Eric Lee / smarc-fsl-linux-kernel

14 Jul, 2008

2 commits

  • 862c2c0a6   ALSA: ALSA driver for SGI O2 audio board ... Browse Code »

    This patch adds a new ALSA driver for the audio device found inside
    most of the SGI O2 workstation. The hardware uses a SGI custom chip,
    which feeds a AD codec chip.

    Signed-off-by: Thomas Bogendoerfer
    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Thomas Bogendoerfer
     
  • 787dba37a   ALSA: ALSA driver for SGI HAL2 audio device ... Browse Code »

    This patch adds a new ALSA driver for the audio device found inside
    many older SGI workstation (Indy, Indigo2). The hardware uses a SGI
    custom chip, which feeds two codec chips, an IEC chip and a synth chip.
    Currently only one of the codecs is supported. This driver already has
    the same functionality as the HAL2 OSS driver and will replace it.

    Signed-off-by: Thomas Bogendoerfer
    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Thomas Bogendoerfer
     

27 May, 2008

1 commit

01 Feb, 2008

1 commit

  • 9004acc70   [ALSA] Remove sound/driver.h ... Browse Code »

    This header file exists only for some hacks to adapt alsa-driver
    tree. It's useless for building in the kernel. Let's move a few
    lines in it to sound/core.h and remove it.
    With this patch, sound/driver.h isn't removed but has just a single
    compile warning to include it. This should be really killed in
    future.

    Signed-off-by: Takashi Iwai
    Signed-off-by: Jaroslav Kysela

    Takashi Iwai
     

20 Oct, 2007

1 commit

05 Oct, 2006

1 commit

  • 7d12e780e   IRQ: Maintain regs pointer globally rather than passing to IRQ handlers ... Browse Code »

    Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
    of passing regs around manually through all ~1800 interrupt handlers in the
    Linux kernel.

    The regs pointer is used in few places, but it potentially costs both stack
    space and code to pass it around. On the FRV arch, removing the regs parameter
    from all the genirq function results in a 20% speed up of the IRQ exit path
    (ie: from leaving timer_interrupt() to leaving do_IRQ()).

    Where appropriate, an arch may override the generic storage facility and do
    something different with the variable. On FRV, for instance, the address is
    maintained in GR28 at all times inside the kernel as part of general exception
    handling.

    Having looked over the code, it appears that the parameter may be handed down
    through up to twenty or so layers of functions. Consider a USB character
    device attached to a USB hub, attached to a USB controller that posts its
    interrupts through a cascaded auxiliary interrupt controller. A character
    device driver may want to pass regs to the sysrq handler through the input
    layer which adds another few layers of parameter passing.

    I've build this code with allyesconfig for x86_64 and i386. I've runtested the
    main part of the code on FRV and i386, though I can't test most of the drivers.
    I've also done partial conversion for powerpc and MIPS - these at least compile
    with minimal configurations.

    This will affect all archs. Mostly the changes should be relatively easy.
    Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

    struct pt_regs *old_regs = set_irq_regs(regs);

    And put the old one back at the end:

    set_irq_regs(old_regs);

    Don't pass regs through to generic_handle_irq() or __do_IRQ().

    In timer_interrupt(), this sort of change will be necessary:

    - update_process_times(user_mode(regs));
    - profile_tick(CPU_PROFILING, regs);
    + update_process_times(user_mode(get_irq_regs()));
    + profile_tick(CPU_PROFILING);

    I'd like to move update_process_times()'s use of get_irq_regs() into itself,
    except that i386, alone of the archs, uses something other than user_mode().

    Some notes on the interrupt handling in the drivers:

    (*) input_dev() is now gone entirely. The regs pointer is no longer stored in
    the input_dev struct.

    (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
    something different depending on whether it's been supplied with a regs
    pointer or not.

    (*) Various IRQ handler function pointers have been moved to type
    irq_handler_t.

    Signed-Off-By: David Howells
    (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)

    David Howells
     

30 Sep, 2006

1 commit

03 Jul, 2006

1 commit

22 Mar, 2006

3 commits

  • c5c079e31   [ALSA] AMD Au1x00: AC'97 controller is memory mapped ... Browse Code »

    Modules: MIPS AU1x00 driver

    AMD Au1x00 ALSA driver erroneously calls request_region() for AC'97
    controller registers -- the controller is actually memory mapped at
    addresses 0x10000000 thru 0x100FFFFF.

    Signed-off-by: Sergei Shtylyov
    Signed-off-by: Takashi Iwai

    Sergei Shtylyov
     
  • bb160b850   [ALSA] AMD Au1x00: fix DMA init/cleanup ... Browse Code »

    Modules: MIPS AU1x00 driver

    AMD Au1x00 ALSA driver causes kernel oops in au1000_init() by trying
    to set DMA channel to -1 in yet unallocated audio streams. Here's the
    patch that staightens up DMA init/cleanup code.

    Signed-off-by: Sergei Shtylyov
    Signed-off-by: Takashi Iwai

    Sergei Shtylyov
     
  • d8327c784   [ALSA] AMD Au1x00: make driver build after cleanup ... Browse Code »

    Modules: MIPS AU1x00 driver

    AMD Au1x00 ALSA driver doesn't build after the recent code cleanup:

    sound/mips/au1x00.c: In function 'au1000_setup_dma_link':
    sound/mips/au1x00.c:173: error: 'pointer' undeclared (first use in this function)
    sound/mips/au1x00.c:173: error: (Each undeclared identifier is reported only once
    sound/mips/au1x00.c:173: error: for each function it appears in.)
    sound/mips/au1x00.c: In function 'snd_au1000_hw_params':
    sound/mips/au1x00.c:339: warning: implicit declaration of function 'snd_mask_min'

    Signed-off-by: Takashi Iwai

    Sergei Shtylylov
     

03 Jan, 2006

3 commits

04 Nov, 2005

3 commits

12 Sep, 2005

1 commit

  • 16dab54b8   [ALSA] Add snd_card_set_generic_dev() call ... Browse Code »

    ARM,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,MIPS
    MIPS AU1x00 driver,PPC,PPC PowerMac driver,SPARC,SPARC AMD7930 driver
    SPARC cs4231 driver,SPARC DBRI driver
    - Added snd_card_set_generic_dev() call.
    - Added SND_GENERIC_DRIVER to Kconfig.
    - Clean up the error path in probe if necessary.

    Signed-off-by: Takashi Iwai

    Takashi Iwai
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds