diff options
author | Jean Delvare <khali@linux-fr.org> | 2009-12-09 20:35:49 +0100 |
---|---|---|
committer | Jean Delvare <khali@linux-fr.org> | 2009-12-09 20:35:49 +0100 |
commit | b72656dbc491484765776a16eeb55ef2e90efea6 (patch) | |
tree | 17d8634c2871686b1593f7406f3abb517893075f /drivers/hwmon/w83627hf.c | |
parent | 8918023d40ebb2c086e77368810763975761cb1b (diff) | |
download | kernel_samsung_espresso10-b72656dbc491484765776a16eeb55ef2e90efea6.zip kernel_samsung_espresso10-b72656dbc491484765776a16eeb55ef2e90efea6.tar.gz kernel_samsung_espresso10-b72656dbc491484765776a16eeb55ef2e90efea6.tar.bz2 |
hwmon: (w83627hf) Stop using globals for I/O port numbers
Stop using global variables REG and VAL for I/O port numbers. This is
ugly and unsafe.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rodolfo Giometti <giometti@linux.it>
Diffstat (limited to 'drivers/hwmon/w83627hf.c')
-rw-r--r-- | drivers/hwmon/w83627hf.c | 85 |
1 files changed, 42 insertions, 43 deletions
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index d67407d..b257c72 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -59,6 +59,11 @@ static struct platform_device *pdev; #define DRVNAME "w83627hf" enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf }; +struct w83627hf_sio_data { + enum chips type; + int sioaddr; +}; + static u8 force_i2c = 0x1f; module_param(force_i2c, byte, 0); MODULE_PARM_DESC(force_i2c, @@ -73,9 +78,7 @@ module_param(force_id, ushort, 0); MODULE_PARM_DESC(force_id, "Override the detected device ID"); /* modified from kernel/include/traps.c */ -static int REG; /* The register to read/write */ #define DEV 0x07 /* Register: Logical device select */ -static int VAL; /* The value to read/write */ /* logical device numbers for superio_select (below) */ #define W83627HF_LD_FDC 0x00 @@ -105,37 +108,37 @@ static int VAL; /* The value to read/write */ #define W83687THF_VID_DATA 0xF1 /* w83687thf only */ static inline void -superio_outb(int reg, int val) +superio_outb(struct w83627hf_sio_data *sio, int reg, int val) { - outb(reg, REG); - outb(val, VAL); + outb(reg, sio->sioaddr); + outb(val, sio->sioaddr + 1); } static inline int -superio_inb(int reg) +superio_inb(struct w83627hf_sio_data *sio, int reg) { - outb(reg, REG); - return inb(VAL); + outb(reg, sio->sioaddr); + return inb(sio->sioaddr + 1); } static inline void -superio_select(int ld) +superio_select(struct w83627hf_sio_data *sio, int ld) { - outb(DEV, REG); - outb(ld, VAL); + outb(DEV, sio->sioaddr); + outb(ld, sio->sioaddr + 1); } static inline void -superio_enter(void) +superio_enter(struct w83627hf_sio_data *sio) { - outb(0x87, REG); - outb(0x87, REG); + outb(0x87, sio->sioaddr); + outb(0x87, sio->sioaddr); } static inline void -superio_exit(void) +superio_exit(struct w83627hf_sio_data *sio) { - outb(0xAA, REG); + outb(0xAA, sio->sioaddr); } #define W627_DEVID 0x52 @@ -376,10 +379,6 @@ struct w83627hf_data { u8 vrm_ovt; /* Register value, 627THF/637HF/687THF only */ }; -struct w83627hf_sio_data { - enum chips type; -}; - static int w83627hf_probe(struct platform_device *pdev); static int __devexit w83627hf_remove(struct platform_device *pdev); @@ -1136,11 +1135,8 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr, "W83687THF", }; - REG = sioaddr; - VAL = sioaddr + 1; - - superio_enter(); - val = force_id ? force_id : superio_inb(DEVID); + superio_enter(sio_data); + val = force_id ? force_id : superio_inb(sio_data, DEVID); switch (val) { case W627_DEVID: sio_data->type = w83627hf; @@ -1164,9 +1160,9 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr, goto exit; } - superio_select(W83627HF_LD_HWM); - val = (superio_inb(WINB_BASE_REG) << 8) | - superio_inb(WINB_BASE_REG + 1); + superio_select(sio_data, W83627HF_LD_HWM); + val = (superio_inb(sio_data, WINB_BASE_REG) << 8) | + superio_inb(sio_data, WINB_BASE_REG + 1); *addr = val & WINB_ALIGNMENT; if (*addr == 0) { printk(KERN_WARNING DRVNAME ": Base address not set, " @@ -1174,18 +1170,19 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr, goto exit; } - val = superio_inb(WINB_ACT_REG); + val = superio_inb(sio_data, WINB_ACT_REG); if (!(val & 0x01)) { printk(KERN_WARNING DRVNAME ": Enabling HWM logical device\n"); - superio_outb(WINB_ACT_REG, val | 0x01); + superio_outb(sio_data, WINB_ACT_REG, val | 0x01); } err = 0; + sio_data->sioaddr = sioaddr; pr_info(DRVNAME ": Found %s chip at %#x\n", names[sio_data->type], *addr); exit: - superio_exit(); + superio_exit(sio_data); return err; } @@ -1500,20 +1497,21 @@ static int w83627hf_read_value(struct w83627hf_data *data, u16 reg) static int __devinit w83627thf_read_gpio5(struct platform_device *pdev) { + struct w83627hf_sio_data *sio_data = pdev->dev.platform_data; int res = 0xff, sel; - superio_enter(); - superio_select(W83627HF_LD_GPIO5); + superio_enter(sio_data); + superio_select(sio_data, W83627HF_LD_GPIO5); /* Make sure these GPIO pins are enabled */ - if (!(superio_inb(W83627THF_GPIO5_EN) & (1<<3))) { + if (!(superio_inb(sio_data, W83627THF_GPIO5_EN) & (1<<3))) { dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n"); goto exit; } /* Make sure the pins are configured for input There must be at least five (VRM 9), and possibly 6 (VRM 10) */ - sel = superio_inb(W83627THF_GPIO5_IOSR) & 0x3f; + sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f; if ((sel & 0x1f) != 0x1f) { dev_dbg(&pdev->dev, "GPIO5 not configured for VID " "function\n"); @@ -1521,37 +1519,38 @@ static int __devinit w83627thf_read_gpio5(struct platform_device *pdev) } dev_info(&pdev->dev, "Reading VID from GPIO5\n"); - res = superio_inb(W83627THF_GPIO5_DR) & sel; + res = superio_inb(sio_data, W83627THF_GPIO5_DR) & sel; exit: - superio_exit(); + superio_exit(sio_data); return res; } static int __devinit w83687thf_read_vid(struct platform_device *pdev) { + struct w83627hf_sio_data *sio_data = pdev->dev.platform_data; int res = 0xff; - superio_enter(); - superio_select(W83627HF_LD_HWM); + superio_enter(sio_data); + superio_select(sio_data, W83627HF_LD_HWM); /* Make sure these GPIO pins are enabled */ - if (!(superio_inb(W83687THF_VID_EN) & (1 << 2))) { + if (!(superio_inb(sio_data, W83687THF_VID_EN) & (1 << 2))) { dev_dbg(&pdev->dev, "VID disabled, no VID function\n"); goto exit; } /* Make sure the pins are configured for input */ - if (!(superio_inb(W83687THF_VID_CFG) & (1 << 4))) { + if (!(superio_inb(sio_data, W83687THF_VID_CFG) & (1 << 4))) { dev_dbg(&pdev->dev, "VID configured as output, " "no VID function\n"); goto exit; } - res = superio_inb(W83687THF_VID_DATA) & 0x3f; + res = superio_inb(sio_data, W83687THF_VID_DATA) & 0x3f; exit: - superio_exit(); + superio_exit(sio_data); return res; } |