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path: root/drivers/mmc/core
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2008-04-18mmc: sdio_ops.c should #include "sdio_ops.h"Adrian Bunk
Every file should include the headers containing the externs for its global functions. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-04-18mmc: proper prototypes for mmc_attach_*()Adrian Bunk
This patch adds proper prototypes for mmc_attach_*() in drivers/mmc/core/core.h Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-04-18mmc: make __mmc_release_bus() staticAdrian Bunk
This patch makes the needlessly global __mmc_release_bus() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-04-18mmc: use shorter, equivalent set_current_state()Robert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-04-18mmc: set controller name earlyPierre Ossman
Reorganise code so that mmc_hostname() works directly after allocation. That way host drivers can use that name for resource allocations and messages during probing. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-03-22mmc: use sysfs groups to handle conditional attributesPierre Ossman
Suppressing uevents turned out to be a bad idea as it screws up the order of events, making user space very confused. Change the system to use sysfs groups instead. This is a regression that, for some odd reason, has gone unnoticed for some time. It confuses hal so that the block devices (which have the mmc device as a parent) are not registered. End result being that desktop magic when cards are inserted won't work. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-02cleanup asm/scatterlist.h includesAdrian Bunk
Not architecture specific code should not #include <asm/scatterlist.h>. This patch therefore either replaces them with #include <linux/scatterlist.h> or simply removes them if they were unused. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-27mmc: use common byte swap macrosPierre Ossman
Use the more generic byte swapping macros instead of the socket variants. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-27mmc: fix cid and csd byte orderPierre Ossman
MMC over SPI sends the CID and CSD registers as data, not responses, which means that the host driver won't do the necessary byte flipping for us. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-17mmc: possible leak in mmc_read_ext_csdFlorin Malita
The exception path associated with an invalid ext_csd_struct returns without freeing ext_csd. Coverity CID 1909. Signed-off-by: Florin Malita Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-14uevent environment changes falloutAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-12Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (75 commits) PM: merge device power-management source files sysfs: add copyrights kobject: update the copyrights kset: add some kerneldoc to help describe what these strange things are Driver core: rename ktype_edd and ktype_efivar Driver core: rename ktype_driver Driver core: rename ktype_device Driver core: rename ktype_class driver core: remove subsystem_init() sysfs: move sysfs file poll implementation to sysfs_open_dirent sysfs: implement sysfs_open_dirent sysfs: move sysfs_dirent->s_children into sysfs_dirent->s_dir sysfs: make sysfs_root a regular directory dirent sysfs: open code sysfs_attach_dentry() sysfs: make s_elem an anonymous union sysfs: make bin attr open get active reference of parent too sysfs: kill unnecessary NULL pointer check in sysfs_release() sysfs: kill unnecessary sysfs_get() in open paths sysfs: reposition sysfs_dirent->s_mode. sysfs: kill sysfs_update_file() ...
2007-10-12Driver core: change add_uevent_var to use a structKay Sievers
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12mmc: use correct unregister function for led triggerPierre Ossman
We register a simple trigger so make sure we use the corresponding unregister function. (Also means we get a dummy function when triggers aren't compiled in) Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-06sdio: make the IRQ thread more resilient in the presence of bad statesNicolas Pitre
Currently we print a message about some bad states wrt function IRQ handlers but return 0 from process_sdio_pending_irqs() nevertheless. This can lead to an infinite loop as nothing might have cleared the condition for the pending card interrupt from the host controller by the time host->ops->enable_sdio_irq(host, 1) is called. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-06sdio: fix IRQ diagnostic messageNicolas Pitre
If func is actually null we won't get much from sdio_func_id(func). Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-27sdio: adaptive interrupt pollingPierre Ossman
The interrupt polling frequency is a compromise between power usage and interrupt latency. Unfortunately, it affects throughput rather severely for devices which require an interrupt for every chunk of data. By making the polling frequency adaptive, we get better throughput with those devices without sacficing too much power. Polling will quickly increase when there is an actual interrupt, and slowly fall back to the idle frequency when the interrupts stop coming. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-24mmc: add led triggerPierre Ossman
Add a led trigger for each host controller that indicates if there is a request active on the controller. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23MMC core learns about SPIDavid Brownell
Teach the MMC/SD/SDIO core about using SPI mode. - Use mmc_host_is_spi() so enumeration works through SPI signaling and protocols, not just the native versions. - Provide the SPI response type flags with each request issued, including requests from the new lock/unlock code. - Understand that cmd->resp[0] and mmc_get_status() results for SPI return different values than for "native" MMC/SD protocol; this affects resetting, checking card lock status, and some others. - Understand that some commands act a bit differently ... notably: * OP_COND command doesn't return the OCR * APP_CMD status doesn't have an R1_APP_CMD analogue Those changes required some new and updated primitives: - Provide utilities to access two SPI-only requests, and one request that wasn't previously needed: * mmc_spi_read_ocr() ... SPI only * mmc_spi_set_crc() ... SPI only (override by module parm) * mmc_send_cid() ... for use without broadcast mode - Updated internal routines: * Previous mmc_send_csd() modified into mmc_send_cxd_native(); it uses native "R2" responses, which include 16 bytes of data. * Previous mmc_send_ext_csd() becomes new mmc_send_cxd_data() helper for command-and-data access * Bugfix to that mmc_send_cxd_data() code: dma-to-stack is unsafe/nonportable, so kmalloc a bounce buffer instead. - Modified mmc_send_ext_csd() now uses mmc_send_cxd_data() helper - Modified mmc_send_csd(), and new mmc_spi_send_cid(), routines use those helper routines based on whether they're native or SPI The newest categories of cards supported by the MMC stack aren't expected to work yet with SPI: MMC or SD cards with over 4GB data, and SDIO. All those cards support SPI mode, so eventually they should work too. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: store vendor stringsPierre Ossman
