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path: root/drivers/net/wireless/intel/iwlwifi/fw/acpi.c
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2021-08-26iwlwifi: skip first element in the WTAS ACPI tableAbhishek Naik
By mistake we were considering the first element of the WTAS wifi package as part of the data we want to rid, but that element is the wifi package signature (always 0x07), so it should be skipped. Change the code to read the data starting from element 1 instead. Signed-off-by: Abhishek Naik <abhishek.naik@intel.com> Fixes: 28dd7ccdc56f ("iwlwifi: acpi: read TAS table from ACPI and send it to the FW") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805141826.ff8148197b15.I70636c04e37b2b57a5df3ce611511f62203d27a7@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26iwlwifi: convert flat GEO profile table to a struct versionLuca Coelho
The GEO profiles have been stored in single-dimension arrays and the access has been done via a single index. We will soon need to support different revisions of this table, which will make the flat array even harder to handle. To prepare for that, convert the single-dimension array to a struct with substructures. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805141826.56f3506411a2.I600ed3708d19f2263a5a8d143f6711d08499bbb0@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26iwlwifi: support reading and storing EWRD revisions 1 and 2Luca Coelho
As an extension to the WRDS support for revisions 1 and 2, do the same for the EWRD tables. These tables have a very similar format to the WRDS table, so most of the code is similar. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805141826.2d5494de683c.Ia024b1368873d488906a639e29454cbbdc788d03@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26iwlwifi: acpi: support reading and storing WRDS revision 1 and 2Luca Coelho
Change the SAR profile tables storage to revision 2 regardless of the revision we read from ACPI. Revision 2 is a superset of revision 1, which is in turn a superset of revision 0, so they can all be stored inside revision 2. Add support for reading and storing also revisions 1 and 2, whose only difference is the number of chains and number of sub-bands. So most of the code revolves around passing different chain and sub-band sizes. With this patch we still pass only revision 0 to the firmware, but that will be changed in a separate patch. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805141826.2edad09415c8.I36297aef90a9ec6a3ea1bf1a151a62f272826d59@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26iwlwifi: pass number of chains and sub-bands to iwl_sar_set_profile()Luca Coelho
The number of chains and sub-bands read from the ACPI tables varies depending on the revision. Pass these numbers to the iwl_sar_set_profile() function in order to make using different revisions easier. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805141826.905b54c398f8.I9bac8c3bc3b1b6bbe813de53746daee33e53fc86@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26iwlwifi: convert flat SAR profile table to a struct versionLuca Coelho
The SAR profiles have been stored in single-dimension arrays and the access has been done via a single index. We will soon need to support different revisions of this table, which will make the flat array even harder to handle. To prepare for that, convert the single-dimension array to a struct with substructures. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805130823.01530088097f.I903c236a574c7e4c0fc4db101fc39c0f5415ca43@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-08-26iwlwifi: rename ACPI_SAR_NUM_CHAIN_LIMITS to ACPI_SAR_NUM_CHAINSLuca Coelho
The "LIMITS" in the macro name don't have much meaning, so remove it to make the macro shorter and better reflect that this is the number of chains that we have limits for. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210805130823.65591c9fa2af.Ie7e4ba94c903ef444cb07df61891394c11c7c864@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-06-24iwlwifi: acpi: remove unused function iwl_acpi_eval_dsm_func()Kalle Valo
Stephen reported a warning: drivers/net/wireless/intel/iwlwifi/fw/acpi.c:720:12: warning: 'iwl_acpi_eval_dsm_func' defined but not used [-Wunused-function] The warning is correct and the function is not used anywhere, so let's just remove it. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 7119f02b5d34 ("iwlwifi: mvm: support BIOS enable/disable for 11ax in Russia") Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Acked-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210624052918.4946-1-kvalo@codeaurora.org
