akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 1 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 2 | em28xx-core.c - driver for Empia EM2800/EM2820/2840 USB video capture devices |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 3 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 4 | Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it> |
| 5 | Markus Rechberger <mrechberger@gmail.com> |
Mauro Carvalho Chehab | 2e7c6dc | 2006-04-03 07:53:40 -0300 | [diff] [blame] | 6 | Mauro Carvalho Chehab <mchehab@infradead.org> |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 7 | Sascha Sommer <saschasommer@freenet.de> |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 8 | Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 9 | |
| 10 | This program is free software; you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation; either version 2 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program; if not, write to the Free Software |
| 22 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | */ |
| 24 | |
| 25 | #include <linux/init.h> |
Mauro Carvalho Chehab | 5022a20 | 2013-12-27 00:28:57 -0300 | [diff] [blame] | 26 | #include <linux/jiffies.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 27 | #include <linux/list.h> |
| 28 | #include <linux/module.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 29 | #include <linux/slab.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 30 | #include <linux/usb.h> |
| 31 | #include <linux/vmalloc.h> |
Ezequiel García | 67b8d03 | 2012-06-11 15:17:23 -0300 | [diff] [blame] | 32 | #include <sound/ac97_codec.h> |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 33 | #include <media/v4l2-common.h> |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 34 | |
Mauro Carvalho Chehab | f7abcd3 | 2005-11-08 21:38:25 -0800 | [diff] [blame] | 35 | #include "em28xx.h" |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 36 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 37 | #define DRIVER_AUTHOR "Ludovico Cavedon <cavedon@sssup.it>, " \ |
| 38 | "Markus Rechberger <mrechberger@gmail.com>, " \ |
| 39 | "Mauro Carvalho Chehab <mchehab@infradead.org>, " \ |
| 40 | "Sascha Sommer <saschasommer@freenet.de>" |
| 41 | |
Mauro Carvalho Chehab | 01c2819 | 2013-12-22 13:27:02 -0300 | [diff] [blame] | 42 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 43 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 44 | MODULE_LICENSE("GPL"); |
| 45 | MODULE_VERSION(EM28XX_VERSION); |
| 46 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 47 | /* #define ENABLE_DEBUG_ISOC_FRAMES */ |
| 48 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 49 | static unsigned int core_debug; |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 50 | module_param(core_debug, int, 0644); |
| 51 | MODULE_PARM_DESC(core_debug, "enable debug messages [core]"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 52 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 53 | #define em28xx_coredbg(fmt, arg...) do {\ |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 54 | if (core_debug) \ |
| 55 | printk(KERN_INFO "%s %s :"fmt, \ |
Harvey Harrison | d80e134 | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 56 | dev->name, __func__ , ##arg); } while (0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 57 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 58 | static unsigned int reg_debug; |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 59 | module_param(reg_debug, int, 0644); |
| 60 | MODULE_PARM_DESC(reg_debug, "enable debug messages [URB reg]"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 61 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 62 | #define em28xx_regdbg(fmt, arg...) do {\ |
Mauro Carvalho Chehab | 4ac9791 | 2005-11-08 21:37:43 -0800 | [diff] [blame] | 63 | if (reg_debug) \ |
| 64 | printk(KERN_INFO "%s %s :"fmt, \ |
Harvey Harrison | d80e134 | 2008-04-08 23:20:00 -0300 | [diff] [blame] | 65 | dev->name, __func__ , ##arg); } while (0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 66 | |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 67 | /* FIXME */ |
| 68 | #define em28xx_isocdbg(fmt, arg...) do {\ |
| 69 | if (core_debug) \ |
| 70 | printk(KERN_INFO "%s %s :"fmt, \ |
| 71 | dev->name, __func__ , ##arg); } while (0) |
| 72 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 73 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 74 | * em28xx_read_reg_req() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 75 | * reads data from the usb device specifying bRequest |
| 76 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 77 | int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 78 | char *buf, int len) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 79 | { |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 80 | int ret; |
| 81 | int pipe = usb_rcvctrlpipe(dev->udev, 0); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 82 | |
Frank Schaefer | 2665c29 | 2012-12-27 19:02:43 -0300 | [diff] [blame] | 83 | if (dev->disconnected) |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 84 | return -ENODEV; |
| 85 | |
| 86 | if (len > URB_MAX_CTRL_SIZE) |
| 87 | return -EINVAL; |
Markus Rechberger | 9f38724 | 2006-02-07 06:49:11 -0200 | [diff] [blame] | 88 | |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 89 | if (reg_debug) { |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 90 | printk(KERN_DEBUG "(pipe 0x%08x): " |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 91 | "IN: %02x %02x %02x %02x %02x %02x %02x %02x ", |
| 92 | pipe, |
| 93 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 94 | req, 0, 0, |
| 95 | reg & 0xff, reg >> 8, |
| 96 | len & 0xff, len >> 8); |
| 97 | } |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 98 | |
Mauro Carvalho Chehab | f2a2e49 | 2008-11-19 06:17:44 -0300 | [diff] [blame] | 99 | mutex_lock(&dev->ctrl_urb_lock); |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 100 | ret = usb_control_msg(dev->udev, pipe, req, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 101 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 102 | 0x0000, reg, dev->urb_buf, len, HZ); |
| 103 | if (ret < 0) { |
| 104 | if (reg_debug) |
| 105 | printk(" failed!\n"); |
Mauro Carvalho Chehab | f2a2e49 | 2008-11-19 06:17:44 -0300 | [diff] [blame] | 106 | mutex_unlock(&dev->ctrl_urb_lock); |
Frank Schaefer | 45f04e8 | 2013-01-03 14:27:05 -0300 | [diff] [blame] | 107 | return usb_translate_errors(ret); |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | if (len) |
| 111 | memcpy(buf, dev->urb_buf, len); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 112 | |
Mauro Carvalho Chehab | f2a2e49 | 2008-11-19 06:17:44 -0300 | [diff] [blame] | 113 | mutex_unlock(&dev->ctrl_urb_lock); |
| 114 | |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 115 | if (reg_debug) { |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 116 | int byte; |
| 117 | |
| 118 | printk("<<<"); |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 119 | for (byte = 0; byte < len; byte++) |
Mauro Carvalho Chehab | 82ac4f8 | 2008-04-17 21:46:14 -0300 | [diff] [blame] | 120 | printk(" %02x", (unsigned char)buf[byte]); |
Mauro Carvalho Chehab | 82ac4f8 | 2008-04-17 21:46:14 -0300 | [diff] [blame] | 121 | printk("\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | return ret; |
| 125 | } |
| 126 | |
| 127 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 128 | * em28xx_read_reg_req() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 129 | * reads data from the usb device specifying bRequest |
| 130 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 131 | int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 132 | { |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 133 | int ret; |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 134 | u8 val; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 135 | |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 136 | ret = em28xx_read_reg_req_len(dev, req, reg, &val, 1); |
| 137 | if (ret < 0) |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 138 | return ret; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 139 | |
| 140 | return val; |
| 141 | } |
| 142 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 143 | int em28xx_read_reg(struct em28xx *dev, u16 reg) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 144 | { |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 145 | return em28xx_read_reg_req(dev, USB_REQ_GET_STATUS, reg); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 146 | } |
