[2/3] Bluetooth: btrtl: add support for the RTL8723CS
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Message ID 20200705195110.405139-3-anarsoul@gmail.com
State New
Headers show
Series
  • arm64: allwinner: a64: add bluetooth support for Pinebook
Related show

Commit Message

Vasily Khoruzhick July 5, 2020, 7:51 p.m. UTC
The Realtek RTL8723CS is SDIO WiFi chip. It also contains a Bluetooth
module which is connected via UART to the host.

It shares lmp subversion with 8703B, so Realtek's userspace
initialization tool (rtk_hciattach) differentiates varieties of RTL8723CS
(CG, VF, XX) with RTL8703B using vendor's command to read chip type.

Also this chip declares support for some features it doesn't support
so add a quirk to indicate that these features are broken.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
---
 drivers/bluetooth/btrtl.c  | 128 ++++++++++++++++++++++++++++++++++++-
 drivers/bluetooth/btrtl.h  |  12 ++++
 drivers/bluetooth/hci_h5.c |   6 ++
 3 files changed, 143 insertions(+), 3 deletions(-)

Comments

Marcel Holtmann July 7, 2020, 4:01 p.m. UTC | #1
Hi Vasily,

> The Realtek RTL8723CS is SDIO WiFi chip. It also contains a Bluetooth
> module which is connected via UART to the host.
> 
> It shares lmp subversion with 8703B, so Realtek's userspace
> initialization tool (rtk_hciattach) differentiates varieties of RTL8723CS
> (CG, VF, XX) with RTL8703B using vendor's command to read chip type.
> 
> Also this chip declares support for some features it doesn't support
> so add a quirk to indicate that these features are broken.
> 
> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> ---
> drivers/bluetooth/btrtl.c  | 128 ++++++++++++++++++++++++++++++++++++-
> drivers/bluetooth/btrtl.h  |  12 ++++
> drivers/bluetooth/hci_h5.c |   6 ++
> 3 files changed, 143 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
> index 3a9afc905f24..8c7b35abe492 100644
> --- a/drivers/bluetooth/btrtl.c
> +++ b/drivers/bluetooth/btrtl.c
> @@ -17,8 +17,12 @@
> 
> #define VERSION "0.1"
> 
> +#define RTL_CHIP_8723CS_CG	3
> +#define RTL_CHIP_8723CS_VF	4
> +#define RTL_CHIP_8723CS_XX	5
> #define RTL_EPATCH_SIGNATURE	"Realtech"
> #define RTL_ROM_LMP_3499	0x3499
> +#define RTL_ROM_LMP_8703B	0x8703
> #define RTL_ROM_LMP_8723A	0x1200
> #define RTL_ROM_LMP_8723B	0x8723
> #define RTL_ROM_LMP_8723D	0x8873
> @@ -31,6 +35,7 @@
> #define IC_MATCH_FL_HCIREV	(1 << 1)
> #define IC_MATCH_FL_HCIVER	(1 << 2)
> #define IC_MATCH_FL_HCIBUS	(1 << 3)
> +#define IC_MATCH_FL_CHIP_TYPE	(1 << 4)
> #define IC_INFO(lmps, hcir) \
> 	.match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV, \
> 	.lmp_subver = (lmps), \
> @@ -42,6 +47,7 @@ struct id_table {
> 	__u16 hci_rev;
> 	__u8 hci_ver;
> 	__u8 hci_bus;
> +	__u8 chip_type;
> 	bool config_needed;
> 	bool has_rom_version;
> 	char *fw_name;
> @@ -89,6 +95,39 @@ static const struct id_table ic_id_table[] = {
> 	  .fw_name  = "rtl_bt/rtl8723b_fw.bin",
> 	  .cfg_name = "rtl_bt/rtl8723b_config" },
> 
> +	/* 8723CS-CG */
> +	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
> +			 IC_MATCH_FL_HCIBUS,
> +	  .lmp_subver = RTL_ROM_LMP_8703B,
> +	  .chip_type = RTL_CHIP_8723CS_CG,
> +	  .hci_bus = HCI_UART,
> +	  .config_needed = true,
> +	  .has_rom_version = true,
> +	  .fw_name  = "rtl_bt/rtl8723cs_cg_fw.bin",
> +	  .cfg_name = "rtl_bt/rtl8723cs_cg_config" },
> +
> +	/* 8723CS-VF */
> +	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
> +			 IC_MATCH_FL_HCIBUS,
> +	  .lmp_subver = RTL_ROM_LMP_8703B,
> +	  .chip_type = RTL_CHIP_8723CS_VF,
> +	  .hci_bus = HCI_UART,
> +	  .config_needed = true,
> +	  .has_rom_version = true,
> +	  .fw_name  = "rtl_bt/rtl8723cs_vf_fw.bin",
> +	  .cfg_name = "rtl_bt/rtl8723cs_vf_config" },
> +
> +	/* 8723CS-XX */
> +	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
> +			 IC_MATCH_FL_HCIBUS,
> +	  .lmp_subver = RTL_ROM_LMP_8703B,
> +	  .chip_type = RTL_CHIP_8723CS_XX,
> +	  .hci_bus = HCI_UART,
> +	  .config_needed = true,
> +	  .has_rom_version = true,
> +	  .fw_name  = "rtl_bt/rtl8723cs_xx_fw.bin",
> +	  .cfg_name = "rtl_bt/rtl8723cs_xx_config" },
> +
> 	/* 8723D */
> 	{ IC_INFO(RTL_ROM_LMP_8723B, 0xd),
> 	  .config_needed = true,
> @@ -171,7 +210,8 @@ static const struct id_table ic_id_table[] = {
> 	};
> 
> static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
> -					     u8 hci_ver, u8 hci_bus)
> +					     u8 hci_ver, u8 hci_bus,
> +					     u8 chip_type)
> {
> 	int i;
> 
> @@ -188,6 +228,9 @@ static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
> 		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) &&
> 		    (ic_id_table[i].hci_bus != hci_bus))
> 			continue;
> +		if ((ic_id_table[i].match_flags & IC_MATCH_FL_CHIP_TYPE) &&
> +		    (ic_id_table[i].chip_type != chip_type))
> +			continue;
> 
> 		break;
> 	}
> @@ -270,6 +313,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
> 		{ RTL_ROM_LMP_8723B, 1 },
> 		{ RTL_ROM_LMP_8821A, 2 },
> 		{ RTL_ROM_LMP_8761A, 3 },
> +		{ RTL_ROM_LMP_8703B, 7 },
> 		{ RTL_ROM_LMP_8822B, 8 },
> 		{ RTL_ROM_LMP_8723B, 9 },	/* 8723D */
> 		{ RTL_ROM_LMP_8821A, 10 },	/* 8821C */
> @@ -545,6 +589,48 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
> 	return ret;
> }
> 
