wifi: mt76: connac: add support for dsp firmware download

Add FW_START_WORKING_PDA_DSP for the indication of starting DSP
firmware download, which is for phy-related control.
The firmware is transparent to the driver, but it's necessary for the
firmware download process.

Reviewed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
index 7a52b68..ede011e 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
@@ -22,6 +22,7 @@
 
 #define FW_START_OVERRIDE              BIT(0)
 #define FW_START_WORKING_PDA_CR4       BIT(2)
+#define FW_START_WORKING_PDA_DSP       BIT(3)
 
 #define PATCH_SEC_NOT_SUPPORT          GENMASK(31, 0)
 #define PATCH_SEC_TYPE_MASK            GENMASK(15, 0)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
index 88e2f9d..545cc98 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
@@ -2155,7 +2155,7 @@ out:
 static int
 mt7996_mcu_send_ram_firmware(struct mt7996_dev *dev,
                             const struct mt7996_fw_trailer *hdr,
-                            const u8 *data, bool is_wa)
+                            const u8 *data, enum mt7996_ram_type type)
 {
        int i, offset = 0;
        u32 override = 0, option = 0;
@@ -2167,8 +2167,10 @@ mt7996_mcu_send_ram_firmware(struct mt7996_dev *dev,
 
                region = (const struct mt7996_fw_region *)((const u8 *)hdr -
                         (hdr->n_region - i) * sizeof(*region));
+               /* DSP and WA use same mode */
                mode = mt76_connac_mcu_gen_dl_mode(&dev->mt76,
-                                                  region->feature_set, is_wa);
+                                                  region->feature_set,
+                                                  type != MT7996_RAM_TYPE_WM);
                len = le32_to_cpu(region->len);
                addr = le32_to_cpu(region->addr);
 
@@ -2195,19 +2197,22 @@ mt7996_mcu_send_ram_firmware(struct mt7996_dev *dev,
        if (override)
                option |= FW_START_OVERRIDE;
 
-       if (is_wa)
+       if (type == MT7996_RAM_TYPE_WA)
                option |= FW_START_WORKING_PDA_CR4;
+       else if (type == MT7996_RAM_TYPE_DSP)
+               option |= FW_START_WORKING_PDA_DSP;
 
        return mt76_connac_mcu_start_firmware(&dev->mt76, override, option);
 }
 
-static int mt7996_load_ram(struct mt7996_dev *dev)
+static int __mt7996_load_ram(struct mt7996_dev *dev, const char *fw_type,
+                            const char *fw_file, enum mt7996_ram_type ram_type)
 {
        const struct mt7996_fw_trailer *hdr;
        const struct firmware *fw;
        int ret;
 
-       ret = request_firmware(&fw, MT7996_FIRMWARE_WM, dev->mt76.dev);
+       ret = request_firmware(&fw, fw_file, dev->mt76.dev);
        if (ret)
                return ret;
 
@@ -2217,37 +2222,13 @@ static int mt7996_load_ram(struct mt7996_dev *dev)
                goto out;
        }
 
-       hdr = (const struct mt7996_fw_trailer *)(fw->data + fw->size - sizeof(*hdr));
-
-       dev_info(dev->mt76.dev, "WM Firmware Version: %.10s, Build Time: %.15s\n",
-                hdr->fw_ver, hdr->build_date);
+       hdr = (const void *)(fw->data + fw->size - sizeof(*hdr));
+       dev_info(dev->mt76.dev, "%s Firmware Version: %.10s, Build Time: %.15s\n",
+                fw_type, hdr->fw_ver, hdr->build_date);
 
-       ret = mt7996_mcu_send_ram_firmware(dev, hdr, fw->data, false);
+       ret = mt7996_mcu_send_ram_firmware(dev, hdr, fw->data, ram_type);
        if (ret) {
-               dev_err(dev->mt76.dev, "Failed to start WM firmware\n");
-               goto out;
-       }
-
-       release_firmware(fw);
-
-       ret = request_firmware(&fw, MT7996_FIRMWARE_WA, dev->mt76.dev);
-       if (ret)
-               return ret;
-
-       if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
-               dev_err(dev->mt76.dev, "Invalid firmware\n");
-               ret = -EINVAL;
-               goto out;
-       }
-
-       hdr = (const struct mt7996_fw_trailer *)(fw->data + fw->size - sizeof(*hdr));
-
-       dev_info(dev->mt76.dev, "WA Firmware Version: %.10s, Build Time: %.15s\n",
-                hdr->fw_ver, hdr->build_date);
-
-       ret = mt7996_mcu_send_ram_firmware(dev, hdr, fw->data, true);
-       if (ret) {
-               dev_err(dev->mt76.dev, "Failed to start WA firmware\n");
+               dev_err(dev->mt76.dev, "Failed to start %s firmware\n", fw_type);
                goto out;
        }
 
@@ -2261,6 +2242,24 @@ out:
        return ret;
 }
 
+static int mt7996_load_ram(struct mt7996_dev *dev)
+{
+       int ret;
+
+       ret = __mt7996_load_ram(dev, "WM", MT7996_FIRMWARE_WM,
+                               MT7996_RAM_TYPE_WM);
+       if (ret)
+               return ret;
+
+       ret = __mt7996_load_ram(dev, "DSP", MT7996_FIRMWARE_DSP,
+                               MT7996_RAM_TYPE_DSP);
+       if (ret)
+               return ret;
+
+       return __mt7996_load_ram(dev, "WA", MT7996_FIRMWARE_WA,
+                                MT7996_RAM_TYPE_WA);
+}
+
 static int
 mt7996_firmware_state(struct mt7996_dev *dev, bool wa)
 {

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
index fdc443b..ae47412 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
@@ -29,6 +29,7 @@
 
 #define MT7996_FIRMWARE_WA             "mediatek/mt7996/mt7996_wa.bin"
 #define MT7996_FIRMWARE_WM             "mediatek/mt7996/mt7996_wm.bin"
+#define MT7996_FIRMWARE_DSP            "mediatek/mt7996/mt7996_dsp.bin"
 #define MT7996_ROM_PATCH               "mediatek/mt7996/mt7996_rom_patch.bin"
 
 #define MT7996_EEPROM_DEFAULT          "mediatek/mt7996/mt7996_eeprom.bin"
@@ -52,6 +53,12 @@ struct mt7996_sta;
 struct mt7996_dfs_pulse;
 struct mt7996_dfs_pattern;
 
+enum mt7996_ram_type {
+       MT7996_RAM_TYPE_WM,
+       MT7996_RAM_TYPE_WA,
+       MT7996_RAM_TYPE_DSP,
+};
+
 enum mt7996_txq_id {
        MT7996_TXQ_FWDL = 16,
        MT7996_TXQ_MCU_WM,

diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/pci.c b/drivers/net/wireless/mediatek/mt76/mt7996/pci.c
index 64aee3f..c530105 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7996/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/pci.c
@@ -219,4 +219,5 @@ MODULE_DEVICE_TABLE(pci, mt7996_pci_device_table);
 MODULE_DEVICE_TABLE(pci, mt7996_hif_device_table);
 MODULE_FIRMWARE(MT7996_FIRMWARE_WA);
 MODULE_FIRMWARE(MT7996_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7996_FIRMWARE_DSP);
 MODULE_FIRMWARE(MT7996_ROM_PATCH);