mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-09 01:28:05 -04:00
133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
#include "pwrcal-env.h"
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#include "pwrcal-rae.h"
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#ifdef PWRCAL_TARGET_LINUX
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#include <linux/io.h>
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#endif
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DEFINE_SPINLOCK(pwrcal_rae_spinlock);
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/* raw register access */
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unsigned int pwrcal_readl(void *addr)
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{
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unsigned int ret;
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void *ma;
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#ifdef PWRCAL_TARGET_LINUX
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ma = v2psfrmap[MAP_IDX(addr)].ma + ((unsigned long)addr & 0xFFFF);
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#else
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ma = (void *)((unsigned long)addr & ~(0x80000000));
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#endif
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ret = *((volatile unsigned int *)(ma));
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return ret;
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}
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void pwrcal_writel(void *addr, unsigned int regv)
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{
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void *ma;
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unsigned long flag = 0;
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#ifdef PWRCAL_TARGET_LINUX
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ma = v2psfrmap[MAP_IDX(addr)].ma + ((unsigned long)addr & 0xFFFF);
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if (addr < spinlock_enable_offset && !((unsigned long)addr & 0x80000000))
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#else
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ma = (void *)((unsigned long)addr & ~(0x80000000));
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if (!((unsigned long)addr & 0x80000000))
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#endif
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spin_lock_irqsave(&pwrcal_rae_spinlock, flag);
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*((volatile unsigned int *)(ma)) = regv;
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#ifdef PWRCAL_TARGET_LINUX
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if (addr < spinlock_enable_offset)
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#else
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if (!((unsigned long)addr & 0x80000000))
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#endif
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spin_unlock_irqrestore(&pwrcal_rae_spinlock, flag);
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}
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/* register access operations */
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unsigned int pwrcal_getbit(void *addr, unsigned int bitp)
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{
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unsigned int mask = 1 << bitp;
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unsigned int regv = pwrcal_readl(addr);
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return (regv & mask) >> bitp;
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}
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void pwrcal_setbit(void *addr, unsigned int bitp, unsigned int bitv)
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{
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void *ma;
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unsigned int mask = 1 << bitp;
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unsigned int regv;
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unsigned long flag = 0;
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#ifdef PWRCAL_TARGET_LINUX
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ma = v2psfrmap[MAP_IDX(addr)].ma + ((unsigned long)addr & 0xFFFF);
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if (addr < spinlock_enable_offset && !((unsigned long)addr & 0x80000000))
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#else
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ma = (void *)((unsigned long)addr & ~(0x80000000));
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if (!((unsigned long)addr & 0x80000000))
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#endif
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spin_lock_irqsave(&pwrcal_rae_spinlock, flag);
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regv = *((volatile unsigned int *)(ma));
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regv = (bitv == 1) ? (regv | mask) : (regv & ~mask);
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*((volatile unsigned int *)(ma)) = regv;
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#ifdef PWRCAL_TARGET_LINUX
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if (addr < spinlock_enable_offset)
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#else
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if (!((unsigned long)addr & 0x80000000))
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#endif
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spin_unlock_irqrestore(&pwrcal_rae_spinlock, flag);
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}
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unsigned int pwrcal_getf(void *addr,
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unsigned int fieldp,
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unsigned int fieldm)
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{
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unsigned int mask = fieldm << fieldp;
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unsigned int regv = pwrcal_readl(addr);
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return (regv & mask) >> fieldp;
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}
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void pwrcal_setf(void *addr,
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unsigned int fieldp,
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unsigned int fieldm,
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unsigned int fieldv)
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{
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void *ma;
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unsigned int mask = fieldm << fieldp;
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unsigned int regv;
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unsigned long flag = 0;
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#ifdef PWRCAL_TARGET_LINUX
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ma = v2psfrmap[MAP_IDX(addr)].ma + ((unsigned long)addr & 0xFFFF);
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if (addr < spinlock_enable_offset && !((unsigned long)addr & 0x80000000))
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#else
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ma = (void *)((unsigned long)addr & ~(0x80000000));
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if (!((unsigned long)addr & 0x80000000))
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#endif
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spin_lock_irqsave(&pwrcal_rae_spinlock, flag);
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regv = *((volatile unsigned int *)(ma));
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regv = (regv & ~mask) | (fieldv << fieldp);
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*((volatile unsigned int *)(ma)) = regv;
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#ifdef PWRCAL_TARGET_LINUX
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if (addr < spinlock_enable_offset)
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#else
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if (!((unsigned long)addr & 0x80000000))
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#endif
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spin_unlock_irqrestore(&pwrcal_rae_spinlock, flag);
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}
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void cal_rae_init(void)
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{
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#ifdef PWRCAL_TARGET_LINUX
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int i;
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for (i = 1; i < num_of_v2psfrmap; i++)
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if (v2psfrmap[i].pa)
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v2psfrmap[i].ma = ioremap(v2psfrmap[i].pa, SZ_64K);
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#endif
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}
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