Ivan Grokhotkov [Wed, 12 Jul 2017 13:17:28 +0000 (21:17 +0800)]
sdmmc: add support for high speed (HS) mode
By default SD cards are initialized in default speed (DS) mode. Enabling
HS mode requires SWITCH_FUNC command to be sent twice: first time to
query if the card supports switching to HS mode, second time to perform
the switch.
This change implements SWITCH_FUNC command and adds the procedure to
switch to HS mode.
Ivan Grokhotkov [Wed, 12 Jul 2017 13:11:47 +0000 (21:11 +0800)]
sdmmc: implement deselecting a card
In some cases the card needs to be returned to standby mode from data
transfer mode. This is done using CMD7 command, which does not receive
any response in this case.
Ivan Grokhotkov [Wed, 12 Jul 2017 13:04:54 +0000 (21:04 +0800)]
sdmmc: introduce is_app_cmd flag, check it along with opcode
‘make_hw_cmd’ function checks opcodes in a few cases. Comparing opcode
does not tell the whole story, because for some SD commands there is are
APP commands with the same opcodes. This change introduces a flag which
indicates whether the next command is going to be an APP command.
The check for APP_SET_BUS_WIDTH command is updated to use this flag.
This fixes a bug with an unexpected STOP_TRANSMISSION command sent after
SWITCH_FUNC command, which has opcode 6, same as APP_SET_BUS_WIDTH.
Ivan Grokhotkov [Wed, 12 Jul 2017 11:44:17 +0000 (19:44 +0800)]
sdmmc: don’t flip word order in MMC_RSP_BITS
MMC_RSP_BITS helper function had a hack that it flipped word order in
the response, assuming that response size is 4 words. This hack does not
work for responses which are not 4 words long (such as the SWITCH_FUNC
response, which is 64 words long).
This change removes the hack and the matching word order reversal code
in sdmmc driver.
Ivan Grokhotkov [Wed, 16 Aug 2017 10:43:56 +0000 (18:43 +0800)]
Merge branch 'feature/remove_wifi_config_option' into 'master'
Remove wifi config option
Remove Wi-Fi enable/disable option from Kconfig. This can be detected by the presence of esp_wifi_init() function in the application. Minimum footprint impact after the change.
Kedar Sovani [Tue, 8 Aug 2017 04:53:52 +0000 (10:23 +0530)]
kconfig: Remove Wi-Fi on/off as a menuconfig option
This is no longer required since the functions automatically get
pulled in based on the usage. A quick summary of footprint
comparisions before and after these set of patches is shown below:
Hello-World: (simplified for readability)
old Total image size:~ 104902 bytes (.bin may be padded larger)
old Total image size:~ 105254 bytes (.bin may be padded larger)
Per-archive contributions to ELF file:
Archive File DRAM .data & .bss IRAM Flash code & rodata Total
old libesp32.a 1973 177 4445 3939 2267 12801
new libesp32.a 1973 185 4473 3939 2267 12837
new libnvs_flash.a 0 92 0 274 8 374
new libstdc++.a 0 0 0 24 0 24
For some reason, nvs_flash.a (~400bytes) gets pulled in (particularly
the nvs_flash_init() function).
Power-Save: (simplified for readability)
old Total image size:~ 421347 bytes (.bin may be padded larger)
old Total image size:~ 421235 bytes (.bin may be padded larger)
old libtcpip_adapter.a 0 81 0 1947 115 2143
new libtcpip_adapter.a 0 69 0 1897 115 2081
The size actually shrinks a bit, since the AP interface function
doesn't get pulled in.
Kedar Sovani [Tue, 8 Aug 2017 04:48:14 +0000 (10:18 +0530)]
tcpip_adapter: Decompose tcpip_adapter_start() into interface specification options
Since only the used interface's start function gets called, it pulls
in only the functions that are required in the current application,
thereby saving footprint.
michael [Tue, 1 Aug 2017 08:00:58 +0000 (16:00 +0800)]
fix(spi_master): make the address field more intuitive to use.
The address field should be placed at the highest bits of address and slv_wr_status registers. Instead of breaking the address into two parts and fill in each register, move the address to the highest bits and write to the registers respectively.
Breaking change: if you fill-in the SPI address filed in a previous version in some way and it works correctly, you still have to rewrite the address, in a more intuitive way.
Ivan Grokhotkov [Mon, 31 Jul 2017 18:24:25 +0000 (02:24 +0800)]
sdmmc: fix reads/writes to/from unaligned buffers
SDMMC hardware treats all buffers as aligned, and ignores 2 LSBs of
addresses written into DMA descriptors. Previously SDMMC host driver
assumed that data buffers passed from SDDMC command layer would be
aligned. However alignment checks were never implemented in the command
layer, as were the checks that the buffer coming from the application
would be in DMA capable memory. Most of the time this was indeed true.
However in some cases FATFS library can pass buffers offset by 2 bytes
from word boundary. “DMA capable” restriction may be broken if pSRAM
support is used.
This change adds buffer checks to the SDMMC host driver (alignment and
DMA capability), so that the host layer will error out for incompatible
buffers. In SDMMC command layer, a check is added to read and write
functions. If an incompatible buffer is passed from the application, new
buffer (512 bytes size) is allocated, and the transfer is performed
using {READ,WRITE}_SINGLE_BLOCK commands.
Liu Zhi Fu [Wed, 19 Jul 2017 01:15:11 +0000 (09:15 +0800)]
lwip: optimize TCP close
Optimize TCP close:
1. Not remove TCP pcb when IP address is changed since the lwip netconn still need the pcb
2. If the TCP connection is in TCP_FIN_WAIT_1 for too long time, remove it
Ivan Grokhotkov [Wed, 26 Jul 2017 05:51:37 +0000 (13:51 +0800)]
Merge branch 'feature/sdspi_driver' into 'master'
SD SPI mode driver
This MR adds functionality to support SD cards connected via SPI interface.
Additionally, two bugs are fixed:
- Definition of `SPI_TRANS_MODE_DIOQIO_ADDR` in spi_master driver
- SD card probing frequency was 4000kHz instead of 400kHz as required by the standard
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