* [PATCH] [POWERPC] get_property cleanups
From: Stephen Rothwell @ 2007-04-29 6:29 UTC (permalink / raw)
To: paulus; +Cc: Olof Johansson, ppc-dev
Just another pass through arch/powerpc for old usages.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
arch/powerpc/platforms/cell/ras.c | 4 ++--
arch/powerpc/platforms/pasemi/cpufreq.c | 11 ++++++-----
arch/powerpc/platforms/pasemi/gpio_mdio.c | 6 +++---
arch/powerpc/sysdev/uic.c | 8 ++++----
4 files changed, 15 insertions(+), 14 deletions(-)
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c
index b5ebc91..3961a08 100644
--- a/arch/powerpc/platforms/cell/ras.c
+++ b/arch/powerpc/platforms/cell/ras.c
@@ -149,7 +149,7 @@ static int __init cbe_ptcal_enable(void)
if (!np)
return -ENODEV;
- size = get_property(np, "ibm,cbe-ptcal-size", NULL);
+ size = of_get_property(np, "ibm,cbe-ptcal-size", NULL);
if (!size)
return -ENODEV;
@@ -168,7 +168,7 @@ static int __init cbe_ptcal_enable(void)
/* support for older device tree - use cpu nodes */
for_each_node_by_type(np, "cpu") {
- const u32 *nid = get_property(np, "node-id", NULL);
+ const u32 *nid = of_get_property(np, "node-id", NULL);
if (!nid) {
printk(KERN_ERR "%s: node %s is missing node-id?\n",
__FUNCTION__, np->full_name);
diff --git a/arch/powerpc/platforms/pasemi/cpufreq.c b/arch/powerpc/platforms/pasemi/cpufreq.c
index 4dd5c51..2a57d60 100644
--- a/arch/powerpc/platforms/pasemi/cpufreq.c
+++ b/arch/powerpc/platforms/pasemi/cpufreq.c
@@ -134,7 +134,8 @@ void restore_astate(int cpu)
static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
- u32 *max_freq;
+ const u32 *max_freqp;
+ u32 max_freq;
int i, cur_astate;
struct resource res;
struct device_node *cpu, *dn;
@@ -175,16 +176,16 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
pr_debug("init cpufreq on CPU %d\n", policy->cpu);
- max_freq = (u32*) get_property(cpu, "clock-frequency", NULL);
- if (!max_freq) {
+ max_freqp = of_get_property(cpu, "clock-frequency", NULL);
+ if (!max_freqp) {
err = -EINVAL;
goto out_unmap_sdcpwr;
}
/* we need the freq in kHz */
- *max_freq /= 1000;
+ max_freq = *max_freqp / 1000;
- pr_debug("max clock-frequency is at %u kHz\n", *max_freq);
+ pr_debug("max clock-frequency is at %u kHz\n", max_freq);
pr_debug("initializing frequency table\n");
/* initialize frequency table */
diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c
index b1d3b6b..c91a335 100644
--- a/arch/powerpc/platforms/pasemi/gpio_mdio.c
+++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c
@@ -258,7 +258,7 @@ static int __devinit gpio_mdio_probe(struct of_device *ofdev,
new_bus->write = &gpio_mdio_write,
new_bus->reset = &gpio_mdio_reset,
- prop = get_property(np, "reg", NULL);
+ prop = of_get_property(np, "reg", NULL);
new_bus->id = *prop;
new_bus->priv = priv;
@@ -269,10 +269,10 @@ static int __devinit gpio_mdio_probe(struct of_device *ofdev,
new_bus->irq[i] = irq_create_mapping(NULL, 10);
- prop = get_property(np, "mdc-pin", NULL);
+ prop = of_get_property(np, "mdc-pin", NULL);
priv->mdc_pin = *prop;
- prop = get_property(np, "mdio-pin", NULL);
+ prop = of_get_property(np, "mdio-pin", NULL);
priv->mdio_pin = *prop;
new_bus->dev = dev;
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index cdbe684..968fb40 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -230,7 +230,7 @@ static struct uic * __init uic_init_one(struct device_node *node)
memset(uic, 0, sizeof(*uic));
spin_lock_init(&uic->lock);
uic->of_node = of_node_get(node);
- indexp = get_property(node, "cell-index", &len);
+ indexp = of_get_property(node, "cell-index", &len);
if (!indexp || (len != sizeof(u32))) {
printk(KERN_ERR "uic: Device node %s has missing or invalid "
"cell-index property\n", node->full_name);
@@ -238,7 +238,7 @@ static struct uic * __init uic_init_one(struct device_node *node)
}
uic->index = *indexp;
- dcrreg = get_property(node, "dcr-reg", &len);
+ dcrreg = of_get_property(node, "dcr-reg", &len);
if (!dcrreg || (len != 2*sizeof(u32))) {
printk(KERN_ERR "uic: Device node %s has missing or invalid "
"dcr-reg property\n", node->full_name);
@@ -278,7 +278,7 @@ void __init uic_init_tree(void)
np = of_find_compatible_node(NULL, NULL, "ibm,uic");
while (np) {
- interrupts = get_property(np, "interrupts", NULL);
+ interrupts = of_get_property(np, "interrupts", NULL);
if (! interrupts)
break;
@@ -297,7 +297,7 @@ void __init uic_init_tree(void)
/* The scan again for cascaded UICs */
np = of_find_compatible_node(NULL, NULL, "ibm,uic");
while (np) {
- interrupts = get_property(np, "interrupts", NULL);
+ interrupts = of_get_property(np, "interrupts", NULL);
if (interrupts) {
/* Secondary UIC */
int cascade_virq;
--
1.5.1.2
^ permalink raw reply related
* Re: [PATCH v4] powerpc: 64K page support for kexec
From: Milton Miller @ 2007-04-29 5:35 UTC (permalink / raw)
To: Haren Myneni
Cc: Arnd Bergmann, linuxppc-dev, Paul Mackerras, Olof Johansson,
cbe-oss-dev
In-Reply-To: <46323F9F.2050205@linux.vnet.ibm.com>
On Apr 27, 2007, at 1:23 PM, Haren Myneni wrote:
> Luke Browning wrote:
>> On Fri, 2007-04-27 at 11:59 -0500, Milton Miller wrote:
>>> (panic is a function, so you are checking that the staticly linked
>>> non-weak function is available. If you want to check on when
>>> if its a panic kdump or not, you need to decode the flag and pass
>>> it to kexec_sequence, pass it back here, and update all platforms
>>> for the new parameter).
>>>
>>> But I still say the check while clearing the table is too late,
>>> it should be a debug scan before clearing any mappings.
>>
>> How about the following as an alternative.
>> BUG_ON((hpte_v & 0x4000000000000000UL) && (crashing_cpus == -1));
>> BUG_ON((size == MMU_PAGE_16G) && (crashing_cpus == -1));
>> BUG_ON((size == MMU_PAGE_64K_AP) && (crashing_cpus == -1));
>>
> should be crashing_cpu - contains the panic cpu ID
and that only exists (or is even declared) when CONFIG_KEXEC,
whereas this code is based on MMU.
>> I don't have time to work on a multi-platform solution.
>>
>> Regards,
>> Luke
We could move the comment to fix this next to the MMU definitions,
and drop the BUG. For that matter, we probably don't need to
define or save slots for the sizes we don't support. In other
words, tie adding support to including support for this function.
milton
^ permalink raw reply
* Re: Current kernel with all patches for MPC5200
From: Grant Likely @ 2007-04-29 5:24 UTC (permalink / raw)
To: roger blofeld; +Cc: linuxppc-embedded
In-Reply-To: <196297.82202.qm@web53501.mail.re2.yahoo.com>
On 4/28/07, roger blofeld <blofeldus@yahoo.com> wrote:
> Matthias,
> I would suggest http://git.secretlab.ca/cgi-bin/gitweb.cgi or http://gitbits.246tnt.com/gitweb/gitweb.cgi?p=linux-2.6-mpc52xx.git;a=summary or www.denx.de as starting points.
>
> Does anyone know if patches from these repositories are destined to be in the mainline kernel any time soon? Last I heard 2.6.22 was the target to get things like Bestcomm support in Linus' kernel.
It probably won't hit 2.6.22. :-( Neither Sylvain or I have had time
to get the latest bestcom/eth code suitable for submission, and it is
unlikely that we will get it done before the merge window closes.
Best bet is to use the working (but ugly) eth driver in the above git
trees.
Cheers,
g.
--
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195
^ permalink raw reply
* Re: [PATCH v3] [2.6.22] pasemi: cpufreq driver
From: Olof Johansson @ 2007-04-29 4:42 UTC (permalink / raw)
To: paulus, linuxppc-dev, egor, arnd, cpufreq
In-Reply-To: <20070429025021.GC2781@isilmar.linta.de>
On Sat, Apr 28, 2007 at 10:50:21PM -0400, Dominik Brodowski wrote:
> Hi,
>
> On Fri, Apr 27, 2007 at 12:46:01AM -0500, Olof Johansson wrote:
> > + max_freq = (u32*) get_property(cpu, "clock-frequency", NULL);
>
> (u32) or (32*) ?
>
> > + cur_astate = get_cur_astate(policy->cpu);
>
> May the different cores have different settings at initalization? e.g.
>
> core 0: freq A
> core 1: freq B
>
> with (freq B > freq A)? If so, cur_astate is set wrongly, as the _effective_
> frequency would be freq B, right?
Firmware normally sets only cpu 0 (since cpu 1 isn't started until after
linux is loaded and started). So it'll works well by default.
> > +#ifndef CONFIG_PPC_PASEMI_CPUFREQ
> > + printk(KERN_WARNING "No cpufreq driver, powersavings modes disabled\n");
> > + current_mode = 0;
> > +#endif
> > +
>
> This confuses me a bit -- does something else than cpufreq not work if
> cpufreq is disabled?
After doze, we come back out in astate 0, so we need to raise it back
up. We do so by calling the restore_astate() function. If we don't have
it, and use idle=doze, we'll end up with a cpu running at astate 0 and
no way to raise it.
> Overall, the patch looks good to me.
Thanks,
-Olof
^ permalink raw reply
* Re: [PATCH v3] [2.6.22] pasemi: cpufreq driver
From: Olof Johansson @ 2007-04-29 4:39 UTC (permalink / raw)
To: Stephen Rothwell
Cc: arnd, cpufreq, Dominik Brodowski, linuxppc-dev, paulus, egor
In-Reply-To: <20070429134059.feed0dc1.sfr@canb.auug.org.au>
On Sun, Apr 29, 2007 at 01:40:59PM +1000, Stephen Rothwell wrote:
> On Sat, 28 Apr 2007 22:50:21 -0400 Dominik Brodowski <linux@dominikbrodowski.net> wrote:
> >
> > Hi,
> >
> > On Fri, Apr 27, 2007 at 12:46:01AM -0500, Olof Johansson wrote:
> > > + max_freq = (u32*) get_property(cpu, "clock-frequency", NULL);
> >
> > (u32) or (32*) ?
>
> Neither, get_property now returns (void *) so casting is not needed or
> wanted.
>
> Also, later in the patch, you modify the property value in place. Do not do this. To help you remember, if you had not done the cast, gcc would have complained because get_property return a const void *.
Yep. It came along over from the cbe_cpufreq driver, which also does
it. I'll post a patch tomorrow or Monday unless someone else beats me
to it (the driver has already been merged).
> Also, get_property is now called of_get_property.
Sure, but keeping up with the API churn during other patch merging is a mess. It's easier to
make one final pass over all new code and fix it up once more later during the merge window.
-Olof
^ permalink raw reply
* Re: [PATCH 2/2] Rename get_property to of_get_property: drivers/net
From: David Miller @ 2007-04-29 3:47 UTC (permalink / raw)
To: sfr; +Cc: linuxppc-dev, akpm, paulus, jeff, netdev
In-Reply-To: <20070429114446.31f40a30.sfr@canb.auug.org.au>
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Sun, 29 Apr 2007 11:44:46 +1000
> So can I take this as a future OK for architecture specific network
> drivers changes to go through the architecture trees (cc'd to you)?
It's been my experience that if I'm just working through some
platform or bus specific API changes, people like Jeff tend to
not mind if it goes via ARCH trees and the like.
^ permalink raw reply
* Re: [PATCH v3] [2.6.22] pasemi: cpufreq driver
From: Stephen Rothwell @ 2007-04-29 3:40 UTC (permalink / raw)
To: Dominik Brodowski
Cc: arnd, cpufreq, linuxppc-dev, egor, Olof Johansson, paulus
In-Reply-To: <20070429025021.GC2781@isilmar.linta.de>
On Sat, 28 Apr 2007 22:50:21 -0400 Dominik Brodowski <linux@dominikbrodowski.net> wrote:
>
> Hi,
>
> On Fri, Apr 27, 2007 at 12:46:01AM -0500, Olof Johansson wrote:
> > + max_freq = (u32*) get_property(cpu, "clock-frequency", NULL);
>
> (u32) or (32*) ?
Neither, get_property now returns (void *) so casting is not needed or
wanted.
Also, later in the patch, you modify the property value in place. Do not do this. To help you remember, if you had not done the cast, gcc would have complained because get_property return a const void *.
Also, get_property is now called of_get_property.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
^ permalink raw reply
* Re: [PATCH v3] [2.6.22] pasemi: cpufreq driver
From: Dominik Brodowski @ 2007-04-29 2:50 UTC (permalink / raw)
To: Olof Johansson; +Cc: linuxppc-dev, egor, paulus, arnd, cpufreq
In-Reply-To: <20070427054601.GB7755@lixom.net>
Hi,
On Fri, Apr 27, 2007 at 12:46:01AM -0500, Olof Johansson wrote:
> + max_freq = (u32*) get_property(cpu, "clock-frequency", NULL);
(u32) or (32*) ?
> + cur_astate = get_cur_astate(policy->cpu);
May the different cores have different settings at initalization? e.g.
core 0: freq A
core 1: freq B
with (freq B > freq A)? If so, cur_astate is set wrongly, as the _effective_
frequency would be freq B, right?
> +#ifndef CONFIG_PPC_PASEMI_CPUFREQ
> + printk(KERN_WARNING "No cpufreq driver, powersavings modes disabled\n");
> + current_mode = 0;
> +#endif
> +
This confuses me a bit -- does something else than cpufreq not work if
cpufreq is disabled?
Overall, the patch looks good to me.
Dominik
^ permalink raw reply
* Re: [PATCH 2/2] Rename get_property to of_get_property: drivers/net
From: Stephen Rothwell @ 2007-04-29 1:44 UTC (permalink / raw)
To: Jeff Garzik; +Cc: ppc-dev, akpm, paulus, netdev
In-Reply-To: <4633689E.50900@garzik.org>
[-- Attachment #1: Type: text/plain, Size: 1004 bytes --]
On Sat, 28 Apr 2007 11:30:38 -0400 Jeff Garzik <jeff@garzik.org> wrote:
>
> Sorry for your being a football here.
That's OK.
> AFAICS, looking at the two patches, it seems clear they should go in via
> Paulus's tree. There are clear dependencies, and it is clearly
> arch-specific code.
So can I take this as a future OK for architecture specific network
drivers changes to go through the architecture trees (cc'd to you)?
> If anything, it sounds like I should drop a ucc_geth patch or two from
> my tree. Is that the case?
No, my patches can wait (there are backward compatibility hacks in place)
so once you have merged your changes with Linus (I am assuming it won't
be to long), we will put these through Paulus' tree.
(The ucc_geth stuff was a pain, but the real kicker (as far as I was
concered) was the ehea changes - parts of that driver have been
completely rewritten in your tree.)
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]
^ permalink raw reply
* Using /dev/rtc causes message "system delaying clock ticks?"
From: melinda develey @ 2007-04-28 21:46 UTC (permalink / raw)
To: linuxppc-embedded
[-- Attachment #1: Type: text/plain, Size: 930 bytes --]
I'm using an MPC885 with the linux kernel rtc emulator driver. Because I need to wake a process every second, exactly synchronized with the rtc, I'm using the following code snippet:
____________________________________________
/* Turn on update interrupts (one per second) */
retval = ioctl(fd, RTC_UIE_ON, 0);
if (retval == -1) {
perror("ioctl");
exit(errno);
}
while (1)
{
/* This read will block */
retval = read(fd, &data, sizeof(unsigned long));
if (retval == -1) {
perror("read");
exit(errno);
}
/* Do something exactly synchronized with RTC */
/* ...... */
}
_________________________________________
>From time to time I receive the message on the subject. What's happening?
Bye,
Melinda.
---------------------------------
Ahhh...imagining that irresistible "new car" smell?
Check outnew cars at Yahoo! Autos.
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^ permalink raw reply
* Claiming back serial console
From: melinda develey @ 2007-04-28 21:22 UTC (permalink / raw)
To: linuxppc-embedded
[-- Attachment #1: Type: text/plain, Size: 333 bytes --]
My kernel outputs on the ttyS0. Now I need this serial for a SLIP link and I don't want the kernel to use it as console. How can a user mode process tell the kernel to stop using ttyS0 ?
Bye,
Melinda.
---------------------------------
Ahhh...imagining that irresistible "new car" smell?
Check outnew cars at Yahoo! Autos.
[-- Attachment #2: Type: text/html, Size: 495 bytes --]
^ permalink raw reply
* [2.6 patch] powerpc: remove the unused HTDMSOUND driver
From: Adrian Bunk @ 2007-04-28 19:19 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel, linuxppc-dev, linuxppc-embedded, paulus
Recently, someone fixed a syntax error in the HTDMSOUND driver
introduced 4 years ago.
Unfortunately not by trying to compile this driver for his hardware but
by code inspection - which seems to be a strong indication that there
are no users left for this OSS sound driver.
This patch therefore removes it.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Dan Malek <dan@embeddedalley.com>
Acked-by: Marcelo Tosatti <marcelo@kvack.org>
---
This patch has been sent on:
- 25 Mar 2007
- 7 Mar 2007
arch/ppc/8xx_io/Kconfig | 4
arch/ppc/8xx_io/Makefile | 1
arch/ppc/8xx_io/cs4218.h | 166 -
arch/ppc/8xx_io/cs4218_tdm.c | 2833 --------------------------------
arch/ppc/platforms/rpxclassic.h | 4
arch/ppc/platforms/rpxhiox.h | 41
arch/ppc/platforms/rpxlite.h | 4
arch/ppc/syslib/m8xx_setup.c | 2
8 files changed, 1 insertion(+), 3054 deletions(-)
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig.old 2007-03-06 06:47:04.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Kconfig 2007-03-06 06:47:16.000000000 +0100
@@ -74,10 +74,6 @@
Allocate large buffers for MPC8xx Ethernet. Increases throughput
and decreases the likelihood of dropped packets, but costs memory.
