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ad400x: Support for pulsar HDL and STM32 #2105

Merged
merged 16 commits into from
May 31, 2024
Merged

ad400x: Support for pulsar HDL and STM32 #2105

merged 16 commits into from
May 31, 2024

Commits on May 28, 2024

  1. projects: ad400x: Compile fix for Pulsar HDL 

    The pulsar HDL now supports the ad400x parts.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
    @ahaslam2
    ahaslam2 committed May 28, 2024
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  2. drivers: ad400x: Allow device id with standard spi 

    Device id parameter is not set if using standard SPI. We need device
id to be able to set IIO attributes on the IIO driver.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  3. drivers: ad400x: Add conversion gpio 

    In standard SPI the CNV pin has to toggle before register access
or getting a conversion result.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  4. drivers: ad400x: Add support for more 400x parts 

    This adds device id's for more ad400x parts that can use this same
driver (AD4000, AD4001, AD4002, AD4004, AD4005, AD4006)

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
    @ahaslam2
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  5. drivers: ad400x: Fix xfer with when offload disabled 

    If offload is disabled, the xfer width must be byte aligned. We can
also simplify the macro wrappers around the set_xfer_width call.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
    @ahaslam2
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  6. drivers: ad400x: Fix single conversion transfer 

    Fixes to get correct data out of 4-wire turbo mode:

- For the chips that support 18 or 20 bit resolution, the least
  significant bits are in the higher nibble of the last byte.

- Sign needs to be taken into consideration when printing the result.

- The SDI line must remain high.

- Move the bit operations that format the data to the project file,
  as we can avoid the performance hit in the IIO case were scan_type
  gives this info to the app for post processing.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
    @ahaslam2
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  7. drivers: ad400x: Add clkgen and pwm 

    This adds axi clkgen and pwm to support the pulsar HDL, clkgen will
ckl the spi_engine and pwm is used as offload trigger.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  8. drivers: ad400x: use a pointer for spi_init parameters 

    use a pointer for spi_init parameters, to be consistent accross most
no-os projects, the parameters are passed by reference.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
    @ahaslam2
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  9. drivers: ad400x: Move offload to driver code 

    In preparation for iio and making the projects platform independant,
move the offload code to the driver so it is simply enabled or not
by the project code.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  10. drivers: ad400x: Add iio driver 

    Add initial IIO support for the ad400x driver.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  11. projects: ad400x-fmcz: Migrate to new folder structure 

    This migrates the ad400x project to the multiplatform sructure so
that we can add stm32 and iio examples

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  12. projects: ad400x-fmcz: Add iio example project 

    This adds the iio example project that makes use of the iio driver
for the ad400x.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  13. projects: ad400x-fmcz: Add stm32 platform 

    This adds the stm32 platfrom to the ad400x project. It uses the
standard spi of the stm32 and was tested using the sdp K1
development board.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  14. drivers: ad400x: Add device info structure 

    Instead of using separtate tables and exports, add a device info
structure to hold the per device resolution and sign.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  15. drivers: ad400x: Check for null dev pointer 

    The functions are missing a check for null dev pointer.
This adds the check.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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  16. projects: ad400x-fmcz: Add README documentation 

    This adds the project and driver documentation.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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