Messages in this thread | | | Subject | [PATCH] sh: maple: add support for Visual Memory Card devices, and make consequential changes to maple input drivers - 0/3 - v5 | From | Adrian McMenamin <> | Date | Sun, 08 Feb 2009 19:41:09 +0000 |
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This series of patches adds support for the Dreamcast Visual Memory Unit, reworking the maple bus code to ensure it supports asynchronous reads and writes. A consequential amendment to the keyboard and joystick drivers are also included.
This version (v5) fixes a memory leak in the VMU code that was present when read or write requests timed out in v4. It also adds the joystick fix.
The VMU is a 'smart' flash chip where access is controlled by a microcontroller so that, for instance, flash erases appear to be transparent to the end user. The VMU does, however, show typical flash-type behaviour (eg phased writes) and the MTD layer and the chip work well together (eg in the way they handle apparent hotplug events during a block write).
This version tidies up some style issues raised with version 2.
Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> --- drivers/input/joystick/maplecontrol.c | 4 +- drivers/input/keyboard/maple_keyb.c | 40 +- drivers/mtd/maps/Kconfig | 12 +- drivers/mtd/maps/Makefile | 1 + drivers/mtd/maps/vmu-flash.c | 827 +++++++++++++++++++++++++++++++++ drivers/sh/maple/maple.c | 463 ++++++++++--------- include/linux/maple.h | 62 ++- 7 files changed, 1142 insertions(+), 267 deletions(-)
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