Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Host Controller Driver for the Elan Digital Systems U132 adapter |
| 3 | * |
| 4 | * Copyright(C) 2006 Elan Digital Systems Limited |
| 5 | * http://www.elandigitalsystems.com |
| 6 | * |
| 7 | * Author and Maintainer - Tony Olech - Elan Digital Systems |
| 8 | * tony.olech@elandigitalsystems.com |
| 9 | * |
| 10 | * This program is free software;you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public License as |
| 12 | * published by the Free Software Foundation, version 2. |
| 13 | * |
| 14 | * |
| 15 | * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) |
| 16 | * based on various USB host drivers in the 2.6.15 linux kernel |
| 17 | * with constant reference to the 3rd Edition of Linux Device Drivers |
| 18 | * published by O'Reilly |
| 19 | * |
| 20 | * The U132 adapter is a USB to CardBus adapter specifically designed |
| 21 | * for PC cards that contain an OHCI host controller. Typical PC cards |
| 22 | * are the Orange Mobile 3G Option GlobeTrotter Fusion card. |
| 23 | * |
| 24 | * The U132 adapter will *NOT *work with PC cards that do not contain |
| 25 | * an OHCI controller. A simple way to test whether a PC card has an |
| 26 | * OHCI controller as an interface is to insert the PC card directly |
| 27 | * into a laptop(or desktop) with a CardBus slot and if "lspci" shows |
| 28 | * a new USB controller and "lsusb -v" shows a new OHCI Host Controller |
| 29 | * then there is a good chance that the U132 adapter will support the |
| 30 | * PC card.(you also need the specific client driver for the PC card) |
| 31 | * |
| 32 | * Please inform the Author and Maintainer about any PC cards that |
| 33 | * contain OHCI Host Controller and work when directly connected to |
| 34 | * an embedded CardBus slot but do not work when they are connected |
| 35 | * via an ELAN U132 adapter. |
| 36 | * |
| 37 | */ |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 38 | #include <linux/kernel.h> |
| 39 | #include <linux/module.h> |
| 40 | #include <linux/moduleparam.h> |
| 41 | #include <linux/delay.h> |
| 42 | #include <linux/ioport.h> |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 43 | #include <linux/pci_ids.h> |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 44 | #include <linux/sched.h> |
| 45 | #include <linux/slab.h> |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 46 | #include <linux/errno.h> |
| 47 | #include <linux/init.h> |
| 48 | #include <linux/timer.h> |
| 49 | #include <linux/list.h> |
| 50 | #include <linux/interrupt.h> |
| 51 | #include <linux/usb.h> |
Eric Lescouet | 27729aa | 2010-04-24 23:21:52 +0200 | [diff] [blame] | 52 | #include <linux/usb/hcd.h> |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 53 | #include <linux/workqueue.h> |
| 54 | #include <linux/platform_device.h> |
Matthias Kaehlcke | d2066eb | 2007-07-13 21:26:59 +0200 | [diff] [blame] | 55 | #include <linux/mutex.h> |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 56 | #include <asm/io.h> |
| 57 | #include <asm/irq.h> |
| 58 | #include <asm/system.h> |
| 59 | #include <asm/byteorder.h> |
David Brownell | 47f8468 | 2007-04-29 10:21:14 -0700 | [diff] [blame] | 60 | |
| 61 | /* FIXME ohci.h is ONLY for internal use by the OHCI driver. |
| 62 | * If you're going to try stuff like this, you need to split |
| 63 | * out shareable stuff (register declarations?) into its own |
| 64 | * file, maybe name <linux/usb/ohci.h> |
| 65 | */ |
| 66 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 67 | #include "ohci.h" |
| 68 | #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR |
| 69 | #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 70 | OHCI_INTR_WDH) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 71 | MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
| 72 | MODULE_DESCRIPTION("U132 USB Host Controller Driver"); |
| 73 | MODULE_LICENSE("GPL"); |
| 74 | #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) |
| 75 | INT_MODULE_PARM(testing, 0); |
| 76 | /* Some boards misreport power switching/overcurrent*/ |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 77 | static bool distrust_firmware = 1; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 78 | module_param(distrust_firmware, bool, 0); |
| 79 | MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 80 | "t setup"); |
Adrian Bunk | 27a3de4 | 2006-11-20 03:23:54 +0100 | [diff] [blame] | 81 | static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 82 | /* |
| 83 | * u132_module_lock exists to protect access to global variables |
| 84 | * |
| 85 | */ |
Matthias Kaehlcke | d2066eb | 2007-07-13 21:26:59 +0200 | [diff] [blame] | 86 | static struct mutex u132_module_lock; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 87 | static int u132_exiting; |
| 88 | static int u132_instances; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 89 | static struct list_head u132_static_list; |
| 90 | /* |
| 91 | * end of the global variables protected by u132_module_lock |
| 92 | */ |
| 93 | static struct workqueue_struct *workqueue; |
| 94 | #define MAX_U132_PORTS 7 |
| 95 | #define MAX_U132_ADDRS 128 |
| 96 | #define MAX_U132_UDEVS 4 |
| 97 | #define MAX_U132_ENDPS 100 |
| 98 | #define MAX_U132_RINGS 4 |
| 99 | static const char *cc_to_text[16] = { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 100 | "No Error ", |
| 101 | "CRC Error ", |
| 102 | "Bit Stuff ", |
| 103 | "Data Togg ", |
| 104 | "Stall ", |
| 105 | "DevNotResp ", |
| 106 | "PIDCheck ", |
| 107 | "UnExpPID ", |
| 108 | "DataOver ", |
| 109 | "DataUnder ", |
| 110 | "(for hw) ", |
| 111 | "(for hw) ", |
| 112 | "BufferOver ", |
| 113 | "BuffUnder ", |
| 114 | "(for HCD) ", |
| 115 | "(for HCD) " |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 116 | }; |
| 117 | struct u132_port { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 118 | struct u132 *u132; |
| 119 | int reset; |
| 120 | int enable; |
| 121 | int power; |
| 122 | int Status; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 123 | }; |
| 124 | struct u132_addr { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 125 | u8 address; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 126 | }; |
| 127 | struct u132_udev { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 128 | struct kref kref; |
| 129 | struct usb_device *usb_device; |
| 130 | u8 enumeration; |
| 131 | u8 udev_number; |
| 132 | u8 usb_addr; |
| 133 | u8 portnumber; |
| 134 | u8 endp_number_in[16]; |
| 135 | u8 endp_number_out[16]; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 136 | }; |
| 137 | #define ENDP_QUEUE_SHIFT 3 |
| 138 | #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) |
| 139 | #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) |
| 140 | struct u132_urbq { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 141 | struct list_head urb_more; |
| 142 | struct urb *urb; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 143 | }; |
| 144 | struct u132_spin { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 145 | spinlock_t slock; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 146 | }; |
| 147 | struct u132_endp { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 148 | struct kref kref; |
| 149 | u8 udev_number; |
| 150 | u8 endp_number; |
| 151 | u8 usb_addr; |
| 152 | u8 usb_endp; |
| 153 | struct u132 *u132; |
| 154 | struct list_head endp_ring; |
| 155 | struct u132_ring *ring; |
| 156 | unsigned toggle_bits:2; |
| 157 | unsigned active:1; |
| 158 | unsigned delayed:1; |
| 159 | unsigned input:1; |
| 160 | unsigned output:1; |
| 161 | unsigned pipetype:2; |
| 162 | unsigned dequeueing:1; |
| 163 | unsigned edset_flush:1; |
| 164 | unsigned spare_bits:14; |
| 165 | unsigned long jiffies; |
| 166 | struct usb_host_endpoint *hep; |
| 167 | struct u132_spin queue_lock; |
| 168 | u16 queue_size; |
| 169 | u16 queue_last; |
| 170 | u16 queue_next; |
| 171 | struct urb *urb_list[ENDP_QUEUE_SIZE]; |
| 172 | struct list_head urb_more; |
| 173 | struct delayed_work scheduler; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 174 | }; |
| 175 | struct u132_ring { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 176 | unsigned in_use:1; |
| 177 | unsigned length:7; |
| 178 | u8 number; |
| 179 | struct u132 *u132; |
| 180 | struct u132_endp *curr_endp; |
| 181 | struct delayed_work scheduler; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 182 | }; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 183 | struct u132 { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 184 | struct kref kref; |
| 185 | struct list_head u132_list; |
| 186 | struct mutex sw_lock; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 187 | struct mutex scheduler_lock; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 188 | struct u132_platform_data *board; |
| 189 | struct platform_device *platform_dev; |
| 190 | struct u132_ring ring[MAX_U132_RINGS]; |
| 191 | int sequence_num; |
| 192 | int going; |
| 193 | int power; |
| 194 | int reset; |
| 195 | int num_ports; |
| 196 | u32 hc_control; |
| 197 | u32 hc_fminterval; |
| 198 | u32 hc_roothub_status; |
| 199 | u32 hc_roothub_a; |
| 200 | u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; |
| 201 | int flags; |
| 202 | unsigned long next_statechange; |
| 203 | struct delayed_work monitor; |
| 204 | int num_endpoints; |
| 205 | struct u132_addr addr[MAX_U132_ADDRS]; |
| 206 | struct u132_udev udev[MAX_U132_UDEVS]; |
| 207 | struct u132_port port[MAX_U132_PORTS]; |
| 208 | struct u132_endp *endp[MAX_U132_ENDPS]; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 209 | }; |
Adrian Bunk | 9ce8540 | 2006-11-20 03:24:44 +0100 | [diff] [blame] | 210 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 211 | /* |
Matt LaPlante | 0779bf2 | 2006-11-30 05:24:39 +0100 | [diff] [blame] | 212 | * these cannot be inlines because we need the structure offset!! |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 213 | * Does anyone have a better way????? |
| 214 | */ |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 215 | #define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 216 | offsetof(struct ohci_regs, member), 0, data); |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 217 | #define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 218 | offsetof(struct ohci_regs, member), 0, data); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 219 | #define u132_read_pcimem(u132, member, data) \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 220 | usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
| 221 | ohci_regs, member), 0, data); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 222 | #define u132_write_pcimem(u132, member, data) \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 223 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
| 224 | ohci_regs, member), 0, data); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 225 | static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
| 226 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 227 | u8 udev_number = udev->udev_number; |
| 228 | return container_of(udev, struct u132, udev[udev_number]); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) |
| 232 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 233 | return (struct u132 *)(hcd->hcd_priv); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 234 | } |
| 235 | |
| 236 | static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) |
| 237 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 238 | return container_of((void *)u132, struct usb_hcd, hcd_priv); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 239 | } |
| 240 | |
| 241 | static inline void u132_disable(struct u132 *u132) |
| 242 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 243 | u132_to_hcd(u132)->state = HC_STATE_HALT; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | |
| 247 | #define kref_to_u132(d) container_of(d, struct u132, kref) |
| 248 | #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) |
| 249 | #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) |
| 250 | #include "../misc/usb_u132.h" |
| 251 | static const char hcd_name[] = "u132_hcd"; |
| 252 | #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 253 | USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
| 254 | USB_PORT_STAT_C_RESET) << 16) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 255 | static void u132_hcd_delete(struct kref *kref) |
| 256 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 257 | struct u132 *u132 = kref_to_u132(kref); |
| 258 | struct platform_device *pdev = u132->platform_dev; |
| 259 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 260 | u132->going += 1; |
| 261 | mutex_lock(&u132_module_lock); |
| 262 | list_del_init(&u132->u132_list); |
| 263 | u132_instances -= 1; |
| 264 | mutex_unlock(&u132_module_lock); |
| 265 | dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" |
| 266 | "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); |
| 267 | usb_put_hcd(hcd); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | static inline void u132_u132_put_kref(struct u132 *u132) |
| 271 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 272 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | static inline void u132_u132_init_kref(struct u132 *u132) |
| 276 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 277 | kref_init(&u132->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 278 | } |
| 279 | |
| 280 | static void u132_udev_delete(struct kref *kref) |
| 281 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 282 | struct u132_udev *udev = kref_to_u132_udev(kref); |
| 283 | udev->udev_number = 0; |
| 284 | udev->usb_device = NULL; |
| 285 | udev->usb_addr = 0; |
| 286 | udev->enumeration = 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 287 | } |
| 288 | |
| 289 | static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) |
| 290 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 291 | kref_put(&udev->kref, u132_udev_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) |
| 295 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 296 | kref_get(&udev->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | static inline void u132_udev_init_kref(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 300 | struct u132_udev *udev) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 301 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 302 | kref_init(&udev->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 303 | } |
| 304 | |
| 305 | static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) |
| 306 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 307 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 311 | unsigned int delta) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 312 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 313 | if (delta > 0) { |
| 314 | if (queue_delayed_work(workqueue, &ring->scheduler, delta)) |
| 315 | return; |
| 316 | } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) |
| 317 | return; |
| 318 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 322 | unsigned int delta) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 323 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 324 | kref_get(&u132->kref); |
| 325 | u132_ring_requeue_work(u132, ring, delta); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) |
| 329 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 330 | if (cancel_delayed_work(&ring->scheduler)) |
| 331 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 332 | } |
| 333 | |
| 334 | static void u132_endp_delete(struct kref *kref) |
| 335 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 336 | struct u132_endp *endp = kref_to_u132_endp(kref); |
| 337 | struct u132 *u132 = endp->u132; |
| 338 | u8 usb_addr = endp->usb_addr; |
| 339 | u8 usb_endp = endp->usb_endp; |
| 340 | u8 address = u132->addr[usb_addr].address; |
| 341 | struct u132_udev *udev = &u132->udev[address]; |
| 342 | u8 endp_number = endp->endp_number; |
| 343 | struct usb_host_endpoint *hep = endp->hep; |
| 344 | struct u132_ring *ring = endp->ring; |
| 345 | struct list_head *head = &endp->endp_ring; |
| 346 | ring->length -= 1; |
| 347 | if (endp == ring->curr_endp) { |
| 348 | if (list_empty(head)) { |
| 349 | ring->curr_endp = NULL; |
| 350 | list_del(head); |
| 351 | } else { |
| 352 | struct u132_endp *next_endp = list_entry(head->next, |
| 353 | struct u132_endp, endp_ring); |
| 354 | ring->curr_endp = next_endp; |
| 355 | list_del(head); |
| 356 | } |
| 357 | } else |
| 358 | list_del(head); |
| 359 | if (endp->input) { |
| 360 | udev->endp_number_in[usb_endp] = 0; |
| 361 | u132_udev_put_kref(u132, udev); |
| 362 | } |
| 363 | if (endp->output) { |
| 364 | udev->endp_number_out[usb_endp] = 0; |
| 365 | u132_udev_put_kref(u132, udev); |
| 366 | } |
| 367 | u132->endp[endp_number - 1] = NULL; |
| 368 | hep->hcpriv = NULL; |
| 369 | kfree(endp); |
| 370 | u132_u132_put_kref(u132); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 371 | } |
| 372 | |
| 373 | static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) |
| 374 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 375 | kref_put(&endp->kref, u132_endp_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 376 | } |
| 377 | |