Ezequiel García | 37e65dce | 2012-03-26 09:13:31 -0300 | [diff] [blame] | 147 | EXPORT_SYMBOL_GPL(em28xx_read_reg); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 148 | |
| 149 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 150 | * em28xx_write_regs_req() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 151 | * sends data to the usb device, specifying bRequest |
| 152 | */ |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 153 | int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 154 | int len) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 155 | { |
| 156 | int ret; |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 157 | int pipe = usb_sndctrlpipe(dev->udev, 0); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 158 | |
Frank Schaefer | 2665c29 | 2012-12-27 19:02:43 -0300 | [diff] [blame] | 159 | if (dev->disconnected) |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 160 | return -ENODEV; |
| 161 | |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 162 | if ((len < 1) || (len > URB_MAX_CTRL_SIZE)) |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 163 | return -EINVAL; |
Markus Rechberger | 9f38724 | 2006-02-07 06:49:11 -0200 | [diff] [blame] | 164 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 165 | if (reg_debug) { |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 166 | int byte; |
| 167 | |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 168 | printk(KERN_DEBUG "(pipe 0x%08x): " |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 169 | "OUT: %02x %02x %02x %02x %02x %02x %02x %02x >>>", |
| 170 | pipe, |
| 171 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
| 172 | req, 0, 0, |
| 173 | reg & 0xff, reg >> 8, |
| 174 | len & 0xff, len >> 8); |
| 175 | |
| 176 | for (byte = 0; byte < len; byte++) |
| 177 | printk(" %02x", (unsigned char)buf[byte]); |
Mauro Carvalho Chehab | 82ac4f8 | 2008-04-17 21:46:14 -0300 | [diff] [blame] | 178 | printk("\n"); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 179 | } |
| 180 | |
Mauro Carvalho Chehab | f2a2e49 | 2008-11-19 06:17:44 -0300 | [diff] [blame] | 181 | mutex_lock(&dev->ctrl_urb_lock); |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 182 | memcpy(dev->urb_buf, buf, len); |
Mauro Carvalho Chehab | 9e5d676 | 2008-11-26 09:58:48 -0300 | [diff] [blame] | 183 | ret = usb_control_msg(dev->udev, pipe, req, |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 184 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 185 | 0x0000, reg, dev->urb_buf, len, HZ); |
Mauro Carvalho Chehab | f2a2e49 | 2008-11-19 06:17:44 -0300 | [diff] [blame] | 186 | mutex_unlock(&dev->ctrl_urb_lock); |
Mauro Carvalho Chehab | c4a9879 | 2008-11-18 14:51:08 -0300 | [diff] [blame] | 187 | |
Frank Schaefer | 45f04e8 | 2013-01-03 14:27:05 -0300 | [diff] [blame] | 188 | if (ret < 0) |
| 189 | return usb_translate_errors(ret); |
| 190 | |
Mauro Carvalho Chehab | 89b329e | 2008-04-17 21:42:14 -0300 | [diff] [blame] | 191 | if (dev->wait_after_write) |
| 192 | msleep(dev->wait_after_write); |
| 193 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 194 | return ret; |
| 195 | } |
| 196 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 197 | int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 198 | { |
Frank Schaefer | 6914d70e | 2013-06-03 14:12:05 -0300 | [diff] [blame] | 199 | return em28xx_write_regs_req(dev, USB_REQ_GET_STATUS, reg, buf, len); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 200 | } |
Ezequiel García | 37e65dce | 2012-03-26 09:13:31 -0300 | [diff] [blame] | 201 | EXPORT_SYMBOL_GPL(em28xx_write_regs); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 202 | |
Devin Heitmueller | b697248 | 2008-11-20 09:52:20 -0300 | [diff] [blame] | 203 | /* Write a single register */ |
| 204 | int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val) |
| 205 | { |
| 206 | return em28xx_write_regs(dev, reg, &val, 1); |
| 207 | } |
Mauro Carvalho Chehab | fec528b | 2011-07-03 21:05:06 -0300 | [diff] [blame] | 208 | EXPORT_SYMBOL_GPL(em28xx_write_reg); |
Devin Heitmueller | b697248 | 2008-11-20 09:52:20 -0300 | [diff] [blame] | 209 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 210 | /* |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 211 | * em28xx_write_reg_bits() |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 212 | * sets only some bits (specified by bitmask) of a register, by first reading |
| 213 | * the actual value |
| 214 | */ |
Mauro Carvalho Chehab | 1bad429 | 2009-12-05 08:27:49 -0300 | [diff] [blame] | 215 | int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 216 | u8 bitmask) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 217 | { |
| 218 | int oldval; |
| 219 | u8 newval; |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 220 | |
Frank Schaefer | 6914d70e | 2013-06-03 14:12:05 -0300 | [diff] [blame] | 221 | oldval = em28xx_read_reg(dev, reg); |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 222 | if (oldval < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 223 | return oldval; |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 224 | |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 225 | newval = (((u8)oldval) & ~bitmask) | (val & bitmask); |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 226 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 227 | return em28xx_write_regs(dev, reg, &newval, 1); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 228 | } |
Ezequiel García | 37e65dce | 2012-03-26 09:13:31 -0300 | [diff] [blame] | 229 | EXPORT_SYMBOL_GPL(em28xx_write_reg_bits); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 230 | |
| 231 | /* |
Frank Schaefer | 6063d07 | 2013-12-01 18:06:56 -0300 | [diff] [blame] | 232 | * em28xx_toggle_reg_bits() |
| 233 | * toggles/inverts the bits (specified by bitmask) of a register |
| 234 | */ |
| 235 | int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask) |
| 236 | { |
| 237 | int oldval; |
| 238 | u8 newval; |
| 239 | |
| 240 | oldval = em28xx_read_reg(dev, reg); |
| 241 | if (oldval < 0) |
| 242 | return oldval; |
| 243 | |
| 244 | newval = (~oldval & bitmask) | (oldval & ~bitmask); |
| 245 | |
| 246 | return em28xx_write_reg(dev, reg, newval); |
| 247 | } |
| 248 | EXPORT_SYMBOL_GPL(em28xx_toggle_reg_bits); |
| 249 | |
| 250 | /* |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 251 | * em28xx_is_ac97_ready() |
| 252 | * Checks if ac97 is ready |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 253 | */ |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 254 | static int em28xx_is_ac97_ready(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 255 | { |
Mauro Carvalho Chehab | 5022a20 | 2013-12-27 00:28:57 -0300 | [diff] [blame] | 256 | unsigned long timeout = jiffies + msecs_to_jiffies(EM28XX_AC97_XFER_TIMEOUT); |
| 257 | int ret; |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 258 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 259 | /* Wait up to 50 ms for AC97 command to complete */ |
Mauro Carvalho Chehab | 5022a20 | 2013-12-27 00:28:57 -0300 | [diff] [blame] | 260 | while (time_is_after_jiffies(timeout)) { |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 261 | ret = em28xx_read_reg(dev, EM28XX_R43_AC97BUSY); |
| 262 | if (ret < 0) |
| 263 | return ret; |
| 264 | |
| 265 | if (!(ret & 0x01)) |
| 266 | return 0; |
Mauro Carvalho Chehab | 5022a20 | 2013-12-27 00:28:57 -0300 | [diff] [blame] | 267 | msleep(5); |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | em28xx_warn("AC97 command still being executed: not handled properly!\n"); |
| 271 | return -EBUSY; |
| 272 | } |
| 273 | |
| 274 | /* |
| 275 | * em28xx_read_ac97() |
| 276 | * write a 16 bit value to the specified AC97 address (LSB first!) |
| 277 | */ |
Mauro Carvalho Chehab | 531c98e | 2008-12-22 13:18:27 -0300 | [diff] [blame] | 278 | int em28xx_read_ac97(struct em28xx *dev, u8 reg) |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 279 | { |
| 280 | int ret; |
| 281 | u8 addr = (reg & 0x7f) | 0x80; |
Hans Verkuil | 4a9e512 | 2014-08-21 16:43:03 -0300 | [diff] [blame] | 282 | __le16 val; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 283 | |
