forked from torvalds/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
media: cec-pin.h: move non-kAPI parts into cec-pin-priv.h
The kAPI cec-pin.h header also defined data structures that did not belong here but were private to the CEC core code. Split that part off into a cec-pin-priv.h header. Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
- Loading branch information
Showing
4 changed files
with
135 additions
and
107 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| /* | ||
| * cec-pin-priv.h - internal cec-pin header | ||
| * | ||
| * Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved. | ||
| * | ||
| * This program is free software; you may redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; version 2 of the License. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | ||
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | ||
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
|
|
||
| #ifndef LINUX_CEC_PIN_PRIV_H | ||
| #define LINUX_CEC_PIN_PRIV_H | ||
|
|
||
| #include <linux/types.h> | ||
| #include <linux/atomic.h> | ||
| #include <media/cec-pin.h> | ||
|
|
||
| enum cec_pin_state { | ||
| /* CEC is off */ | ||
| CEC_ST_OFF, | ||
| /* CEC is idle, waiting for Rx or Tx */ | ||
| CEC_ST_IDLE, | ||
|
|
||
| /* Tx states */ | ||
|
|
||
| /* Pending Tx, waiting for Signal Free Time to expire */ | ||
| CEC_ST_TX_WAIT, | ||
| /* Low-drive was detected, wait for bus to go high */ | ||
| CEC_ST_TX_WAIT_FOR_HIGH, | ||
| /* Drive CEC low for the start bit */ | ||
| CEC_ST_TX_START_BIT_LOW, | ||
| /* Drive CEC high for the start bit */ | ||
| CEC_ST_TX_START_BIT_HIGH, | ||
| /* Drive CEC low for the 0 bit */ | ||
| CEC_ST_TX_DATA_BIT_0_LOW, | ||
| /* Drive CEC high for the 0 bit */ | ||
| CEC_ST_TX_DATA_BIT_0_HIGH, | ||
| /* Drive CEC low for the 1 bit */ | ||
| CEC_ST_TX_DATA_BIT_1_LOW, | ||
| /* Drive CEC high for the 1 bit */ | ||
| CEC_ST_TX_DATA_BIT_1_HIGH, | ||
| /* | ||
| * Wait for start of sample time to check for Ack bit or first | ||
| * four initiator bits to check for Arbitration Lost. | ||
| */ | ||
| CEC_ST_TX_DATA_BIT_1_HIGH_PRE_SAMPLE, | ||
| /* Wait for end of bit period after sampling */ | ||
| CEC_ST_TX_DATA_BIT_1_HIGH_POST_SAMPLE, | ||
|
|
||
| /* Rx states */ | ||
|
|
||
| /* Start bit low detected */ | ||
| CEC_ST_RX_START_BIT_LOW, | ||
| /* Start bit high detected */ | ||
| CEC_ST_RX_START_BIT_HIGH, | ||
| /* Wait for bit sample time */ | ||
| CEC_ST_RX_DATA_SAMPLE, | ||
| /* Wait for earliest end of bit period after sampling */ | ||
| CEC_ST_RX_DATA_POST_SAMPLE, | ||
| /* Wait for CEC to go high (i.e. end of bit period */ | ||
| CEC_ST_RX_DATA_HIGH, | ||
| /* Drive CEC low to send 0 Ack bit */ | ||
| CEC_ST_RX_ACK_LOW, | ||
| /* End of 0 Ack time, wait for earliest end of bit period */ | ||
| CEC_ST_RX_ACK_LOW_POST, | ||
| /* Wait for CEC to go high (i.e. end of bit period */ | ||
| CEC_ST_RX_ACK_HIGH_POST, | ||
| /* Wait for earliest end of bit period and end of message */ | ||
| CEC_ST_RX_ACK_FINISH, | ||
|
|
||
| /* Start low drive */ | ||
| CEC_ST_LOW_DRIVE, | ||
| /* Monitor pin using interrupts */ | ||
| CEC_ST_RX_IRQ, | ||
|
|
||
| /* Total number of pin states */ | ||
| CEC_PIN_STATES | ||
| }; | ||
|
|
||
| #define CEC_NUM_PIN_EVENTS 128 | ||
|
|
||
| #define CEC_PIN_IRQ_UNCHANGED 0 | ||
| #define CEC_PIN_IRQ_DISABLE 1 | ||
| #define CEC_PIN_IRQ_ENABLE 2 | ||
|
|
||
| struct cec_pin { | ||
| struct cec_adapter *adap; | ||
| const struct cec_pin_ops *ops; | ||
| struct task_struct *kthread; | ||
| wait_queue_head_t kthread_waitq; | ||
| struct hrtimer timer; | ||
| ktime_t ts; | ||
| unsigned int wait_usecs; | ||
| u16 la_mask; | ||
| bool enabled; | ||
| bool monitor_all; | ||
| bool rx_eom; | ||
| bool enable_irq_failed; | ||
| enum cec_pin_state state; | ||
| struct cec_msg tx_msg; | ||
| u32 tx_bit; | ||
| bool tx_nacked; | ||
| u32 tx_signal_free_time; | ||
| struct cec_msg rx_msg; | ||
| u32 rx_bit; | ||
|
|
||
| struct cec_msg work_rx_msg; | ||
| u8 work_tx_status; | ||
| ktime_t work_tx_ts; | ||
| atomic_t work_irq_change; | ||
| atomic_t work_pin_events; | ||
| unsigned int work_pin_events_wr; | ||
| unsigned int work_pin_events_rd; | ||
| ktime_t work_pin_ts[CEC_NUM_PIN_EVENTS]; | ||
| bool work_pin_is_high[CEC_NUM_PIN_EVENTS]; | ||
| ktime_t timer_ts; | ||
| u32 timer_cnt; | ||
| u32 timer_100ms_overruns; | ||
| u32 timer_300ms_overruns; | ||
| u32 timer_max_overrun; | ||
| u32 timer_sum_overrun; | ||
| }; | ||
|
|
||
| #endif |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters