Commit graph

54 commits

Author SHA1 Message Date
Lucas Tamborrino
092406b08d esp32: drivers: i2c: fix command sequence
Closes #45008

Signed-off-by: Lucas Tamborrino <lucas.tamborrino@espressif.com>
2022-05-31 10:38:43 +02:00
Gerard Marull-Paretas
fb60aab245 drivers: migrate includes to <zephyr/...>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-05-06 19:58:21 +02:00
Glauber Maroto Ferreira
52dbd305da esp32s2: drivers: i2c: tweak FSM-related logic
Differently from ESP32, the ESP32-S2 SoC has native
hal support to reset its own I2C FSM in case of failure.
This commit removes warnings related to unused reset
logic, which does not really apply to ESP32-S2.

It also removes code and data structures related to pin
information from the build when the target SoC supports
hardware mechanisms to reset the I2C FSM.

Finally, it checks at compile time if the preconditions
for correct bus recovery are being met.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
2022-04-20 13:27:47 +02:00
Glauber Maroto Ferreira
bcf79464fa esp32: drivers: i2c: use pinctrl
though using pinctrl's subsystem, the I2C driver
keeps pin information in case of communication
failure. This information is needed in case of
FSM failure.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
2022-04-20 13:27:47 +02:00
Tomasz Bursztyka
16062c2e5a drivers: constify all device instances
Run cocci script to constify device instances.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2022-03-16 12:33:12 +01:00
Sylvio Alves
94327512a3 drivers: i2c: esp32: split stop command into a new transmission
STOP command was issued in the same transmission message
and as from esp-idf, this should be moved into a new
transmission.

Although it works in most scenarios, SHT3X sensor is one
case that presents reading error.

Closes #41385

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
2022-01-01 07:39:41 -05:00
Sylvio Alves
23d581d44c drivers: i2c: esp32: remove unused irq_line and add end packet
irq_line and irq_enabled call is not necessary as the interrupt
allocater enables it during its initialization.

it also adds end packet to all write transmission instead
of only at the end (burst data scenario)

Add check in gpio configuration check to avoid wrong gpio pins

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
2021-12-08 17:19:21 -05:00
Tom Burdick
7b1349cfe6 stats: i2c: I2C stats
Adds the ability for I2C drivers to report synchronous transfer stats
using a I2C specific macro to define the device instance.

The macro creates a container for device_state which allows for per
instance device class common data structure to be used in the device
class api (ex: i2c.h). This is used to maintain per driver instance
stats for all i2c drivers. This is a reusable idea across other device
classes as desired.

Using Kconfig device class stats may be turned on/off individually
this way as well, in this case I2C_STATS.

Signed-off-by: Tom Burdick <thomas.burdick@intel.com>
2021-12-04 07:22:56 -05:00
Konrad Sikorski
cb410abec0 drivers: i2c: fix esp32 i2c driver unwilled STOP and repeated START
- added messages check and fix before transfer
- fixed START and STOP signal generation conditions
- fixed semaphore release for empty messages

Signed-off-by: Konrad Sikorski <znfgnu@gmail.com>
2021-12-01 12:27:45 -05:00
Sylvio Alves
ab91612a6d driver: esp32: I2C code refactoring
Use i2c_hal functions to enable support for
multiple SoCs.

Use DT compat to enable I2C from device
tree configuration

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>
2021-11-05 14:07:09 -04:00
Glauber Maroto Ferreira
fb1632925e soc: esp32: partial code standardization
Replaces the prefixes of gpio_matrix_in and gpio_matrix_out
to unify those function calls on all supported socs.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
2021-10-10 14:52:41 -04:00
Glauber Maroto Ferreira
378278f61d esp32: drivers: interrupt_controller: review I2C interrupt usage
Review I2C interrupt allocation usage.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
2021-07-16 07:19:28 -04:00
Sylvio Alves
c58a218720 drivers: i2c: fix timing and stop bit
Current impĺementation fails due to missing stop bit
when reading data. This fixes it and refactor the implementation
by adding k_busy_wait when waiting I2C bus completion.

Also, this implementation is based on esp-idf v3.0.
It will be refactored based on latest esp-idf v4.3 using proper
low level calls.

