From 948c7ca03c14d9dd5ece5866dc1ab49f95613ad6 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Sat, 6 Jan 2018 16:23:28 +0000 Subject: Bluetooth: btintel: make array 'param' static, shrinks object size Don't populate the const read-only array 'param' on the stack but instead make it static. Makes the object code smaller by nearly 20 bytes: Before: text data bss dec hex filename 11605 2629 64 14298 37da linux/drivers/bluetooth/btintel.o After: text data bss dec hex filename 11531 2685 64 14280 37c8 linux/drivers/bluetooth/btintel.o (gcc version 7.2.0 x86_64) Signed-off-by: Colin Ian King Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btintel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/bluetooth/btintel.c') diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 4459555c9d88..07f00e422e85 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -75,7 +75,7 @@ EXPORT_SYMBOL_GPL(btintel_check_bdaddr); int btintel_enter_mfg(struct hci_dev *hdev) { - const u8 param[] = { 0x01, 0x00 }; + static const u8 param[] = { 0x01, 0x00 }; struct sk_buff *skb; skb = __hci_cmd_sync(hdev, 0xfc11, 2, param, HCI_CMD_TIMEOUT); -- cgit v1.2.3 From e5889af62fce081dbd2e5d087683b9b7135bc731 Mon Sep 17 00:00:00 2001 From: Tedd Ho-Jeong An Date: Wed, 24 Jan 2018 09:19:18 -0800 Subject: Bluetooth: btintel: Create common function for Intel Reset The Intel_Reset command is used to reset the device after downloading the firmware and this is Intel generic command used in both USB and UART. Signed-off-by: Tedd Ho-Jeong An Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btintel.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/bluetooth/btintel.c') diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 07f00e422e85..c8aaed16f858 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -569,6 +569,26 @@ struct regmap *btintel_regmap_init(struct hci_dev *hdev, u16 opcode_read, } EXPORT_SYMBOL_GPL(btintel_regmap_init); +int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param) +{ + struct intel_reset params = { 0x00, 0x01, 0x00, 0x01, 0x00000000 }; + struct sk_buff *skb; + + params.boot_param = cpu_to_le32(boot_param); + + skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(params), ¶ms, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "Failed to send Intel Reset command"); + return PTR_ERR(skb); + } + + kfree_skb(skb); + + return 0; +} +EXPORT_SYMBOL_GPL(btintel_send_intel_reset); + MODULE_AUTHOR("Marcel Holtmann "); MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION); MODULE_VERSION(VERSION); -- cgit v1.2.3 From faf174d297134ad071f528a9db787b4c95734b40 Mon Sep 17 00:00:00 2001 From: Tedd Ho-Jeong An Date: Wed, 24 Jan 2018 09:19:20 -0800 Subject: Bluetooth: btintel: Create common Intel Read Boot Params function The Intel_Read_Boot_Params command is used to read boot parameters from the bootloader and this is Intel generic command used in USB and UART drivers. Signed-off-by: Tedd Ho-Jeong An Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btintel.c | 51 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) (limited to 'drivers/bluetooth/btintel.c') diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index c8aaed16f858..da47f6dccd38 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -589,6 +589,57 @@ int btintel_send_intel_reset(struct hci_dev *hdev, u32 boot_param) } EXPORT_SYMBOL_GPL(btintel_send_intel_reset); +int btintel_read_boot_params(struct hci_dev *hdev, + struct intel_boot_params *params) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "Reading Intel boot parameters failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + + if (skb->len != sizeof(*params)) { + bt_dev_err(hdev, "Intel boot parameters size mismatch"); + kfree_skb(skb); + return -EILSEQ; + } + + memcpy(params, skb->data, sizeof(*params)); + + kfree_skb(skb); + + if (params->status) { + bt_dev_err(hdev, "Intel boot parameters command failed (%02x)", + params->status); + return -bt_to_errno(params->status); + } + + bt_dev_info(hdev, "Device