2021-06-22iwlwifi: mvm: support BIOS enable/disable for 11ax in RussiaMiri Korenblit
Read the new BIOS DSM and Pass to FW if to disable\enable 11ax for Russia according to the BIOS key. This is needed to enable OEMs to control enable/disable 11ax in Russia. Also add support for future "enable 11ax in country X" features. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210612142637.a705f7cedff8.I580f1021cabcc37e88f5ec5e9a6bbf00aae514b6@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14iwlwifi: mvm: add support for version 3 of LARI_CONFIG_CHANGE command.Miri Korenblit
Add support for version 3 of the LARI_CONFIG_CHANGE command. This is needed to support FW API change which is needed to support 11ax enablement in Russia. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210411124418.7e68856c8a95.I83acdbe39b63c363cabc04ad42d1d0b9ce98901c@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14iwlwifi: mvm: refactor ACPI DSM evaluation functionHarish Mitty
Instead of implementing the DSM evaluation function in the MVM code, refactor it so it can be generalized and part of the common ACPI implementation. Signed-off-by: Harish Mitty <harish.mitty@intel.com> [reworded subject and commit message] Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210331121101.a24af3551aac.I8e6bd5eb05f853b6331fa4823750f7ba8ffe46e6@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14iwlwifi: mvm: support BIOS enable/disable for 11ax in UkraineMiri Korenblit
Read the new BIOS DSM and Pass to FW if to disable\enable 11ax for Ukraine according to the BIOS key. this is needed to enable OEMs to control enable/disable 11ax in Ukraine Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210331121101.055654e7707e.If7eaf9839cd5d59729a235df07e31668b408e740@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-04-14iwlwifi: mvm: enable PPAG in ChinaMiri Korenblit
Add support for ppag in China by reading revision 2 of the ppag table from ACPI, and passing the data to the FW. This is needed to enable OEMs to control ppag enablement in China. Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210331121101.69af388d0dce.I8cfddf9e6837bf394b00390181b4b774ded19acd@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-11iwlwifi: acpi: add support for DSM RFIGregory Greenman
BIOS provides RFI feature enable/disable state via WiFi DSM ACPI object. By default the feature should be disabled. The GUID for this feature is different from the one driver currently uses, so need to provide a set of new definitions. Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210210171218.242bfe368981.Iaccce1e2fa3986b174d0b08942aa4fbf8bb94a95@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-02-10iwlwifi: acpi: don't return valid pointer as an ERR_PTRHaim Dreyfuss
iwl_acpi_get_wifi_pkg() may return a valid pointer (meaning success), while `tbl_rev` is invalid (equel to 1). In this case, we will treat that as an error. Subsequent "users" of this "error code" may either check for nonzero (good; pointers are never zero) or negative (bad; pointers may be "positive") fix that by splitting the if statement. First check if IS_ERR(wifi_pkg) and then if tbl_rev != 0. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210210142629.1c8c4b58c932.I147373f6fd364606b0282af8d402c722eb917225@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2021-01-25iwlwifi: mvm: fix the return type for DSM functions 1 and 2Matt Chen
The return type value of functions 1 and 2 were considered to be an integer inside a buffer, but they can also be only an integer, without the buffer. Fix the code in iwl_acpi_get_dsm_u8() to handle it as a single integer value, as well as packed inside a buffer. Signed-off-by: Matt Chen <matt.chen@intel.com> Fixes: 9db93491f29e ("iwlwifi: acpi: support device specific method (DSM)") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/iwlwifi.20210122144849.5757092adcd6.Ic24524627b899c9a01af38107a62a626bdf5ae3a@changeid
2020-12-11iwlwifi: fw: acpi: Demote non-conformant function headersLee Jones