> +static bool rtl_has_chip_type(u16 lmp_subver)
> +{
> +	switch (lmp_subver) {
> +	case RTL_ROM_LMP_8703B:
> +		return true;
> +	default:
> +		break;
> +	}
> +
> +	return  false;
> +}
> +
> +static int rtl_read_chip_type(struct hci_dev *hdev, u8 *type)
> +{
> +	struct rtl_chip_type_evt *chip_type;
> +	struct sk_buff *skb;
> +	const unsigned char cmd_buf[] = {0x00, 0x94, 0xa0, 0x00, 0xb0};
> +
> +	/* Read RTL chip type command */
> +	skb = __hci_cmd_sync(hdev, 0xfc61, 5, cmd_buf, HCI_INIT_TIMEOUT);
> +	if (IS_ERR(skb)) {
> +		rtl_dev_err(hdev, "Read chip type failed (%ld)",
> +			    PTR_ERR(skb));
> +		return PTR_ERR(skb);
> +	}
> +
> +	if (skb->len != sizeof(*chip_type)) {
> +		rtl_dev_err(hdev, "RTL chip type event length mismatch");
> +		kfree_skb(skb);
> +		return -EIO;
> +	}
> +
> +	chip_type = (struct rtl_chip_type_evt *)skb->data;
> +	rtl_dev_info(hdev, "chip_type status=%x type=%x",
> +		     chip_type->status, chip_type->type);
> +
> +	*type = chip_type->type & 0x0f;
> +
> +	kfree_skb(skb);
> +	return 0;
> +}
> +
> void btrtl_free(struct btrtl_device_info *btrtl_dev)
> {
> 	kvfree(btrtl_dev->fw_data);
> @@ -561,7 +647,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
> 	struct hci_rp_read_local_version *resp;
> 	char cfg_name[40];
> 	u16 hci_rev, lmp_subver;
> -	u8 hci_ver;
> +	u8 hci_ver, chip_type = 0;
> 	int ret;
> 
> 	btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
> @@ -586,8 +672,14 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
> 	lmp_subver = le16_to_cpu(resp->lmp_subver);
> 	kfree_skb(skb);
> 
> +	if (rtl_has_chip_type(lmp_subver)) {
> +		ret = rtl_read_chip_type(hdev, &chip_type);
> +		if (ret)
> +			goto err_free;
> +	}
> +
> 	btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver,
> -					    hdev->bus);
> +					    hdev->bus, chip_type);
> 
> 	if (!btrtl_dev->ic_info) {
> 		rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
> @@ -660,6 +752,7 @@ int btrtl_download_firmware(struct hci_dev *hdev,
> 	case RTL_ROM_LMP_8821A:
> 	case RTL_ROM_LMP_8761A:
> 	case RTL_ROM_LMP_8822B:
> +	case RTL_ROM_LMP_8703B:
> 		return btrtl_setup_rtl8723b(hdev, btrtl_dev);
> 	default:
> 		rtl_dev_info(hdev, "assuming no firmware upload needed");
> @@ -678,7 +771,12 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
> 		return PTR_ERR(btrtl_dev);
> 
> 	ret = btrtl_download_firmware(hdev, btrtl_dev);
> +	if (ret)
> +		goto out_free;
> 
> +	btrtl_apply_quirks(hdev, btrtl_dev);
> +
> +out_free:
> 	btrtl_free(btrtl_dev);
> 
> 	/* Enable controller to do both LE scan and BR/EDR inquiry
> @@ -818,6 +916,24 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
> }
> EXPORT_SYMBOL_GPL(btrtl_get_uart_settings);
> 
> +void btrtl_apply_quirks(struct hci_dev *hdev,
> +			struct btrtl_device_info *btrtl_dev)
> +{
> +	switch (btrtl_dev->ic_info->lmp_subver) {
> +	case RTL_ROM_LMP_8703B:
> +		/* 8723CS reports two pages for local ext features,
> +		 * but it doesn't support any features from page 2 -
> +		 * it either responds with garbage or with error status
> +		 */
> +		set_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FTR_MAX_PAGE,
> +			&hdev->quirks);
> +		break;
> +	default:
> +		break;
> +	}
> +}
> +EXPORT_SYMBOL_GPL(btrtl_apply_quirks);
> +
> MODULE_AUTHOR("Daniel Drake <drake@endlessm.com>");
> MODULE_DESCRIPTION("Bluetooth support for Realtek devices ver " VERSION);
> MODULE_VERSION(VERSION);
> @@ -827,6 +943,12 @@ MODULE_FIRMWARE("rtl_bt/rtl8723b_fw.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8723b_config.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8723bs_fw.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8723bs_config.bin");
> +MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_fw.bin");
> +MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_config.bin");
> +MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_fw.bin");
> +MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_config.bin");
> +MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_fw.bin");
> +MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_config.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8723ds_fw.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8723ds_config.bin");
> MODULE_FIRMWARE("rtl_bt/rtl8761a_fw.bin");
> diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h
> index 2a582682136d..152ed2ece4c2 100644
> --- a/drivers/bluetooth/btrtl.h
> +++ b/drivers/bluetooth/btrtl.h
> @@ -14,6 +14,11 @@
> 
> struct btrtl_device_info;
> 
> +struct rtl_chip_type_evt {
> +	__u8 status;
> +	__u8 type;
> +} __packed;
> +
> struct rtl_download_cmd {
> 	__u8 index;
> 	__u8 data[RTL_FRAG_LEN];
> @@ -60,6 +65,8 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
> 			    struct btrtl_device_info *btrtl_dev,
> 			    unsigned int *controller_baudrate,
> 			    u32 *device_baudrate, bool *flow_control);
> +void btrtl_apply_quirks(struct hci_dev *hdev,
> +			struct btrtl_device_info *btrtl_dev);
> 
> #else
> 
> @@ -96,6 +103,11 @@ static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
> 					  bool *flow_control)
> {
> 	return -ENOENT;
> +
> +static inline void btrtl_apply_quirks(struct hci_dev *hdev,
> +			struct btrtl_device_info *btrtl_dev)
> +{
> +}
> }

