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> |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 58 | #include <asm/byteorder.h> |
David Brownell | 47f8468 | 2007-04-29 10:21:14 -0700 | [diff] [blame] | 59 | |
| 60 | /* FIXME ohci.h is ONLY for internal use by the OHCI driver. |
| 61 | * If you're going to try stuff like this, you need to split |
| 62 | * out shareable stuff (register declarations?) into its own |
| 63 | * file, maybe name <linux/usb/ohci.h> |
| 64 | */ |
| 65 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 66 | #include "ohci.h" |
| 67 | #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR |
| 68 | #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] | 69 | OHCI_INTR_WDH) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 70 | MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); |
| 71 | MODULE_DESCRIPTION("U132 USB Host Controller Driver"); |
| 72 | MODULE_LICENSE("GPL"); |
| 73 | #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) |
| 74 | INT_MODULE_PARM(testing, 0); |
| 75 | /* Some boards misreport power switching/overcurrent*/ |
Rusty Russell | 90ab5ee | 2012-01-13 09:32:20 +1030 | [diff] [blame] | 76 | static bool distrust_firmware = 1; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 77 | module_param(distrust_firmware, bool, 0); |
| 78 | MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 79 | "t setup"); |
Adrian Bunk | 27a3de4 | 2006-11-20 03:23:54 +0100 | [diff] [blame] | 80 | static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 81 | /* |
| 82 | * u132_module_lock exists to protect access to global variables |
| 83 | * |
| 84 | */ |
Matthias Kaehlcke | d2066eb | 2007-07-13 21:26:59 +0200 | [diff] [blame] | 85 | static struct mutex u132_module_lock; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 86 | static int u132_exiting; |
| 87 | static int u132_instances; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 88 | static struct list_head u132_static_list; |
| 89 | /* |
| 90 | * end of the global variables protected by u132_module_lock |
| 91 | */ |
| 92 | static struct workqueue_struct *workqueue; |
| 93 | #define MAX_U132_PORTS 7 |
| 94 | #define MAX_U132_ADDRS 128 |
| 95 | #define MAX_U132_UDEVS 4 |
| 96 | #define MAX_U132_ENDPS 100 |
| 97 | #define MAX_U132_RINGS 4 |
| 98 | static const char *cc_to_text[16] = { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 99 | "No Error ", |
| 100 | "CRC Error ", |
| 101 | "Bit Stuff ", |
| 102 | "Data Togg ", |
| 103 | "Stall ", |
| 104 | "DevNotResp ", |
| 105 | "PIDCheck ", |
| 106 | "UnExpPID ", |
| 107 | "DataOver ", |
| 108 | "DataUnder ", |
| 109 | "(for hw) ", |
| 110 | "(for hw) ", |
| 111 | "BufferOver ", |
| 112 | "BuffUnder ", |
| 113 | "(for HCD) ", |
| 114 | "(for HCD) " |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 115 | }; |
| 116 | struct u132_port { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 117 | struct u132 *u132; |
| 118 | int reset; |
| 119 | int enable; |
| 120 | int power; |
| 121 | int Status; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 122 | }; |
| 123 | struct u132_addr { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 124 | u8 address; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 125 | }; |
| 126 | struct u132_udev { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 127 | struct kref kref; |
| 128 | struct usb_device *usb_device; |
| 129 | u8 enumeration; |
| 130 | u8 udev_number; |
| 131 | u8 usb_addr; |
| 132 | u8 portnumber; |
| 133 | u8 endp_number_in[16]; |
| 134 | u8 endp_number_out[16]; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 135 | }; |
| 136 | #define ENDP_QUEUE_SHIFT 3 |
| 137 | #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) |
| 138 | #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) |
| 139 | struct u132_urbq { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 140 | struct list_head urb_more; |
| 141 | struct urb *urb; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 142 | }; |
| 143 | struct u132_spin { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 144 | spinlock_t slock; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 145 | }; |
| 146 | struct u132_endp { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 147 | struct kref kref; |
| 148 | u8 udev_number; |
| 149 | u8 endp_number; |
| 150 | u8 usb_addr; |
| 151 | u8 usb_endp; |
| 152 | struct u132 *u132; |
| 153 | struct list_head endp_ring; |
| 154 | struct u132_ring *ring; |
| 155 | unsigned toggle_bits:2; |
| 156 | unsigned active:1; |
| 157 | unsigned delayed:1; |
| 158 | unsigned input:1; |
| 159 | unsigned output:1; |
| 160 | unsigned pipetype:2; |
| 161 | unsigned dequeueing:1; |
| 162 | unsigned edset_flush:1; |
| 163 | unsigned spare_bits:14; |
| 164 | unsigned long jiffies; |
| 165 | struct usb_host_endpoint *hep; |
| 166 | struct u132_spin queue_lock; |
| 167 | u16 queue_size; |
| 168 | u16 queue_last; |
| 169 | u16 queue_next; |
| 170 | struct urb *urb_list[ENDP_QUEUE_SIZE]; |
| 171 | struct list_head urb_more; |
| 172 | struct delayed_work scheduler; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 173 | }; |
| 174 | struct u132_ring { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 175 | unsigned in_use:1; |
| 176 | unsigned length:7; |
| 177 | u8 number; |
| 178 | struct u132 *u132; |
| 179 | struct u132_endp *curr_endp; |
| 180 | struct delayed_work scheduler; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 181 | }; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 182 | struct u132 { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 183 | struct kref kref; |
| 184 | struct list_head u132_list; |
| 185 | struct mutex sw_lock; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 186 | struct mutex scheduler_lock; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 187 | struct u132_platform_data *board; |
| 188 | struct platform_device *platform_dev; |
| 189 | struct u132_ring ring[MAX_U132_RINGS]; |
| 190 | int sequence_num; |
| 191 | int going; |
| 192 | int power; |
| 193 | int reset; |
| 194 | int num_ports; |
| 195 | u32 hc_control; |
| 196 | u32 hc_fminterval; |
| 197 | u32 hc_roothub_status; |
| 198 | u32 hc_roothub_a; |
| 199 | u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; |
| 200 | int flags; |
| 201 | unsigned long next_statechange; |
| 202 | struct delayed_work monitor; |
| 203 | int num_endpoints; |
| 204 | struct u132_addr addr[MAX_U132_ADDRS]; |
| 205 | struct u132_udev udev[MAX_U132_UDEVS]; |
| 206 | struct u132_port port[MAX_U132_PORTS]; |
| 207 | struct u132_endp *endp[MAX_U132_ENDPS]; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 208 | }; |
Adrian Bunk | 9ce8540 | 2006-11-20 03:24:44 +0100 | [diff] [blame] | 209 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 210 | /* |
Matt LaPlante | 0779bf2 | 2006-11-30 05:24:39 +0100 | [diff] [blame] | 211 | * these cannot be inlines because we need the structure offset!! |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 212 | * Does anyone have a better way????? |
| 213 | */ |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 214 | #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] | 215 | offsetof(struct ohci_regs, member), 0, data); |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 216 | #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] | 217 | offsetof(struct ohci_regs, member), 0, data); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 218 | #define u132_read_pcimem(u132, member, data) \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 219 | usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ |
| 220 | ohci_regs, member), 0, data); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 221 | #define u132_write_pcimem(u132, member, data) \ |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 222 | usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ |
| 223 | ohci_regs, member), 0, data); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 224 | static inline struct u132 *udev_to_u132(struct u132_udev *udev) |
| 225 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 226 | u8 udev_number = udev->udev_number; |
| 227 | return container_of(udev, struct u132, udev[udev_number]); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 228 | } |
| 229 | |
| 230 | static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) |
| 231 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 232 | return (struct u132 *)(hcd->hcd_priv); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) |
| 236 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 237 | return container_of((void *)u132, struct usb_hcd, hcd_priv); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 238 | } |
| 239 | |
| 240 | static inline void u132_disable(struct u132 *u132) |
| 241 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 242 | u132_to_hcd(u132)->state = HC_STATE_HALT; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 243 | } |
| 244 | |
| 245 | |
| 246 | #define kref_to_u132(d) container_of(d, struct u132, kref) |
| 247 | #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) |
| 248 | #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) |
| 249 | #include "../misc/usb_u132.h" |
| 250 | static const char hcd_name[] = "u132_hcd"; |
| 251 | #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] | 252 | USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ |
| 253 | USB_PORT_STAT_C_RESET) << 16) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 254 | static void u132_hcd_delete(struct kref *kref) |
| 255 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 256 | struct u132 *u132 = kref_to_u132(kref); |
| 257 | struct platform_device *pdev = u132->platform_dev; |
| 258 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 259 | u132->going += 1; |
| 260 | mutex_lock(&u132_module_lock); |
| 261 | list_del_init(&u132->u132_list); |
| 262 | u132_instances -= 1; |
| 263 | mutex_unlock(&u132_module_lock); |
| 264 | dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" |
| 265 | "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); |
| 266 | usb_put_hcd(hcd); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 267 | } |
| 268 | |
| 269 | static inline void u132_u132_put_kref(struct u132 *u132) |
| 270 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 271 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | static inline void u132_u132_init_kref(struct u132 *u132) |
| 275 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 276 | kref_init(&u132->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 277 | } |
| 278 | |
| 279 | static void u132_udev_delete(struct kref *kref) |
| 280 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 281 | struct u132_udev *udev = kref_to_u132_udev(kref); |
| 282 | udev->udev_number = 0; |
| 283 | udev->usb_device = NULL; |
| 284 | udev->usb_addr = 0; |
| 285 | udev->enumeration = 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 286 | } |
| 287 | |
| 288 | static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) |
| 289 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 290 | kref_put(&udev->kref, u132_udev_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) |
| 294 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 295 | kref_get(&udev->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | static inline void u132_udev_init_kref(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 299 | struct u132_udev *udev) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 300 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 301 | kref_init(&udev->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) |
| 305 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 306 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | 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] | 310 | unsigned int delta) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 311 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 312 | if (delta > 0) { |
| 313 | if (queue_delayed_work(workqueue, &ring->scheduler, delta)) |
| 314 | return; |
| 315 | } else if (queue_delayed_work(workqueue, &ring->scheduler, 0)) |
| 316 | return; |
| 317 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 318 | } |
| 319 | |
| 320 | 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] | 321 | unsigned int delta) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 322 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 323 | kref_get(&u132->kref); |
| 324 | u132_ring_requeue_work(u132, ring, delta); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) |
| 328 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 329 | if (cancel_delayed_work(&ring->scheduler)) |
| 330 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 331 | } |
| 332 | |
| 333 | static void u132_endp_delete(struct kref *kref) |
| 334 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 335 | struct u132_endp *endp = kref_to_u132_endp(kref); |
| 336 | struct u132 *u132 = endp->u132; |
| 337 | u8 usb_addr = endp->usb_addr; |
| 338 | u8 usb_endp = endp->usb_endp; |
| 339 | u8 address = u132->addr[usb_addr].address; |
| 340 | struct u132_udev *udev = &u132->udev[address]; |
| 341 | u8 endp_number = endp->endp_number; |
| 342 | struct usb_host_endpoint *hep = endp->hep; |
| 343 | struct u132_ring *ring = endp->ring; |
| 344 | struct list_head *head = &endp->endp_ring; |
| 345 | ring->length -= 1; |
| 346 | if (endp == ring->curr_endp) { |
| 347 | if (list_empty(head)) { |
| 348 | ring->curr_endp = NULL; |
| 349 | list_del(head); |
| 350 | } else { |
| 351 | struct u132_endp *next_endp = list_entry(head->next, |
| 352 | struct u132_endp, endp_ring); |
| 353 | ring->curr_endp = next_endp; |
| 354 | list_del(head); |
| 355 | } |
| 356 | } else |
| 357 | list_del(head); |
| 358 | if (endp->input) { |
| 359 | udev->endp_number_in[usb_endp] = 0; |
| 360 | u132_udev_put_kref(u132, udev); |
| 361 | } |
| 362 | if (endp->output) { |
| 363 | udev->endp_number_out[usb_endp] = 0; |
| 364 | u132_udev_put_kref(u132, udev); |
| 365 | } |
| 366 | u132->endp[endp_number - 1] = NULL; |
| 367 | hep->hcpriv = NULL; |
| 368 | kfree(endp); |
| 369 | u132_u132_put_kref(u132); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) |
| 373 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 374 | kref_put(&endp->kref, u132_endp_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 375 | } |
| 376 | |
| 377 | static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) |
| 378 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 379 | kref_get(&endp->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 380 | } |
| 381 | |
| 382 | static inline void u132_endp_init_kref(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 383 | struct u132_endp *endp) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 384 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 385 | kref_init(&endp->kref); |
| 386 | kref_get(&u132->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | 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] | 390 | unsigned int delta) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 391 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 392 | if (queue_delayed_work(workqueue, &endp->scheduler, delta)) |
| 393 | kref_get(&endp->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 394 | } |
| 395 | |
| 396 | static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) |
| 397 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 398 | if (cancel_delayed_work(&endp->scheduler)) |
| 399 | kref_put(&endp->kref, u132_endp_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | static inline void u132_monitor_put_kref(struct u132 *u132) |
| 403 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 404 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 405 | } |
| 406 | |
| 407 | static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) |
| 408 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 409 | if (queue_delayed_work(workqueue, &u132->monitor, delta)) |
| 410 | kref_get(&u132->kref); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) |
| 414 | { |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 415 | if (!queue_delayed_work(workqueue, &u132->monitor, delta)) |
| 416 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | static void u132_monitor_cancel_work(struct u132 *u132) |
| 420 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 421 | if (cancel_delayed_work(&u132->monitor)) |
| 422 | kref_put(&u132->kref, u132_hcd_delete); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 423 | } |
| 424 | |
| 425 | static int read_roothub_info(struct u132 *u132) |
| 426 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 427 | u32 revision; |
| 428 | int retval; |
| 429 | retval = u132_read_pcimem(u132, revision, &revision); |
| 430 | if (retval) { |
| 431 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
| 432 | "ntrol\n", retval); |
| 433 | return retval; |
| 434 | } else if ((revision & 0xFF) == 0x10) { |
| 435 | } else if ((revision & 0xFF) == 0x11) { |
| 436 | } else { |
| 437 | dev_err(&u132->platform_dev->dev, "device revision is not valid" |
| 438 | " %08X\n", revision); |
| 439 | return -ENODEV; |
| 440 | } |
| 441 | retval = u132_read_pcimem(u132, control, &u132->hc_control); |
| 442 | if (retval) { |
