by int_queue */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 141 | int act_len; /* transfered bytes */ |
| 142 | int maxchild; /* Number of ports if hub */ |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 143 | int portnr; /* Port number, 1=first */ |
| 144 | #ifndef CONFIG_DM_USB |
| 145 | /* parent hub, or NULL if this is the root hub */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 146 | struct usb_device *parent; |
| 147 | struct usb_device *children[USB_MAXCHILDREN]; |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 148 | void *controller; /* hardware controller private data */ |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 149 | #endif |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 150 | /* slot_id - for xHCI enabled devices */ |
| 151 | unsigned int slot_id; |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 152 | #ifdef CONFIG_DM_USB |
| 153 | struct udevice *dev; /* Pointer to associated device */ |
| 154 | struct udevice *controller_dev; /* Pointer to associated controller */ |
| 155 | #endif |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 156 | }; |
| 157 | |
Hans de Goede | 8460b89 | 2014-09-24 14:06:06 +0200 | [diff] [blame] | 158 | struct int_queue; |
| 159 | |
Troy Kisky | bba6791 | 2013-10-10 15:27:55 -0700 | [diff] [blame] | 160 | /* |
| 161 | * You can initialize platform's USB host or device |
| 162 | * ports by passing this enum as an argument to |
| 163 | * board_usb_init(). |
| 164 | */ |
| 165 | enum usb_init_type { |
| 166 | USB_INIT_HOST, |
| 167 | USB_INIT_DEVICE |
| 168 | }; |
| 169 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 170 | /********************************************************************** |
| 171 | * this is how the lowlevel part communicate with the outer world |
| 172 | */ |
| 173 | |
Rodolfo Giometti | 822af35 | 2007-04-03 14:27:18 +0200 | [diff] [blame] | 174 | #if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || \ |
michael | 51ab142 | 2008-12-11 13:43:55 +0100 | [diff] [blame] | 175 | defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_OHCI_NEW) || \ |
Michael Trimarchi | 3e12648 | 2008-11-28 13:19:19 +0100 | [diff] [blame] | 176 | defined(CONFIG_USB_SL811HS) || defined(CONFIG_USB_ISP116X_HCD) || \ |
Tom Rix | f298e4b | 2009-10-31 12:37:41 -0500 | [diff] [blame] | 177 | defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI) || \ |
Bryan Wu | e608f22 | 2009-12-16 22:04:02 -0500 | [diff] [blame] | 178 | defined(CONFIG_USB_OMAP3) || defined(CONFIG_USB_DA8XX) || \ |
Ilya Yanok | 37931f0 | 2012-11-06 13:48:22 +0000 | [diff] [blame] | 179 | defined(CONFIG_USB_BLACKFIN) || defined(CONFIG_USB_AM35X) || \ |
Ilya Yanok | 673a524 | 2012-11-06 13:48:29 +0000 | [diff] [blame] | 180 | defined(CONFIG_USB_MUSB_DSPS) || defined(CONFIG_USB_MUSB_AM35X) || \ |
Hans de Goede | 28a15ef | 2015-01-11 20:34:48 +0100 | [diff] [blame] | 181 | defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined(CONFIG_USB_MUSB_SUNXI) || \ |
Simon Glass | 019808f | 2015-03-25 12:22:37 -0600 | [diff] [blame] | 182 | defined(CONFIG_USB_XHCI) || defined(CONFIG_USB_DWC2) || \ |
| 183 | defined(CONFIG_USB_EMUL) |
Rodolfo Giometti | 822af35 | 2007-04-03 14:27:18 +0200 | [diff] [blame] | 184 | |
Troy Kisky | 06d513e | 2013-10-10 15:27:56 -0700 | [diff] [blame] | 185 | int usb_lowlevel_init(int index, enum usb_init_type init, void **controller); |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 186 | int usb_lowlevel_stop(int index); |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 187 | |
| 188 | #if defined(CONFIG_MUSB_HOST) || defined(CONFIG_DM_USB) |
| 189 | int usb_reset_root_port(void); |
Hans de Goede | 90cdc10 | 2015-01-11 20:34:51 +0100 | [diff] [blame] | 190 | #else |
| 191 | #define usb_reset_root_port() |
| 192 | #endif |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 193 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 194 | int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, |
| 195 | void *buffer, int transfer_len); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 196 | int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer, |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 197 | int transfer_len, struct devrequest *setup); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 198 | int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, |
| 199 | int transfer_len, int interval); |
| 200 | |
Hans de Goede | 8a5f066 | 2015-05-10 14:10:18 +0200 | [diff] [blame] | 201 | #if defined CONFIG_USB_EHCI || defined CONFIG_MUSB_HOST || defined(CONFIG_DM_USB) |
Hans de Goede | 8460b89 | 2014-09-24 14:06:06 +0200 | [diff] [blame] | 202 | struct int_queue *create_int_queue(struct usb_device *dev, unsigned long pipe, |
Hans de Goede | 8bb6c1d | 2015-01-11 20:38:28 +0100 | [diff] [blame] | 203 | int queuesize, int elementsize, void *buffer, int interval); |
Hans de Goede | 8460b89 | 2014-09-24 14:06:06 +0200 | [diff] [blame] | 204 | int destroy_int_queue(struct usb_device *dev, struct int_queue *queue); |
| 205 | void *poll_int_queue(struct usb_device *dev, struct int_queue *queue); |
| 206 | #endif |
| 207 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 208 | /* Defines */ |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 209 | #define USB_UHCI_VEND_ID 0x8086 |
| 210 | #define USB_UHCI_DEV_ID 0x7112 |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 211 | |