this hunk is fundamentally broken.

Regards

Marcel
kernel test robot July 7, 2020, 11:17 p.m. UTC | #2
Hi Vasily,

I love your patch! Yet something to improve:

[auto build test ERROR on bluetooth-next/master]
[also build test ERROR on sunxi/sunxi/for-next v5.8-rc4 next-20200707]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use  as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Vasily-Khoruzhick/arm64-allwinner-a64-add-bluetooth-support-for-Pinebook/20200706-035246
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: powerpc64-randconfig-r005-20200707 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 02946de3802d3bc65bc9f2eb9b8d4969b5a7add8)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install powerpc64 cross compiling tool for clang build
        # apt-get install binutils-powerpc64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from drivers/bluetooth/hci_h5.c:21:
>> drivers/bluetooth/btrtl.h:109:1: error: function definition is not allowed here
   {
   ^
   1 error generated.

vim +109 drivers/bluetooth/btrtl.h

    98	
    99	static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
   100						  struct btrtl_device_info *btrtl_dev,
   101						  unsigned int *controller_baudrate,
   102						  u32 *device_baudrate,
   103						  bool *flow_control)
   104	{
   105		return -ENOENT;
   106	
   107	static inline void btrtl_apply_quirks(struct hci_dev *hdev,
   108				struct btrtl_device_info *btrtl_dev)
 > 109	{
   110	}
   111	}
   112	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Vasily Khoruzhick July 13, 2020, 5:07 a.m. UTC | #3
On Tue, Jul 7, 2020 at 9:01 AM Marcel Holtmann <marcel@holtmann.org> wrote:
>
> Hi Vasily,
>
> > The Realtek RTL8723CS is SDIO WiFi chip. It also contains a Bluetooth
> > module which is connected via UART to the host.
> >
> > It shares lmp subversion with 8703B, so Realtek's userspace
> > initialization tool (rtk_hciattach) differentiates varieties of RTL8723CS
> > (CG, VF, XX) with RTL8703B using vendor's command to read chip type.
> >
> > Also this chip declares support for some features it doesn't support
> > so add a quirk to indicate that these features are broken.
> >
> > Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
> > ---
> > drivers/bluetooth/btrtl.c  | 128 ++++++++++++++++++++++++++++++++++++-
> > drivers/bluetooth/btrtl.h  |  12 ++++
> > drivers/bluetooth/hci_h5.c |   6 ++
> > 3 files changed, 143 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
> > index 3a9afc905f24..8c7b35abe492 100644
> > --- a/drivers/bluetooth/btrtl.c
> > +++ b/drivers/bluetooth/btrtl.c
> > @@ -17,8 +17,12 @@
> >
> > #define VERSION "0.1"
> >
> > +#define RTL_CHIP_8723CS_CG   3
> > +#define RTL_CHIP_8723CS_VF   4
> > +#define RTL_CHIP_8723CS_XX   5
> > #define RTL_EPATCH_SIGNATURE  "Realtech"
> > #define RTL_ROM_LMP_3499      0x3499
> > +#define RTL_ROM_LMP_8703B    0x8703
> > #define RTL_ROM_LMP_8723A     0x1200
> > #define RTL_ROM_LMP_8723B     0x8723
> > #define RTL_ROM_LMP_8723D     0x8873
> > @@ -31,6 +35,7 @@
> > #define IC_MATCH_FL_HCIREV    (1 << 1)
> > #define IC_MATCH_FL_HCIVER    (1 << 2)
> > #define IC_MATCH_FL_HCIBUS    (1 << 3)
> > +#define IC_MATCH_FL_CHIP_TYPE        (1 << 4)
> > #define IC_INFO(lmps, hcir) \
> >       .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV, \
> >       .lmp_subver = (lmps), \
> > @@ -42,6 +47,7 @@ struct id_table {
> >       __u16 hci_rev;
> >       __u8 hci_ver;
> >       __u8 hci_bus;
> > +     __u8 chip_type;
> >       bool config_needed;
> >       bool has_rom_version;
> >       char *fw_name;
> > @@ -89,6 +95,39 @@ static const struct id_table ic_id_table[] = {
> >         .fw_name  = "rtl_bt/rtl8723b_fw.bin",
> >         .cfg_name = "rtl_bt/rtl8723b_config" },
> >
> > +     /* 8723CS-CG */
> > +     { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
> > +                      IC_MATCH_FL_HCIBUS,
> > +       .lmp_subver = RTL_ROM_LMP_8703B,
> > +       .chip_type = RTL_CHIP_8723CS_CG,
> > +       .hci_bus = HCI_UART,
> > +       .config_needed = true,
> > +       .has_rom_version = true,
> > +       .fw_name  = "rtl_bt/rtl8723cs_cg_fw.bin",
> > +       .cfg_name = "rtl_bt/rtl8723cs_cg_config" },
> > +
> > +     /* 8723CS-VF */
> > +     { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