Signed-off-by: Sylvio Alves <sylvio.alves@espressif.com>

Fixes #34015
2021-07-15 19:28:16 -04:00
Glauber Maroto Ferreira
84f599b228 esp32: i2c: fix: fixed error status handling
Fixed error status handling on ESP32's I2C.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
2021-05-06 13:20:45 -04:00
Gerard Marull-Paretas
a8245f78a1 drivers: i2c: remove usage of device_pm_control_nop
device_pm_control_nop is now deprecated in favour of NULL.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-04-28 10:55:49 -04:00
Anas Nashif
5d6c219210 drivers: device: do not reuse tag name 'device'
Do not reuse tag name (misra rule 5.7).

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-22 19:48:14 -04:00
Kumar Gala
9dfd87b931 device: esp32: Convert clock control to use DEVICE_DT_GET
Replace device_get_binding with DEVICE_DT_GET for getting access
to the clock controller device.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-02-18 12:42:53 -06:00
Kumar Gala
02703e60d9 device: Remove DEVICE_DT_DECLARE / DEVICE_DT_INST_DECLARE
Now that we generate a header that extern's all possible devicetree
based device struct we can remove DEVICE_DT_DECLARE and
DEVICE_DT_INST_DECLARE as they aren't needed anymore.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-01-15 07:16:21 -06:00
Mahavir Jain
29f87c3a0f boards: esp32: add XIP support and enable bootloader build
Disable RTC WDT enabled (by default) by 2nd stage bootloader in ESP-IDF.
This WDT timer ensures correct hand-over and startup sequence from
bootloader to application.

Enabling bootloader caused system clock initialization to fail
when clock rate is greater then 80MHz. This also fixes
esp32 clock source code.

Signed-off-by: Mahavir Jain <mahavir@espressif.com>
2021-01-13 09:10:46 -05:00
Kumar Gala
071e7adefb drivers: i2c: Convert drivers to new DT device macros
Convert i2c drivers from:

DEVICE_AND_API_INIT -> DEVICE_DT_INST_DEFINE
DEVICE_GET -> DEVICE_DT_INST_GET
DEVICE_DECLARE -> DEVICE_DT_INST_DECLARE

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-12-10 16:40:11 -06:00
Tomasz Bursztyka
4dcfb5531c isr: Normalize usage of device instance through ISR
The goal of this patch is to replace the 'void *' parameter by 'struct
device *' if they use such variable or just 'const void *' on all
relevant ISRs

This will avoid not-so-nice const qualifier tweaks when device instances
will be constant.

Note that only the ISR passed to IRQ_CONNECT are of interest here.

In order to do so, the script fix_isr.py below is necessary:

from pathlib import Path
import subprocess
import pickle
import mmap
import sys
import re
import os

cocci_template = """
@r_fix_isr_0
@
type ret_type;
identifier P;
identifier D;
@@
-ret_type <!fn!>(void *P)
+ret_type <!fn!>(const struct device *P)
{
 ...
(
 const struct device *D = (const struct device *)P;
|
 const struct device *D = P;
)
 ...
}

@r_fix_isr_1
@
type ret_type;
identifier P;
identifier D;
@@
-ret_type <!fn!>(void *P)
+ret_type <!fn!>(const struct device *P)
{
 ...
 const struct device *D;
 ...
(
 D = (const struct device *)P;
|
 D = P;
)
 ...
}

@r_fix_isr_2
@
type ret_type;
identifier A;
@@
-ret_type <!fn!>(void *A)
+ret_type <!fn!>(const void *A)
{
 ...
}

@r_fix_isr_3
@
const struct device *D;
@@
-<!fn!>((void *)D);
+<!fn!>(D);

@r_fix_isr_4
@
type ret_type;
identifier D;
identifier P;
@@
-ret_type <!fn!>(const struct device *P)
+ret_type <!fn!>(const struct device *D)
{
 ...
(
-const struct device *D = (const struct device *)P;
|
-const struct device *D = P;
)
 ...
}