| 443 | dev_err(&u132->platform_dev->dev, "error %d accessing device co" |
| 444 | "ntrol\n", retval); |
| 445 | return retval; |
| 446 | } |
| 447 | retval = u132_read_pcimem(u132, roothub.status, |
| 448 | &u132->hc_roothub_status); |
| 449 | if (retval) { |
| 450 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
| 451 | "g roothub.status\n", retval); |
| 452 | return retval; |
| 453 | } |
| 454 | retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); |
| 455 | if (retval) { |
| 456 | dev_err(&u132->platform_dev->dev, "error %d accessing device re" |
| 457 | "g roothub.a\n", retval); |
| 458 | return retval; |
| 459 | } |
| 460 | { |
| 461 | int I = u132->num_ports; |
| 462 | int i = 0; |
| 463 | while (I-- > 0) { |
| 464 | retval = u132_read_pcimem(u132, roothub.portstatus[i], |
| 465 | &u132->hc_roothub_portstatus[i]); |
| 466 | if (retval) { |
| 467 | dev_err(&u132->platform_dev->dev, "error %d acc" |
| 468 | "essing device roothub.portstatus[%d]\n" |
| 469 | , retval, i); |
| 470 | return retval; |
| 471 | } else |
| 472 | i += 1; |
| 473 | } |
| 474 | } |
| 475 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 476 | } |
| 477 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 478 | static void u132_hcd_monitor_work(struct work_struct *work) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 479 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 480 | struct u132 *u132 = container_of(work, struct u132, monitor.work); |
| 481 | if (u132->going > 1) { |
| 482 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 483 | , u132->going); |
| 484 | u132_monitor_put_kref(u132); |
| 485 | return; |
| 486 | } else if (u132->going > 0) { |
| 487 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 488 | u132_monitor_put_kref(u132); |
| 489 | return; |
| 490 | } else { |
| 491 | int retval; |
| 492 | mutex_lock(&u132->sw_lock); |
| 493 | retval = read_roothub_info(u132); |
| 494 | if (retval) { |
| 495 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 496 | u132_disable(u132); |
| 497 | u132->going = 1; |
| 498 | mutex_unlock(&u132->sw_lock); |
| 499 | usb_hc_died(hcd); |
| 500 | ftdi_elan_gone_away(u132->platform_dev); |
| 501 | u132_monitor_put_kref(u132); |
| 502 | return; |
| 503 | } else { |
| 504 | u132_monitor_requeue_work(u132, 500); |
| 505 | mutex_unlock(&u132->sw_lock); |
| 506 | return; |
| 507 | } |
| 508 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 509 | } |
| 510 | |
| 511 | 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] | 512 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 513 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 514 | struct u132_ring *ring; |
| 515 | unsigned long irqs; |
| 516 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 517 | urb->error_count = 0; |
| 518 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 519 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 520 | endp->queue_next += 1; |
| 521 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
| 522 | endp->active = 0; |
| 523 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 524 | } else { |
| 525 | struct list_head *next = endp->urb_more.next; |
| 526 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
| 527 | urb_more); |
| 528 | list_del(next); |
| 529 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| 530 | urbq->urb; |
| 531 | endp->active = 0; |
| 532 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 533 | kfree(urbq); |
| 534 | } |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 535 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 536 | ring = endp->ring; |
| 537 | ring->in_use = 0; |
| 538 | u132_ring_cancel_work(u132, ring); |
| 539 | u132_ring_queue_work(u132, ring, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 540 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 541 | u132_endp_put_kref(u132, endp); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 542 | usb_hcd_giveback_urb(hcd, urb, status); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 543 | } |
| 544 | |
| 545 | 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] | 546 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 547 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 548 | u132_endp_put_kref(u132, endp); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 549 | } |
| 550 | |
| 551 | 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] | 552 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 553 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 554 | unsigned long irqs; |
| 555 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 556 | urb->error_count = 0; |
| 557 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 558 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 559 | endp->queue_next += 1; |
| 560 | if (ENDP_QUEUE_SIZE > --endp->queue_size) { |
| 561 | endp->active = 0; |
| 562 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 563 | } else { |
| 564 | struct list_head *next = endp->urb_more.next; |
| 565 | struct u132_urbq *urbq = list_entry(next, struct u132_urbq, |
| 566 | urb_more); |
| 567 | list_del(next); |
| 568 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| 569 | urbq->urb; |
| 570 | endp->active = 0; |
| 571 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 572 | kfree(urbq); |
Joe Perches | 7f26b3a | 2010-08-04 10:40:08 -0700 | [diff] [blame] | 573 | } |
| 574 | usb_hcd_giveback_urb(hcd, urb, status); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 575 | } |
| 576 | |
| 577 | static inline int edset_input(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 578 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 579 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 580 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 581 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 582 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 583 | return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, |
| 584 | urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 585 | } |
| 586 | |
| 587 | static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 588 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 589 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 590 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 591 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 592 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 593 | return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, |
| 594 | urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 595 | } |
| 596 | |
| 597 | static inline int edset_single(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 598 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 599 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 600 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 601 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 602 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 603 | return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, |
| 604 | endp, urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | static inline int edset_output(struct u132 *u132, struct u132_ring *ring, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 608 | struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, |
| 609 | void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, |
| 610 | int toggle_bits, int error_count, int condition_code, int repeat_number, |
| 611 | int halted, int skipped, int actual, int non_null)) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 612 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 613 | return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, |
| 614 | endp, urb, address, endp->usb_endp, toggle_bits, callback); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 615 | } |
| 616 | |
| 617 | |
| 618 | /* |
| 619 | * must not LOCK sw_lock |
| 620 | * |
| 621 | */ |
| 622 | 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] | 623 | int len, int toggle_bits, int error_count, int condition_code, |
| 624 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 625 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 626 | struct u132_endp *endp = data; |
| 627 | struct u132 *u132 = endp->u132; |
| 628 | u8 address = u132->addr[endp->usb_addr].address; |
| 629 | struct u132_udev *udev = &u132->udev[address]; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 630 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 631 | if (u132->going > 1) { |
| 632 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 633 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 634 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 635 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 636 | return; |
| 637 | } else if (endp->dequeueing) { |
| 638 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 639 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 640 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 641 | return; |
| 642 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 643 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 644 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 645 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 646 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 647 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 648 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 649 | struct u132_ring *ring = endp->ring; |
| 650 | u8 *u = urb->transfer_buffer + urb->actual_length; |
| 651 | u8 *b = buf; |
| 652 | int L = len; |
| 653 | |
| 654 | while (L-- > 0) |
| 655 | *u++ = *b++; |
| 656 | |
| 657 | urb->actual_length += len; |
| 658 | if ((condition_code == TD_CC_NOERROR) && |
| 659 | (urb->transfer_buffer_length > urb->actual_length)) { |
| 660 | endp->toggle_bits = toggle_bits; |
| 661 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 662 | 1 & toggle_bits); |
| 663 | if (urb->actual_length > 0) { |
| 664 | int retval; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 665 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 666 | retval = edset_single(u132, ring, endp, urb, |
| 667 | address, endp->toggle_bits, |
| 668 | u132_hcd_interrupt_recv); |
| 669 | if (retval != 0) |
| 670 | u132_hcd_giveback_urb(u132, endp, urb, |
| 671 | retval); |
| 672 | } else { |
| 673 | ring->in_use = 0; |
| 674 | endp->active = 0; |
| 675 | endp->jiffies = jiffies + |
| 676 | msecs_to_jiffies(urb->interval); |
| 677 | u132_ring_cancel_work(u132, ring); |
| 678 | u132_ring_queue_work(u132, ring, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 679 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 680 | u132_endp_put_kref(u132, endp); |
| 681 | } |
| 682 | return; |
| 683 | } else if ((condition_code == TD_DATAUNDERRUN) && |
| 684 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
| 685 | endp->toggle_bits = toggle_bits; |
| 686 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 687 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 688 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 689 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 690 | return; |
| 691 | } else { |
| 692 | if (condition_code == TD_CC_NOERROR) { |
| 693 | endp->toggle_bits = toggle_bits; |
| 694 | usb_settoggle(udev->usb_device, endp->usb_endp, |
| 695 | 0, 1 & toggle_bits); |
| 696 | } else if (condition_code == TD_CC_STALL) { |
| 697 | endp->toggle_bits = 0x2; |
| 698 | usb_settoggle(udev->usb_device, endp->usb_endp, |
| 699 | 0, 0); |
| 700 | } else { |
| 701 | endp->toggle_bits = 0x2; |
| 702 | usb_settoggle(udev->usb_device, endp->usb_endp, |
| 703 | 0, 0); |
| 704 | dev_err(&u132->platform_dev->dev, "urb=%p givin" |
| 705 | "g back INTERRUPT %s\n", urb, |
| 706 | cc_to_text[condition_code]); |
| 707 | } |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 708 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 709 | u132_hcd_giveback_urb(u132, endp, urb, |
| 710 | cc_to_error[condition_code]); |
| 711 | return; |
| 712 | } |
| 713 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 714 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 715 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 716 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 717 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 718 | return; |
| 719 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 720 | } |
| 721 | |
| 722 | 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] | 723 | int len, int toggle_bits, int error_count, int condition_code, |
| 724 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 725 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 726 | struct u132_endp *endp = data; |
| 727 | struct u132 *u132 = endp->u132; |
| 728 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 729 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 730 | if (u132->going > 1) { |
| 731 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 732 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 733 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 734 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 735 | return; |
| 736 | } else if (endp->dequeueing) { |
| 737 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 738 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 739 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 740 | return; |
| 741 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 742 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 743 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 744 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 745 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 746 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 747 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 748 | struct u132_ring *ring = endp->ring; |
| 749 | urb->actual_length += len; |
| 750 | endp->toggle_bits = toggle_bits; |
| 751 | if (urb->transfer_buffer_length > urb->actual_length) { |
| 752 | int retval; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 753 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 754 | retval = edset_output(u132, ring, endp, urb, address, |
| 755 | endp->toggle_bits, u132_hcd_bulk_output_sent); |
| 756 | if (retval != 0) |
| 757 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 758 | return; |
| 759 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 760 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 761 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 762 | return; |
| 763 | } |
| 764 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 765 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 766 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 767 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 768 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 769 | return; |
| 770 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 771 | } |
| 772 | |
| 773 | 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] | 774 | int len, int toggle_bits, int error_count, int condition_code, |
| 775 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 776 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 777 | struct u132_endp *endp = data; |
| 778 | struct u132 *u132 = endp->u132; |
| 779 | u8 address = u132->addr[endp->usb_addr].address; |
| 780 | struct u132_udev *udev = &u132->udev[address]; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 781 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 782 | if (u132->going > 1) { |
| 783 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 784 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 785 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 786 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 787 | return; |
| 788 | } else if (endp->dequeueing) { |
| 789 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 790 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 791 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 792 | return; |
| 793 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 794 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 795 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 796 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 797 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 798 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 799 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 800 | struct u132_ring *ring = endp->ring; |
| 801 | u8 *u = urb->transfer_buffer + urb->actual_length; |
| 802 | u8 *b = buf; |
| 803 | int L = len; |
| 804 | |
| 805 | while (L-- > 0) |
| 806 | *u++ = *b++; |
| 807 | |
| 808 | urb->actual_length += len; |
| 809 | if ((condition_code == TD_CC_NOERROR) && |
| 810 | (urb->transfer_buffer_length > urb->actual_length)) { |
| 811 | int retval; |
| 812 | endp->toggle_bits = toggle_bits; |
| 813 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 814 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 815 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 816 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 817 | ring->number, endp, urb, address, |
| 818 | endp->usb_endp, endp->toggle_bits, |
| 819 | u132_hcd_bulk_input_recv); |
| 820 | if (retval != 0) |
| 821 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 822 | return; |
| 823 | } else if (condition_code == TD_CC_NOERROR) { |
| 824 | endp->toggle_bits = toggle_bits; |