| 284 | ret = em28xx_is_ac97_ready(dev); |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 285 | if (ret < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 286 | return ret; |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 287 | |
Mauro Carvalho Chehab | 41facaa | 2008-04-17 21:44:58 -0300 | [diff] [blame] | 288 | ret = em28xx_write_regs(dev, EM28XX_R42_AC97ADDR, &addr, 1); |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 289 | if (ret < 0) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 290 | return ret; |
Mauro Carvalho Chehab | 00b8730 | 2008-02-06 18:34:13 -0300 | [diff] [blame] | 291 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 292 | ret = dev->em28xx_read_reg_req_len(dev, 0, EM28XX_R40_AC97LSB, |
| 293 | (u8 *)&val, sizeof(val)); |
Douglas Schilling Landgraf | 6ea54d9 | 2008-04-17 21:41:10 -0300 | [diff] [blame] | 294 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 295 | if (ret < 0) |
| 296 | return ret; |
| 297 | return le16_to_cpu(val); |
| 298 | } |
Mauro Carvalho Chehab | 850d24a | 2011-06-19 13:06:40 -0300 | [diff] [blame] | 299 | EXPORT_SYMBOL_GPL(em28xx_read_ac97); |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 300 | |
| 301 | /* |
| 302 | * em28xx_write_ac97() |
| 303 | * write a 16 bit value to the specified AC97 address (LSB first!) |
| 304 | */ |
Mauro Carvalho Chehab | 531c98e | 2008-12-22 13:18:27 -0300 | [diff] [blame] | 305 | int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val) |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 306 | { |
| 307 | int ret; |
| 308 | u8 addr = reg & 0x7f; |
| 309 | __le16 value; |
| 310 | |
| 311 | value = cpu_to_le16(val); |
| 312 | |
| 313 | ret = em28xx_is_ac97_ready(dev); |
| 314 | if (ret < 0) |
| 315 | return ret; |
| 316 | |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 317 | ret = em28xx_write_regs(dev, EM28XX_R40_AC97LSB, (u8 *)&value, 2); |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 318 | if (ret < 0) |
| 319 | return ret; |
| 320 | |
| 321 | ret = em28xx_write_regs(dev, EM28XX_R42_AC97ADDR, &addr, 1); |
| 322 | if (ret < 0) |
| 323 | return ret; |
| 324 | |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 325 | return 0; |
| 326 | } |
Mauro Carvalho Chehab | 850d24a | 2011-06-19 13:06:40 -0300 | [diff] [blame] | 327 | EXPORT_SYMBOL_GPL(em28xx_write_ac97); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 328 | |
Mauro Carvalho Chehab | 0f8a61f | 2011-06-18 07:02:49 -0300 | [diff] [blame] | 329 | struct em28xx_vol_itable { |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 330 | enum em28xx_amux mux; |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 331 | u8 reg; |
| 332 | }; |
| 333 | |
Mauro Carvalho Chehab | 0f8a61f | 2011-06-18 07:02:49 -0300 | [diff] [blame] | 334 | static struct em28xx_vol_itable inputs[] = { |
Ezequiel García | 67b8d03 | 2012-06-11 15:17:23 -0300 | [diff] [blame] | 335 | { EM28XX_AMUX_VIDEO, AC97_VIDEO }, |
| 336 | { EM28XX_AMUX_LINE_IN, AC97_LINE }, |
| 337 | { EM28XX_AMUX_PHONE, AC97_PHONE }, |
| 338 | { EM28XX_AMUX_MIC, AC97_MIC }, |
| 339 | { EM28XX_AMUX_CD, AC97_CD }, |
| 340 | { EM28XX_AMUX_AUX, AC97_AUX }, |
| 341 | { EM28XX_AMUX_PCM_OUT, AC97_PCM }, |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 342 | }; |
| 343 | |
| 344 | static int set_ac97_input(struct em28xx *dev) |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 345 | { |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 346 | int ret, i; |
| 347 | enum em28xx_amux amux = dev->ctl_ainput; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 348 | |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 349 | /* EM28XX_AMUX_VIDEO2 is a special case used to indicate that |
| 350 | em28xx should point to LINE IN, while AC97 should use VIDEO |
| 351 | */ |
| 352 | if (amux == EM28XX_AMUX_VIDEO2) |
Mauro Carvalho Chehab | f1990a9 | 2008-11-20 12:10:44 -0300 | [diff] [blame] | 353 | amux = EM28XX_AMUX_VIDEO; |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 354 | |
| 355 | /* Mute all entres but the one that were selected */ |
| 356 | for (i = 0; i < ARRAY_SIZE(inputs); i++) { |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 357 | if (amux == inputs[i].mux) |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 358 | ret = em28xx_write_ac97(dev, inputs[i].reg, 0x0808); |
| 359 | else |
| 360 | ret = em28xx_write_ac97(dev, inputs[i].reg, 0x8000); |
| 361 | |
| 362 | if (ret < 0) |
| 363 | em28xx_warn("couldn't setup AC97 register %d\n", |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 364 | inputs[i].reg); |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 365 | } |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 366 | return 0; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 367 | } |
| 368 | |
Mauro Carvalho Chehab | 00b8730 | 2008-02-06 18:34:13 -0300 | [diff] [blame] | 369 | static int em28xx_set_audio_source(struct em28xx *dev) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 370 | { |
Andrew Morton | 1685a6f | 2008-02-05 07:37:21 -0300 | [diff] [blame] | 371 | int ret; |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 372 | u8 input; |
| 373 | |
Mauro Carvalho Chehab | 505b6d0 | 2008-11-25 09:39:50 -0300 | [diff] [blame] | 374 | if (dev->board.is_em2800) { |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 375 | if (dev->ctl_ainput == EM28XX_AMUX_VIDEO) |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 376 | input = EM2800_AUDIO_SRC_TUNER; |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 377 | else |
| 378 | input = EM2800_AUDIO_SRC_LINE; |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 379 | |
Mauro Carvalho Chehab | 41facaa | 2008-04-17 21:44:58 -0300 | [diff] [blame] | 380 | ret = em28xx_write_regs(dev, EM2800_R08_AUDIOSRC, &input, 1); |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 381 | if (ret < 0) |
| 382 | return ret; |
| 383 | } |
| 384 | |
Mauro Carvalho Chehab | 505b6d0 | 2008-11-25 09:39:50 -0300 | [diff] [blame] | 385 | if (dev->board.has_msp34xx) |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 386 | input = EM28XX_AUDIO_SRC_TUNER; |
| 387 | else { |
| 388 | switch (dev->ctl_ainput) { |
| 389 | case EM28XX_AMUX_VIDEO: |
| 390 | input = EM28XX_AUDIO_SRC_TUNER; |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 391 | break; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 392 | default: |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 393 | input = EM28XX_AUDIO_SRC_LINE; |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 394 | break; |
| 395 | } |
| 396 | } |
| 397 | |
Vitaly Wool | 2bd1d9e | 2009-03-04 08:27:52 -0300 | [diff] [blame] | 398 | if (dev->board.mute_gpio && dev->mute) |
| 399 | em28xx_gpio_set(dev, dev->board.mute_gpio); |
| 400 | else |
| 401 | em28xx_gpio_set(dev, INPUT(dev->ctl_input)->gpio); |
| 402 | |
Mauro Carvalho Chehab | 41facaa | 2008-04-17 21:44:58 -0300 | [diff] [blame] | 403 | ret = em28xx_write_reg_bits(dev, EM28XX_R0E_AUDIOSRC, input, 0xc0); |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 404 | if (ret < 0) |
| 405 | return ret; |
Mauro Carvalho Chehab | 00b8730 | 2008-02-06 18:34:13 -0300 | [diff] [blame] | 406 | msleep(5); |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 407 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 408 | switch (dev->audio_mode.ac97) { |
| 409 | case EM28XX_NO_AC97: |
| 410 | break; |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 411 | default: |
| 412 | ret = set_ac97_input(dev); |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 413 | } |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 414 | |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 415 | return ret; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 416 | } |
| 417 | |
Mauro Carvalho Chehab | 0f8a61f | 2011-06-18 07:02:49 -0300 | [diff] [blame] | 418 | struct em28xx_vol_otable { |
| 419 | enum em28xx_aout mux; |
| 420 | u8 reg; |
| 421 | }; |
| 422 | |
| 423 | static const struct em28xx_vol_otable outputs[] = { |
Ezequiel García | 67b8d03 | 2012-06-11 15:17:23 -0300 | [diff] [blame] | 424 | { EM28XX_AOUT_MASTER, AC97_MASTER }, |
| 425 | { EM28XX_AOUT_LINE, AC97_HEADPHONE }, |
| 426 | { EM28XX_AOUT_MONO, AC97_MASTER_MONO }, |
| 427 | { EM28XX_AOUT_LFE, AC97_CENTER_LFE_MASTER }, |
| 428 | { EM28XX_AOUT_SURR, AC97_SURROUND_MASTER }, |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 429 | }; |
| 430 | |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 431 | int em28xx_audio_analog_set(struct em28xx *dev) |