-config HTDMSOUND
- bool "Embedded Planet HIOX Audio"
- depends on SOUND=y
-
# This doesn't really belong here, but it is convenient to ask
# 8xx specific questions.
comment "Generic MPC8xx Options"
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile.old 2007-03-06 06:47:23.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/Makefile 2007-03-06 06:47:30.000000000 +0100
@@ -7,4 +7,3 @@
obj-$(CONFIG_FEC_ENET) += fec.o
obj-$(CONFIG_SCC_ENET) += enet.o
obj-$(CONFIG_UCODE_PATCH) += micropatch.o
-obj-$(CONFIG_HTDMSOUND) += cs4218_tdm.o
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h.old 2007-03-06 06:49:05.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxlite.h 2007-03-06 06:49:41.000000000 +0100
@@ -57,10 +57,6 @@
#define BCSR1_PCVCTL6 ((uint)0x00020000)
#define BCSR1_PCVCTL7 ((uint)0x00010000)
-#if defined(CONFIG_HTDMSOUND)
-#include <platforms/rpxhiox.h>
-#endif
-
/* define IO_BASE for pcmcia */
#define _IO_BASE 0x80000000
#define _IO_BASE_SIZE 0x1000
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h.old 2007-03-06 06:49:51.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxclassic.h 2007-03-06 06:49:56.000000000 +0100
@@ -69,10 +69,6 @@
#define BCSR2_QSPACESEL ((uint)0x00004000)
#define BCSR2_FETHLEDMODE ((uint)0x00000800) /* CLLF */
-#if defined(CONFIG_HTDMSOUND)
-#include <platforms/rpxhiox.h>
-#endif
-
/* define IO_BASE for pcmcia, CLLF only */
#if !defined(CONFIG_PCI)
#define _IO_BASE 0x80000000
--- linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c.old 2007-03-06 06:50:43.000000000 +0100
+++ linux-2.6.21-rc2-mm1/arch/ppc/syslib/m8xx_setup.c 2007-03-06 06:50:59.000000000 +0100
@@ -413,7 +413,7 @@
io_block_mapping(_IO_BASE,_IO_BASE,_IO_BASE_SIZE, _PAGE_IO);
#endif
#endif
-#if defined(CONFIG_HTDMSOUND) || defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
+#if defined(CONFIG_RPXTOUCH) || defined(CONFIG_FB_RPX)
io_block_mapping(HIOX_CSR_ADDR, HIOX_CSR_ADDR, HIOX_CSR_SIZE, _PAGE_IO);
#endif
#ifdef CONFIG_FADS
--- linux-2.6.21-rc2-mm1/arch/ppc/platforms/rpxhiox.h 2007-02-04 19:44:54.000000000 +0100
+++ /dev/null 2006-09-19 00:45:31.000000000 +0200
@@ -1,41 +0,0 @@
-/*
- * The Embedded Planet HIOX expansion card definitions.
- * There were a few different versions of these cards, but only
- * the one that escaped real production is defined here.
- *
- * Copyright (c) 2000 Dan Malek (dmalek@jlc.net)
- */
-#ifndef __MACH_RPX_HIOX_DEFS
-#define __MACH_RPX_HIOX_DEFS
-
-#define HIOX_CSR_ADDR ((uint)0xfac00000)
-#define HIOX_CSR_SIZE ((uint)(4 * 1024))
-#define HIOX_CSR0_ADDR HIOX_CSR_ADDR
-#define HIOX_CSR4_ADDR ((uint)0xfac00004)
-
-#define HIOX_CSR0_DEFAULT ((uint)0x380f3c00)
-#define HIOX_CSR0_ENSCC2 ((uint)0x80000000)
-#define HIOX_CSR0_ENSMC2 ((uint)0x04000000)
-#define HIOX_CSR0_ENVDOCLK ((uint)0x02000000)
-#define HIOX_CSR0_VDORST_HL ((uint)0x01000000)
-#define HIOX_CSR0_RS232SEL ((uint)0x0000c000)
-#define HIOX_CSR0_SCC3SEL ((uint)0x0000c000)
-#define HIOX_CSR0_SMC1SEL ((uint)0x00008000)
-#define HIOX_CSR0_SCC1SEL ((uint)0x00004000)
-#define HIOX_CSR0_ENTOUCH ((uint)0x00000080)
-#define HIOX_CSR0_PDOWN100 ((uint)0x00000060)
-#define HIOX_CSR0_PDOWN10 ((uint)0x00000040)
-#define HIOX_CSR0_PDOWN1 ((uint)0x00000020)
-#define HIOX_CSR0_TSELSPI ((uint)0x00000010)
-#define HIOX_CSR0_TIRQSTAT ((uint)0x00000008)
-#define HIOX_CSR4_DEFAULT ((uint)0x00000000)
-#define HIOX_CSR4_ENTIRQ2 ((uint)0x20000000)
-#define HIOX_CSR4_ENTIRQ3 ((uint)0x10000000)
-#define HIOX_CSR4_ENAUDIO ((uint)0x00000080)
-#define HIOX_CSR4_RSTAUDIO ((uint)0x00000040) /* 0 == reset */
-#define HIOX_CSR4_AUDCLKHI ((uint)0x00000020)
-#define HIOX_CSR4_AUDSPISEL ((uint)0x00000010)
-#define HIOX_CSR4_AUDIRQSTAT ((uint)0x00000008)
-#define HIOX_CSR4_AUDCLKSEL ((uint)0x00000007)
-
-#endif
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218.h 2007-02-04 19:44:54.000000000 +0100
+++ /dev/null 2006-09-19 00:45:31.000000000 +0200
@@ -1,166 +0,0 @@
-#ifndef _cs4218_h_
-/*
- * Hacked version of linux/drivers/sound/dmasound/dmasound.h
- *
- *
- * Minor numbers for the sound driver.
- *
- * Unfortunately Creative called the codec chip of SB as a DSP. For this
- * reason the /dev/dsp is reserved for digitized audio use. There is a
- * device for true DSP processors but it will be called something else.
- * In v3.0 it's /dev/sndproc but this could be a temporary solution.
- */
-#define _cs4218_h_
-
-#include <linux/types.h>
-
-#define SND_NDEVS 256 /* Number of supported devices */
-#define SND_DEV_CTL 0 /* Control port /dev/mixer */
-#define SND_DEV_SEQ 1 /* Sequencer output /dev/sequencer (FM
- synthesizer and MIDI output) */
-#define SND_DEV_MIDIN 2 /* Raw midi access */
-#define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */
-#define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */
-#define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */
-#define SND_DEV_STATUS 6 /* /dev/sndstat */
-/* #7 not in use now. Was in 2.4. Free for use after v3.0. */
-#define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */
-#define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */
-#define SND_DEV_PSS SND_DEV_SNDPROC
-
-/* switch on various prinks */
-#define DEBUG_DMASOUND 1
-
-#define MAX_AUDIO_DEV 5
-#define MAX_MIXER_DEV 4
-#define MAX_SYNTH_DEV 3
-#define MAX_MIDI_DEV 6
-#define MAX_TIMER_DEV 3
-
-#define MAX_CATCH_RADIUS 10
-
-#define le2be16(x) (((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
-#define le2be16dbl(x) (((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
-
-#define IOCTL_IN(arg, ret) \
- do { int error = get_user(ret, (int *)(arg)); \
- if (error) return error; \
- } while (0)
-#define IOCTL_OUT(arg, ret) ioctl_return((int *)(arg), ret)
-
-static inline int ioctl_return(int *addr, int value)
-{
- return value < 0 ? value : put_user(value, addr);
-}
-
-#define HAS_RECORD
-
- /*
- * Initialization
- */
-
-/* description of the set-up applies to either hard or soft settings */
-
-typedef struct {
- int format; /* AFMT_* */
- int stereo; /* 0 = mono, 1 = stereo */
- int size; /* 8/16 bit*/
- int speed; /* speed */
-} SETTINGS;
-
- /*
- * Machine definitions
- */
-
-typedef struct {
- const char *name;
- const char *name2;
- void (*open)(void);
- void (*release)(void);
- void *(*dma_alloc)(unsigned int, gfp_t);
- void (*dma_free)(void *, unsigned int);
- int (*irqinit)(void);
-#ifdef MODULE
- void (*irqcleanup)(void);
-#endif
- void (*init)(void);
- void (*silence)(void);
- int (*setFormat)(int);
- int (*setVolume)(int);
- int (*setBass)(int);
- int (*setTreble)(int);
- int (*setGain)(int);
- void (*play)(void);
- void (*record)(void); /* optional */
- void (*mixer_init)(void); /* optional */
- int (*mixer_ioctl)(u_int, u_long); /* optional */
- int (*write_sq_setup)(void); /* optional */
- int (*read_sq_setup)(void); /* optional */
- int (*sq_open)(mode_t); /* optional */
- int (*state_info)(char *, size_t); /* optional */
- void (*abort_read)(void); /* optional */
- int min_dsp_speed;
- int max_dsp_speed;
- int version ;
- int hardware_afmts ; /* OSS says we only return h'ware info */
- /* when queried via SNDCTL_DSP_GETFMTS */
- int capabilities ; /* low-level reply to SNDCTL_DSP_GETCAPS */
- SETTINGS default_hard ; /* open() or init() should set something valid */
- SETTINGS default_soft ; /* you can make it look like old OSS, if you want to */
-} MACHINE;
-
- /*
- * Low level stuff
- */
-
-typedef struct {
- ssize_t (*ct_ulaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_alaw)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_s8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_u8)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_s16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_u16be)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_s16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
- ssize_t (*ct_u16le)(const u_char *, size_t, u_char *, ssize_t *, ssize_t);
-} TRANS;
-
-
- /*
- * Sound queue stuff, the heart of the driver
- */
-
-struct sound_queue {
- /* buffers allocated for this queue */
- int numBufs; /* real limits on what the user can have */
- int bufSize; /* in bytes */
- char **buffers;
-
- /* current parameters */
- int locked ; /* params cannot be modified when != 0 */
- int user_frags ; /* user requests this many */
- int user_frag_size ; /* of this size */
- int max_count; /* actual # fragments <= numBufs */
- int block_size; /* internal block size in bytes */
- int max_active; /* in-use fragments <= max_count */
-
- /* it shouldn't be necessary to declare any of these volatile */
- int front, rear, count;
- int rear_size;
- /*
- * The use of the playing field depends on the hardware
- *
- * Atari, PMac: The number of frames that are loaded/playing
- *
- * Amiga: Bit 0 is set: a frame is loaded
- * Bit 1 is set: a frame is playing
- */
- int active;
- wait_queue_head_t action_queue, open_queue, sync_queue;
- int open_mode;
- int busy, syncing, xruns, died;
-};
-
-#define SLEEP(queue) interruptible_sleep_on_timeout(&queue, HZ)
-#define WAKE_UP(queue) (wake_up_interruptible(&queue))
-
-#endif /* _cs4218_h_ */
--- linux-2.6.21-rc2-mm1/arch/ppc/8xx_io/cs4218_tdm.c 2007-03-02 20:14:59.000000000 +0100
+++ /dev/null 2006-09-19 00:45:31.000000000 +0200
@@ -1,2833 +0,0 @@
-
-/* This is a modified version of linux/drivers/sound/dmasound.c to
- * support the CS4218 codec on the 8xx TDM port. Thanks to everyone
- * that contributed to the dmasound software (which includes me :-).
- *
- * The CS4218 is configured in Mode 4, sub-mode 0. This provides
- * left/right data only on the TDM port, as a 32-bit word, per frame
- * pulse. The control of the CS4218 is provided by some other means,
- * like the SPI port.
- * Dan Malek (dmalek@jlc.net)
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/major.h>
-#include <linux/fcntl.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/sound.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-/* Should probably do something different with this path name.....
- * Actually, I should just stop using it...
- */
-#include "cs4218.h"
-#include <linux/soundcard.h>
-
-#include <asm/mpc8xx.h>
-#include <asm/8xx_immap.h>
-#include <asm/commproc.h>
-
-#define DMASND_CS4218 5
-
-#define MAX_CATCH_RADIUS 10
-#define MIN_BUFFERS 4
-#define MIN_BUFSIZE 4
-#define MAX_BUFSIZE 128
-
-#define HAS_8BIT_TABLES
-
-static int sq_unit = -1;
-static int mixer_unit = -1;
-static int state_unit = -1;
-static int irq_installed = 0;
-static char **sound_buffers = NULL;
-static char **sound_read_buffers = NULL;
-
-static DEFINE_SPINLOCK(cs4218_lock);
-
-/* Local copies of things we put in the control register. Output
- * volume, like most codecs is really attenuation.
- */
-static int cs4218_rate_index;
-
-/*
- * Stuff for outputting a beep. The values range from -327 to +327
- * so we can multiply by an amplitude in the range 0..100 to get a
- * signed short value to put in the output buffer.
- */
-static short beep_wform[256] = {
- 0, 40, 79, 117, 153, 187, 218, 245,
- 269, 288, 304, 316, 323, 327, 327, 324,
- 318, 310, 299, 288, 275, 262, 249, 236,
- 224, 213, 204, 196, 190, 186, 183, 182,
- 182, 183, 186, 189, 192, 196, 200, 203,
- 206, 208, 209, 209, 209, 207, 204, 201,
- 197, 193, 188, 183, 179, 174, 170, 166,
- 163, 161, 160, 159, 159, 160, 161, 162,
- 164, 166, 168, 169, 171, 171, 171, 170,
- 169, 167, 163, 159, 155, 150, 144, 139,
- 133, 128, 122, 117, 113, 110, 107, 105,
- 103, 103, 103, 103, 104, 104, 105, 105,
- 105, 103, 101, 97, 92, 86, 78, 68,
- 58, 45, 32, 18, 3, -11, -26, -41,
- -55, -68, -79, -88, -95, -100, -102, -102,
- -99, -93, -85, -75, -62, -48, -33, -16,
- 0, 16, 33, 48, 62, 75, 85, 93,
- 99, 102, 102, 100, 95, 88, 79, 68,
- 55, 41, 26, 11, -3, -18, -32, -45,
- -58, -68, -78, -86, -92, -97, -101, -103,
- -105, -105, -105, -104, -104, -103, -103, -103,
- -103, -105, -107, -110, -113, -117, -122, -128,
- -133, -139, -144, -150, -155, -159, -163, -167,
- -169, -170, -171, -171, -171, -169, -168, -166,
- -164, -162, -161, -160, -159, -159, -160, -161,
- -163, -166, -170, -174, -179, -183, -188, -193,
- -197, -201, -204, -207, -209, -209, -209, -208,
- -206, -203, -200, -196, -192, -189, -186, -183,
- -182, -182, -183, -186, -190, -196, -204, -213,
- -224, -236, -249, -262, -275, -288, -299, -310,
- -318, -324, -327, -327, -323, -316, -304, -288,
- -269, -245, -218, -187, -153, -117, -79, -40,
-};
-
-#define BEEP_SPEED 5 /* 22050 Hz sample rate */
-#define BEEP_BUFLEN 512
-#define BEEP_VOLUME 15 /* 0 - 100 */
-
-static int beep_volume = BEEP_VOLUME;
-static int beep_playing = 0;
-static int beep_state = 0;
-static short *beep_buf;
-static void (*orig_mksound)(unsigned int, unsigned int);
-
-/* This is found someplace else......I guess in the keyboard driver
- * we don't include.
- */
-static void (*kd_mksound)(unsigned int, unsigned int);
-
-static int catchRadius = 0;
-static int numBufs = 4, bufSize = 32;
-static int numReadBufs = 4, readbufSize = 32;
-
-
-/* TDM/Serial transmit and receive buffer descriptors.
-*/
-static volatile cbd_t *rx_base, *rx_cur, *tx_base, *tx_cur;
-
-module_param(catchRadius, int, 0);
-module_param(numBufs, int, 0);
-module_param(bufSize, int, 0);
-module_param(numreadBufs, int, 0);
-module_param(readbufSize, int, 0);
-
-#define arraysize(x) (sizeof(x)/sizeof(*(x)))
-#define le2be16(x) (((x)<<8 & 0xff00) | ((x)>>8 & 0x00ff))
-#define le2be16dbl(x) (((x)<<8 & 0xff00ff00) | ((x)>>8 & 0x00ff00ff))
-
-#define IOCTL_IN(arg, ret) \
- do { int error = get_user(ret, (int *)(arg)); \
- if (error) return error; \
- } while (0)
-#define IOCTL_OUT(arg, ret) ioctl_return((int *)(arg), ret)
-
-/* CS4218 serial port control in mode 4.
-*/
-#define CS_INTMASK ((uint)0x40000000)
-#define CS_DO1 ((uint)0x20000000)
-#define CS_LATTEN ((uint)0x1f000000)
-#define CS_RATTEN ((uint)0x00f80000)
-#define CS_MUTE ((uint)0x00040000)
-#define CS_ISL ((uint)0x00020000)
-#define CS_ISR ((uint)0x00010000)
-#define CS_LGAIN ((uint)0x0000f000)
-#define CS_RGAIN ((uint)0x00000f00)
-
-#define CS_LATTEN_SET(X) (((X) & 0x1f) << 24)
-#define CS_RATTEN_SET(X) (((X) & 0x1f) << 19)
-#define CS_LGAIN_SET(X) (((X) & 0x0f) << 12)
-#define CS_RGAIN_SET(X) (((X) & 0x0f) << 8)
-
-#define CS_LATTEN_GET(X) (((X) >> 24) & 0x1f)
-#define CS_RATTEN_GET(X) (((X) >> 19) & 0x1f)
-#define CS_LGAIN_GET(X) (((X) >> 12) & 0x0f)
-#define CS_RGAIN_GET(X) (((X) >> 8) & 0x0f)
-
-/* The control register is effectively write only. We have to keep a copy
- * of what we write.
- */
-static uint cs4218_control;
-
-/* A place to store expanding information.
-*/
-static int expand_bal;
-static int expand_data;
-
-/* Since I can't make the microcode patch work for the SPI, I just
- * clock the bits using software.
