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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2006-07-10 11:44:36 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-10 20:24:19 (GMT) |
commit | 977c60238cfff1f9eb07cfd78bc02da91b7b499b (patch) | |
tree | e44a3e190aa857d1d843366ead8929fd0fe163a6 | |
parent | a08bc4cb09dfea4cb1d29061d82b04338ed7c21a (diff) | |
download | linux-977c60238cfff1f9eb07cfd78bc02da91b7b499b.tar.xz |
[PATCH] aoa: i2sbus: revamp control layer
This patch revamps the i2sbus control layer by using the macio/keylargo
functions instead of directly mapping.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r-- | sound/aoa/soundbus/i2sbus/i2sbus-control.c | 79 | ||||
-rw-r--r-- | sound/aoa/soundbus/i2sbus/i2sbus-control.h | 37 | ||||
-rw-r--r-- | sound/aoa/soundbus/i2sbus/i2sbus.h | 12 |
3 files changed, 47 insertions, 81 deletions
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-control.c b/sound/aoa/soundbus/i2sbus/i2sbus-control.c index f504079..87beb4a 100644 --- a/sound/aoa/soundbus/i2sbus/i2sbus-control.c +++ b/sound/aoa/soundbus/i2sbus/i2sbus-control.c @@ -6,12 +6,16 @@ * GPL v2, can be found in COPYING. */ -#include <asm/io.h> +#include <linux/kernel.h> #include <linux/delay.h> + +#include <asm/io.h> #include <asm/prom.h> #include <asm/macio.h> #include <asm/pmac_feature.h> #include <asm/pmac_pfunc.h> +#include <asm/keylargo.h> + #include "i2sbus.h" int i2sbus_control_init(struct macio_dev* dev, struct i2sbus_control **c) @@ -22,26 +26,12 @@ int i2sbus_control_init(struct macio_dev* dev, struct i2sbus_control **c) INIT_LIST_HEAD(&(*c)->list); - if (of_address_to_resource(dev->ofdev.node, 0, &(*c)->rsrc)) - goto err; - /* we really should be using feature calls instead of mapping - * these registers. It's safe for now since no one else is - * touching them... */ - (*c)->controlregs = ioremap((*c)->rsrc.start, - sizeof(struct i2s_control_regs)); - if (!(*c)->controlregs) - goto err; - + (*c)->macio = dev->bus->chip; return 0; - err: - kfree(*c); - *c = NULL; - return -ENODEV; } void i2sbus_control_destroy(struct i2sbus_control *c) { - iounmap(c->controlregs); kfree(c); } @@ -93,19 +83,22 @@ int i2sbus_control_enable(struct i2sbus_control *c, struct i2sbus_dev *i2sdev) { struct pmf_args args = { .count = 0 }; - int cc; + struct macio_chip *macio = c->macio; if (i2sdev->enable) return pmf_call_one(i2sdev->enable, &args); + if (macio == NULL || macio->base == NULL) + return -ENODEV; + switch (i2sdev->bus_number) { case 0: - cc = in_le32(&c->controlregs->cell_control); - out_le32(&c->controlregs->cell_control, cc | CTRL_CLOCK_INTF_0_ENABLE); + /* these need to be locked or done through + * newly created feature calls! */ + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_ENABLE); break; case 1: - cc = in_le32(&c->controlregs->cell_control); - out_le32(&c->controlregs->cell_control, cc | CTRL_CLOCK_INTF_1_ENABLE); + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_ENABLE); break; default: return -ENODEV; @@ -118,7 +111,7 @@ int i2sbus_control_cell(struct i2sbus_control *c, int enable) { struct pmf_args args = { .count = 0 }; - int cc; + struct macio_chip *macio = c->macio; switch (enable) { case 0: @@ -133,18 +126,22 @@ int i2sbus_control_cell(struct i2sbus_control *c, printk(KERN_ERR "i2sbus: INVALID CELL ENABLE VALUE\n"); return -ENODEV; } + + if (macio == NULL || macio->base == NULL) + return -ENODEV; + switch (i2sdev->bus_number) { case 0: - cc = in_le32(&c->controlregs->cell_control); - cc &= ~CTRL_CLOCK_CELL_0_ENABLE; - cc |= enable * CTRL_CLOCK_CELL_0_ENABLE; - out_le32(&c->controlregs->cell_control, cc); + if (enable) + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE); + else + MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CELL_ENABLE); break; case 1: - cc = in_le32(&c->controlregs->cell_control); - cc &= ~CTRL_CLOCK_CELL_1_ENABLE; - cc |= enable * CTRL_CLOCK_CELL_1_ENABLE; - out_le32(&c->controlregs->cell_control, cc); + if (enable) + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_CELL_ENABLE); + else + MACIO_BIC(KEYLARGO_FCR1, KL1_I2S1_CELL_ENABLE); break; default: return -ENODEV; @@ -157,7 +154,7 @@ int i2sbus_control_clock(struct i2sbus_control *c, int enable) { struct pmf_args args = { .count = 0 }; - int cc; + struct macio_chip *macio = c->macio; switch (enable) { case 0: @@ -172,18 +169,22 @@ int i2sbus_control_clock(struct i2sbus_control *c, printk(KERN_ERR "i2sbus: INVALID CLOCK ENABLE VALUE\n"); return -ENODEV; } + + if (macio == NULL || macio->base == NULL) + return -ENODEV; + switch (i2sdev->bus_number) { case 0: - cc = in_le32(&c->controlregs->cell_control); - cc &= ~CTRL_CLOCK_CLOCK_0_ENABLE; - cc |= enable * CTRL_CLOCK_CLOCK_0_ENABLE; - out_le32(&c->controlregs->cell_control, cc); + if (enable) + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); + else + MACIO_BIC(KEYLARGO_FCR1, KL1_I2S0_CLK_ENABLE_BIT); break; case 1: - cc = in_le32(&c->controlregs->cell_control); - cc &= ~CTRL_CLOCK_CLOCK_1_ENABLE; - cc |= enable * CTRL_CLOCK_CLOCK_1_ENABLE; - out_le32(&c->controlregs->cell_control, cc); + if (enable) + MACIO_BIS(KEYLARGO_FCR1, KL1_I2S1_CLK_ENABLE_BIT); + else + MACIO_BIC(KEYLARGO_FCR1, KL1_I2S1_CLK_ENABLE_BIT); break; default: return -ENODEV; diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-control.h b/sound/aoa/soundbus/i2sbus/i2sbus-control.h deleted file mode 100644 index bb05550..0000000 --- a/sound/aoa/soundbus/i2sbus/i2sbus-control.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * i2sbus driver -- bus register definitions - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * GPL v2, can be found in COPYING. - */ -#ifndef __I2SBUS_CONTROLREGS_H -#define __I2SBUS_CONTROLREGS_H - -/* i2s control registers, at least what we know about them */ - -#define __PAD(m,n) u8 __pad##m[n] -#define _PAD(line, n) __PAD(line, n) -#define PAD(n) _PAD(__LINE__, (n)) -struct i2s_control_regs { - PAD(0x38); - __le32 fcr0; /* 0x38 (unknown) */ - __le32 cell_control; /* 0x3c (fcr1) */ - __le32 fcr2; /* 0x40 (unknown) */ - __le32 fcr3; /* 0x44 (fcr3) */ - __le32 clock_control; /* 0x48 (unknown) */ - PAD(4); - /* total size: 0x50 bytes */ -} __attribute__((__packed__)); - -#define CTRL_CLOCK_CELL_0_ENABLE (1<<10) -#define CTRL_CLOCK_CLOCK_0_ENABLE (1<<12) -#define CTRL_CLOCK_SWRESET_0 (1<<11) -#define CTRL_CLOCK_INTF_0_ENABLE (1<<13) - -#define CTRL_CLOCK_CELL_1_ENABLE (1<<17) -#define CTRL_CLOCK_CLOCK_1_ENABLE (1<<18) -#define CTRL_CLOCK_SWRESET_1 (1<<19) -#define CTRL_CLOCK_INTF_1_ENABLE (1<<20) - -#endif /* __I2SBUS_CONTROLREGS_H */ diff --git a/sound/aoa/soundbus/i2sbus/i2sbus.h b/sound/aoa/soundbus/i2sbus/i2sbus.h index d32f8a9..0c69d20 100644 --- a/sound/aoa/soundbus/i2sbus/i2sbus.h +++ b/sound/aoa/soundbus/i2sbus/i2sbus.h @@ -7,20 +7,22 @@ */ #ifndef __I2SBUS_H #define __I2SBUS_H -#include <asm/dbdma.h> #include <linux/interrupt.h> -#include <sound/pcm.h> #include <linux/spinlock.h> #include <linux/mutex.h> + +#include <sound/pcm.h> + #include <asm/prom.h> +#include <asm/pmac_feature.h> +#include <asm/dbdma.h> + #include "i2sbus-interface.h" -#include "i2sbus-control.h" #include "../soundbus.h" struct i2sbus_control { - volatile struct i2s_control_regs __iomem *controlregs; - struct resource rsrc; struct list_head list; + struct macio_chip *macio; }; #define MAX_DBDMA_COMMANDS 32 |