> > +                      IC_MATCH_FL_HCIBUS,
> > +       .lmp_subver = RTL_ROM_LMP_8703B,
> > +       .chip_type = RTL_CHIP_8723CS_VF,
> > +       .hci_bus = HCI_UART,
> > +       .config_needed = true,
> > +       .has_rom_version = true,
> > +       .fw_name  = "rtl_bt/rtl8723cs_vf_fw.bin",
> > +       .cfg_name = "rtl_bt/rtl8723cs_vf_config" },
> > +
> > +     /* 8723CS-XX */
> > +     { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
> > +                      IC_MATCH_FL_HCIBUS,
> > +       .lmp_subver = RTL_ROM_LMP_8703B,
> > +       .chip_type = RTL_CHIP_8723CS_XX,
> > +       .hci_bus = HCI_UART,
> > +       .config_needed = true,
> > +       .has_rom_version = true,
> > +       .fw_name  = "rtl_bt/rtl8723cs_xx_fw.bin",
> > +       .cfg_name = "rtl_bt/rtl8723cs_xx_config" },
> > +
> >       /* 8723D */
> >       { IC_INFO(RTL_ROM_LMP_8723B, 0xd),
> >         .config_needed = true,
> > @@ -171,7 +210,8 @@ static const struct id_table ic_id_table[] = {
> >       };
> >
> > static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
> > -                                          u8 hci_ver, u8 hci_bus)
> > +                                          u8 hci_ver, u8 hci_bus,
> > +                                          u8 chip_type)
> > {
> >       int i;
> >
> > @@ -188,6 +228,9 @@ static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
> >               if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) &&
> >                   (ic_id_table[i].hci_bus != hci_bus))
> >                       continue;
> > +             if ((ic_id_table[i].match_flags & IC_MATCH_FL_CHIP_TYPE) &&
> > +                 (ic_id_table[i].chip_type != chip_type))
> > +                     continue;
> >
> >               break;
> >       }
> > @@ -270,6 +313,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
> >               { RTL_ROM_LMP_8723B, 1 },
> >               { RTL_ROM_LMP_8821A, 2 },
> >               { RTL_ROM_LMP_8761A, 3 },
> > +             { RTL_ROM_LMP_8703B, 7 },
> >               { RTL_ROM_LMP_8822B, 8 },
> >               { RTL_ROM_LMP_8723B, 9 },       /* 8723D */
> >               { RTL_ROM_LMP_8821A, 10 },      /* 8821C */
> > @@ -545,6 +589,48 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
> >       return ret;
> > }
> >
> > +static bool rtl_has_chip_type(u16 lmp_subver)
> > +{
> > +     switch (lmp_subver) {
> > +     case RTL_ROM_LMP_8703B:
> > +             return true;
> > +     default:
> > +             break;
> > +     }
> > +
> > +     return  false;
> > +}
> > +
> > +static int rtl_read_chip_type(struct hci_dev *hdev, u8 *type)
> > +{
> > +     struct rtl_chip_type_evt *chip_type;
> > +     struct sk_buff *skb;
> > +     const unsigned char cmd_buf[] = {0x00, 0x94, 0xa0, 0x00, 0xb0};
> > +
> > +     /* Read RTL chip type command */
> > +     skb = __hci_cmd_sync(hdev, 0xfc61, 5, cmd_buf, HCI_INIT_TIMEOUT);
> > +     if (IS_ERR(skb)) {
> > +             rtl_dev_err(hdev, "Read chip type failed (%ld)",
> > +                         PTR_ERR(skb));
> > +             return PTR_ERR(skb);
> > +     }
> > +
> > +     if (skb->len != sizeof(*chip_type)) {
> > +             rtl_dev_err(hdev, "RTL chip type event length mismatch");
> > +             kfree_skb(skb);
> > +             return -EIO;
> > +     }
> > +
> > +     chip_type = (struct rtl_chip_type_evt *)skb->data;
> > +     rtl_dev_info(hdev, "chip_type status=%x type=%x",
> > +                  chip_type->status, chip_type->type);
> > +
> > +     *type = chip_type->type & 0x0f;
> > +
> > +     kfree_skb(skb);
> > +     return 0;
> > +}
> > +
> > void btrtl_free(struct btrtl_device_info *btrtl_dev)
> > {
> >       kvfree(btrtl_dev->fw_data);
> > @@ -561,7 +647,7 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
> >       struct hci_rp_read_local_version *resp;
> >       char cfg_name[40];
> >       u16 hci_rev, lmp_subver;
> > -     u8 hci_ver;
> > +     u8 hci_ver, chip_type = 0;
> >       int ret;
> >
> >       btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
> > @@ -586,8 +672,14 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
> >       lmp_subver = le16_to_cpu(resp->lmp_subver);
> >       kfree_skb(skb);
> >
> > +     if (rtl_has_chip_type(lmp_subver)) {
> > +             ret = rtl_read_chip_type(hdev, &chip_type);
> > +             if (ret)
> > +                     goto err_free;
> > +     }
> > +
> >       btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver,
> > -                                         hdev->bus);
> > +                                         hdev->bus, chip_type);
> >
> >       if (!btrtl_dev->ic_info) {
> >               rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
> > @@ -660,6 +752,7 @@ int btrtl_download_firmware(struct hci_dev *hdev,
> >       case RTL_ROM_LMP_8821A:
> >       case RTL_ROM_LMP_8761A:
> >       case RTL_ROM_LMP_8822B:
> > +     case RTL_ROM_LMP_8703B:
> >               return btrtl_setup_rtl8723b(hdev, btrtl_dev);
> >       default:
> >               rtl_dev_info(hdev, "assuming no firmware upload needed");
> > @@ -678,7 +771,12 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
> >               return PTR_ERR(btrtl_dev);
> >
> >       ret = btrtl_download_firmware(hdev, btrtl_dev);
> > +     if (ret)
> > +             goto out_free;
> >
> > +     btrtl_apply_quirks(hdev, btrtl_dev);
> > +
> > +out_free:
> >       btrtl_free(btrtl_dev);
> >
> >       /* Enable controller to do both LE scan and BR/EDR inquiry
> > @@ -818,6 +916,24 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
> > }
> > EXPORT_SYMBOL_GPL(btrtl_get_uart_settings);
> >
> > +void btrtl_apply_quirks(struct hci_dev *hdev,
> > +                     struct btrtl_device_info *btrtl_dev)
> > +{
> > +     switch (btrtl_dev->ic_info->lmp_subver) {
> > +     case RTL_ROM_LMP_8703B:
> > +             /* 8723CS reports two pages for local ext features,
> > +              * but it doesn't support any features from page 2 -
> > +              * it either responds with garbage or with error status
> > +              */
> > +             set_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FTR_MAX_PAGE,
> > +                     &hdev->quirks);
> > +             break;
> > +     default:
> > +             break;
> > +     }
> > +}
> > +EXPORT_SYMBOL_GPL(btrtl_apply_quirks);
> > +
> > MODULE_AUTHOR("Daniel Drake <drake@endlessm.com>");
> > MODULE_DESCRIPTION("Bluetooth support for Realtek devices ver " VERSION);
> > MODULE_VERSION(VERSION);
> > @@ -827,6 +943,12 @@ MODULE_FIRMWARE("rtl_bt/rtl8723b_fw.bin");
> > MODULE_FIRMWARE("rtl_bt/rtl8723b_config.bin");
> > MODULE_FIRMWARE("rtl_bt/rtl8723bs_fw.bin");
> > MODULE_FIRMWARE("rtl_bt/rtl8723bs_config.bin");
> > +MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_fw.bin");
> > +MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_config.bin");
> > +MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_fw.bin");
> > +MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_config.bin");
> > +MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_fw.bin");
> > +MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_config.bin");
> > MODULE_FIRMWARE("rtl_bt/rtl8723ds_fw.bin");
> > MODULE_FIRMWARE("rtl_bt/rtl8723ds_config.bin");
> > MODULE_FIRMWARE("rtl_bt/rtl8761a_fw.bin");
> > diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h
> > index 2a582682136d..152ed2ece4c2 100644
> > --- a/drivers/bluetooth/btrtl.h
> > +++ b/drivers/bluetooth/btrtl.h
> > @@ -14,6 +14,11 @@
> >
> > struct btrtl_device_info;
> >
> > +struct rtl_chip_type_evt {
> > +     __u8 status;
> > +     __u8 type;
> > +} __packed;
> > +
> > struct rtl_download_cmd {
> >       __u8 index;
> >       __u8 data[RTL_FRAG_LEN];
> > @@ -60,6 +65,8 @@ int btrtl_get_uart_settings(struct hci_dev *hdev,
> >                           struct btrtl_device_info *btrtl_dev,
> >                           unsigned int *controller_baudrate,
> >                           u32 *device_baudrate, bool *flow_control);
> > +void btrtl_apply_quirks(struct hci_dev *hdev,
> > +                     struct btrtl_device_info *btrtl_dev);
> >
> > #else
> >
> > @@ -96,6 +103,11 @@ static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
> >                                         bool *flow_control)
> > {
> >       return -ENOENT;
> > +
> > +static inline void btrtl_apply_quirks(struct hci_dev *hdev,
> > +                     struct btrtl_device_info *btrtl_dev)
> > +{
> > +}
> > }
>
> this hunk is fundamentally broken.