| 378 | static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) |
| 379 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 380 | kref_get(&endp->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 381 | } |
| 382 | |
| 383 | static inline void u132_endp_init_kref(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 384 | struct u132_endp *endp) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 385 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 386 | kref_init(&endp->kref); |
| 387 | kref_get(&u132->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 391 | unsigned int delta) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 392 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 393 | if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
| 394 | kref_get(&endp->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 395 | } |
| 396 | |
| 397 | static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) |
| 398 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 399 | if (cancel_delayed_work(&endp->scheduler)) |
| 400 | kref_put(&endp->kref, u132_endp_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | static inline void u132_monitor_put_kref(struct u132 *u132) |
| 404 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 405 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) |
| 409 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 410 | if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
| 411 | kref_get(&u132->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) |
| 415 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 416 | if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
| 417 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | static void u132_monitor_cancel_work(struct u132 *u132) |
| 421 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 422 | if (cancel_delayed_work(&u132->monitor)) |
| 423 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 424 | } |
| 425 | |
| 426 | static int read_roothub_info(struct u132 *u132) |
| 427 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 428 | u32 revision; |
| 429 | int retval; |
| 430 | retval = u132_read_pcimem(u132, revision, &revision); |
| 431 | if (retval) { |
| 432 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
| 433 | "ntrol\n", retval); |
| 434 | return retval; |
| 435 | } else if ((revision & 0xFF) == 0x10) { |
| 436 | } else if ((revision & 0xFF) == 0x11) { |
| 437 | } else { |
| 438 | dev_err(&u132->platform_dev->dev, "device revision is not valid" |
| 439 | " %08X\n", revision); |
| 440 | return -ENODEV; |
| 441 | } |
| 442 | retval = u132_read_pcimem(u132, control, &u132->hc_control); |
| 443 | if (retval) { |
| 444 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
| 445 | "ntrol\n", retval); |
| 446 | return retval; |
| 447 | } |
| 448 | retval = u132_read_pcimem(u132, roothub.status, |
| 449 | &u132->hc_roothub_status); |
| 450 | if (retval) { |
| 451 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
| 452 | "g roothub.status\n", retval); |
| 453 | return retval; |
| 454 | } |
| 455 | retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); |
| 456 | if (retval) { |
| 457 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
| 458 | "g roothub.a\n", retval); |
| 459 | return retval; |
| 460 | } |
| 461 | { |
| 462 | int I = u132->num_ports; |
| 463 | int i = 0; |
| 464 | while (I-- > 0) { |
| 465 | retval = u132_read_pcimem(u132, roothub.portstatus[i], |
| 466 | &u132->hc_roothub_portstatus[i]); |
| 467 | if (retval) { |
| 468 | dev_err(&u132->platform_dev->dev, "error %d acc" |
| 469 | "essing device roothub.portstatus[%d]\n" |
| 470 | , retval, i); |
| 471 | return retval; |
| 472 | } else |
| 473 | i += 1; |
| 474 | } |
| 475 | } |
| 476 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 477 | } |
| 478 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 479 | static void u132_hcd_monitor_work(struct work_struct *work) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 480 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 481 | struct u132 *u132 = container_of(work, struct u132, monitor.work); |
| 482 | if (u132->going > 1) { |
| 483 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 484 | , u132->going); |
| 485 | u132_monitor_put_kref(u132); |
| 486 | return; |
| 487 | } else if (u132->going > 0) { |
| 488 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 489 | u132_monitor_put_kref(u132); |
| 490 | return; |
| 491 | } else { |
| 492 | int retval; |
| 493 | mutex_lock(&u132->sw_lock); |
| 494 | retval = read_roothub_info(u132); |
| 495 | if (retval) { |
| 496 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 497 | u132_disable(u132); |
| 498 | u132->going = 1; |
| 499 | mutex_unlock(&u132->sw_lock); |
| 500 | usb_hc_died(hcd); |
| 501 | ftdi_elan_gone_away(u132->platform_dev); |
| 502 | u132_monitor_put_kref(u132); |
| 503 | return; |
| 504 | } else { |
| 505 | u132_monitor_requeue_work(u132, 500); |
| 506 | mutex_unlock(&u132->sw_lock); |
| 507 | return; |
| 508 | } |
| 509 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 510 | } |
| 511 | |
| 512 | static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 513 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 514 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 515 | struct u132_ring *ring; |
| 516 | unsigned long irqs; |
| 517 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 518 | urb->error_count = 0; |
| 519 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 520 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 521 | endp->queue_next += 1; |
| 522 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
| 523 | endp->active = 0; |
| 524 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 525 | } else { |
| 526 | struct list_head *next = endp->urb_more.next; |
| 527 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
| 528 | urb_more); |
| 529 | list_del(next); |
| 530 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| 531 | urbq->urb; |
| 532 | endp->active = 0; |
| 533 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 534 | kfree(urbq); |
| 535 | } |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 536 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 537 | ring = endp->ring; |
| 538 | ring->in_use = 0; |
| 539 | u132_ring_cancel_work(u132, ring); |
| 540 | u132_ring_queue_work(u132, ring, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 541 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 542 | u132_endp_put_kref(u132, endp); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 543 | usb_hcd_giveback_urb(hcd, urb, status); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 544 | } |
| 545 | |
| 546 | static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 547 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 548 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 549 | u132_endp_put_kref(u132, endp); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 553 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 554 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 555 | unsigned long irqs; |
| 556 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 557 | urb->error_count = 0; |
| 558 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 559 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 560 | endp->queue_next += 1; |
| 561 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
| 562 | endp->active = 0; |
| 563 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 564 | } else { |
| 565 | struct list_head *next = endp->urb_more.next; |
| 566 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
| 567 | urb_more); |
| 568 | list_del(next); |
| 569 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| 570 | urbq->urb; |
| 571 | endp->active = 0; |
| 572 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 573 | kfree(urbq); |
Joe Perches | 7f26b3a | 2010-08-04 10:40:08 -0700 | [diff] [blame] | 574 | } |
| 575 | usb_hcd_giveback_urb(hcd, urb, status); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 576 | } |
| 577 | |
| 578 | static inline int edset_input(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 579 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 580 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 581 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 582 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 583 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 584 | return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
| 585 | urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 589 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 590 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 591 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 592 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 593 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 594 | return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
| 595 | urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 596 | } |
| 597 | |
| 598 | static inline int edset_single(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 599 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 600 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 601 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 602 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 603 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 604 | return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
| 605 | endp, urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 606 | } |
| 607 | |
| 608 | static inline int edset_output(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 609 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 610 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 611 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 612 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 613 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 614 | return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
| 615 | endp, urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 616 | } |
| 617 | |
| 618 | |
| 619 | /* |
| 620 | * must not LOCK sw_lock |
| 621 | * |
| 622 | */ |
| 623 | static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 624 | int len, int toggle_bits, int error_count, int condition_code, |
| 625 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 626 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 627 | struct u132_endp *endp = data; |
| 628 | struct u132 *u132 = endp->u132; |
| 629 | u8 address = u132->addr[endp->usb_addr].address; |
| 630 | struct u132_udev *udev = &u132->udev[address]; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 631 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 632 | if (u132->going > 1) { |
| 633 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 634 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 635 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 636 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 637 | return; |
| 638 | } else if (endp->dequeueing) { |
| 639 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 640 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 641 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 642 | return; |
| 643 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 644 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 645 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 646 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 647 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 648 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 649 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 650 | struct u132_ring *ring = endp->ring; |
| 651 | u8 *u = urb->transfer_buffer + urb->actual_length; |
| 652 | u8 *b = buf; |
| 653 | int L = len; |
| 654 | |
| 655 | while (L-- > 0) |
| 656 | *u++ = *b++; |
| 657 | |
| 658 | urb->actual_length += len; |
| 659 | if ((condition_code == TD_CC_NOERROR) && |
| 660 | (urb->transfer_buffer_length > urb->actual_length)) { |
| 661 | endp->toggle_bits = toggle_bits; |
| 662 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 663 | 1 & toggle_bits); |
| 664 | if (urb->actual_length > 0) { |
| 665 | int retval; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 666 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 667 | retval = edset_single(u132, ring, endp, urb, |
| 668 | address, endp->toggle_bits, |
| 669 | u132_hcd_interrupt_recv); |
| 670 | if (retval != 0) |
| 671 | u132_hcd_giveback_urb(u132, endp, urb, |
| 672 | retval); |
| 673 | } else { |
| 674 | ring->in_use = 0; |
| 675 | endp->active = 0; |
| 676 | endp->jiffies = jiffies + |
| 677 | msecs_to_jiffies(urb->interval); |
| 678 | u132_ring_cancel_work(u132, ring); |
| 679 | u132_ring_queue_work(u132, ring, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 680 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 681 | u132_endp_put_kref(u132, endp); |
| 682 | } |
| 683 | return; |
| 684 | } else if ((condition_code == TD_DATAUNDERRUN) && |
| 685 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
| 686 | endp->toggle_bits = toggle_bits; |
| 687 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 688 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 689 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 690 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 691 | return; |
| 692 | } else { |
| 693 | if (condition_code == TD_CC_NOERROR) { |
| 694 | endp->toggle_bits = toggle_bits; |
| 695 | usb_settoggle(udev->usb_device, endp->usb_endp, |
| 696 | 0, 1 & toggle_bits); |
| 697 | } else if (condition_code == TD_CC_STALL) { |
| 698 | endp->toggle_bits = 0x2; |
| 699 | usb_settoggle(udev->usb_device, endp->usb_endp, |
| 700 | 0, 0); |
| 701 | } else { |
| 702 | endp->toggle_bits = 0x2; |
| 703 | usb_settoggle(udev->usb_device, endp->usb_endp, |
| 704 | 0, 0); |
| 705 | dev_err(&u132->platform_dev->dev, "urb=%p givin" |
| 706 | "g back INTERRUPT %s\n", urb, |
| 707 | cc_to_text[condition_code]); |
| 708 | } |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 709 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 710 | u132_hcd_giveback_urb(u132, endp, urb, |
| 711 | cc_to_error[condition_code]); |
| 712 | return; |
| 713 | } |
| 714 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 715 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 716 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 717 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 718 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 719 | return; |
| 720 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 724 | int len, int toggle_bits, int error_count, int condition_code, |
| 725 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 726 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 727 | struct u132_endp *endp = data; |
| 728 | struct u132 *u132 = endp->u132; |
| 729 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 730 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 731 | if (u132->going > 1) { |
| 732 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 733 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 734 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 735 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 736 | return; |
| 737 | } else if (endp->dequeueing) { |
| 738 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 739 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 740 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 741 | return; |
| 742 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 743 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 744 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 745 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 746 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 747 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 748 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 749 | struct u132_ring *ring = endp->ring; |
| 750 | urb->actual_length += len; |
| 751 | endp->toggle_bits = toggle_bits; |
| 752 | if (urb->transfer_buffer_length > urb->actual_length) { |
| 753 | int retval; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 754 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 755 | retval = edset_output(u132, ring, endp, urb, address, |
| 756 | endp->toggle_bits, u132_hcd_bulk_output_sent); |
| 757 | if (retval != 0) |
| 758 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 759 | return; |
| 760 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 761 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 762 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 763 | return; |
| 764 | } |
| 765 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 766 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 767 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 768 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 769 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 770 | return; |
| 771 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 775 | int len, int toggle_bits, int error_count, int condition_code, |
| 776 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 777 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 778 | struct u132_endp *endp = data; |
| 779 | struct u132 *u132 = endp->u132; |