Lukasz Dalek | e5f2475 | 2012-10-02 17:04:33 +0200 | [diff] [blame] | 212 | /* |
| 213 | * PXA25x can only act as USB device. There are drivers |
| 214 | * which works with USB CDC gadgets implementations. |
| 215 | * Some of them have common routines which can be used |
| 216 | * in boards init functions e.g. udc_disconnect() used for |
| 217 | * forced device disconnection from host. |
| 218 | */ |
| 219 | #elif defined(CONFIG_USB_GADGET_PXA2XX) |
| 220 | |
| 221 | extern void udc_disconnect(void); |
| 222 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 223 | #endif |
| 224 | |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 225 | /* |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 226 | * board-specific hardware initialization, called by |
| 227 | * usb drivers and u-boot commands |
| 228 | * |
| 229 | * @param index USB controller number |
| 230 | * @param init initializes controller as USB host or device |
| 231 | */ |
Troy Kisky | bba6791 | 2013-10-10 15:27:55 -0700 | [diff] [blame] | 232 | int board_usb_init(int index, enum usb_init_type init); |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 233 | |
| 234 | /* |
| 235 | * can be used to clean up after failed USB initialization attempt |
| 236 | * vide: board_usb_init() |
| 237 | * |
| 238 | * @param index USB controller number for selective cleanup |
Troy Kisky | bba6791 | 2013-10-10 15:27:55 -0700 | [diff] [blame] | 239 | * @param init usb_init_type passed to board_usb_init() |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 240 | */ |
Troy Kisky | bba6791 | 2013-10-10 15:27:55 -0700 | [diff] [blame] | 241 | int board_usb_cleanup(int index, enum usb_init_type init); |
Mateusz Zalega | 16297cf | 2013-10-04 19:22:26 +0200 | [diff] [blame] | 242 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 243 | #ifdef CONFIG_USB_STORAGE |
| 244 | |
| 245 | #define USB_MAX_STOR_DEV 5 |
| 246 | block_dev_desc_t *usb_stor_get_dev(int index); |
| 247 | int usb_stor_scan(int mode); |
Anatolij Gustschin | e813eae | 2008-03-26 17:47:44 +0100 | [diff] [blame] | 248 | int usb_stor_info(void); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 249 | |
| 250 | #endif |
| 251 | |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 252 | #ifdef CONFIG_USB_HOST_ETHER |
| 253 | |
| 254 | #define USB_MAX_ETH_DEV 5 |
| 255 | int usb_host_eth_scan(int mode); |
| 256 | |
| 257 | #endif |
| 258 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 259 | #ifdef CONFIG_USB_KEYBOARD |
| 260 | |
| 261 | int drv_usb_kbd_init(void); |
Hans de Goede | 8a8a225 | 2014-09-20 16:54:38 +0200 | [diff] [blame] | 262 | int usb_kbd_deregister(int force); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 263 | |
| 264 | #endif |
| 265 | /* routines */ |
| 266 | int usb_init(void); /* initialize the USB Controller */ |
| 267 | int usb_stop(void); /* stop the USB Controller */ |
Vincent Palatin | 08f3bb0 | 2015-05-04 11:30:54 -0600 | [diff] [blame] | 268 | int usb_detect_change(void); /* detect if a USB device has been (un)plugged */ |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 269 | |
| 270 | |
| 271 | int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol); |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 272 | int usb_set_idle(struct usb_device *dev, int ifnum, int duration, |
| 273 | int report_id); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 274 | int usb_control_msg(struct usb_device *dev, unsigned int pipe, |
| 275 | unsigned char request, unsigned char requesttype, |
| 276 | unsigned short value, unsigned short index, |
| 277 | void *data, unsigned short size, int timeout); |
| 278 | int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, |
| 279 | void *data, int len, int *actual_length, int timeout); |
| 280 | int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe, |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 281 | void *buffer, int transfer_len, int interval); |
Simon Glass | 89d4836 | 2011-02-16 11:14:33 -0800 | [diff] [blame] | 282 | int usb_disable_asynch(int disable); |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 283 | int usb_maxpacket(struct usb_device *dev, unsigned long pipe); |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 284 | int usb_get_configuration_no(struct usb_device *dev, unsigned char *buffer, |
| 285 | int cfgno); |
| 286 | int usb_get_report(struct usb_device *dev, int ifnum, unsigned char type, |
| 287 | unsigned char id, void *buf, int size); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 288 | int usb_get_class_descriptor(struct usb_device *dev, int ifnum, |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 289 | unsigned char type, unsigned char id, void *buf, |
| 290 | int size); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 291 | int usb_clear_halt(struct usb_device *dev, int pipe); |
| 292 | int usb_string(struct usb_device *dev, int index, char *buf, size_t size); |
| 293 | int usb_set_interface(struct usb_device *dev, int interface, int alternate); |
Vincent Palatin | 08f3bb0 | 2015-05-04 11:30:54 -0600 | [diff] [blame] | 294 | int usb_get_port_status(struct usb_device *dev, int port, void *data); |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 295 | |
| 296 | /* big endian -> little endian conversion */ |
wdenk | 149dded | 2003-09-10 18:20:28 +0000 | [diff] [blame] | 297 | /* some CPUs are already little endian e.g. the ARM920T */ |
Markus Klotzbuecher | ae3b770 | 2006-11-27 11:46:46 +0100 | [diff] [blame] | 298 | #define __swap_16(x) \ |