| 825 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 826 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 827 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 828 | u132_hcd_giveback_urb(u132, endp, urb, |
| 829 | cc_to_error[condition_code]); |
| 830 | return; |
| 831 | } else if ((condition_code == TD_DATAUNDERRUN) && |
| 832 | ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { |
| 833 | endp->toggle_bits = toggle_bits; |
| 834 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 835 | 1 & toggle_bits); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 836 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 837 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 838 | return; |
| 839 | } else if (condition_code == TD_DATAUNDERRUN) { |
| 840 | endp->toggle_bits = toggle_bits; |
| 841 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, |
| 842 | 1 & toggle_bits); |
| 843 | dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" |
| 844 | ") giving back BULK IN %s\n", urb, |
| 845 | cc_to_text[condition_code]); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 846 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 847 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 848 | return; |
| 849 | } else if (condition_code == TD_CC_STALL) { |
| 850 | endp->toggle_bits = 0x2; |
| 851 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 852 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 853 | u132_hcd_giveback_urb(u132, endp, urb, |
| 854 | cc_to_error[condition_code]); |
| 855 | return; |
| 856 | } else { |
| 857 | endp->toggle_bits = 0x2; |
| 858 | usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); |
| 859 | dev_err(&u132->platform_dev->dev, "urb=%p giving back B" |
| 860 | "ULK IN code=%d %s\n", urb, condition_code, |
| 861 | cc_to_text[condition_code]); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 862 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 863 | u132_hcd_giveback_urb(u132, endp, urb, |
| 864 | cc_to_error[condition_code]); |
| 865 | return; |
| 866 | } |
| 867 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 868 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 869 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 870 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 871 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 872 | return; |
| 873 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 874 | } |
| 875 | |
| 876 | 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] | 877 | int len, int toggle_bits, int error_count, int condition_code, |
| 878 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 879 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 880 | struct u132_endp *endp = data; |
| 881 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 882 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 883 | if (u132->going > 1) { |
| 884 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 885 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 886 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 887 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 888 | return; |
| 889 | } else if (endp->dequeueing) { |
| 890 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 891 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 892 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 893 | return; |
| 894 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 895 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 896 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 897 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 898 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 899 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 900 | } else if (!urb->unlinked) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 901 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 902 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 903 | return; |
| 904 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 905 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 906 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 907 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 908 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 909 | return; |
| 910 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 911 | } |
| 912 | |
| 913 | 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] | 914 | int len, int toggle_bits, int error_count, int condition_code, |
| 915 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 916 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 917 | struct u132_endp *endp = data; |
| 918 | struct u132 *u132 = endp->u132; |
| 919 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 920 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 921 | if (u132->going > 1) { |
| 922 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 923 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 924 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 925 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 926 | return; |
| 927 | } else if (endp->dequeueing) { |
| 928 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 929 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 930 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 931 | return; |
| 932 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 933 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 934 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 935 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 936 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 937 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 938 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 939 | struct u132_ring *ring = endp->ring; |
| 940 | u8 *u = urb->transfer_buffer; |
| 941 | u8 *b = buf; |
| 942 | int L = len; |
| 943 | |
| 944 | while (L-- > 0) |
| 945 | *u++ = *b++; |
| 946 | |
| 947 | urb->actual_length = len; |
| 948 | if ((condition_code == TD_CC_NOERROR) || ((condition_code == |
| 949 | TD_DATAUNDERRUN) && ((urb->transfer_flags & |
| 950 | URB_SHORT_NOT_OK) == 0))) { |
| 951 | int retval; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 952 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 953 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
| 954 | ring->number, endp, urb, address, |
| 955 | endp->usb_endp, 0x3, |
| 956 | u132_hcd_configure_empty_sent); |
| 957 | if (retval != 0) |
| 958 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 959 | return; |
| 960 | } else if (condition_code == TD_CC_STALL) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 961 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 962 | dev_warn(&u132->platform_dev->dev, "giving back SETUP I" |
| 963 | "NPUT STALL urb %p\n", urb); |
| 964 | u132_hcd_giveback_urb(u132, endp, urb, |
| 965 | cc_to_error[condition_code]); |
| 966 | return; |
| 967 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 968 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 969 | dev_err(&u132->platform_dev->dev, "giving back SETUP IN" |
| 970 | "PUT %s urb %p\n", cc_to_text[condition_code], |
| 971 | urb); |
| 972 | u132_hcd_giveback_urb(u132, endp, urb, |
| 973 | cc_to_error[condition_code]); |
| 974 | return; |
| 975 | } |
| 976 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 977 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 978 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 979 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 980 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 981 | return; |
| 982 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 983 | } |
| 984 | |
| 985 | 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] | 986 | int len, int toggle_bits, int error_count, int condition_code, |
| 987 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 988 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 989 | struct u132_endp *endp = data; |
| 990 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 991 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 992 | if (u132->going > 1) { |
| 993 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 994 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 995 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 996 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 997 | return; |
| 998 | } else if (endp->dequeueing) { |
| 999 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1000 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1001 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1002 | return; |
| 1003 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1004 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1005 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1006 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1007 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1008 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1009 | } else if (!urb->unlinked) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1010 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1011 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 1012 | return; |
| 1013 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1014 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1015 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1016 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1017 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1018 | return; |
| 1019 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1020 | } |
| 1021 | |
| 1022 | 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] | 1023 | int len, int toggle_bits, int error_count, int condition_code, |
| 1024 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1025 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1026 | struct u132_endp *endp = data; |
| 1027 | struct u132 *u132 = endp->u132; |
| 1028 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1029 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1030 | if (u132->going > 1) { |
| 1031 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1032 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1033 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1034 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1035 | return; |
| 1036 | } else if (endp->dequeueing) { |
| 1037 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1038 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1039 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1040 | return; |
| 1041 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1042 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1043 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1044 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1045 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1046 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1047 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1048 | if (usb_pipein(urb->pipe)) { |
| 1049 | int retval; |
| 1050 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1051 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1052 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1053 | ring->number, endp, urb, address, |
| 1054 | endp->usb_endp, 0, |
| 1055 | u132_hcd_configure_input_recv); |
| 1056 | if (retval != 0) |
| 1057 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1058 | return; |
| 1059 | } else { |
| 1060 | int retval; |
| 1061 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1062 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1063 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1064 | ring->number, endp, urb, address, |
| 1065 | endp->usb_endp, 0, |
| 1066 | u132_hcd_configure_empty_recv); |
| 1067 | if (retval != 0) |
| 1068 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1069 | return; |
| 1070 | } |
| 1071 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1072 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1073 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1074 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1075 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1076 | return; |
| 1077 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1078 | } |
| 1079 | |
| 1080 | static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1081 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
| 1082 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1083 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1084 | struct u132_endp *endp = data; |
| 1085 | struct u132 *u132 = endp->u132; |
| 1086 | u8 address = u132->addr[endp->usb_addr].address; |
| 1087 | struct u132_udev *udev = &u132->udev[address]; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1088 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1089 | if (u132->going > 1) { |
| 1090 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1091 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1092 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1093 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1094 | return; |
| 1095 | } else if (endp->dequeueing) { |
| 1096 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1097 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1098 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1099 | return; |
| 1100 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1101 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1102 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1103 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1104 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1105 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1106 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1107 | u132->addr[0].address = 0; |
| 1108 | endp->usb_addr = udev->usb_addr; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1109 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1110 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 1111 | return; |
| 1112 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1113 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1114 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1115 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1116 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1117 | return; |
| 1118 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1119 | } |
| 1120 | |
| 1121 | static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1122 | u8 *buf, int len, int toggle_bits, int error_count, int condition_code, |
| 1123 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1124 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1125 | struct u132_endp *endp = data; |
| 1126 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1127 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1128 | if (u132->going > 1) { |
| 1129 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1130 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1131 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1132 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1133 | return; |
| 1134 | } else if (endp->dequeueing) { |
| 1135 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1136 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1137 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1138 | return; |
| 1139 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1140 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1141 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1142 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1143 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1144 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1145 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1146 | int retval; |
| 1147 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1148 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1149 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1150 | ring->number, endp, urb, 0, endp->usb_endp, 0, |
| 1151 | u132_hcd_enumeration_empty_recv); |
| 1152 | if (retval != 0) |
| 1153 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1154 | return; |
| 1155 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1156 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1157 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1158 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1159 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1160 | return; |
| 1161 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1162 | } |
| 1163 | |
| 1164 | 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] | 1165 | int len, int toggle_bits, int error_count, int condition_code, |
| 1166 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1167 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1168 | struct u132_endp *endp = data; |
| 1169 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1170 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1171 | if (u132->going > 1) { |
| 1172 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1173 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1174 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1175 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1176 | return; |
| 1177 | } else if (endp->dequeueing) { |
| 1178 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1179 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1180 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1181 | return; |
