| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * ati_remote2 - ATI/Philips USB RF remote driver |
| * |
| * Copyright (C) 2005-2008 Ville Syrjala <syrjala@sci.fi> |
| * Copyright (C) 2007-2008 Peter Stokes <linux@dadeos.co.uk> |
| */ |
| |
| #include <linux/usb/input.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| |
| #define DRIVER_DESC "ATI/Philips USB RF remote driver" |
| |
| MODULE_DESCRIPTION(DRIVER_DESC); |
| MODULE_AUTHOR("Ville Syrjala <syrjala@sci.fi>"); |
| MODULE_LICENSE("GPL"); |
| |
| /* |
| * ATI Remote Wonder II Channel Configuration |
| * |
| * The remote control can be assigned one of sixteen "channels" in order to facilitate |
| * the use of multiple remote controls within range of each other. |
| * A remote's "channel" may be altered by pressing and holding the "PC" button for |
| * approximately 3 seconds, after which the button will slowly flash the count of the |
| * currently configured "channel", using the numeric keypad enter a number between 1 and |
| * 16 and then press the "PC" button again, the button will slowly flash the count of the |
| * newly configured "channel". |
| */ |
| |
| enum { |
| ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF, |
| ATI_REMOTE2_MAX_MODE_MASK = 0x1F, |
| }; |
| |
| static int ati_remote2_set_mask(const char *val, |
| const struct kernel_param *kp, |
| unsigned int max) |
| { |
| unsigned int mask; |
| int ret; |
| |
| if (!val) |
| return -EINVAL; |
| |
| ret = kstrtouint(val, 0, &mask); |
| if (ret) |
| return ret; |
| |
| if (mask & ~max) |
| return -EINVAL; |
| |
| *(unsigned int *)kp->arg = mask; |
| |
| return 0; |
| } |
| |
| static int ati_remote2_set_channel_mask(const char *val, |
| const struct kernel_param *kp) |
| { |
| pr_debug("%s()\n", __func__); |
| |
| return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK); |
| } |
| |
| static int ati_remote2_get_channel_mask(char *buffer, |
| const struct kernel_param *kp) |
| { |
| pr_debug("%s()\n", __func__); |
| |
| return sprintf(buffer, "0x%04x\n", *(unsigned int *)kp->arg); |
| } |
| |
| static int ati_remote2_set_mode_mask(const char *val, |
| const struct kernel_param *kp) |
| { |
| pr_debug("%s()\n", __func__); |
| |
| return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK); |
| } |
| |
| static int ati_remote2_get_mode_mask(char *buffer, |
| const struct kernel_param *kp) |
| { |
| pr_debug("%s()\n", __func__); |
| |
| return sprintf(buffer, "0x%02x\n", *(unsigned int *)kp->arg); |
| } |
| |
| static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK; |
| #define param_check_channel_mask(name, p) __param_check(name, p, unsigned int) |
| static const struct kernel_param_ops param_ops_channel_mask = { |
| .set = ati_remote2_set_channel_mask, |
| .get = ati_remote2_get_channel_mask, |
| }; |
| module_param(channel_mask, channel_mask, 0644); |
| MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>"); |
| |
| static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK; |
| #define param_check_mode_mask(name, p) __param_check(name, p, unsigned int) |
| static const struct kernel_param_ops param_ops_mode_mask = { |
| .set = ati_remote2_set_mode_mask, |
| .get = ati_remote2_get_mode_mask, |
| }; |
| module_param(mode_mask, mode_mask, 0644); |
| MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>"); |
| |
| static const struct usb_device_id ati_remote2_id_table[] = { |