wdenk | 3f85ce2 | 2004-02-23 16:11:30 +0000 | [diff] [blame] | 299 | ({ unsigned short x_ = (unsigned short)x; \ |
| 300 | (unsigned short)( \ |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 301 | ((x_ & 0x00FFU) << 8) | ((x_ & 0xFF00U) >> 8)); \ |
wdenk | 3f85ce2 | 2004-02-23 16:11:30 +0000 | [diff] [blame] | 302 | }) |
Markus Klotzbuecher | ae3b770 | 2006-11-27 11:46:46 +0100 | [diff] [blame] | 303 | #define __swap_32(x) \ |
wdenk | 3f85ce2 | 2004-02-23 16:11:30 +0000 | [diff] [blame] | 304 | ({ unsigned long x_ = (unsigned long)x; \ |
| 305 | (unsigned long)( \ |
| 306 | ((x_ & 0x000000FFUL) << 24) | \ |
wdenk | 5cf91d6 | 2004-04-23 20:32:05 +0000 | [diff] [blame] | 307 | ((x_ & 0x0000FF00UL) << 8) | \ |
| 308 | ((x_ & 0x00FF0000UL) >> 8) | \ |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 309 | ((x_ & 0xFF000000UL) >> 24)); \ |
wdenk | 3f85ce2 | 2004-02-23 16:11:30 +0000 | [diff] [blame] | 310 | }) |
Markus Klotzbuecher | ae3b770 | 2006-11-27 11:46:46 +0100 | [diff] [blame] | 311 | |
Mike Frysinger | c7d703f | 2009-01-01 18:27:27 -0500 | [diff] [blame] | 312 | #ifdef __LITTLE_ENDIAN |
Markus Klotzbuecher | ae3b770 | 2006-11-27 11:46:46 +0100 | [diff] [blame] | 313 | # define swap_16(x) (x) |
| 314 | # define swap_32(x) (x) |
| 315 | #else |
| 316 | # define swap_16(x) __swap_16(x) |
| 317 | # define swap_32(x) __swap_32(x) |
Mike Frysinger | c7d703f | 2009-01-01 18:27:27 -0500 | [diff] [blame] | 318 | #endif |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 319 | |
| 320 | /* |
| 321 | * Calling this entity a "pipe" is glorifying it. A USB pipe |
| 322 | * is something embarrassingly simple: it basically consists |
| 323 | * of the following information: |
| 324 | * - device number (7 bits) |
| 325 | * - endpoint number (4 bits) |
| 326 | * - current Data0/1 state (1 bit) |
| 327 | * - direction (1 bit) |
Michael Trimarchi | 3e12648 | 2008-11-28 13:19:19 +0100 | [diff] [blame] | 328 | * - speed (2 bits) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 329 | * - max packet size (2 bits: 8, 16, 32 or 64) |
| 330 | * - pipe type (2 bits: control, interrupt, bulk, isochronous) |
| 331 | * |
| 332 | * That's 18 bits. Really. Nothing more. And the USB people have |
| 333 | * documented these eighteen bits as some kind of glorious |
| 334 | * virtual data structure. |
| 335 | * |
| 336 | * Let's not fall in that trap. We'll just encode it as a simple |
| 337 | * unsigned int. The encoding is: |
| 338 | * |
| 339 | * - max size: bits 0-1 (00 = 8, 01 = 16, 10 = 32, 11 = 64) |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 340 | * - direction: bit 7 (0 = Host-to-Device [Out], |
| 341 | * (1 = Device-to-Host [In]) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 342 | * - device: bits 8-14 |
| 343 | * - endpoint: bits 15-18 |
| 344 | * - Data0/1: bit 19 |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 345 | * - pipe type: bits 30-31 (00 = isochronous, 01 = interrupt, |
| 346 | * 10 = control, 11 = bulk) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 347 | * |
| 348 | * Why? Because it's arbitrary, and whatever encoding we select is really |
| 349 | * up to us. This one happens to share a lot of bit positions with the UHCI |
| 350 | * specification, so that much of the uhci driver can just mask the bits |
| 351 | * appropriately. |
| 352 | */ |
| 353 | /* Create various pipes... */ |
| 354 | #define create_pipe(dev,endpoint) \ |
Sergei Shtylyov | d0fe112 | 2010-05-26 21:26:43 +0400 | [diff] [blame] | 355 | (((dev)->devnum << 8) | ((endpoint) << 15) | \ |
Ilya Yanok | c60795f | 2012-11-06 13:48:20 +0000 | [diff] [blame] | 356 | (dev)->maxpacketsize) |
Michael Trimarchi | 3e12648 | 2008-11-28 13:19:19 +0100 | [diff] [blame] | 357 | #define default_pipe(dev) ((dev)->speed << 26) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 358 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 359 | #define usb_sndctrlpipe(dev, endpoint) ((PIPE_CONTROL << 30) | \ |
| 360 | create_pipe(dev, endpoint)) |
| 361 | #define usb_rcvctrlpipe(dev, endpoint) ((PIPE_CONTROL << 30) | \ |
| 362 | create_pipe(dev, endpoint) | \ |
| 363 | USB_DIR_IN) |
| 364 | #define usb_sndisocpipe(dev, endpoint) ((PIPE_ISOCHRONOUS << 30) | \ |
| 365 | create_pipe(dev, endpoint)) |
| 366 | #define usb_rcvisocpipe(dev, endpoint) ((PIPE_ISOCHRONOUS << 30) | \ |
| 367 | create_pipe(dev, endpoint) | \ |
| 368 | USB_DIR_IN) |
| 369 | #define usb_sndbulkpipe(dev, endpoint) ((PIPE_BULK << 30) | \ |
| 370 | create_pipe(dev, endpoint)) |
| 371 | #define usb_rcvbulkpipe(dev, endpoint) ((PIPE_BULK << 30) | \ |
| 372 | create_pipe(dev, endpoint) | \ |
| 373 | USB_DIR_IN) |
| 374 | #define usb_sndintpipe(dev, endpoint) ((PIPE_INTERRUPT << 30) | \ |
| 375 | create_pipe(dev, endpoint)) |
| 376 | #define usb_rcvintpipe(dev, endpoint) ((PIPE_INTERRUPT << 30) | \ |
| 377 | create_pipe(dev, endpoint) | \ |
| 378 | USB_DIR_IN) |
| 379 | #define usb_snddefctrl(dev) ((PIPE_CONTROL << 30) | \ |
| 380 | default_pipe(dev)) |
| 381 | #define usb_rcvdefctrl(dev) ((PIPE_CONTROL << 30) | \ |
| 382 | default_pipe(dev) | \ |
| 383 | USB_DIR_IN) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 384 | |
| 385 | /* The D0/D1 toggle bits */ |
| 386 | #define usb_gettoggle(dev, ep, out) (((dev)->toggle[out] >> ep) & 1) |