| 432 | { |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 433 | int ret, i; |
Mauro Carvalho Chehab | a2070c6 | 2008-11-25 07:05:06 -0300 | [diff] [blame] | 434 | u8 xclk; |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 435 | |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 436 | if (dev->int_audio_type == EM28XX_INT_AUDIO_NONE) |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 437 | return 0; |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 438 | |
Mauro Carvalho Chehab | 5faff78 | 2008-11-20 09:06:09 -0300 | [diff] [blame] | 439 | /* It is assumed that all devices use master volume for output. |
| 440 | It would be possible to use also line output. |
| 441 | */ |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 442 | if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 443 | /* Mute all outputs */ |
| 444 | for (i = 0; i < ARRAY_SIZE(outputs); i++) { |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 445 | ret = em28xx_write_ac97(dev, outputs[i].reg, 0x8000); |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 446 | if (ret < 0) |
| 447 | em28xx_warn("couldn't setup AC97 register %d\n", |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 448 | outputs[i].reg); |
Mauro Carvalho Chehab | 35ae6f0 | 2008-11-20 12:40:51 -0300 | [diff] [blame] | 449 | } |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 450 | } |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 451 | |
Mauro Carvalho Chehab | 505b6d0 | 2008-11-25 09:39:50 -0300 | [diff] [blame] | 452 | xclk = dev->board.xclk & 0x7f; |
Mauro Carvalho Chehab | 3abee53 | 2008-01-05 17:01:41 -0300 | [diff] [blame] | 453 | if (!dev->mute) |
Robert Krakora | 8ed06fd | 2009-01-18 21:44:46 -0300 | [diff] [blame] | 454 | xclk |= EM28XX_XCLK_AUDIO_UNMUTE; |
Mauro Carvalho Chehab | 3abee53 | 2008-01-05 17:01:41 -0300 | [diff] [blame] | 455 | |
Mauro Carvalho Chehab | a2070c6 | 2008-11-25 07:05:06 -0300 | [diff] [blame] | 456 | ret = em28xx_write_reg(dev, EM28XX_R0F_XCLK, xclk); |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 457 | if (ret < 0) |
| 458 | return ret; |
Mauro Carvalho Chehab | 3abee53 | 2008-01-05 17:01:41 -0300 | [diff] [blame] | 459 | msleep(10); |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 460 | |
| 461 | /* Selects the proper audio input */ |
| 462 | ret = em28xx_set_audio_source(dev); |
| 463 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 464 | /* Sets volume */ |
| 465 | if (dev->audio_mode.ac97 != EM28XX_NO_AC97) { |
| 466 | int vol; |
| 467 | |
Ezequiel García | 67b8d03 | 2012-06-11 15:17:23 -0300 | [diff] [blame] | 468 | em28xx_write_ac97(dev, AC97_POWERDOWN, 0x4200); |
| 469 | em28xx_write_ac97(dev, AC97_EXTENDED_STATUS, 0x0031); |
| 470 | em28xx_write_ac97(dev, AC97_PCM_LR_ADC_RATE, 0xbb80); |
Robert Krakora | 7e4b15e | 2009-01-18 21:45:28 -0300 | [diff] [blame] | 471 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 472 | /* LSB: left channel - both channels with the same level */ |
| 473 | vol = (0x1f - dev->volume) | ((0x1f - dev->volume) << 8); |
| 474 | |
| 475 | /* Mute device, if needed */ |
| 476 | if (dev->mute) |
| 477 | vol |= 0x8000; |
| 478 | |
| 479 | /* Sets volume */ |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 480 | for (i = 0; i < ARRAY_SIZE(outputs); i++) { |
| 481 | if (dev->ctl_aoutput & outputs[i].mux) |
| 482 | ret = em28xx_write_ac97(dev, outputs[i].reg, |
| 483 | vol); |
| 484 | if (ret < 0) |
| 485 | em28xx_warn("couldn't setup AC97 register %d\n", |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 486 | outputs[i].reg); |
Mauro Carvalho Chehab | e879b8e | 2008-11-20 13:39:39 -0300 | [diff] [blame] | 487 | } |
Mauro Carvalho Chehab | 8866f9c | 2009-01-12 21:50:52 -0300 | [diff] [blame] | 488 | |
| 489 | if (dev->ctl_aoutput & EM28XX_AOUT_PCM_IN) { |
| 490 | int sel = ac97_return_record_select(dev->ctl_aoutput); |
| 491 | |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 492 | /* Use the same input for both left and right |
| 493 | channels */ |
Mauro Carvalho Chehab | 8866f9c | 2009-01-12 21:50:52 -0300 | [diff] [blame] | 494 | sel |= (sel << 8); |
| 495 | |
Ezequiel García | 67b8d03 | 2012-06-11 15:17:23 -0300 | [diff] [blame] | 496 | em28xx_write_ac97(dev, AC97_REC_SEL, sel); |
Mauro Carvalho Chehab | 8866f9c | 2009-01-12 21:50:52 -0300 | [diff] [blame] | 497 | } |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 498 | } |
Mauro Carvalho Chehab | 00b8730 | 2008-02-06 18:34:13 -0300 | [diff] [blame] | 499 | |
Mauro Carvalho Chehab | 539c96d | 2008-01-05 09:53:54 -0300 | [diff] [blame] | 500 | return ret; |
| 501 | } |
| 502 | EXPORT_SYMBOL_GPL(em28xx_audio_analog_set); |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 503 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 504 | int em28xx_audio_setup(struct em28xx *dev) |
| 505 | { |
| 506 | int vid1, vid2, feat, cfg; |
Hans Verkuil | 430e357 | 2014-09-29 06:48:16 -0300 | [diff] [blame] | 507 | u32 vid = 0; |
Frank Schaefer | 60a24ba | 2014-09-13 05:52:19 -0300 | [diff] [blame] | 508 | u8 i2s_samplerates; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 509 | |
Frank Schaefer | fb91bde | 2013-12-27 00:16:13 -0300 | [diff] [blame] | 510 | if (dev->chip_id == CHIP_ID_EM2870 || |
| 511 | dev->chip_id == CHIP_ID_EM2874 || |
| 512 | dev->chip_id == CHIP_ID_EM28174 || |
| 513 | dev->chip_id == CHIP_ID_EM28178) { |
| 514 | /* Digital only device - don't load any alsa module */ |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 515 | dev->int_audio_type = EM28XX_INT_AUDIO_NONE; |
Frank Schaefer | c587420 | 2014-09-13 05:52:20 -0300 | [diff] [blame] | 516 | dev->usb_audio_type = EM28XX_USB_AUDIO_NONE; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 517 | return 0; |
Frank Schaefer | fb91bde | 2013-12-27 00:16:13 -0300 | [diff] [blame] | 518 | } |
| 519 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 520 | /* See how this device is configured */ |
| 521 | cfg = em28xx_read_reg(dev, EM28XX_R00_CHIPCFG); |
Devin Heitmueller | 1cdc639 | 2009-06-09 23:40:39 -0300 | [diff] [blame] | 522 | em28xx_info("Config register raw data: 0x%02x\n", cfg); |
Frank Schaefer | 43c3ea3 | 2014-09-13 05:56:46 -0300 | [diff] [blame] | 523 | if (cfg < 0) { /* Register read error */ |
| 524 | /* Be conservative */ |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 525 | dev->int_audio_type = EM28XX_INT_AUDIO_AC97; |
Devin Heitmueller | 1cdc639 | 2009-06-09 23:40:39 -0300 | [diff] [blame] | 526 | } else if ((cfg & EM28XX_CHIPCFG_AUDIOMASK) == 0x00) { |
| 527 | /* The device doesn't have vendor audio at all */ |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 528 | dev->int_audio_type = EM28XX_INT_AUDIO_NONE; |
Frank Schaefer | c587420 | 2014-09-13 05:52:20 -0300 | [diff] [blame] | 529 | dev->usb_audio_type = EM28XX_USB_AUDIO_NONE; |
Devin Heitmueller | 1cdc639 | 2009-06-09 23:40:39 -0300 | [diff] [blame] | 530 | return 0; |
Frank Schaefer | 687ff8b | 2013-12-22 11:17:46 -0300 | [diff] [blame] | 531 | } else if ((cfg & EM28XX_CHIPCFG_AUDIOMASK) != EM28XX_CHIPCFG_AC97) { |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 532 | dev->int_audio_type = EM28XX_INT_AUDIO_I2S; |
Frank Schaefer | 687ff8b | 2013-12-22 11:17:46 -0300 | [diff] [blame] | 533 | if (dev->chip_id < CHIP_ID_EM2860 && |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 534 | (cfg & EM28XX_CHIPCFG_AUDIOMASK) == |
Frank Schaefer | 687ff8b | 2013-12-22 11:17:46 -0300 | [diff] [blame] | 535 | EM2820_CHIPCFG_I2S_1_SAMPRATE) |
Frank Schaefer | 60a24ba | 2014-09-13 05:52:19 -0300 | [diff] [blame] | 536 | i2s_samplerates = 1; |
Frank Schaefer | 687ff8b | 2013-12-22 11:17:46 -0300 | [diff] [blame] | 537 | else if (dev->chip_id >= CHIP_ID_EM2860 && |
| 538 | (cfg & EM28XX_CHIPCFG_AUDIOMASK) == |
| 539 | EM2860_CHIPCFG_I2S_5_SAMPRATES) |
Frank Schaefer | 60a24ba | 2014-09-13 05:52:19 -0300 | [diff] [blame] | 540 | i2s_samplerates = 5; |
Frank Schaefer | 687ff8b | 2013-12-22 11:17:46 -0300 | [diff] [blame] | 541 | else |
Frank Schaefer | 60a24ba | 2014-09-13 05:52:19 -0300 | [diff] [blame] | 542 | i2s_samplerates = 3; |
Frank Schaefer | 687ff8b | 2013-12-22 11:17:46 -0300 | [diff] [blame] | 543 | em28xx_info("I2S Audio (%d sample rate(s))\n", |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 544 | i2s_samplerates); |
Devin Heitmueller | de84830 | 2008-12-30 00:17:09 -0300 | [diff] [blame] | 545 | /* Skip the code that does AC97 vendor detection */ |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 546 | dev->audio_mode.ac97 = EM28XX_NO_AC97; |