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'dev' not described in 'iwl_acpi_get_dsm_object' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'rev' not described in 'iwl_acpi_get_dsm_object' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'func' not described in 'iwl_acpi_get_dsm_object' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:123: warning: Function parameter or member 'args' not described in 'iwl_acpi_get_dsm_object' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:142: warning: Function parameter or member 'dev' not described in 'iwl_acpi_get_dsm_u8' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:142: warning: Function parameter or member 'rev' not described in 'iwl_acpi_get_dsm_u8' drivers/net/wireless/intel/iwlwifi/fw/acpi.c:142: warning: Function parameter or member 'func' not described in 'iwl_acpi_get_dsm_u8' Cc: Johannes Berg <johannes.berg@intel.com> Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Cc: Luca Coelho <luciano.coelho@intel.com> Cc: Intel Linux Wireless <linuxwifi@intel.com> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20201126133152.3211309-17-lee.jones@linaro.org
2020-12-10iwlwifi: use SPDX tagsJohannes Berg
Use SPDX tags instead of the long copyright notices. Also cleanup some duplicate copyright notices and combine the years where possible. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20201210000603.481bcb512a6f.I8146abe5a637079e7336209f23cb26af98b12b31@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-12-10iwlwifi: follow the new inclusive terminologyEmmanuel Grumbach
The new inclusive terminology requires to change a few terms that were used in iwlwifi. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20201209231352.1eb4c8625f36.I1b17b68d4a8e77071da3e15ffbd902d15c1d4938@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-08iwlwifi: fix sar geo table initializationNaftali Goldstein
When adding support for version 3 of the GEO_TX_POWER_LIMIT command, the table argument of iwl_sar_geo_init was changed from a pointer a 1d array of now-removed iwl_per_chain_offset_group_v1 to a pointer to a 2d array of iwl_per_chain_offset (iwl_per_chain_offset_group_v1 was a struct containing 2 copies of iwl_per_chain_offset). So even for version 2 where the second dimension is of length 2, which means that the underlying memory layout of the array didn't change, this requires a small change in the way we loop over it, and this was missed. Additionally, for the case of version 3 where the second dimension is now 3, in order to fill the first two elements of each row correctly (lb and hb), iwl_sar_geo_init must get the true number of bands supported. But because we don't yet store any values for the 3rd (uhb) band, skip that band. Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/iwlwifi.20201008181047.73605b6e0548.Id0ec98333277ff9e017e3938ae413b34acc68947@changeid
2020-10-01iwlwifi: support version 3 of GEO_TX_POWER_LIMITLuca Coelho
Add support for the new version of the GEO_TX_POWER_LIMIT command. This new version includes UHB values in the table, but for now, since we don't have the ACPI values yet, we support the API, but don't set the extra values. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200928121852.3700197ed1ed.Ia53fb9c4b5033683fd426d51a0ddc46fb444c805@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01iwlwifi: acpi: rename geo structs to contain versioningLuca Coelho
Add the version number to the iwl_geo_tx_power_profile_cmd structs and move the union into a common place. Additionally, reuse the code that sets elements that are at the same place in the struct across different versions. While at it remove an unused variable, add a comment and move the v2 specific element setting to inside the if statement. Additionally, invert the if for slightly more readability. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200928121852.23ec241f16cd.I8cd21fc5a2498e820b50e1f49a4cbfe545afe30e@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01iwlwifi: acpi: prepare SAR profile selection code for multiple sizesLuca Coelho
The SAR profile tables will be larger in the next version, so prepare the iwl_sar_select_profile() function to handle multiple sizes and update the relevant callers. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200928121852.da5a95917df4.I84d44c9dd0b858c403a81ca621b5a7b615a3aa7e@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01iwlwifi: add a common struct for all iwl_tx_power_cmd versionsLuca Coelho
Create a common structure to contain all different versions of the tx_power_cmd instead of making a union of the different structs everywhere we need them. Also move the common part of these structs into a separate structure (instead of reusing v3) and leave the per_chain_restriction part out of the common part, because this will change in version 6 of the command (which will be added soon). While at it, rename per_chain_restriction to per_chain to shorten it. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200928121852.4f0bea9fe077.Ib3b540a8288af32d6fa213448e13f82763f85bc9@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01iwlwifi: remove iwl_validate_sar_geo_profile() exportLuca Coelho