| 780 | u8 address = u132->addr[endp->usb_addr].address; |
| 781 | struct u132_udev *udev = &u132->udev[address]; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 782 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 783 | if (u132->going > 1) { |
| 784 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 785 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 786 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 787 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 788 | return; |
| 789 | } else if (endp->dequeueing) { |
| 790 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 791 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 792 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 793 | return; |
| 794 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 795 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 796 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 797 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 798 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 799 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 800 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 801 | struct u132_ring *ring = endp->ring; |
| 802 | u8 *u = urb->transfer_buffer + urb->actual_length; |
| 803 | u8 *b = buf; |
| 804 | int L = len; |
| 805 | |
| 806 | while (L-- > 0) |
| 807 | *u++ = *b++; |
| 808 | |
| 809 | urb->actual_length += len; |
| 810 | if ((condition_code == TD_CC_NOERROR) && |
| 811 | (urb->transfer_buffer_length > urb->actual_length)) { |
| 812 | int retval; |
| 813 | endp->toggle_bits = toggle_bits; |
| 814 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 815 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 816 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 817 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 818 | ring->number, endp, urb, address, |
| 819 | endp->usb_endp, endp->toggle_bits, |
| 820 | u132_hcd_bulk_input_recv); |
| 821 | if (retval != 0) |
| 822 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 823 | return; |
| 824 | } else if (condition_code == TD_CC_NOERROR) { |
| 825 | endp->toggle_bits = toggle_bits; |
| 826 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 827 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 828 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 829 | u132_hcd_giveback_urb(u132, endp, urb, |
| 830 | cc_to_error[condition_code]); |
| 831 | return; |
| 832 | } else if ((condition_code == TD_DATAUNDERRUN) && |
| 833 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
| 834 | endp->toggle_bits = toggle_bits; |
| 835 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 836 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 837 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 838 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 839 | return; |
| 840 | } else if (condition_code == TD_DATAUNDERRUN) { |
| 841 | endp->toggle_bits = toggle_bits; |
| 842 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 843 | 1 & toggle_bits); |
| 844 | dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" |
| 845 | ") giving back BULK IN %s\n", urb, |
| 846 | cc_to_text[condition_code]); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 847 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 848 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 849 | return; |
| 850 | } else if (condition_code == TD_CC_STALL) { |
| 851 | endp->toggle_bits = 0x2; |
| 852 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 853 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 854 | u132_hcd_giveback_urb(u132, endp, urb, |
| 855 | cc_to_error[condition_code]); |
| 856 | return; |
| 857 | } else { |
| 858 | endp->toggle_bits = 0x2; |
| 859 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
| 860 | dev_err(&u132->platform_dev->dev, "urb=%p giving back B" |
| 861 | "ULK IN code=%d %s\n", urb, condition_code, |
| 862 | cc_to_text[condition_code]); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 863 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 864 | u132_hcd_giveback_urb(u132, endp, urb, |
| 865 | cc_to_error[condition_code]); |
| 866 | return; |
| 867 | } |
| 868 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 869 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 870 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 871 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 872 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 873 | return; |
| 874 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 875 | } |
| 876 | |
| 877 | static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 878 | int len, int toggle_bits, int error_count, int condition_code, |
| 879 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 880 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 881 | struct u132_endp *endp = data; |
| 882 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 883 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 884 | if (u132->going > 1) { |
| 885 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 886 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 887 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 888 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 889 | return; |
| 890 | } else if (endp->dequeueing) { |
| 891 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 892 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 893 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 894 | return; |
| 895 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 896 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 897 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 898 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 899 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 900 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 901 | } else if (!urb->unlinked) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 902 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 903 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 904 | return; |
| 905 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 906 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 907 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 908 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 909 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 910 | return; |
| 911 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 912 | } |
| 913 | |
| 914 | static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 915 | int len, int toggle_bits, int error_count, int condition_code, |
| 916 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 917 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 918 | struct u132_endp *endp = data; |
| 919 | struct u132 *u132 = endp->u132; |
| 920 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 921 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 922 | if (u132->going > 1) { |
| 923 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 924 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 925 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 926 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 927 | return; |
| 928 | } else if (endp->dequeueing) { |
| 929 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 930 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 931 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 932 | return; |
| 933 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 934 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 935 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 936 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 937 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 938 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 939 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 940 | struct u132_ring *ring = endp->ring; |
| 941 | u8 *u = urb->transfer_buffer; |
| 942 | u8 *b = buf; |
| 943 | int L = len; |
| 944 | |
| 945 | while (L-- > 0) |
| 946 | *u++ = *b++; |
| 947 | |
| 948 | urb->actual_length = len; |
| 949 | if ((condition_code == TD_CC_NOERROR) || ((condition_code == |
| 950 | TD_DATAUNDERRUN) && ((urb->transfer_flags & |
| 951 | URB_SHORT_NOT_OK) == 0))) { |
| 952 | int retval; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 953 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 954 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
| 955 | ring->number, endp, urb, address, |
| 956 | endp->usb_endp, 0x3, |
| 957 | u132_hcd_configure_empty_sent); |
| 958 | if (retval != 0) |
| 959 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 960 | return; |
| 961 | } else if (condition_code == TD_CC_STALL) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 962 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 963 | dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
| 964 | "NPUT STALL urb %p\n", urb); |
| 965 | u132_hcd_giveback_urb(u132, endp, urb, |
| 966 | cc_to_error[condition_code]); |
| 967 | return; |
| 968 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 969 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 970 | dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
| 971 | "PUT %s urb %p\n", cc_to_text[condition_code], |
| 972 | urb); |
| 973 | u132_hcd_giveback_urb(u132, endp, urb, |
| 974 | cc_to_error[condition_code]); |
| 975 | return; |
| 976 | } |
| 977 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 978 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 979 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 980 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 981 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 982 | return; |
| 983 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 984 | } |
| 985 | |
| 986 | static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 987 | int len, int toggle_bits, int error_count, int condition_code, |
| 988 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 989 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 990 | struct u132_endp *endp = data; |
| 991 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 992 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 993 | if (u132->going > 1) { |
| 994 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 995 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 996 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 997 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 998 | return; |
| 999 | } else if (endp->dequeueing) { |
| 1000 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1001 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1002 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1003 | return; |
| 1004 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1005 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1006 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1007 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1008 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1009 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1010 | } else if (!urb->unlinked) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1011 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1012 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 1013 | return; |
| 1014 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1015 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1016 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1017 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1018 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1019 | return; |
| 1020 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1021 | } |
| 1022 | |
| 1023 | static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1024 | int len, int toggle_bits, int error_count, int condition_code, |
| 1025 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1026 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1027 | struct u132_endp *endp = data; |
| 1028 | struct u132 *u132 = endp->u132; |
| 1029 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1030 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1031 | if (u132->going > 1) { |
| 1032 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1033 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1034 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1035 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1036 | return; |
| 1037 | } else if (endp->dequeueing) { |
| 1038 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1039 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1040 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1041 | return; |
| 1042 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1043 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1044 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1045 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1046 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1047 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1048 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1049 | if (usb_pipein(urb->pipe)) { |
| 1050 | int retval; |
| 1051 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1052 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1053 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1054 | ring->number, endp, urb, address, |
| 1055 | endp->usb_endp, 0, |
| 1056 | u132_hcd_configure_input_recv); |
| 1057 | if (retval != 0) |
| 1058 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1059 | return; |
| 1060 | } else { |
| 1061 | int retval; |
| 1062 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1063 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1064 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1065 | ring->number, endp, urb, address, |
| 1066 | endp->usb_endp, 0, |
| 1067 | u132_hcd_configure_empty_recv); |
| 1068 | if (retval != 0) |
| 1069 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1070 | return; |
| 1071 | } |
| 1072 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1073 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1074 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1075 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1076 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1077 | return; |
| 1078 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1079 | } |
| 1080 | |
| 1081 | static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1082 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
| 1083 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1084 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1085 | struct u132_endp *endp = data; |
| 1086 | struct u132 *u132 = endp->u132; |
| 1087 | u8 address = u132->addr[endp->usb_addr].address; |
| 1088 | struct u132_udev *udev = &u132->udev[address]; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1089 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1090 | if (u132->going > 1) { |
| 1091 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1092 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1093 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1094 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1095 | return; |
| 1096 | } else if (endp->dequeueing) { |
| 1097 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1098 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1099 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1100 | return; |
| 1101 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1102 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1103 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1104 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1105 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1106 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1107 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1108 | u132->addr[0].address = 0; |
| 1109 | endp->usb_addr = udev->usb_addr; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1110 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1111 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 1112 | return; |
| 1113 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1114 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1115 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1116 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1117 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1118 | return; |
| 1119 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1120 | } |
| 1121 | |
| 1122 | static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1123 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
| 1124 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1125 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1126 | struct u132_endp *endp = data; |
| 1127 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1128 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1129 | if (u132->going > 1) { |
| 1130 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1131 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1132 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1133 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1134 | return; |
| 1135 | } else if (endp->dequeueing) { |
| 1136 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1137 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1138 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1139 | return; |