revision is %u", + le16_to_cpu(params->dev_revid)); + + bt_dev_info(hdev, "Secure boot is %s", + params->secure_boot ? "enabled" : "disabled"); + + bt_dev_info(hdev, "OTP lock is %s", + params->otp_lock ? "enabled" : "disabled"); + + bt_dev_info(hdev, "API lock is %s", + params->api_lock ? "enabled" : "disabled"); + + bt_dev_info(hdev, "Debug lock is %s", + params->debug_lock ? "enabled" : "disabled"); + + bt_dev_info(hdev, "Minimum firmware build %u week %u %u", + params->min_fw_build_nn, params->min_fw_build_cw, + 2000 + params->min_fw_build_yy); + + return 0; +} +EXPORT_SYMBOL_GPL(btintel_read_boot_params); + MODULE_AUTHOR("Marcel Holtmann "); MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION); MODULE_VERSION(VERSION); -- cgit v1.2.3 From fbbe83c52bc0d52398de72d7df1857cc9b36244e Mon Sep 17 00:00:00 2001 From: Tedd Ho-Jeong An Date: Wed, 24 Jan 2018 09:19:21 -0800 Subject: Bluetooth: btintel: Create common function for firmware download The firmware download flow for RAM SKU is same for both USB and UART and this patch creates a common function for both driver. Signed-off-by: Tedd Ho-Jeong An Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btintel.c | 84 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) (limited to 'drivers/bluetooth/btintel.c') diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index da47f6dccd38..5270d5513201 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -640,6 +641,89 @@ int btintel_read_boot_params(struct hci_dev *hdev, } EXPORT_SYMBOL_GPL(btintel_read_boot_params); +int btintel_download_firmware(struct hci_dev *hdev, const struct firmware *fw, + u32 *boot_param) +{ + int err; + const u8 *fw_ptr; + u32 frag_len; + + /* Start the firmware download transaction with the Init fragment + * represented by the 128 bytes of CSS header. + */ + err = btintel_secure_send(hdev, 0x00, 128, fw->data); + if (err < 0) { + bt_dev_err(hdev, "Failed to send firmware header (%d)", err); + goto done; + } + + /* Send the 256 bytes of public key information from the firmware + * as the PKey fragment. + */ + err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); + if (err < 0) { + bt_dev_err(hdev, "Failed to send firmware pkey (%d)", err); + goto done; + } + + /* Send the 256 bytes of signature information from the firmware + * as the Sign fragment. + */ + err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); + if (err < 0) { + bt_dev_err(hdev, "Failed to send firmware signature (%d)", err); + goto done; + } + + fw_ptr = fw->data + 644; + frag_len = 0; + + while (fw_ptr - fw->data < fw->size) { + struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); + + /* Each SKU has a different reset parameter to use in the + * HCI_Intel_Reset command and it is embedded in the firmware + * data. So, instead of using static value per SKU, check + * the firmware data and save it for later use. + */ + if (le16_to_cpu(cmd->opcode) == 0xfc0e) { + /* The boot parameter is the first 32-bit value + * and rest of 3 octets are reserved. + */ + *boot_param = get_unaligned_le32(fw_ptr + sizeof(*cmd)); + + bt_dev_dbg(hdev, "boot_param=0x%x", *boot_param); + } + + frag_len += sizeof(*cmd) + cmd->plen; + + /* The parameter length of the secure send command requires + * a 4 byte alignment. It happens so that the firmware file + * contains proper Intel_NOP commands to align the fragments + * as needed. + * + * Send set of commands with 4 byte alignment from the + * firmware data buffer as a single Data fragement. + */ + if (!(frag_len % 4)) { + err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); + if (err < 0) { + bt_dev_err(hdev, + "Failed to send firmware data (%d)", + err); + goto done; + } + + fw_ptr += frag_len; + frag_len = 0; + } + } + +done: + return err; +} +EXPORT_SYMBOL_GPL(btintel_download_firmware); + MODULE_AUTHOR("Marcel Holtmann "); MODULE_DESCRIPTION("Bluetooth support for Intel devices ver " VERSION); MODULE_VERSION(VERSION); -- cgit v1.2.3