| { USB_DEVICE(0x0471, 0x0602) }, /* ATI Remote Wonder II */ |
| { } |
| }; |
| MODULE_DEVICE_TABLE(usb, ati_remote2_id_table); |
| |
| static DEFINE_MUTEX(ati_remote2_mutex); |
| |
| enum { |
| ATI_REMOTE2_OPENED = 0x1, |
| ATI_REMOTE2_SUSPENDED = 0x2, |
| }; |
| |
| enum { |
| ATI_REMOTE2_AUX1, |
| ATI_REMOTE2_AUX2, |
| ATI_REMOTE2_AUX3, |
| ATI_REMOTE2_AUX4, |
| ATI_REMOTE2_PC, |
| ATI_REMOTE2_MODES, |
| }; |
| |
| static const struct { |
| u8 hw_code; |
| u16 keycode; |
| } ati_remote2_key_table[] = { |
| { 0x00, KEY_0 }, |
| { 0x01, KEY_1 }, |
| { 0x02, KEY_2 }, |
| { 0x03, KEY_3 }, |
| { 0x04, KEY_4 }, |
| { 0x05, KEY_5 }, |
| { 0x06, KEY_6 }, |
| { 0x07, KEY_7 }, |
| { 0x08, KEY_8 }, |
| { 0x09, KEY_9 }, |
| { 0x0c, KEY_POWER }, |
| { 0x0d, KEY_MUTE }, |
| { 0x10, KEY_VOLUMEUP }, |
| { 0x11, KEY_VOLUMEDOWN }, |
| { 0x20, KEY_CHANNELUP }, |
| { 0x21, KEY_CHANNELDOWN }, |
| { 0x28, KEY_FORWARD }, |
| { 0x29, KEY_REWIND }, |
| { 0x2c, KEY_PLAY }, |
| { 0x30, KEY_PAUSE }, |
| { 0x31, KEY_STOP }, |
| { 0x37, KEY_RECORD }, |
| { 0x38, KEY_DVD }, |
| { 0x39, KEY_TV }, |
| { 0x3f, KEY_PROG1 }, /* AUX1-AUX4 and PC */ |
| { 0x54, KEY_MENU }, |
| { 0x58, KEY_UP }, |
| { 0x59, KEY_DOWN }, |
| { 0x5a, KEY_LEFT }, |
| { 0x5b, KEY_RIGHT }, |
| { 0x5c, KEY_OK }, |
| { 0x78, KEY_A }, |
| { 0x79, KEY_B }, |
| { 0x7a, KEY_C }, |
| { 0x7b, KEY_D }, |
| { 0x7c, KEY_E }, |
| { 0x7d, KEY_F }, |
| { 0x82, KEY_ENTER }, |
| { 0x8e, KEY_VENDOR }, |
| { 0x96, KEY_COFFEE }, |
| { 0xa9, BTN_LEFT }, |
| { 0xaa, BTN_RIGHT }, |
| { 0xbe, KEY_QUESTION }, |
| { 0xd0, KEY_EDIT }, |
| { 0xd5, KEY_FRONT }, |
| { 0xf9, KEY_INFO }, |
| }; |
| |
| struct ati_remote2 { |
| struct input_dev *idev; |
| struct usb_device *udev; |
| |
| struct usb_interface *intf[2]; |
| struct usb_endpoint_descriptor *ep[2]; |
| struct urb *urb[2]; |
| void *buf[2]; |
| dma_addr_t buf_dma[2]; |
| |
| unsigned long jiffies; |
| int mode; |
| |
| char name[64]; |
| char phys[64]; |
| |
| /* Each mode (AUX1-AUX4 and PC) can have an independent keymap. */ |
| u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)]; |
| |
| unsigned int flags; |
| |
| unsigned int channel_mask; |
| unsigned int mode_mask; |
| }; |
| |
| static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id); |
| static void ati_remote2_disconnect(struct usb_interface *interface); |
| static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message); |
| static int ati_remote2_resume(struct usb_interface *interface); |
| static int ati_remote2_reset_resume(struct usb_interface *interface); |
| static int ati_remote2_pre_reset(struct usb_interface *interface); |
| static int ati_remote2_post_reset(struct usb_interface *interface); |
| |
| static struct usb_driver ati_remote2_driver = { |
| .name = "ati_remote2", |
| .probe = ati_remote2_probe, |
| .disconnect = ati_remote2_disconnect, |
| .id_table = ati_remote2_id_table, |
| .suspend = ati_remote2_suspend, |
| .resume = ati_remote2_resume, |
| .reset_resume = ati_remote2_reset_resume, |
| .pre_reset = ati_remote2_pre_reset, |
| .post_reset = ati_remote2_post_reset, |
| .supports_autosuspend = 1, |
| }; |
| |
| static int ati_remote2_submit_urbs(struct ati_remote2 *ar2) |
| { |
| int r; |
| |
| r = usb_submit_urb(ar2->urb[0], GFP_KERNEL); |
| if (r) { |
| dev_err(&ar2->intf[0]->dev, |
| "%s(): usb_submit_urb() = %d\n", __func__, r); |