| 1140 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1141 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1142 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1143 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1144 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1145 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1146 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1147 | int retval; |
| 1148 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1149 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1150 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1151 | ring->number, endp, urb, 0, endp->usb_endp, 0, |
| 1152 | u132_hcd_enumeration_empty_recv); |
| 1153 | if (retval != 0) |
| 1154 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1155 | return; |
| 1156 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1157 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1158 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1159 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1160 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1161 | return; |
| 1162 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1163 | } |
| 1164 | |
| 1165 | static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1166 | int len, int toggle_bits, int error_count, int condition_code, |
| 1167 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1168 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1169 | struct u132_endp *endp = data; |
| 1170 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1171 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1172 | if (u132->going > 1) { |
| 1173 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1174 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1175 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1176 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1177 | return; |
| 1178 | } else if (endp->dequeueing) { |
| 1179 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1180 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1181 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1182 | return; |
| 1183 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1184 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1185 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1186 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1187 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1188 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1189 | } else if (!urb->unlinked) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1190 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1191 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 1192 | return; |
| 1193 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1194 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1195 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1196 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1197 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1198 | return; |
| 1199 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1200 | } |
| 1201 | |
| 1202 | static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1203 | int len, int toggle_bits, int error_count, int condition_code, |
| 1204 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1205 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1206 | struct u132_endp *endp = data; |
| 1207 | struct u132 *u132 = endp->u132; |
| 1208 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1209 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1210 | if (u132->going > 1) { |
| 1211 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1212 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1213 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1214 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1215 | return; |
| 1216 | } else if (endp->dequeueing) { |
| 1217 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1218 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1219 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1220 | return; |
| 1221 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1222 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1223 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1224 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1225 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1226 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1227 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1228 | int retval; |
| 1229 | struct u132_ring *ring = endp->ring; |
| 1230 | u8 *u = urb->transfer_buffer; |
| 1231 | u8 *b = buf; |
| 1232 | int L = len; |
| 1233 | |
| 1234 | while (L-- > 0) |
| 1235 | *u++ = *b++; |
| 1236 | |
| 1237 | urb->actual_length = len; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1238 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1239 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
| 1240 | ring->number, endp, urb, address, endp->usb_endp, 0x3, |
| 1241 | u132_hcd_initial_empty_sent); |
| 1242 | if (retval != 0) |
| 1243 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1244 | return; |
| 1245 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1246 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1247 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1248 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1249 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1250 | return; |
| 1251 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1252 | } |
| 1253 | |
| 1254 | static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1255 | int len, int toggle_bits, int error_count, int condition_code, |
| 1256 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1257 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1258 | struct u132_endp *endp = data; |
| 1259 | struct u132 *u132 = endp->u132; |
| 1260 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1261 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1262 | if (u132->going > 1) { |
| 1263 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1264 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1265 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1266 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1267 | return; |
| 1268 | } else if (endp->dequeueing) { |
| 1269 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1270 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1271 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1272 | return; |
| 1273 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1274 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1275 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1276 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1277 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1278 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1279 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1280 | int retval; |
| 1281 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1282 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1283 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1284 | ring->number, endp, urb, address, endp->usb_endp, 0, |
| 1285 | u132_hcd_initial_input_recv); |
| 1286 | if (retval != 0) |
| 1287 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1288 | return; |
| 1289 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1290 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1291 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1292 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1293 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1294 | return; |
| 1295 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1296 | } |
| 1297 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1298 | /* |
| 1299 | * this work function is only executed from the work queue |
| 1300 | * |
| 1301 | */ |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1302 | static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1303 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1304 | struct u132_ring *ring = |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1305 | container_of(work, struct u132_ring, scheduler.work); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1306 | struct u132 *u132 = ring->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1307 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1308 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1309 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1310 | u132_ring_put_kref(u132, ring); |
| 1311 | return; |
| 1312 | } else if (ring->curr_endp) { |
| 1313 | struct u132_endp *last_endp = ring->curr_endp; |
| 1314 | struct list_head *scan; |
| 1315 | struct list_head *head = &last_endp->endp_ring; |
| 1316 | unsigned long wakeup = 0; |
| 1317 | list_for_each(scan, head) { |
| 1318 | struct u132_endp *endp = list_entry(scan, |
| 1319 | struct u132_endp, endp_ring); |
| 1320 | if (endp->queue_next == endp->queue_last) { |
| 1321 | } else if ((endp->delayed == 0) |
| 1322 | || time_after_eq(jiffies, endp->jiffies)) { |
| 1323 | ring->curr_endp = endp; |
| 1324 | u132_endp_cancel_work(u132, last_endp); |
| 1325 | u132_endp_queue_work(u132, last_endp, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1326 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1327 | u132_ring_put_kref(u132, ring); |
| 1328 | return; |
| 1329 | } else { |
| 1330 | unsigned long delta = endp->jiffies - jiffies; |
| 1331 | if (delta > wakeup) |
| 1332 | wakeup = delta; |
| 1333 | } |
| 1334 | } |
| 1335 | if (last_endp->queue_next == last_endp->queue_last) { |
| 1336 | } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, |
| 1337 | last_endp->jiffies)) { |
| 1338 | u132_endp_cancel_work(u132, last_endp); |
| 1339 | u132_endp_queue_work(u132, last_endp, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1340 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1341 | u132_ring_put_kref(u132, ring); |
| 1342 | return; |
| 1343 | } else { |
| 1344 | unsigned long delta = last_endp->jiffies - jiffies; |
| 1345 | if (delta > wakeup) |
| 1346 | wakeup = delta; |
| 1347 | } |
| 1348 | if (wakeup > 0) { |
| 1349 | u132_ring_requeue_work(u132, ring, wakeup); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1350 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1351 | return; |
| 1352 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1353 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1354 | u132_ring_put_kref(u132, ring); |
| 1355 | return; |
| 1356 | } |
| 1357 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1358 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1359 | u132_ring_put_kref(u132, ring); |
| 1360 | return; |
| 1361 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1362 | } |
| 1363 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1364 | static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1365 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1366 | struct u132_ring *ring; |
| 1367 | struct u132_endp *endp = |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1368 | container_of(work, struct u132_endp, scheduler.work); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1369 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1370 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1371 | ring = endp->ring; |
| 1372 | if (endp->edset_flush) { |
| 1373 | endp->edset_flush = 0; |
| 1374 | if (endp->dequeueing) |
| 1375 | usb_ftdi_elan_edset_flush(u132->platform_dev, |
| 1376 | ring->number, endp); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1377 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1378 | u132_endp_put_kref(u132, endp); |
| 1379 | return; |
| 1380 | } else if (endp->active) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1381 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1382 | u132_endp_put_kref(u132, endp); |
| 1383 | return; |
| 1384 | } else if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1385 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1386 | u132_endp_put_kref(u132, endp); |
| 1387 | return; |
| 1388 | } else if (endp->queue_next == endp->queue_last) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1389 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1390 | u132_endp_put_kref(u132, endp); |
| 1391 | return; |
| 1392 | } else if (endp->pipetype == PIPE_INTERRUPT) { |
| 1393 | u8 address = u132->addr[endp->usb_addr].address; |
| 1394 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1395 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1396 | u132_endp_put_kref(u132, endp); |
| 1397 | return; |
| 1398 | } else { |
| 1399 | int retval; |
| 1400 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1401 | endp->queue_next]; |
| 1402 | endp->active = 1; |
| 1403 | ring->curr_endp = endp; |
| 1404 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1405 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1406 | retval = edset_single(u132, ring, endp, urb, address, |
| 1407 | endp->toggle_bits, u132_hcd_interrupt_recv); |
| 1408 | if (retval != 0) |
| 1409 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1410 | return; |
| 1411 | } |
| 1412 | } else if (endp->pipetype == PIPE_CONTROL) { |
| 1413 | u8 address = u132->addr[endp->usb_addr].address; |
| 1414 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1415 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1416 | u132_endp_put_kref(u132, endp); |
| 1417 | return; |
| 1418 | } else if (address == 0) { |
| 1419 | int retval; |
| 1420 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1421 | endp->queue_next]; |
| 1422 | endp->active = 1; |
| 1423 | ring->curr_endp = endp; |
| 1424 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1425 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1426 | retval = edset_setup(u132, ring, endp, urb, address, |
| 1427 | 0x2, u132_hcd_initial_setup_sent); |
| 1428 | if (retval != 0) |
| 1429 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1430 | return; |
| 1431 | } else if (endp->usb_addr == 0) { |
| 1432 | int retval; |
| 1433 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1434 | endp->queue_next]; |
| 1435 | endp->active = 1; |
| 1436 | ring->curr_endp = endp; |
| 1437 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1438 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1439 | retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
| 1440 | u132_hcd_enumeration_address_sent); |
| 1441 | if (retval != 0) |
| 1442 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1443 | return; |
| 1444 | } else { |
| 1445 | int retval; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1446 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1447 | endp->queue_next]; |
Randy Dunlap | 1d6ec81 | 2010-05-06 16:46:03 -0700 | [diff] [blame] | 1448 | address = u132->addr[endp->usb_addr].address; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1449 | endp->active = 1; |
| 1450 | ring->curr_endp = endp; |
| 1451 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1452 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1453 | retval = edset_setup(u132, ring, endp, urb, address, |
| 1454 | 0x2, u132_hcd_configure_setup_sent); |
| 1455 | if (retval != 0) |
| 1456 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1457 | return; |
| 1458 | } |
| 1459 | } else { |
| 1460 | if (endp->input) { |
| 1461 | u8 address = u132->addr[endp->usb_addr].address; |
| 1462 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1463 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1464 | u132_endp_put_kref(u132, endp); |
| 1465 | return; |
| 1466 | } else { |
| 1467 | int retval; |
| 1468 | struct urb *urb = endp->urb_list[ |
| 1469 | ENDP_QUEUE_MASK & endp->queue_next]; |
| 1470 | endp->active = 1; |
| 1471 | ring->curr_endp = endp; |
| 1472 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1473 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1474 | retval = edset_input(u132, ring, endp, urb, |
| 1475 | address, endp->toggle_bits, |
| 1476 | u132_hcd_bulk_input_recv); |
| 1477 | if (retval == 0) { |
| 1478 | } else |
| 1479 | u132_hcd_giveback_urb(u132, endp, urb, |
| 1480 | retval); |
| 1481 | return; |
| 1482 | } |
| 1483 | } else { /* output pipe */ |
| 1484 | u8 address = u132->addr[endp->usb_addr].address; |
| 1485 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1486 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1487 | u132_endp_put_kref(u132, endp); |
| 1488 | return; |
| 1489 | } else { |
| 1490 | int retval; |
| 1491 | struct urb *urb = endp->urb_list[ |
| 1492 | ENDP_QUEUE_MASK & endp->queue_next]; |
| 1493 | endp->active = 1; |
| 1494 | ring->curr_endp = endp; |
| 1495 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1496 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1497 | retval = edset_output(u132, ring, endp, urb, |
| 1498 | address, endp->toggle_bits, |
| 1499 | u132_hcd_bulk_output_sent); |
| 1500 | if (retval == 0) { |
| 1501 | } else |
| 1502 | u132_hcd_giveback_urb(u132, endp, urb, |
| 1503 | retval); |
| 1504 | return; |
| 1505 | } |
| 1506 | } |
| 1507 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1508 | } |
Gabriel C | 5b570d4 | 2007-07-30 12:57:03 +0200 | [diff] [blame] | 1509 | #ifdef CONFIG_PM |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1510 | |