- */
-static void sw_spi_init(void);
-static void sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt);
-static uint cs4218_ctl_write(uint ctlreg);
-
-/*** Some low level helpers **************************************************/
-
-/* 16 bit mu-law */
-
-static short ulaw2dma16[] = {
- -32124, -31100, -30076, -29052, -28028, -27004, -25980, -24956,
- -23932, -22908, -21884, -20860, -19836, -18812, -17788, -16764,
- -15996, -15484, -14972, -14460, -13948, -13436, -12924, -12412,
- -11900, -11388, -10876, -10364, -9852, -9340, -8828, -8316,
- -7932, -7676, -7420, -7164, -6908, -6652, -6396, -6140,
- -5884, -5628, -5372, -5116, -4860, -4604, -4348, -4092,
- -3900, -3772, -3644, -3516, -3388, -3260, -3132, -3004,
- -2876, -2748, -2620, -2492, -2364, -2236, -2108, -1980,
- -1884, -1820, -1756, -1692, -1628, -1564, -1500, -1436,
- -1372, -1308, -1244, -1180, -1116, -1052, -988, -924,
- -876, -844, -812, -780, -748, -716, -684, -652,
- -620, -588, -556, -524, -492, -460, -428, -396,
- -372, -356, -340, -324, -308, -292, -276, -260,
- -244, -228, -212, -196, -180, -164, -148, -132,
- -120, -112, -104, -96, -88, -80, -72, -64,
- -56, -48, -40, -32, -24, -16, -8, 0,
- 32124, 31100, 30076, 29052, 28028, 27004, 25980, 24956,
- 23932, 22908, 21884, 20860, 19836, 18812, 17788, 16764,
- 15996, 15484, 14972, 14460, 13948, 13436, 12924, 12412,
- 11900, 11388, 10876, 10364, 9852, 9340, 8828, 8316,
- 7932, 7676, 7420, 7164, 6908, 6652, 6396, 6140,
- 5884, 5628, 5372, 5116, 4860, 4604, 4348, 4092,
- 3900, 3772, 3644, 3516, 3388, 3260, 3132, 3004,
- 2876, 2748, 2620, 2492, 2364, 2236, 2108, 1980,
- 1884, 1820, 1756, 1692, 1628, 1564, 1500, 1436,
- 1372, 1308, 1244, 1180, 1116, 1052, 988, 924,
- 876, 844, 812, 780, 748, 716, 684, 652,
- 620, 588, 556, 524, 492, 460, 428, 396,
- 372, 356, 340, 324, 308, 292, 276, 260,
- 244, 228, 212, 196, 180, 164, 148, 132,
- 120, 112, 104, 96, 88, 80, 72, 64,
- 56, 48, 40, 32, 24, 16, 8, 0,
-};
-
-/* 16 bit A-law */
-
-static short alaw2dma16[] = {
- -5504, -5248, -6016, -5760, -4480, -4224, -4992, -4736,
- -7552, -7296, -8064, -7808, -6528, -6272, -7040, -6784,
- -2752, -2624, -3008, -2880, -2240, -2112, -2496, -2368,
- -3776, -3648, -4032, -3904, -3264, -3136, -3520, -3392,
- -22016, -20992, -24064, -23040, -17920, -16896, -19968, -18944,
- -30208, -29184, -32256, -31232, -26112, -25088, -28160, -27136,
- -11008, -10496, -12032, -11520, -8960, -8448, -9984, -9472,
- -15104, -14592, -16128, -15616, -13056, -12544, -14080, -13568,
- -344, -328, -376, -360, -280, -264, -312, -296,
- -472, -456, -504, -488, -408, -392, -440, -424,
- -88, -72, -120, -104, -24, -8, -56, -40,
- -216, -200, -248, -232, -152, -136, -184, -168,
- -1376, -1312, -1504, -1440, -1120, -1056, -1248, -1184,
- -1888, -1824, -2016, -1952, -1632, -1568, -1760, -1696,
- -688, -656, -752, -720, -560, -528, -624, -592,
- -944, -912, -1008, -976, -816, -784, -880, -848,
- 5504, 5248, 6016, 5760, 4480, 4224, 4992, 4736,
- 7552, 7296, 8064, 7808, 6528, 6272, 7040, 6784,
- 2752, 2624, 3008, 2880, 2240, 2112, 2496, 2368,
- 3776, 3648, 4032, 3904, 3264, 3136, 3520, 3392,
- 22016, 20992, 24064, 23040, 17920, 16896, 19968, 18944,
- 30208, 29184, 32256, 31232, 26112, 25088, 28160, 27136,
- 11008, 10496, 12032, 11520, 8960, 8448, 9984, 9472,
- 15104, 14592, 16128, 15616, 13056, 12544, 14080, 13568,
- 344, 328, 376, 360, 280, 264, 312, 296,
- 472, 456, 504, 488, 408, 392, 440, 424,
- 88, 72, 120, 104, 24, 8, 56, 40,
- 216, 200, 248, 232, 152, 136, 184, 168,
- 1376, 1312, 1504, 1440, 1120, 1056, 1248, 1184,
- 1888, 1824, 2016, 1952, 1632, 1568, 1760, 1696,
- 688, 656, 752, 720, 560, 528, 624, 592,
- 944, 912, 1008, 976, 816, 784, 880, 848,
-};
-
-
-/*** Translations ************************************************************/
-
-
-static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-
-
-/*** Low level stuff *********************************************************/
-
-struct cs_sound_settings {
- MACHINE mach; /* machine dependent things */
- SETTINGS hard; /* hardware settings */
- SETTINGS soft; /* software settings */
- SETTINGS dsp; /* /dev/dsp default settings */
- TRANS *trans_write; /* supported translations for playback */
- TRANS *trans_read; /* supported translations for record */
- int volume_left; /* volume (range is machine dependent) */
- int volume_right;
- int bass; /* tone (range is machine dependent) */
- int treble;
- int gain;
- int minDev; /* minor device number currently open */
-};
-
-static struct cs_sound_settings sound;
-
-static void *CS_Alloc(unsigned int size, gfp_t flags);
-static void CS_Free(void *ptr, unsigned int size);
-static int CS_IrqInit(void);
-#ifdef MODULE
-static void CS_IrqCleanup(void);
-#endif /* MODULE */
-static void CS_Silence(void);
-static void CS_Init(void);
-static void CS_Play(void);
-static void CS_Record(void);
-static int CS_SetFormat(int format);
-static int CS_SetVolume(int volume);
-static void cs4218_tdm_tx_intr(void *devid);
-static void cs4218_tdm_rx_intr(void *devid);
-static void cs4218_intr(void *devid);
-static int cs_get_volume(uint reg);
-static int cs_volume_setter(int volume, int mute);
-static int cs_get_gain(uint reg);
-static int cs_set_gain(int gain);
-static void cs_mksound(unsigned int hz, unsigned int ticks);
-static void cs_nosound(unsigned long xx);
-
-/*** Mid level stuff *********************************************************/
-
-
-static void sound_silence(void);
-static void sound_init(void);
-static int sound_set_format(int format);
-static int sound_set_speed(int speed);
-static int sound_set_stereo(int stereo);
-static int sound_set_volume(int volume);
-
-static ssize_t sound_copy_translate(const u_char *userPtr,
- size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-static ssize_t sound_copy_translate_read(const u_char *userPtr,
- size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft);
-
-
-/*
- * /dev/mixer abstraction
- */
-
-struct sound_mixer {
- int busy;
- int modify_counter;
-};
-
-static struct sound_mixer mixer;
-
-static struct sound_queue sq;
-static struct sound_queue read_sq;
-
-#define sq_block_address(i) (sq.buffers[i])
-#define SIGNAL_RECEIVED (signal_pending(current))
-#define NON_BLOCKING(open_mode) (open_mode & O_NONBLOCK)
-#define ONE_SECOND HZ /* in jiffies (100ths of a second) */
-#define NO_TIME_LIMIT 0xffffffff
-
-/*
- * /dev/sndstat
- */
-
-struct sound_state {
- int busy;
- char buf[512];
- int len, ptr;
-};
-
-static struct sound_state state;
-
-/*** Common stuff ********************************************************/
-
-static long long sound_lseek(struct file *file, long long offset, int orig);
-
-/*** Config & Setup **********************************************************/
-
-void dmasound_setup(char *str, int *ints);
-
-/*** Translations ************************************************************/
-
-
-/* ++TeSche: radically changed for new expanding purposes...
- *
- * These two routines now deal with copying/expanding/translating the samples
- * from user space into our buffer at the right frequency. They take care about
- * how much data there's actually to read, how much buffer space there is and
- * to convert samples into the right frequency/encoding. They will only work on
- * complete samples so it may happen they leave some bytes in the input stream
- * if the user didn't write a multiple of the current sample size. They both
- * return the number of bytes they've used from both streams so you may detect
- * such a situation. Luckily all programs should be able to cope with that.
- *
- * I think I've optimized anything as far as one can do in plain C, all
- * variables should fit in registers and the loops are really short. There's
- * one loop for every possible situation. Writing a more generalized and thus
- * parameterized loop would only produce slower code. Feel free to optimize
- * this in assembler if you like. :)
- *
- * I think these routines belong here because they're not yet really hardware
- * independent, especially the fact that the Falcon can play 16bit samples
- * only in stereo is hardcoded in both of them!
- *
- * ++geert: split in even more functions (one per format)
- */
-
-static ssize_t cs4218_ct_law(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- short *table = sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16;
- ssize_t count, used;
- short *p = (short *) &frame[*frameUsed];
- int val, stereo = sound.soft.stereo;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- u_char data;
- if (get_user(data, userPtr++))
- return -EFAULT;
- val = table[data];
- *p++ = val;
- if (stereo) {
- if (get_user(data, userPtr++))
- return -EFAULT;
- val = table[data];
- }
- *p++ = val;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_s8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- short *p = (short *) &frame[*frameUsed];
- int val, stereo = sound.soft.stereo;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- u_char data;
- if (get_user(data, userPtr++))
- return -EFAULT;
- val = data << 8;
- *p++ = val;
- if (stereo) {
- if (get_user(data, userPtr++))
- return -EFAULT;
- val = data << 8;
- }
- *p++ = val;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_u8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- short *p = (short *) &frame[*frameUsed];
- int val, stereo = sound.soft.stereo;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- u_char data;
- if (get_user(data, userPtr++))
- return -EFAULT;
- val = (data ^ 0x80) << 8;
- *p++ = val;
- if (stereo) {
- if (get_user(data, userPtr++))
- return -EFAULT;
- val = (data ^ 0x80) << 8;
- }
- *p++ = val;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 2: used;
-}
-
-
-/* This is the default format of the codec. Signed, 16-bit stereo
- * generated by an application shouldn't have to be copied at all.
- * We should just get the phsical address of the buffers and update
- * the TDM BDs directly.
- */
-static ssize_t cs4218_ct_s16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- int stereo = sound.soft.stereo;
- short *fp = (short *) &frame[*frameUsed];
-
- frameLeft >>= 2;
- userCount >>= (stereo? 2: 1);
- used = count = min(userCount, frameLeft);
- if (!stereo) {
- short *up = (short *) userPtr;
- while (count > 0) {
- short data;
- if (get_user(data, up++))
- return -EFAULT;
- *fp++ = data;
- *fp++ = data;
- count--;
- }
- } else {
- if (copy_from_user(fp, userPtr, count * 4))
- return -EFAULT;
- }
- *frameUsed += used * 4;
- return stereo? used * 4: used * 2;
-}
-
-static ssize_t cs4218_ct_u16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
- int stereo = sound.soft.stereo;
- short *fp = (short *) &frame[*frameUsed];
- short *up = (short *) userPtr;
-
- frameLeft >>= 2;
- userCount >>= (stereo? 2: 1);
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- int data;
- if (get_user(data, up++))
- return -EFAULT;
- data ^= mask;
- *fp++ = data;
- if (stereo) {
- if (get_user(data, up++))
- return -EFAULT;
- data ^= mask;
- }
- *fp++ = data;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 4: used * 2;
-}
-
-
-static ssize_t cs4218_ctx_law(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- unsigned short *table = (unsigned short *)
- (sound.soft.format == AFMT_MU_LAW ? ulaw2dma16: alaw2dma16);
- unsigned int data = expand_data;
- unsigned int *p = (unsigned int *) &frame[*frameUsed];
- int bal = expand_bal;
- int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
- int utotal, ftotal;
- int stereo = sound.soft.stereo;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- ftotal = frameLeft;
- utotal = userCount;
- while (frameLeft) {
- u_char c;
- if (bal < 0) {
- if (userCount == 0)
- break;
- if (get_user(c, userPtr++))
- return -EFAULT;
- data = table[c];
- if (stereo) {
- if (get_user(c, userPtr++))
- return -EFAULT;
- data = (data << 16) + table[c];
- } else
- data = (data << 16) + data;
- userCount--;
- bal += hSpeed;
- }
- *p++ = data;
- frameLeft--;
- bal -= sSpeed;
- }
- expand_bal = bal;
- expand_data = data;
- *frameUsed += (ftotal - frameLeft) * 4;
- utotal -= userCount;
- return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_s8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- unsigned int *p = (unsigned int *) &frame[*frameUsed];
- unsigned int data = expand_data;
- int bal = expand_bal;
- int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
- int stereo = sound.soft.stereo;
- int utotal, ftotal;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- ftotal = frameLeft;
- utotal = userCount;
- while (frameLeft) {
- u_char c;
- if (bal < 0) {
- if (userCount == 0)
- break;
- if (get_user(c, userPtr++))
- return -EFAULT;
- data = c << 8;
- if (stereo) {
- if (get_user(c, userPtr++))
- return -EFAULT;
- data = (data << 16) + (c << 8);
- } else
- data = (data << 16) + data;
- userCount--;
- bal += hSpeed;
- }
- *p++ = data;
- frameLeft--;
- bal -= sSpeed;
- }
- expand_bal = bal;
- expand_data = data;
- *frameUsed += (ftotal - frameLeft) * 4;
- utotal -= userCount;
- return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_u8(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- unsigned int *p = (unsigned int *) &frame[*frameUsed];
- unsigned int data = expand_data;
- int bal = expand_bal;
- int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
- int stereo = sound.soft.stereo;
- int utotal, ftotal;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- ftotal = frameLeft;
- utotal = userCount;
- while (frameLeft) {
- u_char c;
- if (bal < 0) {
- if (userCount == 0)
- break;
- if (get_user(c, userPtr++))
- return -EFAULT;
- data = (c ^ 0x80) << 8;
- if (stereo) {
- if (get_user(c, userPtr++))
- return -EFAULT;
- data = (data << 16) + ((c ^ 0x80) << 8);
- } else
- data = (data << 16) + data;
- userCount--;
- bal += hSpeed;
- }
- *p++ = data;
- frameLeft--;
- bal -= sSpeed;
- }
- expand_bal = bal;
- expand_data = data;
- *frameUsed += (ftotal - frameLeft) * 4;
- utotal -= userCount;
- return stereo? utotal * 2: utotal;
-}
-
-
-static ssize_t cs4218_ctx_s16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- unsigned int *p = (unsigned int *) &frame[*frameUsed];
- unsigned int data = expand_data;
- unsigned short *up = (unsigned short *) userPtr;
- int bal = expand_bal;
- int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
- int stereo = sound.soft.stereo;
- int utotal, ftotal;
-
- frameLeft >>= 2;
- userCount >>= (stereo? 2: 1);
- ftotal = frameLeft;
- utotal = userCount;
- while (frameLeft) {
- unsigned short c;
- if (bal < 0) {
- if (userCount == 0)
- break;
- if (get_user(data, up++))
- return -EFAULT;
- if (stereo) {
- if (get_user(c, up++))
- return -EFAULT;
- data = (data << 16) + c;
- } else
- data = (data << 16) + data;
- userCount--;
- bal += hSpeed;
- }
- *p++ = data;
- frameLeft--;
- bal -= sSpeed;
- }
- expand_bal = bal;
- expand_data = data;
- *frameUsed += (ftotal - frameLeft) * 4;
- utotal -= userCount;
- return stereo? utotal * 4: utotal * 2;
-}
-
-
-static ssize_t cs4218_ctx_u16(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
- unsigned int *p = (unsigned int *) &frame[*frameUsed];
- unsigned int data = expand_data;
- unsigned short *up = (unsigned short *) userPtr;
- int bal = expand_bal;
- int hSpeed = sound.hard.speed, sSpeed = sound.soft.speed;
- int stereo = sound.soft.stereo;
- int utotal, ftotal;
-
- frameLeft >>= 2;
- userCount >>= (stereo? 2: 1);
- ftotal = frameLeft;
- utotal = userCount;
- while (frameLeft) {
- unsigned short c;
- if (bal < 0) {
- if (userCount == 0)
- break;
- if (get_user(data, up++))
- return -EFAULT;
- data ^= mask;
- if (stereo) {
- if (get_user(c, up++))
- return -EFAULT;
- data = (data << 16) + (c ^ mask);
- } else
- data = (data << 16) + data;
- userCount--;
- bal += hSpeed;
- }
- *p++ = data;
- frameLeft--;
- bal -= sSpeed;
- }
- expand_bal = bal;
- expand_data = data;
- *frameUsed += (ftotal - frameLeft) * 4;
- utotal -= userCount;
- return stereo? utotal * 4: utotal * 2;
-}
-
-static ssize_t cs4218_ct_s8_read(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- short *p = (short *) &frame[*frameUsed];
- int val, stereo = sound.soft.stereo;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- u_char data;
-
- val = *p++;
- data = val >> 8;
- if (put_user(data, (u_char *)userPtr++))
- return -EFAULT;
- if (stereo) {
- val = *p;
- data = val >> 8;
- if (put_user(data, (u_char *)userPtr++))
- return -EFAULT;
- }
- p++;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_u8_read(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- short *p = (short *) &frame[*frameUsed];
- int val, stereo = sound.soft.stereo;
-
- frameLeft >>= 2;
- if (stereo)
- userCount >>= 1;
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- u_char data;
-
- val = *p++;
- data = (val >> 8) ^ 0x80;
- if (put_user(data, (u_char *)userPtr++))
- return -EFAULT;
- if (stereo) {
- val = *p;
- data = (val >> 8) ^ 0x80;
- if (put_user(data, (u_char *)userPtr++))
- return -EFAULT;
- }
- p++;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 2: used;
-}
-
-
-static ssize_t cs4218_ct_s16_read(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- int stereo = sound.soft.stereo;
- short *fp = (short *) &frame[*frameUsed];
-
- frameLeft >>= 2;
- userCount >>= (stereo? 2: 1);
- used = count = min(userCount, frameLeft);
- if (!stereo) {
- short *up = (short *) userPtr;
- while (count > 0) {
- short data;
- data = *fp;
- if (put_user(data, up++))
- return -EFAULT;
- fp+=2;
- count--;
- }
- } else {
- if (copy_to_user((u_char *)userPtr, fp, count * 4))
- return -EFAULT;
- }
- *frameUsed += used * 4;
- return stereo? used * 4: used * 2;
-}
-
-static ssize_t cs4218_ct_u16_read(const u_char *userPtr, size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t count, used;
- int mask = (sound.soft.format == AFMT_U16_LE? 0x0080: 0x8000);
- int stereo = sound.soft.stereo;
- short *fp = (short *) &frame[*frameUsed];
- short *up = (short *) userPtr;
-
- frameLeft >>= 2;
- userCount >>= (stereo? 2: 1);
- used = count = min(userCount, frameLeft);
- while (count > 0) {
- int data;
-
- data = *fp++;
- data ^= mask;
- if (put_user(data, up++))
- return -EFAULT;
- if (stereo) {
- data = *fp;
- data ^= mask;
- if (put_user(data, up++))
- return -EFAULT;
- }
- fp++;
- count--;
- }
- *frameUsed += used * 4;
- return stereo? used * 4: used * 2;
-}
-
-static TRANS transCSNormal = {
- cs4218_ct_law, cs4218_ct_law, cs4218_ct_s8, cs4218_ct_u8,
- cs4218_ct_s16, cs4218_ct_u16, cs4218_ct_s16, cs4218_ct_u16
-};
-
-static TRANS transCSExpand = {
- cs4218_ctx_law, cs4218_ctx_law, cs4218_ctx_s8, cs4218_ctx_u8,
- cs4218_ctx_s16, cs4218_ctx_u16, cs4218_ctx_s16, cs4218_ctx_u16
-};
-
-static TRANS transCSNormalRead = {
- NULL, NULL, cs4218_ct_s8_read, cs4218_ct_u8_read,
- cs4218_ct_s16_read, cs4218_ct_u16_read,
- cs4218_ct_s16_read, cs4218_ct_u16_read
-};
-
-/*** Low level stuff *********************************************************/
-
-static void *CS_Alloc(unsigned int size, gfp_t flags)
-{
- int order;
-
- size >>= 13;
- for (order=0; order < 5; order++) {
- if (size == 0)
- break;
- size >>= 1;
- }
- return (void *)__get_free_pages(flags, order);
-}
-
-static void CS_Free(void *ptr, unsigned int size)
-{
- int order;
-
- size >>= 13;
- for (order=0; order < 5; order++) {
- if (size == 0)
- break;
- size >>= 1;
- }
- free_pages((ulong)ptr, order);
-}
-
-static int __init CS_IrqInit(void)
-{
- cpm_install_handler(CPMVEC_SMC2, cs4218_intr, NULL);
- return 1;
-}
-
-#ifdef MODULE
-static void CS_IrqCleanup(void)
-{
- volatile smc_t *sp;
- volatile cpm8xx_t *cp;
-
- /* First disable transmitter and receiver.
