| /* Copyright (c) 2014 Broadcom Corporation |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/firmware.h> |
| #include <linux/pci.h> |
| #include <linux/vmalloc.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/bcma/bcma.h> |
| #include <linux/sched.h> |
| #include <asm/unaligned.h> |
| |
| #include <soc.h> |
| #include <chipcommon.h> |
| #include <brcmu_utils.h> |
| #include <brcmu_wifi.h> |
| #include <brcm_hw_ids.h> |
| |
| #include "debug.h" |
| #include "bus.h" |
| #include "commonring.h" |
| #include "msgbuf.h" |
| #include "pcie.h" |
| #include "firmware.h" |
| #include "chip.h" |
| |
| |
| enum brcmf_pcie_state { |
| BRCMFMAC_PCIE_STATE_DOWN, |
| BRCMFMAC_PCIE_STATE_UP |
| }; |
| |
| |
| #define BRCMF_PCIE_43602_FW_NAME "brcm/brcmfmac43602-pcie.bin" |
| #define BRCMF_PCIE_43602_NVRAM_NAME "brcm/brcmfmac43602-pcie.txt" |
| #define BRCMF_PCIE_4354_FW_NAME "brcm/brcmfmac4354-pcie.bin" |
| #define BRCMF_PCIE_4354_NVRAM_NAME "brcm/brcmfmac4354-pcie.txt" |
| #define BRCMF_PCIE_4356_FW_NAME "brcm/brcmfmac4356-pcie.bin" |
| #define BRCMF_PCIE_4356_NVRAM_NAME "brcm/brcmfmac4356-pcie.txt" |
| #define BRCMF_PCIE_43570_FW_NAME "brcm/brcmfmac43570-pcie.bin" |
| #define BRCMF_PCIE_43570_NVRAM_NAME "brcm/brcmfmac43570-pcie.txt" |
| |
| #define BRCMF_PCIE_FW_UP_TIMEOUT 2000 /* msec */ |
| |
| #define BRCMF_PCIE_TCM_MAP_SIZE (4096 * 1024) |
| #define BRCMF_PCIE_REG_MAP_SIZE (32 * 1024) |
| |
| /* backplane addres space accessed by BAR0 */ |
| #define BRCMF_PCIE_BAR0_WINDOW 0x80 |
| #define BRCMF_PCIE_BAR0_REG_SIZE 0x1000 |
| #define BRCMF_PCIE_BAR0_WRAPPERBASE 0x70 |
| |
| #define BRCMF_PCIE_BAR0_WRAPBASE_DMP_OFFSET 0x1000 |
| #define BRCMF_PCIE_BARO_PCIE_ENUM_OFFSET 0x2000 |
| |
| #define BRCMF_PCIE_ARMCR4REG_BANKIDX 0x40 |
| #define BRCMF_PCIE_ARMCR4REG_BANKPDA 0x4C |
| |
| #define BRCMF_PCIE_REG_INTSTATUS 0x90 |
| #define BRCMF_PCIE_REG_INTMASK 0x94 |
| #define BRCMF_PCIE_REG_SBMBX 0x98 |
| |
| #define BRCMF_PCIE_PCIE2REG_INTMASK 0x24 |
| #define BRCMF_PCIE_PCIE2REG_MAILBOXINT 0x48 |
| #define BRCMF_PCIE_PCIE2REG_MAILBOXMASK 0x4C |
| #define BRCMF_PCIE_PCIE2REG_CONFIGADDR 0x120 |
| #define BRCMF_PCIE_PCIE2REG_CONFIGDATA 0x124 |
| #define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX 0x140 |
| |
| #define BRCMF_PCIE_GENREV1 1 |
| #define BRCMF_PCIE_GENREV2 2 |
| |
| #define BRCMF_PCIE2_INTA 0x01 |
| #define BRCMF_PCIE2_INTB 0x02 |
| |
| #define BRCMF_PCIE_INT_0 0x01 |
| #define BRCMF_PCIE_INT_1 0x02 |
| #define BRCMF_PCIE_INT_DEF (BRCMF_PCIE_INT_0 | \ |
| BRCMF_PCIE_INT_1) |
| |
| #define BRCMF_PCIE_MB_INT_FN0_0 0x0100 |
| #define BRCMF_PCIE_MB_INT_FN0_1 0x0200 |
| #define BRCMF_PCIE_MB_INT_D2H0_DB0 0x10000 |
| #define BRCMF_PCIE_MB_INT_D2H0_DB1 0x20000 |
| #define BRCMF_PCIE_MB_INT_D2H1_DB0 0x40000 |
| #define BRCMF_PCIE_MB_INT_D2H1_DB1 0x80000 |
| #define BRCMF_PCIE_MB_INT_D2H2_DB0 0x100000 |
| #define BRCMF_PCIE_MB_INT_D2H2_DB1 0x200000 |
| #define BRCMF_PCIE_MB_INT_D2H3_DB0 0x400000 |
| #define BRCMF_PCIE_MB_INT_D2H3_DB1 0x800000 |
| |
| #define BRCMF_PCIE_MB_INT_D2H_DB (BRCMF_PCIE_MB_INT_D2H0_DB0 | \ |
| BRCMF_PCIE_MB_INT_D2H0_DB1 | \ |
| BRCMF_PCIE_MB_INT_D2H1_DB0 | \ |
| BRCMF_PCIE_MB_INT_D2H1_DB1 | \ |
| BRCMF_PCIE_MB_INT_D2H2_DB0 | \ |
| BRCMF_PCIE_MB_INT_D2H2_DB1 | \ |
| BRCMF_PCIE_MB_INT_D2H3_DB0 | \ |
| BRCMF_PCIE_MB_INT_D2H3_DB1) |
| |
| #define BRCMF_PCIE_MIN_SHARED_VERSION 4 |
| #define BRCMF_PCIE_MAX_SHARED_VERSION 5 |
| #define BRCMF_PCIE_SHARED_VERSION_MASK 0x00FF |
| #define BRCMF_PCIE_SHARED_TXPUSH_SUPPORT 0x4000 |
| |
| #define BRCMF_PCIE_FLAGS_HTOD_SPLIT 0x4000 |
| #define BRCMF_PCIE_FLAGS_DTOH_SPLIT 0x8000 |
| |
| #define BRCMF_SHARED_MAX_RXBUFPOST_OFFSET 34 |
| #define BRCMF_SHARED_RING_BASE_OFFSET 52 |
| #define BRCMF_SHARED_RX_DATAOFFSET_OFFSET 36 |
| #define BRCMF_SHARED_CONSOLE_ADDR_OFFSET 20 |
| #define BRCMF_SHARED_HTOD_MB_DATA_ADDR_OFFSET 40 |
| #define BRCMF_SHARED_DTOH_MB_DATA_ADDR_OFFSET 44 |
| #define BRCMF_SHARED_RING_INFO_ADDR_OFFSET 48 |
| #define BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET 52 |
| #define BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET 56 |
| #define BRCMF_SHARED_DMA_RINGUPD_LEN_OFFSET 64 |
| #define BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET 68 |
| |
| #define BRCMF_RING_H2D_RING_COUNT_OFFSET 0 |
| #define BRCMF_RING_D2H_RING_COUNT_OFFSET 1 |
| #define BRCMF_RING_H2D_RING_MEM_OFFSET 4 |
| #define BRCMF_RING_H2D_RING_STATE_OFFSET 8 |
| |
| #define BRCMF_RING_MEM_BASE_ADDR_OFFSET 8 |
| #define BRCMF_RING_MAX_ITEM_OFFSET 4 |
| #define BRCMF_RING_LEN_ITEMS_OFFSET 6 |
| #define BRCMF_RING_MEM_SZ 16 |
| #define BRCMF_RING_STATE_SZ 8 |
| |
| #define BRCMF_SHARED_RING_H2D_W_IDX_PTR_OFFSET 4 |
| #define BRCMF_SHARED_RING_H2D_R_IDX_PTR_OFFSET 8 |
| #define BRCMF_SHARED_RING_D2H_W_IDX_PTR_OFFSET 12 |
| #define BRCMF_SHARED_RING_D2H_R_IDX_PTR_OFFSET 16 |
| #define BRCMF_SHARED_RING_TCM_MEMLOC_OFFSET 0 |
| #define BRCMF_SHARED_RING_MAX_SUB_QUEUES 52 |
| |
| #define BRCMF_DEF_MAX_RXBUFPOST 255 |
| |
| #define BRCMF_CONSOLE_BUFADDR_OFFSET 8 |
| #define BRCMF_CONSOLE_BUFSIZE_OFFSET 12 |
| #define BRCMF_CONSOLE_WRITEIDX_OFFSET 16 |
| |
| #define BRCMF_DMA_D2H_SCRATCH_BUF_LEN 8 |
| #define BRCMF_DMA_D2H_RINGUPD_BUF_LEN 1024 |
| |
| #define BRCMF_D2H_DEV_D3_ACK 0x00000001 |
| #define BRCMF_D2H_DEV_DS_ENTER_REQ 0x00000002 |
| #define BRCMF_D2H_DEV_DS_EXIT_NOTE 0x00000004 |
| |
| #define BRCMF_H2D_HOST_D3_INFORM 0x00000001 |
| #define BRCMF_H2D_HOST_DS_ACK 0x00000002 |
| #define BRCMF_H2D_HOST_D0_INFORM_IN_USE 0x00000008 |
| #define BRCMF_H2D_HOST_D0_INFORM 0x00000010 |
| |
| #define BRCMF_PCIE_MBDATA_TIMEOUT 2000 |
| |
| #define BRCMF_PCIE_CFGREG_STATUS_CMD 0x4 |
| #define BRCMF_PCIE_CFGREG_PM_CSR 0x4C |
| #define BRCMF_PCIE_CFGREG_MSI_CAP 0x58 |
| #define BRCMF_PCIE_CFGREG_MSI_ADDR_L 0x5C |
| #define BRCMF_PCIE_CFGREG_MSI_ADDR_H 0x60 |
| #define BRCMF_PCIE_CFGREG_MSI_DATA 0x64 |
| #define BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL 0xBC |
| #define BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL2 0xDC |
| #define BRCMF_PCIE_CFGREG_RBAR_CTRL 0x228 |
| #define BRCMF_PCIE_CFGREG_PML1_SUB_CTRL1 0x248 |
| #define BRCMF_PCIE_CFGREG_REG_BAR2_CONFIG 0x4E0 |
| #define BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG 0x4F4 |
| #define BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB 3 |
| |
| |
| MODULE_FIRMWARE(BRCMF_PCIE_43602_FW_NAME); |
| MODULE_FIRMWARE(BRCMF_PCIE_43602_NVRAM_NAME); |
| MODULE_FIRMWARE(BRCMF_PCIE_4354_FW_NAME); |
| MODULE_FIRMWARE(BRCMF_PCIE_4354_NVRAM_NAME); |
| MODULE_FIRMWARE(BRCMF_PCIE_43570_FW_NAME); |
| MODULE_FIRMWARE(BRCMF_PCIE_43570_NVRAM_NAME); |
| |
| |
| struct brcmf_pcie_console { |
| u32 base_addr; |
| u32 buf_addr; |
| u32 bufsize; |
| u32 read_idx; |
| u8 log_str[256]; |
| u8 log_idx; |
| }; |
| |
| struct brcmf_pcie_shared_info { |
| u32 tcm_base_address; |
| u32 flags; |
| struct brcmf_pcie_ringbuf *commonrings[BRCMF_NROF_COMMON_MSGRINGS]; |