| 547 | goto init_audio; |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 548 | } else { |
| 549 | dev->int_audio_type = EM28XX_INT_AUDIO_AC97; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | dev->audio_mode.ac97 = EM28XX_AC97_OTHER; |
| 553 | |
| 554 | vid1 = em28xx_read_ac97(dev, AC97_VENDOR_ID1); |
| 555 | if (vid1 < 0) { |
Mauro Carvalho Chehab | 0731160 | 2009-11-27 13:52:54 -0200 | [diff] [blame] | 556 | /* |
| 557 | * Device likely doesn't support AC97 |
| 558 | * Note: (some) em2800 devices without eeprom reports 0x91 on |
| 559 | * CHIPCFG register, even not having an AC97 chip |
| 560 | */ |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 561 | em28xx_warn("AC97 chip type couldn't be determined\n"); |
Mauro Carvalho Chehab | 0731160 | 2009-11-27 13:52:54 -0200 | [diff] [blame] | 562 | dev->audio_mode.ac97 = EM28XX_NO_AC97; |
Frank Schaefer | c587420 | 2014-09-13 05:52:20 -0300 | [diff] [blame] | 563 | if (dev->usb_audio_type == EM28XX_USB_AUDIO_VENDOR) |
| 564 | dev->usb_audio_type = EM28XX_USB_AUDIO_NONE; |
Frank Schaefer | 920f1e4 | 2014-09-13 05:52:21 -0300 | [diff] [blame] | 565 | dev->int_audio_type = EM28XX_INT_AUDIO_NONE; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 566 | goto init_audio; |
| 567 | } |
| 568 | |
| 569 | vid2 = em28xx_read_ac97(dev, AC97_VENDOR_ID2); |
| 570 | if (vid2 < 0) |
| 571 | goto init_audio; |
| 572 | |
Mauro Carvalho Chehab | 16c7bca | 2008-11-20 08:56:19 -0300 | [diff] [blame] | 573 | vid = vid1 << 16 | vid2; |
Mauro Carvalho Chehab | 16c7bca | 2008-11-20 08:56:19 -0300 | [diff] [blame] | 574 | em28xx_warn("AC97 vendor ID = 0x%08x\n", vid); |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 575 | |
| 576 | feat = em28xx_read_ac97(dev, AC97_RESET); |
| 577 | if (feat < 0) |
| 578 | goto init_audio; |
| 579 | |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 580 | em28xx_warn("AC97 features = 0x%04x\n", feat); |
| 581 | |
Mauro Carvalho Chehab | 16c7bca | 2008-11-20 08:56:19 -0300 | [diff] [blame] | 582 | /* Try to identify what audio processor we have */ |
Gareth Williams | 2a5fc87 | 2011-12-20 17:45:18 -0300 | [diff] [blame] | 583 | if (((vid == 0xffffffff) || (vid == 0x83847650)) && (feat == 0x6a90)) |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 584 | dev->audio_mode.ac97 = EM28XX_AC97_EM202; |
Mauro Carvalho Chehab | 209acc0 | 2008-11-20 12:49:33 -0300 | [diff] [blame] | 585 | else if ((vid >> 8) == 0x838476) |
| 586 | dev->audio_mode.ac97 = EM28XX_AC97_SIGMATEL; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 587 | |
| 588 | init_audio: |
| 589 | /* Reports detected AC97 processor */ |
| 590 | switch (dev->audio_mode.ac97) { |
| 591 | case EM28XX_NO_AC97: |
| 592 | em28xx_info("No AC97 audio processor\n"); |
| 593 | break; |
| 594 | case EM28XX_AC97_EM202: |
| 595 | em28xx_info("Empia 202 AC97 audio processor detected\n"); |
| 596 | break; |
Mauro Carvalho Chehab | 209acc0 | 2008-11-20 12:49:33 -0300 | [diff] [blame] | 597 | case EM28XX_AC97_SIGMATEL: |
Frank Schaefer | 60a24ba | 2014-09-13 05:52:19 -0300 | [diff] [blame] | 598 | em28xx_info("Sigmatel audio processor detected (stac 97%02x)\n", |
| 599 | vid & 0xff); |
Mauro Carvalho Chehab | 209acc0 | 2008-11-20 12:49:33 -0300 | [diff] [blame] | 600 | break; |
Mauro Carvalho Chehab | 3564394 | 2008-11-19 12:01:33 -0300 | [diff] [blame] | 601 | case EM28XX_AC97_OTHER: |
| 602 | em28xx_warn("Unknown AC97 audio processor detected!\n"); |
| 603 | break; |
| 604 | default: |
| 605 | break; |
| 606 | } |
| 607 | |
| 608 | return em28xx_audio_analog_set(dev); |
| 609 | } |
| 610 | EXPORT_SYMBOL_GPL(em28xx_audio_setup); |
| 611 | |
Frank Schaefer | 6b8a317 | 2013-12-01 18:06:55 -0300 | [diff] [blame] | 612 | const struct em28xx_led *em28xx_find_led(struct em28xx *dev, |
| 613 | enum em28xx_led_role role) |
| 614 | { |
| 615 | if (dev->board.leds) { |
| 616 | u8 k = 0; |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 617 | |
Frank Schaefer | 6b8a317 | 2013-12-01 18:06:55 -0300 | [diff] [blame] | 618 | while (dev->board.leds[k].role >= 0 && |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 619 | dev->board.leds[k].role < EM28XX_NUM_LED_ROLES) { |
Frank Schaefer | 6b8a317 | 2013-12-01 18:06:55 -0300 | [diff] [blame] | 620 | if (dev->board.leds[k].role == role) |
| 621 | return &dev->board.leds[k]; |
| 622 | k++; |
| 623 | } |
| 624 | } |
| 625 | return NULL; |
| 626 | } |
| 627 | EXPORT_SYMBOL_GPL(em28xx_find_led); |
| 628 | |
Mauro Carvalho Chehab | 3acf280 | 2005-11-08 21:38:27 -0800 | [diff] [blame] | 629 | int em28xx_capture_start(struct em28xx *dev, int start) |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 630 | { |
Mauro Carvalho Chehab | ee6e3a8 | 2008-04-17 21:37:31 -0300 | [diff] [blame] | 631 | int rc; |
Mauro Carvalho Chehab | 54e9254 | 2014-03-04 12:33:45 -0300 | [diff] [blame] | 632 | const struct em28xx_led *led = NULL; |
Devin Heitmueller | ebef13d | 2008-11-12 02:05:24 -0300 | [diff] [blame] | 633 | |
Mauro Carvalho Chehab | fec528b | 2011-07-03 21:05:06 -0300 | [diff] [blame] | 634 | if (dev->chip_id == CHIP_ID_EM2874 || |
| 635 | dev->chip_id == CHIP_ID_EM2884 || |
Antti Palosaari | 9f1d0bd | 2013-02-25 08:19:04 -0300 | [diff] [blame] | 636 | dev->chip_id == CHIP_ID_EM28174 || |
| 637 | dev->chip_id == CHIP_ID_EM28178) { |
Devin Heitmueller | ebef13d | 2008-11-12 02:05:24 -0300 | [diff] [blame] | 638 | /* The Transport Stream Enable Register moved in em2874 */ |
Devin Heitmueller | ebef13d | 2008-11-12 02:05:24 -0300 | [diff] [blame] | 639 | rc = em28xx_write_reg_bits(dev, EM2874_R5F_TS_ENABLE, |
Frank Schaefer | 07e4de3 | 2013-12-01 18:06:51 -0300 | [diff] [blame] | 640 | start ? |
| 641 | EM2874_TS1_CAPTURE_ENABLE : 0x00, |
Devin Heitmueller | ebef13d | 2008-11-12 02:05:24 -0300 | [diff] [blame] | 642 | EM2874_TS1_CAPTURE_ENABLE); |
Frank Schaefer | 07e4de3 | 2013-12-01 18:06:51 -0300 | [diff] [blame] | 643 | } else { |
| 644 | /* FIXME: which is the best order? */ |
| 645 | /* video registers are sampled by VREF */ |
| 646 | rc = em28xx_write_reg_bits(dev, EM28XX_R0C_USBSUSP, |
| 647 | start ? 0x10 : 0x00, 0x10); |
| 648 | if (rc < 0) |
| 649 | return rc; |
| 650 | |
| 651 | if (start) { |
| 652 | if (dev->board.is_webcam) |
| 653 | rc = em28xx_write_reg(dev, 0x13, 0x0c); |
| 654 | |
| 655 | /* Enable video capture */ |
| 656 | rc = em28xx_write_reg(dev, 0x48, 0x00); |
Mauro Carvalho Chehab | 54e9254 | 2014-03-04 12:33:45 -0300 | [diff] [blame] | 657 | if (rc < 0) |
| 658 | return rc; |
Frank Schaefer | 07e4de3 | 2013-12-01 18:06:51 -0300 | [diff] [blame] | 659 | |
| 660 | if (dev->mode == EM28XX_ANALOG_MODE) |
| 661 | rc = em28xx_write_reg(dev, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 662 | EM28XX_R12_VINENABLE, |
| 663 | 0x67); |
Frank Schaefer | 07e4de3 | 2013-12-01 18:06:51 -0300 | [diff] [blame] | 664 | else |
| 665 | rc = em28xx_write_reg(dev, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 666 | EM28XX_R12_VINENABLE, |
| 667 | 0x37); |
Mauro Carvalho Chehab | 54e9254 | 2014-03-04 12:33:45 -0300 | [diff] [blame] | 668 | if (rc < 0) |
| 669 | return rc; |
Frank Schaefer | 07e4de3 | 2013-12-01 18:06:51 -0300 | [diff] [blame] | 670 | |
| 671 | msleep(6); |
| 672 | } else { |
| 673 | /* disable video capture */ |
| 674 | rc = em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x27); |
| 675 | } |
Devin Heitmueller | ebef13d | 2008-11-12 02:05:24 -0300 | [diff] [blame] | 676 | } |
| 677 | |
Mauro Carvalho Chehab | 54e9254 | 2014-03-04 12:33:45 -0300 | [diff] [blame] | 678 | if (dev->mode == EM28XX_ANALOG_MODE) |
Frank Schaefer | 6b8a317 | 2013-12-01 18:06:55 -0300 | [diff] [blame] | 679 | led = em28xx_find_led(dev, EM28XX_LED_ANALOG_CAPTURING); |
Mauro Carvalho Chehab | 54e9254 | 2014-03-04 12:33:45 -0300 | [diff] [blame] | 680 | else |
| 681 | led = em28xx_find_led(dev, EM28XX_LED_DIGITAL_CAPTURING); |
| 682 | |
| 683 | if (led) |
| 684 | em28xx_write_reg_bits(dev, led->gpio_reg, |
| 685 | (!start ^ led->inverted) ? |
| 686 | ~led->gpio_mask : led->gpio_mask, |
| 687 | led->gpio_mask); |
Mauro Carvalho Chehab | ee6e3a8 | 2008-04-17 21:37:31 -0300 | [diff] [blame] | 688 | |
Mauro Carvalho Chehab | ee6e3a8 | 2008-04-17 21:37:31 -0300 | [diff] [blame] | 689 | return rc; |
akpm@osdl.org | a6c2ba2 | 2005-11-08 21:37:07 -0800 | [diff] [blame] | 690 | } |
| 691 | |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 692 | int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio) |
| 693 | { |
| 694 | int rc = 0; |
| 695 | |
| 696 | if (!gpio) |
| 697 | return rc; |
| 698 | |
Mauro Carvalho Chehab | 2fe3e2e | 2008-11-27 09:10:40 -0300 | [diff] [blame] | 699 | if (dev->mode != EM28XX_SUSPEND) { |
| 700 | em28xx_write_reg(dev, 0x48, 0x00); |
| 701 | if (dev->mode == EM28XX_ANALOG_MODE) |
| 702 | em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x67); |
| 703 | else |
| 704 | em28xx_write_reg(dev, EM28XX_R12_VINENABLE, 0x37); |
| 705 | msleep(6); |
| 706 | } |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 707 | |
| 708 | /* Send GPIO reset sequences specified at board entry */ |
| 709 | while (gpio->sleep >= 0) { |
| 710 | if (gpio->reg >= 0) { |
| 711 | rc = em28xx_write_reg_bits(dev, |
| 712 | gpio->reg, |
| 713 | gpio->val, |
| 714 | gpio->mask); |
| 715 | if (rc < 0) |
| 716 | return rc; |
| 717 | } |
| 718 | if (gpio->sleep > 0) |
| 719 | msleep(gpio->sleep); |
| 720 | |
| 721 | gpio++; |
| 722 | } |
| 723 | return rc; |
| 724 | } |
Mauro Carvalho Chehab | fec528b | 2011-07-03 21:05:06 -0300 | [diff] [blame] | 725 | EXPORT_SYMBOL_GPL(em28xx_gpio_set); |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 726 | |
| 727 | int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode) |
| 728 | { |
| 729 | if (dev->mode == set_mode) |
| 730 | return 0; |
| 731 | |
Mauro Carvalho Chehab | 2fe3e2e | 2008-11-27 09:10:40 -0300 | [diff] [blame] | 732 | if (set_mode == EM28XX_SUSPEND) { |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 733 | dev->mode = set_mode; |
Mauro Carvalho Chehab | 2fe3e2e | 2008-11-27 09:10:40 -0300 | [diff] [blame] | 734 | |
| 735 | /* FIXME: add suspend support for ac97 */ |
| 736 | |
| 737 | return em28xx_gpio_set(dev, dev->board.suspend_gpio); |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 738 | } |
| 739 | |
| 740 | dev->mode = set_mode; |
| 741 | |
| 742 | if (dev->mode == EM28XX_DIGITAL_MODE) |
Mauro Carvalho Chehab | f502e86 | 2008-11-27 09:00:00 -0300 | [diff] [blame] | 743 | return em28xx_gpio_set(dev, dev->board.dvb_gpio); |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 744 | else |
Mauro Carvalho Chehab | f502e86 | 2008-11-27 09:00:00 -0300 | [diff] [blame] | 745 | return em28xx_gpio_set(dev, INPUT(dev->ctl_input)->gpio); |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 746 | } |
| 747 | EXPORT_SYMBOL_GPL(em28xx_set_mode); |
| 748 | |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 749 | /* ------------------------------------------------------------------ |
| 750 | URB control |
| 751 | ------------------------------------------------------------------*/ |
| 752 | |
| 753 | /* |
Frank Schaefer | 836e93b | 2012-11-08 14:11:39 -0300 | [diff] [blame] | 754 | * URB completion handler for isoc/bulk transfers |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 755 | */ |
| 756 | static void em28xx_irq_callback(struct urb *urb) |
| 757 | { |
Devin Heitmueller | da52a55 | 2009-09-01 01:19:46 -0300 | [diff] [blame] | 758 | struct em28xx *dev = urb->context; |
Mauro Carvalho Chehab | 00d2e7a | 2011-06-17 20:28:51 -0300 | [diff] [blame] | 759 | int i; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 760 | |
Robert Krakora | aa5a182 | 2009-02-08 13:09:11 -0300 | [diff] [blame] | 761 | switch (urb->status) { |
| 762 | case 0: /* success */ |
| 763 | case -ETIMEDOUT: /* NAK */ |
| 764 | break; |
| 765 | case -ECONNRESET: /* kill */ |
| 766 | case -ENOENT: |
| 767 | case -ESHUTDOWN: |
| 768 | return; |
| 769 | default: /* error */ |
| 770 | em28xx_isocdbg("urb completition error %d.\n", urb->status); |
| 771 | break; |
| 772 | } |
| 773 | |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 774 | /* Copy data from URB */ |
| 775 | spin_lock(&dev->slock); |
Frank Schaefer | 74209dc | 2012-11-08 14:11:37 -0300 | [diff] [blame] | 776 | dev->usb_ctl.urb_data_copy(dev, urb); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 777 | spin_unlock(&dev->slock); |
| 778 | |
| 779 | /* Reset urb buffers */ |
| 780 | for (i = 0; i < urb->number_of_packets; i++) { |
Frank Schaefer | 836e93b | 2012-11-08 14:11:39 -0300 | [diff] [blame] | 781 | /* isoc only (bulk: number_of_packets = 0) */ |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 782 | urb->iso_frame_desc[i].status = 0; |
| 783 | urb->iso_frame_desc[i].actual_length = 0; |
| 784 | } |
| 785 | urb->status = 0; |
| 786 | |
| 787 | urb->status = usb_submit_urb(urb, GFP_ATOMIC); |
| 788 | if (urb->status) { |
Devin Heitmueller | 4269a8e | 2008-04-21 07:01:09 -0300 | [diff] [blame] | 789 | em28xx_isocdbg("urb resubmit failed (error=%i)\n", |
| 790 | urb->status); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 791 | } |
| 792 | } |
| 793 | |
| 794 | /* |
| 795 | * Stop and Deallocate URBs |
| 796 | */ |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 797 | void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode) |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 798 | { |
| 799 | struct urb *urb; |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 800 | struct em28xx_usb_bufs *usb_bufs; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 801 | int i; |
| 802 | |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 803 | em28xx_isocdbg("em28xx: called em28xx_uninit_usb_xfer in mode %d\n", |
| 804 | mode); |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 805 | |
| 806 | if (mode == EM28XX_DIGITAL_MODE) |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 807 | usb_bufs = &dev->usb_ctl.digital_bufs; |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 808 | else |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 809 | usb_bufs = &dev->usb_ctl.analog_bufs; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 810 | |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 811 | for (i = 0; i < usb_bufs->num_bufs; i++) { |
| 812 | urb = usb_bufs->urb[i]; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 813 | if (urb) { |
Robert Krakora | 9c06210 | 2009-01-25 13:08:07 -0300 | [diff] [blame] | 814 | if (!irqs_disabled()) |
| 815 | usb_kill_urb(urb); |
| 816 | else |
| 817 | usb_unlink_urb(urb); |
| 818 | |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 819 | if (usb_bufs->transfer_buffer[i]) { |
Daniel Mack | 997ea58 | 2010-04-12 13:17:25 +0200 | [diff] [blame] | 820 | usb_free_coherent(dev->udev, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 821 | urb->transfer_buffer_length, |
| 822 | usb_bufs->transfer_buffer[i], |
| 823 | urb->transfer_dma); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 824 | } |
| 825 | usb_free_urb(urb); |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 826 | usb_bufs->urb[i] = NULL; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 827 | } |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 828 | usb_bufs->transfer_buffer[i] = NULL; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 829 | } |
| 830 | |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 831 | kfree(usb_bufs->urb); |
| 832 | kfree(usb_bufs->transfer_buffer); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 833 | |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 834 | usb_bufs->urb = NULL; |
| 835 | usb_bufs->transfer_buffer = NULL; |
| 836 | usb_bufs->num_bufs = 0; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 837 | |
| 838 | em28xx_capture_start(dev, 0); |
| 839 | } |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 840 | EXPORT_SYMBOL_GPL(em28xx_uninit_usb_xfer); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 841 | |
| 842 | /* |
Gianluca Gennari | 5f5f147 | 2012-03-22 08:48:17 -0300 | [diff] [blame] | 843 | * Stop URBs |
| 844 | */ |
| 845 | void em28xx_stop_urbs(struct em28xx *dev) |
| 846 | { |
| 847 | int i; |
| 848 | struct urb *urb; |
Frank Schaefer | 74209dc | 2012-11-08 14:11:37 -0300 | [diff] [blame] | 849 | struct em28xx_usb_bufs *isoc_bufs = &dev->usb_ctl.digital_bufs; |
Gianluca Gennari | 5f5f147 | 2012-03-22 08:48:17 -0300 | [diff] [blame] | 850 | |
| 851 | em28xx_isocdbg("em28xx: called em28xx_stop_urbs\n"); |
| 852 | |
| 853 | for (i = 0; i < isoc_bufs->num_bufs; i++) { |
| 854 | urb = isoc_bufs->urb[i]; |
| 855 | if (urb) { |
| 856 | if (!irqs_disabled()) |
| 857 | usb_kill_urb(urb); |
| 858 | else |
| 859 | usb_unlink_urb(urb); |
| 860 | } |
| 861 | } |
| 862 | |
| 863 | em28xx_capture_start(dev, 0); |
| 864 | } |
| 865 | EXPORT_SYMBOL_GPL(em28xx_stop_urbs); |
| 866 | |
| 867 | /* |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 868 | * Allocate URBs |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 869 | */ |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 870 | int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, |
| 871 | int num_bufs, int max_pkt_size, int packet_multiplier) |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 872 | { |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 873 | struct em28xx_usb_bufs *usb_bufs; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 874 | int i; |
| 875 | int sb_size, pipe; |
| 876 | struct urb *urb; |
| 877 | int j, k; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 878 | |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 879 | em28xx_isocdbg("em28xx: called em28xx_alloc_isoc in mode %d\n", mode); |
| 880 | |
Frank Schaefer | c647a91 | 2012-11-08 14:11:52 -0300 | [diff] [blame] | 881 | /* Check mode and if we have an endpoint for the selected |
| 882 | transfer type, select buffer */ |
| 883 | if (mode == EM28XX_DIGITAL_MODE) { |
| 884 | if ((xfer_bulk && !dev->dvb_ep_bulk) || |
| 885 | (!xfer_bulk && !dev->dvb_ep_isoc)) { |
| 886 | em28xx_errdev("no endpoint for DVB mode and transfer type %d\n", |
| 887 | xfer_bulk > 0); |
| 888 | return -EINVAL; |
| 889 | } |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 890 | usb_bufs = &dev->usb_ctl.digital_bufs; |
Frank Schaefer | c647a91 | 2012-11-08 14:11:52 -0300 | [diff] [blame] | 891 | } else if (mode == EM28XX_ANALOG_MODE) { |
| 892 | if ((xfer_bulk && !dev->analog_ep_bulk) || |
| 893 | (!xfer_bulk && !dev->analog_ep_isoc)) { |
| 894 | em28xx_errdev("no endpoint for analog mode and transfer type %d\n", |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 895 | xfer_bulk > 0); |
Frank Schaefer | c647a91 | 2012-11-08 14:11:52 -0300 | [diff] [blame] | 896 | return -EINVAL; |
| 897 | } |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 898 | usb_bufs = &dev->usb_ctl.analog_bufs; |
Frank Schaefer | c647a91 | 2012-11-08 14:11:52 -0300 | [diff] [blame] | 899 | } else { |
| 900 | em28xx_errdev("invalid mode selected\n"); |
| 901 | return -EINVAL; |
| 902 | } |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 903 | |
| 904 | /* De-allocates all pending stuff */ |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 905 | em28xx_uninit_usb_xfer(dev, mode); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 906 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 907 | usb_bufs->num_bufs = num_bufs; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 908 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 909 | usb_bufs->urb = kzalloc(sizeof(void *)*num_bufs, GFP_KERNEL); |
| 910 | if (!usb_bufs->urb) { |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 911 | em28xx_errdev("cannot alloc memory for usb buffers\n"); |
| 912 | return -ENOMEM; |
| 913 | } |
| 914 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 915 | usb_bufs->transfer_buffer = kzalloc(sizeof(void *)*num_bufs, |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 916 | GFP_KERNEL); |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 917 | if (!usb_bufs->transfer_buffer) { |
Filipe Rosset | 42ef463 | 2009-04-09 18:27:12 -0300 | [diff] [blame] | 918 | em28xx_errdev("cannot allocate memory for usb transfer\n"); |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 919 | kfree(usb_bufs->urb); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 920 | return -ENOMEM; |
| 921 | } |
| 922 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 923 | usb_bufs->max_pkt_size = max_pkt_size; |
| 924 | if (xfer_bulk) |
| 925 | usb_bufs->num_packets = 0; |
| 926 | else |
| 927 | usb_bufs->num_packets = packet_multiplier; |
Frank Schaefer | 74209dc | 2012-11-08 14:11:37 -0300 | [diff] [blame] | 928 | dev->usb_ctl.vid_buf = NULL; |
| 929 | dev->usb_ctl.vbi_buf = NULL; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 930 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 931 | sb_size = packet_multiplier * usb_bufs->max_pkt_size; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 932 | |
| 933 | /* allocate urbs and transfer buffers */ |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 934 | for (i = 0; i < usb_bufs->num_bufs; i++) { |
| 935 | urb = usb_alloc_urb(usb_bufs->num_packets, GFP_KERNEL); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 936 | if (!urb) { |
Frank Schaefer | 74209dc | 2012-11-08 14:11:37 -0300 | [diff] [blame] | 937 | em28xx_err("cannot alloc usb_ctl.urb %i\n", i); |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 938 | em28xx_uninit_usb_xfer(dev, mode); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 939 | return -ENOMEM; |
| 940 | } |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 941 | usb_bufs->urb[i] = urb; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 942 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 943 | usb_bufs->transfer_buffer[i] = usb_alloc_coherent(dev->udev, |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 944 | sb_size, GFP_KERNEL, &urb->transfer_dma); |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 945 | if (!usb_bufs->transfer_buffer[i]) { |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 946 | em28xx_err("unable to allocate %i bytes for transfer" |
| 947 | " buffer %i%s\n", |
| 948 | sb_size, i, |
Nicola Soranzo | a1a6ee7 | 2009-02-10 23:28:24 -0300 | [diff] [blame] | 949 | in_interrupt() ? " while in int" : ""); |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 950 | em28xx_uninit_usb_xfer(dev, mode); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 951 | return -ENOMEM; |
| 952 | } |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 953 | memset(usb_bufs->transfer_buffer[i], 0, sb_size); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 954 | |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 955 | if (xfer_bulk) { /* bulk */ |
| 956 | pipe = usb_rcvbulkpipe(dev->udev, |
| 957 | mode == EM28XX_ANALOG_MODE ? |
Frank Schaefer | c647a91 | 2012-11-08 14:11:52 -0300 | [diff] [blame] | 958 | dev->analog_ep_bulk : |
| 959 | dev->dvb_ep_bulk); |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 960 | usb_fill_bulk_urb(urb, dev->udev, pipe, |
| 961 | usb_bufs->transfer_buffer[i], sb_size, |
| 962 | em28xx_irq_callback, dev); |
| 963 | urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; |
| 964 | } else { /* isoc */ |
| 965 | pipe = usb_rcvisocpipe(dev->udev, |
| 966 | mode == EM28XX_ANALOG_MODE ? |
Frank Schaefer | c647a91 | 2012-11-08 14:11:52 -0300 | [diff] [blame] | 967 | dev->analog_ep_isoc : |
| 968 | dev->dvb_ep_isoc); |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 969 | usb_fill_int_urb(urb, dev->udev, pipe, |
| 970 | usb_bufs->transfer_buffer[i], sb_size, |
| 971 | em28xx_irq_callback, dev, 1); |
| 972 | urb->transfer_flags = URB_ISO_ASAP | |
| 973 | URB_NO_TRANSFER_DMA_MAP; |
| 974 | k = 0; |
| 975 | for (j = 0; j < usb_bufs->num_packets; j++) { |
| 976 | urb->iso_frame_desc[j].offset = k; |
| 977 | urb->iso_frame_desc[j].length = |
| 978 | usb_bufs->max_pkt_size; |
| 979 | k += usb_bufs->max_pkt_size; |
| 980 | } |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 981 | } |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 982 | |
| 983 | urb->number_of_packets = usb_bufs->num_packets; |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 984 | } |
| 985 | |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 986 | return 0; |
| 987 | } |
Frank Schaefer | 6ddd89d | 2012-11-08 14:11:41 -0300 | [diff] [blame] | 988 | EXPORT_SYMBOL_GPL(em28xx_alloc_urbs); |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 989 | |
| 990 | /* |
| 991 | * Allocate URBs and start IRQ |
| 992 | */ |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 993 | int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 994 | int xfer_bulk, int num_bufs, int max_pkt_size, |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 995 | int packet_multiplier, |
Mauro Carvalho Chehab | fdf1bc9 | 2014-11-28 08:34:15 -0300 | [diff] [blame] | 996 | int (*urb_data_copy)(struct em28xx *dev, struct urb *urb)) |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 997 | { |
| 998 | struct em28xx_dmaqueue *dma_q = &dev->vidq; |