- */
- sp = &cpmp->cp_smc[1];
- sp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-
- /* And now shut down the SMC.
- */
- cp = cpmp; /* Get pointer to Communication Processor */
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
- CPM_CR_STOP_TX) | CPM_CR_FLG;
- while (cp->cp_cpcr & CPM_CR_FLG);
-
- /* Release the interrupt handler.
- */
- cpm_free_handler(CPMVEC_SMC2);
-
- kfree(beep_buf);
- kd_mksound = orig_mksound;
-}
-#endif /* MODULE */
-
-static void CS_Silence(void)
-{
- volatile smc_t *sp;
-
- /* Disable transmitter.
- */
- sp = &cpmp->cp_smc[1];
- sp->smc_smcmr &= ~SMCMR_TEN;
-}
-
-/* Frequencies depend upon external oscillator. There are two
- * choices, 12.288 and 11.2896 MHz. The RPCG audio supports both through
- * and external control register selection bit.
- */
-static int cs4218_freqs[] = {
- /* 12.288 11.2896 */
- 48000, 44100,
- 32000, 29400,
- 24000, 22050,
- 19200, 17640,
- 16000, 14700,
- 12000, 11025,
- 9600, 8820,
- 8000, 7350
-};
-
-static void CS_Init(void)
-{
- int i, tolerance;
-
- switch (sound.soft.format) {
- case AFMT_S16_LE:
- case AFMT_U16_LE:
- sound.hard.format = AFMT_S16_LE;
- break;
- default:
- sound.hard.format = AFMT_S16_BE;
- break;
- }
- sound.hard.stereo = 1;
- sound.hard.size = 16;
-
- /*
- * If we have a sample rate which is within catchRadius percent
- * of the requested value, we don't have to expand the samples.
- * Otherwise choose the next higher rate.
- */
- i = (sizeof(cs4218_freqs) / sizeof(int));
- do {
- tolerance = catchRadius * cs4218_freqs[--i] / 100;
- } while (sound.soft.speed > cs4218_freqs[i] + tolerance && i > 0);
- if (sound.soft.speed >= cs4218_freqs[i] - tolerance)
- sound.trans_write = &transCSNormal;
- else
- sound.trans_write = &transCSExpand;
- sound.trans_read = &transCSNormalRead;
- sound.hard.speed = cs4218_freqs[i];
- cs4218_rate_index = i;
-
- /* The CS4218 has seven selectable clock dividers for the sample
- * clock. The HIOX then provides one of two external rates.
- * An even numbered frequency table index uses the high external
- * clock rate.
- */
- *(uint *)HIOX_CSR4_ADDR &= ~(HIOX_CSR4_AUDCLKHI | HIOX_CSR4_AUDCLKSEL);
- if ((i & 1) == 0)
- *(uint *)HIOX_CSR4_ADDR |= HIOX_CSR4_AUDCLKHI;
- i >>= 1;
- *(uint *)HIOX_CSR4_ADDR |= (i & HIOX_CSR4_AUDCLKSEL);
-
- expand_bal = -sound.soft.speed;
-}
-
-static int CS_SetFormat(int format)
-{
- int size;
-
- switch (format) {
- case AFMT_QUERY:
- return sound.soft.format;
- case AFMT_MU_LAW:
- case AFMT_A_LAW:
- case AFMT_U8:
- case AFMT_S8:
- size = 8;
- break;
- case AFMT_S16_BE:
- case AFMT_U16_BE:
- case AFMT_S16_LE:
- case AFMT_U16_LE:
- size = 16;
- break;
- default: /* :-) */
- printk(KERN_ERR "dmasound: unknown format 0x%x, using AFMT_U8\n",
- format);
- size = 8;
- format = AFMT_U8;
- }
-
- sound.soft.format = format;
- sound.soft.size = size;
- if (sound.minDev == SND_DEV_DSP) {
- sound.dsp.format = format;
- sound.dsp.size = size;
- }
-
- CS_Init();
-
- return format;
-}
-
-/* Volume is the amount of attenuation we tell the codec to impose
- * on the outputs. There are 32 levels, with 0 the "loudest".
- */
-#define CS_VOLUME_TO_MASK(x) (31 - ((((x) - 1) * 31) / 99))
-#define CS_MASK_TO_VOLUME(y) (100 - ((y) * 99 / 31))
-
-static int cs_get_volume(uint reg)
-{
- int volume;
-
- volume = CS_MASK_TO_VOLUME(CS_LATTEN_GET(reg));
- volume |= CS_MASK_TO_VOLUME(CS_RATTEN_GET(reg)) << 8;
- return volume;
-}
-
-static int cs_volume_setter(int volume, int mute)
-{
- uint tempctl;
-
- if (mute && volume == 0) {
- tempctl = cs4218_control | CS_MUTE;
- } else {
- tempctl = cs4218_control & ~CS_MUTE;
- tempctl = tempctl & ~(CS_LATTEN | CS_RATTEN);
- tempctl |= CS_LATTEN_SET(CS_VOLUME_TO_MASK(volume & 0xff));
- tempctl |= CS_RATTEN_SET(CS_VOLUME_TO_MASK((volume >> 8) & 0xff));
- volume = cs_get_volume(tempctl);
- }
- if (tempctl != cs4218_control) {
- cs4218_ctl_write(tempctl);
- }
- return volume;
-}
-
-
-/* Gain has 16 steps from 0 to 15. These are in 1.5dB increments from
- * 0 (no gain) to 22.5 dB.
- */
-#define CS_RECLEVEL_TO_GAIN(v) \
- ((v) < 0 ? 0 : (v) > 100 ? 15 : (v) * 3 / 20)
-#define CS_GAIN_TO_RECLEVEL(v) (((v) * 20 + 2) / 3)
-
-static int cs_get_gain(uint reg)
-{
- int gain;
-
- gain = CS_GAIN_TO_RECLEVEL(CS_LGAIN_GET(reg));
- gain |= CS_GAIN_TO_RECLEVEL(CS_RGAIN_GET(reg)) << 8;
- return gain;
-}
-
-static int cs_set_gain(int gain)
-{
- uint tempctl;
-
- tempctl = cs4218_control & ~(CS_LGAIN | CS_RGAIN);
- tempctl |= CS_LGAIN_SET(CS_RECLEVEL_TO_GAIN(gain & 0xff));
- tempctl |= CS_RGAIN_SET(CS_RECLEVEL_TO_GAIN((gain >> 8) & 0xff));
- gain = cs_get_gain(tempctl);
-
- if (tempctl != cs4218_control) {
- cs4218_ctl_write(tempctl);
- }
- return gain;
-}
-
-static int CS_SetVolume(int volume)
-{
- return cs_volume_setter(volume, CS_MUTE);
-}
-
-static void CS_Play(void)
-{
- int i, count;
- unsigned long flags;
- volatile cbd_t *bdp;
- volatile cpm8xx_t *cp;
-
- /* Protect buffer */
- spin_lock_irqsave(&cs4218_lock, flags);
-#if 0
- if (awacs_beep_state) {
- /* sound takes precedence over beeps */
- out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
- out_le32(&awacs->control,
- (in_le32(&awacs->control) & ~0x1f00)
- | (awacs_rate_index << 8));
- out_le32(&awacs->byteswap, sound.hard.format != AFMT_S16_BE);
- out_le32(&awacs_txdma->cmdptr, virt_to_bus(&(awacs_tx_cmds[(sq.front+sq.active) % sq.max_count])));
-
- beep_playing = 0;
- awacs_beep_state = 0;
- }
-#endif
- i = sq.front + sq.active;
- if (i >= sq.max_count)
- i -= sq.max_count;
- while (sq.active < 2 && sq.active < sq.count) {
- count = (sq.count == sq.active + 1)?sq.rear_size:sq.block_size;
- if (count < sq.block_size && !sq.syncing)
- /* last block not yet filled, and we're not syncing. */
- break;
-
- bdp = &tx_base[i];
- bdp->cbd_datlen = count;
-
- flush_dcache_range((ulong)sound_buffers[i],
- (ulong)(sound_buffers[i] + count));
-
- if (++i >= sq.max_count)
- i = 0;
-
- if (sq.active == 0) {
- /* The SMC does not load its fifo until the first
- * TDM frame pulse, so the transmit data gets shifted
- * by one word. To compensate for this, we incorrectly
- * transmit the first buffer and shorten it by one
- * word. Subsequent buffers are then aligned properly.
- */
- bdp->cbd_datlen -= 2;
-
- /* Start up the SMC Transmitter.
- */
- cp = cpmp;
- cp->cp_smc[1].smc_smcmr |= SMCMR_TEN;
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
- CPM_CR_RESTART_TX) | CPM_CR_FLG;
- while (cp->cp_cpcr & CPM_CR_FLG);
- }
-
- /* Buffer is ready now.
- */
- bdp->cbd_sc |= BD_SC_READY;
-
- ++sq.active;
- }
- spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-
-static void CS_Record(void)
-{
- unsigned long flags;
- volatile smc_t *sp;
-
- if (read_sq.active)
- return;
-
- /* Protect buffer */
- spin_lock_irqsave(&cs4218_lock, flags);
-
- /* This is all we have to do......Just start it up.
- */
- sp = &cpmp->cp_smc[1];
- sp->smc_smcmr |= SMCMR_REN;
-
- read_sq.active = 1;
-
- spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-
-static void
-cs4218_tdm_tx_intr(void *devid)
-{
- int i = sq.front;
- volatile cbd_t *bdp;
-
- while (sq.active > 0) {
- bdp = &tx_base[i];
- if (bdp->cbd_sc & BD_SC_READY)
- break; /* this frame is still going */
- --sq.count;
- --sq.active;
- if (++i >= sq.max_count)
- i = 0;
- }
- if (i != sq.front)
- WAKE_UP(sq.action_queue);
- sq.front = i;
-
- CS_Play();
-
- if (!sq.active)
- WAKE_UP(sq.sync_queue);
-}
-
-
-static void
-cs4218_tdm_rx_intr(void *devid)
-{
-
- /* We want to blow 'em off when shutting down.
- */
- if (read_sq.active == 0)
- return;
-
- /* Check multiple buffers in case we were held off from
- * interrupt processing for a long time. Geeze, I really hope
- * this doesn't happen.
- */
- while ((rx_base[read_sq.rear].cbd_sc & BD_SC_EMPTY) == 0) {
-
- /* Invalidate the data cache range for this buffer.
- */
- invalidate_dcache_range(
- (uint)(sound_read_buffers[read_sq.rear]),
- (uint)(sound_read_buffers[read_sq.rear] + read_sq.block_size));
-
- /* Make buffer available again and move on.
- */
- rx_base[read_sq.rear].cbd_sc |= BD_SC_EMPTY;
- read_sq.rear++;
-
- /* Wrap the buffer ring.
- */
- if (read_sq.rear >= read_sq.max_active)
- read_sq.rear = 0;
-
- /* If we have caught up to the front buffer, bump it.
- * This will cause weird (but not fatal) results if the
- * read loop is currently using this buffer. The user is
- * behind in this case anyway, so weird things are going
- * to happen.