| return r; |
| } |
| r = usb_submit_urb(ar2->urb[1], GFP_KERNEL); |
| if (r) { |
| usb_kill_urb(ar2->urb[0]); |
| dev_err(&ar2->intf[1]->dev, |
| "%s(): usb_submit_urb() = %d\n", __func__, r); |
| return r; |
| } |
| |
| return 0; |
| } |
| |
| static void ati_remote2_kill_urbs(struct ati_remote2 *ar2) |
| { |
| usb_kill_urb(ar2->urb[1]); |
| usb_kill_urb(ar2->urb[0]); |
| } |
| |
| static int ati_remote2_open(struct input_dev *idev) |
| { |
| struct ati_remote2 *ar2 = input_get_drvdata(idev); |
| int r; |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| r = usb_autopm_get_interface(ar2->intf[0]); |
| if (r) { |
| dev_err(&ar2->intf[0]->dev, |
| "%s(): usb_autopm_get_interface() = %d\n", __func__, r); |
| goto fail1; |
| } |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) { |
| r = ati_remote2_submit_urbs(ar2); |
| if (r) |
| goto fail2; |
| } |
| |
| ar2->flags |= ATI_REMOTE2_OPENED; |
| |
| mutex_unlock(&ati_remote2_mutex); |
| |
| usb_autopm_put_interface(ar2->intf[0]); |
| |
| return 0; |
| |
| fail2: |
| mutex_unlock(&ati_remote2_mutex); |
| usb_autopm_put_interface(ar2->intf[0]); |
| fail1: |
| return r; |
| } |
| |
| static void ati_remote2_close(struct input_dev *idev) |
| { |
| struct ati_remote2 *ar2 = input_get_drvdata(idev); |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| if (!(ar2->flags & ATI_REMOTE2_SUSPENDED)) |
| ati_remote2_kill_urbs(ar2); |
| |
| ar2->flags &= ~ATI_REMOTE2_OPENED; |
| |
| mutex_unlock(&ati_remote2_mutex); |
| } |
| |
| static void ati_remote2_input_mouse(struct ati_remote2 *ar2) |
| { |
| struct input_dev *idev = ar2->idev; |
| u8 *data = ar2->buf[0]; |
| int channel, mode; |
| |
| channel = data[0] >> 4; |
| |
| if (!((1 << channel) & ar2->channel_mask)) |
| return; |
| |
| mode = data[0] & 0x0F; |
| |
| if (mode > ATI_REMOTE2_PC) { |
| dev_err(&ar2->intf[0]->dev, |
| "Unknown mode byte (%02x %02x %02x %02x)\n", |
| data[3], data[2], data[1], data[0]); |
| return; |
| } |
| |
| if (!((1 << mode) & ar2->mode_mask)) |
| return; |
| |
| input_event(idev, EV_REL, REL_X, (s8) data[1]); |
| input_event(idev, EV_REL, REL_Y, (s8) data[2]); |
| input_sync(idev); |
| } |
| |
| static int ati_remote2_lookup(unsigned int hw_code) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(ati_remote2_key_table); i++) |
| if (ati_remote2_key_table[i].hw_code == hw_code) |
| return i; |
| |
| return -1; |
| } |
| |
| static void ati_remote2_input_key(struct ati_remote2 *ar2) |
| { |
| struct input_dev *idev = ar2->idev; |
| u8 *data = ar2->buf[1]; |
| int channel, mode, hw_code, index; |
| |
| channel = data[0] >> 4; |
| |
| if (!((1 << channel) & ar2->channel_mask)) |
| return; |
| |
| mode = data[0] & 0x0F; |
| |
| if (mode > ATI_REMOTE2_PC) { |
| dev_err(&ar2->intf[1]->dev, |
| "Unknown mode byte (%02x %02x %02x %02x)\n", |
| data[3], data[2], data[1], data[0]); |
| return; |
| } |
| |
| hw_code = data[2]; |
| if (hw_code == 0x3f) { |
| /* |
| * For some incomprehensible reason the mouse pad generates |
| * events which look identical to the events from the last |
| * pressed mode key. Naturally we don't want to generate key |
| * events for the mouse pad so we filter out any subsequent |
| * events from the same mode key. |
| */ |
| if (ar2->mode == mode) |
| return; |
| |
| if (data[1] == 0) |
| ar2->mode = mode; |
| } |
| |
| if (!((1 << mode) & ar2->mode_mask)) |