| struct brcmf_pcie_ringbuf *flowrings; |
| u16 max_rxbufpost; |
| u32 nrof_flowrings; |
| u32 rx_dataoffset; |
| u32 htod_mb_data_addr; |
| u32 dtoh_mb_data_addr; |
| u32 ring_info_addr; |
| struct brcmf_pcie_console console; |
| void *scratch; |
| dma_addr_t scratch_dmahandle; |
| void *ringupd; |
| dma_addr_t ringupd_dmahandle; |
| }; |
| |
| struct brcmf_pcie_core_info { |
| u32 base; |
| u32 wrapbase; |
| }; |
| |
| struct brcmf_pciedev_info { |
| enum brcmf_pcie_state state; |
| bool in_irq; |
| bool irq_requested; |
| struct pci_dev *pdev; |
| char fw_name[BRCMF_FW_PATH_LEN + BRCMF_FW_NAME_LEN]; |
| char nvram_name[BRCMF_FW_PATH_LEN + BRCMF_FW_NAME_LEN]; |
| void __iomem *regs; |
| void __iomem *tcm; |
| u32 tcm_size; |
| u32 ram_base; |
| u32 ram_size; |
| struct brcmf_chip *ci; |
| u32 coreid; |
| u32 generic_corerev; |
| struct brcmf_pcie_shared_info shared; |
| void (*ringbell)(struct brcmf_pciedev_info *devinfo); |
| wait_queue_head_t mbdata_resp_wait; |
| bool mbdata_completed; |
| bool irq_allocated; |
| bool wowl_enabled; |
| }; |
| |
| struct brcmf_pcie_ringbuf { |
| struct brcmf_commonring commonring; |
| dma_addr_t dma_handle; |
| u32 w_idx_addr; |
| u32 r_idx_addr; |
| struct brcmf_pciedev_info *devinfo; |
| u8 id; |
| }; |
| |
| |
| static const u32 brcmf_ring_max_item[BRCMF_NROF_COMMON_MSGRINGS] = { |
| BRCMF_H2D_MSGRING_CONTROL_SUBMIT_MAX_ITEM, |
| BRCMF_H2D_MSGRING_RXPOST_SUBMIT_MAX_ITEM, |
| BRCMF_D2H_MSGRING_CONTROL_COMPLETE_MAX_ITEM, |
| BRCMF_D2H_MSGRING_TX_COMPLETE_MAX_ITEM, |
| BRCMF_D2H_MSGRING_RX_COMPLETE_MAX_ITEM |
| }; |
| |
| static const u32 brcmf_ring_itemsize[BRCMF_NROF_COMMON_MSGRINGS] = { |
| BRCMF_H2D_MSGRING_CONTROL_SUBMIT_ITEMSIZE, |
| BRCMF_H2D_MSGRING_RXPOST_SUBMIT_ITEMSIZE, |
| BRCMF_D2H_MSGRING_CONTROL_COMPLETE_ITEMSIZE, |
| BRCMF_D2H_MSGRING_TX_COMPLETE_ITEMSIZE, |
| BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE |
| }; |
| |
| |
| /* dma flushing needs implementation for mips and arm platforms. Should |
| * be put in util. Note, this is not real flushing. It is virtual non |
| * cached memory. Only write buffers should have to be drained. Though |
| * this may be different depending on platform...... |
| */ |
| #define brcmf_dma_flush(addr, len) |
| #define brcmf_dma_invalidate_cache(addr, len) |
| |
| |
| static u32 |
| brcmf_pcie_read_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset) |
| { |
| void __iomem *address = devinfo->regs + reg_offset; |
| |
| return (ioread32(address)); |
| } |
| |
| |
| static void |
| brcmf_pcie_write_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset, |
| u32 value) |
| { |
| void __iomem *address = devinfo->regs + reg_offset; |
| |
| iowrite32(value, address); |
| } |
| |
| |
| static u8 |
| brcmf_pcie_read_tcm8(struct brcmf_pciedev_info *devinfo, u32 mem_offset) |
| { |
| void __iomem *address = devinfo->tcm + mem_offset; |
| |
| return (ioread8(address)); |
| } |
| |
| |
| static u16 |
| brcmf_pcie_read_tcm16(struct brcmf_pciedev_info *devinfo, u32 mem_offset) |
| { |
| void __iomem *address = devinfo->tcm + mem_offset; |
| |
| return (ioread16(address)); |
| } |
| |
| |
| static void |
| brcmf_pcie_write_tcm16(struct brcmf_pciedev_info *devinfo, u32 mem_offset, |
| u16 value) |
| { |
| void __iomem *address = devinfo->tcm + mem_offset; |
| |
| iowrite16(value, address); |
| } |
| |
| |
| static u32 |
| brcmf_pcie_read_tcm32(struct brcmf_pciedev_info *devinfo, u32 mem_offset) |
| { |
| void __iomem *address = devinfo->tcm + mem_offset; |
| |
| return (ioread32(address)); |
| } |
| |
| |
| static void |
| brcmf_pcie_write_tcm32(struct brcmf_pciedev_info *devinfo, u32 mem_offset, |
| u32 value) |
| { |
| void __iomem *address = devinfo->tcm + mem_offset; |
| |
| iowrite32(value, address); |
| } |
| |
| |
| static u32 |
| brcmf_pcie_read_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset) |
| { |
| void __iomem *addr = devinfo->tcm + devinfo->ci->rambase + mem_offset; |
| |
| return (ioread32(addr)); |
| } |
| |
| |
| static void |
| brcmf_pcie_write_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset, |
| u32 value) |
| { |
| void __iomem *addr = devinfo->tcm + devinfo->ci->rambase + mem_offset; |
| |
| iowrite32(value, addr); |
| } |
| |
| |
| static void |
| brcmf_pcie_copy_mem_todev(struct brcmf_pciedev_info *devinfo, u32 mem_offset, |
| void *srcaddr, u32 len) |
| { |
| void __iomem *address = devinfo->tcm + mem_offset; |
| __le32 *src32; |
| __le16 *src16; |
| u8 *src8; |
| |
| if (((ulong)address & 4) || ((ulong)srcaddr & 4) || (len & 4)) { |
| if (((ulong)address & 2) || ((ulong)srcaddr & 2) || (len & 2)) { |
| src8 = (u8 *)srcaddr; |
| while (len) { |
| iowrite8(*src8, address); |
| address++; |
| src8++; |
| len--; |
| } |
| } else { |
| len = len / 2; |
| src16 = (__le16 *)srcaddr; |
| while (len) { |
| iowrite16(le16_to_cpu(*src16), address); |
| address += 2; |
| src16++; |
| len--; |
| } |
| } |
| } else { |
| len = len / 4; |
| src32 = (__le32 *)srcaddr; |
| while (len) { |
| iowrite32(le32_to_cpu(*src32), address); |
| address += 4; |
| src32++; |
| len--; |
| } |
| } |
| } |
| |
| |
| #define WRITECC32(devinfo, reg, value) brcmf_pcie_write_reg32(devinfo, \ |
| CHIPCREGOFFS(reg), value) |
| |
| |
| static void |
| brcmf_pcie_select_core(struct brcmf_pciedev_info *devinfo, u16 coreid) |
| { |
| const struct pci_dev *pdev = devinfo->pdev; |
| struct brcmf_core *core; |
| u32 bar0_win; |
| |
| core = brcmf_chip_get_core(devinfo->ci, coreid); |
| if (core) { |
| bar0_win = core->base; |
| pci_write_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, bar0_win); |
| if (pci_read_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, |
| &bar0_win) == 0) { |
| if (bar0_win != core->base) { |
| bar0_win = core->base; |
| pci_write_config_dword(pdev, |
| BRCMF_PCIE_BAR0_WINDOW, |
| bar0_win); |
| } |
| } |
| } else { |
| brcmf_err("Unsupported core selected %x\n", coreid); |
| } |
| } |
| |
| |
| static void brcmf_pcie_reset_device(struct brcmf_pciedev_info *devinfo) |
| { |
| u16 cfg_offset[] = { BRCMF_PCIE_CFGREG_STATUS_CMD, |
| BRCMF_PCIE_CFGREG_PM_CSR, |
| BRCMF_PCIE_CFGREG_MSI_CAP, |
| BRCMF_PCIE_CFGREG_MSI_ADDR_L, |
| BRCMF_PCIE_CFGREG_MSI_ADDR_H, |
| BRCMF_PCIE_CFGREG_MSI_DATA, |
| BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL2, |
| BRCMF_PCIE_CFGREG_RBAR_CTRL, |
| BRCMF_PCIE_CFGREG_PML1_SUB_CTRL1, |
| BRCMF_PCIE_CFGREG_REG_BAR2_CONFIG, |
| BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG }; |
| u32 i; |
| u32 val; |
| u32 lsc; |
| |
| if (!devinfo->ci) |
| return; |
| |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGADDR, |
| BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL); |
| lsc = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA); |
| val = lsc & (~BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA, val); |
| |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_CHIPCOMMON); |
| WRITECC32(devinfo, watchdog, 4); |
