blob: f0f73e02b26fcedee585cb2022d9b93f0d640132 [file] [log] [blame]
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/*$FreeBSD$*/
#include <lib/device-protocol/pci.h>
#include <memory>
#include "e1000_api.h"
/*
* NOTE: the following routines using the e1000
* naming style are provided to the shared
* code but are OS specific
*/
struct e1000_pci {
std::unique_ptr<ddk::Pci> pci;
};
void e1000_write_pci_cfg(struct e1000_hw* hw, u32 reg, u16* value) {
ZX_DEBUG_ASSERT_COND(reg <= std::numeric_limits<uint16_t>::max());
hw2pci(hw)->pci->WriteConfig16(static_cast<uint16_t>(reg), *value);
}
void e1000_read_pci_cfg(struct e1000_hw* hw, u32 reg, u16* value) {
ZX_DEBUG_ASSERT_COND(reg <= std::numeric_limits<uint16_t>::max());
hw2pci(hw)->pci->ReadConfig16(static_cast<uint16_t>(reg), value);
}
void e1000_pci_set_mwi(struct e1000_hw* hw) {
hw2pci(hw)->pci->WriteConfig16(fidl::ToUnderlying(fuchsia_hardware_pci::Config::kCommand),
hw->bus.pci_cmd_word | CMD_MEM_WRT_INVALIDATE);
}
void e1000_pci_clear_mwi(struct e1000_hw* hw) {
hw2pci(hw)->pci->WriteConfig16(fidl::ToUnderlying(fuchsia_hardware_pci::Config::kCommand),
(hw->bus.pci_cmd_word & ~CMD_MEM_WRT_INVALIDATE));
}
/*
* Read the PCI Express capabilities
*/
int32_t e1000_read_pcie_cap_reg(struct e1000_hw* hw, u32 reg, u16* value) {
uint8_t offset;
zx_status_t st =
hw2pci(hw)->pci->GetFirstCapability(fuchsia_hardware_pci::CapabilityId::kPciExpress, &offset);
if (st != ZX_OK) {
return E1000_ERR_CONFIG;
}
ZX_DEBUG_ASSERT_COND(offset + reg <= std::numeric_limits<uint16_t>::max());
hw2pci(hw)->pci->ReadConfig16(static_cast<uint16_t>(offset + reg), value);
return E1000_SUCCESS;
}
/*
* Write the PCI Express capabilities
*/
int32_t e1000_write_pcie_cap_reg(struct e1000_hw* hw, u32 reg, u16* value) {
uint8_t offset;
zx_status_t st =
hw2pci(hw)->pci->GetFirstCapability(fuchsia_hardware_pci::CapabilityId::kPciExpress, &offset);
if (st != ZX_OK) {
return E1000_ERR_CONFIG;
}
ZX_DEBUG_ASSERT_COND(offset + reg <= std::numeric_limits<uint16_t>::max());
hw2pci(hw)->pci->WriteConfig16(static_cast<uint16_t>(offset + reg), *value);
return E1000_SUCCESS;
}
zx_status_t e1000_pci_set_bus_mastering(const struct e1000_pci* pci, bool enabled) {
if (!pci->pci->is_valid()) {
return ZX_ERR_NOT_CONNECTED;
}
return pci->pci->SetBusMastering(enabled);
}
zx_status_t e1000_pci_ack_interrupt(const struct e1000_pci* pci) {
return pci->pci->AckInterrupt();
}
zx_status_t e1000_pci_read_config16(const struct e1000_pci* pci, uint16_t offset,
uint16_t* out_value) {
return pci->pci->ReadConfig16(offset, out_value);
}
zx_status_t e1000_pci_get_device_info(const struct e1000_pci* pci, pci_device_info_t* out_info) {
fuchsia_hardware_pci::wire::DeviceInfo info;
zx_status_t status = pci->pci->GetDeviceInfo(&info);
if (status == ZX_OK) {
*out_info = ddk::convert_device_info_to_banjo(info);
}
return status;
}
zx_status_t e1000_pci_map_bar_buffer(const struct e1000_pci* pci, uint32_t bar_id,
uint32_t cache_policy, std::optional<fdf::MmioBuffer>* mmio) {
return pci->pci->MapMmio(bar_id, cache_policy, mmio);
}
zx_status_t e1000_pci_get_bar(const struct e1000_pci* pci, uint32_t bar_id, pci_bar_t* out_result) {
fuchsia_hardware_pci::wire::Bar bar;
fidl::Arena arena;
zx_status_t status = pci->pci->GetBar(arena, bar_id, &bar);
if (status == ZX_OK) {
*out_result = ddk::convert_bar_to_banjo(std::move(bar));
}
return status;
}
zx_status_t e1000_pci_get_bti(const struct e1000_pci* pci, uint32_t index, zx_handle_t* out_bti) {
zx::bti bti;
zx_status_t status = pci->pci->GetBti(index, &bti);
if (status == ZX_OK) {
*out_bti = bti.release();
}
return status;
}
zx_status_t e1000_pci_configure_interrupt_mode(const struct e1000_pci* pci,
uint32_t requested_irq_count,
pci_interrupt_mode_t* out_mode) {
fuchsia_hardware_pci::InterruptMode mode;
zx_status_t status = pci->pci->ConfigureInterruptMode(requested_irq_count, &mode);
if (status == ZX_OK) {
*out_mode = static_cast<pci_interrupt_mode_t>(mode);
}
return status;
}
zx_status_t e1000_pci_map_interrupt(const struct e1000_pci* pci, uint32_t which_irq,
zx_handle_t* out_interrupt) {
zx::interrupt interrupt;
zx_status_t status = pci->pci->MapInterrupt(which_irq, &interrupt);
if (status == ZX_OK) {
*out_interrupt = interrupt.release();
}
return status;
}
zx_status_t e1000_pci_create(fidl::ClientEnd<fuchsia_hardware_pci::Device> client_end,
struct e1000_pci** out_pci) {
std::unique_ptr pci = std::make_unique<e1000_pci>();
pci->pci = std::make_unique<ddk::Pci>(std::move(client_end));
if (!pci->pci->is_valid()) {
return ZX_ERR_CONNECTION_REFUSED;
}
*out_pci = pci.release();
return ZX_OK;
}
void e1000_pci_free(struct e1000_pci* pci) {
delete pci;
}
bool e1000_pci_is_valid(const struct e1000_pci* pci) { return pci->pci->is_valid(); }