Hi Matthias,
Please find my comments inline.
On 2018-06-19 02:49, Matthias Kaehlcke wrote:
On Sat, Jun 16, 2018 at 11:57:14AM +0530, Balakrishna Godavarthi wrote:
Redefinition of qca_uart_setup will help future Qualcomm Bluetooth
SoC, to use the same function instead of duplicating the function.
Added new arguments soc_type and soc_ver to the functions.
These arguments will help to decide type of firmware files
to be loaded into Bluetooth chip.
soc_type holds the Bluetooth chip connected to APPS processor.
soc_ver holds the Bluetooth chip version.
Signed-off-by: Balakrishna Godavarthi <bgodavar@xxxxxxxxxxxxxx>
---
Changes in v7:
* initial patch
* redefined qca_uart_setup function to generic.
---
drivers/bluetooth/btqca.c | 23 ++++++++++++-----------
drivers/bluetooth/btqca.h | 13 +++++++++++--
drivers/bluetooth/hci_qca.c | 3 ++-
3 files changed, 25 insertions(+), 14 deletions(-)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index c5cf9cab438a..f748730039cf 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -327,9 +327,9 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev,
const bdaddr_t *bdaddr)
}
EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
-int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate)
+int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, uint8_t
soc_type,
Use 'enum qca_btsoc_type' as type for 'soc_type'.
[Bala]: will update.
+ u32 soc_ver)
{
- u32 rome_ver = 0;
struct rome_config config;
int err;
@@ -337,19 +337,20 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
baudrate)
config.user_baud_rate = baudrate;
- /* Get QCA version information */
- err = qca_read_soc_version(hdev, &rome_ver);
- if (err < 0 || rome_ver == 0) {
- bt_dev_err(hdev, "QCA Failed to get version %d", err);
- return err;
+ if (!soc_ver) {
+ /* Get QCA version information */
+ err = qca_read_soc_version(hdev, &soc_ver);
+ if (err < 0 || soc_ver == 0) {
+ bt_dev_err(hdev, "QCA Failed to get version %d", err);
+ return err;
+ }
+ bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
}
Why is this needed? A caller that passes in soc_ver = 0 could just
call qca_read_soc_version() themselves.
[Bala]: hci_qca support two chip one ROME (already up-streamed) and
other wcn3990.
there setup sequence differs.
wcn3900:
1. set baudrate to 115200
2. read soc version
3. set baudarte to 3.2Mbps
4. download firmware. (calls qca_uart_setup)
ROME:
1. set baudrate to 3.0 mbps
2. calls qca_uart_setup to read soc version and download
firmware.
so to make use of existing function qca_setup_uart(). passing
soc_ver as argument.
if soc_ver is zero, then read soc version (i.e. for ROME chip).
Pls let me know, if you have any queries.
--
Regards
Balakrishna.
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