Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
hw/dma/pl080: Allow use as embedded-struct device
Create a new include file for the pl081's device struct, type macros, etc, so that it can be instantiated using the "embedded struct" coding style. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
- Loading branch information
Showing
3 changed files
with
65 additions
and
32 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
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 +1,62 @@ | ||
/* | ||
* ARM PrimeCell PL080/PL081 DMA controller | ||
* | ||
* Copyright (c) 2006 CodeSourcery. | ||
* Copyright (c) 2018 Linaro Limited | ||
* Written by Paul Brook, Peter Maydell | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License version 2 or | ||
* (at your option) any later version. | ||
*/ | ||
|
||
/* This is a model of the Arm PrimeCell PL080/PL081 DMA controller: | ||
* The PL080 TRM is: | ||
* http://infocenter.arm.com/help/topic/com.arm.doc.ddi0196g/DDI0196.pdf | ||
* and the PL081 TRM is: | ||
* http://infocenter.arm.com/help/topic/com.arm.doc.ddi0218e/DDI0218.pdf | ||
* | ||
* QEMU interface: | ||
* + sysbus IRQ: DMACINTR combined interrupt line | ||
* + sysbus MMIO region 0: MemoryRegion for the device's registers | ||
*/ | ||
|
||
#ifndef HW_DMA_PL080_H | ||
#define HW_DMA_PL080_H | ||
|
||
#include "hw/sysbus.h" | ||
|
||
#define PL080_MAX_CHANNELS 8 | ||
|
||
typedef struct { | ||
uint32_t src; | ||
uint32_t dest; | ||
uint32_t lli; | ||
uint32_t ctrl; | ||
uint32_t conf; | ||
} pl080_channel; | ||
|
||
#define TYPE_PL080 "pl080" | ||
#define TYPE_PL081 "pl081" | ||
#define PL080(obj) OBJECT_CHECK(PL080State, (obj), TYPE_PL080) | ||
|
||
typedef struct PL080State { | ||
SysBusDevice parent_obj; | ||
|
||
MemoryRegion iomem; | ||
uint8_t tc_int; | ||
uint8_t tc_mask; | ||
uint8_t err_int; | ||
uint8_t err_mask; | ||
uint32_t conf; | ||
uint32_t sync; | ||
uint32_t req_single; | ||
uint32_t req_burst; | ||
pl080_channel chan[PL080_MAX_CHANNELS]; | ||
int nchannels; | ||
/* Flag to avoid recursive DMA invocations. */ | ||
int running; | ||
qemu_irq irq; | ||
} PL080State; | ||
|
||
#endif |