diff options
author | Brad Love | 2018-01-04 19:04:11 -0500 |
---|---|---|
committer | Mauro Carvalho Chehab | 2018-03-06 04:19:38 -0500 |
commit | be7fd3c3a8c5e9acbc69f887ca961df5e68cf6f0 (patch) | |
tree | f8719b281c045d879f13a80907d51109b31557d7 /drivers/media/usb/em28xx/em28xx-cards.c | |
parent | 7aa92c4229fefff0cab6930cf977f4a0e3e606d8 (diff) |
media: em28xx: Hauppauge DualHD second tuner functionality
Implement use of secondary TS port on em28xx.
Adds has_dual_ts field, allows secondary demod/tuner to be
added to a single em28xx device.
Hauppauge DualHD models are configured to use this feature.
[mchehab@s-opensource.com: em28xx_duplicate_dev() should be static]
Signed-off-by: Brad Love <brad@nextdimension.cc>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-cards.c')
-rw-r--r-- | drivers/media/usb/em28xx/em28xx-cards.c | 126 |
1 files changed, 124 insertions, 2 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c index 34e16f6ab4ac..7f5d0b28cb8c 100644 --- a/drivers/media/usb/em28xx/em28xx-cards.c +++ b/drivers/media/usb/em28xx/em28xx-cards.c @@ -2402,6 +2402,7 @@ struct em28xx_board em28xx_boards[] = { .tuner_type = TUNER_ABSENT, .tuner_gpio = hauppauge_dualhd_dvb, .has_dvb = 1, + .has_dual_ts = 1, .ir_codes = RC_MAP_HAUPPAUGE, .leds = hauppauge_dualhd_leds, }, @@ -2417,6 +2418,7 @@ struct em28xx_board em28xx_boards[] = { .tuner_type = TUNER_ABSENT, .tuner_gpio = hauppauge_dualhd_dvb, .has_dvb = 1, + .has_dual_ts = 1, .ir_codes = RC_MAP_HAUPPAUGE, .leds = hauppauge_dualhd_leds, }, @@ -3239,7 +3241,8 @@ static void em28xx_release_resources(struct em28xx *dev) em28xx_i2c_unregister(dev, 1); em28xx_i2c_unregister(dev, 0); - usb_put_dev(udev); + if (dev->ts == PRIMARY_TS) + usb_put_dev(udev); /* Mark device as unused */ clear_bit(dev->devno, em28xx_devused); @@ -3432,6 +3435,35 @@ static int em28xx_init_dev(struct em28xx *dev, struct usb_device *udev, return 0; } +int em28xx_duplicate_dev(struct em28xx *dev) +{ + int nr; + struct em28xx *sec_dev = kzalloc(sizeof(*sec_dev), GFP_KERNEL); + + if (sec_dev == NULL) { + dev->dev_next = NULL; + return -ENOMEM; + } + memcpy(sec_dev, dev, sizeof(sizeof(*sec_dev))); + /* Check to see next free device and mark as used */ + do { + nr = find_first_zero_bit(em28xx_devused, EM28XX_MAXBOARDS); + if (nr >= EM28XX_MAXBOARDS) { + /* No free device slots */ + dev_warn(&dev->intf->dev, ": Supports only %i em28xx boards.\n", + EM28XX_MAXBOARDS); + kfree(sec_dev); + dev->dev_next = NULL; + return -ENOMEM; + } + } while (test_and_set_bit(nr, em28xx_devused)); + sec_dev->devno = nr; + snprintf(sec_dev->name, 28, "em28xx #%d", nr); + sec_dev->dev_next = NULL; + dev->dev_next = sec_dev; + return 0; +} + /* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */ #define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03)) @@ -3551,6 +3583,17 @@ static int em28xx_usb_probe(struct usb_interface *interface, } } break; + case 0x85: + if (usb_endpoint_xfer_isoc(e)) { + if (size > dev->dvb_max_pkt_size_isoc_ts2) { + dev->dvb_ep_isoc_ts2 = e->bEndpointAddress; + dev->dvb_max_pkt_size_isoc_ts2 = size; + dev->dvb_alt_isoc = i; + } + } else { + dev->dvb_ep_bulk_ts2 = e->bEndpointAddress; + } + break; } } /* NOTE: @@ -3565,6 +3608,8 @@ static int em28xx_usb_probe(struct usb_interface *interface, * 0x83 isoc* => audio * 0x84 isoc => digital * 0x84 bulk => analog or digital** + * 0x85 isoc => digital TS2 + * 0x85 bulk => digital TS2 * (*: audio should always be isoc) * (**: analog, if ep 0x82 is isoc, otherwise digital) * @@ -3632,6 +3677,10 @@ static int em28xx_usb_probe(struct usb_interface *interface, dev->has_video = has_video; dev->ifnum = ifnum; + dev->ts = PRIMARY_TS; + snprintf(dev->name, 28, "em28xx"); + dev->dev_next = NULL; + if (has_vendor_audio) { dev_err(&interface->dev, "Audio interface %i found (Vendor Class)\n", ifnum); @@ -3711,6 +3760,65 @@ static int em28xx_usb_probe(struct usb_interface *interface, dev->dvb_xfer_bulk ? "bulk" : "isoc"); } + if (dev->board.has_dual_ts && em28xx_duplicate_dev(dev) == 0) { + dev->dev_next->ts = SECONDARY_TS; + dev->dev_next->alt = -1; + dev->dev_next->is_audio_only = has_vendor_audio && + !(has_video || has_dvb); + dev->dev_next->has_video = false; + dev->dev_next->ifnum = ifnum; + dev->dev_next->model = id->driver_info; + + mutex_init(&dev->dev_next->lock); + retval = em28xx_init_dev(dev->dev_next, udev, interface, + dev->dev_next->devno); + if (retval) + goto err_free; + + dev->dev_next->board.ir_codes = NULL; /* No IR for 2nd tuner */ + dev->dev_next->board.has_ir_i2c = 0; /* No IR for 2nd tuner */ + + if (usb_xfer_mode < 0) { + if (dev->dev_next->board.is_webcam) + try_bulk = 1; + else + try_bulk = 0; + } else { + try_bulk = usb_xfer_mode > 0; + } + + /* Select USB transfer types to use */ + if (has_dvb) { + if (!dev->dvb_ep_isoc_ts2 || + (try_bulk && dev->dvb_ep_bulk_ts2)) + dev->dev_next->dvb_xfer_bulk = 1; + dev_info(&dev->intf->dev, "dvb ts2 set to %s mode.\n", + dev->dev_next->dvb_xfer_bulk ? "bulk" : "isoc"); + } + + dev->dev_next->dvb_ep_isoc = dev->dvb_ep_isoc_ts2; + dev->dev_next->dvb_ep_bulk = dev->dvb_ep_bulk_ts2; + dev->dev_next->dvb_max_pkt_size_isoc = dev->dvb_max_pkt_size_isoc_ts2; + dev->dev_next->dvb_alt_isoc = dev->dvb_alt_isoc; + + /* Configuare hardware to support TS2*/ + if (dev->dvb_xfer_bulk) { + /* The ep4 and ep5 are configuared for BULK */ + em28xx_write_reg(dev, 0x0b, 0x96); + mdelay(100); + em28xx_write_reg(dev, 0x0b, 0x80); + mdelay(100); + } else { + /* The ep4 and ep5 are configuared for ISO */ + em28xx_write_reg(dev, 0x0b, 0x96); + mdelay(100); + em28xx_write_reg(dev, 0x0b, 0x82); + mdelay(100); + } + + kref_init(&dev->dev_next->ref); + } + kref_init(&dev->ref); request_modules(dev); @@ -3753,15 +3861,29 @@ static void em28xx_usb_disconnect(struct usb_interface *interface) if (!dev) return; + if (dev->dev_next != NULL) { + dev->dev_next->disconnected = 1; + dev_info(&dev->intf->dev, "Disconnecting %s\n", + dev->dev_next->name); + flush_request_modules(dev->dev_next); + } + dev->disconnected = 1; - dev_err(&dev->intf->dev, "Disconnecting\n"); + dev_err(&dev->intf->dev, "Disconnecting %s\n", dev->name); flush_request_modules(dev); em28xx_close_extension(dev); + if (dev->dev_next != NULL) + em28xx_release_resources(dev->dev_next); em28xx_release_resources(dev); + + if (dev->dev_next != NULL) { + kref_put(&dev->dev_next->ref, em28xx_free_device); + dev->dev_next = NULL; + } kref_put(&dev->ref, em28xx_free_device); } |