wdenk | 5cf91d6 | 2004-04-23 20:32:05 +0000 | [diff] [blame] | 387 | #define usb_dotoggle(dev, ep, out) ((dev)->toggle[out] ^= (1 << ep)) |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 388 | #define usb_settoggle(dev, ep, out, bit) ((dev)->toggle[out] = \ |
| 389 | ((dev)->toggle[out] & \ |
| 390 | ~(1 << ep)) | ((bit) << ep)) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 391 | |
| 392 | /* Endpoint halt control/status */ |
| 393 | #define usb_endpoint_out(ep_dir) (((ep_dir >> 7) & 1) ^ 1) |
| 394 | #define usb_endpoint_halt(dev, ep, out) ((dev)->halted[out] |= (1 << (ep))) |
| 395 | #define usb_endpoint_running(dev, ep, out) ((dev)->halted[out] &= ~(1 << (ep))) |
| 396 | #define usb_endpoint_halted(dev, ep, out) ((dev)->halted[out] & (1 << (ep))) |
| 397 | |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 398 | #define usb_packetid(pipe) (((pipe) & USB_DIR_IN) ? USB_PID_IN : \ |
| 399 | USB_PID_OUT) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 400 | |
| 401 | #define usb_pipeout(pipe) ((((pipe) >> 7) & 1) ^ 1) |
| 402 | #define usb_pipein(pipe) (((pipe) >> 7) & 1) |
| 403 | #define usb_pipedevice(pipe) (((pipe) >> 8) & 0x7f) |
| 404 | #define usb_pipe_endpdev(pipe) (((pipe) >> 8) & 0x7ff) |
| 405 | #define usb_pipeendpoint(pipe) (((pipe) >> 15) & 0xf) |
| 406 | #define usb_pipedata(pipe) (((pipe) >> 19) & 1) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 407 | #define usb_pipetype(pipe) (((pipe) >> 30) & 3) |
| 408 | #define usb_pipeisoc(pipe) (usb_pipetype((pipe)) == PIPE_ISOCHRONOUS) |
| 409 | #define usb_pipeint(pipe) (usb_pipetype((pipe)) == PIPE_INTERRUPT) |
| 410 | #define usb_pipecontrol(pipe) (usb_pipetype((pipe)) == PIPE_CONTROL) |
| 411 | #define usb_pipebulk(pipe) (usb_pipetype((pipe)) == PIPE_BULK) |
| 412 | |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 413 | #define usb_pipe_ep_index(pipe) \ |
| 414 | usb_pipecontrol(pipe) ? (usb_pipeendpoint(pipe) * 2) : \ |
| 415 | ((usb_pipeendpoint(pipe) * 2) - \ |
| 416 | (usb_pipein(pipe) ? 0 : 1)) |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 417 | |
Simon Glass | 0566e24 | 2015-03-25 12:22:30 -0600 | [diff] [blame] | 418 | /** |
| 419 | * struct usb_device_id - identifies USB devices for probing and hotplugging |
| 420 | * @match_flags: Bit mask controlling which of the other fields are used to |
| 421 | * match against new devices. Any field except for driver_info may be |
| 422 | * used, although some only make sense in conjunction with other fields. |
| 423 | * This is usually set by a USB_DEVICE_*() macro, which sets all |
| 424 | * other fields in this structure except for driver_info. |
| 425 | * @idVendor: USB vendor ID for a device; numbers are assigned |
| 426 | * by the USB forum to its members. |
| 427 | * @idProduct: Vendor-assigned product ID. |
| 428 | * @bcdDevice_lo: Low end of range of vendor-assigned product version numbers. |
| 429 | * This is also used to identify individual product versions, for |
| 430 | * a range consisting of a single device. |
| 431 | * @bcdDevice_hi: High end of version number range. The range of product |
| 432 | * versions is inclusive. |
| 433 | * @bDeviceClass: Class of device; numbers are assigned |
| 434 | * by the USB forum. Products may choose to implement classes, |
| 435 | * or be vendor-specific. Device classes specify behavior of all |
| 436 | * the interfaces on a device. |
| 437 | * @bDeviceSubClass: Subclass of device; associated with bDeviceClass. |
| 438 | * @bDeviceProtocol: Protocol of device; associated with bDeviceClass. |
| 439 | * @bInterfaceClass: Class of interface; numbers are assigned |
| 440 | * by the USB forum. Products may choose to implement classes, |
| 441 | * or be vendor-specific. Interface classes specify behavior only |
| 442 | * of a given interface; other interfaces may support other classes. |
| 443 | * @bInterfaceSubClass: Subclass of interface; associated with bInterfaceClass. |
| 444 | * @bInterfaceProtocol: Protocol of interface; associated with bInterfaceClass. |
| 445 | * @bInterfaceNumber: Number of interface; composite devices may use |
| 446 | * fixed interface numbers to differentiate between vendor-specific |
| 447 | * interfaces. |
| 448 | * @driver_info: Holds information used by the driver. Usually it holds |
| 449 | * a pointer to a descriptor understood by the driver, or perhaps |
| 450 | * device flags. |
| 451 | * |
| 452 | * In most cases, drivers will create a table of device IDs by using |
| 453 | * USB_DEVICE(), or similar macros designed for that purpose. |
| 454 | * They will then export it to userspace using MODULE_DEVICE_TABLE(), |
| 455 | * and provide it to the USB core through their usb_driver structure. |
| 456 | * |
| 457 | * See the usb_match_id() function for information about how matches are |
| 458 | * performed. Briefly, you will normally use one of several macros to help |
| 459 | * construct these entries. Each entry you provide will either identify |
| 460 | * one or more specific products, or will identify a class of products |
| 461 | * which have agreed to behave the same. You should put the more specific |
| 462 | * matches towards the beginning of your table, so that driver_info can |
| 463 | * record quirks of specific products. |
| 464 | */ |
| 465 | struct usb_device_id { |
| 466 | /* which fields to match against? */ |
| 467 | u16 match_flags; |
| 468 | |
| 469 | /* Used for product specific matches; range is inclusive */ |
| 470 | u16 idVendor; |
| 471 | u16 idProduct; |
| 472 | u16 bcdDevice_lo; |