| msleep(100); |
| |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGADDR, |
| BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA, lsc); |
| |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| for (i = 0; i < ARRAY_SIZE(cfg_offset); i++) { |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGADDR, |
| cfg_offset[i]); |
| val = brcmf_pcie_read_reg32(devinfo, |
| BRCMF_PCIE_PCIE2REG_CONFIGDATA); |
| brcmf_dbg(PCIE, "config offset 0x%04x, value 0x%04x\n", |
| cfg_offset[i], val); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA, |
| val); |
| } |
| } |
| |
| |
| static void brcmf_pcie_attach(struct brcmf_pciedev_info *devinfo) |
| { |
| u32 config; |
| |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_INTMASK) != 0) |
| brcmf_pcie_reset_device(devinfo); |
| /* BAR1 window may not be sized properly */ |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGADDR, 0x4e0); |
| config = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA, config); |
| |
| device_wakeup_enable(&devinfo->pdev->dev); |
| } |
| |
| |
| static int brcmf_pcie_enter_download_state(struct brcmf_pciedev_info *devinfo) |
| { |
| brcmf_chip_enter_download(devinfo->ci); |
| |
| if (devinfo->ci->chip == BRCM_CC_43602_CHIP_ID) { |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_ARM_CR4); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKIDX, |
| 5); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKPDA, |
| 0); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKIDX, |
| 7); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKPDA, |
| 0); |
| } |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_exit_download_state(struct brcmf_pciedev_info *devinfo, |
| u32 resetintr) |
| { |
| struct brcmf_core *core; |
| |
| if (devinfo->ci->chip == BRCM_CC_43602_CHIP_ID) { |
| core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_INTERNAL_MEM); |
| brcmf_chip_resetcore(core, 0, 0, 0); |
| } |
| |
| return !brcmf_chip_exit_download(devinfo->ci, resetintr); |
| } |
| |
| |
| static int |
| brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data) |
| { |
| struct brcmf_pcie_shared_info *shared; |
| u32 addr; |
| u32 cur_htod_mb_data; |
| u32 i; |
| |
| shared = &devinfo->shared; |
| addr = shared->htod_mb_data_addr; |
| cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| if (cur_htod_mb_data != 0) |
| brcmf_dbg(PCIE, "MB transaction is already pending 0x%04x\n", |
| cur_htod_mb_data); |
| |
| i = 0; |
| while (cur_htod_mb_data != 0) { |
| msleep(10); |
| i++; |
| if (i > 100) |
| return -EIO; |
| cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr); |
| } |
| |
| brcmf_pcie_write_tcm32(devinfo, addr, htod_mb_data); |
| pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); |
| pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); |
| |
| return 0; |
| } |
| |
| |
| static void brcmf_pcie_handle_mb_data(struct brcmf_pciedev_info *devinfo) |
| { |
| struct brcmf_pcie_shared_info *shared; |
| u32 addr; |
| u32 dtoh_mb_data; |
| |
| shared = &devinfo->shared; |
| addr = shared->dtoh_mb_data_addr; |
| dtoh_mb_data = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| if (!dtoh_mb_data) |
| return; |
| |
| brcmf_pcie_write_tcm32(devinfo, addr, 0); |
| |
| brcmf_dbg(PCIE, "D2H_MB_DATA: 0x%04x\n", dtoh_mb_data); |
| if (dtoh_mb_data & BRCMF_D2H_DEV_DS_ENTER_REQ) { |
| brcmf_dbg(PCIE, "D2H_MB_DATA: DEEP SLEEP REQ\n"); |
| brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_DS_ACK); |
| brcmf_dbg(PCIE, "D2H_MB_DATA: sent DEEP SLEEP ACK\n"); |
| } |
| if (dtoh_mb_data & BRCMF_D2H_DEV_DS_EXIT_NOTE) |
| brcmf_dbg(PCIE, "D2H_MB_DATA: DEEP SLEEP EXIT\n"); |
| if (dtoh_mb_data & BRCMF_D2H_DEV_D3_ACK) { |
| brcmf_dbg(PCIE, "D2H_MB_DATA: D3 ACK\n"); |
| if (waitqueue_active(&devinfo->mbdata_resp_wait)) { |
| devinfo->mbdata_completed = true; |
| wake_up(&devinfo->mbdata_resp_wait); |
| } |
| } |
| } |
| |
| |
| static void brcmf_pcie_bus_console_init(struct brcmf_pciedev_info *devinfo) |
| { |
| struct brcmf_pcie_shared_info *shared; |
| struct brcmf_pcie_console *console; |
| u32 addr; |
| |
| shared = &devinfo->shared; |
| console = &shared->console; |
| addr = shared->tcm_base_address + BRCMF_SHARED_CONSOLE_ADDR_OFFSET; |
| console->base_addr = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| addr = console->base_addr + BRCMF_CONSOLE_BUFADDR_OFFSET; |
| console->buf_addr = brcmf_pcie_read_tcm32(devinfo, addr); |
| addr = console->base_addr + BRCMF_CONSOLE_BUFSIZE_OFFSET; |
| console->bufsize = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| brcmf_dbg(PCIE, "Console: base %x, buf %x, size %d\n", |
| console->base_addr, console->buf_addr, console->bufsize); |
| } |
| |
| |
| static void brcmf_pcie_bus_console_read(struct brcmf_pciedev_info *devinfo) |
| { |
| struct brcmf_pcie_console *console; |
| u32 addr; |
| u8 ch; |
| u32 newidx; |
| |
| console = &devinfo->shared.console; |
| addr = console->base_addr + BRCMF_CONSOLE_WRITEIDX_OFFSET; |
| newidx = brcmf_pcie_read_tcm32(devinfo, addr); |
| while (newidx != console->read_idx) { |
| addr = console->buf_addr + console->read_idx; |
| ch = brcmf_pcie_read_tcm8(devinfo, addr); |
| console->read_idx++; |
| if (console->read_idx == console->bufsize) |
| console->read_idx = 0; |
| if (ch == '\r') |
| continue; |
| console->log_str[console->log_idx] = ch; |
| console->log_idx++; |
| if ((ch != '\n') && |
| (console->log_idx == (sizeof(console->log_str) - 2))) { |
| ch = '\n'; |
| console->log_str[console->log_idx] = ch; |
| console->log_idx++; |
| } |
| |
| if (ch == '\n') { |
| console->log_str[console->log_idx] = 0; |
| brcmf_dbg(PCIE, "CONSOLE: %s\n", console->log_str); |
| console->log_idx = 0; |
| } |
| } |
| } |
| |
| |
| static __used void brcmf_pcie_ringbell_v1(struct brcmf_pciedev_info *devinfo) |
| { |
| u32 reg_value; |
| |
| brcmf_dbg(PCIE, "RING !\n"); |
| reg_value = brcmf_pcie_read_reg32(devinfo, |
| BRCMF_PCIE_PCIE2REG_MAILBOXINT); |
| reg_value |= BRCMF_PCIE2_INTB; |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, |
| reg_value); |
| } |
| |
| |
| static void brcmf_pcie_ringbell_v2(struct brcmf_pciedev_info *devinfo) |
| { |
| brcmf_dbg(PCIE, "RING !\n"); |
| /* Any arbitrary value will do, lets use 1 */ |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_H2D_MAILBOX, 1); |
| } |
| |
| |
| static void brcmf_pcie_intr_disable(struct brcmf_pciedev_info *devinfo) |
| { |
| if (devinfo->generic_corerev == BRCMF_PCIE_GENREV1) |
| pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_INTMASK, |
| 0); |
| else |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, |
| 0); |
| } |
| |
| |
| static void brcmf_pcie_intr_enable(struct brcmf_pciedev_info *devinfo) |
| { |
| if (devinfo->generic_corerev == BRCMF_PCIE_GENREV1) |
| pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_INTMASK, |
| BRCMF_PCIE_INT_DEF); |
| else |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, |
| BRCMF_PCIE_MB_INT_D2H_DB | |