Only iwlmvm uses this function and it's so simple that it's clearer if it's spelled out in the code anyway, so remove it and add the check where needed. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200926002540.9e2f296f5cfc.I4b2c025768b5ceff93a80ba0ae9ee7784d6d7402@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-10-01iwlwifi: don't export acpi functions unnecessarilyLuca Coelho
A couple of functions were exported from the acpi.c file unnecessarily, since they are only used internally in that file. Make them static. Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200926002540.6449efabcb8b.I030fa71253260f34b588951d78170551b633c046@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2020-05-29iwlwifi: acpi: support device specific method (DSM)Gil Adam
ACPI Device Specific Method (DSM) allows standardized feature configuration through the ACPI interface without the namespace pollution of the usual mechanism (ACPI method for each feature). Add generic function for evaluating DSM objects and function for evaluating a DSM with no arguments and a single int return value. also implement the required backport for UUID. Signed-off-by: Gil Adam <gil.adam@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200529092401.c3242ff3ba5c.Icb48c8d61bede5dda7ef267bff10e4798e9dc77b@changeid
2020-05-07Merge tag 'wireless-drivers-next-2020-05-07' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for v5.8 First set of patches for v5.8. Changes all over, ath10k apparently seeing most new features this time. rtw88 also had lots of changes due to preparation for new hardware support. In this pull request there's also a new macro to include/linux/iopoll: read_poll_timeout_atomic(). This is needed by rtw88 for atomic polling. Major changes: ath11k * add debugfs file for testing ADDBA and DELBA * add 802.11 encapsulation offload on hardware support * add htt_peer_stats_reset debugfs file ath10k * enable VHT160 and VHT80+80 modes * enable radar detection in secondary segment * sdio: disable TX complete indication to improve throughput * sdio: decrease power consumption * sdio: add HTT TX bundle support to increase throughput * sdio: add rx bitrate reporting ath9k * improvements to AR9002 calibration logic carl9170 * remove buggy P2P_GO support p54usb * add support for AirVasT USB stick rtw88 * add support for antenna configuration ti wlcore * add support for AES_CMAC cipher iwlwifi * support for a few new FW API versions * new hw configs ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-24iwlwifi: acpi: read TAS table from ACPI and send it to the FWMordechay Goodstein
Read the Time Averaged SAR (TAS) table from ACPI and if TAS feature is enabled in the FW send the black list countries which TAS is disabled in to the FW Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20200418110539.40a327d32cfd.I7203f3afc8186cca34c48a1a116baac1df5eff4e@changeid
2020-04-21iwlwifi: fix WGDS check when WRDS is disabledLuca Coelho
In the reference BIOS implementation, WRDS can be disabled without disabling WGDS. And this happens in most cases where WRDS is disabled, causing the WGDS without WRDS check and issue an error. To avoid this issue, we change the check so that we only considered it an error if the WRDS entry doesn't exist. If the entry (or the selected profile is disabled for any other reason), we just silently ignore WGDS. Cc: stable@vger.kernel.org # 4.14+ Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=205513 Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/iwlwifi.20200417133700.72ad25c3998b.I875d935cefd595ed7f640ddcfc7bc802627d2b7f@changeid
2020-03-23iwlwifi: don't send GEO_TX_POWER_LIMIT if no wgds tableGolan Ben Ami
The GEO_TX_POWER_LIMIT command was sent although there is no wgds table, so the fw got wrong SAR values from the driver. Fix this by avoiding sending the command if no wgds tables are available. Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com> Fixes: 39c1a9728f93 ("iwlwifi: refactor the SAR tables from mvm to acpi") Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Tested-By: Jonathan McDowell <noodles@earth.li> Tested-by: Len Brown <len.brown@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/iwlwifi.20200318081237.46db40617cc6.Id5cf852ec8c5dbf20ba86bad7b165a0c828f8b2e@changeid