| return; |
| |
| index = ati_remote2_lookup(hw_code); |
| if (index < 0) { |
| dev_err(&ar2->intf[1]->dev, |
| "Unknown code byte (%02x %02x %02x %02x)\n", |
| data[3], data[2], data[1], data[0]); |
| return; |
| } |
| |
| switch (data[1]) { |
| case 0: /* release */ |
| break; |
| case 1: /* press */ |
| ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_DELAY]); |
| break; |
| case 2: /* repeat */ |
| |
| /* No repeat for mouse buttons. */ |
| if (ar2->keycode[mode][index] == BTN_LEFT || |
| ar2->keycode[mode][index] == BTN_RIGHT) |
| return; |
| |
| if (!time_after_eq(jiffies, ar2->jiffies)) |
| return; |
| |
| ar2->jiffies = jiffies + msecs_to_jiffies(idev->rep[REP_PERIOD]); |
| break; |
| default: |
| dev_err(&ar2->intf[1]->dev, |
| "Unknown state byte (%02x %02x %02x %02x)\n", |
| data[3], data[2], data[1], data[0]); |
| return; |
| } |
| |
| input_event(idev, EV_KEY, ar2->keycode[mode][index], data[1]); |
| input_sync(idev); |
| } |
| |
| static void ati_remote2_complete_mouse(struct urb *urb) |
| { |
| struct ati_remote2 *ar2 = urb->context; |
| int r; |
| |
| switch (urb->status) { |
| case 0: |
| usb_mark_last_busy(ar2->udev); |
| ati_remote2_input_mouse(ar2); |
| break; |
| case -ENOENT: |
| case -EILSEQ: |
| case -ECONNRESET: |
| case -ESHUTDOWN: |
| dev_dbg(&ar2->intf[0]->dev, |
| "%s(): urb status = %d\n", __func__, urb->status); |
| return; |
| default: |
| usb_mark_last_busy(ar2->udev); |
| dev_err(&ar2->intf[0]->dev, |
| "%s(): urb status = %d\n", __func__, urb->status); |
| } |
| |
| r = usb_submit_urb(urb, GFP_ATOMIC); |
| if (r) |
| dev_err(&ar2->intf[0]->dev, |
| "%s(): usb_submit_urb() = %d\n", __func__, r); |
| } |
| |
| static void ati_remote2_complete_key(struct urb *urb) |
| { |
| struct ati_remote2 *ar2 = urb->context; |
| int r; |
| |
| switch (urb->status) { |
| case 0: |
| usb_mark_last_busy(ar2->udev); |
| ati_remote2_input_key(ar2); |
| break; |
| case -ENOENT: |
| case -EILSEQ: |
| case -ECONNRESET: |
| case -ESHUTDOWN: |
| dev_dbg(&ar2->intf[1]->dev, |
| "%s(): urb status = %d\n", __func__, urb->status); |
| return; |
| default: |
| usb_mark_last_busy(ar2->udev); |
| dev_err(&ar2->intf[1]->dev, |
| "%s(): urb status = %d\n", __func__, urb->status); |
| } |
| |
| r = usb_submit_urb(urb, GFP_ATOMIC); |
| if (r) |
| dev_err(&ar2->intf[1]->dev, |
| "%s(): usb_submit_urb() = %d\n", __func__, r); |
| } |
| |
| static int ati_remote2_getkeycode(struct input_dev *idev, |
| struct input_keymap_entry *ke) |
| { |
| struct ati_remote2 *ar2 = input_get_drvdata(idev); |
| unsigned int mode; |
| int offset; |
| unsigned int index; |
| unsigned int scancode; |
| |
| if (ke->flags & INPUT_KEYMAP_BY_INDEX) { |
| index = ke->index; |
| if (index >= ATI_REMOTE2_MODES * |
| ARRAY_SIZE(ati_remote2_key_table)) |
| return -EINVAL; |
| |
| mode = ke->index / ARRAY_SIZE(ati_remote2_key_table); |
| offset = ke->index % ARRAY_SIZE(ati_remote2_key_table); |
| scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code; |
| } else { |
| if (input_scancode_to_scalar(ke, &scancode)) |
| return -EINVAL; |
| |
| mode = scancode >> 8; |
| if (mode > ATI_REMOTE2_PC) |
| return -EINVAL; |
| |
| offset = ati_remote2_lookup(scancode & 0xff); |
| if (offset < 0) |
| return -EINVAL; |
| |
| index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset; |
| } |
| |
| ke->keycode = ar2->keycode[mode][offset]; |
