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adi_v5_dapdirect: add support for adapter drivers that provide DAP API

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Some high level adapters, like STLINK-V3 and new firmware for
ST-Link/V2, provide API to directly access the DAP registers
hiding the details of the physical transport JTAG or SWD.
OpenOCD has already the intermediate API in struct dap_ops that
are suitable for such adapters, but are not exposed to the
adapter drivers.

Add in struct adapter_driver two independent struct dap_ops for
the cases of physical JTAG and SWD transport.
Add new transport names "dapdirect_jtag" and "dapdirect_swd", to
be used by the drivers that provide one or both DAP API.
Add the necessarily glue in target/adi_v5_dapdirect.c

Change-Id: I2bb8e3a80fba750f2c218d877cfa5888428e3c28
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/4903
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Antonio Borneo
2019-01-23 10:52:28 +01:00
committed by Tomas Vanek
parent c6b6fdeb2c
commit a61ec3c1d7
6 changed files with 240 additions and 2 deletions
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6
src/jtag/core.c
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@@ -2052,7 +2052,8 @@ int adapter_assert_reset(void)
else
jtag_add_reset(0, 1);
return ERROR_OK;
} else if (transport_is_swd() || transport_is_hla())
} else if (transport_is_swd() || transport_is_hla() ||
transport_is_dapdirect_jtag() || transport_is_dapdirect_swd())
return adapter_system_reset(1);
else if (get_current_transport() != NULL)
LOG_ERROR("reset is not supported on %s",
@@ -2067,7 +2068,8 @@ int adapter_deassert_reset(void)
if (transport_is_jtag()) {
jtag_add_reset(0, 0);
return ERROR_OK;
} else if (transport_is_swd() || transport_is_hla())
} else if (transport_is_swd() || transport_is_hla() ||
transport_is_dapdirect_jtag() || transport_is_dapdirect_swd())
return adapter_system_reset(0);
else if (get_current_transport() != NULL)
LOG_ERROR("reset is not supported on %s",

6
src/jtag/interface.h
View File

@@ -351,6 +351,12 @@ struct adapter_driver {
/** Low-level SWD APIs */
const struct swd_driver *swd_ops;
/* DAP APIs over JTAG transport */
const struct dap_ops *dap_jtag_ops;
/* DAP APIs over SWD transport */
const struct dap_ops *dap_swd_ops;
};
extern const char * const jtag_only[];