diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-omap/mailbox.c | 86 | ||||
| -rw-r--r-- | arch/arm/plat-omap/mailbox.h | 100 |
2 files changed, 85 insertions, 101 deletions
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c index 75ede474d844..fcac60dedc8a 100644 --- a/arch/arm/plat-omap/mailbox.c +++ b/arch/arm/plat-omap/mailbox.c @@ -31,11 +31,95 @@ #include <linux/delay.h> #include <linux/io.h> #include <mach/mailbox.h> -#include "mailbox.h" static struct omap_mbox *mboxes; static DEFINE_RWLOCK(mboxes_lock); +/* + * Mailbox sequence bit API + */ +#if defined(CONFIG_ARCH_OMAP1) +# define MBOX_USE_SEQ_BIT +#elif defined(CONFIG_ARCH_OMAP2) +# define MBOX_USE_SEQ_BIT +#endif + +#ifdef MBOX_USE_SEQ_BIT +/* seq_rcv should be initialized with any value other than + * 0 and 1 << 31, to allow either value for the first + * message. */ +static inline void mbox_seq_init(struct omap_mbox *mbox) +{ + /* any value other than 0 and 1 << 31 */ + mbox->seq_rcv = 0xffffffff; +} + +static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg) +{ + /* add seq_snd to msg */ + *msg = (*msg & 0x7fffffff) | mbox->seq_snd; + /* flip seq_snd */ + mbox->seq_snd ^= 1 << 31; +} + +static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg) +{ + mbox_msg_t seq = msg & (1 << 31); + if (seq == mbox->seq_rcv) + return -1; + mbox->seq_rcv = seq; + return 0; +} +#else +static inline void mbox_seq_init(struct omap_mbox *mbox) +{ +} +static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg) +{ +} +static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg) +{ + return 0; +} +#endif + +/* Mailbox FIFO handle functions */ +static inline mbox_msg_t mbox_fifo_read(struct omap_mbox *mbox) +{ + return mbox->ops->fifo_read(mbox); +} +static inline void mbox_fifo_write(struct omap_mbox *mbox, mbox_msg_t msg) +{ + mbox->ops->fifo_write(mbox, msg); +} +static inline int mbox_fifo_empty(struct omap_mbox *mbox) +{ + return mbox->ops->fifo_empty(mbox); +} +static inline int mbox_fifo_full(struct omap_mbox *mbox) +{ + return mbox->ops->fifo_full(mbox); +} + +/* Mailbox IRQ handle functions */ +static inline void enable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) +{ + mbox->ops->enable_irq(mbox, irq); +} +static inline void disable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) +{ + mbox->ops->disable_irq(mbox, irq); +} +static inline void ack_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) +{ + if (mbox->ops->ack_irq) + mbox->ops->ack_irq(mbox, irq); +} +static inline int is_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) +{ + return mbox->ops->is_irq(mbox, irq); +} + /* Mailbox Sequence Bit function */ void omap_mbox_init_seq(struct omap_mbox *mbox) { diff --git a/arch/arm/plat-omap/mailbox.h b/arch/arm/plat-omap/mailbox.h deleted file mode 100644 index 67c6740b8ad5..000000000000 --- a/arch/arm/plat-omap/mailbox.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Mailbox internal functions - * - * Copyright (C) 2006 Nokia Corporation - * Written by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> - * - * 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. - */ - -#ifndef __ARCH_ARM_PLAT_MAILBOX_H -#define __ARCH_ARM_PLAT_MAILBOX_H - -/* - * Mailbox sequence bit API - */ -#if defined(CONFIG_ARCH_OMAP1) -# define MBOX_USE_SEQ_BIT -#elif defined(CONFIG_ARCH_OMAP2) -# define MBOX_USE_SEQ_BIT -#endif - -#ifdef MBOX_USE_SEQ_BIT -/* seq_rcv should be initialized with any value other than - * 0 and 1 << 31, to allow either value for the first - * message. */ -static inline void mbox_seq_init(struct omap_mbox *mbox) -{ - /* any value other than 0 and 1 << 31 */ - mbox->seq_rcv = 0xffffffff; -} - -static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg) -{ - /* add seq_snd to msg */ - *msg = (*msg & 0x7fffffff) | mbox->seq_snd; - /* flip seq_snd */ - mbox->seq_snd ^= 1 << 31; -} - -static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg) -{ - mbox_msg_t seq = msg & (1 << 31); - if (seq == mbox->seq_rcv) - return -1; - mbox->seq_rcv = seq; - return 0; -} -#else -static inline void mbox_seq_init(struct omap_mbox *mbox) -{ -} -static inline void mbox_seq_toggle(struct omap_mbox *mbox, mbox_msg_t * msg) -{ -} -static inline int mbox_seq_test(struct omap_mbox *mbox, mbox_msg_t msg) -{ - return 0; -} -#endif - -/* Mailbox FIFO handle functions */ -static inline mbox_msg_t mbox_fifo_read(struct omap_mbox *mbox) -{ - return mbox->ops->fifo_read(mbox); -} -static inline void mbox_fifo_write(struct omap_mbox *mbox, mbox_msg_t msg) -{ - mbox->ops->fifo_write(mbox, msg); -} -static inline int mbox_fifo_empty(struct omap_mbox *mbox) -{ - return mbox->ops->fifo_empty(mbox); -} -static inline int mbox_fifo_full(struct omap_mbox *mbox) -{ - return mbox->ops->fifo_full(mbox); -} - -/* Mailbox IRQ handle functions */ -static inline void enable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) -{ - mbox->ops->enable_irq(mbox, irq); -} -static inline void disable_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) -{ - mbox->ops->disable_irq(mbox, irq); -} -static inline void ack_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) -{ - if (mbox->ops->ack_irq) - mbox->ops->ack_irq(mbox, irq); -} -static inline int is_mbox_irq(struct omap_mbox *mbox, omap_mbox_irq_t irq) -{ - return mbox->ops->is_irq(mbox, irq); -} - -#endif /* __ARCH_ARM_PLAT_MAILBOX_H */ |