| ke->len = sizeof(scancode); |
| memcpy(&ke->scancode, &scancode, sizeof(scancode)); |
| ke->index = index; |
| |
| return 0; |
| } |
| |
| static int ati_remote2_setkeycode(struct input_dev *idev, |
| const struct input_keymap_entry *ke, |
| unsigned int *old_keycode) |
| { |
| struct ati_remote2 *ar2 = input_get_drvdata(idev); |
| unsigned int mode; |
| int offset; |
| unsigned int index; |
| unsigned int scancode; |
| |
| if (ke->flags & INPUT_KEYMAP_BY_INDEX) { |
| if (ke->index >= ATI_REMOTE2_MODES * |
| ARRAY_SIZE(ati_remote2_key_table)) |
| return -EINVAL; |
| |
| mode = ke->index / ARRAY_SIZE(ati_remote2_key_table); |
| offset = ke->index % ARRAY_SIZE(ati_remote2_key_table); |
| } else { |
| if (input_scancode_to_scalar(ke, &scancode)) |
| return -EINVAL; |
| |
| mode = scancode >> 8; |
| if (mode > ATI_REMOTE2_PC) |
| return -EINVAL; |
| |
| offset = ati_remote2_lookup(scancode & 0xff); |
| if (offset < 0) |
| return -EINVAL; |
| } |
| |
| *old_keycode = ar2->keycode[mode][offset]; |
| ar2->keycode[mode][offset] = ke->keycode; |
| __set_bit(ke->keycode, idev->keybit); |
| |
| for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) { |
| for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) { |
| if (ar2->keycode[mode][index] == *old_keycode) |
| return 0; |
| } |
| } |
| |
| __clear_bit(*old_keycode, idev->keybit); |
| |
| return 0; |
| } |
| |
| static int ati_remote2_input_init(struct ati_remote2 *ar2) |
| { |
| struct input_dev *idev; |
| int index, mode, retval; |
| |
| idev = input_allocate_device(); |
| if (!idev) |
| return -ENOMEM; |
| |
| ar2->idev = idev; |
| input_set_drvdata(idev, ar2); |
| |
| idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | BIT_MASK(EV_REL); |
| idev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | |
| BIT_MASK(BTN_RIGHT); |
| idev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y); |
| |
| for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) { |
| for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) { |
| ar2->keycode[mode][index] = ati_remote2_key_table[index].keycode; |
| __set_bit(ar2->keycode[mode][index], idev->keybit); |
| } |
| } |
| |
| /* AUX1-AUX4 and PC generate the same scancode. */ |
| index = ati_remote2_lookup(0x3f); |
| ar2->keycode[ATI_REMOTE2_AUX1][index] = KEY_PROG1; |
| ar2->keycode[ATI_REMOTE2_AUX2][index] = KEY_PROG2; |
| ar2->keycode[ATI_REMOTE2_AUX3][index] = KEY_PROG3; |
| ar2->keycode[ATI_REMOTE2_AUX4][index] = KEY_PROG4; |
| ar2->keycode[ATI_REMOTE2_PC][index] = KEY_PC; |
| __set_bit(KEY_PROG1, idev->keybit); |
| __set_bit(KEY_PROG2, idev->keybit); |
| __set_bit(KEY_PROG3, idev->keybit); |
| __set_bit(KEY_PROG4, idev->keybit); |
| __set_bit(KEY_PC, idev->keybit); |
| |
| idev->rep[REP_DELAY] = 250; |
| idev->rep[REP_PERIOD] = 33; |
| |
| idev->open = ati_remote2_open; |
| idev->close = ati_remote2_close; |
| |
| idev->getkeycode = ati_remote2_getkeycode; |
| idev->setkeycode = ati_remote2_setkeycode; |
| |
| idev->name = ar2->name; |
| idev->phys = ar2->phys; |
| |
| usb_to_input_id(ar2->udev, &idev->id); |
| idev->dev.parent = &ar2->udev->dev; |
| |
| retval = input_register_device(idev); |
| if (retval) |
| input_free_device(idev); |
| |
| return retval; |
| } |
| |
| static int ati_remote2_urb_init(struct ati_remote2 *ar2) |
| { |
| struct usb_device *udev = ar2->udev; |
| int i, pipe, maxp; |
