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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 | // SPDX-License-Identifier: GPL-2.0-only /* * sst_pci.c - SST (LPE) driver init file for pci enumeration. * * Copyright (C) 2008-14 Intel Corp * Authors: Vinod Koul <vinod.koul@intel.com> * Harsha Priya <priya.harsha@intel.com> * Dharageswari R <dharageswari.r@intel.com> * KP Jeeja <jeeja.kp@intel.com> * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/module.h> #include <linux/pci.h> #include <linux/fs.h> #include <linux/firmware.h> #include <linux/pm_runtime.h> #include <sound/core.h> #include <sound/soc.h> #include <asm/platform_sst_audio.h> #include "../sst-mfld-platform.h" #include "sst.h" static int sst_platform_get_resources(struct intel_sst_drv *ctx) { int ddr_base, ret = 0; struct pci_dev *pci = ctx->pci; ret = pci_request_regions(pci, SST_DRV_NAME); if (ret) return ret; /* map registers */ /* DDR base */ if (ctx->dev_id == SST_MRFLD_PCI_ID) { ctx->ddr_base = pci_resource_start(pci, 0); /* check that the relocated IMR base matches with FW Binary */ ddr_base = relocate_imr_addr_mrfld(ctx->ddr_base); if (!ctx->pdata->lib_info) { dev_err(ctx->dev, "lib_info pointer NULL\n"); ret = -EINVAL; goto do_release_regions; } if (ddr_base != ctx->pdata->lib_info->mod_base) { dev_err(ctx->dev, "FW LSP DDR BASE does not match with IFWI\n"); ret = -EINVAL; goto do_release_regions; } ctx->ddr_end = pci_resource_end(pci, 0); ctx->ddr = pcim_iomap(pci, 0, pci_resource_len(pci, 0)); if (!ctx->ddr) { ret = -EINVAL; goto do_release_regions; } dev_dbg(ctx->dev, "sst: DDR Ptr %p\n", ctx->ddr); } else { ctx->ddr = NULL; } /* SHIM */ ctx->shim_phy_add = pci_resource_start(pci, 1); ctx->shim = pcim_iomap(pci, 1, pci_resource_len(pci, 1)); if (!ctx->shim) { ret = -EINVAL; goto do_release_regions; } dev_dbg(ctx->dev, "SST Shim Ptr %p\n", ctx->shim); /* Shared SRAM */ ctx->mailbox_add = pci_resource_start(pci, 2); ctx->mailbox = pcim_iomap(pci, 2, pci_resource_len(pci, 2)); if (!ctx->mailbox) { ret = -EINVAL; goto do_release_regions; } dev_dbg(ctx->dev, "SRAM Ptr %p\n", ctx->mailbox); /* IRAM */ ctx->iram_end = pci_resource_end(pci, 3); ctx->iram_base = pci_resource_start(pci, 3); ctx->iram = pcim_iomap(pci, 3, pci_resource_len(pci, 3)); if (!ctx->iram) { ret = -EINVAL; goto do_release_regions; } dev_dbg(ctx->dev, "IRAM Ptr %p\n", ctx->iram); /* DRAM */ ctx->dram_end = pci_resource_end(pci, 4); ctx->dram_base = pci_resource_start(pci, 4); ctx->dram = pcim_iomap(pci, 4, pci_resource_len(pci, 4)); if (!ctx->dram) { ret = -EINVAL; goto do_release_regions; } dev_dbg(ctx->dev, "DRAM Ptr %p\n", ctx->dram); do_release_regions: pci_release_regions(pci); return ret; } /* * intel_sst_probe - PCI probe function * * @pci: PCI device structure * @pci_id: PCI device ID structure * */ static int intel_sst_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { int ret = 0; struct intel_sst_drv *sst_drv_ctx; struct sst_platform_info *sst_pdata = pci->dev.platform_data; dev_dbg(&pci->dev, "Probe for DID %x\n", pci->device); ret = sst_alloc_drv_context(&sst_drv_ctx, &pci->dev, pci->device); if (ret < 0) return ret; sst_drv_ctx->pdata = sst_pdata; sst_drv_ctx->irq_num = pci->irq; snprintf(sst_drv_ctx->firmware_name, sizeof(sst_drv_ctx->firmware_name), "%s%04x%s", "fw_sst_", sst_drv_ctx->dev_id, ".bin"); ret = sst_context_init(sst_drv_ctx); if (ret < 0) return ret; /* Init the device */ ret = pcim_enable_device(pci); if (ret) { dev_err(sst_drv_ctx->dev, "device can't be enabled. Returned err: %d\n", ret); goto do_free_drv_ctx; } sst_drv_ctx->pci = pci_dev_get(pci); ret = sst_platform_get_resources(sst_drv_ctx); if (ret < 0) goto do_free_drv_ctx; pci_set_drvdata(pci, sst_drv_ctx); sst_configure_runtime_pm(sst_drv_ctx); return ret; do_free_drv_ctx: sst_context_cleanup(sst_drv_ctx); dev_err(sst_drv_ctx->dev, "Probe failed with %d\n", ret); return ret; } /** * intel_sst_remove - PCI remove function * * @pci: PCI device structure * * This function is called by OS when a device is unloaded * This frees the interrupt etc */ static void intel_sst_remove(struct pci_dev *pci) { struct intel_sst_drv *sst_drv_ctx = pci_get_drvdata(pci); sst_context_cleanup(sst_drv_ctx); pci_dev_put(sst_drv_ctx->pci); pci_release_regions(pci); pci_set_drvdata(pci, NULL); } /* PCI Routines */ static const struct pci_device_id intel_sst_ids[] = { { PCI_VDEVICE(INTEL, SST_MRFLD_PCI_ID), 0}, { 0, } }; static struct pci_driver sst_driver = { .name = SST_DRV_NAME, .id_table = intel_sst_ids, .probe = intel_sst_probe, .remove = intel_sst_remove, #ifdef CONFIG_PM .driver = { .pm = &intel_sst_pm, }, #endif }; module_pci_driver(sst_driver); MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine PCI Driver"); MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); MODULE_AUTHOR("Dharageswari R <dharageswari.r@intel.com>"); MODULE_AUTHOR("KP Jeeja <jeeja.kp@intel.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("sst"); |