| BRCMF_PCIE_MB_INT_FN0_0 | |
| BRCMF_PCIE_MB_INT_FN0_1); |
| } |
| |
| |
| static irqreturn_t brcmf_pcie_quick_check_isr_v1(int irq, void *arg) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; |
| u32 status; |
| |
| status = 0; |
| pci_read_config_dword(devinfo->pdev, BRCMF_PCIE_REG_INTSTATUS, &status); |
| if (status) { |
| brcmf_pcie_intr_disable(devinfo); |
| brcmf_dbg(PCIE, "Enter\n"); |
| return IRQ_WAKE_THREAD; |
| } |
| return IRQ_NONE; |
| } |
| |
| |
| static irqreturn_t brcmf_pcie_quick_check_isr_v2(int irq, void *arg) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; |
| |
| if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT)) { |
| brcmf_pcie_intr_disable(devinfo); |
| brcmf_dbg(PCIE, "Enter\n"); |
| return IRQ_WAKE_THREAD; |
| } |
| return IRQ_NONE; |
| } |
| |
| |
| static irqreturn_t brcmf_pcie_isr_thread_v1(int irq, void *arg) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; |
| const struct pci_dev *pdev = devinfo->pdev; |
| u32 status; |
| |
| devinfo->in_irq = true; |
| status = 0; |
| pci_read_config_dword(pdev, BRCMF_PCIE_REG_INTSTATUS, &status); |
| brcmf_dbg(PCIE, "Enter %x\n", status); |
| if (status) { |
| pci_write_config_dword(pdev, BRCMF_PCIE_REG_INTSTATUS, status); |
| if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) |
| brcmf_proto_msgbuf_rx_trigger(&devinfo->pdev->dev); |
| } |
| if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) |
| brcmf_pcie_intr_enable(devinfo); |
| devinfo->in_irq = false; |
| return IRQ_HANDLED; |
| } |
| |
| |
| static irqreturn_t brcmf_pcie_isr_thread_v2(int irq, void *arg) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; |
| u32 status; |
| |
| devinfo->in_irq = true; |
| status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); |
| brcmf_dbg(PCIE, "Enter %x\n", status); |
| if (status) { |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, |
| status); |
| if (status & (BRCMF_PCIE_MB_INT_FN0_0 | |
| BRCMF_PCIE_MB_INT_FN0_1)) |
| brcmf_pcie_handle_mb_data(devinfo); |
| if (status & BRCMF_PCIE_MB_INT_D2H_DB) { |
| if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) |
| brcmf_proto_msgbuf_rx_trigger( |
| &devinfo->pdev->dev); |
| } |
| } |
| brcmf_pcie_bus_console_read(devinfo); |
| if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) |
| brcmf_pcie_intr_enable(devinfo); |
| devinfo->in_irq = false; |
| return IRQ_HANDLED; |
| } |
| |
| |
| static int brcmf_pcie_request_irq(struct brcmf_pciedev_info *devinfo) |
| { |
| struct pci_dev *pdev; |
| |
| pdev = devinfo->pdev; |
| |
| brcmf_pcie_intr_disable(devinfo); |
| |
| brcmf_dbg(PCIE, "Enter\n"); |
| /* is it a v1 or v2 implementation */ |
| devinfo->irq_requested = false; |
| pci_enable_msi(pdev); |
| if (devinfo->generic_corerev == BRCMF_PCIE_GENREV1) { |
| if (request_threaded_irq(pdev->irq, |
| brcmf_pcie_quick_check_isr_v1, |
| brcmf_pcie_isr_thread_v1, |
| IRQF_SHARED, "brcmf_pcie_intr", |
| devinfo)) { |
| pci_disable_msi(pdev); |
| brcmf_err("Failed to request IRQ %d\n", pdev->irq); |
| return -EIO; |
| } |
| } else { |
| if (request_threaded_irq(pdev->irq, |
| brcmf_pcie_quick_check_isr_v2, |
| brcmf_pcie_isr_thread_v2, |
| IRQF_SHARED, "brcmf_pcie_intr", |
| devinfo)) { |
| pci_disable_msi(pdev); |
| brcmf_err("Failed to request IRQ %d\n", pdev->irq); |
| return -EIO; |
| } |
| } |
| devinfo->irq_requested = true; |
| devinfo->irq_allocated = true; |
| return 0; |
| } |
| |
| |
| static void brcmf_pcie_release_irq(struct brcmf_pciedev_info *devinfo) |
| { |
| struct pci_dev *pdev; |
| u32 status; |
| u32 count; |
| |
| if (!devinfo->irq_allocated) |
| return; |
| |
| pdev = devinfo->pdev; |
| |
| brcmf_pcie_intr_disable(devinfo); |
| if (!devinfo->irq_requested) |
| return; |
| devinfo->irq_requested = false; |
| free_irq(pdev->irq, devinfo); |
| pci_disable_msi(pdev); |
| |
| msleep(50); |
| count = 0; |
| while ((devinfo->in_irq) && (count < 20)) { |
| msleep(50); |
| count++; |
| } |
| if (devinfo->in_irq) |
| brcmf_err("Still in IRQ (processing) !!!\n"); |
| |
| if (devinfo->generic_corerev == BRCMF_PCIE_GENREV1) { |
| status = 0; |
| pci_read_config_dword(pdev, BRCMF_PCIE_REG_INTSTATUS, &status); |
| pci_write_config_dword(pdev, BRCMF_PCIE_REG_INTSTATUS, status); |
| } else { |
| status = brcmf_pcie_read_reg32(devinfo, |
| BRCMF_PCIE_PCIE2REG_MAILBOXINT); |
| brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, |
| status); |
| } |
| devinfo->irq_allocated = false; |
| } |
| |
| |
| static int brcmf_pcie_ring_mb_write_rptr(void *ctx) |
| { |
| struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; |
| struct brcmf_pciedev_info *devinfo = ring->devinfo; |
| struct brcmf_commonring *commonring = &ring->commonring; |
| |
| if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) |
| return -EIO; |
| |
| brcmf_dbg(PCIE, "W r_ptr %d (%d), ring %d\n", commonring->r_ptr, |
| commonring->w_ptr, ring->id); |
| |
| brcmf_pcie_write_tcm16(devinfo, ring->r_idx_addr, commonring->r_ptr); |
| |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_ring_mb_write_wptr(void *ctx) |
| { |
| struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; |
| struct brcmf_pciedev_info *devinfo = ring->devinfo; |
| struct brcmf_commonring *commonring = &ring->commonring; |
| |
| if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) |
| return -EIO; |
| |
| brcmf_dbg(PCIE, "W w_ptr %d (%d), ring %d\n", commonring->w_ptr, |
| commonring->r_ptr, ring->id); |
| |
| brcmf_pcie_write_tcm16(devinfo, ring->w_idx_addr, commonring->w_ptr); |
| |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_ring_mb_ring_bell(void *ctx) |
| { |
| struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; |
| struct brcmf_pciedev_info *devinfo = ring->devinfo; |
| |
| if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) |
| return -EIO; |
| |
| devinfo->ringbell(devinfo); |
| |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_ring_mb_update_rptr(void *ctx) |
| { |
| struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; |
| struct brcmf_pciedev_info *devinfo = ring->devinfo; |
| struct brcmf_commonring *commonring = &ring->commonring; |
| |
| if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) |
| return -EIO; |
| |
| commonring->r_ptr = brcmf_pcie_read_tcm16(devinfo, ring->r_idx_addr); |
| |
| brcmf_dbg(PCIE, "R r_ptr %d (%d), ring %d\n", commonring->r_ptr, |
| commonring->w_ptr, ring->id); |
| |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_ring_mb_update_wptr(void *ctx) |
| { |
| struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx; |
| struct brcmf_pciedev_info *devinfo = ring->devinfo; |
| struct brcmf_commonring *commonring = &ring->commonring; |
| |
| if (devinfo->state != BRCMFMAC_PCIE_STATE_UP) |
| return -EIO; |
| |
| commonring->w_ptr = brcmf_pcie_read_tcm16(devinfo, ring->w_idx_addr); |
| |
| brcmf_dbg(PCIE, "R w_ptr %d (%d), ring %d\n", commonring->w_ptr, |
| commonring->r_ptr, ring->id); |
| |
| return 0; |
