diff options
author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 11:13:30 -0400 |
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committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 15:36:22 -0400 |
commit | b285192a43f0432d82c2c10974204e78af0da596 (patch) | |
tree | 618aa87e760c9c949eca9e4df6ae0eeffa11dcfc /drivers/media/pci/cx23885/cx23885-ir.c | |
parent | 68de959f773a1d49096835c411390bceff5d1549 (diff) |
[media] rename most media/video pci drivers to media/pci
Rename all PCI drivers with their own directory under
drivers/media/video into drivers/media/pci and update the
building system.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/pci/cx23885/cx23885-ir.c')
-rw-r--r-- | drivers/media/pci/cx23885/cx23885-ir.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/drivers/media/pci/cx23885/cx23885-ir.c b/drivers/media/pci/cx23885/cx23885-ir.c new file mode 100644 index 000000000000..7125247dd255 --- /dev/null +++ b/drivers/media/pci/cx23885/cx23885-ir.c | |||
@@ -0,0 +1,117 @@ | |||
1 | /* | ||
2 | * Driver for the Conexant CX23885/7/8 PCIe bridge | ||
3 | * | ||
4 | * Infrared device support routines - non-input, non-vl42_subdev routines | ||
5 | * | ||
6 | * Copyright (C) 2009 Andy Walls <awalls@md.metrocast.net> | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU General Public License | ||
10 | * as published by the Free Software Foundation; either version 2 | ||
11 | * of the License, or (at your option) any later version. | ||
12 | * | ||
13 | * This program is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 | * GNU General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU General Public License | ||
19 | * along with this program; if not, write to the Free Software | ||
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
21 | * 02110-1301, USA. | ||
22 | */ | ||
23 | |||
24 | #include <media/v4l2-device.h> | ||
25 | |||
26 | #include "cx23885.h" | ||
27 | #include "cx23885-input.h" | ||
28 | |||
29 | #define CX23885_IR_RX_FIFO_SERVICE_REQ 0 | ||
30 | #define CX23885_IR_RX_END_OF_RX_DETECTED 1 | ||
31 | #define CX23885_IR_RX_HW_FIFO_OVERRUN 2 | ||
32 | #define CX23885_IR_RX_SW_FIFO_OVERRUN 3 | ||
33 | |||
34 | #define CX23885_IR_TX_FIFO_SERVICE_REQ 0 | ||
35 | |||
36 | |||
37 | void cx23885_ir_rx_work_handler(struct work_struct *work) | ||
38 | { | ||
39 | struct cx23885_dev *dev = | ||
40 | container_of(work, struct cx23885_dev, ir_rx_work); | ||
41 | u32 events = 0; | ||
42 | unsigned long *notifications = &dev->ir_rx_notifications; | ||
43 | |||
44 | if (test_and_clear_bit(CX23885_IR_RX_SW_FIFO_OVERRUN, notifications)) | ||
45 | events |= V4L2_SUBDEV_IR_RX_SW_FIFO_OVERRUN; | ||
46 | if (test_and_clear_bit(CX23885_IR_RX_HW_FIFO_OVERRUN, notifications)) | ||
47 | events |= V4L2_SUBDEV_IR_RX_HW_FIFO_OVERRUN; | ||
48 | if (test_and_clear_bit(CX23885_IR_RX_END_OF_RX_DETECTED, notifications)) | ||
49 | events |= V4L2_SUBDEV_IR_RX_END_OF_RX_DETECTED; | ||
50 | if (test_and_clear_bit(CX23885_IR_RX_FIFO_SERVICE_REQ, notifications)) | ||
51 | events |= V4L2_SUBDEV_IR_RX_FIFO_SERVICE_REQ; | ||
52 | |||
53 | if (events == 0) | ||
54 | return; | ||
55 | |||
56 | if (dev->kernel_ir) | ||
57 | cx23885_input_rx_work_handler(dev, events); | ||
58 | } | ||
59 | |||
60 | void cx23885_ir_tx_work_handler(struct work_struct *work) | ||
61 | { | ||
62 | struct cx23885_dev *dev = | ||
63 | container_of(work, struct cx23885_dev, ir_tx_work); | ||
64 | u32 events = 0; | ||
65 | unsigned long *notifications = &dev->ir_tx_notifications; | ||
66 | |||
67 | if (test_and_clear_bit(CX23885_IR_TX_FIFO_SERVICE_REQ, notifications)) | ||
68 | events |= V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ; | ||
69 | |||
70 | if (events == 0) | ||
71 | return; | ||
72 | |||
73 | } | ||
74 | |||
75 | /* Possibly called in an IRQ context */ | ||
76 | void cx23885_ir_rx_v4l2_dev_notify(struct v4l2_subdev *sd, u32 events) | ||
77 | { | ||
78 | struct cx23885_dev *dev = to_cx23885(sd->v4l2_dev); | ||
79 | unsigned long *notifications = &dev->ir_rx_notifications; | ||
80 | |||
81 | if (events & V4L2_SUBDEV_IR_RX_FIFO_SERVICE_REQ) | ||
82 | set_bit(CX23885_IR_RX_FIFO_SERVICE_REQ, notifications); | ||
83 | if (events & V4L2_SUBDEV_IR_RX_END_OF_RX_DETECTED) | ||
84 | set_bit(CX23885_IR_RX_END_OF_RX_DETECTED, notifications); | ||
85 | if (events & V4L2_SUBDEV_IR_RX_HW_FIFO_OVERRUN) | ||
86 | set_bit(CX23885_IR_RX_HW_FIFO_OVERRUN, notifications); | ||
87 | if (events & V4L2_SUBDEV_IR_RX_SW_FIFO_OVERRUN) | ||
88 | set_bit(CX23885_IR_RX_SW_FIFO_OVERRUN, notifications); | ||
89 | |||
90 | /* | ||
91 | * For the integrated AV core, we are already in a workqueue context. | ||
92 | * For the CX23888 integrated IR, we are in an interrupt context. | ||
93 | */ | ||
94 | if (sd == dev->sd_cx25840) | ||
95 | cx23885_ir_rx_work_handler(&dev->ir_rx_work); | ||
96 | else | ||
97 | schedule_work(&dev->ir_rx_work); | ||
98 | } | ||
99 | |||
100 | /* Possibly called in an IRQ context */ | ||
101 | void cx23885_ir_tx_v4l2_dev_notify(struct v4l2_subdev *sd, u32 events) | ||
102 | { | ||
103 | struct cx23885_dev *dev = to_cx23885(sd->v4l2_dev); | ||
104 | unsigned long *notifications = &dev->ir_tx_notifications; | ||
105 | |||
106 | if (events & V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ) | ||
107 | set_bit(CX23885_IR_TX_FIFO_SERVICE_REQ, notifications); | ||
108 | |||
109 | /* | ||
110 | * For the integrated AV core, we are already in a workqueue context. | ||
111 | * For the CX23888 integrated IR, we are in an interrupt context. | ||
112 | */ | ||
113 | if (sd == dev->sd_cx25840) | ||
114 | cx23885_ir_tx_work_handler(&dev->ir_tx_work); | ||
115 | else | ||
116 | schedule_work(&dev->ir_tx_work); | ||
117 | } | ||