| 1182 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1183 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1184 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1185 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1186 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1187 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1188 | } else if (!urb->unlinked) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1189 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1190 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
| 1191 | return; |
| 1192 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1193 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1194 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1195 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1196 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1197 | return; |
| 1198 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1199 | } |
| 1200 | |
| 1201 | 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] | 1202 | int len, int toggle_bits, int error_count, int condition_code, |
| 1203 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1204 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1205 | struct u132_endp *endp = data; |
| 1206 | struct u132 *u132 = endp->u132; |
| 1207 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1208 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1209 | if (u132->going > 1) { |
| 1210 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1211 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1212 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1213 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1214 | return; |
| 1215 | } else if (endp->dequeueing) { |
| 1216 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1217 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1218 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1219 | return; |
| 1220 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1221 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1222 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1223 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1224 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1225 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1226 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1227 | int retval; |
| 1228 | struct u132_ring *ring = endp->ring; |
| 1229 | u8 *u = urb->transfer_buffer; |
| 1230 | u8 *b = buf; |
| 1231 | int L = len; |
| 1232 | |
| 1233 | while (L-- > 0) |
| 1234 | *u++ = *b++; |
| 1235 | |
| 1236 | urb->actual_length = len; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1237 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1238 | retval = usb_ftdi_elan_edset_empty(u132->platform_dev, |
| 1239 | ring->number, endp, urb, address, endp->usb_endp, 0x3, |
| 1240 | u132_hcd_initial_empty_sent); |
| 1241 | if (retval != 0) |
| 1242 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1243 | return; |
| 1244 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1245 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1246 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1247 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1248 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1249 | return; |
| 1250 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1251 | } |
| 1252 | |
| 1253 | 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] | 1254 | int len, int toggle_bits, int error_count, int condition_code, |
| 1255 | int repeat_number, int halted, int skipped, int actual, int non_null) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1256 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1257 | struct u132_endp *endp = data; |
| 1258 | struct u132 *u132 = endp->u132; |
| 1259 | u8 address = u132->addr[endp->usb_addr].address; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1260 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1261 | if (u132->going > 1) { |
| 1262 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1263 | , u132->going); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1264 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1265 | u132_hcd_forget_urb(u132, endp, urb, -ENODEV); |
| 1266 | return; |
| 1267 | } else if (endp->dequeueing) { |
| 1268 | endp->dequeueing = 0; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1269 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1270 | u132_hcd_giveback_urb(u132, endp, urb, -EINTR); |
| 1271 | return; |
| 1272 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1273 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 1274 | "urb=%p\n", urb); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1275 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1276 | u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); |
| 1277 | return; |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1278 | } else if (!urb->unlinked) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1279 | int retval; |
| 1280 | struct u132_ring *ring = endp->ring; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1281 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1282 | retval = usb_ftdi_elan_edset_input(u132->platform_dev, |
| 1283 | ring->number, endp, urb, address, endp->usb_endp, 0, |
| 1284 | u132_hcd_initial_input_recv); |
| 1285 | if (retval != 0) |
| 1286 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1287 | return; |
| 1288 | } else { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 1289 | dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p " |
| 1290 | "unlinked=%d\n", urb, urb->unlinked); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1291 | mutex_unlock(&u132->scheduler_lock); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 1292 | u132_hcd_giveback_urb(u132, endp, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1293 | return; |
| 1294 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1295 | } |
| 1296 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1297 | /* |
| 1298 | * this work function is only executed from the work queue |
| 1299 | * |
| 1300 | */ |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1301 | static void u132_hcd_ring_work_scheduler(struct work_struct *work) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1302 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1303 | struct u132_ring *ring = |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1304 | container_of(work, struct u132_ring, scheduler.work); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1305 | struct u132 *u132 = ring->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1306 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1307 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1308 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1309 | u132_ring_put_kref(u132, ring); |
| 1310 | return; |
| 1311 | } else if (ring->curr_endp) { |
| 1312 | struct u132_endp *last_endp = ring->curr_endp; |
| 1313 | struct list_head *scan; |
| 1314 | struct list_head *head = &last_endp->endp_ring; |
| 1315 | unsigned long wakeup = 0; |
| 1316 | list_for_each(scan, head) { |
| 1317 | struct u132_endp *endp = list_entry(scan, |
| 1318 | struct u132_endp, endp_ring); |
| 1319 | if (endp->queue_next == endp->queue_last) { |
| 1320 | } else if ((endp->delayed == 0) |
| 1321 | || time_after_eq(jiffies, endp->jiffies)) { |
| 1322 | ring->curr_endp = endp; |
| 1323 | u132_endp_cancel_work(u132, last_endp); |
| 1324 | u132_endp_queue_work(u132, last_endp, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1325 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1326 | u132_ring_put_kref(u132, ring); |
| 1327 | return; |
| 1328 | } else { |
| 1329 | unsigned long delta = endp->jiffies - jiffies; |
| 1330 | if (delta > wakeup) |
| 1331 | wakeup = delta; |
| 1332 | } |
| 1333 | } |
| 1334 | if (last_endp->queue_next == last_endp->queue_last) { |
| 1335 | } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, |
| 1336 | last_endp->jiffies)) { |
| 1337 | u132_endp_cancel_work(u132, last_endp); |
| 1338 | u132_endp_queue_work(u132, last_endp, 0); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1339 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1340 | u132_ring_put_kref(u132, ring); |
| 1341 | return; |
| 1342 | } else { |
| 1343 | unsigned long delta = last_endp->jiffies - jiffies; |
| 1344 | if (delta > wakeup) |
| 1345 | wakeup = delta; |
| 1346 | } |
| 1347 | if (wakeup > 0) { |
| 1348 | u132_ring_requeue_work(u132, ring, wakeup); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1349 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1350 | return; |
| 1351 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1352 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1353 | u132_ring_put_kref(u132, ring); |
| 1354 | return; |
| 1355 | } |
| 1356 | } else { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1357 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1358 | u132_ring_put_kref(u132, ring); |
| 1359 | return; |
| 1360 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1361 | } |
| 1362 | |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1363 | static void u132_hcd_endp_work_scheduler(struct work_struct *work) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1364 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1365 | struct u132_ring *ring; |
| 1366 | struct u132_endp *endp = |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 1367 | container_of(work, struct u132_endp, scheduler.work); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1368 | struct u132 *u132 = endp->u132; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1369 | mutex_lock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1370 | ring = endp->ring; |
| 1371 | if (endp->edset_flush) { |
| 1372 | endp->edset_flush = 0; |
| 1373 | if (endp->dequeueing) |
| 1374 | usb_ftdi_elan_edset_flush(u132->platform_dev, |
| 1375 | ring->number, endp); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1376 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1377 | u132_endp_put_kref(u132, endp); |
| 1378 | return; |
| 1379 | } else if (endp->active) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1380 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1381 | u132_endp_put_kref(u132, endp); |
| 1382 | return; |
| 1383 | } else if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1384 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1385 | u132_endp_put_kref(u132, endp); |
| 1386 | return; |
| 1387 | } else if (endp->queue_next == endp->queue_last) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1388 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1389 | u132_endp_put_kref(u132, endp); |
| 1390 | return; |
| 1391 | } else if (endp->pipetype == PIPE_INTERRUPT) { |
| 1392 | u8 address = u132->addr[endp->usb_addr].address; |
| 1393 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1394 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1395 | u132_endp_put_kref(u132, endp); |
| 1396 | return; |
| 1397 | } else { |
| 1398 | int retval; |
| 1399 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1400 | endp->queue_next]; |
| 1401 | endp->active = 1; |
| 1402 | ring->curr_endp = endp; |
| 1403 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1404 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1405 | retval = edset_single(u132, ring, endp, urb, address, |
| 1406 | endp->toggle_bits, u132_hcd_interrupt_recv); |
| 1407 | if (retval != 0) |
| 1408 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1409 | return; |
| 1410 | } |
| 1411 | } else if (endp->pipetype == PIPE_CONTROL) { |
| 1412 | u8 address = u132->addr[endp->usb_addr].address; |
| 1413 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1414 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1415 | u132_endp_put_kref(u132, endp); |
| 1416 | return; |
| 1417 | } else if (address == 0) { |
| 1418 | int retval; |
| 1419 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1420 | endp->queue_next]; |
| 1421 | endp->active = 1; |
| 1422 | ring->curr_endp = endp; |
| 1423 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1424 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1425 | retval = edset_setup(u132, ring, endp, urb, address, |
| 1426 | 0x2, u132_hcd_initial_setup_sent); |
| 1427 | if (retval != 0) |
| 1428 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1429 | return; |
| 1430 | } else if (endp->usb_addr == 0) { |
| 1431 | int retval; |
| 1432 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1433 | endp->queue_next]; |
| 1434 | endp->active = 1; |
| 1435 | ring->curr_endp = endp; |
| 1436 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1437 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1438 | retval = edset_setup(u132, ring, endp, urb, 0, 0x2, |
| 1439 | u132_hcd_enumeration_address_sent); |
| 1440 | if (retval != 0) |
| 1441 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1442 | return; |
| 1443 | } else { |
| 1444 | int retval; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1445 | struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & |
| 1446 | endp->queue_next]; |
Randy Dunlap | 1d6ec81 | 2010-05-06 16:46:03 -0700 | [diff] [blame] | 1447 | address = u132->addr[endp->usb_addr].address; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1448 | endp->active = 1; |
| 1449 | ring->curr_endp = endp; |
| 1450 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1451 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1452 | retval = edset_setup(u132, ring, endp, urb, address, |
| 1453 | 0x2, u132_hcd_configure_setup_sent); |
| 1454 | if (retval != 0) |
| 1455 | u132_hcd_giveback_urb(u132, endp, urb, retval); |
| 1456 | return; |
| 1457 | } |
| 1458 | } else { |
| 1459 | if (endp->input) { |
| 1460 | u8 address = u132->addr[endp->usb_addr].address; |
| 1461 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1462 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1463 | u132_endp_put_kref(u132, endp); |
| 1464 | return; |
| 1465 | } else { |
| 1466 | int retval; |
| 1467 | struct urb *urb = endp->urb_list[ |
| 1468 | ENDP_QUEUE_MASK & endp->queue_next]; |
| 1469 | endp->active = 1; |
| 1470 | ring->curr_endp = endp; |
| 1471 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1472 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1473 | retval = edset_input(u132, ring, endp, urb, |
| 1474 | address, endp->toggle_bits, |
| 1475 | u132_hcd_bulk_input_recv); |
| 1476 | if (retval == 0) { |
| 1477 | } else |
| 1478 | u132_hcd_giveback_urb(u132, endp, urb, |
| 1479 | retval); |
| 1480 | return; |
| 1481 | } |
| 1482 | } else { /* output pipe */ |
| 1483 | u8 address = u132->addr[endp->usb_addr].address; |
| 1484 | if (ring->in_use) { |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1485 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1486 | u132_endp_put_kref(u132, endp); |
| 1487 | return; |
| 1488 | } else { |
| 1489 | int retval; |
| 1490 | struct urb *urb = endp->urb_list[ |
| 1491 | ENDP_QUEUE_MASK & endp->queue_next]; |
| 1492 | endp->active = 1; |
| 1493 | ring->curr_endp = endp; |
| 1494 | ring->in_use = 1; |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 1495 | mutex_unlock(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1496 | retval = edset_output(u132, ring, endp, urb, |
| 1497 | address, endp->toggle_bits, |
| 1498 | u132_hcd_bulk_output_sent); |
| 1499 | if (retval == 0) { |
| 1500 | } else |
| 1501 | u132_hcd_giveback_urb(u132, endp, urb, |
| 1502 | retval); |
| 1503 | return; |
| 1504 | } |
| 1505 | } |
| 1506 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1507 | } |
Gabriel C | 5b570d4 | 2007-07-30 12:57:03 +0200 | [diff] [blame] | 1508 | #ifdef CONFIG_PM |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1509 | |
| 1510 | static void port_power(struct u132 *u132, int pn, int is_on) |
| 1511 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1512 | u132->port[pn].power = is_on; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1513 | } |
| 1514 | |
Gabriel C | 5b570d4 | 2007-07-30 12:57:03 +0200 | [diff] [blame] | 1515 | #endif |
| 1516 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1517 | static void u132_power(struct u132 *u132, int is_on) |
| 1518 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1519 | struct usb_hcd *hcd = u132_to_hcd(u132) |
| 1520 | ; /* hub is inactive unless the port is powered */ |
| 1521 | if (is_on) { |
| 1522 | if (u132->power) |
| 1523 | return; |
| 1524 | u132->power = 1; |
| 1525 | } else { |
| 1526 | u132->power = 0; |
| 1527 | hcd->state = HC_STATE_HALT; |
| 1528 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1529 | } |
| 1530 | |
| 1531 | static int u132_periodic_reinit(struct u132 *u132) |
| 1532 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1533 | int retval; |
| 1534 | u32 fi = u132->hc_fminterval & 0x03fff; |
| 1535 | u32 fit; |
| 1536 | u32 fminterval; |
| 1537 | retval = u132_read_pcimem(u132, fminterval, &fminterval); |
| 1538 | if (retval) |
| 1539 | return retval; |
| 1540 | fit = fminterval & FIT; |
| 1541 | retval = u132_write_pcimem(u132, fminterval, |
| 1542 | (fit ^ FIT) | u132->hc_fminterval); |
| 1543 | if (retval) |
| 1544 | return retval; |
| 1545 | retval = u132_write_pcimem(u132, periodicstart, |
| 1546 | ((9 * fi) / 10) & 0x3fff); |
| 1547 | if (retval) |
| 1548 | return retval; |
| 1549 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1550 | } |
| 1551 | |
| 1552 | static char *hcfs2string(int state) |
| 1553 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1554 | switch (state) { |
| 1555 | case OHCI_USB_RESET: |
| 1556 | return "reset"; |
| 1557 | case OHCI_USB_RESUME: |
| 1558 | return "resume"; |
| 1559 | case OHCI_USB_OPER: |
| 1560 | return "operational"; |
| 1561 | case OHCI_USB_SUSPEND: |
| 1562 | return "suspend"; |
| 1563 | } |
| 1564 | return "?"; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1565 | } |
| 1566 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1567 | static int u132_init(struct u132 *u132) |
| 1568 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1569 | int retval; |
| 1570 | u32 control; |
| 1571 | u132_disable(u132); |
| 1572 | u132->next_statechange = jiffies; |
| 1573 | retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); |
| 1574 | if (retval) |
| 1575 | return retval; |
| 1576 | retval = u132_read_pcimem(u132, control, &control); |
| 1577 | if (retval) |
| 1578 | return retval; |
| 1579 | if (u132->num_ports == 0) { |
| 1580 | u32 rh_a = -1; |
| 1581 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
| 1582 | if (retval) |
| 1583 | return retval; |
| 1584 | u132->num_ports = rh_a & RH_A_NDP; |
| 1585 | retval = read_roothub_info(u132); |
| 1586 | if (retval) |
| 1587 | return retval; |
| 1588 | } |
| 1589 | if (u132->num_ports > MAX_U132_PORTS) |
| 1590 | return -EINVAL; |
| 1591 | |
| 1592 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1593 | } |
| 1594 | |
| 1595 | |
| 1596 | /* Start an OHCI controller, set the BUS operational |
| 1597 | * resets USB and controller |
| 1598 | * enable interrupts |
| 1599 | */ |
| 1600 | static int u132_run(struct u132 *u132) |
| 1601 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1602 | int retval; |
| 1603 | u32 control; |
| 1604 | u32 status; |
| 1605 | u32 fminterval; |
| 1606 | u32 periodicstart; |
| 1607 | u32 cmdstatus; |
| 1608 | u32 roothub_a; |
| 1609 | int mask = OHCI_INTR_INIT; |
| 1610 | int first = u132->hc_fminterval == 0; |
| 1611 | int sleep_time = 0; |
| 1612 | int reset_timeout = 30; /* ... allow extra time */ |
| 1613 | u132_disable(u132); |
| 1614 | if (first) { |
| 1615 | u32 temp; |
| 1616 | retval = u132_read_pcimem(u132, fminterval, &temp); |
| 1617 | if (retval) |
| 1618 | return retval; |
| 1619 | u132->hc_fminterval = temp & 0x3fff; |
| 1620 | u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; |
| 1621 | } |
| 1622 | retval = u132_read_pcimem(u132, control, &u132->hc_control); |
| 1623 | if (retval) |
| 1624 | return retval; |
| 1625 | dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " |
| 1626 | "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), |
| 1627 | u132->hc_control); |
| 1628 | switch (u132->hc_control & OHCI_CTRL_HCFS) { |
| 1629 | case OHCI_USB_OPER: |
| 1630 | sleep_time = 0; |
| 1631 | break; |
| 1632 | case OHCI_USB_SUSPEND: |
| 1633 | case OHCI_USB_RESUME: |
| 1634 | u132->hc_control &= OHCI_CTRL_RWC; |
| 1635 | u132->hc_control |= OHCI_USB_RESUME; |
| 1636 | sleep_time = 10; |
| 1637 | break; |
| 1638 | default: |
| 1639 | u132->hc_control &= OHCI_CTRL_RWC; |
| 1640 | u132->hc_control |= OHCI_USB_RESET; |
| 1641 | sleep_time = 50; |
| 1642 | break; |
| 1643 | } |
| 1644 | retval = u132_write_pcimem(u132, control, u132->hc_control); |
| 1645 | if (retval) |
| 1646 | return retval; |
| 1647 | retval = u132_read_pcimem(u132, control, &control); |
| 1648 | if (retval) |
| 1649 | return retval; |
| 1650 | msleep(sleep_time); |
| 1651 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
| 1652 | if (retval) |
| 1653 | return retval; |
| 1654 | if (!(roothub_a & RH_A_NPS)) { |
| 1655 | int temp; /* power down each port */ |
| 1656 | for (temp = 0; temp < u132->num_ports; temp++) { |
| 1657 | retval = u132_write_pcimem(u132, |
| 1658 | roothub.portstatus[temp], RH_PS_LSDA); |
| 1659 | if (retval) |
| 1660 | return retval; |
| 1661 | } |
| 1662 | } |
| 1663 | retval = u132_read_pcimem(u132, control, &control); |
| 1664 | if (retval) |
| 1665 | return retval; |
| 1666 | retry: |
| 1667 | retval = u132_read_pcimem(u132, cmdstatus, &status); |
| 1668 | if (retval) |
| 1669 | return retval; |
| 1670 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); |
| 1671 | if (retval) |
| 1672 | return retval; |
| 1673 | extra: { |
| 1674 | retval = u132_read_pcimem(u132, cmdstatus, &status); |
| 1675 | if (retval) |
| 1676 | return retval; |
| 1677 | if (0 != (status & OHCI_HCR)) { |
| 1678 | if (--reset_timeout == 0) { |
| 1679 | dev_err(&u132->platform_dev->dev, "USB HC reset" |
| 1680 | " timed out!\n"); |
| 1681 | return -ENODEV; |
| 1682 | } else { |
| 1683 | msleep(5); |
| 1684 | goto extra; |
| 1685 | } |
| 1686 | } |
| 1687 | } |
| 1688 | if (u132->flags & OHCI_QUIRK_INITRESET) { |
| 1689 | retval = u132_write_pcimem(u132, control, u132->hc_control); |
| 1690 | if (retval) |
| 1691 | return retval; |
| 1692 | retval = u132_read_pcimem(u132, control, &control); |
| 1693 | if (retval) |
| 1694 | return retval; |
| 1695 | } |
| 1696 | retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); |
| 1697 | if (retval) |
| 1698 | return retval; |
| 1699 | retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); |
| 1700 | if (retval) |
| 1701 | return retval; |
| 1702 | retval = u132_write_pcimem(u132, hcca, 0x00000000); |
| 1703 | if (retval) |
| 1704 | return retval; |
| 1705 | retval = u132_periodic_reinit(u132); |
| 1706 | if (retval) |
| 1707 | return retval; |
| 1708 | retval = u132_read_pcimem(u132, fminterval, &fminterval); |
| 1709 | if (retval) |
| 1710 | return retval; |
| 1711 | retval = u132_read_pcimem(u132, periodicstart, &periodicstart); |
| 1712 | if (retval) |
| 1713 | return retval; |
| 1714 | if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { |
| 1715 | if (!(u132->flags & OHCI_QUIRK_INITRESET)) { |
| 1716 | u132->flags |= OHCI_QUIRK_INITRESET; |
| 1717 | goto retry; |
| 1718 | } else |
| 1719 | dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" |
| 1720 | "\n", fminterval, periodicstart); |
| 1721 | } /* start controller operations */ |
| 1722 | u132->hc_control &= OHCI_CTRL_RWC; |
| 1723 | u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; |
| 1724 | retval = u132_write_pcimem(u132, control, u132->hc_control); |
| 1725 | if (retval) |
| 1726 | return retval; |
| 1727 | retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); |
| 1728 | if (retval) |
| 1729 | return retval; |
| 1730 | retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); |
| 1731 | if (retval) |
| 1732 | return retval; |
| 1733 | retval = u132_read_pcimem(u132, control, &control); |
| 1734 | if (retval) |
| 1735 | return retval; |
| 1736 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
| 1737 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); |
| 1738 | if (retval) |
| 1739 | return retval; |
| 1740 | retval = u132_write_pcimem(u132, intrstatus, mask); |
| 1741 | if (retval) |
| 1742 | return retval; |
| 1743 | retval = u132_write_pcimem(u132, intrdisable, |
| 1744 | OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | |
| 1745 | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | |
| 1746 | OHCI_INTR_SO); |
| 1747 | if (retval) |
| 1748 | return retval; /* handle root hub init quirks ... */ |
| 1749 | retval = u132_read_pcimem(u132, roothub.a, &roothub_a); |
| 1750 | if (retval) |
| 1751 | return retval; |
| 1752 | roothub_a &= ~(RH_A_PSM | RH_A_OCPM); |
| 1753 | if (u132->flags & OHCI_QUIRK_SUPERIO) { |
| 1754 | roothub_a |= RH_A_NOCP; |
| 1755 | roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); |
| 1756 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
| 1757 | if (retval) |
| 1758 | return retval; |
| 1759 | } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { |
| 1760 | roothub_a |= RH_A_NPS; |
| 1761 | retval = u132_write_pcimem(u132, roothub.a, roothub_a); |
| 1762 | if (retval) |
| 1763 | return retval; |
| 1764 | } |
| 1765 | retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); |
| 1766 | if (retval) |
| 1767 | return retval; |
| 1768 | retval = u132_write_pcimem(u132, roothub.b, |
| 1769 | (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); |
| 1770 | if (retval) |
| 1771 | return retval; |
| 1772 | retval = u132_read_pcimem(u132, control, &control); |
| 1773 | if (retval) |
| 1774 | return retval; |
| 1775 | mdelay((roothub_a >> 23) & 0x1fe); |
| 1776 | u132_to_hcd(u132)->state = HC_STATE_RUNNING; |
| 1777 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1778 | } |
| 1779 | |
| 1780 | static void u132_hcd_stop(struct usb_hcd *hcd) |
| 1781 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1782 | struct u132 *u132 = hcd_to_u132(hcd); |
| 1783 | if (u132->going > 1) { |
| 1784 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" |
| 1785 | "een removed %d\n", u132, hcd, u132->going); |
| 1786 | } else if (u132->going > 0) { |
| 1787 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
| 1788 | "ed\n", hcd); |
| 1789 | } else { |
| 1790 | mutex_lock(&u132->sw_lock); |
| 1791 | msleep(100); |
| 1792 | u132_power(u132, 0); |
| 1793 | mutex_unlock(&u132->sw_lock); |
| 1794 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1795 | } |
| 1796 | |
| 1797 | static int u132_hcd_start(struct usb_hcd *hcd) |
| 1798 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1799 | struct u132 *u132 = hcd_to_u132(hcd); |
| 1800 | if (u132->going > 1) { |
| 1801 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1802 | , u132->going); |
| 1803 | return -ENODEV; |
| 1804 | } else if (u132->going > 0) { |
| 1805 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 1806 | return -ESHUTDOWN; |
| 1807 | } else if (hcd->self.controller) { |
| 1808 | int retval; |
| 1809 | struct platform_device *pdev = |
| 1810 | to_platform_device(hcd->self.controller); |
| 1811 | u16 vendor = ((struct u132_platform_data *) |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 1812 | dev_get_platdata(&pdev->dev))->vendor; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1813 | u16 device = ((struct u132_platform_data *) |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 1814 | dev_get_platdata(&pdev->dev))->device; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1815 | mutex_lock(&u132->sw_lock); |
| 1816 | msleep(10); |
| 1817 | if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { |
| 1818 | u132->flags = OHCI_QUIRK_AMD756; |
| 1819 | } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { |
| 1820 | dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" |
| 1821 | "ounds unavailable\n"); |
| 1822 | } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) |
| 1823 | u132->flags |= OHCI_QUIRK_ZFMICRO; |
| 1824 | retval = u132_run(u132); |
| 1825 | if (retval) { |
| 1826 | u132_disable(u132); |
| 1827 | u132->going = 1; |
| 1828 | } |
| 1829 | msleep(100); |
| 1830 | mutex_unlock(&u132->sw_lock); |
| 1831 | return retval; |
| 1832 | } else { |
| 1833 | dev_err(&u132->platform_dev->dev, "platform_device missing\n"); |
| 1834 | return -ENODEV; |
| 1835 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1836 | } |
| 1837 | |
| 1838 | static int u132_hcd_reset(struct usb_hcd *hcd) |
| 1839 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1840 | struct u132 *u132 = hcd_to_u132(hcd); |
| 1841 | if (u132->going > 1) { |
| 1842 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 1843 | , u132->going); |
| 1844 | return -ENODEV; |
| 1845 | } else if (u132->going > 0) { |
| 1846 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 1847 | return -ESHUTDOWN; |
| 1848 | } else { |
| 1849 | int retval; |
| 1850 | mutex_lock(&u132->sw_lock); |
| 1851 | retval = u132_init(u132); |
| 1852 | if (retval) { |
| 1853 | u132_disable(u132); |
| 1854 | u132->going = 1; |
| 1855 | } |
| 1856 | mutex_unlock(&u132->sw_lock); |
| 1857 | return retval; |
| 1858 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1859 | } |
| 1860 | |
| 1861 | static int create_endpoint_and_queue_int(struct u132 *u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1862 | struct u132_udev *udev, struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1863 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
| 1864 | gfp_t mem_flags) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 1865 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1866 | struct u132_ring *ring; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1867 | unsigned long irqs; |
| 1868 | int rc; |
| 1869 | u8 endp_number; |
| 1870 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| 1871 | |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1872 | if (!endp) |
| 1873 | return -ENOMEM; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1874 | |
| 1875 | spin_lock_init(&endp->queue_lock.slock); |
| 1876 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| 1877 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| 1878 | if (rc) { |
| 1879 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 1880 | kfree(endp); |
| 1881 | return rc; |
| 1882 | } |
| 1883 | |
| 1884 | endp_number = ++u132->num_endpoints; |
| 1885 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1886 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| 1887 | INIT_LIST_HEAD(&endp->urb_more); |
| 1888 | ring = endp->ring = &u132->ring[0]; |
| 1889 | if (ring->curr_endp) { |
| 1890 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| 1891 | } else { |
| 1892 | INIT_LIST_HEAD(&endp->endp_ring); |
| 1893 | ring->curr_endp = endp; |
| 1894 | } |
| 1895 | ring->length += 1; |
| 1896 | endp->dequeueing = 0; |
| 1897 | endp->edset_flush = 0; |
| 1898 | endp->active = 0; |
| 1899 | endp->delayed = 0; |
| 1900 | endp->endp_number = endp_number; |
| 1901 | endp->u132 = u132; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 1902 | endp->hep = urb->ep; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 1903 | endp->pipetype = usb_pipetype(urb->pipe); |
| 1904 | u132_endp_init_kref(u132, endp); |
| 1905 | if (usb_pipein(urb->pipe)) { |
| 1906 | endp->toggle_bits = 0x2; |
| 1907 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
| 1908 | endp->input = 1; |
| 1909 | endp->output = 0; |
| 1910 | udev->endp_number_in[usb_endp] = endp_number; |
| 1911 | u132_udev_get_kref(u132, udev); |
| 1912 | } else { |
| 1913 | endp->toggle_bits = 0x2; |
| 1914 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
| 1915 | endp->input = 0; |
| 1916 | endp->output = 1; |
| 1917 | udev->endp_number_out[usb_endp] = endp_number; |
| 1918 | u132_udev_get_kref(u132, udev); |
| 1919 | } |
| 1920 | urb->hcpriv = u132; |
| 1921 | endp->delayed = 1; |
| 1922 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
| 1923 | endp->udev_number = address; |
| 1924 | endp->usb_addr = usb_addr; |
| 1925 | endp->usb_endp = usb_endp; |
| 1926 | endp->queue_size = 1; |
| 1927 | endp->queue_last = 0; |
| 1928 | endp->queue_next = 0; |
| 1929 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 1930 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 1931 | u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); |
| 1932 | return 0; |
| 1933 | } |
| 1934 | |
| 1935 | static int queue_int_on_old_endpoint(struct u132 *u132, |
| 1936 | struct u132_udev *udev, struct urb *urb, |
| 1937 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| 1938 | u8 usb_endp, u8 address) |
| 1939 | { |
| 1940 | urb->hcpriv = u132; |
| 1941 | endp->delayed = 1; |
| 1942 | endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); |
| 1943 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 1944 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 1945 | } else { |
| 1946 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
| 1947 | GFP_ATOMIC); |
| 1948 | if (urbq == NULL) { |
| 1949 | endp->queue_size -= 1; |
| 1950 | return -ENOMEM; |
| 1951 | } else { |
| 1952 | list_add_tail(&urbq->urb_more, &endp->urb_more); |
| 1953 | urbq->urb = urb; |
| 1954 | } |
| 1955 | } |
| 1956 | return 0; |
| 1957 | } |
| 1958 | |
| 1959 | static int create_endpoint_and_queue_bulk(struct u132 *u132, |
| 1960 | struct u132_udev *udev, struct urb *urb, |
| 1961 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, |
| 1962 | gfp_t mem_flags) |
| 1963 | { |
| 1964 | int ring_number; |
| 1965 | struct u132_ring *ring; |
| 1966 | unsigned long irqs; |
| 1967 | int rc; |
| 1968 | u8 endp_number; |
| 1969 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| 1970 | |
| 1971 | if (!endp) |
| 1972 | return -ENOMEM; |
| 1973 | |
| 1974 | spin_lock_init(&endp->queue_lock.slock); |
| 1975 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| 1976 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| 1977 | if (rc) { |
| 1978 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 1979 | kfree(endp); |
| 1980 | return rc; |
| 1981 | } |
| 1982 | |
| 1983 | endp_number = ++u132->num_endpoints; |
| 1984 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| 1985 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| 1986 | INIT_LIST_HEAD(&endp->urb_more); |
| 1987 | endp->dequeueing = 0; |
| 1988 | endp->edset_flush = 0; |
| 1989 | endp->active = 0; |
