/* * linux/drivers/video/bt455.h * * Copyright 2003 Thiemo Seufer * Copyright 2016 Maciej W. Rozycki * * This file is subject to the terms and conditions of the GNU General * Public License. See the file COPYING in the main directory of this * archive for more details. */ #include /* * Bt455 byte-wide registers, 32-bit aligned. */ struct bt455_regs { volatile u8 addr_cmap; u8 pad0[3]; volatile u8 addr_cmap_data; u8 pad1[3]; volatile u8 addr_clr; u8 pad2[3]; volatile u8 addr_ovly; u8 pad3[3]; }; static inline void bt455_select_reg(struct bt455_regs *regs, int ir) { mb(); regs->addr_cmap = ir & 0x0f; } static inline void bt455_reset_reg(struct bt455_regs *regs) { mb(); regs->addr_clr = 0; } /* * Read/write to a Bt455 color map register. */ static inline void bt455_read_cmap_next(struct bt455_regs *regs, u8 *grey) { mb(); regs->addr_cmap_data; rmb(); *grey = regs->addr_cmap_data & 0xf; rmb(); regs->addr_cmap_data; } static inline void bt455_write_cmap_next(struct bt455_regs *regs, u8 grey) { wmb(); regs->addr_cmap_data = 0x0; wmb(); regs->addr_cmap_data = grey & 0xf; wmb(); regs->addr_cmap_data = 0x0; } static inline void bt455_write_ovly_next(struct bt455_regs *regs, u8 grey) { wmb(); regs->addr_ovly = 0x0; wmb(); regs->addr_ovly = grey & 0xf; wmb(); regs->addr_ovly = 0x0; } static inline void bt455_read_cmap_entry(struct bt455_regs *regs, int cr, u8 *grey) { bt455_select_reg(regs, cr); bt455_read_cmap_next(regs, grey); } static inline void bt455_write_cmap_entry(struct bt455_regs *regs, int cr, u8 grey) { bt455_select_reg(regs, cr); bt455_write_cmap_next(regs, grey); } static inline void bt455_write_ovly_entry(struct bt455_regs *regs, u8 grey) { bt455_reset_reg(regs); bt455_write_ovly_next(regs, grey); } git.cgi/linux/net-next.git/tree/sound/soc/codecs/max9860.h?h=nds-private-remove&id=f9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b'>treecommitdiff
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-30 15:47:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-30 15:47:19 -0800
commitf9a42e0d58cf0fe3d902e63d4582f2ea4cd2bb8b (patch)
tree4078d3ae27d4ebb85bdcd4d84e9b9a4d059f22bb /sound/soc/codecs/max9860.h
parent751321b3dd5040dc5be19bd23f985e80c914621a (diff)
parent54791b276b4000b307339f269d3bf7db877d536f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller: "Several small bug fixes and tidies, along with a fix for non-resumable memory errors triggered by userspace" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Handle PIO & MEM non-resumable errors. sparc64: Zero pages on allocation for mondo and error queues. sparc: Fixed typo in sstate.c. Replaced panicing with panicking sparc: use symbolic names for tsb indexing
Diffstat (limited to 'sound/soc/codecs/max9860.h')
-remove&id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>Diffstat (limited to 'sound/soc/codecs/adau1977.h')