| } |
| |
| |
| static void * |
| brcmf_pcie_init_dmabuffer_for_device(struct brcmf_pciedev_info *devinfo, |
| u32 size, u32 tcm_dma_phys_addr, |
| dma_addr_t *dma_handle) |
| { |
| void *ring; |
| u64 address; |
| |
| ring = dma_alloc_coherent(&devinfo->pdev->dev, size, dma_handle, |
| GFP_KERNEL); |
| if (!ring) |
| return NULL; |
| |
| address = (u64)*dma_handle; |
| brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr, |
| address & 0xffffffff); |
| brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr + 4, address >> 32); |
| |
| memset(ring, 0, size); |
| |
| return (ring); |
| } |
| |
| |
| static struct brcmf_pcie_ringbuf * |
| brcmf_pcie_alloc_dma_and_ring(struct brcmf_pciedev_info *devinfo, u32 ring_id, |
| u32 tcm_ring_phys_addr) |
| { |
| void *dma_buf; |
| dma_addr_t dma_handle; |
| struct brcmf_pcie_ringbuf *ring; |
| u32 size; |
| u32 addr; |
| |
| size = brcmf_ring_max_item[ring_id] * brcmf_ring_itemsize[ring_id]; |
| dma_buf = brcmf_pcie_init_dmabuffer_for_device(devinfo, size, |
| tcm_ring_phys_addr + BRCMF_RING_MEM_BASE_ADDR_OFFSET, |
| &dma_handle); |
| if (!dma_buf) |
| return NULL; |
| |
| addr = tcm_ring_phys_addr + BRCMF_RING_MAX_ITEM_OFFSET; |
| brcmf_pcie_write_tcm16(devinfo, addr, brcmf_ring_max_item[ring_id]); |
| addr = tcm_ring_phys_addr + BRCMF_RING_LEN_ITEMS_OFFSET; |
| brcmf_pcie_write_tcm16(devinfo, addr, brcmf_ring_itemsize[ring_id]); |
| |
| ring = kzalloc(sizeof(*ring), GFP_KERNEL); |
| if (!ring) { |
| dma_free_coherent(&devinfo->pdev->dev, size, dma_buf, |
| dma_handle); |
| return NULL; |
| } |
| brcmf_commonring_config(&ring->commonring, brcmf_ring_max_item[ring_id], |
| brcmf_ring_itemsize[ring_id], dma_buf); |
| ring->dma_handle = dma_handle; |
| ring->devinfo = devinfo; |
| brcmf_commonring_register_cb(&ring->commonring, |
| brcmf_pcie_ring_mb_ring_bell, |
| brcmf_pcie_ring_mb_update_rptr, |
| brcmf_pcie_ring_mb_update_wptr, |
| brcmf_pcie_ring_mb_write_rptr, |
| brcmf_pcie_ring_mb_write_wptr, ring); |
| |
| return (ring); |
| } |
| |
| |
| static void brcmf_pcie_release_ringbuffer(struct device *dev, |
| struct brcmf_pcie_ringbuf *ring) |
| { |
| void *dma_buf; |
| u32 size; |
| |
| if (!ring) |
| return; |
| |
| dma_buf = ring->commonring.buf_addr; |
| if (dma_buf) { |
| size = ring->commonring.depth * ring->commonring.item_len; |
| dma_free_coherent(dev, size, dma_buf, ring->dma_handle); |
| } |
| kfree(ring); |
| } |
| |
| |
| static void brcmf_pcie_release_ringbuffers(struct brcmf_pciedev_info *devinfo) |
| { |
| u32 i; |
| |
| for (i = 0; i < BRCMF_NROF_COMMON_MSGRINGS; i++) { |
| brcmf_pcie_release_ringbuffer(&devinfo->pdev->dev, |
| devinfo->shared.commonrings[i]); |
| devinfo->shared.commonrings[i] = NULL; |
| } |
| kfree(devinfo->shared.flowrings); |
| devinfo->shared.flowrings = NULL; |
| } |
| |
| |
| static int brcmf_pcie_init_ringbuffers(struct brcmf_pciedev_info *devinfo) |
| { |
| struct brcmf_pcie_ringbuf *ring; |
| struct brcmf_pcie_ringbuf *rings; |
| u32 ring_addr; |
| u32 d2h_w_idx_ptr; |
| u32 d2h_r_idx_ptr; |
| u32 h2d_w_idx_ptr; |
| u32 h2d_r_idx_ptr; |
| u32 addr; |
| u32 ring_mem_ptr; |
| u32 i; |
| u16 max_sub_queues; |
| |
| ring_addr = devinfo->shared.ring_info_addr; |
| brcmf_dbg(PCIE, "Base ring addr = 0x%08x\n", ring_addr); |
| |
| addr = ring_addr + BRCMF_SHARED_RING_D2H_W_IDX_PTR_OFFSET; |
| d2h_w_idx_ptr = brcmf_pcie_read_tcm32(devinfo, addr); |
| addr = ring_addr + BRCMF_SHARED_RING_D2H_R_IDX_PTR_OFFSET; |
| d2h_r_idx_ptr = brcmf_pcie_read_tcm32(devinfo, addr); |
| addr = ring_addr + BRCMF_SHARED_RING_H2D_W_IDX_PTR_OFFSET; |
| h2d_w_idx_ptr = brcmf_pcie_read_tcm32(devinfo, addr); |
| addr = ring_addr + BRCMF_SHARED_RING_H2D_R_IDX_PTR_OFFSET; |
| h2d_r_idx_ptr = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| addr = ring_addr + BRCMF_SHARED_RING_TCM_MEMLOC_OFFSET; |
| ring_mem_ptr = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| for (i = 0; i < BRCMF_NROF_H2D_COMMON_MSGRINGS; i++) { |
| ring = brcmf_pcie_alloc_dma_and_ring(devinfo, i, ring_mem_ptr); |
| if (!ring) |
| goto fail; |
| ring->w_idx_addr = h2d_w_idx_ptr; |
| ring->r_idx_addr = h2d_r_idx_ptr; |
| ring->id = i; |
| devinfo->shared.commonrings[i] = ring; |
| |
| h2d_w_idx_ptr += sizeof(u32); |
| h2d_r_idx_ptr += sizeof(u32); |
| ring_mem_ptr += BRCMF_RING_MEM_SZ; |
| } |
| |
| for (i = BRCMF_NROF_H2D_COMMON_MSGRINGS; |
| i < BRCMF_NROF_COMMON_MSGRINGS; i++) { |
| ring = brcmf_pcie_alloc_dma_and_ring(devinfo, i, ring_mem_ptr); |
| if (!ring) |
| goto fail; |
| ring->w_idx_addr = d2h_w_idx_ptr; |
| ring->r_idx_addr = d2h_r_idx_ptr; |
| ring->id = i; |
| devinfo->shared.commonrings[i] = ring; |
| |
| d2h_w_idx_ptr += sizeof(u32); |
| d2h_r_idx_ptr += sizeof(u32); |
| ring_mem_ptr += BRCMF_RING_MEM_SZ; |
| } |
| |
| addr = ring_addr + BRCMF_SHARED_RING_MAX_SUB_QUEUES; |
| max_sub_queues = brcmf_pcie_read_tcm16(devinfo, addr); |
| devinfo->shared.nrof_flowrings = |
| max_sub_queues - BRCMF_NROF_H2D_COMMON_MSGRINGS; |
| rings = kcalloc(devinfo->shared.nrof_flowrings, sizeof(*ring), |
| GFP_KERNEL); |
| if (!rings) |
| goto fail; |
| |
| brcmf_dbg(PCIE, "Nr of flowrings is %d\n", |
| devinfo->shared.nrof_flowrings); |
| |
| for (i = 0; i < devinfo->shared.nrof_flowrings; i++) { |
| ring = &rings[i]; |
| ring->devinfo = devinfo; |
| ring->id = i + BRCMF_NROF_COMMON_MSGRINGS; |
| brcmf_commonring_register_cb(&ring->commonring, |
| brcmf_pcie_ring_mb_ring_bell, |
| brcmf_pcie_ring_mb_update_rptr, |
| brcmf_pcie_ring_mb_update_wptr, |
| brcmf_pcie_ring_mb_write_rptr, |
| brcmf_pcie_ring_mb_write_wptr, |
| ring); |
| ring->w_idx_addr = h2d_w_idx_ptr; |
| ring->r_idx_addr = h2d_r_idx_ptr; |
| h2d_w_idx_ptr += sizeof(u32); |
| h2d_r_idx_ptr += sizeof(u32); |
| } |
| devinfo->shared.flowrings = rings; |
| |
| return 0; |
| |
| fail: |
| brcmf_err("Allocating commonring buffers failed\n"); |
| brcmf_pcie_release_ringbuffers(devinfo); |
| return -ENOMEM; |
| } |
| |
| |
| static void |
| brcmf_pcie_release_scratchbuffers(struct brcmf_pciedev_info *devinfo) |
| { |
| if (devinfo->shared.scratch) |
| dma_free_coherent(&devinfo->pdev->dev, |
| BRCMF_DMA_D2H_SCRATCH_BUF_LEN, |
| devinfo->shared.scratch, |
| devinfo->shared.scratch_dmahandle); |
| if (devinfo->shared.ringupd) |
| dma_free_coherent(&devinfo->pdev->dev, |
| BRCMF_DMA_D2H_RINGUPD_BUF_LEN, |
| devinfo->shared.ringupd, |
| devinfo->shared.ringupd_dmahandle); |
| } |
| |
| static int brcmf_pcie_init_scratchbuffers(struct brcmf_pciedev_info *devinfo) |
| { |
| u64 address; |
| u32 addr; |
| |
| devinfo->shared.scratch = dma_alloc_coherent(&devinfo->pdev->dev, |
| BRCMF_DMA_D2H_SCRATCH_BUF_LEN, |
| &devinfo->shared.scratch_dmahandle, GFP_KERNEL); |
| if (!devinfo->shared.scratch) |
| goto fail; |
| |
| memset(devinfo->shared.scratch, 0, BRCMF_DMA_D2H_SCRATCH_BUF_LEN); |
| brcmf_dma_flush(devinfo->shared.scratch, BRCMF_DMA_D2H_SCRATCH_BUF_LEN); |
| |
| addr = devinfo->shared.tcm_base_address + |
| BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET; |
| address = (u64)devinfo->shared.scratch_dmahandle; |
| brcmf_pcie_write_tcm32(devinfo, addr, address & 0xffffffff); |
| brcmf_pcie_write_tcm32(devinfo, addr + 4, address >> 32); |
| addr = devinfo->shared.tcm_base_address + |
| BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET; |
| brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_SCRATCH_BUF_LEN); |
| |
| devinfo->shared.ringupd = dma_alloc_coherent(&devinfo->pdev->dev, |
| BRCMF_DMA_D2H_RINGUPD_BUF_LEN, |
| &devinfo->shared.ringupd_dmahandle, GFP_KERNEL); |
| if (!devinfo->shared.ringupd) |
| goto fail; |
| |
| memset(devinfo->shared.ringupd, 0, BRCMF_DMA_D2H_RINGUPD_BUF_LEN); |
| brcmf_dma_flush(devinfo->shared.ringupd, BRCMF_DMA_D2H_RINGUPD_BUF_LEN); |
| |
| addr = devinfo->shared.tcm_base_address + |
| BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET; |
| address = (u64)devinfo->shared.ringupd_dmahandle; |
| brcmf_pcie_write_tcm32(devinfo, addr, address & 0xffffffff); |
| brcmf_pcie_write_tcm32(devinfo, addr + 4, address >> 32); |
| addr = devinfo->shared.tcm_base_address + |
| BRCMF_SHARED_DMA_RINGUPD_LEN_OFFSET; |
| brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_RINGUPD_BUF_LEN); |
| return 0; |
| |
| fail: |
| brcmf_err("Allocating scratch buffers failed\n"); |
| brcmf_pcie_release_scratchbuffers(devinfo); |
| return -ENOMEM; |
| } |
| |
| |
| static void brcmf_pcie_down(struct device *dev) |
| { |
| } |
| |
| |
| static int brcmf_pcie_tx(struct device *dev, struct sk_buff *skb) |
| { |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_tx_ctlpkt(struct device *dev, unsigned char *msg, |
| uint len) |
| { |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_rx_ctlpkt(struct device *dev, unsigned char *msg, |
| uint len) |
| { |
| return 0; |
| } |
| |
| |
| static void brcmf_pcie_wowl_config(struct device *dev, bool enabled) |
| { |
| struct brcmf_bus *bus_if = dev_get_drvdata(dev); |
| struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie; |
| struct brcmf_pciedev_info *devinfo = buspub->devinfo; |
| |
| brcmf_dbg(PCIE, "Configuring WOWL, enabled=%d\n", enabled); |
| devinfo->wowl_enabled = enabled; |
| if (enabled) |
| device_set_wakeup_enable(&devinfo->pdev->dev, true); |
| else |
| device_set_wakeup_enable(&devinfo->pdev->dev, false); |
| } |
| |
| |
| static struct brcmf_bus_ops brcmf_pcie_bus_ops = { |
| .txdata = brcmf_pcie_tx, |
| .stop = brcmf_pcie_down, |
| .txctl = brcmf_pcie_tx_ctlpkt, |
| .rxctl = brcmf_pcie_rx_ctlpkt, |
| .wowl_config = brcmf_pcie_wowl_config, |
| }; |
| |
| |
| static int |
| brcmf_pcie_init_share_ram_info(struct brcmf_pciedev_info *devinfo, |
| u32 sharedram_addr) |
| { |
| struct brcmf_pcie_shared_info *shared; |
| u32 addr; |
| u32 version; |
| |
| shared = &devinfo->shared; |
| shared->tcm_base_address = sharedram_addr; |
| |
| shared->flags = brcmf_pcie_read_tcm32(devinfo, sharedram_addr); |
| version = shared->flags & BRCMF_PCIE_SHARED_VERSION_MASK; |
| brcmf_dbg(PCIE, "PCIe protocol version %d\n", version); |
| if ((version > BRCMF_PCIE_MAX_SHARED_VERSION) || |
| (version < BRCMF_PCIE_MIN_SHARED_VERSION)) { |
| brcmf_err("Unsupported PCIE version %d\n", version); |
| return -EINVAL; |
| } |
| if (shared->flags & BRCMF_PCIE_SHARED_TXPUSH_SUPPORT) { |
| brcmf_err("Unsupported legacy TX mode 0x%x\n", |
| shared->flags & BRCMF_PCIE_SHARED_TXPUSH_SUPPORT); |
| return -EINVAL; |
| } |
| |
| addr = sharedram_addr + BRCMF_SHARED_MAX_RXBUFPOST_OFFSET; |
| shared->max_rxbufpost = brcmf_pcie_read_tcm16(devinfo, addr); |
| if (shared->max_rxbufpost == 0) |
| shared->max_rxbufpost = BRCMF_DEF_MAX_RXBUFPOST; |
| |
| addr = sharedram_addr + BRCMF_SHARED_RX_DATAOFFSET_OFFSET; |
| shared->rx_dataoffset = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| addr = sharedram_addr + BRCMF_SHARED_HTOD_MB_DATA_ADDR_OFFSET; |
| shared->htod_mb_data_addr = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| addr = sharedram_addr + BRCMF_SHARED_DTOH_MB_DATA_ADDR_OFFSET; |
| shared->dtoh_mb_data_addr = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| addr = sharedram_addr + BRCMF_SHARED_RING_INFO_ADDR_OFFSET; |
| shared->ring_info_addr = brcmf_pcie_read_tcm32(devinfo, addr); |
| |
| brcmf_dbg(PCIE, "max rx buf post %d, rx dataoffset %d\n", |
| shared->max_rxbufpost, shared->rx_dataoffset); |
| |
| brcmf_pcie_bus_console_init(devinfo); |
| |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_get_fwnames(struct brcmf_pciedev_info *devinfo) |
| { |
| char *fw_name; |
| char *nvram_name; |
| uint fw_len, nv_len; |
| char end; |
| |
| brcmf_dbg(PCIE, "Enter, chip 0x%04x chiprev %d\n", devinfo->ci->chip, |
| devinfo->ci->chiprev); |
| |
| switch (devinfo->ci->chip) { |
| case BRCM_CC_43602_CHIP_ID: |
| fw_name = BRCMF_PCIE_43602_FW_NAME; |
| nvram_name = BRCMF_PCIE_43602_NVRAM_NAME; |
| break; |
| case BRCM_CC_4354_CHIP_ID: |
| fw_name = BRCMF_PCIE_4354_FW_NAME; |
| nvram_name = BRCMF_PCIE_4354_NVRAM_NAME; |
| break; |
| case BRCM_CC_4356_CHIP_ID: |
| fw_name = BRCMF_PCIE_4356_FW_NAME; |
| nvram_name = BRCMF_PCIE_4356_NVRAM_NAME; |
| break; |
| case BRCM_CC_43567_CHIP_ID: |
| case BRCM_CC_43569_CHIP_ID: |
| case BRCM_CC_43570_CHIP_ID: |
| fw_name = BRCMF_PCIE_43570_FW_NAME; |
| nvram_name = BRCMF_PCIE_43570_NVRAM_NAME; |
| break; |
| default: |
| brcmf_err("Unsupported chip 0x%04x\n", devinfo->ci->chip); |
| return -ENODEV; |
| } |
| |
| fw_len = sizeof(devinfo->fw_name) - 1; |
| nv_len = sizeof(devinfo->nvram_name) - 1; |
| /* check if firmware path is provided by module parameter */ |
| if (brcmf_firmware_path[0] != '\0') { |
| strncpy(devinfo->fw_name, brcmf_firmware_path, fw_len); |
| strncpy(devinfo->nvram_name, brcmf_firmware_path, nv_len); |
| fw_len -= strlen(devinfo->fw_name); |
| nv_len -= strlen(devinfo->nvram_name); |
| |
| end = brcmf_firmware_path[strlen(brcmf_firmware_path) - 1]; |
| if (end != '/') { |
| strncat(devinfo->fw_name, "/", fw_len); |
| strncat(devinfo->nvram_name, "/", nv_len); |
| fw_len--; |
| nv_len--; |
| } |
| } |
| strncat(devinfo->fw_name, fw_name, fw_len); |
| strncat(devinfo->nvram_name, nvram_name, nv_len); |
| |
| return 0; |
| } |
| |
| |
| static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo, |
| const struct firmware *fw, void *nvram, |
| u32 nvram_len) |
| { |
| u32 sharedram_addr; |
| u32 sharedram_addr_written; |
| u32 loop_counter; |
| int err; |
| u32 address; |
| u32 resetintr; |
| |
| devinfo->ringbell = brcmf_pcie_ringbell_v2; |
| devinfo->generic_corerev = BRCMF_PCIE_GENREV2; |
| |
| brcmf_dbg(PCIE, "Halt ARM.\n"); |
| err = brcmf_pcie_enter_download_state(devinfo); |
| if (err) |
| return err; |
| |
| brcmf_dbg(PCIE, "Download FW %s\n", devinfo->fw_name); |
| brcmf_pcie_copy_mem_todev(devinfo, devinfo->ci->rambase, |
| (void *)fw->data, fw->size); |
| |
| resetintr = get_unaligned_le32(fw->data); |
| release_firmware(fw); |
| |