Will fix in v2

> Regards
>
> Marcel
>

Patch
diff mbox series

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 3a9afc905f24..8c7b35abe492 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -17,8 +17,12 @@ 
 
 #define VERSION "0.1"
 
+#define RTL_CHIP_8723CS_CG	3
+#define RTL_CHIP_8723CS_VF	4
+#define RTL_CHIP_8723CS_XX	5
 #define RTL_EPATCH_SIGNATURE	"Realtech"
 #define RTL_ROM_LMP_3499	0x3499
+#define RTL_ROM_LMP_8703B	0x8703
 #define RTL_ROM_LMP_8723A	0x1200
 #define RTL_ROM_LMP_8723B	0x8723
 #define RTL_ROM_LMP_8723D	0x8873
@@ -31,6 +35,7 @@ 
 #define IC_MATCH_FL_HCIREV	(1 << 1)
 #define IC_MATCH_FL_HCIVER	(1 << 2)
 #define IC_MATCH_FL_HCIBUS	(1 << 3)
+#define IC_MATCH_FL_CHIP_TYPE	(1 << 4)
 #define IC_INFO(lmps, hcir) \
 	.match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV, \
 	.lmp_subver = (lmps), \
@@ -42,6 +47,7 @@  struct id_table {
 	__u16 hci_rev;
 	__u8 hci_ver;
 	__u8 hci_bus;
+	__u8 chip_type;
 	bool config_needed;
 	bool has_rom_version;
 	char *fw_name;
@@ -89,6 +95,39 @@  static const struct id_table ic_id_table[] = {
 	  .fw_name  = "rtl_bt/rtl8723b_fw.bin",
 	  .cfg_name = "rtl_bt/rtl8723b_config" },
 
