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regtools/socdesc: update library with a field useful functions

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Change-Id: Ib2891fe36b0594e8554bb354a29bc8b3485de20d
Reviewed-on: http://gerrit.rockbox.org/1018
Reviewed-by: Amaury Pouly <amaury.pouly@gmail.com>
This commit is contained in:
Amaury Pouly 2014-10-22 17:51:09 +02:00
parent 7749c4d0e9
commit 6cb861137d
1 changed files with 23 additions and 1 deletions
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24
utils/regtools/lib/soc_desc.hpp
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@ -46,7 +46,7 @@
*/
#define SOCDESC_VERSION_MAJOR 1
#define SOCDESC_VERSION_MINOR 1
#define SOCDESC_VERSION_MINOR 4
#define SOCDESC_VERSION_REV 1
#define SOCDESC_VERSION__(maj,min,rev) #maj"."#min"."#rev
@ -103,6 +103,7 @@ struct soc_reg_field_t
soc_reg_field_t():first_bit(0), last_bit(31) {}
/** Return field bitmask in register */
soc_word_t bitmask() const
{
// WARNING beware of the case where first_bit=0 and last_bit=31
@ -112,11 +113,32 @@ struct soc_reg_field_t
return ((1 << (last_bit - first_bit + 1)) - 1) << first_bit;
}
/** Extract field value from register value */
soc_word_t extract(soc_word_t reg_val) const
{
return (reg_val & bitmask()) >> first_bit;
}
/** Replace the field value in a register value */
soc_word_t replace(soc_word_t reg_val, soc_word_t field_val) const
{
return (reg_val & ~bitmask()) | ((field_val << first_bit) & bitmask());
}
bool is_reserved() const
{
return name.substr(0, 4) == "RSVD" || name.substr(0, 5) == "RSRVD";
}
/** Return field value index, or -1 if none */
int find_value(soc_word_t v) const
{
for(size_t i = 0; i < value.size(); i++)
if(value[i].value == v)
return i;
return -1;
}
std::vector< soc_reg_field_value_t > value;
std::vector< soc_error_t > errors(bool recursive);