Store vendor strings found in CISTPL_VERS_1 so that function drivers can access them. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: increase power up delayPierre Ossman
Increase delay for power up in order to support some slower boards. Also add some comments about why the delays are there. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: add sdio_f0_readb() and sdio_f0_writeb()David Vrabel
Add sdio_f0_readb() and sdio_f0_writeb() functions to reading and writing function 0 registers. Writes outside the vendor specific CCCR registers (0xF0 - 0xFF) are not permitted. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: replace BUG_ON with WARN_ONPierre Ossman
Replace all cases of BUG_ON with WARN_ON where there is a chance (with varying degrees of slim) that the kernel can continue without incidence. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: kmalloc + memset conversion to kzallocMariusz Kozlowski
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: extend sdio_readsb() and friends to handle any length of bufferDavid Vrabel
Extend sdio_readsb(), sdio_writesb(), sdio_memcpy_fromio(), and sdio_memcpy_toio() to handle any length of buffer by splitting the transfer into several IO_RW_EXTENDED commands. Typically, a transfer would be split into a single block mode transfer followed by a byte mode transfer for the remainder but we also handle lack of block mode support and the block size being greater than 512 (the maximum byte mode transfer size). host->max_seg_size <= host->max_req_size so there's no need to check both when determining the maximum data size for a single command. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: set the functions' block sizeDavid Vrabel
Before a driver is probed, set the function's block size to the default so the driver is sure the block size is something sensible and it needn't explicitly set it. The default block size is the largest that's supported by both the card and the host, with a maximum of 512 to ensure aribitrarily sized transfer use the optimal (least) number of commands. See http://lkml.org/lkml/2007/8/7/150 for reasons for the block size choice. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: add SDIO_FBR_BASE(f) macroDavid Vrabel
Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: fix sdio timeout calculationPierre Ossman
SDIO doesn't have a CSD so it uses different timeout values than SD memory. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: fix incorrect divisor in debug outputPierre Ossman
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: enable wide bus modePierre Ossman
Enable 4-bit data bus mode, according to host and card capabilities. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: change clock speedPierre Ossman
Change clock speed to the highest supported by the card. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23make struct sdio_dev_attrs[] staticAdrian Bunk
On Wed, Jul 25, 2007 at 04:03:04AM -0700, Andrew Morton wrote: >... > Changes since 2.6.22-rc6-mm1: >... > git-mmc.patch >... > git trees >... sdio_dev_attrs[] can become static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: add interface for host side SDIO interrupt reportingNicolas Pitre
Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: support IO_RW_EXTENDEDPierre Ossman
Support the multi-byte transfer operation, including handlers for common operations like writel()/readl(). Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: core support for SDIO function interruptNicolas Pitre
Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: allow for mmc_claim_host to be abortedNicolas Pitre
It is sometimes necessary to give up on trying to claim the host lock, especially if that happens in a thread that has to be stopped. While at it, fix the description for mmc_claim_host() which was wrong. Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: add basic sysfs attributesPierre Ossman
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: add modalias supportPierre Ossman
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: whip bus uevent handler into shapePierre Ossman
Make the mmc bus uevent callback look like all other subsystems. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: add device id table and matchingPierre Ossman
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: initialize mmc subsystem with subsys_initcall()Nicolas Pitre
The problem is that the sdio_bus must be registered before any SDIO drivers are registered against it otherwise the kernel sulks. Because the sdio_bus registration happens through module_init (equivalent to device_initcall), then any SDIO drivers linked before the SDIO core code in the kernel will be initialized first. Upcoming SDIO function drivers are likely to be located outside the drivers/mmc directory as it is common practice to group drivers according to their function rather than the bus they use. SDIO drivers are therefore likely to appear at random location in the kernel link. To make sure the sdio_bus is always initialized before any SDIO drivers, let's move the MMC init to the subsys_initcall level. Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: split up common and function CIS parsingPierre Ossman
Add a more clean separation between global, common CIS information and the function specific one as we need the common information in places where no specific function is specified. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: link unknown CIS tuples to the sdio_func structureNicolas Pitre
This way those tuples that the core cares about are consumed by the core code, and tuples that only function drivers might make sense of are available to drivers. Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: initial CIS parsing codeNicolas Pitre
Signed-off-by: Nicolas Pitre <npitre@mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: basic parsing of FBRPierre Ossman
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23sdio: read and decode interesting parts of the CCCRPierre Ossman
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: enable/disable functions for SDIOPierre Ossman
Like many other buses, the devices (functions) on the SDIO bus must be enabled before they can be used. Add functions that allow drivers to do so. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: add basic SDIO I/O operationsPierre Ossman
Add command wrappers that simplify register access from SDIO function drivers. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: add SDIO driver handlingPierre Ossman
Add basic driver handling to the SDIO device model. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23mmc: basic SDIO device modelPierre Ossman
Add the sdio bus type and basic device handling. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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