The demux is an in-kernel software component whose purpose is to take
an incoming TSIF stream and split it into multiple output channels
based on the PID field in each TS packet. Each output channel can be
used for a different purpose, such as audio, video or channel
information. In order to get good performance when moving such large
data streams around, the demux was placed in kernel-space as to
prevent copying memory buffers between kernel-space and user-space, at
least at this early stage in processing the traffic. Originally the
design of the TSPP driver was based on the earlier TSIF driver, so it
contained only a user-space API.
Signed-off-by: Joel Nider <jnider@codeaurora.org>
(cherry picked from commit 435ad8e2157eec5783a435f1e7ec47f67d759882)
Change-Id: I0dadf04ec2694c82fc8378fbed5fbf81fc889337
Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
During tsif stress tests it was reported that the dma flush caused by
calling action_close() is sometimes unrecoverable. The root cause is
stopping the tsif while a read by the dma of the tsif FIFO is in
progress. The previous workaround relied on closing the tsif GPIOs
to stop incoming data to the tsif, then add a delay to allow the
dma to complete all outstanding transactions. A customer still reported
seeing the dma issue. The reason the issue was still happening is due to
the call of gpio API (request/free) which was done on pins not configured
to act as GPIOs. Doing so caused tsif interface not to be closed properly.
Per gpio-mux documentation, pins with function configured as non-gpio
may suffer from un-expected behavior when calling gpio API, these calls
were removed. The delay after closing tsif interface was enlarged to better
cope with low bitrate streams.
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
(cherry picked from commit b18fac5fe2c45d24bcac2bcd3db9bceb98317909)
Change-Id: I5115d9cd51bac5a7cd5200731c5dd4eb0d4fc352
Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
Currently, bus scaling topology for qseecom is incorrect.
-Added the correct topology paths for accessing Crypto
Engine which is controlled by QSEE.
-Removed setting the clock frequency of DFAB. This is
done by the bus driver.
-Removed references to the dfab clock instance defined
in clocks file.
Change-Id: Ib6953ea3bf5721d458bfe2aa06c54be329a8fdb9
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
(cherry picked from commit 1e8c7242fd3f32ade703484d2113f4a6f442a0e8)
Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
There are pretty long delay between cable plug-in and
image display on TV.
So this patch optimize the delay and remove unnecessary
register access.
Change-Id: I1fb334d9603c15bb3c0562cef852b1cc41d61e52
Vibration on should be always set. So even if there is pending workqueue,
it should be run. And using mutex is minimu for quick response.
Change-Id: I859fde428d2a0e8619e3f5a140bb5a33a0b05041
Clean up code and improve the vibrator-off sequence
Change-Id: Id04ea0735d1817db5ec05b8cfbc9216247758892
Signed-off-by: Iliyan Malchev <malchev@google.com>
Anx7808 port0 i2c address is conflicting with lm3530 i2c address.
So this patch change i2c address to another one.
Change-Id: Ie2bee9bb648f12a98129ec7f61fe4558ea3c0afc
When qseecom_unload_app() is invoked, wait_event_freezable() is called
in an atomic context (within a spinlock). wait_event_freezable() allows
sleep and should not be called in an atomic context where sleep is not
allowed.
Change-Id: I8c9c6d28f9e492fbbf2ac74a5ee3d1067c7733ad
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Replace the clk_enable() with clk_prepare_enable() and replace
clk_disable() with clk_disable_unprepare() functions.
Add a new tasklet so the clocks can be turned off and
unprepared from the irq context in the case of emergency.
Change-Id: Ic63c6c25600069938b414974c5e1237943ffe2e7
Signed-off-by: Joel Nider <jnider@codeaurora.org>
When multiple clients request qseecom to load an application, an app
id is assigned. If the request is to load an app that already exists
in qsee, the app id should return to the qseecom library.
Returning the app id was done in the qseecom_load_app() but not done
in the qseecom_query_app_loaded(). This change fixes the issue when
multiple clients request to load the same app in qsee.
Change-Id: Icaa5053906b61ace1d257ff1c96308cc89e3a9cc
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
Replace the clk_enable() with clk_prepare_enable() and replace
clk_disable() with clk_disable_unprepare() functions.
Change-Id: I63479090eccbeac46f091bf95faeb857139d23a4
Signed-off-by: Joel Nider <jnider@codeaurora.org>
Pull in Ion patches for 3.4 upgrade. Inclues the following
patches from google:
commit 7191e9ba25
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Mon Jan 30 14:18:08 2012 -0800
ion: Switch map/unmap dma api to sg_tables
Switch these api's from scatterlists to sg_tables
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
commit 6f9e56945d
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Tue Jan 31 09:40:30 2012 -0800
ion: Add reserve function to ion
Rather than requiring each platform call memblock_remove or reserve
from the board file, add this to ion
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
commit 9ae7e01de1
Author: KyongHo Cho <pullip.cho@samsung.com>
Date: Wed Sep 7 11:27:07 2011 +0900
gpu: ion: several bugfixes and enhancements of ION
1. Verifying if the size of memory allocation in ion_alloc() is aligned
by PAGE_SIZE at least. If it is not, this change makes the size to be
aligned by PAGE_SIZE.
2. Unmaps all mappings to the kernel and DMA address spaces when
destroying ion_buffer in ion_buffer_destroy(). This prevents leaks in
those virtual address spaces.
3. Makes the return value of ion_alloc() to be explicit Linux error code
when it fails to allocate a buffer.
4. Makes ion_alloc() implementation simpler. Removes 'goto' statement and
relavant call to ion_buffer_put().
5. Checks if the task is valid before calling put_task_struct() due
to failure on creating a ion client in ion_client_create().
6. Returns error when buffer allocation requested by userspace is failed.
Signed-off-by: KyongHo Cho <pullip.cho@samsung.com>
commit 043a61468f
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Wed Feb 1 11:09:46 2012 -0800
ion: Switch ion to use dma-buf
Ion now uses dma-buf file descriptors to share
buffers with userspace. Ion becomes a dma-buf
exporter and any driver that can import dma-bufs
can now import ion file descriptors.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
commit 0d1259b5f8
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Mon Apr 30 16:45:38 2012 -0700
gpu: ion: Use alloc_pages instead of vmalloc from the system heap
With this change the ion_system_heap will only use kernel address
space when the memory is mapped into the kernel (rare case).
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
commit be4a1ee79a
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Thu Apr 26 20:44:10 2012 -0700
gpu: ion: support begin/end and kmap/kunmap dma_buf ops
These ops were added in the 3.4 kernel. This patch adds support
for them to ion. Previous ion_map/unmap_kernel api is also
retained in addition to this new api.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
commit 46d71337f9
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Mon May 7 16:06:32 2012 -0700
gpu: ion: Allocate the sg_table at creation time rather than dynamically
Rather than calling map_dma on the allocations dynamically, this patch
switches to creating the sg_table at the time the buffer is created.
This is necessary because in future updates the sg_table will be used
for cache maintenance.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
commit 903f6c716d
Author: Rebecca Schultz Zavin <rebecca@android.com>
Date: Wed May 23 12:55:55 2012 -0700
gpu: ion: Get an sg_table from an ion handle
This patch adds an interface to return and sg_table given a
valid ion handle.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
The commit also includes fixups needed for MSM specific code.
Change-Id: Idbcfa9d6af0febf06f56daaa6beaa59cc08e4351
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Currently, qseecom user-space library does not have a way to
verify if a particular secure application is loaded in the
qsee or not. This new ioctl solves this issue.
Change-Id: Ia96459f3b8aadee2f6a3af564bb1cc83695759b5
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
Currently, if a client tries to load a secure app
in QSEE and another client tries to send a message to
another secure app, it results in a crash. Instead
of using 2 different mutex's - one for sending
messages and another for rest of the operations, now
only one mutex is used for all operations.
Change-Id: I8e1ad9ddf84cca602c6159a6f50b1abaff427b7c
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
During tsif stress tests it was reported that the dma flush caused by
calling action_close() is sometimes unrecoverable. The root cause is
stopping the tsif while a read by the dma of the tsif FIFO is in
progress. This workaround works by starving the tsif FIFO allowing
any in-flight transfers to complete, and thus ensuring a clean shutdown.
CRs-Fixed: 357934
CRs-Fixed: 358384
Change-Id: I766f53abe4a6a6a5905caa55c2e7fa0afba5cff4
Signed-off-by: Joel Nider <jnider@codeaurora.org>
The new method for requesting clocks requires a driver to pass its
device name for comparison to the list of available clocks.
Change-Id: Ica5b09447de177beead90f8b7c721b84820fbdf7
Signed-off-by: Joel Nider <jnider@codeaurora.org>
Remove tzcom driver components that includes files,
clock definitions. Currently tzcom driver has been replaced
by qseecom driver.
Change-Id: I1832d921a7b949057b84a7e0aa9afaa445be5194
Signed-off-by: Ramesh Masavarapu <rameshm@codeaurora.org>
Signed-off-by: Rebecca Schultz <rschultz@google.com>
pmem: Use the thread group leader insted of the current thread.
Instead of keeping track of the current thread, use the thread group leader
Signed-off-by: Rebecca Schultz <rschultz@google.com>
pmem: Add some apis to reference and flush pmem files by file struct
The api to refer to pmem files by fd should be depricated, it can
cause problems if a processes fd table changes while the kernel is processing
data in a pmem file. This change adds the safer api.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
pmem: Remove unused depricated fd api to pmem.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
pmem: Remove error message when calling get_pmem_addr
This call is used from the mdp driver to determine if the memory
is in pmem or in the fb. We will encounter this case during normal operation
so this error message should be removed.
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
pmem: Add include sched.h to fix compile errors
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
pmem: remove HW3D_* ioctls
Signed-off-by: Dima Zavin <dima@android.com>
pmem: Expose is_pmem_file to the in-kernel users.
Signed-off-by: Dima Zavin <dima@android.com>
pmem: Make the exposed functions be noops if CONFIG_ANDROID_PMEM is not set.
Signed-off-by: Dima Zavin <dima@android.com>
misc: pmem: don't flush if file was opened with O_SYNC
Change-Id: I067218658a0d7f7ecc1fe73e9ff6b0c3b3054653
Signed-off-by: Dima Zavin <dima@android.com>
Add a new platform driver to receive updates on status
of Unstable Memory Region.
Change-Id: Idbe1c51e229a6494fc2881acdcff7a81111734e6
Signed-off-by: Karthik Parsha <kparsha@codeaurora.org>
Currently default configuration will be active
during SMSC hub enumeration. For changing the default
configuration, requires I2C support for configuring
the configurable parameters of SMSC hub like VID,PID.
Change-Id: Ie0449b166ddaae990b9a69c3a75f8059250faf0e
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>
This driver is based of the TZCOM (planned to be deprecated soon).
It shares the same design as TZCOM with some re-organization and
new features added. QSEEcom (Qualcomm Secure Execution environment
Communicator) is named accordingly to be consistent with the
nomenclature used in the secure domain. The following additional
features (on top of current TZCOM) driver are implemented:
(1) Add support for multi-image loading.
The image that was loaded in TZCOM was hard-coded to "tzapps".
During a open() tzapps was loaded using pil driver call pil_get().
This severly limted the number of images that could be loaded to
one single application: named "tzapps". qseecom driver provides a
way to load any image on request. Client simply send the image
data in a specific format and this data is sent over to QSEE
(Qualcomm Secure Execution enviroment) to load accordingly.
(2) Add support for multi-client.
TZcom driver did not have provisions to support multiple clients
to interface with the single tzapp image loaded on the secure
domain. The changes added in qseecom driver allows for multiple
client to interface with a single image laoded and running in
secure domain.
(3) Add support for performance tweaking in QSEE
Added capability to send requests to QSEE to set specific clocks
for optimal crypto performance. This essentially will increase
the crypto performance on the secure domain. The crypto
functionality is used extensively by the current existing qseecom
client(s).
(4) Retain legacy support for QSEOS version 1.3.
In order for the existing applications to work with old QSEE image,
qseecom also supports the old mechanism (loading tzapp image via
pil). This was a requirement for existing products that are not
yet using the latest secure code.
Change-Id: I7cf2d62c612cb4d17b33579e66bee44c9844dfda
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
- The Trustzone Communicator driver provides interface for userspace
to communicate with TrustZone.
Change-Id: Id0dadacb9997d4a50e88f48ceb03540e1897df93
Signed-off-by: Sachin Shah <sachins@codeaurora.org>
The XOADC resides on PMIC 8058 and
the ADC supports reading the AMUX, XO THERM
and MPP channels. The driver is accessed through
the common interface ADC driver. The XOADC driver
exports api's to the kernel to perform the adc
reads.
Change-Id: I2b1b95711521b95263de246eba88c735bad4d9e2
Signed-off-by: Phong Pham <phong@codeaurora.org>
Move the following subdevices to use the pm8xxx interface -
mpp, irq, gpio, keypad, power-key, leds, othc, vibrator,
rtc, batt-alarm, thermal, upl, nfc, pwm, xoadc, regulators,
xo-buffers, charger.
This allows usage of a common driver for modules which are same
across multiple PM8XXX PMICs. It also provides flexibility
to add/remove subdevices for multiple board configurations.
Change-Id: Id9795552fc9f4a2c920c070babfaef1f4cd6ca61
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
This driver uses the timed output framework to
support the vibrator functionality.
Change-Id: Ibd21dffb458e8eecd283e80f127ab44f84d1d6c8
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Qualcomm PM8058 chip has 8 channels of PWM, also called LPG (Light
Pulse Generator). All PWM channels can be used as simple PWM machine
or as a more advanced PWM pattern generator using programmed lookup
table. This patch supports simple PWM machine as a sub device of
pmic8058 core.
To use PWM:
1. #include <linux/pwm.h>
2. #include <linux/pmic8058-pwm.h> only when you want to do the
configuration by yourself.
3. First call
* pwm_request() -- to reserve a PWM chanel
4. Call these APIs to configure & start/stop a PWM waveform
* pwm_config(period, duty) -- to configure a PWM wave
* pwm_enable() -- to start and enable the PWM output
* pwm_disable() -- to stop and disable the PWM output
You can repeat above 3 calls for different PWM waveforms.
5. Last call
* pwm_free() -- to free the PWM channel
Signed-off-by: Willie Ruan <wruan@quicinc.com>
Low level TSIF (Transport Stream InterFace) driver
provides in-kernel API to be used by upper layer
drivers;
included also is example for upper layer driver
that uses TSIF API and implements character device.
Signed-off-by: Vladimir Kondratiev <vkondrat@qualcomm.com>
Including:
commit 6bac783fae7e7c5a5bfc95e2cdc9b4f22ca53d44
Author: Hamad Kadmany <hkadmany@codeaurora.org>
Date: Thu Dec 20 18:30:40 2012 +0200
tspp: Disable read-complete interrupt
Read-complete interrupt can be generated from TSPP HW for test
purposes only. It is generated for each TS packet TSPP fetches from
TSIF interface. Having it enabled cause great load of interrupts
that are not used by the SW.
Change-Id: If2038f184a8b0904fba3e1cca5e110fd9daa52d3
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
commit 81cee0596e3cdf8102bf8c8ef45e5f3a07fc8a4d
Author: Hamad Kadmany <hkadmany@codeaurora.org>
Date: Thu Nov 29 14:15:57 2012 +0200
tspp: Improve data-path handling
Existing driver allocated BAM descriptor at fixed sizes each
with interrupt flag set. Notification on data was received when
the descriptor is fully consumed by the HW. The descriptor size
on one hand need to be big enough so that we don't receive too much
interrupts for high-bitrate streams, and on other hand needs
to be small enough so that for low-bitrate stream we are not starved
waiting for data for a long period of time.
The change adds support of allocating small descriptors and set
interrupt flags on part of descriptors. In addition, expiration
timer is used so that if interrupt is not received after long period
of time the timer handler reports back descriptors are already ready
to be consumed. This allows low-rate of interrupts and
handling of low-bitrate streams.
As descriptors are smaller now (size of single TS packet), exposed
API within SW demux that handles a single packet to save the function
call to the API that handles multiple packets for efficiency. Information
regarding the new buffer allocation was added to debugfs.
CRs-Fixed: 420818
Change-Id: I4bb05177774ab0e0bad0737ca1106a0c33f843ae
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
commit 44307d32e23a2bb2a190d88bb049cc34d1e20418
Author: Hamad Kadmany <hkadmany@codeaurora.org>
Date: Sun Nov 25 09:49:51 2012 +0200
misc: tspp: Enable notification of TSIF status and expose it in debugfs
Enable TSIF status interrupt to expose the following
information in debugfs:
- stat_rx_chunks: Counts number of TS packets chunks received from HW.
- stat_overflow: Counts number of times buffer has overflowed.
- stat_lost_sync: Counts number of times TSIF lost sync with input.
- stat_timeout: Counts number of times TSIF reached timeout
waiting for packets.
All counters can read and reset by writing to the respective file.
Change-Id: I475c2c0845c85ac22ea720059fb28c4a588fedcf
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
commit 72b785570b265c6fcb4cb907c0c3a3a4b311f1f1
Author: Liron Kuch <lkuch@codeaurora.org>
Date: Tue Oct 30 17:47:50 2012 +0200
media: dvb: mpq: TSPP output buffer allocation by demux plugin
The TSPP driver can allocate its output buffers internally or
externally. External buffer allocation is required when Demux wishes
to use the ION driver to allocate a physically contiguous buffer
(e.g. to pass to TZ).