- */
- if (read_sq.rear == read_sq.front) {
- read_sq.front++;
- if (read_sq.front >= read_sq.max_active)
- read_sq.front = 0;
- }
- }
-
- WAKE_UP(read_sq.action_queue);
-}
-
-static void cs_nosound(unsigned long xx)
-{
- unsigned long flags;
-
- /* not sure if this is needed, since hardware command is #if 0'd */
- spin_lock_irqsave(&cs4218_lock, flags);
- if (beep_playing) {
-#if 0
- st_le16(&beep_dbdma_cmd->command, DBDMA_STOP);
-#endif
- beep_playing = 0;
- }
- spin_unlock_irqrestore(&cs4218_lock, flags);
-}
-
-static DEFINE_TIMER(beep_timer, cs_nosound, 0, 0);
-
-static void cs_mksound(unsigned int hz, unsigned int ticks)
-{
- unsigned long flags;
- int beep_speed = BEEP_SPEED;
- int srate = cs4218_freqs[beep_speed];
- int period, ncycles, nsamples;
- int i, j, f;
- short *p;
- static int beep_hz_cache;
- static int beep_nsamples_cache;
- static int beep_volume_cache;
-
- if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) {
-#if 1
- /* this is a hack for broken X server code */
- hz = 750;
- ticks = 12;
-#else
- /* cancel beep currently playing */
- awacs_nosound(0);
- return;
-#endif
- }
- /* lock while modifying beep_timer */
- spin_lock_irqsave(&cs4218_lock, flags);
- del_timer(&beep_timer);
- if (ticks) {
- beep_timer.expires = jiffies + ticks;
- add_timer(&beep_timer);
- }
- if (beep_playing || sq.active || beep_buf == NULL) {
- spin_unlock_irqrestore(&cs4218_lock, flags);
- return; /* too hard, sorry :-( */
- }
- beep_playing = 1;
-#if 0
- st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS);
-#endif
- spin_unlock_irqrestore(&cs4218_lock, flags);
-
- if (hz == beep_hz_cache && beep_volume == beep_volume_cache) {
- nsamples = beep_nsamples_cache;
- } else {
- period = srate * 256 / hz; /* fixed point */
- ncycles = BEEP_BUFLEN * 256 / period;
- nsamples = (period * ncycles) >> 8;
- f = ncycles * 65536 / nsamples;
- j = 0;
- p = beep_buf;
- for (i = 0; i < nsamples; ++i, p += 2) {
- p[0] = p[1] = beep_wform[j >> 8] * beep_volume;
- j = (j + f) & 0xffff;
- }
- beep_hz_cache = hz;
- beep_volume_cache = beep_volume;
- beep_nsamples_cache = nsamples;
- }
-
-#if 0
- st_le16(&beep_dbdma_cmd->req_count, nsamples*4);
- st_le16(&beep_dbdma_cmd->xfer_status, 0);
- st_le32(&beep_dbdma_cmd->cmd_dep, virt_to_bus(beep_dbdma_cmd));
- st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf));
- awacs_beep_state = 1;
-
- spin_lock_irqsave(&cs4218_lock, flags);
- if (beep_playing) { /* i.e. haven't been terminated already */
- out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
- out_le32(&awacs->control,
- (in_le32(&awacs->control) & ~0x1f00)
- | (beep_speed << 8));
- out_le32(&awacs->byteswap, 0);
- out_le32(&awacs_txdma->cmdptr, virt_to_bus(beep_dbdma_cmd));
- out_le32(&awacs_txdma->control, RUN | (RUN << 16));
- }
- spin_unlock_irqrestore(&cs4218_lock, flags);
-#endif
-}
-
-static MACHINE mach_cs4218 = {
- .owner = THIS_MODULE,
- .name = "HIOX CS4218",
- .name2 = "Built-in Sound",
- .dma_alloc = CS_Alloc,
- .dma_free = CS_Free,
- .irqinit = CS_IrqInit,
-#ifdef MODULE
- .irqcleanup = CS_IrqCleanup,
-#endif /* MODULE */
- .init = CS_Init,
- .silence = CS_Silence,
- .setFormat = CS_SetFormat,
- .setVolume = CS_SetVolume,
- .play = CS_Play
-};
-
-
-/*** Mid level stuff *********************************************************/
-
-
-static void sound_silence(void)
-{
- /* update hardware settings one more */
- (*sound.mach.init)();
-
- (*sound.mach.silence)();
-}
-
-
-static void sound_init(void)
-{
- (*sound.mach.init)();
-}
-
-
-static int sound_set_format(int format)
-{
- return(*sound.mach.setFormat)(format);
-}
-
-
-static int sound_set_speed(int speed)
-{
- if (speed < 0)
- return(sound.soft.speed);
-
- sound.soft.speed = speed;
- (*sound.mach.init)();
- if (sound.minDev == SND_DEV_DSP)
- sound.dsp.speed = sound.soft.speed;
-
- return(sound.soft.speed);
-}
-
-
-static int sound_set_stereo(int stereo)
-{
- if (stereo < 0)
- return(sound.soft.stereo);
-
- stereo = !!stereo; /* should be 0 or 1 now */
-
- sound.soft.stereo = stereo;
- if (sound.minDev == SND_DEV_DSP)
- sound.dsp.stereo = stereo;
- (*sound.mach.init)();
-
- return(stereo);
-}
-
-
-static int sound_set_volume(int volume)
-{
- return(*sound.mach.setVolume)(volume);
-}
-
-static ssize_t sound_copy_translate(const u_char *userPtr,
- size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
-
- switch (sound.soft.format) {
- case AFMT_MU_LAW:
- ct_func = sound.trans_write->ct_ulaw;
- break;
- case AFMT_A_LAW:
- ct_func = sound.trans_write->ct_alaw;
- break;
- case AFMT_S8:
- ct_func = sound.trans_write->ct_s8;
- break;
- case AFMT_U8:
- ct_func = sound.trans_write->ct_u8;
- break;
- case AFMT_S16_BE:
- ct_func = sound.trans_write->ct_s16be;
- break;
- case AFMT_U16_BE:
- ct_func = sound.trans_write->ct_u16be;
- break;
- case AFMT_S16_LE:
- ct_func = sound.trans_write->ct_s16le;
- break;
- case AFMT_U16_LE:
- ct_func = sound.trans_write->ct_u16le;
- break;
- }
- if (ct_func)
- return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
- else
- return 0;
-}
-
-static ssize_t sound_copy_translate_read(const u_char *userPtr,
- size_t userCount,
- u_char frame[], ssize_t *frameUsed,
- ssize_t frameLeft)
-{
- ssize_t (*ct_func)(const u_char *, size_t, u_char *, ssize_t *, ssize_t) = NULL;
-
- switch (sound.soft.format) {
- case AFMT_MU_LAW:
- ct_func = sound.trans_read->ct_ulaw;
- break;
- case AFMT_A_LAW:
- ct_func = sound.trans_read->ct_alaw;
- break;
- case AFMT_S8:
- ct_func = sound.trans_read->ct_s8;
- break;
- case AFMT_U8:
- ct_func = sound.trans_read->ct_u8;
- break;
- case AFMT_S16_BE:
- ct_func = sound.trans_read->ct_s16be;
- break;
- case AFMT_U16_BE:
- ct_func = sound.trans_read->ct_u16be;
- break;
- case AFMT_S16_LE:
- ct_func = sound.trans_read->ct_s16le;
- break;
- case AFMT_U16_LE:
- ct_func = sound.trans_read->ct_u16le;
- break;
- }
- if (ct_func)
- return ct_func(userPtr, userCount, frame, frameUsed, frameLeft);
- else
- return 0;
-}
-
-
-/*
- * /dev/mixer abstraction
- */
-
-static int mixer_open(struct inode *inode, struct file *file)
-{
- mixer.busy = 1;
- return nonseekable_open(inode, file);
-}
-
-
-static int mixer_release(struct inode *inode, struct file *file)
-{
- mixer.busy = 0;
- return 0;
-}
-
-
-static int mixer_ioctl(struct inode *inode, struct file *file, u_int cmd,
- u_long arg)
-{
- int data;
- uint tmpcs;
-
- if (_SIOC_DIR(cmd) & _SIOC_WRITE)
- mixer.modify_counter++;
- if (cmd == OSS_GETVERSION)
- return IOCTL_OUT(arg, SOUND_VERSION);
- switch (cmd) {
- case SOUND_MIXER_INFO: {
- mixer_info info;
- strlcpy(info.id, "CS4218_TDM", sizeof(info.id));
- strlcpy(info.name, "CS4218_TDM", sizeof(info.name));
- info.name[sizeof(info.name)-1] = 0;
- info.modify_counter = mixer.modify_counter;
- if (copy_to_user((int *)arg, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- case SOUND_MIXER_READ_DEVMASK:
- data = SOUND_MASK_VOLUME | SOUND_MASK_LINE
- | SOUND_MASK_MIC | SOUND_MASK_RECLEV
- | SOUND_MASK_ALTPCM;
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_READ_RECMASK:
- data = SOUND_MASK_LINE | SOUND_MASK_MIC;
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_READ_RECSRC:
- if (cs4218_control & CS_DO1)
- data = SOUND_MASK_LINE;
- else
- data = SOUND_MASK_MIC;
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_WRITE_RECSRC:
- IOCTL_IN(arg, data);
- data &= (SOUND_MASK_LINE | SOUND_MASK_MIC);
- if (data & SOUND_MASK_LINE)
- tmpcs = cs4218_control |
- (CS_ISL | CS_ISR | CS_DO1);
- if (data & SOUND_MASK_MIC)
- tmpcs = cs4218_control &
- ~(CS_ISL | CS_ISR | CS_DO1);
- if (tmpcs != cs4218_control)
- cs4218_ctl_write(tmpcs);
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_READ_STEREODEVS:
- data = SOUND_MASK_VOLUME | SOUND_MASK_RECLEV;
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_READ_CAPS:
- return IOCTL_OUT(arg, 0);
- case SOUND_MIXER_READ_VOLUME:
- data = (cs4218_control & CS_MUTE)? 0:
- cs_get_volume(cs4218_control);
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_WRITE_VOLUME:
- IOCTL_IN(arg, data);
- return IOCTL_OUT(arg, sound_set_volume(data));
- case SOUND_MIXER_WRITE_ALTPCM: /* really bell volume */
- IOCTL_IN(arg, data);
- beep_volume = data & 0xff;
- /* fall through */
- case SOUND_MIXER_READ_ALTPCM:
- return IOCTL_OUT(arg, beep_volume);
- case SOUND_MIXER_WRITE_RECLEV:
- IOCTL_IN(arg, data);
- data = cs_set_gain(data);
- return IOCTL_OUT(arg, data);
- case SOUND_MIXER_READ_RECLEV:
- data = cs_get_gain(cs4218_control);
- return IOCTL_OUT(arg, data);
- }
-
- return -EINVAL;
-}
-
-
-static const struct file_operations mixer_fops =
-{
- .owner = THIS_MODULE,
- .llseek = sound_lseek,
- .ioctl = mixer_ioctl,
- .open = mixer_open,
- .release = mixer_release,
-};
-
-
-static void __init mixer_init(void)
-{
- mixer_unit = register_sound_mixer(&mixer_fops, -1);
- if (mixer_unit < 0)
- return;
-
- mixer.busy = 0;
- sound.treble = 0;
- sound.bass = 0;
-
- /* Set Line input, no gain, no attenuation.
- */
- cs4218_control = CS_ISL | CS_ISR | CS_DO1;
- cs4218_control |= CS_LGAIN_SET(0) | CS_RGAIN_SET(0);
- cs4218_control |= CS_LATTEN_SET(0) | CS_RATTEN_SET(0);
- cs4218_ctl_write(cs4218_control);
-}
-
-
-/*
- * Sound queue stuff, the heart of the driver
- */
-
-
-static int sq_allocate_buffers(void)
-{
- int i;
-
- if (sound_buffers)
- return 0;
- sound_buffers = kmalloc (numBufs * sizeof(char *), GFP_KERNEL);
- if (!sound_buffers)
- return -ENOMEM;
- for (i = 0; i < numBufs; i++) {
- sound_buffers[i] = sound.mach.dma_alloc (bufSize << 10, GFP_KERNEL);
- if (!sound_buffers[i]) {
- while (i--)
- sound.mach.dma_free (sound_buffers[i], bufSize << 10);
- kfree (sound_buffers);
- sound_buffers = 0;
- return -ENOMEM;
- }
- }
- return 0;
-}
-
-
-static void sq_release_buffers(void)
-{
- int i;
-
- if (sound_buffers) {
- for (i = 0; i < numBufs; i++)
- sound.mach.dma_free (sound_buffers[i], bufSize << 10);
- kfree (sound_buffers);
- sound_buffers = 0;
- }
-}
-
-
-static int sq_allocate_read_buffers(void)
-{
- int i;
-
- if (sound_read_buffers)
- return 0;
- sound_read_buffers = kmalloc(numReadBufs * sizeof(char *), GFP_KERNEL);
- if (!sound_read_buffers)
- return -ENOMEM;
- for (i = 0; i < numBufs; i++) {
- sound_read_buffers[i] = sound.mach.dma_alloc (readbufSize<<10,
- GFP_KERNEL);
- if (!sound_read_buffers[i]) {
- while (i--)
- sound.mach.dma_free (sound_read_buffers[i],
- readbufSize << 10);
- kfree (sound_read_buffers);
- sound_read_buffers = 0;
- return -ENOMEM;
- }
- }
- return 0;
-}
-
-static void sq_release_read_buffers(void)
-{
- int i;
-
- if (sound_read_buffers) {
- cpmp->cp_smc[1].smc_smcmr &= ~SMCMR_REN;
- for (i = 0; i < numReadBufs; i++)
- sound.mach.dma_free (sound_read_buffers[i],
- bufSize << 10);
- kfree (sound_read_buffers);
- sound_read_buffers = 0;
- }
-}
-
-
-static void sq_setup(int numBufs, int bufSize, char **write_buffers)
-{
- int i;
- volatile cbd_t *bdp;
- volatile cpm8xx_t *cp;
- volatile smc_t *sp;
-
- /* Make sure the SMC transmit is shut down.
- */
- cp = cpmp;
- sp = &cpmp->cp_smc[1];
- sp->smc_smcmr &= ~SMCMR_TEN;
-
- sq.max_count = numBufs;
- sq.max_active = numBufs;
- sq.block_size = bufSize;
- sq.buffers = write_buffers;
-
- sq.front = sq.count = 0;
- sq.rear = -1;
- sq.syncing = 0;
- sq.active = 0;
-
- bdp = tx_base;
- for (i=0; i<numBufs; i++) {
- bdp->cbd_bufaddr = virt_to_bus(write_buffers[i]);
- bdp++;
- }
-
- /* This causes the SMC to sync up with the first buffer again.
- */
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_TX) | CPM_CR_FLG;
- while (cp->cp_cpcr & CPM_CR_FLG);
-}
-
-static void read_sq_setup(int numBufs, int bufSize, char **read_buffers)
-{
- int i;
- volatile cbd_t *bdp;
- volatile cpm8xx_t *cp;
- volatile smc_t *sp;
-
- /* Make sure the SMC receive is shut down.
- */
- cp = cpmp;
- sp = &cpmp->cp_smc[1];
- sp->smc_smcmr &= ~SMCMR_REN;
-
- read_sq.max_count = numBufs;
- read_sq.max_active = numBufs;
- read_sq.block_size = bufSize;
- read_sq.buffers = read_buffers;
-
- read_sq.front = read_sq.count = 0;
- read_sq.rear = 0;
- read_sq.rear_size = 0;
- read_sq.syncing = 0;
- read_sq.active = 0;
-
- bdp = rx_base;
- for (i=0; i<numReadBufs; i++) {
- bdp->cbd_bufaddr = virt_to_bus(read_buffers[i]);
- bdp->cbd_datlen = read_sq.block_size;
- bdp++;
- }
-
- /* This causes the SMC to sync up with the first buffer again.
- */
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2, CPM_CR_INIT_RX) | CPM_CR_FLG;
- while (cp->cp_cpcr & CPM_CR_FLG);
-}
-
-
-static void sq_play(void)
-{
- (*sound.mach.play)();
-}
-
-
-/* ++TeSche: radically changed this one too */
-
-static ssize_t sq_write(struct file *file, const char *src, size_t uLeft,
- loff_t *ppos)
-{
- ssize_t uWritten = 0;
- u_char *dest;
- ssize_t uUsed, bUsed, bLeft;
-
- /* ++TeSche: Is something like this necessary?
- * Hey, that's an honest question! Or does any other part of the
- * filesystem already checks this situation? I really don't know.
- */
- if (uLeft == 0)
- return 0;
-
- /* The interrupt doesn't start to play the last, incomplete frame.
- * Thus we can append to it without disabling the interrupts! (Note
- * also that sq.rear isn't affected by the interrupt.)
- */
-
- if (sq.count > 0 && (bLeft = sq.block_size-sq.rear_size) > 0) {
- dest = sq_block_address(sq.rear);
- bUsed = sq.rear_size;
- uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
- if (uUsed <= 0)
- return uUsed;
- src += uUsed;
- uWritten += uUsed;
- uLeft -= uUsed;
- sq.rear_size = bUsed;
- }
-
- do {
- while (sq.count == sq.max_active) {
- sq_play();
- if (NON_BLOCKING(sq.open_mode))
- return uWritten > 0 ? uWritten : -EAGAIN;
- SLEEP(sq.action_queue);
- if (SIGNAL_RECEIVED)
- return uWritten > 0 ? uWritten : -EINTR;
- }
-
- /* Here, we can avoid disabling the interrupt by first
- * copying and translating the data, and then updating
- * the sq variables. Until this is done, the interrupt
- * won't see the new frame and we can work on it
- * undisturbed.
- */
-
- dest = sq_block_address((sq.rear+1) % sq.max_count);
- bUsed = 0;
- bLeft = sq.block_size;
- uUsed = sound_copy_translate(src, uLeft, dest, &bUsed, bLeft);
- if (uUsed <= 0)
- break;
- src += uUsed;
- uWritten += uUsed;
- uLeft -= uUsed;
- if (bUsed) {
- sq.rear = (sq.rear+1) % sq.max_count;
- sq.rear_size = bUsed;
- sq.count++;
- }
- } while (bUsed); /* uUsed may have been 0 */
-
- sq_play();
-
- return uUsed < 0? uUsed: uWritten;
-}
-
-
-/***********/
-
-/* Here is how the values are used for reading.
- * The value 'active' simply indicates the DMA is running. This is
- * done so the driver semantics are DMA starts when the first read is
- * posted. The value 'front' indicates the buffer we should next
- * send to the user. The value 'rear' indicates the buffer the DMA is
- * currently filling. When 'front' == 'rear' the buffer "ring" is
- * empty (we always have an empty available). The 'rear_size' is used
- * to track partial offsets into the current buffer. Right now, I just keep
- * The DMA running. If the reader can't keep up, the interrupt tosses
- * the oldest buffer. We could also shut down the DMA in this case.
- */
-static ssize_t sq_read(struct file *file, char *dst, size_t uLeft,
- loff_t *ppos)
-{
-
- ssize_t uRead, bLeft, bUsed, uUsed;
-
- if (uLeft == 0)
- return 0;
-
- if (!read_sq.active)
- CS_Record(); /* Kick off the record process. */
-
- uRead = 0;
-
- /* Move what the user requests, depending upon other options.
- */
- while (uLeft > 0) {
-
- /* When front == rear, the DMA is not done yet.
- */
- while (read_sq.front == read_sq.rear) {
- if (NON_BLOCKING(read_sq.open_mode)) {
- return uRead > 0 ? uRead : -EAGAIN;
- }
- SLEEP(read_sq.action_queue);
- if (SIGNAL_RECEIVED)
- return uRead > 0 ? uRead : -EINTR;
- }
-
- /* The amount we move is either what is left in the
- * current buffer or what the user wants.
- */
- bLeft = read_sq.block_size - read_sq.rear_size;
- bUsed = read_sq.rear_size;
- uUsed = sound_copy_translate_read(dst, uLeft,
- read_sq.buffers[read_sq.front], &bUsed, bLeft);
- if (uUsed <= 0)
- return uUsed;
- dst += uUsed;
- uRead += uUsed;
- uLeft -= uUsed;
- read_sq.rear_size += bUsed;
- if (read_sq.rear_size >= read_sq.block_size) {
- read_sq.rear_size = 0;
- read_sq.front++;
- if (read_sq.front >= read_sq.max_active)
- read_sq.front = 0;
- }
- }
- return uRead;
-}
-
-static int sq_open(struct inode *inode, struct file *file)
-{
- int rc = 0;
-
- if (file->f_mode & FMODE_WRITE) {
- if (sq.busy) {
- rc = -EBUSY;
- if (NON_BLOCKING(file->f_flags))
- goto err_out;
- rc = -EINTR;
- while (sq.busy) {
- SLEEP(sq.open_queue);
- if (SIGNAL_RECEIVED)
- goto err_out;
- }
- }
- sq.busy = 1; /* Let's play spot-the-race-condition */
-
- if (sq_allocate_buffers()) goto err_out_nobusy;
-
- sq_setup(numBufs, bufSize<<10,sound_buffers);
- sq.open_mode = file->f_mode;
- }
-
-
- if (file->f_mode & FMODE_READ) {
- if (read_sq.busy) {
- rc = -EBUSY;
- if (NON_BLOCKING(file->f_flags))
- goto err_out;
- rc = -EINTR;
- while (read_sq.busy) {
- SLEEP(read_sq.open_queue);
- if (SIGNAL_RECEIVED)
- goto err_out;
- }
- rc = 0;
- }
- read_sq.busy = 1;
- if (sq_allocate_read_buffers()) goto err_out_nobusy;
-
- read_sq_setup(numReadBufs,readbufSize<<10, sound_read_buffers);
- read_sq.open_mode = file->f_mode;
- }
-
- /* Start up the 4218 by:
- * Reset.
- * Enable, unreset.
- */
- *((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_RSTAUDIO;
- eieio();
- *((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_ENAUDIO;
- mdelay(50);
- *((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
-
- /* We need to send the current control word in case someone
- * opened /dev/mixer and changed things while we were shut
- * down. Chances are good the initialization that follows
- * would have done this, but it is still possible it wouldn't.
- */
- cs4218_ctl_write(cs4218_control);
-
- sound.minDev = iminor(inode) & 0x0f;
- sound.soft = sound.dsp;
- sound.hard = sound.dsp;
- sound_init();
- if ((iminor(inode) & 0x0f) == SND_DEV_AUDIO) {
- sound_set_speed(8000);
- sound_set_stereo(0);
- sound_set_format(AFMT_MU_LAW);
- }
-
- return nonseekable_open(inode, file);
-
-err_out_nobusy:
- if (file->f_mode & FMODE_WRITE) {
- sq.busy = 0;
- WAKE_UP(sq.open_queue);
- }
- if (file->f_mode & FMODE_READ) {
- read_sq.busy = 0;
- WAKE_UP(read_sq.open_queue);
- }
-err_out:
- return rc;
-}
-
-
-static void sq_reset(void)
-{
- sound_silence();
- sq.active = 0;
- sq.count = 0;
- sq.front = (sq.rear+1) % sq.max_count;
-#if 0
- init_tdm_buffers();
-#endif
-}
-
-
-static int sq_fsync(struct file *filp, struct dentry *dentry)
-{
- int rc = 0;
-
- sq.syncing = 1;
- sq_play(); /* there may be an incomplete frame waiting */
-
- while (sq.active) {
- SLEEP(sq.sync_queue);
- if (SIGNAL_RECEIVED) {
- /* While waiting for audio output to drain, an
- * interrupt occurred. Stop audio output immediately
- * and clear the queue. */
- sq_reset();
- rc = -EINTR;
- break;
- }
- }
-
- sq.syncing = 0;
- return rc;
-}
-
-static int sq_release(struct inode *inode, struct file *file)
-{
- int rc = 0;
-
- if (sq.busy)
- rc = sq_fsync(file, file->f_path.dentry);
- sound.soft = sound.dsp;
- sound.hard = sound.dsp;
- sound_silence();
-
- sq_release_read_buffers();
- sq_release_buffers();
-
- if (file->f_mode & FMODE_READ) {
- read_sq.busy = 0;
- WAKE_UP(read_sq.open_queue);
- }
-
- if (file->f_mode & FMODE_WRITE) {
- sq.busy = 0;
- WAKE_UP(sq.open_queue);
- }
-
- /* Shut down the SMC.
