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| author | Lee Leahy <leroy.p.leahy@intel.com> | 2016-04-29 15:07:19 -0700 |
|---|---|---|
| committer | Leroy P Leahy <leroy.p.leahy@intel.com> | 2016-05-04 19:21:40 +0200 |
| commit | 564dc9c7c89a94ff1b7803ef9937ca4f0dd95809 (patch) | |
| tree | 93b3d344c243d8a0c48bdd8f7b23d0e8a45cfdc5 /src/include | |
| parent | d3fccfbc41988b110d6861f53ee3b8908e90e422 (diff) | |
lib/reg_script: Add display support
Add the ability to enable the display of the script:
* Added REG_SCRIPT_COMMAND_DISPLAY to enable and disable display output
* Added context values to manage display support
* display_state - Updated by the command to enable or disable display
* display_features - May be updated by step routine to control what
the step displays for register and value
* display_prefix - Prefix to display before register data
* Added REG_SCRIPT_DISPLAY_ON and REG_SCRIPT_DISPLAY_OFF macros to
control the display from the register script
* Added REG_SCRIPT_DISPLAY_REGISTER and REG_SCRIPT_DISPLAY_VALUE as
two features of the common display. With these features enabled
the following is output:
* Write: <optional prefix> register <-- value
* Read: <optional prefix> register --> value
TEST=Build and run on Galileo Gen2
Change-Id: If0d4d61ed8ef48ec20082b327f358fd1987e3fb9
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/14553
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/reg_script.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/include/reg_script.h b/src/include/reg_script.h index da01481c3f..d7ed326af3 100644 --- a/src/include/reg_script.h +++ b/src/include/reg_script.h @@ -47,6 +47,10 @@ enum { REG_SCRIPT_COMMAND_POLL, REG_SCRIPT_COMMAND_SET_DEV, REG_SCRIPT_COMMAND_NEXT, + REG_SCRIPT_COMMAND_DISPLAY, + + /* Insert new types above this comment */ + REG_SCRIPT_COMMAND_END, }; @@ -92,6 +96,9 @@ struct reg_script_context { device_t dev; struct resource *res; const struct reg_script *step; + uint8_t display_state; /* Only modified by reg_script_run_step */ + uint8_t display_features; /* Step routine modifies to control display */ + const char *display_prefix; /* Prefix tag to display */ }; struct reg_script_bus_entry { @@ -132,6 +139,21 @@ struct reg_script_bus_entry { .res_index = res_index_, \ } +/* Display control */ +#define REG_SCRIPT_DISPLAY_ALL 0xff +#define REG_SCRIPT_DISPLAY_REGISTER 0x02 +#define REG_SCRIPT_DISPLAY_VALUE 0x01 +#define REG_SCRIPT_DISPLAY_NOTHING 0 + +#define REG_SCRIPT_DISPLAY_OFF \ + { .command = REG_SCRIPT_COMMAND_DISPLAY, \ + .value = REG_SCRIPT_DISPLAY_NOTHING, \ + } +#define REG_SCRIPT_DISPLAY_ON \ + { .command = REG_SCRIPT_COMMAND_DISPLAY, \ + .value = REG_SCRIPT_DISPLAY_ALL, \ + } + /* * PCI */ |