| 473 | u16 bcdDevice_hi; |
| 474 | |
| 475 | /* Used for device class matches */ |
| 476 | u8 bDeviceClass; |
| 477 | u8 bDeviceSubClass; |
| 478 | u8 bDeviceProtocol; |
| 479 | |
| 480 | /* Used for interface class matches */ |
| 481 | u8 bInterfaceClass; |
| 482 | u8 bInterfaceSubClass; |
| 483 | u8 bInterfaceProtocol; |
| 484 | |
| 485 | /* Used for vendor-specific interface matches */ |
| 486 | u8 bInterfaceNumber; |
| 487 | |
| 488 | /* not matched against */ |
| 489 | ulong driver_info; |
| 490 | }; |
| 491 | |
| 492 | /* Some useful macros to use to create struct usb_device_id */ |
| 493 | #define USB_DEVICE_ID_MATCH_VENDOR 0x0001 |
| 494 | #define USB_DEVICE_ID_MATCH_PRODUCT 0x0002 |
| 495 | #define USB_DEVICE_ID_MATCH_DEV_LO 0x0004 |
| 496 | #define USB_DEVICE_ID_MATCH_DEV_HI 0x0008 |
| 497 | #define USB_DEVICE_ID_MATCH_DEV_CLASS 0x0010 |
| 498 | #define USB_DEVICE_ID_MATCH_DEV_SUBCLASS 0x0020 |
| 499 | #define USB_DEVICE_ID_MATCH_DEV_PROTOCOL 0x0040 |
| 500 | #define USB_DEVICE_ID_MATCH_INT_CLASS 0x0080 |
| 501 | #define USB_DEVICE_ID_MATCH_INT_SUBCLASS 0x0100 |
| 502 | #define USB_DEVICE_ID_MATCH_INT_PROTOCOL 0x0200 |
| 503 | #define USB_DEVICE_ID_MATCH_INT_NUMBER 0x0400 |
| 504 | |
| 505 | /* Match anything, indicates this is a valid entry even if everything is 0 */ |
| 506 | #define USB_DEVICE_ID_MATCH_NONE 0x0800 |
| 507 | #define USB_DEVICE_ID_MATCH_ALL 0x07ff |
| 508 | |
| 509 | /** |
| 510 | * struct usb_driver_entry - Matches a driver to its usb_device_ids |
| 511 | * @compatible: Compatible string |
| 512 | * @data: Data for this compatible string |
| 513 | */ |
| 514 | struct usb_driver_entry { |
| 515 | struct driver *driver; |
| 516 | const struct usb_device_id *match; |
| 517 | }; |
| 518 | |
| 519 | #define USB_DEVICE(__name, __match) \ |
| 520 | ll_entry_declare(struct usb_driver_entry, __name, usb_driver_entry) = {\ |
| 521 | .driver = llsym(struct driver, __name, driver), \ |
| 522 | .match = __match, \ |
| 523 | } |
| 524 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 525 | /************************************************************************* |
| 526 | * Hub Stuff |
| 527 | */ |
| 528 | struct usb_port_status { |
| 529 | unsigned short wPortStatus; |
| 530 | unsigned short wPortChange; |
| 531 | } __attribute__ ((packed)); |
| 532 | |
| 533 | struct usb_hub_status { |
| 534 | unsigned short wHubStatus; |
| 535 | unsigned short wHubChange; |
| 536 | } __attribute__ ((packed)); |
| 537 | |
| 538 | |
| 539 | /* Hub descriptor */ |
| 540 | struct usb_hub_descriptor { |
| 541 | unsigned char bLength; |
| 542 | unsigned char bDescriptorType; |
| 543 | unsigned char bNbrPorts; |
| 544 | unsigned short wHubCharacteristics; |
| 545 | unsigned char bPwrOn2PwrGood; |
| 546 | unsigned char bHubContrCurrent; |
| 547 | unsigned char DeviceRemovable[(USB_MAXCHILDREN+1+7)/8]; |
| 548 | unsigned char PortPowerCtrlMask[(USB_MAXCHILDREN+1+7)/8]; |
Michael Trimarchi | de39f8c | 2008-11-26 17:41:34 +0100 | [diff] [blame] | 549 | /* DeviceRemovable and PortPwrCtrlMask want to be variable-length |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 550 | bitmaps that hold max 255 entries. (bit0 is ignored) */ |
| 551 | } __attribute__ ((packed)); |
| 552 | |
| 553 | |
| 554 | struct usb_hub_device { |
| 555 | struct usb_device *pusb_dev; |
| 556 | struct usb_hub_descriptor desc; |
| 557 | }; |
| 558 | |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 559 | #ifdef CONFIG_DM_USB |
| 560 | /** |
| 561 | * struct usb_platdata - Platform data about a USB controller |
| 562 | * |
| 563 | * Given a USB controller (UCLASS_USB) dev this is dev_get_platdata(dev) |
| 564 | */ |
| 565 | struct usb_platdata { |
| 566 | enum usb_init_type init_type; |
| 567 | }; |
| 568 | |
| 569 | /** |
| 570 | * struct usb_dev_platdata - Platform data about a USB device |
| 571 | * |
| 572 | * Given a USB device dev this structure is dev_get_parent_platdata(dev). |
| 573 | * This is used by sandbox to provide emulation data also. |
| 574 | * |
| 575 | * @id: ID used to match this device |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 576 | * @devnum: Device address on the USB bus |
Hans de Goede | 7f1a075 | 2015-05-05 11:54:32 +0200 | [diff] [blame] | 577 | * @udev: usb-uclass internal use only do NOT use |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 578 | * @strings: List of descriptor strings (for sandbox emulation purposes) |
| 579 | * @desc_list: List of descriptors (for sandbox emulation purposes) |
| 580 | */ |
| 581 | struct usb_dev_platdata { |
| 582 | struct usb_device_id id; |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 583 | int devnum; |
Hans de Goede | 7f1a075 | 2015-05-05 11:54:32 +0200 | [diff] [blame] | 584 | /* |
| 585 | * This pointer is used to pass the usb_device used in usb_scan_device, |
| 586 | * to get the usb descriptors before the driver is known, to the |
| 587 | * actual udevice once the driver is known and the udevice is created. |
| 588 | * This will be NULL except during probe, do NOT use. |
| 589 | * |
| 590 | * This should eventually go away. |
| 591 | */ |
| 592 | struct usb_device *udev; |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 593 | #ifdef CONFIG_SANDBOX |
| 594 | struct usb_string *strings; |
| 595 | /* NULL-terminated list of descriptor pointers */ |
| 596 | struct usb_generic_descriptor **desc_list; |
| 597 | #endif |
| 598 | int configno; |
| 599 | }; |
| 600 | |