| 1511 | static void port_power(struct u132 *u132, int pn, int is_on) |
| 1512 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1513 | u132->port[pn].power = is_on; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1514 | } |
| 1515 | |
Gabriel C | 5b570d4 | 2007-07-30 12:57:03 +0200 | [diff] [blame] | 1516 | #endif |
| 1517 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1518 | static void u132_power(struct u132 *u132, int is_on) |
| 1519 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1520 | struct usb_hcd *hcd = u132_to_hcd(u132) |
| 1521 | ; /* hub is inactive unless the port is powered */ |
| 1522 | if (is_on) { |
| 1523 | if (u132->power) |
| 1524 | return; |
| 1525 | u132->power = 1; |
| 1526 | } else { |
| 1527 | u132->power = 0; |
| 1528 | hcd->state = HC_STATE_HALT; |
| 1529 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1530 | } |
| 1531 | |
| 1532 | static int u132_periodic_reinit(struct u132 *u132) |
| 1533 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1534 | int retval; |
| 1535 | u32 fi = u132->hc_fminterval & 0x03fff; |
| 1536 | u32 fit; |
| 1537 | u32 fminterval; |
| 1538 | retval = u132_read_pcimem(u132, fminterval, &fminterval); |
| 1539 | if (retval) |
| 1540 | return retval; |
| 1541 | fit = fminterval & FIT; |
| 1542 | retval = u132_write_pcimem(u132, fminterval, |
| 1543 | (fit ^ FIT) | u132->hc_fminterval); |
| 1544 | if (retval) |
| 1545 | return retval; |
| 1546 | retval = u132_write_pcimem(u132, periodicstart, |
| 1547 | ((9 * fi) / 10) & 0x3fff); |
| 1548 | if (retval) |
| 1549 | return retval; |
| 1550 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1551 | } |
| 1552 | |
| 1553 | static char *hcfs2string(int state) |
| 1554 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1555 | switch (state) { |
| 1556 | case OHCI_USB_RESET: |
| 1557 | return "reset"; |
| 1558 | case OHCI_USB_RESUME: |
| 1559 | return "resume"; |
| 1560 | case OHCI_USB_OPER: |
| 1561 | return "operational"; |
| 1562 | case OHCI_USB_SUSPEND: |
| 1563 | return "suspend"; |
| 1564 | } |
| 1565 | return "?"; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1566 | } |
| 1567 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1568 | static int u132_init(struct u132 *u132) |
| 1569 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1570 | int retval; |
| 1571 | u32 control; |
| 1572 | u132_disable(u132); |
| 1573 | u132->next_statechange = jiffies; |
| 1574 | retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); |
| 1575 | if (retval) |
| 1576 | return retval; |
| 1577 | retval = u132_read_pcimem(u132, control, &control); |
| 1578 | if (retval) |
| 1579 | return retval; |
| 1580 | if (u132->num_ports == 0) { |
| 1581 | u32 rh_a = -1; |
| 1582 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
| 1583 | if (retval) |
| 1584 | return retval; |
| 1585 | u132->num_ports = rh_a & RH_A_NDP; |
| 1586 | retval = read_roothub_info(u132); |
| 1587 | if (retval) |
| 1588 | return retval; |
| 1589 | } |
| 1590 | if (u132->num_ports > MAX_U132_PORTS) |
| 1591 | return -EINVAL; |
| 1592 | |
| 1593 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1594 | } |
| 1595 | |
| 1596 | |
| 1597 | /* Start an OHCI controller, set the BUS operational |
| 1598 | * resets USB and controller |
| 1599 | * enable interrupts |
| 1600 | */ |
| 1601 | static int u132_run(struct u132 *u132) |
| 1602 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1603 | int retval; |
| 1604 | u32 control; |
| 1605 | u32 status; |
| 1606 | u32 fminterval; |
| 1607 | u32 periodicstart; |
| 1608 | u32 cmdstatus; |
| 1609 | u32 roothub_a; |
| 1610 | int mask = OHCI_INTR_INIT; |
| 1611 | int first = u132->hc_fminterval == 0; |
| 1612 | int sleep_time = 0; |
| 1613 | int reset_timeout = 30; /* ... allow extra time */ |
| 1614 | u132_disable(u132); |
| 1615 | if (first) { |
| 1616 | u32 temp; |
| 1617 | retval = u132_read_pcimem(u132, fminterval, &temp); |
| 1618 | if (retval) |
| 1619 | return retval; |
| 1620 | u132->hc_fminterval = temp & 0x3fff; |
| 1621 | u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; |
| 1622 | } |
| 1623 | retval = u132_read_pcimem(u132, control, &u132->hc_control); |
| 1624 | if (retval) |
| 1625 | return retval; |
| 1626 | dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " |
| 1627 | "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), |
| 1628 | u132->hc_control); |
| 1629 | switch (u132->hc_control & OHCI_CTRL_HCFS) { |
| 1630 | case OHCI_USB_OPER: |
| 1631 | sleep_time = 0; |
| 1632 | break; |
| 1633 | case OHCI_USB_SUSPEND: |
| 1634 | case OHCI_USB_RESUME: |
| 1635 | u132->hc_control &= OHCI_CTRL_RWC; |
| 1636 | u132->hc_control |= OHCI_USB_RESUME; |
| 1637 | sleep_time = 10; |
| 1638 | break; |
| 1639 | default: |
| 1640 | u132->hc_control &= OHCI_CTRL_RWC; |
| 1641 | u132->hc_control |= OHCI_USB_RESET; |
| 1642 | sleep_time = 50; |
| 1643 | break; |
| 1644 | } |
| 1645 | retval = u132_write_pcimem(u132, control, u132->hc_control); |
| 1646 | if (retval) |
| 1647 | return retval; |
| 1648 | retval = u132_read_pcimem(u132, control, &control); |
| 1649 | if (retval) |
| 1650 | return retval; |
| 1651 | msleep(sleep_time); |
| 1652 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
| 1653 | if (retval) |
| 1654 | return retval; |
| 1655 | if (!(roothub_a & RH_A_NPS)) { |
| 1656 | int temp; /* power down each port */ |
| 1657 | for (temp = 0; temp < u132->num_ports; temp++) { |
| 1658 | retval = u132_write_pcimem(u132, |
| 1659 | roothub.portstatus[temp], RH_PS_LSDA); |
| 1660 | if (retval) |
| 1661 | return retval; |
| 1662 | } |
| 1663 | } |
| 1664 | retval = u132_read_pcimem(u132, control, &control); |
| 1665 | if (retval) |
| 1666 | return retval; |
| 1667 | retry: |
| 1668 | retval = u132_read_pcimem(u132, cmdstatus, &status); |
| 1669 | if (retval) |
| 1670 | return retval; |
| 1671 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); |
| 1672 | if (retval) |
| 1673 | return retval; |
| 1674 | extra: { |
| 1675 | retval = u132_read_pcimem(u132, cmdstatus, &status); |
| 1676 | if (retval) |
| 1677 | return retval; |
| 1678 | if (0 != (status & OHCI_HCR)) { |
| 1679 | if (--reset_timeout == 0) { |
| 1680 | dev_err(&u132->platform_dev->dev, "USB HC reset" |
| 1681 | " timed out!\n"); |
| 1682 | return -ENODEV; |
| 1683 | } else { |
| 1684 | msleep(5); |
| 1685 | goto extra; |
| 1686 | } |
| 1687 | } |
| 1688 | } |
| 1689 | if (u132->flags & OHCI_QUIRK_INITRESET) { |
| 1690 | retval = u132_write_pcimem(u132, control, u132->hc_control); |
| 1691 | if (retval) |
| 1692 | return retval; |
| 1693 | retval = u132_read_pcimem(u132, control, &control); |
| 1694 | if (retval) |
| 1695 | return retval; |
| 1696 | } |
| 1697 | retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); |
| 1698 | if (retval) |
| 1699 | return retval; |
| 1700 | retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); |
| 1701 | if (retval) |
| 1702 | return retval; |
| 1703 | retval = u132_write_pcimem(u132, hcca, 0x00000000); |
| 1704 | if (retval) |
| 1705 | return retval; |
| 1706 | retval = u132_periodic_reinit(u132); |
| 1707 | if (retval) |
| 1708 | return retval; |
| 1709 | retval = u132_read_pcimem(u132, fminterval, &fminterval); |
| 1710 | if (retval) |
| 1711 | return retval; |
| 1712 | retval = u132_read_pcimem(u132, periodicstart, &periodicstart); |
| 1713 | if (retval) |
| 1714 | return retval; |
| 1715 | if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { |
| 1716 | if (!(u132->flags & OHCI_QUIRK_INITRESET)) { |
| 1717 | u132->flags |= OHCI_QUIRK_INITRESET; |
| 1718 | goto retry; |
| 1719 | } else |
| 1720 | dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" |
| 1721 | "\n", fminterval, periodicstart); |
| 1722 | } /* start controller operations */ |
| 1723 | u132->hc_control &= OHCI_CTRL_RWC; |
| 1724 | u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; |
| 1725 | retval = u132_write_pcimem(u132, control, u132->hc_control); |
| 1726 | if (retval) |
| 1727 | return retval; |
| 1728 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); |
| 1729 | if (retval) |
| 1730 | return retval; |
| 1731 | retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); |
| 1732 | if (retval) |
| 1733 | return retval; |
| 1734 | retval = u132_read_pcimem(u132, control, &control); |
| 1735 | if (retval) |
| 1736 | return retval; |
| 1737 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
| 1738 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); |
| 1739 | if (retval) |
| 1740 | return retval; |
| 1741 | retval = u132_write_pcimem(u132, intrstatus, mask); |
| 1742 | if (retval) |
| 1743 | return retval; |
| 1744 | retval = u132_write_pcimem(u132, intrdisable, |
| 1745 | OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | |
| 1746 | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | |
| 1747 | OHCI_INTR_SO); |
| 1748 | if (retval) |
| 1749 | return retval; /* handle root hub init quirks ... */ |
| 1750 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
| 1751 | if (retval) |
| 1752 | return retval; |
| 1753 | roothub_a &= ~(RH_A_PSM | RH_A_OCPM); |
| 1754 | if (u132->flags & OHCI_QUIRK_SUPERIO) { |
| 1755 | roothub_a |= RH_A_NOCP; |
| 1756 | roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); |
| 1757 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
| 1758 | if (retval) |
| 1759 | return retval; |
| 1760 | } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { |
| 1761 | roothub_a |= RH_A_NPS; |
| 1762 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
| 1763 | if (retval) |
| 1764 | return retval; |
| 1765 | } |
| 1766 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); |
| 1767 | if (retval) |
| 1768 | return retval; |
| 1769 | retval = u132_write_pcimem(u132, roothub.b, |
| 1770 | (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); |
| 1771 | if (retval) |
| 1772 | return retval; |
| 1773 | retval = u132_read_pcimem(u132, control, &control); |
| 1774 | if (retval) |
| 1775 | return retval; |
| 1776 | mdelay((roothub_a >> 23) & 0x1fe); |
| 1777 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
| 1778 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1779 | } |
| 1780 | |
| 1781 | static void u132_hcd_stop(struct usb_hcd *hcd) |
| 1782 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1783 | struct u132 *u132 = hcd_to_u132(hcd); |
| 1784 | if (u132->going > 1) { |
| 1785 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" |
| 1786 | "een removed %d\n", u132, hcd, u132->going); |
| 1787 | } else if (u132->going > 0) { |
| 1788 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
| 1789 | "ed\n", hcd); |
| 1790 | } else { |
| 1791 | mutex_lock(&u132->sw_lock); |
| 1792 | msleep(100); |
| 1793 | u132_power(u132, 0); |
| 1794 | mutex_unlock(&u132->sw_lock); |
| 1795 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1796 | } |
| 1797 | |
| 1798 | static int u132_hcd_start(struct usb_hcd *hcd) |
| 1799 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1800 | struct u132 *u132 = hcd_to_u132(hcd); |
| 1801 | if (u132->going > 1) { |
| 1802 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1803 | , u132->going); |
| 1804 | return -ENODEV; |
| 1805 | } else if (u132->going > 0) { |
| 1806 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 1807 | return -ESHUTDOWN; |
| 1808 | } else if (hcd->self.controller) { |
| 1809 | int retval; |
| 1810 | struct platform_device *pdev = |
| 1811 | to_platform_device(hcd->self.controller); |
| 1812 | u16 vendor = ((struct u132_platform_data *) |
| 1813 | (pdev->dev.platform_data))->vendor; |
| 1814 | u16 device = ((struct u132_platform_data *) |
| 1815 | (pdev->dev.platform_data))->device; |
| 1816 | mutex_lock(&u132->sw_lock); |
| 1817 | msleep(10); |
| 1818 | if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { |
| 1819 | u132->flags = OHCI_QUIRK_AMD756; |
| 1820 | } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { |
| 1821 | dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" |
| 1822 | "ounds unavailable\n"); |
| 1823 | } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) |
| 1824 | u132->flags |= OHCI_QUIRK_ZFMICRO; |
| 1825 | retval = u132_run(u132); |
| 1826 | if (retval) { |
| 1827 | u132_disable(u132); |
| 1828 | u132->going = 1; |
| 1829 | } |
| 1830 | msleep(100); |
| 1831 | mutex_unlock(&u132->sw_lock); |
| 1832 | return retval; |
| 1833 | } else { |
| 1834 | dev_err(&u132->platform_dev->dev, "platform_device missing\n"); |
| 1835 | return -ENODEV; |
| 1836 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1837 | } |
| 1838 | |
| 1839 | static int u132_hcd_reset(struct usb_hcd *hcd) |
| 1840 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1841 | struct u132 *u132 = hcd_to_u132(hcd); |
| 1842 | if (u132->going > 1) { |
| 1843 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1844 | , u132->going); |
| 1845 | return -ENODEV; |
| 1846 | } else if (u132->going > 0) { |
| 1847 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 1848 | return -ESHUTDOWN; |
| 1849 | } else { |
| 1850 | int retval; |
| 1851 | mutex_lock(&u132->sw_lock); |
| 1852 | retval = u132_init(u132); |
| 1853 | if (retval) { |
| 1854 | u132_disable(u132); |
| 1855 | u132->going = 1; |
| 1856 | } |
| 1857 | mutex_unlock(&u132->sw_lock); |
| 1858 | return retval; |
| 1859 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1860 | } |
| 1861 | |
| 1862 | static int create_endpoint_and_queue_int(struct u132 *u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1863 | struct u132_udev *udev, struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1864 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
| 1865 | gfp_t mem_flags) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1866 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1867 | struct u132_ring *ring; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1868 | unsigned long irqs; |
| 1869 | int rc; |
| 1870 | u8 endp_number; |
| 1871 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| 1872 | |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1873 | if (!endp) |
| 1874 | return -ENOMEM; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1875 | |
| 1876 | spin_lock_init(&endp->queue_lock.slock); |
| 1877 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| 1878 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| 1879 | if (rc) { |
| 1880 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 1881 | kfree(endp); |
| 1882 | return rc; |
| 1883 | } |
| 1884 | |
| 1885 | endp_number = ++u132->num_endpoints; |
| 1886 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1887 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| 1888 | INIT_LIST_HEAD(&endp->urb_more); |
| 1889 | ring = endp->ring = &u132->ring[0]; |
| 1890 | if (ring->curr_endp) { |
| 1891 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| 1892 | } else { |
| 1893 | INIT_LIST_HEAD(&endp->endp_ring); |
| 1894 | ring->curr_endp = endp; |
| 1895 | } |
| 1896 | ring->length += 1; |
| 1897 | endp->dequeueing = 0; |
| 1898 | endp->edset_flush = 0; |
| 1899 | endp->active = 0; |
| 1900 | endp->delayed = 0; |
| 1901 | endp->endp_number = endp_number; |
| 1902 | endp->u132 = u132; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1903 | endp->hep = urb->ep; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1904 | endp->pipetype = usb_pipetype(urb->pipe); |
| 1905 | u132_endp_init_kref(u132, endp); |
| 1906 | if (usb_pipein(urb->pipe)) { |
| 1907 | endp->toggle_bits = 0x2; |
| 1908 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
| 1909 | endp->input = 1; |
| 1910 | endp->output = 0; |
| 1911 | udev->endp_number_in[usb_endp] = endp_number; |
| 1912 | u132_udev_get_kref(u132, udev); |
| 1913 | } else { |
| 1914 | endp->toggle_bits = 0x2; |
| 1915 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
| 1916 | endp->input = 0; |
| 1917 | endp->output = 1; |
| 1918 | udev->endp_number_out[usb_endp] = endp_number; |
| 1919 | u132_udev_get_kref(u132, udev); |
| 1920 | } |
| 1921 | urb->hcpriv = u132; |
| 1922 | endp->delayed = 1; |
| 1923 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
| 1924 | endp->udev_number = address; |
| 1925 | endp->usb_addr = usb_addr; |
| 1926 | endp->usb_endp = usb_endp; |
| 1927 | endp->queue_size = 1; |
| 1928 | endp->queue_last = 0; |
| 1929 | endp->queue_next = 0; |
| 1930 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 1931 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 1932 | u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); |
| 1933 | return 0; |
| 1934 | } |
| 1935 | |
| 1936 | static int queue_int_on_old_endpoint(struct u132 *u132, |
| 1937 | struct u132_udev *udev, struct urb *urb, |
| 1938 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| 1939 | u8 usb_endp, u8 address) |
| 1940 | { |
| 1941 | urb->hcpriv = u132; |
| 1942 | endp->delayed = 1; |
| 1943 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
| 1944 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 1945 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 1946 | } else { |
| 1947 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
| 1948 | GFP_ATOMIC); |
| 1949 | if (urbq == NULL) { |
| 1950 | endp->queue_size -= 1; |
| 1951 | return -ENOMEM; |
| 1952 | } else { |
| 1953 | list_add_tail(&urbq->urb_more, &endp->urb_more); |
