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wrench: 更新Makefile
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fslongjin
@ -26,17 +26,6 @@ static void pci_checkBus(uint8_t bus);
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} \
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} while (0)
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/**
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* @brief 生成架构相关的msi的message address
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*
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*/
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#define pci_get_arch_msi_message_address(processor) ((uint64_t)(0xfee00000UL | (processor << 12)))
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/**
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* @brief 生成架构相关的message data
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*
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*/
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#define pci_get_arch_msi_message_data(vector, processor, edge_trigger, assert) ((uint32_t)((vector & 0xff) | (edge_trigger == 1 ? 0 : (1 << 15)) | ((assert == 0) ? 0 : (1 << 14))))
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/**
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* @brief 从pci配置空间读取信息
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@ -479,219 +468,6 @@ void pci_init()
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kinfo("PCI bus initialized.")
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}
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/**
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* @brief 启用 Message Signaled Interrupts
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*
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* @param header 设备header
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* @param vector 中断向量号
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* @param processor 要投递到的处理器
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* @param edge_trigger 是否边缘触发
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* @param assert 是否高电平触发
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*
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* @return 返回码
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*/
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int pci_enable_msi(void *header, uint8_t vector, uint32_t processor, uint8_t edge_trigger, uint8_t assert)
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{
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struct pci_device_structure_header_t *ptr = (struct pci_device_structure_header_t *)header;
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uint32_t cap_ptr;
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uint32_t tmp;
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uint16_t message_control;
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uint64_t message_addr;
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switch (ptr->HeaderType)
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{
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case 0x00: // general device
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if (!(ptr->Status & 0x10))
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return E_NOT_SUPPORT_MSI;
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cap_ptr = ((struct pci_device_structure_general_device_t *)ptr)->Capabilities_Pointer;
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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message_control = (tmp >> 16) & 0xffff;
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if (tmp & 0xff != 0x5)
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return E_NOT_SUPPORT_MSI;
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// 写入message address
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message_addr = pci_get_arch_msi_message_address(processor); // 获取message address
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0x4, (uint32_t)(message_addr & 0xffffffff));
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if (message_control & (1 << 7)) // 64位
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0x8, (uint32_t)((message_addr >> 32) & 0xffffffff));
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// 写入message data
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tmp = pci_get_arch_msi_message_data(vector, processor, edge_trigger, assert);
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if (message_control & (1 << 7)) // 64位
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0xc, tmp);
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else
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0x8, tmp);
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// 使能msi
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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tmp |= (1 << 16);
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr, tmp);
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break;
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case 0x01: // pci to pci bridge
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if (!(ptr->Status & 0x10))
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return E_NOT_SUPPORT_MSI;
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cap_ptr = ((struct pci_device_structure_pci_to_pci_bridge_t *)ptr)->Capability_Pointer;
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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message_control = (tmp >> 16) & 0xffff;
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if (tmp & 0xff != 0x5)
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return E_NOT_SUPPORT_MSI;
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// 写入message address
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message_addr = pci_get_arch_msi_message_address(processor); // 获取message address
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0x4, (uint32_t)(message_addr & 0xffffffff));
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if (message_control & (1 << 7)) // 64位
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0x8, (uint32_t)((message_addr >> 32) & 0xffffffff));
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// 写入message data
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tmp = pci_get_arch_msi_message_data(vector, processor, edge_trigger, assert);
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if (message_control & (1 << 7)) // 64位
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0xc, tmp);
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else
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr + 0x8, tmp);
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// 使能msi
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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tmp |= (1 << 16);
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr, tmp);
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break;
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case 0x02: // pci to card bus bridge
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return E_NOT_SUPPORT_MSI;
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break;
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default: // 不应该到达这里
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return E_WRONG_HEADER_TYPE;
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break;
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}
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return 0;
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}
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/**
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* @brief 在已配置好msi寄存器的设备上，使能msi
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*
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* @param header 设备头部
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* @return int 返回码
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*/
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int pci_start_msi(void *header)
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{
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struct pci_device_structure_header_t *ptr = (struct pci_device_structure_header_t *)header;
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uint32_t cap_ptr;
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uint32_t tmp;
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switch (ptr->HeaderType)
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{
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case 0x00: // general device
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if (!(ptr->Status & 0x10))
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return E_NOT_SUPPORT_MSI;
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cap_ptr = ((struct pci_device_structure_general_device_t *)ptr)->Capabilities_Pointer;
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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if (tmp & 0xff != 0x5)
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return E_NOT_SUPPORT_MSI;
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// 使能msi
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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tmp |= (1 << 16);
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr, tmp);
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break;
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case 0x01: // pci to pci bridge
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if (!(ptr->Status & 0x10))
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return E_NOT_SUPPORT_MSI;
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cap_ptr = ((struct pci_device_structure_pci_to_pci_bridge_t *)ptr)->Capability_Pointer;
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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if (tmp & 0xff != 0x5)
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return E_NOT_SUPPORT_MSI;
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//使能msi
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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tmp |= (1 << 16);
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr, tmp);
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break;
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case 0x02: // pci to card bus bridge
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return E_NOT_SUPPORT_MSI;
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break;
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default: // 不应该到达这里
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return E_WRONG_HEADER_TYPE;
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break;
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}
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return 0;
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}
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/**
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* @brief 禁用指定设备的msi
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*
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* @param header pci header
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* @return int
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*/
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int pci_disable_msi(void *header)
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{
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struct pci_device_structure_header_t *ptr = (struct pci_device_structure_header_t *)header;
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uint32_t cap_ptr;
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uint32_t tmp;
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switch (ptr->HeaderType)
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{
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case 0x00: // general device
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if (!(ptr->Status & 0x10))
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return E_NOT_SUPPORT_MSI;
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cap_ptr = ((struct pci_device_structure_general_device_t *)ptr)->Capabilities_Pointer;
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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if (tmp & 0xff != 0x5)
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return E_NOT_SUPPORT_MSI;
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// 禁用msi
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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tmp &= (~(1 << 16));
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr, tmp);
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break;
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case 0x01: // pci to pci bridge
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if (!(ptr->Status & 0x10))
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return E_NOT_SUPPORT_MSI;
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cap_ptr = ((struct pci_device_structure_pci_to_pci_bridge_t *)ptr)->Capability_Pointer;
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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if (tmp & 0xff != 0x5)
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return E_NOT_SUPPORT_MSI;
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//禁用msi
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tmp = pci_read_config(ptr->bus, ptr->device, ptr->func, cap_ptr); // 读取cap+0x0处的值
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tmp &= (~(1 << 16));
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pci_write_config(ptr->bus, ptr->device, ptr->func, cap_ptr, tmp);
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break;
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case 0x02: // pci to card bus bridge
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return E_NOT_SUPPORT_MSI;
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break;
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default: // 不应该到达这里
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return E_WRONG_HEADER_TYPE;
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break;
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}
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return 0;
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}
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/**
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* @brief 获取 device structure
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