@r_fix_isr_5
@
type ret_type;
identifier D;
identifier P;
@@
-ret_type <!fn!>(const struct device *P)
+ret_type <!fn!>(const struct device *D)
{
 ...
-const struct device *D;
...
(
-D = (const struct device *)P;
|
-D = P;
)
 ...
}
"""

def find_isr(fn):
    db = []
    data = None
    start = 0

    try:
        with open(fn, 'r+') as f:
            data = str(mmap.mmap(f.fileno(), 0).read())
    except Exception as e:
        return db

    while True:
        isr = ""
        irq = data.find('IRQ_CONNECT', start)
        while irq > -1:
            p = 1
            arg = 1
            p_o = data.find('(', irq)
            if p_o < 0:
                irq = -1
                break;

            pos = p_o + 1

            while p > 0:
                if data[pos] == ')':
                    p -= 1
                elif data[pos] == '(':
                    p += 1
                elif data[pos] == ',' and p == 1:
                    arg += 1

                if arg == 3:
                    isr += data[pos]

                pos += 1

            isr = isr.strip(',\\n\\t ')
            if isr not in db and len(isr) > 0:
                db.append(isr)

            start = pos
            break

        if irq < 0:
            break

    return db

def patch_isr(fn, isr_list):
    if len(isr_list) <= 0:
        return

    for isr in isr_list:
        tmplt = cocci_template.replace('<!fn!>', isr)
        with open('/tmp/isr_fix.cocci', 'w') as f:
            f.write(tmplt)

        cmd = ['spatch', '--sp-file', '/tmp/isr_fix.cocci', '--in-place', fn]

        subprocess.run(cmd)

def process_files(path):
    if path.is_file() and path.suffix in ['.h', '.c']:
        p = str(path.parent) + '/' + path.name
        isr_list = find_isr(p)
        patch_isr(p, isr_list)
    elif path.is_dir():
        for p in path.iterdir():
            process_files(p)

if len(sys.argv) < 2:
    print("You need to provide a dir/file path")
    sys.exit(1)

process_files(Path(sys.argv[1]))

And is run: ./fix_isr.py <zephyr root directory>

Finally, some files needed manual fixes such.

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Tomasz Bursztyka
e18fcbba5a device: Const-ify all device driver instance pointers
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Tomasz Bursztyka
98d9b01322 device: Apply driver_api/data attributes rename everywhere
Via coccinelle:

@r_device_driver_api_and_data_1@
struct device *D;
@@
(
D->
-	driver_api
+	api
|
D->
-	driver_data
+	data
)

@r_device_driver_api_and_data_2@
expression E;
@@
(
net_if_get_device(E)->
-	driver_api
+	api
|
net_if_get_device(E)->
-	driver_data
+	data
)

And grep/sed rules for macros:

git grep -rlz 'dev)->driver_data' |
	xargs -0 sed -i 's/dev)->driver_data/dev)->data/g'

git grep -rlz 'dev->driver_data' |
	xargs -0 sed -i 's/dev->driver_data/dev->data/g'

git grep -rlz 'device->driver_data' |
	xargs -0 sed -i 's/device->driver_data/device->data/g'

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Tomasz Bursztyka
af6140cc0d device: Apply config_info rename everywhere
Via coccinelle:

@r_device_config@
struct device *D;
@@

D->
-	config_info
+	config

And 2 grep/sed rules for macros:

git grep -rlz 'dev)->config_info' |
	xargs -0 sed -i 's/dev)->config_info/dev)->config/g'

git grep -rlz 'dev->config_info' |
	xargs -0 sed -i 's/dev->config_info/dev->config/g'

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Mohamed ElShahawi
f9e0fa9af3 drivers: esp32/clock_control: support UART, I2C
- Change default CPU Clock to 240MHz
(PLL is activated)
- I2C, UART will use sysclk from clock driver
- esp32_enable_peripheral replaced by
clock_control_on

Signed-off-by: Mohamed ElShahawi <ExtremeGTX@hotmail.com>
2020-06-16 09:00:51 -05:00
Kumar Gala
a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Martí Bolívar
6e8775ff84 devicetree: remove DT_HAS_NODE_STATUS_OKAY
Several reviewers agreed that DT_HAS_NODE_STATUS_OKAY(...) was an
undesirable API for the following reasons:

- it's inconsistent with the rest of the DT_NODE_HAS_FOO names
- DT_NODE_HAS_FOO_BAR_BAZ(node) was agreed upon as a shorthand
  for macros which are equivalent to
  DT_NODE_HAS_FOO(node) && DT_NODE_HAS_BAR(node) &&
- DT_NODE_HAS_BAZ(node), and DT_HAS_NODE_STATUS_OKAY is an odd duck
- DT_NODE_HAS_STATUS(..., okay) was viewed as more readable anyway
- it is seen as a somewhat aesthetically challenged name

Replace all users with DT_NODE_HAS_STATUS(..., okay), which is
semantically equivalent.