| 1954 | urbq->urb = urb; |
| 1955 | } |
| 1956 | } |
| 1957 | return 0; |
| 1958 | } |
| 1959 | |
| 1960 | static int create_endpoint_and_queue_bulk(struct u132 *u132, |
| 1961 | struct u132_udev *udev, struct urb *urb, |
| 1962 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
| 1963 | gfp_t mem_flags) |
| 1964 | { |
| 1965 | int ring_number; |
| 1966 | struct u132_ring *ring; |
| 1967 | unsigned long irqs; |
| 1968 | int rc; |
| 1969 | u8 endp_number; |
| 1970 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| 1971 | |
| 1972 | if (!endp) |
| 1973 | return -ENOMEM; |
| 1974 | |
| 1975 | spin_lock_init(&endp->queue_lock.slock); |
| 1976 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| 1977 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| 1978 | if (rc) { |
| 1979 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 1980 | kfree(endp); |
| 1981 | return rc; |
| 1982 | } |
| 1983 | |
| 1984 | endp_number = ++u132->num_endpoints; |
| 1985 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| 1986 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| 1987 | INIT_LIST_HEAD(&endp->urb_more); |
| 1988 | endp->dequeueing = 0; |
| 1989 | endp->edset_flush = 0; |
| 1990 | endp->active = 0; |
| 1991 | endp->delayed = 0; |
| 1992 | endp->endp_number = endp_number; |
| 1993 | endp->u132 = u132; |
| 1994 | endp->hep = urb->ep; |
| 1995 | endp->pipetype = usb_pipetype(urb->pipe); |
| 1996 | u132_endp_init_kref(u132, endp); |
| 1997 | if (usb_pipein(urb->pipe)) { |
| 1998 | endp->toggle_bits = 0x2; |
| 1999 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
| 2000 | ring_number = 3; |
| 2001 | endp->input = 1; |
| 2002 | endp->output = 0; |
| 2003 | udev->endp_number_in[usb_endp] = endp_number; |
| 2004 | u132_udev_get_kref(u132, udev); |
| 2005 | } else { |
| 2006 | endp->toggle_bits = 0x2; |
| 2007 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
| 2008 | ring_number = 2; |
| 2009 | endp->input = 0; |
| 2010 | endp->output = 1; |
| 2011 | udev->endp_number_out[usb_endp] = endp_number; |
| 2012 | u132_udev_get_kref(u132, udev); |
| 2013 | } |
| 2014 | ring = endp->ring = &u132->ring[ring_number - 1]; |
| 2015 | if (ring->curr_endp) { |
| 2016 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| 2017 | } else { |
| 2018 | INIT_LIST_HEAD(&endp->endp_ring); |
| 2019 | ring->curr_endp = endp; |
| 2020 | } |
| 2021 | ring->length += 1; |
| 2022 | urb->hcpriv = u132; |
| 2023 | endp->udev_number = address; |
| 2024 | endp->usb_addr = usb_addr; |
| 2025 | endp->usb_endp = usb_endp; |
| 2026 | endp->queue_size = 1; |
| 2027 | endp->queue_last = 0; |
| 2028 | endp->queue_next = 0; |
| 2029 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2030 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2031 | u132_endp_queue_work(u132, endp, 0); |
| 2032 | return 0; |
| 2033 | } |
| 2034 | |
| 2035 | static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, |
| 2036 | struct urb *urb, |
| 2037 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| 2038 | u8 usb_endp, u8 address) |
| 2039 | { |
| 2040 | urb->hcpriv = u132; |
| 2041 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2042 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2043 | } else { |
| 2044 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
| 2045 | GFP_ATOMIC); |
| 2046 | if (urbq == NULL) { |
| 2047 | endp->queue_size -= 1; |
| 2048 | return -ENOMEM; |
| 2049 | } else { |
| 2050 | list_add_tail(&urbq->urb_more, &endp->urb_more); |
| 2051 | urbq->urb = urb; |
| 2052 | } |
| 2053 | } |
| 2054 | return 0; |
| 2055 | } |
| 2056 | |
| 2057 | static int create_endpoint_and_queue_control(struct u132 *u132, |
| 2058 | struct urb *urb, |
| 2059 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
| 2060 | gfp_t mem_flags) |
| 2061 | { |
| 2062 | struct u132_ring *ring; |
| 2063 | unsigned long irqs; |
| 2064 | int rc; |
| 2065 | u8 endp_number; |
| 2066 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| 2067 | |
| 2068 | if (!endp) |
| 2069 | return -ENOMEM; |
| 2070 | |
| 2071 | spin_lock_init(&endp->queue_lock.slock); |
| 2072 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| 2073 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| 2074 | if (rc) { |
| 2075 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2076 | kfree(endp); |
| 2077 | return rc; |
| 2078 | } |
| 2079 | |
| 2080 | endp_number = ++u132->num_endpoints; |
| 2081 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| 2082 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| 2083 | INIT_LIST_HEAD(&endp->urb_more); |
| 2084 | ring = endp->ring = &u132->ring[0]; |
| 2085 | if (ring->curr_endp) { |
| 2086 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| 2087 | } else { |
| 2088 | INIT_LIST_HEAD(&endp->endp_ring); |
| 2089 | ring->curr_endp = endp; |
| 2090 | } |
| 2091 | ring->length += 1; |
| 2092 | endp->dequeueing = 0; |
| 2093 | endp->edset_flush = 0; |
| 2094 | endp->active = 0; |
| 2095 | endp->delayed = 0; |
| 2096 | endp->endp_number = endp_number; |
| 2097 | endp->u132 = u132; |
| 2098 | endp->hep = urb->ep; |
| 2099 | u132_endp_init_kref(u132, endp); |
| 2100 | u132_endp_get_kref(u132, endp); |
| 2101 | if (usb_addr == 0) { |
| 2102 | u8 address = u132->addr[usb_addr].address; |
| 2103 | struct u132_udev *udev = &u132->udev[address]; |
| 2104 | endp->udev_number = address; |
| 2105 | endp->usb_addr = usb_addr; |
| 2106 | endp->usb_endp = usb_endp; |
| 2107 | endp->input = 1; |
| 2108 | endp->output = 1; |
| 2109 | endp->pipetype = usb_pipetype(urb->pipe); |
| 2110 | u132_udev_init_kref(u132, udev); |
| 2111 | u132_udev_get_kref(u132, udev); |
| 2112 | udev->endp_number_in[usb_endp] = endp_number; |
| 2113 | udev->endp_number_out[usb_endp] = endp_number; |
| 2114 | urb->hcpriv = u132; |
| 2115 | endp->queue_size = 1; |
| 2116 | endp->queue_last = 0; |
| 2117 | endp->queue_next = 0; |
| 2118 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2119 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2120 | u132_endp_queue_work(u132, endp, 0); |
| 2121 | return 0; |
| 2122 | } else { /*(usb_addr > 0) */ |
| 2123 | u8 address = u132->addr[usb_addr].address; |
| 2124 | struct u132_udev *udev = &u132->udev[address]; |
| 2125 | endp->udev_number = address; |
| 2126 | endp->usb_addr = usb_addr; |
| 2127 | endp->usb_endp = usb_endp; |
| 2128 | endp->input = 1; |
| 2129 | endp->output = 1; |
| 2130 | endp->pipetype = usb_pipetype(urb->pipe); |
| 2131 | u132_udev_get_kref(u132, udev); |
| 2132 | udev->enumeration = 2; |
| 2133 | udev->endp_number_in[usb_endp] = endp_number; |
| 2134 | udev->endp_number_out[usb_endp] = endp_number; |
| 2135 | urb->hcpriv = u132; |
| 2136 | endp->queue_size = 1; |
| 2137 | endp->queue_last = 0; |
| 2138 | endp->queue_next = 0; |
| 2139 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2140 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2141 | u132_endp_queue_work(u132, endp, 0); |
| 2142 | return 0; |
| 2143 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2144 | } |
| 2145 | |
| 2146 | static int queue_control_on_old_endpoint(struct u132 *u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2147 | struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2148 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| 2149 | u8 usb_endp) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2150 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2151 | if (usb_addr == 0) { |
| 2152 | if (usb_pipein(urb->pipe)) { |
| 2153 | urb->hcpriv = u132; |
| 2154 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2155 | endp->urb_list[ENDP_QUEUE_MASK & |
| 2156 | endp->queue_last++] = urb; |
| 2157 | } else { |
| 2158 | struct u132_urbq *urbq = |
| 2159 | kmalloc(sizeof(struct u132_urbq), |
| 2160 | GFP_ATOMIC); |
| 2161 | if (urbq == NULL) { |
| 2162 | endp->queue_size -= 1; |
| 2163 | return -ENOMEM; |
| 2164 | } else { |
| 2165 | list_add_tail(&urbq->urb_more, |
| 2166 | &endp->urb_more); |
| 2167 | urbq->urb = urb; |
| 2168 | } |
| 2169 | } |
| 2170 | return 0; |
| 2171 | } else { /* usb_pipeout(urb->pipe) */ |
| 2172 | struct u132_addr *addr = &u132->addr[usb_dev->devnum]; |
| 2173 | int I = MAX_U132_UDEVS; |
| 2174 | int i = 0; |
| 2175 | while (--I > 0) { |
| 2176 | struct u132_udev *udev = &u132->udev[++i]; |
| 2177 | if (udev->usb_device) { |
| 2178 | continue; |
| 2179 | } else { |
| 2180 | udev->enumeration = 1; |
| 2181 | u132->addr[0].address = i; |
| 2182 | endp->udev_number = i; |
| 2183 | udev->udev_number = i; |
| 2184 | udev->usb_addr = usb_dev->devnum; |
| 2185 | u132_udev_init_kref(u132, udev); |
| 2186 | udev->endp_number_in[usb_endp] = |
| 2187 | endp->endp_number; |
| 2188 | u132_udev_get_kref(u132, udev); |
| 2189 | udev->endp_number_out[usb_endp] = |
| 2190 | endp->endp_number; |
| 2191 | udev->usb_device = usb_dev; |
| 2192 | ((u8 *) (urb->setup_packet))[2] = |
| 2193 | addr->address = i; |
| 2194 | u132_udev_get_kref(u132, udev); |
| 2195 | break; |
| 2196 | } |
| 2197 | } |
| 2198 | if (I == 0) { |
| 2199 | dev_err(&u132->platform_dev->dev, "run out of d" |
| 2200 | "evice space\n"); |
| 2201 | return -EINVAL; |
| 2202 | } |
| 2203 | urb->hcpriv = u132; |
| 2204 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2205 | endp->urb_list[ENDP_QUEUE_MASK & |
| 2206 | endp->queue_last++] = urb; |
| 2207 | } else { |
| 2208 | struct u132_urbq *urbq = |
| 2209 | kmalloc(sizeof(struct u132_urbq), |
| 2210 | GFP_ATOMIC); |
| 2211 | if (urbq == NULL) { |
| 2212 | endp->queue_size -= 1; |
| 2213 | return -ENOMEM; |
| 2214 | } else { |
| 2215 | list_add_tail(&urbq->urb_more, |
| 2216 | &endp->urb_more); |
| 2217 | urbq->urb = urb; |
| 2218 | } |
| 2219 | } |
| 2220 | return 0; |
| 2221 | } |
| 2222 | } else { /*(usb_addr > 0) */ |
| 2223 | u8 address = u132->addr[usb_addr].address; |
| 2224 | struct u132_udev *udev = &u132->udev[address]; |
| 2225 | urb->hcpriv = u132; |
| 2226 | if (udev->enumeration != 2) |
| 2227 | udev->enumeration = 2; |
| 2228 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2229 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| 2230 | urb; |
| 2231 | } else { |
| 2232 | struct u132_urbq *urbq = |
| 2233 | kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); |
| 2234 | if (urbq == NULL) { |
| 2235 | endp->queue_size -= 1; |
| 2236 | return -ENOMEM; |
| 2237 | } else { |
| 2238 | list_add_tail(&urbq->urb_more, &endp->urb_more); |
| 2239 | urbq->urb = urb; |
| 2240 | } |
| 2241 | } |
| 2242 | return 0; |
| 2243 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2244 | } |
| 2245 | |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2246 | static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
| 2247 | gfp_t mem_flags) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2248 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2249 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2250 | if (irqs_disabled()) { |
| 2251 | if (__GFP_WAIT & mem_flags) { |
| 2252 | printk(KERN_ERR "invalid context for function that migh" |
| 2253 | "t sleep\n"); |
| 2254 | return -EINVAL; |
| 2255 | } |
| 2256 | } |
| 2257 | if (u132->going > 1) { |
| 2258 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2259 | , u132->going); |
| 2260 | return -ENODEV; |
| 2261 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 2262 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 2263 | "urb=%p\n", urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2264 | return -ESHUTDOWN; |
| 2265 | } else { |
| 2266 | u8 usb_addr = usb_pipedevice(urb->pipe); |
| 2267 | u8 usb_endp = usb_pipeendpoint(urb->pipe); |
| 2268 | struct usb_device *usb_dev = urb->dev; |
| 2269 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { |
| 2270 | u8 address = u132->addr[usb_addr].address; |
| 2271 | struct u132_udev *udev = &u132->udev[address]; |
| 2272 | struct u132_endp *endp = urb->ep->hcpriv; |
| 2273 | urb->actual_length = 0; |
| 2274 | if (endp) { |
| 2275 | unsigned long irqs; |
| 2276 | int retval; |
| 2277 | spin_lock_irqsave(&endp->queue_lock.slock, |
| 2278 | irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2279 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| 2280 | if (retval == 0) { |
| 2281 | retval = queue_int_on_old_endpoint( |
| 2282 | u132, udev, urb, |
| 2283 | usb_dev, endp, |
| 2284 | usb_addr, usb_endp, |
| 2285 | address); |
| 2286 | if (retval) |
| 2287 | usb_hcd_unlink_urb_from_ep( |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2288 | hcd, urb); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2289 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2290 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2291 | irqs); |
| 2292 | if (retval) { |
| 2293 | return retval; |
| 2294 | } else { |
| 2295 | u132_endp_queue_work(u132, endp, |
| 2296 | msecs_to_jiffies(urb->interval)) |
| 2297 | ; |
| 2298 | return 0; |
| 2299 | } |
| 2300 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| 2301 | return -EINVAL; |
| 2302 | } else { /*(endp == NULL) */ |
| 2303 | return create_endpoint_and_queue_int(u132, udev, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2304 | urb, usb_dev, usb_addr, |
| 2305 | usb_endp, address, mem_flags); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2306 | } |
| 2307 | } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { |
| 2308 | dev_err(&u132->platform_dev->dev, "the hardware does no" |
| 2309 | "t support PIPE_ISOCHRONOUS\n"); |
| 2310 | return -EINVAL; |
| 2311 | } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { |
| 2312 | u8 address = u132->addr[usb_addr].address; |
| 2313 | struct u132_udev *udev = &u132->udev[address]; |
| 2314 | struct u132_endp *endp = urb->ep->hcpriv; |
| 2315 | urb->actual_length = 0; |
| 2316 | if (endp) { |
| 2317 | unsigned long irqs; |
| 2318 | int retval; |
| 2319 | spin_lock_irqsave(&endp->queue_lock.slock, |
| 2320 | irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2321 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| 2322 | if (retval == 0) { |
| 2323 | retval = queue_bulk_on_old_endpoint( |
| 2324 | u132, udev, urb, |
| 2325 | usb_dev, endp, |
| 2326 | usb_addr, usb_endp, |
| 2327 | address); |
| 2328 | if (retval) |
| 2329 | usb_hcd_unlink_urb_from_ep( |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2330 | hcd, urb); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2331 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2332 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2333 | irqs); |
| 2334 | if (retval) { |
| 2335 | return retval; |
| 2336 | } else { |
| 2337 | u132_endp_queue_work(u132, endp, 0); |
| 2338 | return 0; |
| 2339 | } |
| 2340 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| 2341 | return -EINVAL; |
| 2342 | } else |
| 2343 | return create_endpoint_and_queue_bulk(u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2344 | udev, urb, usb_dev, usb_addr, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2345 | usb_endp, address, mem_flags); |
| 2346 | } else { |
| 2347 | struct u132_endp *endp = urb->ep->hcpriv; |
| 2348 | u16 urb_size = 8; |
| 2349 | u8 *b = urb->setup_packet; |
| 2350 | int i = 0; |
| 2351 | char data[30 * 3 + 4]; |
| 2352 | char *d = data; |
| 2353 | int m = (sizeof(data) - 1) / 3; |
| 2354 | int l = 0; |
| 2355 | data[0] = 0; |
| 2356 | while (urb_size-- > 0) { |
| 2357 | if (i > m) { |
| 2358 | } else if (i++ < m) { |
| 2359 | int w = sprintf(d, " %02X", *b++); |
| 2360 | d += w; |
| 2361 | l += w; |
| 2362 | } else |
| 2363 | d += sprintf(d, " .."); |
| 2364 | } |
| 2365 | if (endp) { |
| 2366 | unsigned long irqs; |
| 2367 | int retval; |
| 2368 | spin_lock_irqsave(&endp->queue_lock.slock, |
| 2369 | irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2370 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| 2371 | if (retval == 0) { |
| 2372 | retval = queue_control_on_old_endpoint( |
| 2373 | u132, urb, usb_dev, |
| 2374 | endp, usb_addr, |
| 2375 | usb_endp); |
| 2376 | if (retval) |
| 2377 | usb_hcd_unlink_urb_from_ep( |
| 2378 | hcd, urb); |
| 2379 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2380 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2381 | irqs); |
| 2382 | if (retval) { |
| 2383 | return retval; |
| 2384 | } else { |
| 2385 | u132_endp_queue_work(u132, endp, 0); |
| 2386 | return 0; |
| 2387 | } |
| 2388 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| 2389 | return -EINVAL; |
| 2390 | } else |
| 2391 | return create_endpoint_and_queue_control(u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2392 | urb, usb_dev, usb_addr, usb_endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2393 | mem_flags); |
| 2394 | } |
| 2395 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2396 | } |
| 2397 | |
| 2398 | static int dequeue_from_overflow_chain(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2399 | struct u132_endp *endp, struct urb *urb) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2400 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2401 | struct list_head *scan; |
| 2402 | struct list_head *head = &endp->urb_more; |
| 2403 | list_for_each(scan, head) { |
| 2404 | struct u132_urbq *urbq = list_entry(scan, struct u132_urbq, |
| 2405 | urb_more); |
| 2406 | if (urbq->urb == urb) { |
| 2407 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 2408 | list_del(scan); |
| 2409 | endp->queue_size -= 1; |