- */
- cpmp->cp_smc[1].smc_smcmr &= ~(SMCMR_TEN | SMCMR_REN);
-
- /* Shut down the codec.
- */
- *((volatile uint *)HIOX_CSR4_ADDR) |= HIOX_CSR4_RSTAUDIO;
- eieio();
- *((volatile uint *)HIOX_CSR4_ADDR) &= ~HIOX_CSR4_ENAUDIO;
-
- /* Wake up a process waiting for the queue being released.
- * Note: There may be several processes waiting for a call
- * to open() returning. */
-
- return rc;
-}
-
-
-static int sq_ioctl(struct inode *inode, struct file *file, u_int cmd,
- u_long arg)
-{
- u_long fmt;
- int data;
-#if 0
- int size, nbufs;
-#else
- int size;
-#endif
-
- switch (cmd) {
- case SNDCTL_DSP_RESET:
- sq_reset();
- return 0;
- case SNDCTL_DSP_POST:
- case SNDCTL_DSP_SYNC:
- return sq_fsync(file, file->f_path.dentry);
-
- /* ++TeSche: before changing any of these it's
- * probably wise to wait until sound playing has
- * settled down. */
- case SNDCTL_DSP_SPEED:
- sq_fsync(file, file->f_path.dentry);
- IOCTL_IN(arg, data);
- return IOCTL_OUT(arg, sound_set_speed(data));
- case SNDCTL_DSP_STEREO:
- sq_fsync(file, file->f_path.dentry);
- IOCTL_IN(arg, data);
- return IOCTL_OUT(arg, sound_set_stereo(data));
- case SOUND_PCM_WRITE_CHANNELS:
- sq_fsync(file, file->f_path.dentry);
- IOCTL_IN(arg, data);
- return IOCTL_OUT(arg, sound_set_stereo(data-1)+1);
- case SNDCTL_DSP_SETFMT:
- sq_fsync(file, file->f_path.dentry);
- IOCTL_IN(arg, data);
- return IOCTL_OUT(arg, sound_set_format(data));
- case SNDCTL_DSP_GETFMTS:
- fmt = 0;
- if (sound.trans_write) {
- if (sound.trans_write->ct_ulaw)
- fmt |= AFMT_MU_LAW;
- if (sound.trans_write->ct_alaw)
- fmt |= AFMT_A_LAW;
- if (sound.trans_write->ct_s8)
- fmt |= AFMT_S8;
- if (sound.trans_write->ct_u8)
- fmt |= AFMT_U8;
- if (sound.trans_write->ct_s16be)
- fmt |= AFMT_S16_BE;
- if (sound.trans_write->ct_u16be)
- fmt |= AFMT_U16_BE;
- if (sound.trans_write->ct_s16le)
- fmt |= AFMT_S16_LE;
- if (sound.trans_write->ct_u16le)
- fmt |= AFMT_U16_LE;
- }
- return IOCTL_OUT(arg, fmt);
- case SNDCTL_DSP_GETBLKSIZE:
- size = sq.block_size
- * sound.soft.size * (sound.soft.stereo + 1)
- / (sound.hard.size * (sound.hard.stereo + 1));
- return IOCTL_OUT(arg, size);
- case SNDCTL_DSP_SUBDIVIDE:
- break;
-#if 0 /* Sorry can't do this at the moment. The CPM allocated buffers
- * long ago that can't be changed.
- */
- case SNDCTL_DSP_SETFRAGMENT:
- if (sq.count || sq.active || sq.syncing)
- return -EINVAL;
- IOCTL_IN(arg, size);
- nbufs = size >> 16;
- if (nbufs < 2 || nbufs > numBufs)
- nbufs = numBufs;
- size &= 0xffff;
- if (size >= 8 && size <= 30) {
- size = 1 << size;
- size *= sound.hard.size * (sound.hard.stereo + 1);
- size /= sound.soft.size * (sound.soft.stereo + 1);
- if (size > (bufSize << 10))
- size = bufSize << 10;
- } else
- size = bufSize << 10;
- sq_setup(numBufs, size, sound_buffers);
- sq.max_active = nbufs;
- return 0;
-#endif
-
- default:
- return mixer_ioctl(inode, file, cmd, arg);
- }
- return -EINVAL;
-}
-
-
-
-static const struct file_operations sq_fops =
-{
- .owner = THIS_MODULE,
- .llseek = sound_lseek,
- .read = sq_read, /* sq_read */
- .write = sq_write,
- .ioctl = sq_ioctl,
- .open = sq_open,
- .release = sq_release,
-};
-
-
-static void __init sq_init(void)
-{
- sq_unit = register_sound_dsp(&sq_fops, -1);
- if (sq_unit < 0)
- return;
-
- init_waitqueue_head(&sq.action_queue);
- init_waitqueue_head(&sq.open_queue);
- init_waitqueue_head(&sq.sync_queue);
- init_waitqueue_head(&read_sq.action_queue);
- init_waitqueue_head(&read_sq.open_queue);
- init_waitqueue_head(&read_sq.sync_queue);
-
- sq.busy = 0;
- read_sq.busy = 0;
-
- /* whatever you like as startup mode for /dev/dsp,
- * (/dev/audio hasn't got a startup mode). note that
- * once changed a new open() will *not* restore these!
- */
- sound.dsp.format = AFMT_S16_BE;
- sound.dsp.stereo = 1;
- sound.dsp.size = 16;
-
- /* set minimum rate possible without expanding */
- sound.dsp.speed = 8000;
-
- /* before the first open to /dev/dsp this wouldn't be set */
- sound.soft = sound.dsp;
- sound.hard = sound.dsp;
-
- sound_silence();
-}
-
-/*
- * /dev/sndstat
- */
-
-
-/* state.buf should not overflow! */
-
-static int state_open(struct inode *inode, struct file *file)
-{
- char *buffer = state.buf, *mach = "", cs4218_buf[50];
- int len = 0;
-
- if (state.busy)
- return -EBUSY;
-
- state.ptr = 0;
- state.busy = 1;
-
- sprintf(cs4218_buf, "Crystal CS4218 on TDM, ");
- mach = cs4218_buf;
-
- len += sprintf(buffer+len, "%sDMA sound driver:\n", mach);
-
- len += sprintf(buffer+len, "\tsound.format = 0x%x", sound.soft.format);
- switch (sound.soft.format) {
- case AFMT_MU_LAW:
- len += sprintf(buffer+len, " (mu-law)");
- break;
- case AFMT_A_LAW:
- len += sprintf(buffer+len, " (A-law)");
- break;
- case AFMT_U8:
- len += sprintf(buffer+len, " (unsigned 8 bit)");
- break;
- case AFMT_S8:
- len += sprintf(buffer+len, " (signed 8 bit)");
- break;
- case AFMT_S16_BE:
- len += sprintf(buffer+len, " (signed 16 bit big)");
- break;
- case AFMT_U16_BE:
- len += sprintf(buffer+len, " (unsigned 16 bit big)");
- break;
- case AFMT_S16_LE:
- len += sprintf(buffer+len, " (signed 16 bit little)");
- break;
- case AFMT_U16_LE:
- len += sprintf(buffer+len, " (unsigned 16 bit little)");
- break;
- }
- len += sprintf(buffer+len, "\n");
- len += sprintf(buffer+len, "\tsound.speed = %dHz (phys. %dHz)\n",
- sound.soft.speed, sound.hard.speed);
- len += sprintf(buffer+len, "\tsound.stereo = 0x%x (%s)\n",
- sound.soft.stereo, sound.soft.stereo ? "stereo" : "mono");
- len += sprintf(buffer+len, "\tsq.block_size = %d sq.max_count = %d"
- " sq.max_active = %d\n",
- sq.block_size, sq.max_count, sq.max_active);
- len += sprintf(buffer+len, "\tsq.count = %d sq.rear_size = %d\n", sq.count,
- sq.rear_size);
- len += sprintf(buffer+len, "\tsq.active = %d sq.syncing = %d\n",
- sq.active, sq.syncing);
- state.len = len;
- return nonseekable_open(inode, file);
-}
-
-
-static int state_release(struct inode *inode, struct file *file)
-{
- state.busy = 0;
- return 0;
-}
-
-
-static ssize_t state_read(struct file *file, char *buf, size_t count,
- loff_t *ppos)
-{
- int n = state.len - state.ptr;
- if (n > count)
- n = count;
- if (n <= 0)
- return 0;
- if (copy_to_user(buf, &state.buf[state.ptr], n))
- return -EFAULT;
- state.ptr += n;
- return n;
-}
-
-
-static const struct file_operations state_fops =
-{
- .owner = THIS_MODULE,
- .llseek = sound_lseek,
- .read = state_read,
- .open = state_open,
- .release = state_release,
-};
-
-
-static void __init state_init(void)
-{
- state_unit = register_sound_special(&state_fops, SND_DEV_STATUS);
- if (state_unit < 0)
- return;
- state.busy = 0;
-}
-
-
-/*** Common stuff ********************************************************/
-
-static long long sound_lseek(struct file *file, long long offset, int orig)
-{
- return -ESPIPE;
-}
-
-
-/*** Config & Setup **********************************************************/
-
-
-int __init tdm8xx_sound_init(void)
-{
- int i, has_sound;
- uint dp_offset;
- volatile uint *sirp;
- volatile cbd_t *bdp;
- volatile cpm8xx_t *cp;
- volatile smc_t *sp;
- volatile smc_uart_t *up;
- volatile immap_t *immap;
-
- has_sound = 0;
-
- /* Program the SI/TSA to use TDMa, connected to SMC2, for 4 bytes.
- */
- cp = cpmp; /* Get pointer to Communication Processor */
- immap = (immap_t *)IMAP_ADDR; /* and to internal registers */
-
- /* Set all TDMa control bits to zero. This enables most features
- * we want.
- */
- cp->cp_simode &= ~0x00000fff;
-
- /* Enable common receive/transmit clock pins, use IDL format.
- * Sync on falling edge, transmit rising clock, receive falling
- * clock, delay 1 bit on both Tx and Rx. Common Tx/Rx clocks and
- * sync.
- * Connect SMC2 to TSA.
- */
- cp->cp_simode |= 0x80000141;
-
- /* Configure port A pins for TDMa operation.
- * The RPX-Lite (MPC850/823) loses SMC2 when TDM is used.
- */
- immap->im_ioport.iop_papar |= 0x01c0; /* Enable TDMa functions */
- immap->im_ioport.iop_padir |= 0x00c0; /* Enable TDMa Tx/Rx */
- immap->im_ioport.iop_padir &= ~0x0100; /* Enable L1RCLKa */
-
- immap->im_ioport.iop_pcpar |= 0x0800; /* Enable L1RSYNCa */
- immap->im_ioport.iop_pcdir &= ~0x0800;
-
- /* Initialize the SI TDM routing table. We use TDMa only.
- * The receive table and transmit table each have only one
- * entry, to capture/send four bytes after each frame pulse.
- * The 16-bit ram entry is 0000 0001 1000 1111. (SMC2)
- */
- cp->cp_sigmr = 0;
- sirp = (uint *)cp->cp_siram;
-
- *sirp = 0x018f0000; /* Receive entry */
- sirp += 64;
- *sirp = 0x018f0000; /* Tramsmit entry */
-
- /* Enable single TDMa routing.
- */
- cp->cp_sigmr = 0x04;
-
- /* Initialize the SMC for transparent operation.
- */
- sp = &cpmp->cp_smc[1];
- up = (smc_uart_t *)&cp->cp_dparam[PROFF_SMC2];
-
- /* We need to allocate a transmit and receive buffer
- * descriptors from dual port ram.
- */
- dp_addr = cpm_dpalloc(sizeof(cbd_t) * numReadBufs, 8);
-
- /* Set the physical address of the host memory
- * buffers in the buffer descriptors, and the
- * virtual address for us to work with.
- */
- bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
- up->smc_rbase = dp_offset;
- rx_cur = rx_base = (cbd_t *)bdp;
-
- for (i=0; i<(numReadBufs-1); i++) {
- bdp->cbd_bufaddr = 0;
- bdp->cbd_datlen = 0;
- bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
- bdp++;
- }
- bdp->cbd_bufaddr = 0;
- bdp->cbd_datlen = 0;
- bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
-
- /* Now, do the same for the transmit buffers.
- */
- dp_offset = cpm_dpalloc(sizeof(cbd_t) * numBufs, 8);
-
- bdp = (cbd_t *)&cp->cp_dpmem[dp_addr];
- up->smc_tbase = dp_offset;
- tx_cur = tx_base = (cbd_t *)bdp;
-
- for (i=0; i<(numBufs-1); i++) {
- bdp->cbd_bufaddr = 0;
- bdp->cbd_datlen = 0;
- bdp->cbd_sc = BD_SC_INTRPT;
- bdp++;
- }
- bdp->cbd_bufaddr = 0;
- bdp->cbd_datlen = 0;
- bdp->cbd_sc = (BD_SC_WRAP | BD_SC_INTRPT);
-
- /* Set transparent SMC mode.
- * A few things are specific to our application. The codec interface
- * is MSB first, hence the REVD selection. The CD/CTS pulse are
- * used by the TSA to indicate the frame start to the SMC.
- */
- up->smc_rfcr = SCC_EB;
- up->smc_tfcr = SCC_EB;
- up->smc_mrblr = readbufSize * 1024;
-
- /* Set 16-bit reversed data, transparent mode.
- */
- sp->smc_smcmr = smcr_mk_clen(15) |
- SMCMR_SM_TRANS | SMCMR_REVD | SMCMR_BS;
-
- /* Enable and clear events.
- * Because of FIFO delays, all we need is the receive interrupt
- * and we can process both the current receive and current
- * transmit interrupt within a few microseconds of the transmit.
- */
- sp->smc_smce = 0xff;
- sp->smc_smcm = SMCM_TXE | SMCM_TX | SMCM_RX;
-
- /* Send the CPM an initialize command.
- */
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
- CPM_CR_INIT_TRX) | CPM_CR_FLG;
- while (cp->cp_cpcr & CPM_CR_FLG);
-
- sound.mach = mach_cs4218;
- has_sound = 1;
-
- /* Initialize beep stuff */
- orig_mksound = kd_mksound;
- kd_mksound = cs_mksound;
- beep_buf = kmalloc(BEEP_BUFLEN * 4, GFP_KERNEL);
- if (beep_buf == NULL)
- printk(KERN_WARNING "dmasound: no memory for "
- "beep buffer\n");
-
- if (!has_sound)
- return -ENODEV;
-
- /* Initialize the software SPI.
- */
- sw_spi_init();
-
- /* Set up sound queue, /dev/audio and /dev/dsp. */
-
- /* Set default settings. */
- sq_init();
-
- /* Set up /dev/sndstat. */
- state_init();
-
- /* Set up /dev/mixer. */
- mixer_init();
-
- if (!sound.mach.irqinit()) {
- printk(KERN_ERR "DMA sound driver: Interrupt initialization failed\n");
- return -ENODEV;
- }
-#ifdef MODULE
- irq_installed = 1;
-#endif
-
- printk(KERN_INFO "DMA sound driver installed, using %d buffers of %dk.\n",
- numBufs, bufSize);
-
- return 0;
-}
-
-/* Due to FIFOs and bit delays, the transmit interrupt occurs a few
- * microseconds ahead of the receive interrupt.
- * When we get an interrupt, we service the transmit first, then
- * check for a receive to prevent the overhead of returning through
- * the interrupt handler only to get back here right away during
- * full duplex operation.
- */
-static void
-cs4218_intr(void *dev_id)
-{
- volatile smc_t *sp;
- volatile cpm8xx_t *cp;
-
- sp = &cpmp->cp_smc[1];
-
- if (sp->smc_smce & SCCM_TX) {
- sp->smc_smce = SCCM_TX;
- cs4218_tdm_tx_intr((void *)sp);
- }
-
- if (sp->smc_smce & SCCM_RX) {
- sp->smc_smce = SCCM_RX;
- cs4218_tdm_rx_intr((void *)sp);
- }
-
- if (sp->smc_smce & SCCM_TXE) {
- /* Transmit underrun. This happens with the application
- * didn't keep up sending buffers. We tell the SMC to
- * restart, which will cause it to poll the current (next)
- * BD. If the user supplied data since this occurred,
- * we just start running again. If they didn't, the SMC
- * will poll the descriptor until data is placed there.
- */
- sp->smc_smce = SCCM_TXE;
- cp = cpmp; /* Get pointer to Communication Processor */
- cp->cp_cpcr = mk_cr_cmd(CPM_CR_CH_SMC2,
- CPM_CR_RESTART_TX) | CPM_CR_FLG;
- while (cp->cp_cpcr & CPM_CR_FLG);
- }
-}
-
-
-#define MAXARGS 8 /* Should be sufficient for now */
-
-void __init dmasound_setup(char *str, int *ints)
-{
- /* check the bootstrap parameter for "dmasound=" */
-
- switch (ints[0]) {
- case 3:
- if ((ints[3] < 0) || (ints[3] > MAX_CATCH_RADIUS))
- printk("dmasound_setup: invalid catch radius, using default = %d\n", catchRadius);
- else
- catchRadius = ints[3];
- /* fall through */
- case 2:
- if (ints[1] < MIN_BUFFERS)
- printk("dmasound_setup: invalid number of buffers, using default = %d\n", numBufs);
- else
- numBufs = ints[1];
- if (ints[2] < MIN_BUFSIZE || ints[2] > MAX_BUFSIZE)
- printk("dmasound_setup: invalid buffer size, using default = %d\n", bufSize);
- else
- bufSize = ints[2];
- break;
- case 0:
- break;
- default:
- printk("dmasound_setup: invalid number of arguments\n");
- }
-}
-
-/* Software SPI functions.
- * These are on Port B.
