VIA and WonderMedia Systems-on-Chip feature a standard i8042-compatible keyboard and mouse controller. This adds necessary glue to enable use of the standard driver with these systems. Signed-off-by: Alexey Charkov <alchark@xxxxxxxxx> --- Please review and state whether this could be acceptable for a merge to mainline in the coming 2.6.37 window. If possible, I would deeply appreciate a merge to a relevant git tree for integration prior to asking Linus to pull the changes. I could rebase the code if needed, currently this is against Linus' master branch. This patch relies on the basic architecture support for VT8500/WM8505 to be in place, as introduced by PATCH 1/6 in this series. Due credits go to the community for providing feedback, advice and testing. NB: The development is being done at: http://gitorious.org/linux-on-via-vt8500/vt8500-kernel Relevant code may be pulled from a git tree in there. drivers/input/serio/Kconfig | 3 +- drivers/input/serio/i8042-vt8500.h | 71 ++++++++++++++++++++++++++++++++++++ drivers/input/serio/i8042.h | 2 + 3 files changed, 75 insertions(+), 1 deletions(-) create mode 100644 drivers/input/serio/i8042-vt8500.h diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 3bfe8fa..2b86774 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -21,7 +21,8 @@ if SERIO config SERIO_I8042 tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86 default y - depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \ + depends on !PARISC && \ + (!ARM || ARCH_SHARK || ARCH_VT8500 || FOOTBRIDGE_HOST) && \ (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN help i8042 is the chip over which the standard AT keyboard and PS/2 diff --git a/drivers/input/serio/i8042-vt8500.h b/drivers/input/serio/i8042-vt8500.h new file mode 100644 index 0000000..d30df82 --- /dev/null +++ b/drivers/input/serio/i8042-vt8500.h @@ -0,0 +1,71 @@ +#ifndef _I8042_VT8500_H +#define _I8042_VT8500_H + +#include <mach/irqs.h> +#include <mach/vt8500.h> + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ + +static void __iomem *regbase; + +/* + * Names. + */ + +#define I8042_KBD_PHYS_DESC "vt8500ps2/serio0" +#define I8042_AUX_PHYS_DESC "vt8500ps2/serio1" +#define I8042_MUX_PHYS_DESC "vt8500ps2/serio%d" + +/* + * IRQs. + */ + +#define I8042_KBD_IRQ IRQ_PS2KBD +#define I8042_AUX_IRQ IRQ_PS2MOUSE + + +/* + * Register numbers. + */ + +#define I8042_COMMAND_REG (regbase + 0x4) +#define I8042_STATUS_REG (regbase + 0x4) +#define I8042_DATA_REG (regbase + 0x0) + +static inline int i8042_read_data(void) +{ + return readl(I8042_DATA_REG); +} + +static inline int i8042_read_status(void) +{ + return readl(I8042_STATUS_REG); +} + +static inline void i8042_write_data(int val) +{ + writel(val, I8042_DATA_REG); +} + +static inline void i8042_write_command(int val) +{ + writel(val, I8042_COMMAND_REG); +} + +static inline int i8042_platform_init(void) +{ + i8042_reset = 1; + regbase = ioremap(VT8500_PS2_BASE, SZ_1K); + return 0; +} + +static inline void i8042_platform_exit(void) +{ + iounmap(regbase); +} + +#endif /* _I8042_VT8500_H */ diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h index cbc1beb..bdb2aeb 100644 --- a/drivers/input/serio/i8042.h +++ b/drivers/input/serio/i8042.h @@ -16,6 +16,8 @@ #if defined(CONFIG_MACH_JAZZ) #include "i8042-jazzio.h" +#elif defined(CONFIG_ARCH_VT8500) +#include "i8042-vt8500.h" #elif defined(CONFIG_SGI_HAS_I8042) #include "i8042-ip22io.h" #elif defined(CONFIG_SNI_RM) -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