| 2410 | urb->error_count = 0; |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 2411 | usb_hcd_giveback_urb(hcd, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2412 | return 0; |
| 2413 | } else |
| 2414 | continue; |
| 2415 | } |
| 2416 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" |
| 2417 | "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" |
| 2418 | "\n", urb, endp->endp_number, endp, endp->ring->number, |
| 2419 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
| 2420 | endp->usb_endp, endp->usb_addr, endp->queue_size, |
| 2421 | endp->queue_next, endp->queue_last); |
| 2422 | return -EINVAL; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2423 | } |
| 2424 | |
| 2425 | static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2426 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2427 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2428 | unsigned long irqs; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2429 | int rc; |
| 2430 | |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2431 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2432 | rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
| 2433 | if (rc) { |
| 2434 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2435 | return rc; |
| 2436 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2437 | if (endp->queue_size == 0) { |
| 2438 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" |
| 2439 | "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, |
| 2440 | endp->endp_number, endp, endp->ring->number, |
| 2441 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
| 2442 | endp->usb_endp, endp->usb_addr); |
| 2443 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2444 | return -EINVAL; |
| 2445 | } |
| 2446 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { |
| 2447 | if (endp->active) { |
| 2448 | endp->dequeueing = 1; |
| 2449 | endp->edset_flush = 1; |
| 2450 | u132_endp_queue_work(u132, endp, 0); |
| 2451 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2452 | return 0; |
| 2453 | } else { |
| 2454 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 2455 | u132_hcd_abandon_urb(u132, endp, urb, status); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2456 | return 0; |
| 2457 | } |
| 2458 | } else { |
| 2459 | u16 queue_list = 0; |
| 2460 | u16 queue_size = endp->queue_size; |
| 2461 | u16 queue_scan = endp->queue_next; |
| 2462 | struct urb **urb_slot = NULL; |
| 2463 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
| 2464 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & |
| 2465 | ++queue_scan]) { |
| 2466 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
| 2467 | queue_scan]; |
| 2468 | break; |
| 2469 | } else |
| 2470 | continue; |
| 2471 | } |
| 2472 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
| 2473 | *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & |
| 2474 | ++queue_scan]; |
| 2475 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
| 2476 | queue_scan]; |
| 2477 | } |
| 2478 | if (urb_slot) { |
| 2479 | struct usb_hcd *hcd = u132_to_hcd(u132); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2480 | |
| 2481 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2482 | endp->queue_size -= 1; |
| 2483 | if (list_empty(&endp->urb_more)) { |
| 2484 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2485 | irqs); |
| 2486 | } else { |
| 2487 | struct list_head *next = endp->urb_more.next; |
| 2488 | struct u132_urbq *urbq = list_entry(next, |
| 2489 | struct u132_urbq, urb_more); |
| 2490 | list_del(next); |
| 2491 | *urb_slot = urbq->urb; |
| 2492 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2493 | irqs); |
| 2494 | kfree(urbq); |
| 2495 | } urb->error_count = 0; |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 2496 | usb_hcd_giveback_urb(hcd, urb, status); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2497 | return 0; |
| 2498 | } else if (list_empty(&endp->urb_more)) { |
| 2499 | dev_err(&u132->platform_dev->dev, "urb=%p not found in " |
| 2500 | "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" |
| 2501 | "=%d size=%d next=%04X last=%04X\n", urb, |
| 2502 | endp->endp_number, endp, endp->ring->number, |
| 2503 | endp->input ? 'I' : ' ', |
| 2504 | endp->output ? 'O' : ' ', endp->usb_endp, |
| 2505 | endp->usb_addr, endp->queue_size, |
| 2506 | endp->queue_next, endp->queue_last); |
| 2507 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2508 | return -EINVAL; |
| 2509 | } else { |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2510 | int retval; |
| 2511 | |
| 2512 | usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); |
| 2513 | retval = dequeue_from_overflow_chain(u132, endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2514 | urb); |
| 2515 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2516 | return retval; |
| 2517 | } |
| 2518 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2519 | } |
| 2520 | |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2521 | static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2522 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2523 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2524 | if (u132->going > 2) { |
| 2525 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2526 | , u132->going); |
| 2527 | return -ENODEV; |
| 2528 | } else { |
| 2529 | u8 usb_addr = usb_pipedevice(urb->pipe); |
| 2530 | u8 usb_endp = usb_pipeendpoint(urb->pipe); |
| 2531 | u8 address = u132->addr[usb_addr].address; |
| 2532 | struct u132_udev *udev = &u132->udev[address]; |
| 2533 | if (usb_pipein(urb->pipe)) { |
| 2534 | u8 endp_number = udev->endp_number_in[usb_endp]; |
| 2535 | struct u132_endp *endp = u132->endp[endp_number - 1]; |
| 2536 | return u132_endp_urb_dequeue(u132, endp, urb, status); |
| 2537 | } else { |
| 2538 | u8 endp_number = udev->endp_number_out[usb_endp]; |
| 2539 | struct u132_endp *endp = u132->endp[endp_number - 1]; |
| 2540 | return u132_endp_urb_dequeue(u132, endp, urb, status); |
| 2541 | } |
| 2542 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2543 | } |
| 2544 | |
| 2545 | static void u132_endpoint_disable(struct usb_hcd *hcd, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2546 | struct usb_host_endpoint *hep) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2547 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2548 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2549 | if (u132->going > 2) { |
| 2550 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" |
| 2551 | ") has been removed %d\n", u132, hcd, hep, |
| 2552 | u132->going); |
| 2553 | } else { |
| 2554 | struct u132_endp *endp = hep->hcpriv; |
| 2555 | if (endp) |
| 2556 | u132_endp_put_kref(u132, endp); |
| 2557 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2558 | } |
| 2559 | |
| 2560 | static int u132_get_frame(struct usb_hcd *hcd) |
| 2561 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2562 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2563 | if (u132->going > 1) { |
| 2564 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2565 | , u132->going); |
| 2566 | return -ENODEV; |
| 2567 | } else if (u132->going > 0) { |
| 2568 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2569 | return -ESHUTDOWN; |
| 2570 | } else { |
| 2571 | int frame = 0; |
| 2572 | dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); |
| 2573 | msleep(100); |
| 2574 | return frame; |
| 2575 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2576 | } |
| 2577 | |
| 2578 | static int u132_roothub_descriptor(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2579 | struct usb_hub_descriptor *desc) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2580 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2581 | int retval; |
| 2582 | u16 temp; |
| 2583 | u32 rh_a = -1; |
| 2584 | u32 rh_b = -1; |
| 2585 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
| 2586 | if (retval) |
| 2587 | return retval; |
| 2588 | desc->bDescriptorType = 0x29; |
| 2589 | desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; |
| 2590 | desc->bHubContrCurrent = 0; |
| 2591 | desc->bNbrPorts = u132->num_ports; |
| 2592 | temp = 1 + (u132->num_ports / 8); |
| 2593 | desc->bDescLength = 7 + 2 * temp; |
| 2594 | temp = 0; |
| 2595 | if (rh_a & RH_A_NPS) |
| 2596 | temp |= 0x0002; |
| 2597 | if (rh_a & RH_A_PSM) |
| 2598 | temp |= 0x0001; |
| 2599 | if (rh_a & RH_A_NOCP) |
| 2600 | temp |= 0x0010; |
| 2601 | else if (rh_a & RH_A_OCPM) |
| 2602 | temp |= 0x0008; |
| 2603 | desc->wHubCharacteristics = cpu_to_le16(temp); |
| 2604 | retval = u132_read_pcimem(u132, roothub.b, &rh_b); |
| 2605 | if (retval) |
| 2606 | return retval; |
John Youn | dbe79bb | 2001-09-17 00:00:00 -0700 | [diff] [blame] | 2607 | memset(desc->u.hs.DeviceRemovable, 0xff, |
| 2608 | sizeof(desc->u.hs.DeviceRemovable)); |
| 2609 | desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2610 | if (u132->num_ports > 7) { |
John Youn | dbe79bb | 2001-09-17 00:00:00 -0700 | [diff] [blame] | 2611 | desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8; |
| 2612 | desc->u.hs.DeviceRemovable[2] = 0xff; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2613 | } else |
John Youn | dbe79bb | 2001-09-17 00:00:00 -0700 | [diff] [blame] | 2614 | desc->u.hs.DeviceRemovable[1] = 0xff; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2615 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2616 | } |
| 2617 | |
| 2618 | static int u132_roothub_status(struct u132 *u132, __le32 *desc) |
| 2619 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2620 | u32 rh_status = -1; |
| 2621 | int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); |
| 2622 | *desc = cpu_to_le32(rh_status); |
| 2623 | return ret_status; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2624 | } |
| 2625 | |
| 2626 | static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) |
| 2627 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2628 | if (wIndex == 0 || wIndex > u132->num_ports) { |
| 2629 | return -EINVAL; |
| 2630 | } else { |
| 2631 | int port = wIndex - 1; |
| 2632 | u32 rh_portstatus = -1; |
| 2633 | int ret_portstatus = u132_read_pcimem(u132, |
| 2634 | roothub.portstatus[port], &rh_portstatus); |
| 2635 | *desc = cpu_to_le32(rh_portstatus); |
| 2636 | if (*(u16 *) (desc + 2)) { |
| 2637 | dev_info(&u132->platform_dev->dev, "Port %d Status Chan" |
| 2638 | "ge = %08X\n", port, *desc); |
| 2639 | } |
| 2640 | return ret_portstatus; |
| 2641 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2642 | } |
| 2643 | |
| 2644 | |
| 2645 | /* this timer value might be vendor-specific ... */ |
| 2646 | #define PORT_RESET_HW_MSEC 10 |
| 2647 | #define PORT_RESET_MSEC 10 |
| 2648 | /* wrap-aware logic morphed from <linux/jiffies.h> */ |
| 2649 | #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) |
| 2650 | static int u132_roothub_portreset(struct u132 *u132, int port_index) |
| 2651 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2652 | int retval; |
| 2653 | u32 fmnumber; |
| 2654 | u16 now; |
| 2655 | u16 reset_done; |
| 2656 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
| 2657 | if (retval) |
| 2658 | return retval; |
| 2659 | now = fmnumber; |
| 2660 | reset_done = now + PORT_RESET_MSEC; |
| 2661 | do { |
| 2662 | u32 portstat; |
| 2663 | do { |
| 2664 | retval = u132_read_pcimem(u132, |
| 2665 | roothub.portstatus[port_index], &portstat); |
| 2666 | if (retval) |
| 2667 | return retval; |
| 2668 | if (RH_PS_PRS & portstat) |
| 2669 | continue; |
| 2670 | else |
| 2671 | break; |
| 2672 | } while (tick_before(now, reset_done)); |
| 2673 | if (RH_PS_PRS & portstat) |
| 2674 | return -ENODEV; |
| 2675 | if (RH_PS_CCS & portstat) { |
| 2676 | if (RH_PS_PRSC & portstat) { |
| 2677 | retval = u132_write_pcimem(u132, |
| 2678 | roothub.portstatus[port_index], |
| 2679 | RH_PS_PRSC); |
| 2680 | if (retval) |
| 2681 | return retval; |
| 2682 | } |
| 2683 | } else |
| 2684 | break; /* start the next reset, |
| 2685 | sleep till it's probably done */ |
| 2686 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], |
| 2687 | RH_PS_PRS); |
| 2688 | if (retval) |
| 2689 | return retval; |
| 2690 | msleep(PORT_RESET_HW_MSEC); |
| 2691 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
| 2692 | if (retval) |
| 2693 | return retval; |
| 2694 | now = fmnumber; |
| 2695 | } while (tick_before(now, reset_done)); |
| 2696 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2697 | } |
| 2698 | |
| 2699 | static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2700 | u16 wIndex) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2701 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2702 | if (wIndex == 0 || wIndex > u132->num_ports) { |
| 2703 | return -EINVAL; |
| 2704 | } else { |
| 2705 | int retval; |
| 2706 | int port_index = wIndex - 1; |
| 2707 | struct u132_port *port = &u132->port[port_index]; |
| 2708 | port->Status &= ~(1 << wValue); |
| 2709 | switch (wValue) { |
| 2710 | case USB_PORT_FEAT_SUSPEND: |
| 2711 | retval = u132_write_pcimem(u132, |
| 2712 | roothub.portstatus[port_index], RH_PS_PSS); |
| 2713 | if (retval) |
| 2714 | return retval; |
| 2715 | return 0; |
| 2716 | case USB_PORT_FEAT_POWER: |
| 2717 | retval = u132_write_pcimem(u132, |
| 2718 | roothub.portstatus[port_index], RH_PS_PPS); |
| 2719 | if (retval) |
| 2720 | return retval; |
| 2721 | return 0; |
| 2722 | case USB_PORT_FEAT_RESET: |
| 2723 | retval = u132_roothub_portreset(u132, port_index); |
| 2724 | if (retval) |
| 2725 | return retval; |
| 2726 | return 0; |
| 2727 | default: |
| 2728 | return -EPIPE; |
| 2729 | } |
| 2730 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2731 | } |
| 2732 | |
| 2733 | static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2734 | u16 wIndex) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2735 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2736 | if (wIndex == 0 || wIndex > u132->num_ports) { |
| 2737 | return -EINVAL; |
| 2738 | } else { |
| 2739 | int port_index = wIndex - 1; |
| 2740 | u32 temp; |
| 2741 | int retval; |
| 2742 | struct u132_port *port = &u132->port[port_index]; |
| 2743 | port->Status &= ~(1 << wValue); |
| 2744 | switch (wValue) { |
| 2745 | case USB_PORT_FEAT_ENABLE: |
| 2746 | temp = RH_PS_CCS; |
| 2747 | break; |
| 2748 | case USB_PORT_FEAT_C_ENABLE: |
| 2749 | temp = RH_PS_PESC; |
| 2750 | break; |
| 2751 | case USB_PORT_FEAT_SUSPEND: |
| 2752 | temp = RH_PS_POCI; |
| 2753 | if ((u132->hc_control & OHCI_CTRL_HCFS) |
| 2754 | != OHCI_USB_OPER) { |
| 2755 | dev_err(&u132->platform_dev->dev, "TODO resume_" |
| 2756 | "root_hub\n"); |
| 2757 | } |
| 2758 | break; |
| 2759 | case USB_PORT_FEAT_C_SUSPEND: |
| 2760 | temp = RH_PS_PSSC; |
| 2761 | break; |
| 2762 | case USB_PORT_FEAT_POWER: |
| 2763 | temp = RH_PS_LSDA; |
| 2764 | break; |
| 2765 | case USB_PORT_FEAT_C_CONNECTION: |
| 2766 | temp = RH_PS_CSC; |
| 2767 | break; |
| 2768 | case USB_PORT_FEAT_C_OVER_CURRENT: |
| 2769 | temp = RH_PS_OCIC; |
| 2770 | break; |
| 2771 | case USB_PORT_FEAT_C_RESET: |
| 2772 | temp = RH_PS_PRSC; |
| 2773 | break; |
| 2774 | default: |
| 2775 | return -EPIPE; |
| 2776 | } |
| 2777 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], |
| 2778 | temp); |
| 2779 | if (retval) |
| 2780 | return retval; |
| 2781 | return 0; |
| 2782 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2783 | } |
| 2784 | |
| 2785 | |
| 2786 | /* the virtual root hub timer IRQ checks for hub status*/ |
| 2787 | static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) |
| 2788 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2789 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2790 | if (u132->going > 1) { |
| 2791 | dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" |
| 2792 | "ed %d\n", hcd, u132->going); |
| 2793 | return -ENODEV; |
| 2794 | } else if (u132->going > 0) { |
| 2795 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
| 2796 | "ed\n", hcd); |
| 2797 | return -ESHUTDOWN; |
| 2798 | } else { |
| 2799 | int i, changed = 0, length = 1; |
| 2800 | if (u132->flags & OHCI_QUIRK_AMD756) { |
| 2801 | if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { |
| 2802 | dev_err(&u132->platform_dev->dev, "bogus NDP, r" |
| 2803 | "ereads as NDP=%d\n", |
| 2804 | u132->hc_roothub_a & RH_A_NDP); |
| 2805 | goto done; |
| 2806 | } |
| 2807 | } |
| 2808 | if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) |
| 2809 | buf[0] = changed = 1; |
| 2810 | else |
| 2811 | buf[0] = 0; |
| 2812 | if (u132->num_ports > 7) { |
| 2813 | buf[1] = 0; |
| 2814 | length++; |
| 2815 | } |
| 2816 | for (i = 0; i < u132->num_ports; i++) { |
| 2817 | if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | |
| 2818 | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | |
| 2819 | RH_PS_PRSC)) { |
| 2820 | changed = 1; |
| 2821 | if (i < 7) |
| 2822 | buf[0] |= 1 << (i + 1); |
| 2823 | else |
| 2824 | buf[1] |= 1 << (i - 7); |
| 2825 | continue; |
| 2826 | } |
| 2827 | if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) |
| 2828 | continue; |
| 2829 | |
| 2830 | if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) |
| 2831 | continue; |
| 2832 | } |
| 2833 | done: |
| 2834 | return changed ? length : 0; |
| 2835 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2836 | } |
| 2837 | |
| 2838 | static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2839 | u16 wIndex, char *buf, u16 wLength) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2840 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2841 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2842 | if (u132->going > 1) { |
| 2843 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2844 | , u132->going); |
| 2845 | return -ENODEV; |
| 2846 | } else if (u132->going > 0) { |
| 2847 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2848 | return -ESHUTDOWN; |
| 2849 | } else { |
| 2850 | int retval = 0; |
| 2851 | mutex_lock(&u132->sw_lock); |
| 2852 | switch (typeReq) { |
| 2853 | case ClearHubFeature: |
| 2854 | switch (wValue) { |
| 2855 | case C_HUB_OVER_CURRENT: |
| 2856 | case C_HUB_LOCAL_POWER: |
| 2857 | break; |
| 2858 | default: |
| 2859 | goto stall; |
| 2860 | } |
| 2861 | break; |
| 2862 | case SetHubFeature: |
| 2863 | switch (wValue) { |
| 2864 | case C_HUB_OVER_CURRENT: |
| 2865 | case C_HUB_LOCAL_POWER: |
| 2866 | break; |
| 2867 | default: |
| 2868 | goto stall; |
| 2869 | } |
| 2870 | break; |
| 2871 | case ClearPortFeature:{ |
| 2872 | retval = u132_roothub_clearportfeature(u132, |
| 2873 | wValue, wIndex); |
| 2874 | if (retval) |
| 2875 | goto error; |
| 2876 | break; |
| 2877 | } |
| 2878 | case GetHubDescriptor:{ |
| 2879 | retval = u132_roothub_descriptor(u132, |
| 2880 | (struct usb_hub_descriptor *)buf); |
| 2881 | if (retval) |
| 2882 | goto error; |
| 2883 | break; |
| 2884 | } |
| 2885 | case GetHubStatus:{ |
| 2886 | retval = u132_roothub_status(u132, |
| 2887 | (__le32 *) buf); |
| 2888 | if (retval) |
| 2889 | goto error; |
| 2890 | break; |
| 2891 | } |
| 2892 | case GetPortStatus:{ |
| 2893 | retval = u132_roothub_portstatus(u132, |
| 2894 | (__le32 *) buf, wIndex); |
| 2895 | if (retval) |
| 2896 | goto error; |
| 2897 | break; |
| 2898 | } |
| 2899 | case SetPortFeature:{ |
| 2900 | retval = u132_roothub_setportfeature(u132, |
| 2901 | wValue, wIndex); |
| 2902 | if (retval) |
| 2903 | goto error; |
| 2904 | break; |
| 2905 | } |
| 2906 | default: |
| 2907 | goto stall; |
| 2908 | error: |
| 2909 | u132_disable(u132); |
| 2910 | u132->going = 1; |
| 2911 | break; |
| 2912 | stall: |
| 2913 | retval = -EPIPE; |
| 2914 | break; |
| 2915 | } |
| 2916 | mutex_unlock(&u132->sw_lock); |
| 2917 | return retval; |
| 2918 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2919 | } |
| 2920 | |
| 2921 | static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) |
| 2922 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2923 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2924 | if (u132->going > 1) { |
| 2925 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2926 | , u132->going); |
| 2927 | return -ENODEV; |
| 2928 | } else if (u132->going > 0) { |
| 2929 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2930 | return -ESHUTDOWN; |
| 2931 | } else |
| 2932 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2933 | } |
| 2934 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2935 | |
| 2936 | #ifdef CONFIG_PM |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2937 | static int u132_bus_suspend(struct usb_hcd *hcd) |
| 2938 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2939 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2940 | if (u132->going > 1) { |
| 2941 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2942 | , u132->going); |
| 2943 | return -ENODEV; |
| 2944 | } else if (u132->going > 0) { |
| 2945 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2946 | return -ESHUTDOWN; |
| 2947 | } else |
| 2948 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2949 | } |
| 2950 | |
| 2951 | static int u132_bus_resume(struct usb_hcd *hcd) |
| 2952 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2953 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2954 | if (u132->going > 1) { |
| 2955 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2956 | , u132->going); |
| 2957 | return -ENODEV; |
| 2958 | } else if (u132->going > 0) { |
| 2959 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2960 | return -ESHUTDOWN; |
| 2961 | } else |
| 2962 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2963 | } |
| 2964 | |
| 2965 | #else |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2966 | #define u132_bus_suspend NULL |
| 2967 | #define u132_bus_resume NULL |
| 2968 | #endif |
| 2969 | static struct hc_driver u132_hc_driver = { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2970 | .description = hcd_name, |
| 2971 | .hcd_priv_size = sizeof(struct u132), |
| 2972 | .irq = NULL, |
| 2973 | .flags = HCD_USB11 | HCD_MEMORY, |
| 2974 | .reset = u132_hcd_reset, |
| 2975 | .start = u132_hcd_start, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2976 | .stop = u132_hcd_stop, |
| 2977 | .urb_enqueue = u132_urb_enqueue, |
| 2978 | .urb_dequeue = u132_urb_dequeue, |
| 2979 | .endpoint_disable = u132_endpoint_disable, |
| 2980 | .get_frame_number = u132_get_frame, |
| 2981 | .hub_status_data = u132_hub_status_data, |
| 2982 | .hub_control = u132_hub_control, |
| 2983 | .bus_suspend = u132_bus_suspend, |
| 2984 | .bus_resume = u132_bus_resume, |
| 2985 | .start_port_reset = u132_start_port_reset, |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2986 | }; |
| 2987 | |
| 2988 | /* |
| 2989 | * This function may be called by the USB core whilst the "usb_all_devices_rwsem" |
| 2990 | * is held for writing, thus this module must not call usb_remove_hcd() |
| 2991 | * synchronously - but instead should immediately stop activity to the |
Matt LaPlante | 0779bf2 | 2006-11-30 05:24:39 +0100 | [diff] [blame] | 2992 | * device and asynchronously call usb_remove_hcd() |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2993 | */ |
| 2994 | static int __devexit u132_remove(struct platform_device *pdev) |
| 2995 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2996 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 2997 | if (hcd) { |
| 2998 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2999 | if (u132->going++ > 1) { |
| 3000 | dev_err(&u132->platform_dev->dev, "already being remove" |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 3001 | "d\n"); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3002 | return -ENODEV; |
| 3003 | } else { |
| 3004 | int rings = MAX_U132_RINGS; |
| 3005 | int endps = MAX_U132_ENDPS; |
| 3006 | dev_err(&u132->platform_dev->dev, "removing device u132" |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 3007 | ".%d\n", u132->sequence_num); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3008 | msleep(100); |
| 3009 | mutex_lock(&u132->sw_lock); |
| 3010 | u132_monitor_cancel_work(u132); |
| 3011 | while (rings-- > 0) { |
| 3012 | struct u132_ring *ring = &u132->ring[rings]; |
| 3013 | u132_ring_cancel_work(u132, ring); |
| 3014 | } while (endps-- > 0) { |
| 3015 | struct u132_endp *endp = u132->endp[endps]; |
| 3016 | if (endp) |
| 3017 | u132_endp_cancel_work(u132, endp); |
| 3018 | } |
| 3019 | u132->going += 1; |
| 3020 | printk(KERN_INFO "removing device u132.%d\n", |
| 3021 | u132->sequence_num); |
| 3022 | mutex_unlock(&u132->sw_lock); |
| 3023 | usb_remove_hcd(hcd); |
| 3024 | u132_u132_put_kref(u132); |
| 3025 | return 0; |
| 3026 | } |
| 3027 | } else |
| 3028 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3029 | } |
| 3030 | |
| 3031 | static void u132_initialise(struct u132 *u132, struct platform_device *pdev) |
| 3032 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3033 | int rings = MAX_U132_RINGS; |
| 3034 | int ports = MAX_U132_PORTS; |
| 3035 | int addrs = MAX_U132_ADDRS; |
| 3036 | int udevs = MAX_U132_UDEVS; |
| 3037 | int endps = MAX_U132_ENDPS; |
| 3038 | u132->board = pdev->dev.platform_data; |
| 3039 | u132->platform_dev = pdev; |
| 3040 | u132->power = 0; |
| 3041 | u132->reset = 0; |
| 3042 | mutex_init(&u132->sw_lock); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 3043 | mutex_init(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3044 | while (rings-- > 0) { |
| 3045 | struct u132_ring *ring = &u132->ring[rings]; |
| 3046 | ring->u132 = u132; |
| 3047 | ring->number = rings + 1; |
| 3048 | ring->length = 0; |
| 3049 | ring->curr_endp = NULL; |
| 3050 | INIT_DELAYED_WORK(&ring->scheduler, |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3051 | u132_hcd_ring_work_scheduler); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3052 | } |
| 3053 | mutex_lock(&u132->sw_lock); |
| 3054 | INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); |
| 3055 | while (ports-- > 0) { |
| 3056 | struct u132_port *port = &u132->port[ports]; |
| 3057 | port->u132 = u132; |
| 3058 | port->reset = 0; |
| 3059 | port->enable = 0; |
| 3060 | port->power = 0; |
| 3061 | port->Status = 0; |
| 3062 | } |
| 3063 | while (addrs-- > 0) { |
| 3064 | struct u132_addr *addr = &u132->addr[addrs]; |
| 3065 | addr->address = 0; |
| 3066 | } |
| 3067 | while (udevs-- > 0) { |
| 3068 | struct u132_udev *udev = &u132->udev[udevs]; |
| 3069 | int i = ARRAY_SIZE(udev->endp_number_in); |
| 3070 | int o = ARRAY_SIZE(udev->endp_number_out); |
| 3071 | udev->usb_device = NULL; |
| 3072 | udev->udev_number = 0; |
| 3073 | udev->usb_addr = 0; |
| 3074 | udev->portnumber = 0; |
| 3075 | while (i-- > 0) |
| 3076 | udev->endp_number_in[i] = 0; |
| 3077 | |
| 3078 | while (o-- > 0) |
| 3079 | udev->endp_number_out[o] = 0; |
| 3080 | |
| 3081 | } |
| 3082 | while (endps-- > 0) |
| 3083 | u132->endp[endps] = NULL; |
| 3084 | |
| 3085 | mutex_unlock(&u132->sw_lock); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3086 | } |
| 3087 | |
| 3088 | static int __devinit u132_probe(struct platform_device *pdev) |
| 3089 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3090 | struct usb_hcd *hcd; |
| 3091 | int retval; |
| 3092 | u32 control; |
| 3093 | u32 rh_a = -1; |
| 3094 | u32 num_ports; |
| 3095 | |
| 3096 | msleep(100); |
| 3097 | if (u132_exiting > 0) |
| 3098 | return -ENODEV; |
| 3099 | |
| 3100 | retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); |
| 3101 | if (retval) |
| 3102 | return retval; |
| 3103 | retval = ftdi_read_pcimem(pdev, control, &control); |
| 3104 | if (retval) |
| 3105 | return retval; |
| 3106 | retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); |
| 3107 | if (retval) |
| 3108 | return retval; |
| 3109 | num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ |
| 3110 | if (pdev->dev.dma_mask) |
| 3111 | return -EINVAL; |
| 3112 | |
Kay Sievers | 7071a3c | 2008-05-02 06:02:41 +0200 | [diff] [blame] | 3113 | hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, dev_name(&pdev->dev)); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3114 | if (!hcd) { |
| 3115 | printk(KERN_ERR "failed to create the usb hcd struct for U132\n" |
| 3116 | ); |
| 3117 | ftdi_elan_gone_away(pdev); |
| 3118 | return -ENOMEM; |
| 3119 | } else { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3120 | struct u132 *u132 = hcd_to_u132(hcd); |
Bill Pemberton | 6641445 | 2010-04-29 10:04:56 -0400 | [diff] [blame] | 3121 | retval = 0; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3122 | hcd->rsrc_start = 0; |
| 3123 | mutex_lock(&u132_module_lock); |
| 3124 | list_add_tail(&u132->u132_list, &u132_static_list); |
| 3125 | u132->sequence_num = ++u132_instances; |
| 3126 | mutex_unlock(&u132_module_lock); |
| 3127 | u132_u132_init_kref(u132); |
| 3128 | u132_initialise(u132, pdev); |
| 3129 | hcd->product_desc = "ELAN U132 Host Controller"; |
| 3130 | retval = usb_add_hcd(hcd, 0, 0); |
| 3131 | if (retval != 0) { |
| 3132 | dev_err(&u132->platform_dev->dev, "init error %d\n", |
| 3133 | retval); |
| 3134 | u132_u132_put_kref(u132); |
| 3135 | return retval; |
| 3136 | } else { |
| 3137 | u132_monitor_queue_work(u132, 100); |
| 3138 | return 0; |
| 3139 | } |
| 3140 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3141 | } |
| 3142 | |
| 3143 | |
| 3144 | #ifdef CONFIG_PM |
| 3145 | /* for this device there's no useful distinction between the controller |
| 3146 | * and its root hub, except that the root hub only gets direct PM calls |
| 3147 | * when CONFIG_USB_SUSPEND is enabled. |
| 3148 | */ |
| 3149 | static int u132_suspend(struct platform_device *pdev, pm_message_t state) |
| 3150 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3151 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 3152 | struct u132 *u132 = hcd_to_u132(hcd); |
| 3153 | if (u132->going > 1) { |
| 3154 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 3155 | , u132->going); |
| 3156 | return -ENODEV; |
| 3157 | } else if (u132->going > 0) { |
| 3158 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 3159 | return -ESHUTDOWN; |
| 3160 | } else { |
Mirco Tischler | 038eb0e | 2008-02-24 05:16:39 +0100 | [diff] [blame] | 3161 | int retval = 0, ports; |
Rafael J. Wysocki | 3a2d5b7 | 2008-02-23 19:13:25 +0100 | [diff] [blame] | 3162 | |
| 3163 | switch (state.event) { |
| 3164 | case PM_EVENT_FREEZE: |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3165 | retval = u132_bus_suspend(hcd); |
Rafael J. Wysocki | 3a2d5b7 | 2008-02-23 19:13:25 +0100 | [diff] [blame] | 3166 | break; |
| 3167 | case PM_EVENT_SUSPEND: |
| 3168 | case PM_EVENT_HIBERNATE: |
Mirco Tischler | 038eb0e | 2008-02-24 05:16:39 +0100 | [diff] [blame] | 3169 | ports = MAX_U132_PORTS; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3170 | while (ports-- > 0) { |
| 3171 | port_power(u132, ports, 0); |
| 3172 | } |
Rafael J. Wysocki | 3a2d5b7 | 2008-02-23 19:13:25 +0100 | [diff] [blame] | 3173 | break; |
| 3174 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3175 | return retval; |
| 3176 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3177 | } |
| 3178 | |
| 3179 | static int u132_resume(struct platform_device *pdev) |
| 3180 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3181 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 3182 | struct u132 *u132 = hcd_to_u132(hcd); |
| 3183 | if (u132->going > 1) { |
| 3184 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 3185 | , u132->going); |
| 3186 | return -ENODEV; |
| 3187 | } else if (u132->going > 0) { |
| 3188 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 3189 | return -ESHUTDOWN; |
| 3190 | } else { |
| 3191 | int retval = 0; |
Alan Stern | 70a1c9e | 2008-03-06 17:00:58 -0500 | [diff] [blame] | 3192 | if (!u132->port[0].power) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3193 | int ports = MAX_U132_PORTS; |
| 3194 | while (ports-- > 0) { |
| 3195 | port_power(u132, ports, 1); |
| 3196 | } |
| 3197 | retval = 0; |
| 3198 | } else { |
| 3199 | retval = u132_bus_resume(hcd); |
| 3200 | } |
| 3201 | return retval; |
| 3202 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3203 | } |
| 3204 | |
| 3205 | #else |
| 3206 | #define u132_suspend NULL |
| 3207 | #define u132_resume NULL |
| 3208 | #endif |
| 3209 | /* |
Matt LaPlante | 0779bf2 | 2006-11-30 05:24:39 +0100 | [diff] [blame] | 3210 | * this driver is loaded explicitly by ftdi_u132 |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3211 | * |
| 3212 | * the platform_driver struct is static because it is per type of module |
| 3213 | */ |
| 3214 | static struct platform_driver u132_platform_driver = { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3215 | .probe = u132_probe, |
| 3216 | .remove = __devexit_p(u132_remove), |
| 3217 | .suspend = u132_suspend, |
| 3218 | .resume = u132_resume, |
| 3219 | .driver = { |
| 3220 | .name = (char *)hcd_name, |
| 3221 | .owner = THIS_MODULE, |
| 3222 | }, |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3223 | }; |
| 3224 | static int __init u132_hcd_init(void) |
| 3225 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3226 | int retval; |
| 3227 | INIT_LIST_HEAD(&u132_static_list); |
| 3228 | u132_instances = 0; |
| 3229 | u132_exiting = 0; |
| 3230 | mutex_init(&u132_module_lock); |
| 3231 | if (usb_disabled()) |
| 3232 | return -ENODEV; |
Michal Marek | 654d121 | 2011-04-05 16:59:11 +0200 | [diff] [blame] | 3233 | printk(KERN_INFO "driver %s\n", hcd_name); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3234 | workqueue = create_singlethread_workqueue("u132"); |
| 3235 | retval = platform_driver_register(&u132_platform_driver); |
| 3236 | return retval; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3237 | } |
| 3238 | |
| 3239 | |
| 3240 | module_init(u132_hcd_init); |
| 3241 | static void __exit u132_hcd_exit(void) |
| 3242 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3243 | struct u132 *u132; |
| 3244 | struct u132 *temp; |
| 3245 | mutex_lock(&u132_module_lock); |
| 3246 | u132_exiting += 1; |
| 3247 | mutex_unlock(&u132_module_lock); |
| 3248 | list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { |
| 3249 | platform_device_unregister(u132->platform_dev); |
| 3250 | } |
| 3251 | platform_driver_unregister(&u132_platform_driver); |
| 3252 | printk(KERN_INFO "u132-hcd driver deregistered\n"); |
| 3253 | wait_event(u132_hcd_wait, u132_instances == 0); |
| 3254 | flush_workqueue(workqueue); |
| 3255 | destroy_workqueue(workqueue); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3256 | } |
| 3257 | |
| 3258 | |
| 3259 | module_exit(u132_hcd_exit); |
| 3260 | MODULE_LICENSE("GPL"); |
Kay Sievers | f4fce61 | 2008-04-10 21:29:22 -0700 | [diff] [blame] | 3261 | MODULE_ALIAS("platform:u132_hcd"); |