- */
-#define PB_SPICLK ((uint)0x00000002)
-#define PB_SPIMOSI ((uint)0x00000004)
-#define PB_SPIMISO ((uint)0x00000008)
-
-static
-void sw_spi_init(void)
-{
- volatile cpm8xx_t *cp;
- volatile uint *hcsr4;
-
- hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
- cp = cpmp; /* Get pointer to Communication Processor */
-
- *hcsr4 &= ~HIOX_CSR4_AUDSPISEL; /* Disable SPI select */
-
- /* Make these Port B signals general purpose I/O.
- * First, make sure the clock is low.
- */
- cp->cp_pbdat &= ~PB_SPICLK;
- cp->cp_pbpar &= ~(PB_SPICLK | PB_SPIMOSI | PB_SPIMISO);
-
- /* Clock and Master Output are outputs.
- */
- cp->cp_pbdir |= (PB_SPICLK | PB_SPIMOSI);
-
- /* Master Input.
- */
- cp->cp_pbdir &= ~PB_SPIMISO;
-
-}
-
-/* Write the CS4218 control word out the SPI port. While the
- * the control word is going out, the status word is arriving.
- */
-static
-uint cs4218_ctl_write(uint ctlreg)
-{
- uint status;
-
- sw_spi_io((u_char *)&ctlreg, (u_char *)&status, 4);
-
- /* Shadow the control register.....I guess we could do
- * the same for the status, but for now we just return it
- * and let the caller decide.
- */
- cs4218_control = ctlreg;
- return status;
-}
-
-static
-void sw_spi_io(u_char *obuf, u_char *ibuf, uint bcnt)
-{
- int bits, i;
- u_char outbyte, inbyte;
- volatile cpm8xx_t *cp;
- volatile uint *hcsr4;
-
- hcsr4 = (volatile uint *)HIOX_CSR4_ADDR;
- cp = cpmp; /* Get pointer to Communication Processor */
-
- /* The timing on the bus is pretty slow. Code inefficiency
- * and eieio() is our friend here :-).
- */
- cp->cp_pbdat &= ~PB_SPICLK;
- *hcsr4 |= HIOX_CSR4_AUDSPISEL; /* Enable SPI select */
- eieio();
-
- /* Clock in/out the bytes. Data is valid on the falling edge
- * of the clock. Data is MSB first.
- */
- for (i=0; i<bcnt; i++) {
- outbyte = *obuf++;
- inbyte = 0;
- for (bits=0; bits<8; bits++) {
- eieio();
- cp->cp_pbdat |= PB_SPICLK;
- eieio();
- if (outbyte & 0x80)
- cp->cp_pbdat |= PB_SPIMOSI;
- else
- cp->cp_pbdat &= ~PB_SPIMOSI;
- eieio();
- cp->cp_pbdat &= ~PB_SPICLK;
- eieio();
- outbyte <<= 1;
- inbyte <<= 1;
- if (cp->cp_pbdat & PB_SPIMISO)
- inbyte |= 1;
- }
- *ibuf++ = inbyte;
- }
-
- *hcsr4 &= ~HIOX_CSR4_AUDSPISEL; /* Disable SPI select */
- eieio();
-}
-
-void cleanup_module(void)
-{
- if (irq_installed) {
- sound_silence();
-#ifdef MODULE
- sound.mach.irqcleanup();
-#endif
- }
-
- sq_release_read_buffers();
- sq_release_buffers();
-
- if (mixer_unit >= 0)
- unregister_sound_mixer(mixer_unit);
- if (state_unit >= 0)
- unregister_sound_special(state_unit);
- if (sq_unit >= 0)
- unregister_sound_dsp(sq_unit);
-}
-
-module_init(tdm8xx_sound_init);
-module_exit(cleanup_module);
-
-
-
^ permalink raw reply
* Re: Current kernel with all patches for MPC5200
From: roger blofeld @ 2007-04-28 17:58 UTC (permalink / raw)
To: linuxppc-embedded
Matthias,
I would suggest http://git.secretlab.ca/cgi-bin/gitweb.cgi or http://gitbits.246tnt.com/gitweb/gitweb.cgi?p=linux-2.6-mpc52xx.git;a=summary or www.denx.de as starting points.
Does anyone know if patches from these repositories are destined to be in the mainline kernel any time soon? Last I heard 2.6.22 was the target to get things like Bestcomm support in Linus' kernel.
-roger
----- Original Message ----
From: Matthias Fechner <idefix@fechner.net>
To: linuxppc-embedded@ozlabs.org
Sent: Saturday, April 28, 2007 11:44:22 AM
Subject: Current kernel with all patches for MPC5200
Hi,
is there a repository available with all the patches postet the last
days/weeks on this mailinglist included?
If yes how could I access that repository?
Best regards,
Matthias
--
"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook
_______________________________________________
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^ permalink raw reply
* Current kernel with all patches for MPC5200
From: Matthias Fechner @ 2007-04-28 16:44 UTC (permalink / raw)
To: linuxppc-embedded
Hi,
is there a repository available with all the patches postet the last
days/weeks on this mailinglist included?
If yes how could I access that repository?
Best regards,
Matthias
--
"Programming today is a race between software engineers striving to
build bigger and better idiot-proof programs, and the universe trying to
produce bigger and better idiots. So far, the universe is winning." --
Rich Cook
^ permalink raw reply
* Re: [PATCH 2/2] Rename get_property to of_get_property: drivers/net
From: Jeff Garzik @ 2007-04-28 15:30 UTC (permalink / raw)
To: Stephen Rothwell, paulus, akpm; +Cc: ppc-dev, netdev
In-Reply-To: <20070427145508.9c5641a2.sfr@canb.auug.org.au>
Stephen Rothwell wrote:
> This is part of the consolidation of the OpenFirmware code ebtween
> PowerPC and Sparc.
>
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
> drivers/net/bmac.c | 5 +++--
> drivers/net/ehea/ehea_main.c | 6 +++---
> drivers/net/mace.c | 4 ++--
> drivers/net/pasemi_mac.c | 2 +-
> drivers/net/spider_net.c | 4 ++--
> drivers/net/sungem.c | 2 +-
> drivers/net/sungem_phy.c | 2 +-
> drivers/net/ucc_geth.c | 18 +++++++++---------
> drivers/net/ucc_geth_mii.c | 4 ++--
> 9 files changed, 24 insertions(+), 23 deletions(-)
>
> Jeff,
>
> This patch is based on a merge between Paulus' for-2.6.22 tree and your
> upstream tree. As such it depends on changes in Paulus' tree to be
> merged first. This patch was originally in Paulus' tree but has been
> reverted from there.
Sorry for your being a football here.
AFAICS, looking at the two patches, it seems clear they should go in via
Paulus's tree. There are clear dependencies, and it is clearly
arch-specific code.
If anything, it sounds like I should drop a ucc_geth patch or two from
my tree. Is that the case?
Jeff
^ permalink raw reply
* Re: [PATCH] powermac: proper sleep management
From: Johannes Berg @ 2007-04-28 13:46 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <17971.14223.435220.418649@cargo.ozlabs.ibm.com>
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On Sat, 2007-04-28 at 22:01 +1000, Paul Mackerras wrote:
> I would very much rather that we keep the existing code path intact
> and add the code to suspend via /sys/power/state as a separate code
> path.
Are you serious? The only thing the generic code does here is invoke our
stuff in the right order. That shouldn't be too much of a constraint. We
don't even have multiple CPUs or anything that was recently giving
problems.
> I am not confident enough about the state of the generic
> suspend/resume code to commit to using it as the only way to suspend
> to RAM, given how many bugs it seems to have (as evidenced by the
> number of suspend-related bugs in Adrian Bunk's regression lists, for
> instance).
Of the suspend related bugs Adrian's regression list most aren't really
related to the generic code we rely on, especially since all machines
this code applies to are single-CPU. Besides, relying on it is the only
way to ensure it stays compatible.
johannes
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^ permalink raw reply
* Re: [PATCH] powermac: proper sleep management
From: Johannes Berg @ 2007-04-28 12:52 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <17971.256.739516.106925@cargo.ozlabs.ibm.com>
[-- Attachment #1: Type: text/plain, Size: 480 bytes --]
On Sat, 2007-04-28 at 18:08 +1000, Paul Mackerras wrote:
> Johannes Berg writes:
>
> > +What: /dev/pmu suspend/can-suspend ioctls
> > +When: 2.6.24
>
> No way. You're proposing to remove a kernel/user ABI which is
> actively being used by many users. It needs to stick around for at
> least 2 years before we make it non-functional.
Heh, ok, let's push the timeline out then. Don't really care anyway
since the feature now has about 10 lines of code.
johannes
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^ permalink raw reply
* Re: [PATCH] powermac: proper sleep management
From: Johannes Berg @ 2007-04-28 12:51 UTC (permalink / raw)
To: Benjamin Herrenschmidt; +Cc: linuxppc-dev, Paul Mackerras
In-Reply-To: <1177749491.14873.348.camel@localhost.localdomain>
[-- Attachment #1: Type: text/plain, Size: 235 bytes --]
On Sat, 2007-04-28 at 18:38 +1000, Benjamin Herrenschmidt wrote:
> What happened to moving that code out of the PMU driver ?
It was a separate patch and also buggy and had feature regressions. So I
left it for now.
johannes
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^ permalink raw reply
* Re: [PATCH] powermac: proper sleep management
From: Paul Mackerras @ 2007-04-28 12:01 UTC (permalink / raw)
To: Johannes Berg; +Cc: linuxppc-dev
In-Reply-To: <1177746562.3448.10.camel@johannes.berg>
Johannes Berg writes:
> After having removed the power management ops from powermac completely, this
> patch adds them back for PMU based machines, directly in the PMU driver.
> This finally allows suspending via /sys/power/state on powerbooks.
I would very much rather that we keep the existing code path intact
and add the code to suspend via /sys/power/state as a separate code
path. I am not confident enough about the state of the generic
suspend/resume code to commit to using it as the only way to suspend
to RAM, given how many bugs it seems to have (as evidenced by the
number of suspend-related bugs in Adrian Bunk's regression lists, for
instance).
I don't mind code being factored out into helpers, or moved from one
file to another, as long as the control flow for the old sleep ioctl
remains essentially unchanged, for now.
Paul.
^ permalink raw reply
* Re: [PATCH] powermac: proper sleep management
From: Benjamin Herrenschmidt @ 2007-04-28 8:38 UTC (permalink / raw)
To: Johannes Berg; +Cc: linuxppc-dev, Paul Mackerras
In-Reply-To: <1177746562.3448.10.camel@johannes.berg>
On Sat, 2007-04-28 at 09:49 +0200, Johannes Berg wrote:
> After having removed the power management ops from powermac completely, this
> patch adds them back for PMU based machines, directly in the PMU driver.
> This finally allows suspending via /sys/power/state on powerbooks.
>
> The patch also replaces the PMU ioctl with a simple call to
> pm_suspend(PM_SUSPEND_MEM) and puts the sleep-related PMU ioctls onto the
> feature-removal schedule.
What happened to moving that code out of the PMU driver ?
Cheers,
Ben.
^ permalink raw reply
* Re: [PATCH] powermac: proper sleep management
From: Paul Mackerras @ 2007-04-28 8:08 UTC (permalink / raw)
To: Johannes Berg; +Cc: linuxppc-dev
In-Reply-To: <1177746562.3448.10.camel@johannes.berg>
Johannes Berg writes:
> +What: /dev/pmu suspend/can-suspend ioctls
> +When: 2.6.24
No way. You're proposing to remove a kernel/user ABI which is
actively being used by many users. It needs to stick around for at
least 2 years before we make it non-functional.
Paul.
^ permalink raw reply
* [PATCH] powermac: proper sleep management
From: Johannes Berg @ 2007-04-28 7:49 UTC (permalink / raw)
To: Paul Mackerras; +Cc: linuxppc-dev
In-Reply-To: <17969.56735.644629.328360@cargo.ozlabs.ibm.com>
After having removed the power management ops from powermac completely, this
patch adds them back for PMU based machines, directly in the PMU driver.
This finally allows suspending via /sys/power/state on powerbooks.
The patch also replaces the PMU ioctl with a simple call to
pm_suspend(PM_SUSPEND_MEM) and puts the sleep-related PMU ioctls onto the
feature-removal schedule.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
This was tested on slightly older machines by David Woodhouse and by me
on my PowerBook5,6. It will apply, build and suspend-to-ram will work
against current kernels (the arch suspend hooks have been merged via
Greg KH) but it will break suspend to disk if working. This is addressed
by a patch to the generic code that Andrew Morton has and will be
sending soon under the title "rework pm_ops pm_disk_mode, kill misuse".
---
Documentation/feature-removal-schedule.txt | 10
drivers/macintosh/via-pmu.c | 329 +++++++++++++----------------
2 files changed, 159 insertions(+), 180 deletions(-)
--- linux-2.6.orig/drivers/macintosh/via-pmu.c 2007-04-27 23:56:19.176021121 +0200
+++ linux-2.6/drivers/macintosh/via-pmu.c 2007-04-28 09:45:25.746883531 +0200
@@ -61,6 +61,10 @@
#include <asm/cputable.h>
#include <asm/time.h>
#include <asm/backlight.h>
+#include <asm/suspend.h>
+
+/* remove when we don't need kernel_power_off any more */
+#include <linux/reboot.h>
#include "via-pmu-event.h"
@@ -155,9 +159,6 @@ static int drop_interrupts;
#if defined(CONFIG_PM) && defined(CONFIG_PPC32)
static int option_lid_wakeup = 1;
#endif /* CONFIG_PM && CONFIG_PPC32 */
-#if (defined(CONFIG_PM)&&defined(CONFIG_PPC32))||defined(CONFIG_PMAC_BACKLIGHT_LEGACY)
-static int sleep_in_progress;
-#endif
static unsigned long async_req_locks;
static unsigned int pmu_irq_stats[11];
@@ -1991,132 +1992,6 @@ restore_via_state(void)
extern void pmu_backlight_set_sleep(int sleep);
-static int
-pmac_suspend_devices(void)
-{
- int ret;
-
- pm_prepare_console();
-
- /* Notify old-style device drivers */
- broadcast_sleep(PBOOK_SLEEP_REQUEST);
-
- /* Sync the disks. */
- /* XXX It would be nice to have some way to ensure that
- * nobody is dirtying any new buffers while we wait. That
- * could be achieved using the refrigerator for processes
- * that swsusp uses
- */
- sys_sync();
-
- broadcast_sleep(PBOOK_SLEEP_NOW);
-
- /* Send suspend call to devices, hold the device core's dpm_sem */
- ret = device_suspend(PMSG_SUSPEND);
- if (ret) {
- broadcast_wake();
- printk(KERN_ERR "Driver sleep failed\n");
- return -EBUSY;
- }
-
-#ifdef CONFIG_PMAC_BACKLIGHT
- /* Tell backlight code not to muck around with the chip anymore */
- pmu_backlight_set_sleep(1);
-#endif
-
- /* Call platform functions marked "on sleep" */
- pmac_pfunc_i2c_suspend();
- pmac_pfunc_base_suspend();
-
- /* Stop preemption */
- preempt_disable();
-
- /* Make sure the decrementer won't interrupt us */
- asm volatile("mtdec %0" : : "r" (0x7fffffff));
- /* Make sure any pending DEC interrupt occurring while we did
- * the above didn't re-enable the DEC */
- mb();
- asm volatile("mtdec %0" : : "r" (0x7fffffff));
-
- /* We can now disable MSR_EE. This code of course works properly only
- * on UP machines... For SMP, if we ever implement sleep, we'll have to
- * stop the "other" CPUs way before we do all that stuff.
- */
- local_irq_disable();
-
- /* Broadcast power down irq
- * This isn't that useful in most cases (only directly wired devices can
- * use this but still... This will take care of sysdev's as well, so
- * we exit from here with local irqs disabled and PIC off.