| 601 | /** |
| 602 | * struct usb_bus_priv - information about the USB controller |
| 603 | * |
| 604 | * Given a USB controller (UCLASS_USB) 'dev', this is |
| 605 | * dev_get_uclass_priv(dev). |
| 606 | * |
| 607 | * @next_addr: Next device address to allocate minus 1. Incremented by 1 |
| 608 | * each time a new device address is set, so this holds the |
| 609 | * number of devices on the bus |
| 610 | * @desc_before_addr: true if we can read a device descriptor before it |
| 611 | * has been assigned an address. For XHCI this is not possible |
| 612 | * so this will be false. |
Hans de Goede | b6de4d1 | 2015-05-10 14:10:20 +0200 | [diff] [blame] | 613 | * @companion: True if this is a companion controller to another USB |
| 614 | * controller |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 615 | */ |
| 616 | struct usb_bus_priv { |
| 617 | int next_addr; |
| 618 | bool desc_before_addr; |
Hans de Goede | b6de4d1 | 2015-05-10 14:10:20 +0200 | [diff] [blame] | 619 | bool companion; |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 620 | }; |
| 621 | |
| 622 | /** |
| 623 | * struct dm_usb_ops - USB controller operations |
| 624 | * |
| 625 | * This defines the operations supoorted on a USB controller. Common |
| 626 | * arguments are: |
| 627 | * |
| 628 | * @bus: USB bus (i.e. controller), which is in UCLASS_USB. |
| 629 | * @udev: USB device parent data. Controllers are not expected to need |
| 630 | * this, since the device address on the bus is encoded in @pipe. |
| 631 | * It is used for sandbox, and can be handy for debugging and |
| 632 | * logging. |
| 633 | * @pipe: An assortment of bitfields which provide address and packet |
| 634 | * type information. See create_pipe() above for encoding |
| 635 | * details |
| 636 | * @buffer: A buffer to use for sending/receiving. This should be |
| 637 | * DMA-aligned. |
| 638 | * @length: Buffer length in bytes |
| 639 | */ |
| 640 | struct dm_usb_ops { |
| 641 | /** |
| 642 | * control() - Send a control message |
| 643 | * |
| 644 | * Most parameters are as above. |
| 645 | * |
| 646 | * @setup: Additional setup information required by the message |
| 647 | */ |
| 648 | int (*control)(struct udevice *bus, struct usb_device *udev, |
| 649 | unsigned long pipe, void *buffer, int length, |
| 650 | struct devrequest *setup); |
| 651 | /** |
| 652 | * bulk() - Send a bulk message |
| 653 | * |
| 654 | * Parameters are as above. |
| 655 | */ |
| 656 | int (*bulk)(struct udevice *bus, struct usb_device *udev, |
| 657 | unsigned long pipe, void *buffer, int length); |
| 658 | /** |
| 659 | * interrupt() - Send an interrupt message |
| 660 | * |
| 661 | * Most parameters are as above. |
| 662 | * |
| 663 | * @interval: Interrupt interval |
| 664 | */ |
| 665 | int (*interrupt)(struct udevice *bus, struct usb_device *udev, |
| 666 | unsigned long pipe, void *buffer, int length, |
| 667 | int interval); |
Hans de Goede | 8a5f066 | 2015-05-10 14:10:18 +0200 | [diff] [blame] | 668 | |
| 669 | /** |
| 670 | * create_int_queue() - Create and queue interrupt packets |
| 671 | * |
| 672 | * Create and queue @queuesize number of interrupt usb packets of |
| 673 | * @elementsize bytes each. @buffer must be atleast @queuesize * |
| 674 | * @elementsize bytes. |
| 675 | * |
| 676 | * Note some controllers only support a queuesize of 1. |
| 677 | * |
| 678 | * @interval: Interrupt interval |
| 679 | * |
| 680 | * @return A pointer to the created interrupt queue or NULL on error |
| 681 | */ |
| 682 | struct int_queue * (*create_int_queue)(struct udevice *bus, |
| 683 | struct usb_device *udev, unsigned long pipe, |
| 684 | int queuesize, int elementsize, void *buffer, |
| 685 | int interval); |
| 686 | |
| 687 | /** |
| 688 | * poll_int_queue() - Poll an interrupt queue for completed packets |
| 689 | * |
| 690 | * Poll an interrupt queue for completed packets. The return value |
| 691 | * points to the part of the buffer passed to create_int_queue() |
| 692 | * corresponding to the completed packet. |
| 693 | * |
| 694 | * @queue: queue to poll |
| 695 | * |
| 696 | * @return Pointer to the data of the first completed packet, or |
| 697 | * NULL if no packets are ready |
| 698 | */ |
| 699 | void * (*poll_int_queue)(struct udevice *bus, struct usb_device *udev, |
| 700 | struct int_queue *queue); |
| 701 | |
| 702 | /** |
| 703 | * destroy_int_queue() - Destroy an interrupt queue |
| 704 | * |
| 705 | * Destroy an interrupt queue created by create_int_queue(). |
| 706 | * |
| 707 | * @queue: queue to poll |
| 708 | * |
| 709 | * @return 0 if OK, -ve on error |
| 710 | */ |
| 711 | int (*destroy_int_queue)(struct udevice *bus, struct usb_device *udev, |
| 712 | struct int_queue *queue); |
| 713 | |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 714 | /** |
| 715 | * alloc_device() - Allocate a new device context (XHCI) |
| 716 | * |
| 717 | * Before sending packets to a new device on an XHCI bus, a device |
| 718 | * context must be created. If this method is not NULL it will be |
| 719 | * called before the device is enumerated (even before its descriptor |
| 720 | * is read). This should be NULL for EHCI, which does not need this. |
| 721 | */ |
| 722 | int (*alloc_device)(struct udevice *bus, struct usb_device *udev); |
| 723 | }; |
| 724 | |
| 725 | #define usb_get_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops) |
| 726 | #define usb_get_emul_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops) |