This commit improves the TSPP driver support for external buffer
allocation and implements the external memory allocation and free
functions in the Demux driver.
Change-Id: I71da4f18c090ef224c4fc7b23f55b9b3636be996
Signed-off-by: Liron Kuch <lkuch@codeaurora.org>
commit 92705b3eb380826abf8ddefc25a8d210ffa64ff5
Author: Hamad Kadmany <hkadmany@codeaurora.org>
Date: Tue Oct 23 14:15:41 2012 +0200
tspp: Add option to inverse tsif signals
TSIF signals (clock, data, enable and sync) may be configured
to be inversed at TSPP unit input. This is useful in case
TSIF signals from external units need to be inversed.
Change-Id: Idd21948baccedc7499b31ed1d4df0f737538c870
Signed-off-by: Hamad Kadmany <hkadmany@codeaurora.org>
commit 435ad8e2157eec5783a435f1e7ec47f67d759882
Author: Joel Nider <jnider@codeaurora.org>
Date: Wed Dec 14 16:53:30 2011 +0200
tspp: add kernel api for video demux component
The demux is an in-kernel software component whose purpose is to take
an incoming TSIF stream and split it into multiple output channels
based on the PID field in each TS packet. Each output channel can be
used for a different purpose, such as audio, video or channel
information. In order to get good performance when moving such large
data streams around, the demux was placed in kernel-space as to
prevent copying memory buffers between kernel-space and user-space, at
least at this early stage in processing the traffic. Originally the
design of the TSPP driver was based on the earlier TSIF driver, so it
contained only a user-space API.
Change-Id: I22799eb19d9049e3635d5c589b02f999d9b8e1c7
Signed-off-by: Joel Nider <jnider@codeaurora.org>
commit 6544f3e52c9c1707a5a8fa90d32f89d80dabb4b9
Author: Joel Nider <jnider@codeaurora.org>
Date: Tue Jul 10 13:50:06 2012 +0300
tspp: use new clock preparation functions
Replace the clk_enable() with clk_prepare_enable() and replace
clk_disable() with clk_disable_unprepare() functions.
Change-Id: I63479090eccbeac46f091bf95faeb857139d23a4
Signed-off-by: Joel Nider <jnider@codeaurora.org>
commit b9662ca49cfe619e076476dcf8297a4031f0c310
Author: Joel Nider <jnider@codeaurora.org>
Date: Sun Jun 10 14:21:11 2012 +0300
tspp: use device name when getting clock
The new method for requesting clocks requires a driver to pass its
device name for comparison to the list of available clocks.
Change-Id: Ica5b09447de177beead90f8b7c721b84820fbdf7
Signed-off-by: Joel Nider <jnider@codeaurora.org>
commit 5556a8524591e4d1c4c9188316551900e8b8382d
Author: Joel Nider <jnider@codeaurora.org>
Date: Sun Oct 16 10:52:13 2011 +0200
misc: tspp: adding TSPP driver files
The TSPP driver manages the transport stream packet processor. This core
is used to offload the main CPU by handling MPEG TS packets, generally
coming from a broadcast modem using the ISDB-T (or variant) protocol.
Change-Id: Ia4c16dcce970ae0f52d8d17957a92fce34ecdb44
Signed-off-by: Joel Nider <jnider@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
Originally written by HTC. Contributions by Motorola and AKM.
misc: Import akm8975 from Motorola
Major style and code cleanups by Praveen Bharathi <pbharathi@motorola.com>
misc: akm8975: clean up code violations in akm8975.c
misc: akm8975: Clean up coding style, add suspend and resume
Change-Id: I4196913f15aec2dfbed47506d3dc085aada8e92d
Signed-off-by: Dima Zavin <dima@android.com>
When enabled, tracks the frequency of network transmissions
(inbound and outbound) and buckets them accordingly.
Buckets are determined by time between network activity.
Each bucket represents the number of network transmisions that were
N sec or longer apart. Where N is defined as 1 << bucket index.
This network pattern tracking is particularly useful for wireless
networks (ie: 3G) where batching network activity closely together
is more power efficient than far apart.
New file: /proc/net/stat/activity
output:
Min Bucket(sec) Count
1 7
2 0
4 1
8 0
16 0
32 2
64 1
128 0
Change-Id: I4c4cd8627b872a55f326b1715c51bc3bdd6e8d92
Signed-off-by: Mike Chan <mike@android.com>