| 1990 | endp->delayed = 0; |
| 1991 | endp->endp_number = endp_number; |
| 1992 | endp->u132 = u132; |
| 1993 | endp->hep = urb->ep; |
| 1994 | endp->pipetype = usb_pipetype(urb->pipe); |
| 1995 | u132_endp_init_kref(u132, endp); |
| 1996 | if (usb_pipein(urb->pipe)) { |
| 1997 | endp->toggle_bits = 0x2; |
| 1998 | usb_settoggle(udev->usb_device, usb_endp, 0, 0); |
| 1999 | ring_number = 3; |
| 2000 | endp->input = 1; |
| 2001 | endp->output = 0; |
| 2002 | udev->endp_number_in[usb_endp] = endp_number; |
| 2003 | u132_udev_get_kref(u132, udev); |
| 2004 | } else { |
| 2005 | endp->toggle_bits = 0x2; |
| 2006 | usb_settoggle(udev->usb_device, usb_endp, 1, 0); |
| 2007 | ring_number = 2; |
| 2008 | endp->input = 0; |
| 2009 | endp->output = 1; |
| 2010 | udev->endp_number_out[usb_endp] = endp_number; |
| 2011 | u132_udev_get_kref(u132, udev); |
| 2012 | } |
| 2013 | ring = endp->ring = &u132->ring[ring_number - 1]; |
| 2014 | if (ring->curr_endp) { |
| 2015 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| 2016 | } else { |
| 2017 | INIT_LIST_HEAD(&endp->endp_ring); |
| 2018 | ring->curr_endp = endp; |
| 2019 | } |
| 2020 | ring->length += 1; |
| 2021 | urb->hcpriv = u132; |
| 2022 | endp->udev_number = address; |
| 2023 | endp->usb_addr = usb_addr; |
| 2024 | endp->usb_endp = usb_endp; |
| 2025 | endp->queue_size = 1; |
| 2026 | endp->queue_last = 0; |
| 2027 | endp->queue_next = 0; |
| 2028 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2029 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2030 | u132_endp_queue_work(u132, endp, 0); |
| 2031 | return 0; |
| 2032 | } |
| 2033 | |
| 2034 | static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, |
| 2035 | struct urb *urb, |
| 2036 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| 2037 | u8 usb_endp, u8 address) |
| 2038 | { |
| 2039 | urb->hcpriv = u132; |
| 2040 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2041 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2042 | } else { |
| 2043 | struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), |
| 2044 | GFP_ATOMIC); |
| 2045 | if (urbq == NULL) { |
| 2046 | endp->queue_size -= 1; |
| 2047 | return -ENOMEM; |
| 2048 | } else { |
| 2049 | list_add_tail(&urbq->urb_more, &endp->urb_more); |
| 2050 | urbq->urb = urb; |
| 2051 | } |
| 2052 | } |
| 2053 | return 0; |
| 2054 | } |
| 2055 | |
| 2056 | static int create_endpoint_and_queue_control(struct u132 *u132, |
| 2057 | struct urb *urb, |
| 2058 | struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, |
| 2059 | gfp_t mem_flags) |
| 2060 | { |
| 2061 | struct u132_ring *ring; |
| 2062 | unsigned long irqs; |
| 2063 | int rc; |
| 2064 | u8 endp_number; |
| 2065 | struct u132_endp *endp = kmalloc(sizeof(struct u132_endp), mem_flags); |
| 2066 | |
| 2067 | if (!endp) |
| 2068 | return -ENOMEM; |
| 2069 | |
| 2070 | spin_lock_init(&endp->queue_lock.slock); |
| 2071 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
| 2072 | rc = usb_hcd_link_urb_to_ep(u132_to_hcd(u132), urb); |
| 2073 | if (rc) { |
| 2074 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2075 | kfree(endp); |
| 2076 | return rc; |
| 2077 | } |
| 2078 | |
| 2079 | endp_number = ++u132->num_endpoints; |
| 2080 | urb->ep->hcpriv = u132->endp[endp_number - 1] = endp; |
| 2081 | INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler); |
| 2082 | INIT_LIST_HEAD(&endp->urb_more); |
| 2083 | ring = endp->ring = &u132->ring[0]; |
| 2084 | if (ring->curr_endp) { |
| 2085 | list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); |
| 2086 | } else { |
| 2087 | INIT_LIST_HEAD(&endp->endp_ring); |
| 2088 | ring->curr_endp = endp; |
| 2089 | } |
| 2090 | ring->length += 1; |
| 2091 | endp->dequeueing = 0; |
| 2092 | endp->edset_flush = 0; |
| 2093 | endp->active = 0; |
| 2094 | endp->delayed = 0; |
| 2095 | endp->endp_number = endp_number; |
| 2096 | endp->u132 = u132; |
| 2097 | endp->hep = urb->ep; |
| 2098 | u132_endp_init_kref(u132, endp); |
| 2099 | u132_endp_get_kref(u132, endp); |
| 2100 | if (usb_addr == 0) { |
| 2101 | u8 address = u132->addr[usb_addr].address; |
| 2102 | struct u132_udev *udev = &u132->udev[address]; |
| 2103 | endp->udev_number = address; |
| 2104 | endp->usb_addr = usb_addr; |
| 2105 | endp->usb_endp = usb_endp; |
| 2106 | endp->input = 1; |
| 2107 | endp->output = 1; |
| 2108 | endp->pipetype = usb_pipetype(urb->pipe); |
| 2109 | u132_udev_init_kref(u132, udev); |
| 2110 | u132_udev_get_kref(u132, udev); |
| 2111 | udev->endp_number_in[usb_endp] = endp_number; |
| 2112 | udev->endp_number_out[usb_endp] = endp_number; |
| 2113 | urb->hcpriv = u132; |
| 2114 | endp->queue_size = 1; |
| 2115 | endp->queue_last = 0; |
| 2116 | endp->queue_next = 0; |
| 2117 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2118 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2119 | u132_endp_queue_work(u132, endp, 0); |
| 2120 | return 0; |
| 2121 | } else { /*(usb_addr > 0) */ |
| 2122 | u8 address = u132->addr[usb_addr].address; |
| 2123 | struct u132_udev *udev = &u132->udev[address]; |
| 2124 | endp->udev_number = address; |
| 2125 | endp->usb_addr = usb_addr; |
| 2126 | endp->usb_endp = usb_endp; |
| 2127 | endp->input = 1; |
| 2128 | endp->output = 1; |
| 2129 | endp->pipetype = usb_pipetype(urb->pipe); |
| 2130 | u132_udev_get_kref(u132, udev); |
| 2131 | udev->enumeration = 2; |
| 2132 | udev->endp_number_in[usb_endp] = endp_number; |
| 2133 | udev->endp_number_out[usb_endp] = endp_number; |
| 2134 | urb->hcpriv = u132; |
| 2135 | endp->queue_size = 1; |
| 2136 | endp->queue_last = 0; |
| 2137 | endp->queue_next = 0; |
| 2138 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; |
| 2139 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2140 | u132_endp_queue_work(u132, endp, 0); |
| 2141 | return 0; |
| 2142 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2143 | } |
| 2144 | |
| 2145 | static int queue_control_on_old_endpoint(struct u132 *u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2146 | struct urb *urb, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2147 | struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, |
| 2148 | u8 usb_endp) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2149 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2150 | if (usb_addr == 0) { |
| 2151 | if (usb_pipein(urb->pipe)) { |
| 2152 | urb->hcpriv = u132; |
| 2153 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2154 | endp->urb_list[ENDP_QUEUE_MASK & |
| 2155 | endp->queue_last++] = urb; |
| 2156 | } else { |
| 2157 | struct u132_urbq *urbq = |
| 2158 | kmalloc(sizeof(struct u132_urbq), |
| 2159 | GFP_ATOMIC); |
| 2160 | if (urbq == NULL) { |
| 2161 | endp->queue_size -= 1; |
| 2162 | return -ENOMEM; |
| 2163 | } else { |
| 2164 | list_add_tail(&urbq->urb_more, |
| 2165 | &endp->urb_more); |
| 2166 | urbq->urb = urb; |
| 2167 | } |
| 2168 | } |
| 2169 | return 0; |
| 2170 | } else { /* usb_pipeout(urb->pipe) */ |
| 2171 | struct u132_addr *addr = &u132->addr[usb_dev->devnum]; |
| 2172 | int I = MAX_U132_UDEVS; |
| 2173 | int i = 0; |
| 2174 | while (--I > 0) { |
| 2175 | struct u132_udev *udev = &u132->udev[++i]; |
| 2176 | if (udev->usb_device) { |
| 2177 | continue; |
| 2178 | } else { |
| 2179 | udev->enumeration = 1; |
| 2180 | u132->addr[0].address = i; |
| 2181 | endp->udev_number = i; |
| 2182 | udev->udev_number = i; |
| 2183 | udev->usb_addr = usb_dev->devnum; |
| 2184 | u132_udev_init_kref(u132, udev); |
| 2185 | udev->endp_number_in[usb_endp] = |
| 2186 | endp->endp_number; |
| 2187 | u132_udev_get_kref(u132, udev); |
| 2188 | udev->endp_number_out[usb_endp] = |
| 2189 | endp->endp_number; |
| 2190 | udev->usb_device = usb_dev; |
| 2191 | ((u8 *) (urb->setup_packet))[2] = |
| 2192 | addr->address = i; |
| 2193 | u132_udev_get_kref(u132, udev); |
| 2194 | break; |
| 2195 | } |
| 2196 | } |
| 2197 | if (I == 0) { |
| 2198 | dev_err(&u132->platform_dev->dev, "run out of d" |
| 2199 | "evice space\n"); |
| 2200 | return -EINVAL; |
| 2201 | } |
| 2202 | urb->hcpriv = u132; |
| 2203 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2204 | endp->urb_list[ENDP_QUEUE_MASK & |
| 2205 | endp->queue_last++] = urb; |
| 2206 | } else { |
| 2207 | struct u132_urbq *urbq = |
| 2208 | kmalloc(sizeof(struct u132_urbq), |
| 2209 | GFP_ATOMIC); |
| 2210 | if (urbq == NULL) { |
| 2211 | endp->queue_size -= 1; |
| 2212 | return -ENOMEM; |
| 2213 | } else { |
| 2214 | list_add_tail(&urbq->urb_more, |
| 2215 | &endp->urb_more); |
| 2216 | urbq->urb = urb; |
| 2217 | } |
| 2218 | } |
| 2219 | return 0; |
| 2220 | } |
| 2221 | } else { /*(usb_addr > 0) */ |
| 2222 | u8 address = u132->addr[usb_addr].address; |
| 2223 | struct u132_udev *udev = &u132->udev[address]; |
| 2224 | urb->hcpriv = u132; |
| 2225 | if (udev->enumeration != 2) |
| 2226 | udev->enumeration = 2; |
| 2227 | if (endp->queue_size++ < ENDP_QUEUE_SIZE) { |
| 2228 | endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = |
| 2229 | urb; |
| 2230 | } else { |
| 2231 | struct u132_urbq *urbq = |
| 2232 | kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); |
| 2233 | if (urbq == NULL) { |
| 2234 | endp->queue_size -= 1; |
| 2235 | return -ENOMEM; |
| 2236 | } else { |
| 2237 | list_add_tail(&urbq->urb_more, &endp->urb_more); |
| 2238 | urbq->urb = urb; |
| 2239 | } |
| 2240 | } |
| 2241 | return 0; |
| 2242 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2243 | } |
| 2244 | |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2245 | static int u132_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, |
| 2246 | gfp_t mem_flags) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2247 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2248 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2249 | if (irqs_disabled()) { |
| 2250 | if (__GFP_WAIT & mem_flags) { |
| 2251 | printk(KERN_ERR "invalid context for function that migh" |
| 2252 | "t sleep\n"); |
| 2253 | return -EINVAL; |
| 2254 | } |
| 2255 | } |
| 2256 | if (u132->going > 1) { |
| 2257 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2258 | , u132->going); |
| 2259 | return -ENODEV; |
| 2260 | } else if (u132->going > 0) { |
Alan Stern | eb23105 | 2007-08-21 15:40:36 -0400 | [diff] [blame] | 2261 | dev_err(&u132->platform_dev->dev, "device is being removed " |
| 2262 | "urb=%p\n", urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2263 | return -ESHUTDOWN; |
| 2264 | } else { |
| 2265 | u8 usb_addr = usb_pipedevice(urb->pipe); |
| 2266 | u8 usb_endp = usb_pipeendpoint(urb->pipe); |
| 2267 | struct usb_device *usb_dev = urb->dev; |
| 2268 | if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { |
| 2269 | u8 address = u132->addr[usb_addr].address; |
| 2270 | struct u132_udev *udev = &u132->udev[address]; |
| 2271 | struct u132_endp *endp = urb->ep->hcpriv; |
| 2272 | urb->actual_length = 0; |
| 2273 | if (endp) { |
| 2274 | unsigned long irqs; |
| 2275 | int retval; |
| 2276 | spin_lock_irqsave(&endp->queue_lock.slock, |
| 2277 | irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2278 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| 2279 | if (retval == 0) { |
| 2280 | retval = queue_int_on_old_endpoint( |
| 2281 | u132, udev, urb, |
| 2282 | usb_dev, endp, |
| 2283 | usb_addr, usb_endp, |
| 2284 | address); |
| 2285 | if (retval) |
| 2286 | usb_hcd_unlink_urb_from_ep( |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2287 | hcd, urb); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2288 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2289 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2290 | irqs); |
| 2291 | if (retval) { |
| 2292 | return retval; |
| 2293 | } else { |
| 2294 | u132_endp_queue_work(u132, endp, |
| 2295 | msecs_to_jiffies(urb->interval)) |
| 2296 | ; |
| 2297 | return 0; |
| 2298 | } |
| 2299 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| 2300 | return -EINVAL; |
| 2301 | } else { /*(endp == NULL) */ |
| 2302 | return create_endpoint_and_queue_int(u132, udev, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2303 | urb, usb_dev, usb_addr, |
| 2304 | usb_endp, address, mem_flags); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2305 | } |
| 2306 | } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { |
| 2307 | dev_err(&u132->platform_dev->dev, "the hardware does no" |
| 2308 | "t support PIPE_ISOCHRONOUS\n"); |
| 2309 | return -EINVAL; |
| 2310 | } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { |
| 2311 | u8 address = u132->addr[usb_addr].address; |
| 2312 | struct u132_udev *udev = &u132->udev[address]; |
| 2313 | struct u132_endp *endp = urb->ep->hcpriv; |
| 2314 | urb->actual_length = 0; |
| 2315 | if (endp) { |
| 2316 | unsigned long irqs; |
| 2317 | int retval; |
| 2318 | spin_lock_irqsave(&endp->queue_lock.slock, |
| 2319 | irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2320 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| 2321 | if (retval == 0) { |
| 2322 | retval = queue_bulk_on_old_endpoint( |
| 2323 | u132, udev, urb, |
| 2324 | usb_dev, endp, |
| 2325 | usb_addr, usb_endp, |
| 2326 | address); |
| 2327 | if (retval) |
| 2328 | usb_hcd_unlink_urb_from_ep( |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2329 | hcd, urb); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2330 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2331 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2332 | irqs); |
| 2333 | if (retval) { |
| 2334 | return retval; |
| 2335 | } else { |
| 2336 | u132_endp_queue_work(u132, endp, 0); |
| 2337 | return 0; |
| 2338 | } |
| 2339 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| 2340 | return -EINVAL; |
| 2341 | } else |
| 2342 | return create_endpoint_and_queue_bulk(u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2343 | udev, urb, usb_dev, usb_addr, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2344 | usb_endp, address, mem_flags); |
| 2345 | } else { |
| 2346 | struct u132_endp *endp = urb->ep->hcpriv; |
| 2347 | u16 urb_size = 8; |
| 2348 | u8 *b = urb->setup_packet; |
| 2349 | int i = 0; |
| 2350 | char data[30 * 3 + 4]; |
| 2351 | char *d = data; |
| 2352 | int m = (sizeof(data) - 1) / 3; |
| 2353 | int l = 0; |
| 2354 | data[0] = 0; |
| 2355 | while (urb_size-- > 0) { |
| 2356 | if (i > m) { |
| 2357 | } else if (i++ < m) { |
| 2358 | int w = sprintf(d, " %02X", *b++); |
| 2359 | d += w; |
| 2360 | l += w; |
| 2361 | } else |
| 2362 | d += sprintf(d, " .."); |
| 2363 | } |
| 2364 | if (endp) { |
| 2365 | unsigned long irqs; |
| 2366 | int retval; |
| 2367 | spin_lock_irqsave(&endp->queue_lock.slock, |
| 2368 | irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2369 | retval = usb_hcd_link_urb_to_ep(hcd, urb); |
| 2370 | if (retval == 0) { |
| 2371 | retval = queue_control_on_old_endpoint( |
| 2372 | u132, urb, usb_dev, |
| 2373 | endp, usb_addr, |
| 2374 | usb_endp); |
| 2375 | if (retval) |
| 2376 | usb_hcd_unlink_urb_from_ep( |
| 2377 | hcd, urb); |
| 2378 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2379 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2380 | irqs); |
| 2381 | if (retval) { |
| 2382 | return retval; |
| 2383 | } else { |
| 2384 | u132_endp_queue_work(u132, endp, 0); |
| 2385 | return 0; |
| 2386 | } |
| 2387 | } else if (u132->num_endpoints == MAX_U132_ENDPS) { |
| 2388 | return -EINVAL; |
| 2389 | } else |
| 2390 | return create_endpoint_and_queue_control(u132, |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2391 | urb, usb_dev, usb_addr, usb_endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2392 | mem_flags); |
| 2393 | } |
| 2394 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2395 | } |
| 2396 | |
| 2397 | static int dequeue_from_overflow_chain(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2398 | struct u132_endp *endp, struct urb *urb) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2399 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2400 | struct list_head *scan; |
| 2401 | struct list_head *head = &endp->urb_more; |
| 2402 | list_for_each(scan, head) { |
| 2403 | struct u132_urbq *urbq = list_entry(scan, struct u132_urbq, |
| 2404 | urb_more); |
| 2405 | if (urbq->urb == urb) { |
| 2406 | struct usb_hcd *hcd = u132_to_hcd(u132); |
| 2407 | list_del(scan); |
| 2408 | endp->queue_size -= 1; |
| 2409 | urb->error_count = 0; |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 2410 | usb_hcd_giveback_urb(hcd, urb, 0); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2411 | return 0; |
| 2412 | } else |
| 2413 | continue; |
| 2414 | } |
| 2415 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" |
| 2416 | "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" |
| 2417 | "\n", urb, endp->endp_number, endp, endp->ring->number, |
| 2418 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
| 2419 | endp->usb_endp, endp->usb_addr, endp->queue_size, |
| 2420 | endp->queue_next, endp->queue_last); |
| 2421 | return -EINVAL; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2422 | } |
| 2423 | |
| 2424 | 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] | 2425 | struct urb *urb, int status) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2426 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2427 | unsigned long irqs; |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2428 | int rc; |
