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Re-add CFL setting that was lost

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This commit is contained in:
Justin C. Miller
2018-05-20 16:34:15 -07:00
parent 193d9939f0
commit 1e66e5cd82
1 changed files with 12 additions and 3 deletions
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15
src/kernel/ahci/port.cpp
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@@ -10,7 +10,12 @@
#include "log.h"
#include "page_manager.h"
namespace ahci {
enum class cmd_list_flags : uint16_t;
}
IS_BITFIELD(ahci::port_cmd);
IS_BITFIELD(ahci::cmd_list_flags);
namespace ahci {
@@ -231,6 +236,13 @@ port::make_command(size_t length)
kutil::memset(&cmdt, 0, sizeof(cmd_table) +
max_prd_count * sizeof(prdt_entry));
ent.flags = cmd_list_fis_size(sizeof(fis_register_h2d));
fis_register_h2d *fis = reinterpret_cast<fis_register_h2d *>(&cmdt.cmd_fis);
kutil::memset(fis, 0, sizeof(fis_register_h2d));
fis->type = fis_type::register_h2d;
fis->pm_port = 0x80; // set command register flag
size_t remaining = length;
for (int i = 0; i < max_prd_count; ++i) {
size_t prd_len = std::min(remaining, 0x200000ul);
@@ -267,9 +279,6 @@ port::read_async(uint64_t offset, size_t length, void *dest)
cmd_table &cmdt = m_cmd_table[slot];
fis_register_h2d *fis = reinterpret_cast<fis_register_h2d *>(&cmdt.cmd_fis);
kutil::memset(fis, 0, sizeof(fis_register_h2d));
fis->type = fis_type::register_h2d;
fis->pm_port = 0x80; // set command register flag
fis->command = ata_cmd::read_dma_ext;
fis->device = 0x40; // ATA8-ACS p.175