| |
| for (i = 0; i < 2; i++) { |
| ar2->buf[i] = usb_alloc_coherent(udev, 4, GFP_KERNEL, &ar2->buf_dma[i]); |
| if (!ar2->buf[i]) |
| return -ENOMEM; |
| |
| ar2->urb[i] = usb_alloc_urb(0, GFP_KERNEL); |
| if (!ar2->urb[i]) |
| return -ENOMEM; |
| |
| pipe = usb_rcvintpipe(udev, ar2->ep[i]->bEndpointAddress); |
| maxp = usb_maxpacket(udev, pipe); |
| maxp = maxp > 4 ? 4 : maxp; |
| |
| usb_fill_int_urb(ar2->urb[i], udev, pipe, ar2->buf[i], maxp, |
| i ? ati_remote2_complete_key : ati_remote2_complete_mouse, |
| ar2, ar2->ep[i]->bInterval); |
| ar2->urb[i]->transfer_dma = ar2->buf_dma[i]; |
| ar2->urb[i]->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; |
| } |
| |
| return 0; |
| } |
| |
| static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2) |
| { |
| int i; |
| |
| for (i = 0; i < 2; i++) { |
| usb_free_urb(ar2->urb[i]); |
| usb_free_coherent(ar2->udev, 4, ar2->buf[i], ar2->buf_dma[i]); |
| } |
| } |
| |
| static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask) |
| { |
| int r, i, channel; |
| |
| /* |
| * Configure receiver to only accept input from remote "channel" |
| * channel == 0 -> Accept input from any remote channel |
| * channel == 1 -> Only accept input from remote channel 1 |
| * channel == 2 -> Only accept input from remote channel 2 |
| * ... |
| * channel == 16 -> Only accept input from remote channel 16 |
| */ |
| |
| channel = 0; |
| for (i = 0; i < 16; i++) { |
| if ((1 << i) & ch_mask) { |
| if (!(~(1 << i) & ch_mask)) |
| channel = i + 1; |
| break; |
| } |
| } |
| |
| r = usb_control_msg(ar2->udev, usb_sndctrlpipe(ar2->udev, 0), |
| 0x20, |
| USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE, |
| channel, 0x0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
| if (r) { |
| dev_err(&ar2->udev->dev, "%s - failed to set channel due to error: %d\n", |
| __func__, r); |
| return r; |
| } |
| |
| return 0; |
| } |
| |
| static ssize_t ati_remote2_show_channel_mask(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_device *udev = to_usb_device(dev); |
| struct usb_interface *intf = usb_ifnum_to_if(udev, 0); |
| struct ati_remote2 *ar2 = usb_get_intfdata(intf); |
| |
| return sprintf(buf, "0x%04x\n", ar2->channel_mask); |
| } |
| |
| static ssize_t ati_remote2_store_channel_mask(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_device *udev = to_usb_device(dev); |
| struct usb_interface *intf = usb_ifnum_to_if(udev, 0); |
| struct ati_remote2 *ar2 = usb_get_intfdata(intf); |
| unsigned int mask; |
| int r; |
| |
| r = kstrtouint(buf, 0, &mask); |
| if (r) |
| return r; |
| |
| if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK) |
| return -EINVAL; |
| |
| r = usb_autopm_get_interface(ar2->intf[0]); |
| if (r) { |
| dev_err(&ar2->intf[0]->dev, |
| "%s(): usb_autopm_get_interface() = %d\n", __func__, r); |
| return r; |
| } |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| if (mask != ar2->channel_mask) { |
| r = ati_remote2_setup(ar2, mask); |
| if (!r) |
| ar2->channel_mask = mask; |
| } |
| |
| mutex_unlock(&ati_remote2_mutex); |
| |
| usb_autopm_put_interface(ar2->intf[0]); |
| |
| return r ? r : count; |
| } |
| |
| static ssize_t ati_remote2_show_mode_mask(struct device *dev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct usb_device *udev = to_usb_device(dev); |
| struct usb_interface *intf = usb_ifnum_to_if(udev, 0); |