+	/* 8723CS-CG */
+	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
+			 IC_MATCH_FL_HCIBUS,
+	  .lmp_subver = RTL_ROM_LMP_8703B,
+	  .chip_type = RTL_CHIP_8723CS_CG,
+	  .hci_bus = HCI_UART,
+	  .config_needed = true,
+	  .has_rom_version = true,
+	  .fw_name  = "rtl_bt/rtl8723cs_cg_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8723cs_cg_config" },
+
+	/* 8723CS-VF */
+	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
+			 IC_MATCH_FL_HCIBUS,
+	  .lmp_subver = RTL_ROM_LMP_8703B,
+	  .chip_type = RTL_CHIP_8723CS_VF,
+	  .hci_bus = HCI_UART,
+	  .config_needed = true,
+	  .has_rom_version = true,
+	  .fw_name  = "rtl_bt/rtl8723cs_vf_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8723cs_vf_config" },
+
+	/* 8723CS-XX */
+	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_CHIP_TYPE |
+			 IC_MATCH_FL_HCIBUS,
+	  .lmp_subver = RTL_ROM_LMP_8703B,
+	  .chip_type = RTL_CHIP_8723CS_XX,
+	  .hci_bus = HCI_UART,
+	  .config_needed = true,
+	  .has_rom_version = true,
+	  .fw_name  = "rtl_bt/rtl8723cs_xx_fw.bin",
+	  .cfg_name = "rtl_bt/rtl8723cs_xx_config" },
+
 	/* 8723D */
 	{ IC_INFO(RTL_ROM_LMP_8723B, 0xd),
 	  .config_needed = true,
@@ -171,7 +210,8 @@  static const struct id_table ic_id_table[] = {
 	};
 
 static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
-					     u8 hci_ver, u8 hci_bus)
+					     u8 hci_ver, u8 hci_bus,
+					     u8 chip_type)
 {
 	int i;
 
@@ -188,6 +228,9 @@  static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev,
 		if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) &&
 		    (ic_id_table[i].hci_bus != hci_bus))
 			continue;
+		if ((ic_id_table[i].match_flags & IC_MATCH_FL_CHIP_TYPE) &&
+		    (ic_id_table[i].chip_type != chip_type))
+			continue;
 
 		break;
 	}
@@ -270,6 +313,7 @@  static int rtlbt_parse_firmware(struct hci_dev *hdev,
 		{ RTL_ROM_LMP_8723B, 1 },
 		{ RTL_ROM_LMP_8821A, 2 },
 		{ RTL_ROM_LMP_8761A, 3 },
+		{ RTL_ROM_LMP_8703B, 7 },
 		{ RTL_ROM_LMP_8822B, 8 },
 		{ RTL_ROM_LMP_8723B, 9 },	/* 8723D */
 		{ RTL_ROM_LMP_8821A, 10 },	/* 8821C */
@@ -545,6 +589,48 @@  static int btrtl_setup_rtl8723b(struct hci_dev *hdev,
 	return ret;
 }
 
+static bool rtl_has_chip_type(u16 lmp_subver)
+{
+	switch (lmp_subver) {
+	case RTL_ROM_LMP_8703B:
+		return true;
+	default:
+		break;
+	}
+
+	return  false;
+}
+
+static int rtl_read_chip_type(struct hci_dev *hdev, u8 *type)
+{
+	struct rtl_chip_type_evt *chip_type;
+	struct sk_buff *skb;
+	const unsigned char cmd_buf[] = {0x00, 0x94, 0xa0, 0x00, 0xb0};
+
+	/* Read RTL chip type command */
+	skb = __hci_cmd_sync(hdev, 0xfc61, 5, cmd_buf, HCI_INIT_TIMEOUT);
+	if (IS_ERR(skb)) {
+		rtl_dev_err(hdev, "Read chip type failed (%ld)",
+			    PTR_ERR(skb));
+		return PTR_ERR(skb);
+	}
+
+	if (skb->len != sizeof(*chip_type)) {
+		rtl_dev_err(hdev, "RTL chip type event length mismatch");
+		kfree_skb(skb);
+		return -EIO;
+	}
+
+	chip_type = (struct rtl_chip_type_evt *)skb->data;
+	rtl_dev_info(hdev, "chip_type status=%x type=%x",
+		     chip_type->status, chip_type->type);
+
+	*type = chip_type->type & 0x0f;
+
+	kfree_skb(skb);
+	return 0;
+}
+
 void btrtl_free(struct btrtl_device_info *btrtl_dev)
 {
 	kvfree(btrtl_dev->fw_data);
@@ -561,7 +647,7 @@  struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 	struct hci_rp_read_local_version *resp;
 	char cfg_name[40];
 	u16 hci_rev, lmp_subver;
-	u8 hci_ver;
+	u8 hci_ver, chip_type = 0;
 	int ret;
 
 	btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
@@ -586,8 +672,14 @@  struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev,
 	lmp_subver = le16_to_cpu(resp->lmp_subver);
 	kfree_skb(skb);
 
