mirror of
https://github.com/torvalds/linux.git
synced 2025-12-07 20:06:24 +00:00
e6ab504633
Move the gpib drivers out of staging and into the "real" part of the kernel. This entails: - Remove the gpib Kconfig menu and Makefile build rule from staging. - Remove gpib/uapi from the header file search path in subdir-ccflags of the gpib Makefile - move the gpib/uapi files to include/uapi/linux - Move the gpib tree out of staging to drivers. - Remove the word "Linux" from the gpib Kconfig file. - Add the gpib Kconfig menu and Makefile build rule to drivers Signed-off-by: Dave Penkler <dpenkler@gmail.com> Link: https://patch.msgid.link/20251117144021.23569-5-dpenkler@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
/***************************************************************************
|
|
* Registers and bits for amccs5933 pci chip
|
|
* copyright : (C) 2002 by Frank Mori Hess
|
|
***************************************************************************/
|
|
|
|
// register offsets
|
|
enum {
|
|
MBEF_REG = 0x34, // mailbux empty/full
|
|
INTCSR_REG = 0x38, // interrupt control and status
|
|
BMCSR_REG = 0x3c, // bus master control and status
|
|
};
|
|
|
|
// incoming mailbox 0-3 register offsets
|
|
extern inline int INCOMING_MAILBOX_REG(unsigned int mailbox)
|
|
{
|
|
return (0x10 + 4 * mailbox);
|
|
};
|
|
|
|
// bit definitions
|
|
|
|
// INTCSR bits
|
|
enum {
|
|
OUTBOX_EMPTY_INTR_BIT = 0x10, // enable outbox empty interrupt
|
|
INBOX_FULL_INTR_BIT = 0x1000, // enable inbox full interrupt
|
|
INBOX_INTR_CS_BIT = 0x20000, // read, or write clear inbox full interrupt
|
|
INTR_ASSERTED_BIT = 0x800000, // read only, interrupt asserted
|
|
};
|
|
|
|
// select byte 0 to 3 of incoming mailbox
|
|
extern inline int INBOX_BYTE_BITS(unsigned int byte)
|
|
{
|
|
return (byte & 0x3) << 8;
|
|
};
|
|
|
|
// select incoming mailbox 0 to 3
|
|
extern inline int INBOX_SELECT_BITS(unsigned int mailbox)
|
|
{
|
|
return (mailbox & 0x3) << 10;
|
|
};
|
|
|
|
// select byte 0 to 3 of outgoing mailbox
|
|
extern inline int OUTBOX_BYTE_BITS(unsigned int byte)
|
|
{
|
|
return (byte & 0x3);
|
|
};
|
|
|
|
// select outgoing mailbox 0 to 3
|
|
extern inline int OUTBOX_SELECT_BITS(unsigned int mailbox)
|
|
{
|
|
return (mailbox & 0x3) << 2;
|
|
};
|
|
|
|
// BMCSR bits
|
|
enum {
|
|
MBOX_FLAGS_RESET_BIT = 0x08000000, // resets mailbox empty/full flags
|
|
};
|
|
|