| 999 | struct em28xx_dmaqueue *vbi_dma_q = &dev->vbiq; |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1000 | struct em28xx_usb_bufs *usb_bufs; |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 1001 | int i; |
| 1002 | int rc; |
| 1003 | int alloc; |
| 1004 | |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1005 | em28xx_isocdbg("em28xx: called em28xx_init_usb_xfer in mode %d\n", |
| 1006 | mode); |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 1007 | |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1008 | dev->usb_ctl.urb_data_copy = urb_data_copy; |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 1009 | |
| 1010 | if (mode == EM28XX_DIGITAL_MODE) { |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1011 | usb_bufs = &dev->usb_ctl.digital_bufs; |
| 1012 | /* no need to free/alloc usb buffers in digital mode */ |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 1013 | alloc = 0; |
| 1014 | } else { |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1015 | usb_bufs = &dev->usb_ctl.analog_bufs; |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 1016 | alloc = 1; |
| 1017 | } |
| 1018 | |
| 1019 | if (alloc) { |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1020 | rc = em28xx_alloc_urbs(dev, mode, xfer_bulk, num_bufs, |
| 1021 | max_pkt_size, packet_multiplier); |
Gianluca Gennari | 86d38d1 | 2012-02-13 13:59:22 -0300 | [diff] [blame] | 1022 | if (rc) |
| 1023 | return rc; |
| 1024 | } |
| 1025 | |
Frank Schaefer | 337fe8d | 2012-11-08 14:11:43 -0300 | [diff] [blame] | 1026 | if (xfer_bulk) { |
| 1027 | rc = usb_clear_halt(dev->udev, usb_bufs->urb[0]->pipe); |
| 1028 | if (rc < 0) { |
| 1029 | em28xx_err("failed to clear USB bulk endpoint stall/halt condition (error=%i)\n", |
| 1030 | rc); |
| 1031 | em28xx_uninit_usb_xfer(dev, mode); |
| 1032 | return rc; |
| 1033 | } |
| 1034 | } |
| 1035 | |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 1036 | init_waitqueue_head(&dma_q->wq); |
Devin Heitmueller | 28abf083 | 2009-09-01 01:54:54 -0300 | [diff] [blame] | 1037 | init_waitqueue_head(&vbi_dma_q->wq); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 1038 | |
Mauro Carvalho Chehab | c67ec53 | 2008-04-17 21:48:00 -0300 | [diff] [blame] | 1039 | em28xx_capture_start(dev, 1); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 1040 | |
| 1041 | /* submit urbs and enables IRQ */ |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1042 | for (i = 0; i < usb_bufs->num_bufs; i++) { |
| 1043 | rc = usb_submit_urb(usb_bufs->urb[i], GFP_ATOMIC); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 1044 | if (rc) { |
| 1045 | em28xx_err("submit of urb %i failed (error=%i)\n", i, |
| 1046 | rc); |
Frank Schaefer | afb177e | 2012-11-08 14:11:40 -0300 | [diff] [blame] | 1047 | em28xx_uninit_usb_xfer(dev, mode); |
Aidan Thornton | 579f72e | 2008-04-17 21:40:16 -0300 | [diff] [blame] | 1048 | return rc; |
| 1049 | } |
| 1050 | } |
| 1051 | |
| 1052 | return 0; |
| 1053 | } |
Frank Schaefer | 057ca0d | 2012-11-08 14:11:42 -0300 | [diff] [blame] | 1054 | EXPORT_SYMBOL_GPL(em28xx_init_usb_xfer); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1055 | |
| 1056 | /* |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1057 | * Device control list |
| 1058 | */ |
| 1059 | |
| 1060 | static LIST_HEAD(em28xx_devlist); |
| 1061 | static DEFINE_MUTEX(em28xx_devlist_mutex); |
| 1062 | |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1063 | /* |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1064 | * Extension interface |
| 1065 | */ |
| 1066 | |
| 1067 | static LIST_HEAD(em28xx_extension_devlist); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1068 | |
| 1069 | int em28xx_register_extension(struct em28xx_ops *ops) |
| 1070 | { |
| 1071 | struct em28xx *dev = NULL; |
| 1072 | |
| 1073 | mutex_lock(&em28xx_devlist_mutex); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1074 | list_add_tail(&ops->next, &em28xx_extension_devlist); |
| 1075 | list_for_each_entry(dev, &em28xx_devlist, devlist) { |
Dan Carpenter | 517521e | 2010-05-22 16:53:27 -0300 | [diff] [blame] | 1076 | ops->init(dev); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1077 | } |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1078 | mutex_unlock(&em28xx_devlist_mutex); |
Mauro Carvalho Chehab | 9634614 | 2013-12-26 12:41:03 -0300 | [diff] [blame] | 1079 | printk(KERN_INFO "em28xx: Registered (%s) extension\n", ops->name); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1080 | return 0; |
| 1081 | } |
| 1082 | EXPORT_SYMBOL(em28xx_register_extension); |
| 1083 | |
| 1084 | void em28xx_unregister_extension(struct em28xx_ops *ops) |
| 1085 | { |
| 1086 | struct em28xx *dev = NULL; |
| 1087 | |
| 1088 | mutex_lock(&em28xx_devlist_mutex); |
| 1089 | list_for_each_entry(dev, &em28xx_devlist, devlist) { |
Dan Carpenter | 517521e | 2010-05-22 16:53:27 -0300 | [diff] [blame] | 1090 | ops->fini(dev); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1091 | } |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1092 | list_del(&ops->next); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1093 | mutex_unlock(&em28xx_devlist_mutex); |
Chris Rankin | 76424a0 | 2011-08-20 08:31:05 -0300 | [diff] [blame] | 1094 | printk(KERN_INFO "Em28xx: Removed (%s) extension\n", ops->name); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1095 | } |
| 1096 | EXPORT_SYMBOL(em28xx_unregister_extension); |
| 1097 | |
| 1098 | void em28xx_init_extension(struct em28xx *dev) |
| 1099 | { |
Chris Rankin | 6c03e38 | 2011-08-20 08:28:17 -0300 | [diff] [blame] | 1100 | const struct em28xx_ops *ops = NULL; |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1101 | |
Mauro Carvalho Chehab | 5013318 | 2010-04-07 17:07:58 -0300 | [diff] [blame] | 1102 | mutex_lock(&em28xx_devlist_mutex); |
Chris Rankin | 6c03e38 | 2011-08-20 08:28:17 -0300 | [diff] [blame] | 1103 | list_add_tail(&dev->devlist, &em28xx_devlist); |
| 1104 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { |
| 1105 | if (ops->init) |
| 1106 | ops->init(dev); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1107 | } |
Mauro Carvalho Chehab | 5013318 | 2010-04-07 17:07:58 -0300 | [diff] [blame] | 1108 | mutex_unlock(&em28xx_devlist_mutex); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1109 | } |
| 1110 | |
| 1111 | void em28xx_close_extension(struct em28xx *dev) |
| 1112 | { |
Chris Rankin | d7222e7 | 2011-09-24 11:02:32 -0300 | [diff] [blame] | 1113 | const struct em28xx_ops *ops = NULL; |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1114 | |
Mauro Carvalho Chehab | 5013318 | 2010-04-07 17:07:58 -0300 | [diff] [blame] | 1115 | mutex_lock(&em28xx_devlist_mutex); |
Chris Rankin | d7222e7 | 2011-09-24 11:02:32 -0300 | [diff] [blame] | 1116 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { |
| 1117 | if (ops->fini) |
| 1118 | ops->fini(dev); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1119 | } |
Chris Rankin | d7222e7 | 2011-09-24 11:02:32 -0300 | [diff] [blame] | 1120 | list_del(&dev->devlist); |
Mauro Carvalho Chehab | 5013318 | 2010-04-07 17:07:58 -0300 | [diff] [blame] | 1121 | mutex_unlock(&em28xx_devlist_mutex); |
Mauro Carvalho Chehab | 1a23f81 | 2008-12-28 22:18:14 -0300 | [diff] [blame] | 1122 | } |
Shuah Khan | 9c669b7 | 2014-02-21 21:50:13 -0300 | [diff] [blame] | 1123 | |
| 1124 | int em28xx_suspend_extension(struct em28xx *dev) |
| 1125 | { |
| 1126 | const struct em28xx_ops *ops = NULL; |
| 1127 | |
Russell King | 522adc7 | 2014-12-20 09:45:31 -0300 | [diff] [blame] | 1128 | em28xx_info("Suspending extensions\n"); |
Shuah Khan | 9c669b7 | 2014-02-21 21:50:13 -0300 | [diff] [blame] | 1129 | mutex_lock(&em28xx_devlist_mutex); |
| 1130 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { |
| 1131 | if (ops->suspend) |
| 1132 | ops->suspend(dev); |
| 1133 | } |
| 1134 | mutex_unlock(&em28xx_devlist_mutex); |
| 1135 | return 0; |
| 1136 | } |
| 1137 | |
| 1138 | int em28xx_resume_extension(struct em28xx *dev) |
| 1139 | { |
| 1140 | const struct em28xx_ops *ops = NULL; |
| 1141 | |
Russell King | 522adc7 | 2014-12-20 09:45:31 -0300 | [diff] [blame] | 1142 | em28xx_info("Resuming extensions\n"); |
Shuah Khan | 9c669b7 | 2014-02-21 21:50:13 -0300 | [diff] [blame] | 1143 | mutex_lock(&em28xx_devlist_mutex); |
| 1144 | list_for_each_entry(ops, &em28xx_extension_devlist, next) { |
| 1145 | if (ops->resume) |
| 1146 | ops->resume(dev); |
| 1147 | } |
| 1148 | mutex_unlock(&em28xx_devlist_mutex); |
| 1149 | return 0; |
| 1150 | } |