| struct ati_remote2 *ar2 = usb_get_intfdata(intf); |
| |
| return sprintf(buf, "0x%02x\n", ar2->mode_mask); |
| } |
| |
| static ssize_t ati_remote2_store_mode_mask(struct device *dev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct usb_device *udev = to_usb_device(dev); |
| struct usb_interface *intf = usb_ifnum_to_if(udev, 0); |
| struct ati_remote2 *ar2 = usb_get_intfdata(intf); |
| unsigned int mask; |
| int err; |
| |
| err = kstrtouint(buf, 0, &mask); |
| if (err) |
| return err; |
| |
| if (mask & ~ATI_REMOTE2_MAX_MODE_MASK) |
| return -EINVAL; |
| |
| ar2->mode_mask = mask; |
| |
| return count; |
| } |
| |
| static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask, |
| ati_remote2_store_channel_mask); |
| |
| static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask, |
| ati_remote2_store_mode_mask); |
| |
| static struct attribute *ati_remote2_attrs[] = { |
| &dev_attr_channel_mask.attr, |
| &dev_attr_mode_mask.attr, |
| NULL, |
| }; |
| |
| static struct attribute_group ati_remote2_attr_group = { |
| .attrs = ati_remote2_attrs, |
| }; |
| |
| static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id) |
| { |
| struct usb_device *udev = interface_to_usbdev(interface); |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| struct ati_remote2 *ar2; |
| int r; |
| |
| if (alt->desc.bInterfaceNumber) |
| return -ENODEV; |
| |
| ar2 = kzalloc(sizeof (struct ati_remote2), GFP_KERNEL); |
| if (!ar2) |
| return -ENOMEM; |
| |
| ar2->udev = udev; |
| |
| /* Sanity check, first interface must have an endpoint */ |
| if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) { |
| dev_err(&interface->dev, |
| "%s(): interface 0 must have an endpoint\n", __func__); |
| r = -ENODEV; |
| goto fail1; |
| } |
| ar2->intf[0] = interface; |
| ar2->ep[0] = &alt->endpoint[0].desc; |
| |
| /* Sanity check, the device must have two interfaces */ |
| ar2->intf[1] = usb_ifnum_to_if(udev, 1); |
| if ((udev->actconfig->desc.bNumInterfaces < 2) || !ar2->intf[1]) { |
| dev_err(&interface->dev, "%s(): need 2 interfaces, found %d\n", |
| __func__, udev->actconfig->desc.bNumInterfaces); |
| r = -ENODEV; |
| goto fail1; |
| } |
| |
| r = usb_driver_claim_interface(&ati_remote2_driver, ar2->intf[1], ar2); |
| if (r) |
| goto fail1; |
| |
| /* Sanity check, second interface must have an endpoint */ |
| alt = ar2->intf[1]->cur_altsetting; |
| if (alt->desc.bNumEndpoints < 1 || !alt->endpoint) { |
| dev_err(&interface->dev, |
| "%s(): interface 1 must have an endpoint\n", __func__); |
| r = -ENODEV; |
| goto fail2; |
| } |
| ar2->ep[1] = &alt->endpoint[0].desc; |
| |
| r = ati_remote2_urb_init(ar2); |
| if (r) |
| goto fail3; |
| |
| ar2->channel_mask = channel_mask; |
| ar2->mode_mask = mode_mask; |
| |
| r = ati_remote2_setup(ar2, ar2->channel_mask); |
| if (r) |
| goto fail3; |
| |
| usb_make_path(udev, ar2->phys, sizeof(ar2->phys)); |
| strlcat(ar2->phys, "/input0", sizeof(ar2->phys)); |
| |
| strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name)); |
| |
| r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group); |
| if (r) |
| goto fail3; |
| |
| r = ati_remote2_input_init(ar2); |
| if (r) |
| goto fail4; |
| |
| usb_set_intfdata(interface, ar2); |
| |
| interface->needs_remote_wakeup = 1; |
| |
| return 0; |
| |
| fail4: |
| sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group); |