| /* reset last 4 bytes of RAM address. to be used for shared |
| * area. This identifies when FW is running |
| */ |
| brcmf_pcie_write_ram32(devinfo, devinfo->ci->ramsize - 4, 0); |
| |
| if (nvram) { |
| brcmf_dbg(PCIE, "Download NVRAM %s\n", devinfo->nvram_name); |
| address = devinfo->ci->rambase + devinfo->ci->ramsize - |
| nvram_len; |
| brcmf_pcie_copy_mem_todev(devinfo, address, nvram, nvram_len); |
| brcmf_fw_nvram_free(nvram); |
| } else { |
| brcmf_dbg(PCIE, "No matching NVRAM file found %s\n", |
| devinfo->nvram_name); |
| } |
| |
| sharedram_addr_written = brcmf_pcie_read_ram32(devinfo, |
| devinfo->ci->ramsize - |
| 4); |
| brcmf_dbg(PCIE, "Bring ARM in running state\n"); |
| err = brcmf_pcie_exit_download_state(devinfo, resetintr); |
| if (err) |
| return err; |
| |
| brcmf_dbg(PCIE, "Wait for FW init\n"); |
| sharedram_addr = sharedram_addr_written; |
| loop_counter = BRCMF_PCIE_FW_UP_TIMEOUT / 50; |
| while ((sharedram_addr == sharedram_addr_written) && (loop_counter)) { |
| msleep(50); |
| sharedram_addr = brcmf_pcie_read_ram32(devinfo, |
| devinfo->ci->ramsize - |
| 4); |
| loop_counter--; |
| } |
| if (sharedram_addr == sharedram_addr_written) { |
| brcmf_err("FW failed to initialize\n"); |
| return -ENODEV; |
| } |
| brcmf_dbg(PCIE, "Shared RAM addr: 0x%08x\n", sharedram_addr); |
| |
| return (brcmf_pcie_init_share_ram_info(devinfo, sharedram_addr)); |
| } |
| |
| |
| static int brcmf_pcie_get_resource(struct brcmf_pciedev_info *devinfo) |
| { |
| struct pci_dev *pdev; |
| int err; |
| phys_addr_t bar0_addr, bar1_addr; |
| ulong bar1_size; |
| |
| pdev = devinfo->pdev; |
| |
| err = pci_enable_device(pdev); |
| if (err) { |
| brcmf_err("pci_enable_device failed err=%d\n", err); |
| return err; |
| } |
| |
| pci_set_master(pdev); |
| |
| /* Bar-0 mapped address */ |
| bar0_addr = pci_resource_start(pdev, 0); |
| /* Bar-1 mapped address */ |
| bar1_addr = pci_resource_start(pdev, 2); |
| /* read Bar-1 mapped memory range */ |
| bar1_size = pci_resource_len(pdev, 2); |
| if ((bar1_size == 0) || (bar1_addr == 0)) { |
| brcmf_err("BAR1 Not enabled, device size=%ld, addr=%#016llx\n", |
| bar1_size, (unsigned long long)bar1_addr); |
| return -EINVAL; |
| } |
| |
| devinfo->regs = ioremap_nocache(bar0_addr, BRCMF_PCIE_REG_MAP_SIZE); |
| devinfo->tcm = ioremap_nocache(bar1_addr, BRCMF_PCIE_TCM_MAP_SIZE); |
| devinfo->tcm_size = BRCMF_PCIE_TCM_MAP_SIZE; |
| |
| if (!devinfo->regs || !devinfo->tcm) { |
| brcmf_err("ioremap() failed (%p,%p)\n", devinfo->regs, |
| devinfo->tcm); |
| return -EINVAL; |
| } |
| brcmf_dbg(PCIE, "Phys addr : reg space = %p base addr %#016llx\n", |
| devinfo->regs, (unsigned long long)bar0_addr); |
| brcmf_dbg(PCIE, "Phys addr : mem space = %p base addr %#016llx\n", |
| devinfo->tcm, (unsigned long long)bar1_addr); |
| |
| return 0; |
| } |
| |
| |
| static void brcmf_pcie_release_resource(struct brcmf_pciedev_info *devinfo) |
| { |
| if (devinfo->tcm) |
| iounmap(devinfo->tcm); |
| if (devinfo->regs) |
| iounmap(devinfo->regs); |
| |
| pci_disable_device(devinfo->pdev); |
| } |
| |
| |
| static int brcmf_pcie_attach_bus(struct device *dev) |
| { |
| int ret; |
| |
| /* Attach to the common driver interface */ |
| ret = brcmf_attach(dev); |
| if (ret) { |
| brcmf_err("brcmf_attach failed\n"); |
| } else { |
| ret = brcmf_bus_start(dev); |
| if (ret) |
| brcmf_err("dongle is not responding\n"); |
| } |
| |
| return ret; |
| } |
| |
| |
| static u32 brcmf_pcie_buscore_prep_addr(const struct pci_dev *pdev, u32 addr) |
| { |
| u32 ret_addr; |
| |
| ret_addr = addr & (BRCMF_PCIE_BAR0_REG_SIZE - 1); |
| addr &= ~(BRCMF_PCIE_BAR0_REG_SIZE - 1); |
| pci_write_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, addr); |
| |
| return ret_addr; |
| } |
| |
| |
| static u32 brcmf_pcie_buscore_read32(void *ctx, u32 addr) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; |
| |
| addr = brcmf_pcie_buscore_prep_addr(devinfo->pdev, addr); |
| return brcmf_pcie_read_reg32(devinfo, addr); |
| } |
| |
| |
| static void brcmf_pcie_buscore_write32(void *ctx, u32 addr, u32 value) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; |
| |
| addr = brcmf_pcie_buscore_prep_addr(devinfo->pdev, addr); |
| brcmf_pcie_write_reg32(devinfo, addr, value); |
| } |
| |
| |
| static int brcmf_pcie_buscoreprep(void *ctx) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; |
| int err; |
| |
| err = brcmf_pcie_get_resource(devinfo); |
| if (err == 0) { |
| /* Set CC watchdog to reset all the cores on the chip to bring |
| * back dongle to a sane state. |
| */ |
| brcmf_pcie_buscore_write32(ctx, CORE_CC_REG(SI_ENUM_BASE, |
| watchdog), 4); |
| msleep(100); |
| } |
| |
| return err; |
| } |
| |
| |
| static void brcmf_pcie_buscore_exitdl(void *ctx, struct brcmf_chip *chip, |
| u32 rstvec) |
| { |
| struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; |
| |
| brcmf_pcie_write_tcm32(devinfo, 0, rstvec); |
| } |
| |
| |
| static const struct brcmf_buscore_ops brcmf_pcie_buscore_ops = { |
| .prepare = brcmf_pcie_buscoreprep, |
| .exit_dl = brcmf_pcie_buscore_exitdl, |
| .read32 = brcmf_pcie_buscore_read32, |
| .write32 = brcmf_pcie_buscore_write32, |
| }; |
| |
| static void brcmf_pcie_setup(struct device *dev, const struct firmware *fw, |
| void *nvram, u32 nvram_len) |
| { |
| struct brcmf_bus *bus = dev_get_drvdata(dev); |
| struct brcmf_pciedev *pcie_bus_dev = bus->bus_priv.pcie; |
| struct brcmf_pciedev_info *devinfo = pcie_bus_dev->devinfo; |
| struct brcmf_commonring **flowrings; |
| int ret; |
| u32 i; |
| |
| brcmf_pcie_attach(devinfo); |
| |
| ret = brcmf_pcie_download_fw_nvram(devinfo, fw, nvram, nvram_len); |
| if (ret) |
| goto fail; |
| |
| devinfo->state = BRCMFMAC_PCIE_STATE_UP; |
| |
| ret = brcmf_pcie_init_ringbuffers(devinfo); |
| if (ret) |
| goto fail; |
| |
| ret = brcmf_pcie_init_scratchbuffers(devinfo); |
| if (ret) |
| goto fail; |
| |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| ret = brcmf_pcie_request_irq(devinfo); |
| if (ret) |
| goto fail; |
| |
| /* hook the commonrings in the bus structure. */ |
| for (i = 0; i < BRCMF_NROF_COMMON_MSGRINGS; i++) |
| bus->msgbuf->commonrings[i] = |
| &devinfo->shared.commonrings[i]->commonring; |
| |
| flowrings = kcalloc(devinfo->shared.nrof_flowrings, sizeof(flowrings), |
| GFP_KERNEL); |
| if (!flowrings) |
| goto fail; |
| |
| for (i = 0; i < devinfo->shared.nrof_flowrings; i++) |
| flowrings[i] = &devinfo->shared.flowrings[i].commonring; |
| bus->msgbuf->flowrings = flowrings; |
| |
| bus->msgbuf->rx_dataoffset = devinfo->shared.rx_dataoffset; |
| bus->msgbuf->max_rxbufpost = devinfo->shared.max_rxbufpost; |
| bus->msgbuf->nrof_flowrings = devinfo->shared.nrof_flowrings; |
| |
| init_waitqueue_head(&devinfo->mbdata_resp_wait); |
| |
| brcmf_pcie_intr_enable(devinfo); |
| if (brcmf_pcie_attach_bus(bus->dev) == 0) |
| return; |
| |
| brcmf_pcie_bus_console_read(devinfo); |
| |
| fail: |
| device_release_driver(dev); |
| } |