| 2429 | |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2430 | spin_lock_irqsave(&endp->queue_lock.slock, irqs); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2431 | rc = usb_hcd_check_unlink_urb(u132_to_hcd(u132), urb, status); |
| 2432 | if (rc) { |
| 2433 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2434 | return rc; |
| 2435 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2436 | if (endp->queue_size == 0) { |
| 2437 | dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" |
| 2438 | "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, |
| 2439 | endp->endp_number, endp, endp->ring->number, |
| 2440 | endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', |
| 2441 | endp->usb_endp, endp->usb_addr); |
| 2442 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2443 | return -EINVAL; |
| 2444 | } |
| 2445 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { |
| 2446 | if (endp->active) { |
| 2447 | endp->dequeueing = 1; |
| 2448 | endp->edset_flush = 1; |
| 2449 | u132_endp_queue_work(u132, endp, 0); |
| 2450 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2451 | return 0; |
| 2452 | } else { |
| 2453 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 2454 | u132_hcd_abandon_urb(u132, endp, urb, status); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2455 | return 0; |
| 2456 | } |
| 2457 | } else { |
| 2458 | u16 queue_list = 0; |
| 2459 | u16 queue_size = endp->queue_size; |
| 2460 | u16 queue_scan = endp->queue_next; |
| 2461 | struct urb **urb_slot = NULL; |
| 2462 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
| 2463 | if (urb == endp->urb_list[ENDP_QUEUE_MASK & |
| 2464 | ++queue_scan]) { |
| 2465 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
| 2466 | queue_scan]; |
| 2467 | break; |
| 2468 | } else |
| 2469 | continue; |
| 2470 | } |
| 2471 | while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { |
| 2472 | *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & |
| 2473 | ++queue_scan]; |
| 2474 | urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & |
| 2475 | queue_scan]; |
| 2476 | } |
| 2477 | if (urb_slot) { |
| 2478 | struct usb_hcd *hcd = u132_to_hcd(u132); |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2479 | |
| 2480 | usb_hcd_unlink_urb_from_ep(hcd, urb); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2481 | endp->queue_size -= 1; |
| 2482 | if (list_empty(&endp->urb_more)) { |
| 2483 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2484 | irqs); |
| 2485 | } else { |
| 2486 | struct list_head *next = endp->urb_more.next; |
| 2487 | struct u132_urbq *urbq = list_entry(next, |
| 2488 | struct u132_urbq, urb_more); |
| 2489 | list_del(next); |
| 2490 | *urb_slot = urbq->urb; |
| 2491 | spin_unlock_irqrestore(&endp->queue_lock.slock, |
| 2492 | irqs); |
| 2493 | kfree(urbq); |
| 2494 | } urb->error_count = 0; |
Alan Stern | 4a00027 | 2007-08-24 15:42:24 -0400 | [diff] [blame] | 2495 | usb_hcd_giveback_urb(hcd, urb, status); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2496 | return 0; |
| 2497 | } else if (list_empty(&endp->urb_more)) { |
| 2498 | dev_err(&u132->platform_dev->dev, "urb=%p not found in " |
| 2499 | "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" |
| 2500 | "=%d size=%d next=%04X last=%04X\n", urb, |
| 2501 | endp->endp_number, endp, endp->ring->number, |
| 2502 | endp->input ? 'I' : ' ', |
| 2503 | endp->output ? 'O' : ' ', endp->usb_endp, |
| 2504 | endp->usb_addr, endp->queue_size, |
| 2505 | endp->queue_next, endp->queue_last); |
| 2506 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2507 | return -EINVAL; |
| 2508 | } else { |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2509 | int retval; |
| 2510 | |
| 2511 | usb_hcd_unlink_urb_from_ep(u132_to_hcd(u132), urb); |
| 2512 | retval = dequeue_from_overflow_chain(u132, endp, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2513 | urb); |
| 2514 | spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); |
| 2515 | return retval; |
| 2516 | } |
| 2517 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2518 | } |
| 2519 | |
Alan Stern | e9df41c | 2007-08-08 11:48:02 -0400 | [diff] [blame] | 2520 | 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] | 2521 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2522 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2523 | if (u132->going > 2) { |
| 2524 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2525 | , u132->going); |
| 2526 | return -ENODEV; |
| 2527 | } else { |
| 2528 | u8 usb_addr = usb_pipedevice(urb->pipe); |
| 2529 | u8 usb_endp = usb_pipeendpoint(urb->pipe); |
| 2530 | u8 address = u132->addr[usb_addr].address; |
| 2531 | struct u132_udev *udev = &u132->udev[address]; |
| 2532 | if (usb_pipein(urb->pipe)) { |
| 2533 | u8 endp_number = udev->endp_number_in[usb_endp]; |
| 2534 | struct u132_endp *endp = u132->endp[endp_number - 1]; |
| 2535 | return u132_endp_urb_dequeue(u132, endp, urb, status); |
| 2536 | } else { |
| 2537 | u8 endp_number = udev->endp_number_out[usb_endp]; |
| 2538 | struct u132_endp *endp = u132->endp[endp_number - 1]; |
| 2539 | return u132_endp_urb_dequeue(u132, endp, urb, status); |
| 2540 | } |
| 2541 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2542 | } |
| 2543 | |
| 2544 | static void u132_endpoint_disable(struct usb_hcd *hcd, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2545 | struct usb_host_endpoint *hep) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2546 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2547 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2548 | if (u132->going > 2) { |
| 2549 | dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" |
| 2550 | ") has been removed %d\n", u132, hcd, hep, |
| 2551 | u132->going); |
| 2552 | } else { |
| 2553 | struct u132_endp *endp = hep->hcpriv; |
| 2554 | if (endp) |
| 2555 | u132_endp_put_kref(u132, endp); |
| 2556 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2557 | } |
| 2558 | |
| 2559 | static int u132_get_frame(struct usb_hcd *hcd) |
| 2560 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2561 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2562 | if (u132->going > 1) { |
| 2563 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2564 | , u132->going); |
| 2565 | return -ENODEV; |
| 2566 | } else if (u132->going > 0) { |
| 2567 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2568 | return -ESHUTDOWN; |
| 2569 | } else { |
| 2570 | int frame = 0; |
| 2571 | dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); |
| 2572 | msleep(100); |
| 2573 | return frame; |
| 2574 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2575 | } |
| 2576 | |
| 2577 | static int u132_roothub_descriptor(struct u132 *u132, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2578 | struct usb_hub_descriptor *desc) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2579 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2580 | int retval; |
| 2581 | u16 temp; |
| 2582 | u32 rh_a = -1; |
| 2583 | u32 rh_b = -1; |
| 2584 | retval = u132_read_pcimem(u132, roothub.a, &rh_a); |
| 2585 | if (retval) |
| 2586 | return retval; |
| 2587 | desc->bDescriptorType = 0x29; |
| 2588 | desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; |
| 2589 | desc->bHubContrCurrent = 0; |
| 2590 | desc->bNbrPorts = u132->num_ports; |
| 2591 | temp = 1 + (u132->num_ports / 8); |
| 2592 | desc->bDescLength = 7 + 2 * temp; |
| 2593 | temp = 0; |
| 2594 | if (rh_a & RH_A_NPS) |
| 2595 | temp |= 0x0002; |
| 2596 | if (rh_a & RH_A_PSM) |
| 2597 | temp |= 0x0001; |
| 2598 | if (rh_a & RH_A_NOCP) |
| 2599 | temp |= 0x0010; |
| 2600 | else if (rh_a & RH_A_OCPM) |
| 2601 | temp |= 0x0008; |
| 2602 | desc->wHubCharacteristics = cpu_to_le16(temp); |
| 2603 | retval = u132_read_pcimem(u132, roothub.b, &rh_b); |
| 2604 | if (retval) |
| 2605 | return retval; |
John Youn | dbe79bb | 2001-09-17 00:00:00 -0700 | [diff] [blame] | 2606 | memset(desc->u.hs.DeviceRemovable, 0xff, |
| 2607 | sizeof(desc->u.hs.DeviceRemovable)); |
| 2608 | desc->u.hs.DeviceRemovable[0] = rh_b & RH_B_DR; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2609 | if (u132->num_ports > 7) { |
John Youn | dbe79bb | 2001-09-17 00:00:00 -0700 | [diff] [blame] | 2610 | desc->u.hs.DeviceRemovable[1] = (rh_b & RH_B_DR) >> 8; |
| 2611 | desc->u.hs.DeviceRemovable[2] = 0xff; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2612 | } else |
John Youn | dbe79bb | 2001-09-17 00:00:00 -0700 | [diff] [blame] | 2613 | desc->u.hs.DeviceRemovable[1] = 0xff; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2614 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2615 | } |
| 2616 | |
| 2617 | static int u132_roothub_status(struct u132 *u132, __le32 *desc) |
| 2618 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2619 | u32 rh_status = -1; |
| 2620 | int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); |
| 2621 | *desc = cpu_to_le32(rh_status); |
| 2622 | return ret_status; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2623 | } |
| 2624 | |
| 2625 | static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) |
| 2626 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2627 | if (wIndex == 0 || wIndex > u132->num_ports) { |
| 2628 | return -EINVAL; |
| 2629 | } else { |
| 2630 | int port = wIndex - 1; |
| 2631 | u32 rh_portstatus = -1; |
| 2632 | int ret_portstatus = u132_read_pcimem(u132, |
| 2633 | roothub.portstatus[port], &rh_portstatus); |
| 2634 | *desc = cpu_to_le32(rh_portstatus); |
| 2635 | if (*(u16 *) (desc + 2)) { |
| 2636 | dev_info(&u132->platform_dev->dev, "Port %d Status Chan" |
| 2637 | "ge = %08X\n", port, *desc); |
| 2638 | } |
| 2639 | return ret_portstatus; |
| 2640 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2641 | } |
| 2642 | |
| 2643 | |
| 2644 | /* this timer value might be vendor-specific ... */ |
| 2645 | #define PORT_RESET_HW_MSEC 10 |
| 2646 | #define PORT_RESET_MSEC 10 |
| 2647 | /* wrap-aware logic morphed from <linux/jiffies.h> */ |
| 2648 | #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) |
| 2649 | static int u132_roothub_portreset(struct u132 *u132, int port_index) |
| 2650 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2651 | int retval; |
| 2652 | u32 fmnumber; |
| 2653 | u16 now; |
| 2654 | u16 reset_done; |
| 2655 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
| 2656 | if (retval) |
| 2657 | return retval; |
| 2658 | now = fmnumber; |
| 2659 | reset_done = now + PORT_RESET_MSEC; |
| 2660 | do { |
| 2661 | u32 portstat; |
| 2662 | do { |
| 2663 | retval = u132_read_pcimem(u132, |
| 2664 | roothub.portstatus[port_index], &portstat); |
| 2665 | if (retval) |
| 2666 | return retval; |
| 2667 | if (RH_PS_PRS & portstat) |
| 2668 | continue; |
| 2669 | else |
| 2670 | break; |
| 2671 | } while (tick_before(now, reset_done)); |
| 2672 | if (RH_PS_PRS & portstat) |
| 2673 | return -ENODEV; |
| 2674 | if (RH_PS_CCS & portstat) { |
| 2675 | if (RH_PS_PRSC & portstat) { |
| 2676 | retval = u132_write_pcimem(u132, |
| 2677 | roothub.portstatus[port_index], |
| 2678 | RH_PS_PRSC); |
| 2679 | if (retval) |
| 2680 | return retval; |
| 2681 | } |
| 2682 | } else |
| 2683 | break; /* start the next reset, |
| 2684 | sleep till it's probably done */ |
| 2685 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], |
| 2686 | RH_PS_PRS); |
| 2687 | if (retval) |
| 2688 | return retval; |
| 2689 | msleep(PORT_RESET_HW_MSEC); |
| 2690 | retval = u132_read_pcimem(u132, fmnumber, &fmnumber); |
| 2691 | if (retval) |
| 2692 | return retval; |
| 2693 | now = fmnumber; |
| 2694 | } while (tick_before(now, reset_done)); |
| 2695 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2696 | } |
| 2697 | |
| 2698 | static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2699 | u16 wIndex) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2700 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2701 | if (wIndex == 0 || wIndex > u132->num_ports) { |
| 2702 | return -EINVAL; |
| 2703 | } else { |
| 2704 | int retval; |
| 2705 | int port_index = wIndex - 1; |
| 2706 | struct u132_port *port = &u132->port[port_index]; |
| 2707 | port->Status &= ~(1 << wValue); |
| 2708 | switch (wValue) { |
| 2709 | case USB_PORT_FEAT_SUSPEND: |
| 2710 | retval = u132_write_pcimem(u132, |
| 2711 | roothub.portstatus[port_index], RH_PS_PSS); |
| 2712 | if (retval) |
| 2713 | return retval; |
| 2714 | return 0; |
| 2715 | case USB_PORT_FEAT_POWER: |
| 2716 | retval = u132_write_pcimem(u132, |
| 2717 | roothub.portstatus[port_index], RH_PS_PPS); |
| 2718 | if (retval) |
| 2719 | return retval; |
| 2720 | return 0; |
| 2721 | case USB_PORT_FEAT_RESET: |
| 2722 | retval = u132_roothub_portreset(u132, port_index); |
| 2723 | if (retval) |
| 2724 | return retval; |
| 2725 | return 0; |
| 2726 | default: |
| 2727 | return -EPIPE; |
| 2728 | } |
| 2729 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2730 | } |
| 2731 | |
| 2732 | static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2733 | u16 wIndex) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2734 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2735 | if (wIndex == 0 || wIndex > u132->num_ports) { |
| 2736 | return -EINVAL; |
| 2737 | } else { |
| 2738 | int port_index = wIndex - 1; |
| 2739 | u32 temp; |
| 2740 | int retval; |
| 2741 | struct u132_port *port = &u132->port[port_index]; |
| 2742 | port->Status &= ~(1 << wValue); |
| 2743 | switch (wValue) { |
| 2744 | case USB_PORT_FEAT_ENABLE: |
| 2745 | temp = RH_PS_CCS; |
| 2746 | break; |
| 2747 | case USB_PORT_FEAT_C_ENABLE: |
| 2748 | temp = RH_PS_PESC; |
| 2749 | break; |
| 2750 | case USB_PORT_FEAT_SUSPEND: |
| 2751 | temp = RH_PS_POCI; |
| 2752 | if ((u132->hc_control & OHCI_CTRL_HCFS) |
| 2753 | != OHCI_USB_OPER) { |
| 2754 | dev_err(&u132->platform_dev->dev, "TODO resume_" |
| 2755 | "root_hub\n"); |
| 2756 | } |
| 2757 | break; |
| 2758 | case USB_PORT_FEAT_C_SUSPEND: |
| 2759 | temp = RH_PS_PSSC; |
| 2760 | break; |
| 2761 | case USB_PORT_FEAT_POWER: |
| 2762 | temp = RH_PS_LSDA; |
| 2763 | break; |
| 2764 | case USB_PORT_FEAT_C_CONNECTION: |
| 2765 | temp = RH_PS_CSC; |
| 2766 | break; |
| 2767 | case USB_PORT_FEAT_C_OVER_CURRENT: |
| 2768 | temp = RH_PS_OCIC; |
| 2769 | break; |
| 2770 | case USB_PORT_FEAT_C_RESET: |
| 2771 | temp = RH_PS_PRSC; |
| 2772 | break; |
| 2773 | default: |
| 2774 | return -EPIPE; |
| 2775 | } |
| 2776 | retval = u132_write_pcimem(u132, roothub.portstatus[port_index], |
| 2777 | temp); |
| 2778 | if (retval) |
| 2779 | return retval; |
| 2780 | return 0; |
| 2781 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2782 | } |
| 2783 | |
| 2784 | |
| 2785 | /* the virtual root hub timer IRQ checks for hub status*/ |
| 2786 | static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) |
| 2787 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2788 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2789 | if (u132->going > 1) { |
| 2790 | dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" |
| 2791 | "ed %d\n", hcd, u132->going); |
| 2792 | return -ENODEV; |
| 2793 | } else if (u132->going > 0) { |
| 2794 | dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" |
| 2795 | "ed\n", hcd); |
| 2796 | return -ESHUTDOWN; |
| 2797 | } else { |
| 2798 | int i, changed = 0, length = 1; |
| 2799 | if (u132->flags & OHCI_QUIRK_AMD756) { |
| 2800 | if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { |
| 2801 | dev_err(&u132->platform_dev->dev, "bogus NDP, r" |
| 2802 | "ereads as NDP=%d\n", |
| 2803 | u132->hc_roothub_a & RH_A_NDP); |
| 2804 | goto done; |
| 2805 | } |
| 2806 | } |
| 2807 | if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) |
| 2808 | buf[0] = changed = 1; |
| 2809 | else |
| 2810 | buf[0] = 0; |
| 2811 | if (u132->num_ports > 7) { |
| 2812 | buf[1] = 0; |
| 2813 | length++; |
| 2814 | } |
| 2815 | for (i = 0; i < u132->num_ports; i++) { |
| 2816 | if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | |
| 2817 | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | |
| 2818 | RH_PS_PRSC)) { |
| 2819 | changed = 1; |
| 2820 | if (i < 7) |
| 2821 | buf[0] |= 1 << (i + 1); |
| 2822 | else |
| 2823 | buf[1] |= 1 << (i - 7); |
| 2824 | continue; |
| 2825 | } |
| 2826 | if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) |
| 2827 | continue; |
| 2828 | |
| 2829 | if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) |
| 2830 | continue; |
| 2831 | } |
| 2832 | done: |
| 2833 | return changed ? length : 0; |
| 2834 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2835 | } |
| 2836 | |
| 2837 | 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] | 2838 | u16 wIndex, char *buf, u16 wLength) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2839 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2840 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2841 | if (u132->going > 1) { |
| 2842 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2843 | , u132->going); |
| 2844 | return -ENODEV; |
| 2845 | } else if (u132->going > 0) { |
| 2846 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2847 | return -ESHUTDOWN; |
| 2848 | } else { |
| 2849 | int retval = 0; |
| 2850 | mutex_lock(&u132->sw_lock); |
| 2851 | switch (typeReq) { |
| 2852 | case ClearHubFeature: |
| 2853 | switch (wValue) { |
| 2854 | case C_HUB_OVER_CURRENT: |
| 2855 | case C_HUB_LOCAL_POWER: |
| 2856 | break; |