| 727 | |
| 728 | #ifdef CONFIG_MUSB_HOST |
| 729 | int usb_reset_root_port(void); |
| 730 | #endif |
| 731 | |
| 732 | /** |
| 733 | * usb_get_dev_index() - look up a device index number |
| 734 | * |
| 735 | * Look up devices using their index number (starting at 0). This works since |
| 736 | * in U-Boot device addresses are allocated starting at 1 with no gaps. |
| 737 | * |
| 738 | * TODO(sjg@chromium.org): Remove this function when usb_ether.c is modified |
| 739 | * to work better with driver model. |
| 740 | * |
| 741 | * @bus: USB bus to check |
| 742 | * @index: Index number of device to find (0=first). This is just the |
| 743 | * device address less 1. |
| 744 | */ |
| 745 | struct usb_device *usb_get_dev_index(struct udevice *bus, int index); |
| 746 | |
| 747 | /** |
| 748 | * usb_legacy_port_reset() - Legacy function to reset a hub port |
| 749 | * |
| 750 | * @hub: Hub device |
| 751 | * @portnr: Port number (1=first) |
| 752 | */ |
| 753 | int usb_legacy_port_reset(struct usb_device *hub, int portnr); |
| 754 | |
| 755 | /** |
| 756 | * usb_setup_device() - set up a device ready for use |
| 757 | * |
| 758 | * @dev: USB device pointer. This need not be a real device - it is |
| 759 | * common for it to just be a local variable with its ->dev |
| 760 | * member (i.e. @dev->dev) set to the parent device |
| 761 | * @do_read: true to read the device descriptor before an address is set |
| 762 | * (should be false for XHCI buses, true otherwise) |
| 763 | * @parent: Parent device (either UCLASS_USB or UCLASS_USB_HUB) |
| 764 | * @portnr: Port number on hub (1=first) or 0 for none |
| 765 | * @return 0 if OK, -ve on error */ |
| 766 | int usb_setup_device(struct usb_device *dev, bool do_read, |
| 767 | struct usb_device *parent, int portnr); |
| 768 | |
| 769 | /** |
| 770 | * usb_hub_scan() - Scan a hub and find its devices |
| 771 | * |
| 772 | * @hub: Hub device to scan |
| 773 | */ |
| 774 | int usb_hub_scan(struct udevice *hub); |
| 775 | |
| 776 | /** |
| 777 | * usb_scan_device() - Scan a device on a bus |
| 778 | * |
| 779 | * Scan a device on a bus. It has already been detected and is ready to |
| 780 | * be enumerated. This may be either the root hub (@parent is a bus) or a |
| 781 | * normal device (@parent is a hub) |
| 782 | * |
| 783 | * @parent: Parent device |
| 784 | * @port: Hub port number (numbered from 1) |
| 785 | * @speed: USB speed to use for this device |
| 786 | * @devp: Returns pointer to device if all is well |
| 787 | * @return 0 if OK, -ve on error |
| 788 | */ |
| 789 | int usb_scan_device(struct udevice *parent, int port, |
| 790 | enum usb_device_speed speed, struct udevice **devp); |
| 791 | |
| 792 | /** |
| 793 | * usb_get_bus() - Find the bus for a device |
| 794 | * |
| 795 | * Search up through parents to find the bus this device is connected to. This |
| 796 | * will be a device with uclass UCLASS_USB. |
| 797 | * |
| 798 | * @dev: Device to check |
Hans de Goede | f78a5c0 | 2015-05-05 11:54:31 +0200 | [diff] [blame] | 799 | * @return The bus, or NULL if not found (this indicates a critical error in |
| 800 | * the USB stack |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 801 | */ |
Hans de Goede | f78a5c0 | 2015-05-05 11:54:31 +0200 | [diff] [blame] | 802 | struct udevice *usb_get_bus(struct udevice *dev); |
Simon Glass | de31213 | 2015-03-25 12:21:59 -0600 | [diff] [blame] | 803 | |
| 804 | /** |
| 805 | * usb_select_config() - Set up a device ready for use |
| 806 | * |
| 807 | * This function assumes that the device already has an address and a driver |
| 808 | * bound, and is ready to be set up. |
| 809 | * |
| 810 | * This re-reads the device and configuration descriptors and sets the |
| 811 | * configuration |
| 812 | * |
| 813 | * @dev: Device to set up |
| 814 | */ |
| 815 | int usb_select_config(struct usb_device *dev); |
| 816 | |
| 817 | /** |
| 818 | * usb_child_pre_probe() - Pre-probe function for USB devices |
| 819 | * |
| 820 | * This is called on all children of hubs and USB controllers (i.e. UCLASS_USB |
| 821 | * and UCLASS_USB_HUB) when a new device is about to be probed. It sets up the |
| 822 | * device from the saved platform data and calls usb_select_config() to |
| 823 | * finish set up. |
| 824 | * |
| 825 | * Once this is done, the device's normal driver can take over, knowing the |
| 826 | * device is accessible on the USB bus. |
| 827 | * |
| 828 | * This function is for use only by the internal USB stack. |
| 829 | * |
| 830 | * @dev: Device to set up |
| 831 | */ |
| 832 | int usb_child_pre_probe(struct udevice *dev); |
| 833 | |
| 834 | struct ehci_ctrl; |
| 835 | |
| 836 | /** |
| 837 | * usb_setup_ehci_gadget() - Set up a USB device as a gadget |
| 838 | * |
| 839 | * TODO(sjg@chromium.org): Tidy this up when USB gadgets can use driver model |
| 840 | * |
| 841 | * This provides a way to tell a controller to start up as a USB device |
| 842 | * instead of as a host. It is untested. |
| 843 | */ |
| 844 | int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp); |
| 845 | |
| 846 | /** |
| 847 | * usb_stor_reset() - Prepare to scan USB storage devices |
| 848 | * |
| 849 | * Empty the list of USB storage devices in preparation for scanning them. |
| 850 | * This must be called before a USB scan. |
| 851 | */ |
| 852 | void usb_stor_reset(void); |
| 853 | |
| 854 | #else /* !CONFIG_DM_USB */ |
| 855 | |
