diff options
Diffstat (limited to 'include/asm-arm/arch-ixp4xx/qmgr.h')
-rw-r--r-- | include/asm-arm/arch-ixp4xx/qmgr.h | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/include/asm-arm/arch-ixp4xx/qmgr.h b/include/asm-arm/arch-ixp4xx/qmgr.h deleted file mode 100644 index 1e52b95cede5..000000000000 --- a/include/asm-arm/arch-ixp4xx/qmgr.h +++ /dev/null @@ -1,126 +0,0 @@ -/* - * Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2 of the GNU General Public License - * as published by the Free Software Foundation. - */ - -#ifndef IXP4XX_QMGR_H -#define IXP4XX_QMGR_H - -#include <linux/io.h> -#include <linux/kernel.h> - -#define HALF_QUEUES 32 -#define QUEUES 64 /* only 32 lower queues currently supported */ -#define MAX_QUEUE_LENGTH 4 /* in dwords */ - -#define QUEUE_STAT1_EMPTY 1 /* queue status bits */ -#define QUEUE_STAT1_NEARLY_EMPTY 2 -#define QUEUE_STAT1_NEARLY_FULL 4 -#define QUEUE_STAT1_FULL 8 -#define QUEUE_STAT2_UNDERFLOW 1 -#define QUEUE_STAT2_OVERFLOW 2 - -#define QUEUE_WATERMARK_0_ENTRIES 0 -#define QUEUE_WATERMARK_1_ENTRY 1 -#define QUEUE_WATERMARK_2_ENTRIES 2 -#define QUEUE_WATERMARK_4_ENTRIES 3 -#define QUEUE_WATERMARK_8_ENTRIES 4 -#define QUEUE_WATERMARK_16_ENTRIES 5 -#define QUEUE_WATERMARK_32_ENTRIES 6 -#define QUEUE_WATERMARK_64_ENTRIES 7 - -/* queue interrupt request conditions */ -#define QUEUE_IRQ_SRC_EMPTY 0 -#define QUEUE_IRQ_SRC_NEARLY_EMPTY 1 -#define QUEUE_IRQ_SRC_NEARLY_FULL 2 -#define QUEUE_IRQ_SRC_FULL 3 -#define QUEUE_IRQ_SRC_NOT_EMPTY 4 -#define QUEUE_IRQ_SRC_NOT_NEARLY_EMPTY 5 -#define QUEUE_IRQ_SRC_NOT_NEARLY_FULL 6 -#define QUEUE_IRQ_SRC_NOT_FULL 7 - -struct qmgr_regs { - u32 acc[QUEUES][MAX_QUEUE_LENGTH]; /* 0x000 - 0x3FF */ - u32 stat1[4]; /* 0x400 - 0x40F */ - u32 stat2[2]; /* 0x410 - 0x417 */ - u32 statne_h; /* 0x418 - queue nearly empty */ - u32 statf_h; /* 0x41C - queue full */ - u32 irqsrc[4]; /* 0x420 - 0x42F IRC source */ - u32 irqen[2]; /* 0x430 - 0x437 IRQ enabled */ - u32 irqstat[2]; /* 0x438 - 0x43F - IRQ access only */ - u32 reserved[1776]; - u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */ -}; - -void qmgr_set_irq(unsigned int queue, int src, - void (*handler)(void *pdev), void *pdev); -void qmgr_enable_irq(unsigned int queue); -void qmgr_disable_irq(unsigned int queue); - -/* request_ and release_queue() must be called from non-IRQ context */ -int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */, - unsigned int nearly_empty_watermark, - unsigned int nearly_full_watermark); -void qmgr_release_queue(unsigned int queue); - - -static inline void qmgr_put_entry(unsigned int queue, u32 val) -{ - extern struct qmgr_regs __iomem *qmgr_regs; - __raw_writel(val, &qmgr_regs->acc[queue][0]); -} - -static inline u32 qmgr_get_entry(unsigned int queue) -{ - extern struct qmgr_regs __iomem *qmgr_regs; - return __raw_readl(&qmgr_regs->acc[queue][0]); -} - -static inline int qmgr_get_stat1(unsigned int queue) -{ - extern struct qmgr_regs __iomem *qmgr_regs; - return (__raw_readl(&qmgr_regs->stat1[queue >> 3]) - >> ((queue & 7) << 2)) & 0xF; -} - -static inline int qmgr_get_stat2(unsigned int queue) -{ - extern struct qmgr_regs __iomem *qmgr_regs; - return (__raw_readl(&qmgr_regs->stat2[queue >> 4]) - >> ((queue & 0xF) << 1)) & 0x3; -} - -static inline int qmgr_stat_empty(unsigned int queue) -{ - return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_EMPTY); -} - -static inline int qmgr_stat_nearly_empty(unsigned int queue) -{ - return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_EMPTY); -} - -static inline int qmgr_stat_nearly_full(unsigned int queue) -{ - return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_FULL); -} - -static inline int qmgr_stat_full(unsigned int queue) -{ - return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_FULL); -} - -static inline int qmgr_stat_underflow(unsigned int queue) -{ - return !!(qmgr_get_stat2(queue) & QUEUE_STAT2_UNDERFLOW); -} - -static inline int qmgr_stat_overflow(unsigned int queue) -{ - return !!(qmgr_get_stat2(queue) & QUEUE_STAT2_OVERFLOW); -} - -#endif |