| 2857 | default: |
| 2858 | goto stall; |
| 2859 | } |
| 2860 | break; |
| 2861 | case SetHubFeature: |
| 2862 | switch (wValue) { |
| 2863 | case C_HUB_OVER_CURRENT: |
| 2864 | case C_HUB_LOCAL_POWER: |
| 2865 | break; |
| 2866 | default: |
| 2867 | goto stall; |
| 2868 | } |
| 2869 | break; |
| 2870 | case ClearPortFeature:{ |
| 2871 | retval = u132_roothub_clearportfeature(u132, |
| 2872 | wValue, wIndex); |
| 2873 | if (retval) |
| 2874 | goto error; |
| 2875 | break; |
| 2876 | } |
| 2877 | case GetHubDescriptor:{ |
| 2878 | retval = u132_roothub_descriptor(u132, |
| 2879 | (struct usb_hub_descriptor *)buf); |
| 2880 | if (retval) |
| 2881 | goto error; |
| 2882 | break; |
| 2883 | } |
| 2884 | case GetHubStatus:{ |
| 2885 | retval = u132_roothub_status(u132, |
| 2886 | (__le32 *) buf); |
| 2887 | if (retval) |
| 2888 | goto error; |
| 2889 | break; |
| 2890 | } |
| 2891 | case GetPortStatus:{ |
| 2892 | retval = u132_roothub_portstatus(u132, |
| 2893 | (__le32 *) buf, wIndex); |
| 2894 | if (retval) |
| 2895 | goto error; |
| 2896 | break; |
| 2897 | } |
| 2898 | case SetPortFeature:{ |
| 2899 | retval = u132_roothub_setportfeature(u132, |
| 2900 | wValue, wIndex); |
| 2901 | if (retval) |
| 2902 | goto error; |
| 2903 | break; |
| 2904 | } |
| 2905 | default: |
| 2906 | goto stall; |
| 2907 | error: |
| 2908 | u132_disable(u132); |
| 2909 | u132->going = 1; |
| 2910 | break; |
| 2911 | stall: |
| 2912 | retval = -EPIPE; |
| 2913 | break; |
| 2914 | } |
| 2915 | mutex_unlock(&u132->sw_lock); |
| 2916 | return retval; |
| 2917 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2918 | } |
| 2919 | |
| 2920 | static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) |
| 2921 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2922 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2923 | if (u132->going > 1) { |
| 2924 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2925 | , u132->going); |
| 2926 | return -ENODEV; |
| 2927 | } else if (u132->going > 0) { |
| 2928 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2929 | return -ESHUTDOWN; |
| 2930 | } else |
| 2931 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2932 | } |
| 2933 | |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2934 | |
| 2935 | #ifdef CONFIG_PM |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2936 | static int u132_bus_suspend(struct usb_hcd *hcd) |
| 2937 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2938 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2939 | if (u132->going > 1) { |
| 2940 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2941 | , u132->going); |
| 2942 | return -ENODEV; |
| 2943 | } else if (u132->going > 0) { |
| 2944 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2945 | return -ESHUTDOWN; |
| 2946 | } else |
| 2947 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2948 | } |
| 2949 | |
| 2950 | static int u132_bus_resume(struct usb_hcd *hcd) |
| 2951 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2952 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2953 | if (u132->going > 1) { |
| 2954 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 2955 | , u132->going); |
| 2956 | return -ENODEV; |
| 2957 | } else if (u132->going > 0) { |
| 2958 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 2959 | return -ESHUTDOWN; |
| 2960 | } else |
| 2961 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2962 | } |
| 2963 | |
| 2964 | #else |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2965 | #define u132_bus_suspend NULL |
| 2966 | #define u132_bus_resume NULL |
| 2967 | #endif |
| 2968 | static struct hc_driver u132_hc_driver = { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2969 | .description = hcd_name, |
| 2970 | .hcd_priv_size = sizeof(struct u132), |
| 2971 | .irq = NULL, |
| 2972 | .flags = HCD_USB11 | HCD_MEMORY, |
| 2973 | .reset = u132_hcd_reset, |
| 2974 | .start = u132_hcd_start, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2975 | .stop = u132_hcd_stop, |
| 2976 | .urb_enqueue = u132_urb_enqueue, |
| 2977 | .urb_dequeue = u132_urb_dequeue, |
| 2978 | .endpoint_disable = u132_endpoint_disable, |
| 2979 | .get_frame_number = u132_get_frame, |
| 2980 | .hub_status_data = u132_hub_status_data, |
| 2981 | .hub_control = u132_hub_control, |
| 2982 | .bus_suspend = u132_bus_suspend, |
| 2983 | .bus_resume = u132_bus_resume, |
| 2984 | .start_port_reset = u132_start_port_reset, |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2985 | }; |
| 2986 | |
| 2987 | /* |
| 2988 | * This function may be called by the USB core whilst the "usb_all_devices_rwsem" |
| 2989 | * is held for writing, thus this module must not call usb_remove_hcd() |
| 2990 | * synchronously - but instead should immediately stop activity to the |
Matt LaPlante | 0779bf2 | 2006-11-30 05:24:39 +0100 | [diff] [blame] | 2991 | * device and asynchronously call usb_remove_hcd() |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2992 | */ |
Bill Pemberton | fb4e98a | 2012-11-19 13:26:20 -0500 | [diff] [blame] | 2993 | static int u132_remove(struct platform_device *pdev) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 2994 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 2995 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 2996 | if (hcd) { |
| 2997 | struct u132 *u132 = hcd_to_u132(hcd); |
| 2998 | if (u132->going++ > 1) { |
| 2999 | dev_err(&u132->platform_dev->dev, "already being remove" |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 3000 | "d\n"); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3001 | return -ENODEV; |
| 3002 | } else { |
| 3003 | int rings = MAX_U132_RINGS; |
| 3004 | int endps = MAX_U132_ENDPS; |
| 3005 | dev_err(&u132->platform_dev->dev, "removing device u132" |
Tony Olech | 4b87361 | 2006-12-06 13:16:22 +0000 | [diff] [blame] | 3006 | ".%d\n", u132->sequence_num); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3007 | msleep(100); |
| 3008 | mutex_lock(&u132->sw_lock); |
| 3009 | u132_monitor_cancel_work(u132); |
| 3010 | while (rings-- > 0) { |
| 3011 | struct u132_ring *ring = &u132->ring[rings]; |
| 3012 | u132_ring_cancel_work(u132, ring); |
| 3013 | } while (endps-- > 0) { |
| 3014 | struct u132_endp *endp = u132->endp[endps]; |
| 3015 | if (endp) |
| 3016 | u132_endp_cancel_work(u132, endp); |
| 3017 | } |
| 3018 | u132->going += 1; |
| 3019 | printk(KERN_INFO "removing device u132.%d\n", |
| 3020 | u132->sequence_num); |
| 3021 | mutex_unlock(&u132->sw_lock); |
| 3022 | usb_remove_hcd(hcd); |
| 3023 | u132_u132_put_kref(u132); |
| 3024 | return 0; |
| 3025 | } |
| 3026 | } else |
| 3027 | return 0; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3028 | } |
| 3029 | |
| 3030 | static void u132_initialise(struct u132 *u132, struct platform_device *pdev) |
| 3031 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3032 | int rings = MAX_U132_RINGS; |
| 3033 | int ports = MAX_U132_PORTS; |
| 3034 | int addrs = MAX_U132_ADDRS; |
| 3035 | int udevs = MAX_U132_UDEVS; |
| 3036 | int endps = MAX_U132_ENDPS; |
Jingoo Han | d4f09e2 | 2013-07-30 19:59:40 +0900 | [diff] [blame] | 3037 | u132->board = dev_get_platdata(&pdev->dev); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3038 | u132->platform_dev = pdev; |
| 3039 | u132->power = 0; |
| 3040 | u132->reset = 0; |
| 3041 | mutex_init(&u132->sw_lock); |
Daniel Walker | 50d8ca9 | 2008-03-23 00:00:02 -0700 | [diff] [blame] | 3042 | mutex_init(&u132->scheduler_lock); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3043 | while (rings-- > 0) { |
| 3044 | struct u132_ring *ring = &u132->ring[rings]; |
| 3045 | ring->u132 = u132; |
| 3046 | ring->number = rings + 1; |
| 3047 | ring->length = 0; |
| 3048 | ring->curr_endp = NULL; |
| 3049 | INIT_DELAYED_WORK(&ring->scheduler, |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3050 | u132_hcd_ring_work_scheduler); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3051 | } |
| 3052 | mutex_lock(&u132->sw_lock); |
| 3053 | INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work); |
| 3054 | while (ports-- > 0) { |
| 3055 | struct u132_port *port = &u132->port[ports]; |
| 3056 | port->u132 = u132; |
| 3057 | port->reset = 0; |
| 3058 | port->enable = 0; |
| 3059 | port->power = 0; |
| 3060 | port->Status = 0; |
| 3061 | } |
| 3062 | while (addrs-- > 0) { |
| 3063 | struct u132_addr *addr = &u132->addr[addrs]; |
| 3064 | addr->address = 0; |
| 3065 | } |
| 3066 | while (udevs-- > 0) { |
| 3067 | struct u132_udev *udev = &u132->udev[udevs]; |
| 3068 | int i = ARRAY_SIZE(udev->endp_number_in); |
| 3069 | int o = ARRAY_SIZE(udev->endp_number_out); |
| 3070 | udev->usb_device = NULL; |
| 3071 | udev->udev_number = 0; |
| 3072 | udev->usb_addr = 0; |
| 3073 | udev->portnumber = 0; |
| 3074 | while (i-- > 0) |
| 3075 | udev->endp_number_in[i] = 0; |
| 3076 | |
| 3077 | while (o-- > 0) |
| 3078 | udev->endp_number_out[o] = 0; |
| 3079 | |
| 3080 | } |
| 3081 | while (endps-- > 0) |
| 3082 | u132->endp[endps] = NULL; |
| 3083 | |
| 3084 | mutex_unlock(&u132->sw_lock); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3085 | } |
| 3086 | |
Bill Pemberton | 41ac7b3 | 2012-11-19 13:21:48 -0500 | [diff] [blame] | 3087 | static int u132_probe(struct platform_device *pdev) |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3088 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3089 | struct usb_hcd *hcd; |
| 3090 | int retval; |
| 3091 | u32 control; |
| 3092 | u32 rh_a = -1; |
| 3093 | u32 num_ports; |
| 3094 | |
| 3095 | msleep(100); |
| 3096 | if (u132_exiting > 0) |
| 3097 | return -ENODEV; |
| 3098 | |
| 3099 | retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); |
| 3100 | if (retval) |
| 3101 | return retval; |
| 3102 | retval = ftdi_read_pcimem(pdev, control, &control); |
| 3103 | if (retval) |
| 3104 | return retval; |
| 3105 | retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); |
| 3106 | if (retval) |
| 3107 | return retval; |
| 3108 | num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ |
| 3109 | if (pdev->dev.dma_mask) |
| 3110 | return -EINVAL; |
| 3111 | |
Kay Sievers | 7071a3c | 2008-05-02 06:02:41 +0200 | [diff] [blame] | 3112 | 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] | 3113 | if (!hcd) { |
| 3114 | printk(KERN_ERR "failed to create the usb hcd struct for U132\n" |
| 3115 | ); |
| 3116 | ftdi_elan_gone_away(pdev); |
| 3117 | return -ENOMEM; |
| 3118 | } else { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3119 | struct u132 *u132 = hcd_to_u132(hcd); |
Bill Pemberton | 6641445 | 2010-04-29 10:04:56 -0400 | [diff] [blame] | 3120 | retval = 0; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3121 | hcd->rsrc_start = 0; |
| 3122 | mutex_lock(&u132_module_lock); |
| 3123 | list_add_tail(&u132->u132_list, &u132_static_list); |
| 3124 | u132->sequence_num = ++u132_instances; |
| 3125 | mutex_unlock(&u132_module_lock); |
| 3126 | u132_u132_init_kref(u132); |
| 3127 | u132_initialise(u132, pdev); |
| 3128 | hcd->product_desc = "ELAN U132 Host Controller"; |
| 3129 | retval = usb_add_hcd(hcd, 0, 0); |
| 3130 | if (retval != 0) { |
| 3131 | dev_err(&u132->platform_dev->dev, "init error %d\n", |
| 3132 | retval); |
| 3133 | u132_u132_put_kref(u132); |
| 3134 | return retval; |
| 3135 | } else { |
Peter Chen | 3c9740a | 2013-11-05 10:46:02 +0800 | [diff] [blame] | 3136 | device_wakeup_enable(hcd->self.controller); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 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 |
Alan Stern | 84ebc10 | 2013-03-27 16:14:46 -0400 | [diff] [blame] | 3145 | /* |
| 3146 | * for this device there's no useful distinction between the controller |
| 3147 | * and its root hub, except that the root hub only gets direct PM calls |
| 3148 | * when CONFIG_PM_RUNTIME is enabled. |
| 3149 | */ |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3150 | static int u132_suspend(struct platform_device *pdev, pm_message_t state) |
| 3151 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3152 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 3153 | struct u132 *u132 = hcd_to_u132(hcd); |
| 3154 | if (u132->going > 1) { |
| 3155 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 3156 | , u132->going); |
| 3157 | return -ENODEV; |
| 3158 | } else if (u132->going > 0) { |
| 3159 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 3160 | return -ESHUTDOWN; |
| 3161 | } else { |
Mirco Tischler | 038eb0e | 2008-02-24 05:16:39 +0100 | [diff] [blame] | 3162 | int retval = 0, ports; |
Rafael J. Wysocki | 3a2d5b7 | 2008-02-23 19:13:25 +0100 | [diff] [blame] | 3163 | |
| 3164 | switch (state.event) { |
| 3165 | case PM_EVENT_FREEZE: |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3166 | retval = u132_bus_suspend(hcd); |
Rafael J. Wysocki | 3a2d5b7 | 2008-02-23 19:13:25 +0100 | [diff] [blame] | 3167 | break; |
| 3168 | case PM_EVENT_SUSPEND: |
| 3169 | case PM_EVENT_HIBERNATE: |
Mirco Tischler | 038eb0e | 2008-02-24 05:16:39 +0100 | [diff] [blame] | 3170 | ports = MAX_U132_PORTS; |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3171 | while (ports-- > 0) { |
| 3172 | port_power(u132, ports, 0); |
| 3173 | } |
Rafael J. Wysocki | 3a2d5b7 | 2008-02-23 19:13:25 +0100 | [diff] [blame] | 3174 | break; |
| 3175 | } |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3176 | return retval; |
| 3177 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3178 | } |
| 3179 | |
| 3180 | static int u132_resume(struct platform_device *pdev) |
| 3181 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3182 | struct usb_hcd *hcd = platform_get_drvdata(pdev); |
| 3183 | struct u132 *u132 = hcd_to_u132(hcd); |
| 3184 | if (u132->going > 1) { |
| 3185 | dev_err(&u132->platform_dev->dev, "device has been removed %d\n" |
| 3186 | , u132->going); |
| 3187 | return -ENODEV; |
| 3188 | } else if (u132->going > 0) { |
| 3189 | dev_err(&u132->platform_dev->dev, "device is being removed\n"); |
| 3190 | return -ESHUTDOWN; |
| 3191 | } else { |
| 3192 | int retval = 0; |
Alan Stern | 70a1c9e | 2008-03-06 17:00:58 -0500 | [diff] [blame] | 3193 | if (!u132->port[0].power) { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3194 | int ports = MAX_U132_PORTS; |
| 3195 | while (ports-- > 0) { |
| 3196 | port_power(u132, ports, 1); |
| 3197 | } |
| 3198 | retval = 0; |
| 3199 | } else { |
| 3200 | retval = u132_bus_resume(hcd); |
| 3201 | } |
| 3202 | return retval; |
| 3203 | } |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3204 | } |
| 3205 | |
| 3206 | #else |
| 3207 | #define u132_suspend NULL |
| 3208 | #define u132_resume NULL |
| 3209 | #endif |
| 3210 | /* |
Matt LaPlante | 0779bf2 | 2006-11-30 05:24:39 +0100 | [diff] [blame] | 3211 | * this driver is loaded explicitly by ftdi_u132 |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3212 | * |
| 3213 | * the platform_driver struct is static because it is per type of module |
| 3214 | */ |
| 3215 | static struct platform_driver u132_platform_driver = { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3216 | .probe = u132_probe, |
Bill Pemberton | 7690417 | 2012-11-19 13:21:08 -0500 | [diff] [blame] | 3217 | .remove = u132_remove, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3218 | .suspend = u132_suspend, |
| 3219 | .resume = u132_resume, |
| 3220 | .driver = { |
Geert Uytterhoeven | a458677 | 2013-11-12 20:07:25 +0100 | [diff] [blame] | 3221 | .name = hcd_name, |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3222 | .owner = THIS_MODULE, |
| 3223 | }, |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3224 | }; |
| 3225 | static int __init u132_hcd_init(void) |
| 3226 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3227 | int retval; |
| 3228 | INIT_LIST_HEAD(&u132_static_list); |
| 3229 | u132_instances = 0; |
| 3230 | u132_exiting = 0; |
| 3231 | mutex_init(&u132_module_lock); |
| 3232 | if (usb_disabled()) |
| 3233 | return -ENODEV; |
Michal Marek | 654d121 | 2011-04-05 16:59:11 +0200 | [diff] [blame] | 3234 | printk(KERN_INFO "driver %s\n", hcd_name); |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3235 | workqueue = create_singlethread_workqueue("u132"); |
| 3236 | retval = platform_driver_register(&u132_platform_driver); |
| 3237 | return retval; |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3238 | } |
| 3239 | |
| 3240 | |
| 3241 | module_init(u132_hcd_init); |
| 3242 | static void __exit u132_hcd_exit(void) |
| 3243 | { |
Daniel Walker | b40f8d3 | 2008-03-23 00:00:01 -0700 | [diff] [blame] | 3244 | struct u132 *u132; |
| 3245 | struct u132 *temp; |
| 3246 | mutex_lock(&u132_module_lock); |
| 3247 | u132_exiting += 1; |
| 3248 | mutex_unlock(&u132_module_lock); |
| 3249 | list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { |
| 3250 | platform_device_unregister(u132->platform_dev); |
| 3251 | } |
| 3252 | platform_driver_unregister(&u132_platform_driver); |
| 3253 | printk(KERN_INFO "u132-hcd driver deregistered\n"); |
| 3254 | wait_event(u132_hcd_wait, u132_instances == 0); |
| 3255 | flush_workqueue(workqueue); |
| 3256 | destroy_workqueue(workqueue); |
Tony Olech | d774efe | 2006-09-13 11:27:35 +0100 | [diff] [blame] | 3257 | } |
| 3258 | |
| 3259 | |
| 3260 | module_exit(u132_hcd_exit); |
| 3261 | MODULE_LICENSE("GPL"); |
Kay Sievers | f4fce61 | 2008-04-10 21:29:22 -0700 | [diff] [blame] | 3262 | MODULE_ALIAS("platform:u132_hcd"); |