- */
- ret = device_power_down(PMSG_SUSPEND);
- if (ret) {
- wakeup_decrementer();
- local_irq_enable();
- preempt_enable();
- device_resume();
- broadcast_wake();
- printk(KERN_ERR "Driver powerdown failed\n");
- return -EBUSY;
- }
-
- /* Wait for completion of async requests */
- while (!batt_req.complete)
- pmu_poll();
-
- /* Giveup the lazy FPU & vec so we don't have to back them
- * up from the low level code
- */
- enable_kernel_fp();
-
-#ifdef CONFIG_ALTIVEC
- if (cpu_has_feature(CPU_FTR_ALTIVEC))
- enable_kernel_altivec();
-#endif /* CONFIG_ALTIVEC */
-
- return 0;
-}
-
-static int
-pmac_wakeup_devices(void)
-{
- mdelay(100);
-
-#ifdef CONFIG_PMAC_BACKLIGHT
- /* Tell backlight code it can use the chip again */
- pmu_backlight_set_sleep(0);
-#endif
-
- /* Power back up system devices (including the PIC) */
- device_power_up();
-
- /* Force a poll of ADB interrupts */
- adb_int_pending = 1;
- via_pmu_interrupt(0, NULL);
-
- /* Restart jiffies & scheduling */
- wakeup_decrementer();
-
- /* Re-enable local CPU interrupts */
- local_irq_enable();
- mdelay(10);
- preempt_enable();
-
- /* Call platform functions marked "on wake" */
- pmac_pfunc_base_resume();
- pmac_pfunc_i2c_resume();
-
- /* Resume devices */
- device_resume();
-
- /* Notify old style drivers */
- broadcast_wake();
-
- pm_restore_console();
-
- return 0;
-}
-
#define GRACKLE_PM (1<<7)
#define GRACKLE_DOZE (1<<5)
#define GRACKLE_NAP (1<<4)
@@ -2127,19 +2002,12 @@ static int powerbook_sleep_grackle(void)
unsigned long save_l2cr;
unsigned short pmcr1;
struct adb_request req;
- int ret;
struct pci_dev *grackle;
grackle = pci_find_slot(0, 0);
if (!grackle)
return -ENODEV;
- ret = pmac_suspend_devices();
- if (ret) {
- printk(KERN_ERR "Sleep rejected by devices\n");
- return ret;
- }
-
/* Turn off various things. Darwin does some retry tests here... */
pmu_request(&req, NULL, 2, PMU_POWER_CTRL0, PMU_POW0_OFF|PMU_POW0_HARD_DRIVE);
pmu_wait_complete(&req);
@@ -2200,8 +2068,6 @@ static int powerbook_sleep_grackle(void)
PMU_POW_ON|PMU_POW_BACKLIGHT|PMU_POW_CHARGER|PMU_POW_IRLED|PMU_POW_MEDIABAY);
pmu_wait_complete(&req);
- pmac_wakeup_devices();
-
return 0;
}
@@ -2211,7 +2077,6 @@ powerbook_sleep_Core99(void)
unsigned long save_l2cr;
unsigned long save_l3cr;
struct adb_request req;
- int ret;
if (pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) < 0) {
printk(KERN_ERR "Sleep mode not supported on this machine\n");
@@ -2221,12 +2086,6 @@ powerbook_sleep_Core99(void)
if (num_online_cpus() > 1 || cpu_is_offline(0))
return -EAGAIN;
- ret = pmac_suspend_devices();
- if (ret) {
- printk(KERN_ERR "Sleep rejected by devices\n");
- return ret;
- }
-
/* Stop environment and ADB interrupts */
pmu_request(&req, NULL, 2, PMU_SET_INTR_MASK, 0);
pmu_wait_complete(&req);
@@ -2297,8 +2156,6 @@ powerbook_sleep_Core99(void)
/* Restore LPJ, cpufreq will adjust the cpu frequency */
loops_per_jiffy /= 2;
- pmac_wakeup_devices();
-
return 0;
}
@@ -2308,7 +2165,7 @@ powerbook_sleep_Core99(void)
static int
powerbook_sleep_3400(void)
{
- int ret, i, x;
+ int i, x;
unsigned int hid0;
unsigned long p;
struct adb_request sleep_req;
@@ -2326,13 +2183,6 @@ powerbook_sleep_3400(void)
/* Allocate room for PCI save */
pbook_alloc_pci_save();
- ret = pmac_suspend_devices();
- if (ret) {
- pbook_free_pci_save();
- printk(KERN_ERR "Sleep rejected by devices\n");
- return ret;
- }
-
/* Save the state of PCI config space for some slots */
pbook_pci_save();
@@ -2376,7 +2226,6 @@ powerbook_sleep_3400(void)
while (asleep)
mb();
- pmac_wakeup_devices();
pbook_free_pci_save();
iounmap(mem_ctrl);
@@ -2558,6 +2407,142 @@ pmu_release(struct inode *inode, struct
return 0;
}
+#if defined(CONFIG_PM) && defined(CONFIG_PPC32)
+static int powerbook_prepare_sleep(suspend_state_t state)
+{
+ /* Notify old-style device drivers */
+ broadcast_sleep(PBOOK_SLEEP_REQUEST);
+ broadcast_sleep(PBOOK_SLEEP_NOW);
+
+ return 0;
+}
+
+/*
+ * overrides the weak arch_suspend_disable_irqs in kernel/power/main.c
+ */
+void arch_suspend_disable_irqs(void)
+{
+#ifdef CONFIG_PMAC_BACKLIGHT
+ /* Tell backlight code not to muck around with the chip anymore */
+ pmu_backlight_set_sleep(1);
+#endif
+
+ /* Call platform functions marked "on sleep" */
+ pmac_pfunc_i2c_suspend();
+ pmac_pfunc_base_suspend();
+
+ /* Stop preemption */
+ preempt_disable();
+
+ /* Make sure the decrementer won't interrupt us */
+ asm volatile("mtdec %0" : : "r" (0x7fffffff));
+ /* Make sure any pending DEC interrupt occurring while we did
+ * the above didn't re-enable the DEC */
+ mb();
+ asm volatile("mtdec %0" : : "r" (0x7fffffff));
+
+ local_irq_disable();
+}
+
+static int powerbook_sleep(suspend_state_t state)
+{
+ int error = 0;
+
+ /* Wait for completion of async requests */
+ while (!batt_req.complete)
+ pmu_poll();
+
+ /* Giveup the lazy FPU & vec so we don't have to back them
+ * up from the low level code
+ */
+ enable_kernel_fp();
+
+#ifdef CONFIG_ALTIVEC
+ if (cpu_has_feature(CPU_FTR_ALTIVEC))
+ enable_kernel_altivec();
+#endif /* CONFIG_ALTIVEC */
+
+ switch (pmu_kind) {
+ case PMU_OHARE_BASED:
+ error = powerbook_sleep_3400();
+ break;
+ case PMU_HEATHROW_BASED:
+ case PMU_PADDINGTON_BASED:
+ error = powerbook_sleep_grackle();
+ break;
+ case PMU_KEYLARGO_BASED:
+ error = powerbook_sleep_Core99();
+ break;
+ default:
+ return -ENOSYS;
+ }
+
+ if (error)
+ return error;
+
+ mdelay(100);
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+ /* Tell backlight code it can use the chip again */
+ pmu_backlight_set_sleep(0);
+#endif
+
+ return 0;
+}
+
+/*
+ * overrides the weak arch_suspend_enable_irqs in kernel/power/main.c
+ */
+void arch_suspend_enable_irqs(void)
+{
+ /* Force a poll of ADB interrupts */
+ adb_int_pending = 1;
+ via_pmu_interrupt(0, NULL);
+
+ /* Restart jiffies & scheduling */
+ wakeup_decrementer();
+
+ /* Re-enable local CPU interrupts */
+ local_irq_enable();
+ mdelay(10);
+ preempt_enable();
+
+ /* Call platform functions marked "on wake" */
+ pmac_pfunc_base_resume();
+ pmac_pfunc_i2c_resume();
+}
+
+static int powerbook_finish_sleep(suspend_state_t state)
+{
+ /* Notify old style drivers */
+ broadcast_wake();
+
+ return 0;
+}
+
+static int pmu_sleep_valid(suspend_state_t state)
+{
+ return state == PM_SUSPEND_MEM
+ && (pmac_call_feature(PMAC_FTR_SLEEP_STATE, NULL, 0, -1) >= 0);
+}
+
+static struct pm_ops pmu_pm_ops = {
+ .prepare = powerbook_prepare_sleep,
+ .enter = powerbook_sleep,
+ .finish = powerbook_finish_sleep,
+ .valid = pmu_sleep_valid,
+};
+
+static int register_pmu_pm_ops(void)
+{
+ pm_set_ops(&pmu_pm_ops);
+
+ return 0;
+}
+
+device_initcall(register_pmu_pm_ops);
+#endif
+
static int
pmu_ioctl(struct inode * inode, struct file *filp,
u_int cmd, u_long arg)
@@ -2567,29 +2552,19 @@ pmu_ioctl(struct inode * inode, struct f
switch (cmd) {
#if defined(CONFIG_PM) && defined(CONFIG_PPC32)
+ /* just provided for compatibility */
case PMU_IOC_SLEEP:
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- if (sleep_in_progress)
- return -EBUSY;
- sleep_in_progress = 1;
- switch (pmu_kind) {
- case PMU_OHARE_BASED:
- error = powerbook_sleep_3400();
- break;
- case PMU_HEATHROW_BASED:
- case PMU_PADDINGTON_BASED:
- error = powerbook_sleep_grackle();
- break;
- case PMU_KEYLARGO_BASED:
- error = powerbook_sleep_Core99();
- break;
- default:
- error = -ENOSYS;
- }
- sleep_in_progress = 0;
+ printk(KERN_INFO "via-pmu: the PMU_IOC_SLEEP ioctl is deprecated.\n");
+ printk(KERN_INFO "via-pmu: use \"echo mem > /sys/power/state\" instead!\n");
+ printk(KERN_INFO "via-pmu: this ioctl will be removed soon.\n");
+ error = pm_suspend(PM_SUSPEND_MEM);
break;
case PMU_IOC_CAN_SLEEP:
+ printk(KERN_INFO "via-pmu: the PMU_IOC_CAN_SLEEP ioctl is deprecated.\n");
+ printk(KERN_INFO "via-pmu: use \"grep mem /sys/power/state\" instead!\n");
+ printk(KERN_INFO "via-pmu: this ioctl will be removed soon.\n");
if (pmac_call_feature(PMAC_FTR_SLEEP_STATE,NULL,0,-1) < 0)
return put_user(0, argp);
else
@@ -2602,9 +2577,6 @@ pmu_ioctl(struct inode * inode, struct f
{
int brightness;
- if (sleep_in_progress)
- return -EBUSY;
-
brightness = pmac_backlight_get_legacy_brightness();
if (brightness < 0)
return brightness;
@@ -2616,9 +2588,6 @@ pmu_ioctl(struct inode * inode, struct f
{
int brightness;
- if (sleep_in_progress)
- return -EBUSY;
-
error = get_user(brightness, argp);
if (error)
return error;
--- linux-2.6.orig/Documentation/feature-removal-schedule.txt 2007-04-27 23:56:19.196021121 +0200
+++ linux-2.6/Documentation/feature-removal-schedule.txt 2007-04-28 00:52:59.482010117 +0200
@@ -302,3 +302,13 @@ Why: Code was merged, then submitter imm
Who: David S. Miller <davem@davemloft.net>
---------------------------
+
+What: /dev/pmu suspend/can-suspend ioctls
+When: 2.6.24
+Files: drivers/macintosh/via-pmu.c
+Why: powermac supports proper generic pm_ops now and can suspend with
+ "echo mem > /sys/power/state" instead of the ioctl, checking if
+ it can suspend can be done by reading /sys/power/state.
+Who: Johannes Berg <johannes@sipsolutions.net>
+
+---------------------------
^ permalink raw reply
* [PATCH] cell: cbe_cpufreq cleanup and crash fix
From: Arnd Bergmann @ 2007-04-28 2:49 UTC (permalink / raw)
To: linuxppc-dev; +Cc: Olof Johansson, Christian Krafft, Paul Mackerras
In-Reply-To: <17969.56735.644629.328360@cargo.ozlabs.ibm.com>
From: Olof Johansson <olof@lixom.net>
cbe_cpufreq cleanups:
* comment format
* whitespace
* don't init on non-cell platforms
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
---
Index: linux-2.6/arch/powerpc/platforms/cell/cbe_cpufreq.c
===================================================================
--- linux-2.6.orig/arch/powerpc/platforms/cell/cbe_cpufreq.c
+++ linux-2.6/arch/powerpc/platforms/cell/cbe_cpufreq.c
@@ -25,6 +25,7 @@
#include <asm/hw_irq.h>
#include <asm/io.h>
+#include <asm/machdep.h>
#include <asm/processor.h>
#include <asm/prom.h>
#include <asm/time.h>
@@ -155,7 +156,7 @@ static int set_pmode_reg(int cpu, unsign
}
static int set_pmode(int cpu, unsigned int slow_mode) {
- if(pmi_dev)
+ if (pmi_dev)
return set_pmode_pmi(cpu, slow_mode);
else
return set_pmode_reg(cpu, slow_mode);
@@ -167,7 +168,7 @@ static void cbe_cpufreq_handle_pmi(struc
u8 cpu;
u8 cbe_pmode_new;
- BUG_ON (pmi_msg.type != PMI_TYPE_FREQ_CHANGE);
+ BUG_ON(pmi_msg.type != PMI_TYPE_FREQ_CHANGE);
cpu = cbe_node_to_cpu(pmi_msg.data1);
cbe_pmode_new = pmi_msg.data2;
@@ -191,7 +192,7 @@ static struct pmi_handler cbe_pmi_handle
* cpufreq functions
*/
-static int cbe_cpufreq_cpu_init (struct cpufreq_policy *policy)
+static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
const u32 *max_freqp;
u32 max_freq;
@@ -200,7 +201,7 @@ static int cbe_cpufreq_cpu_init (struct
cpu = of_get_cpu_node(policy->cpu, NULL);
- if(!cpu)
+ if (!cpu)
return -ENODEV;
pr_debug("init cpufreq on CPU %d\n", policy->cpu);
@@ -210,13 +211,13 @@ static int cbe_cpufreq_cpu_init (struct
if (!max_freqp)
return -EINVAL;
- // we need the freq in kHz
+ /* we need the freq in kHz */
max_freq = *max_freqp / 1000;
pr_debug("max clock-frequency is at %u kHz\n", max_freq);
pr_debug("initializing frequency table\n");
- // initialize frequency table
+ /* initialize frequency table */
for (i=0; cbe_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) {
cbe_freqs[i].frequency = max_freq / cbe_freqs[i].index;
pr_debug("%d: %d\n", i, cbe_freqs[i].frequency);
@@ -235,10 +236,10 @@ static int cbe_cpufreq_cpu_init (struct
policy->cpus = cpu_sibling_map[policy->cpu];
#endif
- cpufreq_frequency_table_get_attr (cbe_freqs, policy->cpu);
+ cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu);
/* this ensures that policy->cpuinfo_min and policy->cpuinfo_max are set correctly */
- return cpufreq_frequency_table_cpuinfo (policy, cbe_freqs);
+ return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs);
}
static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy)
@@ -270,7 +271,7 @@ static int cbe_cpufreq_target(struct cpu
freqs.new = cbe_freqs[cbe_pmode_new].frequency;
freqs.cpu = policy->cpu;
- mutex_lock (&cbe_switch_mutex);
+ mutex_lock(&cbe_switch_mutex);
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n",
@@ -303,6 +304,9 @@ static int __init cbe_cpufreq_init(void)
{
struct device_node *np;
+ if (!machine_is(cell))
+ return -ENODEV;
+
np = of_find_node_by_type(NULL, "ibm,pmi");
pmi_dev = of_find_device_by_node(np);
@@ -315,7 +319,7 @@ static int __init cbe_cpufreq_init(void)
static void __exit cbe_cpufreq_exit(void)
{
- if(pmi_dev)
+ if (pmi_dev)
pmi_unregister_handler(pmi_dev, &cbe_pmi_handler);
cpufreq_unregister_driver(&cbe_cpufreq_driver);
^ permalink raw reply
* Re: [PATCH 9/13] powerpc: Add arch/powerpc mv64x60 I2C platform data setup
From: Dale Farnsworth @ 2007-04-28 2:40 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: linuxppc-dev, Paul Mackerras
In-Reply-To: <200704280305.26312.arnd@arndb.de>
On Sat, Apr 28, 2007 at 03:05:25AM +0200, Arnd Bergmann wrote:
> > This is a very OF-centric proposal. IMHO it's a mistake for drivers
> > to call of_get_property(). There should be a firmware-independent
> > way of passing parameters to drivers. I'm not a big fan of the
> > details of platform_device, but at least it's firmware independent.
> > I think it's a layering violation even when ppc-only drivers
> > query for parameters via of_get_property().
>
> Calling of_* functions is the natural thing to do for an
> of_platform_driver, just like a PCI driver calls pci_* functions.
It may be customary, and seem natural to you, but to me it includes
an unnaturally close coupling between the driver and the firmware.
Of course, I see many drivers have adopted it. I also like the
interface better than platform_device. However, I would like
it better if it were more decoupled from Open Firmware.
> Note that what I'm suggestiong here is that you have one file
> that encapsulates all the calls to OF functions (of_iomap,
> irq_of_parse_and_map, ...) and passes the raw information down
> to the main low-level driver.
I thought that's what I submitted. The main difference is that
what you suggest requires me to also allocate a superfluous
of_device for each platform device, or to rewrite the driver
interface to handle an of_device and to do its own calls to
retrieve data from the device tree.
In the short term, since the of_ routines don't support the
platform_device interface, there's going to be ugliness. We're
just discussing where to put that ugliness. Do we keep the of_
functions clean and push the ugliness into the drivers, or
do we keep the driver interfaces clean and create platform_devices
rather than of_devices from the device tree info? You want to
keep the of_ functions clean; I don't want to uglify the drivers
and am concerned about getting those ugly bits accepted into
the kernel.
> I think the main difference between your view and mine is that
> you see the OF model as an _architecture_ property, while in my
> view it is a _bus_type_ that devices are attached to.
Heh. I see it as a firmware-specific bus type. Of course, now
it's actually device-tree-specific, since we don't require OF
anymore, just some of its interfaces.
> It's like the OHCI driver, which has low-level driver for the
> a common register interface, but comes with a number of bus
> interfaces that it can attach to (PCI, PS3, OF, ...).
> [ don't look at the OHCI implementation, the way they did
> the code is not a good example, but it can be done properly. ]
>
> > Since you now recognize our need for platform_devices, I'd like to
> > understand your primary objection to our not creating of_devices.
> > Is it because it violates the assumption that of_devices be created
> > for all devices on the platform?
>
> That, and the missing ability to do module autoloading.
>
> > Is that a hard requirement?
>
> Not yet, but I'd like to get there, as I mention above.
Understood. I still think it's an OF-centric view. That wouldn't
be a problem if all architectures replaced platform_device with
of_device, a place that I think you'd also like to get to, which
I wouldn't mind at all. We're just not going to get there any
time soon.
-Dale
^ permalink raw reply
* RE: How do external irq's get mapped?
From: Zhang Wei-r63237 @ 2007-04-28 2:30 UTC (permalink / raw)
To: Charles Krinke, Fleming Andy-afleming
Cc: Randy Brown, Chris Carlson, Kevin Smith, linuxppc-embedded
In-Reply-To: <9F3F0A752CAEBE4FA7E906CC2FBFF57C06A1F4@MERCURY.inside.istor.com>
Hi, Charles,
Maybe you can try my patches about showing irq-mapping relationship.
http://patchwork.ozlabs.org/linuxppc/patch?id=3D9999
http://patchwork.ozlabs.org/linuxppc/patch?id=3D9997
http://patchwork.ozlabs.org/linuxppc/patch?id=3D9998
http://patchwork.ozlabs.org/linuxppc/patch?id=3D9996
Hope it could help you.
Best Regards,
Zhang Wei
> Subject: RE: How do external irq's get mapped?
>=20
> > 3. The offset between TSEC1_tx of 13-->93 is a constant of=20
> 80 decimal.
> > Is this a clue to what the irq should be set to for external IRQ0 in
> > this design?
>=20
>=20
> Yeah. 112. However, you really should switch to using=20
> arch/powerpc, =20
> and device trees. In that instance, you set the irq to the pin =20
> number (1-4), and the kernel will map that based on the=20
> interrupt-map =20
> property of the pci node. It was for precisely this type of problem =20
> that the irq numbers were virtualized. The IRQ numbers in arch/ppc =20
> actually change depending on whether you've *configured* the=20
> CPM or not.
>=20
> Andy
>=20
> Dear Andy:
>=20
> I appreciate your kind advice, it does help converge understanding
> somewhat. I can see how we get the 80 decimal offset with 64 + 32.
>=20
> I have commented out the call i8259_init(0,0) in
> arch/ppc/platforms/85xx/mpc85xx_cds_common.c, but retained the call to
> cpm2_init_IRQ(); shortly after that. We are constrained to finish the
> current project with the kernel we started with, so changing=20
> from ppc to
> powerpc is really difficult right now.
>=20
> When the pci_dev->irq member is set to 112, there is a difference in
> behavior. Now open_pic.c:720 is complaining that 112 is "invalid irq
> 112", so some additional understanding is needed on my part.
>=20
> If you get a chance to help me continue to understand how the 8541
> interrupts are sutured into Linux, it would be greatly appreciated.
>=20
> Charles Krinke
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>=20
^ permalink raw reply
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