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Add types for tagged data chunks in SPI flash.

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This commit is contained in:
Jared Boone 2016-07-01 10:32:52 -07:00
parent f683980052
commit 0e62876578
1 changed files with 52 additions and 0 deletions
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52
firmware/common/spi_image.hpp
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@ -30,6 +30,58 @@
namespace portapack {
namespace spi_flash {
struct image_tag_t {
constexpr image_tag_t(
) : c { 0, 0, 0, 0 }
{
}
constexpr image_tag_t(
char c0, char c1, char c2, char c3
) : c { c0, c1, c2, c3 }
{
}
image_tag_t& operator=(const image_tag_t& other) {
c[0] = other.c[0];
c[1] = other.c[1];
c[2] = other.c[2];
c[3] = other.c[3];
return *this;
}
bool operator==(const image_tag_t& other) const {
return (c[0] == other.c[0]) && (c[1] == other.c[1]) && (c[2] == other.c[2]) && (c[3] == other.c[3]);
}
operator bool() const {
return (c[0] != 0) || (c[1] != 0) || (c[2] != 0) || (c[3] != 0);
}
private:
char c[4];
};
constexpr image_tag_t image_tag_ais { 'P', 'A', 'I', 'S' };
constexpr image_tag_t image_tag_am_audio { 'P', 'A', 'M', 'A' };
constexpr image_tag_t image_tag_capture { 'P', 'C', 'A', 'P' };
constexpr image_tag_t image_tag_ert { 'P', 'E', 'R', 'T' };
constexpr image_tag_t image_tag_nfm_audio { 'P', 'N', 'F', 'M' };
constexpr image_tag_t image_tag_tpms { 'P', 'T', 'P', 'M' };
constexpr image_tag_t image_tag_wfm_audio { 'P', 'W', 'F', 'M' };
constexpr image_tag_t image_tag_wideband_spectrum { 'P', 'S', 'P', 'E' };
constexpr image_tag_t image_tag_hackrf { 'H', 'R', 'F', '1' };
struct chunk_t {
const image_tag_t tag;
const uint32_t length;
const uint8_t data[];
const chunk_t* next() const {
return reinterpret_cast<const chunk_t*>(&data[length]);
}
};
struct region_t {
const size_t offset;
const size_t size;