+	if (rtl_has_chip_type(lmp_subver)) {
+		ret = rtl_read_chip_type(hdev, &chip_type);
+		if (ret)
+			goto err_free;
+	}
+
 	btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver,
-					    hdev->bus);
+					    hdev->bus, chip_type);
 
 	if (!btrtl_dev->ic_info) {
 		rtl_dev_info(hdev, "unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x",
@@ -660,6 +752,7 @@  int btrtl_download_firmware(struct hci_dev *hdev,
 	case RTL_ROM_LMP_8821A:
 	case RTL_ROM_LMP_8761A:
 	case RTL_ROM_LMP_8822B:
+	case RTL_ROM_LMP_8703B:
 		return btrtl_setup_rtl8723b(hdev, btrtl_dev);
 	default:
 		rtl_dev_info(hdev, "assuming no firmware upload needed");
@@ -678,7 +771,12 @@  int btrtl_setup_realtek(struct hci_dev *hdev)
 		return PTR_ERR(btrtl_dev);
 
 	ret = btrtl_download_firmware(hdev, btrtl_dev);
+	if (ret)
+		goto out_free;
 
+	btrtl_apply_quirks(hdev, btrtl_dev);
+
+out_free:
 	btrtl_free(btrtl_dev);
 
 	/* Enable controller to do both LE scan and BR/EDR inquiry
@@ -818,6 +916,24 @@  int btrtl_get_uart_settings(struct hci_dev *hdev,
 }
 EXPORT_SYMBOL_GPL(btrtl_get_uart_settings);
 
+void btrtl_apply_quirks(struct hci_dev *hdev,
+			struct btrtl_device_info *btrtl_dev)
+{
+	switch (btrtl_dev->ic_info->lmp_subver) {
+	case RTL_ROM_LMP_8703B:
+		/* 8723CS reports two pages for local ext features,
+		 * but it doesn't support any features from page 2 -
+		 * it either responds with garbage or with error status
+		 */
+		set_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FTR_MAX_PAGE,
+			&hdev->quirks);
+		break;
+	default:
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(btrtl_apply_quirks);
+
 MODULE_AUTHOR("Daniel Drake <drake@endlessm.com>");
 MODULE_DESCRIPTION("Bluetooth support for Realtek devices ver " VERSION);
 MODULE_VERSION(VERSION);
@@ -827,6 +943,12 @@  MODULE_FIRMWARE("rtl_bt/rtl8723b_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8723b_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8723bs_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8723bs_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_cg_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_vf_config.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_fw.bin");
+MODULE_FIRMWARE("rtl_bt/rtl8723cs_xx_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8723ds_fw.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8723ds_config.bin");
 MODULE_FIRMWARE("rtl_bt/rtl8761a_fw.bin");
diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h
index 2a582682136d..152ed2ece4c2 100644
--- a/drivers/bluetooth/btrtl.h
+++ b/drivers/bluetooth/btrtl.h
@@ -14,6 +14,11 @@ 
 
 struct btrtl_device_info;
 
+struct rtl_chip_type_evt {
+	__u8 status;
+	__u8 type;
+} __packed;
+
 struct rtl_download_cmd {
 	__u8 index;
 	__u8 data[RTL_FRAG_LEN];
@@ -60,6 +65,8 @@  int btrtl_get_uart_settings(struct hci_dev *hdev,
 			    struct btrtl_device_info *btrtl_dev,
 			    unsigned int *controller_baudrate,
 			    u32 *device_baudrate, bool *flow_control);
+void btrtl_apply_quirks(struct hci_dev *hdev,
+			struct btrtl_device_info *btrtl_dev);
 
 #else
 
@@ -96,6 +103,11 @@  static inline int btrtl_get_uart_settings(struct hci_dev *hdev,
 					  bool *flow_control)
 {
 	return -ENOENT;
+
+static inline void btrtl_apply_quirks(struct hci_dev *hdev,
+			struct btrtl_device_info *btrtl_dev)
+{
+}
 }
 
 #endif
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index e60b2e0773db..c34acab9e8ac 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -904,6 +904,10 @@  static int h5_btrtl_setup(struct h5 *h5)
 	err = btrtl_download_firmware(h5->hu->hdev, btrtl_dev);
 	/* Give the device some time before the hci-core sends it a reset */
 	usleep_range(10000, 20000);
+	if (err)
+		goto out_free;
+
+	btrtl_apply_quirks(h5->hu->hdev, btrtl_dev);
 
 out_free:
 	btrtl_free(btrtl_dev);
@@ -1020,6 +1024,8 @@  static const struct of_device_id rtl_bluetooth_of_match[] = {
 	  .data = (const void *)&rtl_vnd },
 	{ .compatible = "realtek,rtl8723bs-bt",
 	  .data = (const void *)&rtl_vnd },
+	{ .compatible = "realtek,rtl8723cs-bt",
+	  .data = (const void *)&rtl_vnd },
 #endif
 	{ },
 };