This is mostly done with sed, but a few remaining cases were done by
hand, along with whitespace, docs, and comment changes. These special
cases include the Nordic SOC static assert files.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-05-13 18:24:42 +02:00
Tomasz Bursztyka
97326c0445 device: Fix structure attributes access
Since struct devconfig was merged earlier into struct device, let's fix
accessing config_info, name, ... attributes everywhere via:

grep -rlZ 'dev->config->' | xargs -0 sed -i 's/dev->config->/dev->/g'

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-05-08 23:07:44 +02:00
Martí Bolívar
87e1743ae0 devicetree: replace DT_HAS_DRV_INST with DT_INST_FOREACH
Make drivers multi-instance wherever possible using DT_INST_FOREACH.
This allows removing DT_HAS_DRV_INST in favor of making drivers just
do the right thing regardless of how many instances there are.

There are a few exceptions:

- SoC drivers which use CMake input files (like i2c_dw.c) or otherwise
  would require more time to convert than I have at the moment. For the
  sake of expediency, just inline the DT_HAS_DRV_INST expansion for
  now in these cases.

- SoC drivers which are explicitly single-instance (like the nRF SAADC
  driver). Again for the sake of expediency, drop a BUILD_ASSERT in
  those cases to make sure the assumption that all supported SoCs have
  at most one available instance is valid, failing fast otherwise.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2020-05-06 17:35:08 -05:00
Peter Bigot
e9c5e4824c drivers: i2c: fix esp32 timeout parameter
The value is milliseconds and must be wrapped for use with the new
timeout API.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-04-11 15:29:09 -04:00
Kumar Gala
8ea8925ebe drivers: esp32: Convert esp32 drivers to new DT_INST macros
Convert older DT_INST_ macro use in esp32 drivers to the new
include/devicetree.h DT_INST macro APIs.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-03-26 08:49:11 -05:00
Mohamed ElShahawi
fef3ebaa69 drivers: gpio_esp32: update to use new GPIO API
- Updates gpio driver and device tree files to the new GPIO Config flags
- Implements the new port_* APIs
- Update I2C and PWM Drivers to use new GPIO config
- Add esp32.overlay to gpio_basic_api test
- refactor convert_int_type, regs struct
- remove config_polarity
- add kConfig notes

Tests:
- samples/basic/blinky
- samples/basic/button
- tests/drivers/gpio/gpio_basic_api
- tests/drivers/gpio/gpio_api_1pin

Board:
- esp32 DevKitC V4

Note about interrupts:
The ESP32 requires specifying a CPU interrupt to be used for GPIO
interrupt signals.  CPU interrupts can be either level or edge (or
special) triggered, but not both.
Please check gpio/Kconfig.esp32 for more info.

Signed-off-by: Mohamed ElShahawi <ExtremeGTX@hotmail.com>
2020-02-05 12:00:36 +01:00
Peter Bigot
22bc403c17 treewide: use full path to gpio/gpio_esp32.h header
The build infrastructure should not be adding the drivers subdirectory
to the include path.  Fix the legacy uses that depended on that
addition.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-01-26 17:52:12 +01:00
Mohamed ElShahawi
566d07e00c [ESP32] drivers: Add I2C Device tree support
- Add I2C modules to esp32.dtsi
- I2C Pins and bitrate config moved to esp32.dts

Signed-off-by: Mohamed ElShahawi <ExtremeGTX@hotmail.com>
2019-10-22 08:01:24 -05:00
Anas Nashif
a2fd7d70ec cleanup: include/: move misc/util.h to sys/util.h
move misc/util.h to sys/util.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
8f692c7d38 cleanup: include/: move i2c.h to drivers/i2c.h
move i2c.h to drivers/i2c.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Anas Nashif
6aa9c3a68f cleanup: include/: move gpio.h to drivers/gpio.h
move gpio.h to drivers/gpio.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Michael Zimmermann
8ae17cb206 drivers: i2c: i2c_esp32: fix configuring speed
the driver was actually using 1/4th instead of 1/2th and
1/8th instead of 1/4th periods.

Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
2019-05-30 08:29:17 -04:00
Patrik Flykt
24d71431e9 all: Add 'U' suffix when using unsigned variables
Add a 'U' suffix to values when computing and comparing against
unsigned variables.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-28 17:15:58 -05:00
Carlos Stuart
75f77db432 include: misc: util.h: Rename min/max to MIN/MAX
There are issues using lowercase min and max macros when compiling a C++
application with a third-party toolchain such as GNU ARM Embedded when
using some STL headers i.e. <chrono>.

This is because there are actual C++ functions called min and max
defined in some of the STL headers and these macros interfere with them.
By changing the macros to UPPERCASE, which is consistent with almost all
other pre-processor macros this naming conflict is avoided.

All files that use these macros have been updated.

Signed-off-by: Carlos Stuart <carlosstuart1970@gmail.com>
2019-02-14 22:16:03 -05:00
Kumar Gala
9aa027b402 drivers: i2c: i2c_esp32: Fix Kconfig typo mismatch
The Kconfig symbols for RX/TX LSB first didn't match between the driver
and the Kconfig file.  Change driver to match Kconfig symbol names

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-02-11 22:29:58 -05:00
Patrik Flykt
8ff96b5a57 drivers: Add 'U' to unsigned variable assignments
Add 'U' to a value when assigning it to an unsigned variable.
MISRA-C rule 7.2

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2018-12-04 22:51:56 -05:00
Flavio Ceolin
0866d18d03 irq: Fix irq_lock api usage
irq_lock returns an unsigned int, though, several places was using
signed int. This commit fix this behaviour.

In order to avoid this error happens again, a coccinelle script was
added and can be used to check violations.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-08-16 19:47:41 -07:00
Vitor Massaru Iha
f8718758e5 include: drivers: gpio: Turn functions generic - esp32
On 'drivers/i2c_esp32.c' there are functions useful for other
drivers. Functions and struct went moved to:

 * arch/xtensa/soc/esp32/peripheral.h
 * arch/xtensa/soc/esp32/soc.h
 * include/drivers/gpio/gpio_esp32.h

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-07-15 16:13:36 -04:00
Vitor Massaru Iha
e9d1015da9 drivers: i2c: esp32: Fix to_read value on i2c_esp32_read_msg()
to_read is the minimum value between I2C_ESP32_BUFFER_SIZE
and (msg.len - 1) rather than the maximum value.

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-02-07 14:52:52 -05:00
Vitor Massaru Iha
74321ec9fd drivers: i2c: esp32: Fix msg.len on i2c_esp32_write_addr()
msg.len is incremented only when I2C master writes to slave.

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-02-07 14:52:52 -05:00
Vitor Massaru Iha
463bfb3489 drivers: i2c: esp32: Fix increase I2C_ESP32_SPIN_THRESHOLD
Increase I2C_ESP32_SPIN_THRESHOLD to avoid read or write timeout.
This is an empirical value.

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-02-07 14:52:52 -05:00
Vitor Massaru Iha
93c3def27e drivers: i2c: esp32: Fix command opcode on i2c_esp32_write_addr()
When I2C Master writes to slave on CMD_Controller, opcode WRITE
was set twice instead of 1 WRITE at the beginning of the
transmission.

And when Master reads from slave, on CMD_Controller,
byte_num = 1 + data_lenght instead of byte_num = 1 at the
beginning of the transmission.

Note that is for 7 bits addresses, to 10 bit adressess is added
more 1 in byte_num as can be seen in the code above this fix.

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-02-07 14:52:52 -05:00
Vitor Massaru Iha
6452b2e5e2 drivers: i2c: esp32: Fix command address on i2c_esp32_write_msg()
The wait address command must be the last command address.

Unncessary variable was removed.

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-02-07 14:52:52 -05:00
Vitor Massaru Iha
685f09779d drivers: i2c: esp32: Fix END opcode on i2c_esp32_write_msg()
After a STOP opcode the transmission stops. The END opcode in this
case is unnecessary.

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
2018-02-07 14:52:52 -05:00