| 856 | struct usb_device *usb_get_dev_index(int index); |
| 857 | |
| 858 | #endif |
| 859 | |
| 860 | bool usb_device_has_child_on_port(struct usb_device *parent, int port); |
| 861 | |
Marek Vasut | 23faf2b | 2012-02-13 18:58:17 +0000 | [diff] [blame] | 862 | int usb_hub_probe(struct usb_device *dev, int ifnum); |
| 863 | void usb_hub_reset(void); |
Simon Glass | 862e75c | 2015-03-25 12:22:04 -0600 | [diff] [blame] | 864 | |
| 865 | /** |
| 866 | * legacy_hub_port_reset() - reset a port given its usb_device pointer |
| 867 | * |
| 868 | * Reset a hub port and see if a device is present on that port, providing |
| 869 | * sufficient time for it to show itself. The port status is returned. |
| 870 | * |
| 871 | * With driver model this moves to hub_port_reset() and is passed a struct |
| 872 | * udevice. |
| 873 | * |
| 874 | * @dev: USB device to reset |
| 875 | * @port: Port number to reset (note ports are numbered from 0 here) |
| 876 | * @portstat: Returns port status |
| 877 | */ |
| 878 | int legacy_hub_port_reset(struct usb_device *dev, int port, |
Marek Vasut | 23faf2b | 2012-02-13 18:58:17 +0000 | [diff] [blame] | 879 | unsigned short *portstat); |
| 880 | |
Simon Glass | 862e75c | 2015-03-25 12:22:04 -0600 | [diff] [blame] | 881 | int hub_port_reset(struct udevice *dev, int port, unsigned short *portstat); |
| 882 | |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 883 | /** |
| 884 | * usb_alloc_new_device() - Allocate a new device |
| 885 | * |
| 886 | * @devp: returns a pointer of a new device structure. With driver model this |
| 887 | * is a device pointer, but with legacy USB this pointer is |
| 888 | * driver-specific. |
| 889 | * @return 0 if OK, -ENOSPC if we have found out of room for new devices |
| 890 | */ |
| 891 | int usb_alloc_new_device(struct udevice *controller, struct usb_device **devp); |
| 892 | |
| 893 | /** |
| 894 | * usb_free_device() - Free a partially-inited device |
| 895 | * |
| 896 | * This is an internal function. It is used to reverse the action of |
| 897 | * usb_alloc_new_device() when we hit a problem during init. |
| 898 | */ |
| 899 | void usb_free_device(struct udevice *controller); |
Lucas Stach | c7e3b2b | 2012-09-26 00:14:34 +0200 | [diff] [blame] | 900 | |
Marek Vasut | 23faf2b | 2012-02-13 18:58:17 +0000 | [diff] [blame] | 901 | int usb_new_device(struct usb_device *dev); |
Simon Glass | 79b5888 | 2015-03-25 12:22:01 -0600 | [diff] [blame] | 902 | |
Vivek Gautam | 5853e13 | 2013-09-14 14:02:45 +0530 | [diff] [blame] | 903 | int usb_alloc_device(struct usb_device *dev); |
Marek Vasut | 23faf2b | 2012-02-13 18:58:17 +0000 | [diff] [blame] | 904 | |
Simon Glass | 019808f | 2015-03-25 12:22:37 -0600 | [diff] [blame] | 905 | /** |
| 906 | * usb_emul_setup_device() - Set up a new USB device emulation |
| 907 | * |
| 908 | * This is normally called when a new emulation device is bound. It tells |
| 909 | * the USB emulation uclass about the features of the emulator. |
| 910 | * |
| 911 | * @dev: Emulation device |
| 912 | * @maxpacketsize: Maximum packet size (e.g. PACKET_SIZE_64) |
| 913 | * @strings: List of USB string descriptors, terminated by a NULL |
| 914 | * entry |
| 915 | * @desc_list: List of points or USB descriptors, terminated by NULL. |
| 916 | * The first entry must be struct usb_device_descriptor, |
| 917 | * and others follow on after that. |
| 918 | * @return 0 if OK, -ve on error |
| 919 | */ |
| 920 | int usb_emul_setup_device(struct udevice *dev, int maxpacketsize, |
| 921 | struct usb_string *strings, void **desc_list); |
| 922 | |
| 923 | /** |
| 924 | * usb_emul_control() - Send a control packet to an emulator |
| 925 | * |
| 926 | * @emul: Emulator device |
| 927 | * @udev: USB device (which the emulator is causing to appear) |
| 928 | * See struct dm_usb_ops for details on other parameters |
| 929 | * @return 0 if OK, -ve on error |
| 930 | */ |
| 931 | int usb_emul_control(struct udevice *emul, struct usb_device *udev, |
| 932 | unsigned long pipe, void *buffer, int length, |
| 933 | struct devrequest *setup); |
| 934 | |
| 935 | /** |
| 936 | * usb_emul_bulk() - Send a bulk packet to an emulator |
| 937 | * |
| 938 | * @emul: Emulator device |
| 939 | * @udev: USB device (which the emulator is causing to appear) |
| 940 | * See struct dm_usb_ops for details on other parameters |
| 941 | * @return 0 if OK, -ve on error |
| 942 | */ |
| 943 | int usb_emul_bulk(struct udevice *emul, struct usb_device *udev, |
| 944 | unsigned long pipe, void *buffer, int length); |
| 945 | |
| 946 | /** |
| 947 | * usb_emul_find() - Find an emulator for a particular device |
| 948 | * |
| 949 | * Check @pipe to find a device number on bus @bus and return it. |
| 950 | * |
| 951 | * @bus: USB bus (controller) |
| 952 | * @pipe: Describes pipe being used, and includes the device number |
| 953 | * @emulp: Returns pointer to emulator, or NULL if not found |
| 954 | * @return 0 if found, -ve on error |
| 955 | */ |
| 956 | int usb_emul_find(struct udevice *bus, ulong pipe, struct udevice **emulp); |
| 957 | |
| 958 | /** |
| 959 | * usb_emul_reset() - Reset all emulators ready for use |
| 960 | * |
| 961 | * Clear out any address information in the emulators and make then ready for |
| 962 | * a new USB scan |
| 963 | */ |
| 964 | void usb_emul_reset(struct udevice *dev); |
| 965 | |
wdenk | 012771d | 2002-03-08 21:31:05 +0000 | [diff] [blame] | 966 | #endif /*_USB_H_ */ |