| fail3: |
| ati_remote2_urb_cleanup(ar2); |
| fail2: |
| usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); |
| fail1: |
| kfree(ar2); |
| |
| return r; |
| } |
| |
| static void ati_remote2_disconnect(struct usb_interface *interface) |
| { |
| struct ati_remote2 *ar2; |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| |
| if (alt->desc.bInterfaceNumber) |
| return; |
| |
| ar2 = usb_get_intfdata(interface); |
| usb_set_intfdata(interface, NULL); |
| |
| input_unregister_device(ar2->idev); |
| |
| sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group); |
| |
| ati_remote2_urb_cleanup(ar2); |
| |
| usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); |
| |
| kfree(ar2); |
| } |
| |
| static int ati_remote2_suspend(struct usb_interface *interface, |
| pm_message_t message) |
| { |
| struct ati_remote2 *ar2; |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| |
| if (alt->desc.bInterfaceNumber) |
| return 0; |
| |
| ar2 = usb_get_intfdata(interface); |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| if (ar2->flags & ATI_REMOTE2_OPENED) |
| ati_remote2_kill_urbs(ar2); |
| |
| ar2->flags |= ATI_REMOTE2_SUSPENDED; |
| |
| mutex_unlock(&ati_remote2_mutex); |
| |
| return 0; |
| } |
| |
| static int ati_remote2_resume(struct usb_interface *interface) |
| { |
| struct ati_remote2 *ar2; |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| int r = 0; |
| |
| if (alt->desc.bInterfaceNumber) |
| return 0; |
| |
| ar2 = usb_get_intfdata(interface); |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| if (ar2->flags & ATI_REMOTE2_OPENED) |
| r = ati_remote2_submit_urbs(ar2); |
| |
| if (!r) |
| ar2->flags &= ~ATI_REMOTE2_SUSPENDED; |
| |
| mutex_unlock(&ati_remote2_mutex); |
| |
| return r; |
| } |
| |
| static int ati_remote2_reset_resume(struct usb_interface *interface) |
| { |
| struct ati_remote2 *ar2; |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| int r = 0; |
| |
| if (alt->desc.bInterfaceNumber) |
| return 0; |
| |
| ar2 = usb_get_intfdata(interface); |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| r = ati_remote2_setup(ar2, ar2->channel_mask); |
| if (r) |
| goto out; |
| |
| if (ar2->flags & ATI_REMOTE2_OPENED) |
| r = ati_remote2_submit_urbs(ar2); |
| |
| if (!r) |
| ar2->flags &= ~ATI_REMOTE2_SUSPENDED; |
| |
| out: |
| mutex_unlock(&ati_remote2_mutex); |
| |
| return r; |
| } |
| |
| static int ati_remote2_pre_reset(struct usb_interface *interface) |
| { |
| struct ati_remote2 *ar2; |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| |
| if (alt->desc.bInterfaceNumber) |
| return 0; |
| |
| ar2 = usb_get_intfdata(interface); |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| mutex_lock(&ati_remote2_mutex); |
| |
| if (ar2->flags == ATI_REMOTE2_OPENED) |
| ati_remote2_kill_urbs(ar2); |
| |
| return 0; |
| } |
| |
| static int ati_remote2_post_reset(struct usb_interface *interface) |
| { |
| struct ati_remote2 *ar2; |
| struct usb_host_interface *alt = interface->cur_altsetting; |
| int r = 0; |
| |
| if (alt->desc.bInterfaceNumber) |
| return 0; |
| |
| ar2 = usb_get_intfdata(interface); |
| |
| dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__); |
| |
| if (ar2->flags == ATI_REMOTE2_OPENED) |
| r = ati_remote2_submit_urbs(ar2); |
| |
| mutex_unlock(&ati_remote2_mutex); |
| |
| return r; |
| } |
| |
| module_usb_driver(ati_remote2_driver); |