2019-12-24iwlwifi: fw: make pos static in iwl_sar_get_ewrd_table() loopLuca Coelho
In the for loop where we are supposed to go through the entire table, we are using a non-static local to keep the pos index. This makes each iteration start with 3, so we always access the first item on the table. Fix this by moving the variable outside of the loo so it doesn't lose its value at every iteration. Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Fixes: ba3224db7803 ("iwlwifi: mvm: fix an out-of-bound access") Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-11-15iwlwifi: refactor the SAR tables from mvm to acpiIhab Zhaika
Refactored the SAR related functions from iwlmvm to acpi in order to make it shared between different opmodes in addition to removing unused variable ppag_rev. Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-10-09iwlwifi: fix ACPI table revision checksLuca Coelho
We can't check for the ACPI table revision validity in the same if where we check if the package was read correctly, because we return PTR_ERR(pkg) and if the table is not valid but the pointer is, we would return a valid pointer as an error. Fix that by moving the table checks to a separate if and return -EINVAL if it's not valid. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-06-29iwlwifi: Add support for SAR South Korea limitationHaim Dreyfuss
South Korea is adding a more strict SAR limit called "Limb SAR". Currently, WGDS SAR offset group 3 is not used (not mapped to any country). In order to be able to comply with South Korea new restriction: - OEM will use WGDS SAR offset group 3 to South Korea limitation. - OEM will change WGDS revision to 1 (currently latest revision is 0) to notify that Korea Limb SAR applied. - Driver will read the WGDS table and pass the values to FW (as usual) - Driver will pass to FW an indication that Korea Limb SAR is applied in case table revision is 1. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-02-14iwlwifi: mvm: add support for 32kHz external clock indicationHaim Dreyfuss
In low power modes, the chip clock source for platform integrated devices is 32kHz. It is generated internally and supplied by a crystal oscillator. However using a 32kHz sourced from crystal oscillator has high power penalty. There is an option to get an external 32kHz clock from the platform. Past experience shows that the reliability is platform dependent, i.e. on some platforms it works good and on other it doesn’t. Working from external clock will save 0.5 mW in sleep state, from overall 1.8mW that we have today, i.e. almost 30%. Each OEM can enable or disable the use of the external 32kHz clock by setting a BIOS configuration. In case the OEM configured to use 32kHz external clock the driver will pass this indication to the FW. Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-08-31iwlwifi: remove all occurrences of the FSF address paragraphLuca Coelho
The Free Software Foundation address is superfluous and causes checkpatch to issue a warning when present. Remove all paragraphs with FSF's address to prevent that. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06iwlwifi: acpi: move code that reads SPLC to acpiLuca Coelho
Move most of the set_dflt_pwr_limit() function to acpi.c and make it return the pwr_limit value instead of setting directly. Also rename it to iwl_acpi_get_pwr_limit(). Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06iwlwifi: acpi: move function to get mcc into acpi codeLuca Coelho
The iwl_get_bios_mcc() function was in the iwl-nvm-parse.c file, but it has nothing to do with the NVM. Move it to fw/acpi.c and rename it to iwl_acpi_get_mcc(). Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06iwlwifi: acpi: generalize iwl_mvm_sar_find_wifi_pkg()Luca Coelho
Move this function to acpi.c, renaming it to iwl_acpi_get_wifi_pkg(), because it can also be used with other methods (i.e. SPLC and WRDD). Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-10-06iwlwifi: acpi: add common code to read from ACPILuca Coelho
There are many places where the same process of invoking a method from ACPI is used, causing a lot of duplicate code. To improve this, introduce a new function to get an ACPI object by invoking an ACPI method that can be reused. Additionally, since this function needs to be called when we only have the trans, the opmode or the device, introduce a new debug macro that gets the device as a parameter so it can be used in the new function. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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