| |
| static int |
| brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
| { |
| int ret; |
| struct brcmf_pciedev_info *devinfo; |
| struct brcmf_pciedev *pcie_bus_dev; |
| struct brcmf_bus *bus; |
| |
| brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device); |
| |
| ret = -ENOMEM; |
| devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL); |
| if (devinfo == NULL) |
| return ret; |
| |
| devinfo->pdev = pdev; |
| pcie_bus_dev = NULL; |
| devinfo->ci = brcmf_chip_attach(devinfo, &brcmf_pcie_buscore_ops); |
| if (IS_ERR(devinfo->ci)) { |
| ret = PTR_ERR(devinfo->ci); |
| devinfo->ci = NULL; |
| goto fail; |
| } |
| |
| pcie_bus_dev = kzalloc(sizeof(*pcie_bus_dev), GFP_KERNEL); |
| if (pcie_bus_dev == NULL) { |
| ret = -ENOMEM; |
| goto fail; |
| } |
| |
| bus = kzalloc(sizeof(*bus), GFP_KERNEL); |
| if (!bus) { |
| ret = -ENOMEM; |
| goto fail; |
| } |
| bus->msgbuf = kzalloc(sizeof(*bus->msgbuf), GFP_KERNEL); |
| if (!bus->msgbuf) { |
| ret = -ENOMEM; |
| kfree(bus); |
| goto fail; |
| } |
| |
| /* hook it all together. */ |
| pcie_bus_dev->devinfo = devinfo; |
| pcie_bus_dev->bus = bus; |
| bus->dev = &pdev->dev; |
| bus->bus_priv.pcie = pcie_bus_dev; |
| bus->ops = &brcmf_pcie_bus_ops; |
| bus->proto_type = BRCMF_PROTO_MSGBUF; |
| bus->chip = devinfo->coreid; |
| bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot); |
| dev_set_drvdata(&pdev->dev, bus); |
| |
| ret = brcmf_pcie_get_fwnames(devinfo); |
| if (ret) |
| goto fail_bus; |
| |
| ret = brcmf_fw_get_firmwares(bus->dev, BRCMF_FW_REQUEST_NVRAM | |
| BRCMF_FW_REQ_NV_OPTIONAL, |
| devinfo->fw_name, devinfo->nvram_name, |
| brcmf_pcie_setup); |
| if (ret == 0) |
| return 0; |
| fail_bus: |
| kfree(bus->msgbuf); |
| kfree(bus); |
| fail: |
| brcmf_err("failed %x:%x\n", pdev->vendor, pdev->device); |
| brcmf_pcie_release_resource(devinfo); |
| if (devinfo->ci) |
| brcmf_chip_detach(devinfo->ci); |
| kfree(pcie_bus_dev); |
| kfree(devinfo); |
| return ret; |
| } |
| |
| |
| static void |
| brcmf_pcie_remove(struct pci_dev *pdev) |
| { |
| struct brcmf_pciedev_info *devinfo; |
| struct brcmf_bus *bus; |
| |
| brcmf_dbg(PCIE, "Enter\n"); |
| |
| bus = dev_get_drvdata(&pdev->dev); |
| if (bus == NULL) |
| return; |
| |
| devinfo = bus->bus_priv.pcie->devinfo; |
| |
| devinfo->state = BRCMFMAC_PCIE_STATE_DOWN; |
| if (devinfo->ci) |
| brcmf_pcie_intr_disable(devinfo); |
| |
| brcmf_detach(&pdev->dev); |
| |
| kfree(bus->bus_priv.pcie); |
| kfree(bus->msgbuf->flowrings); |
| kfree(bus->msgbuf); |
| kfree(bus); |
| |
| brcmf_pcie_release_irq(devinfo); |
| brcmf_pcie_release_scratchbuffers(devinfo); |
| brcmf_pcie_release_ringbuffers(devinfo); |
| brcmf_pcie_reset_device(devinfo); |
| brcmf_pcie_release_resource(devinfo); |
| |
| if (devinfo->ci) |
| brcmf_chip_detach(devinfo->ci); |
| |
| kfree(devinfo); |
| dev_set_drvdata(&pdev->dev, NULL); |
| } |
| |
| |
| #ifdef CONFIG_PM |
| |
| |
| static int brcmf_pcie_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct brcmf_pciedev_info *devinfo; |
| struct brcmf_bus *bus; |
| int err; |
| |
| brcmf_dbg(PCIE, "Enter, state=%d, pdev=%p\n", state.event, pdev); |
| |
| bus = dev_get_drvdata(&pdev->dev); |
| devinfo = bus->bus_priv.pcie->devinfo; |
| |
| brcmf_bus_change_state(bus, BRCMF_BUS_DOWN); |
| |
| devinfo->mbdata_completed = false; |
| brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D3_INFORM); |
| |
| wait_event_timeout(devinfo->mbdata_resp_wait, |
| devinfo->mbdata_completed, |
| msecs_to_jiffies(BRCMF_PCIE_MBDATA_TIMEOUT)); |
| if (!devinfo->mbdata_completed) { |
| brcmf_err("Timeout on response for entering D3 substate\n"); |
| return -EIO; |
| } |
| brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D0_INFORM_IN_USE); |
| |
| err = pci_save_state(pdev); |
| if (err) |
| brcmf_err("pci_save_state failed, err=%d\n", err); |
| if ((err) || (!devinfo->wowl_enabled)) { |
| brcmf_chip_detach(devinfo->ci); |
| devinfo->ci = NULL; |
| brcmf_pcie_remove(pdev); |
| return 0; |
| } |
| |
| return pci_prepare_to_sleep(pdev); |
| } |
| |
| static int brcmf_pcie_resume(struct pci_dev *pdev) |
| { |
| struct brcmf_pciedev_info *devinfo; |
| struct brcmf_bus *bus; |
| int err; |
| |
| bus = dev_get_drvdata(&pdev->dev); |
| brcmf_dbg(PCIE, "Enter, pdev=%p, bus=%p\n", pdev, bus); |
| |
| err = pci_set_power_state(pdev, PCI_D0); |
| if (err) { |
| brcmf_err("pci_set_power_state failed, err=%d\n", err); |
| goto cleanup; |
| } |
| pci_restore_state(pdev); |
| pci_enable_wake(pdev, PCI_D3hot, false); |
| pci_enable_wake(pdev, PCI_D3cold, false); |
| |
| /* Check if device is still up and running, if so we are ready */ |
| if (bus) { |
| devinfo = bus->bus_priv.pcie->devinfo; |
| if (brcmf_pcie_read_reg32(devinfo, |
| BRCMF_PCIE_PCIE2REG_INTMASK) != 0) { |
| if (brcmf_pcie_send_mb_data(devinfo, |
| BRCMF_H2D_HOST_D0_INFORM)) |
| goto cleanup; |
| brcmf_dbg(PCIE, "Hot resume, continue....\n"); |
| brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2); |
| brcmf_bus_change_state(bus, BRCMF_BUS_UP); |
| brcmf_pcie_intr_enable(devinfo); |
| return 0; |
| } |
| } |
| |
| cleanup: |
| if (bus) { |
| devinfo = bus->bus_priv.pcie->devinfo; |
| brcmf_chip_detach(devinfo->ci); |
| devinfo->ci = NULL; |
| brcmf_pcie_remove(pdev); |
| } |
| err = brcmf_pcie_probe(pdev, NULL); |
| if (err) |
| brcmf_err("probe after resume failed, err=%d\n", err); |
| |
| return err; |
| } |
| |
| |
| #endif /* CONFIG_PM */ |
| |
| |
| #define BRCMF_PCIE_DEVICE(dev_id) { BRCM_PCIE_VENDOR_ID_BROADCOM, dev_id,\ |
| PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, 0 } |
| |
| static struct pci_device_id brcmf_pcie_devid_table[] = { |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_4354_DEVICE_ID), |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_4356_DEVICE_ID), |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_43567_DEVICE_ID), |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_43570_DEVICE_ID), |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_DEVICE_ID), |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_2G_DEVICE_ID), |
| BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_5G_DEVICE_ID), |
| { /* end: all zeroes */ } |
| }; |
| |
| |
| MODULE_DEVICE_TABLE(pci, brcmf_pcie_devid_table); |
| |
| |
| static struct pci_driver brcmf_pciedrvr = { |
| .node = {}, |
| .name = KBUILD_MODNAME, |
| .id_table = brcmf_pcie_devid_table, |
| .probe = brcmf_pcie_probe, |
| .remove = brcmf_pcie_remove, |
| #ifdef CONFIG_PM |
| .suspend = brcmf_pcie_suspend, |
| .resume = brcmf_pcie_resume |
| #endif /* CONFIG_PM */ |
| }; |
| |
| |
| void brcmf_pcie_register(void) |
| { |
| int err; |
| |
| brcmf_dbg(PCIE, "Enter\n"); |
| err = pci_register_driver(&brcmf_pciedrvr); |
| if (err) |
| brcmf_err("PCIE driver registration failed, err=%d\n", err); |
| } |
| |
| |
| void brcmf_pcie_exit(void) |
| { |
| brcmf_dbg(PCIE, "Enter\n"); |
| pci_unregister_driver(&brcmf_pciedrvr); |
| } |