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chipsets: add CC256xC

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This commit is contained in:
Matthias Ringwald 2016-12-13 21:47:51 +01:00
parent 69316fe8e4
commit 439b93a15d
2 changed files with 11 additions and 6 deletions
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15
chipset/README.md
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@ -31,9 +31,9 @@ Broadcom, whose Bluetooth + Wifi division has been acquired by the Cypress Semic
CSR, which has been acquired by Qualcomm, provides all relevant information on their Support website after signing an NDA.
Chipset | Type | HCI Transport | BD_ADDR (1) | SCO over HCI (2) | LE DLE | Multiple LE Roles (3)| BTstack folder | Comment
Chipset | Type | HCI Transport | BD_ADDR (1) | SCO over HCI (2) | LE DLE | Multiple LE Roles | BTstack folder | Comment
-------------------- |-----------| ---------------|--------------|------------------|--------|----------------------|----------------|---------
Broadcom UART | Dual mode | H4, H5 | rarely | No (didn't work) | No | Maybe | bcm | Max UART baudrate 3 mbps
Broadcom UART | Dual mode | H4, H5 | rarely | No (didn't work) | No | Maybe (3) | bcm | Max UART baudrate 3 mbps
Broadcom USB Dongles | Dual mode | USB | Yes | No (didn't work) | No | No | bcm |
CSR UART | Dual mode | H4, H5 | rarely | No (didn't work) | No | No | csr |
CSR USB Dongles | Dual mode | USB | Mostly | Yes | No | No | csr |
@ -43,13 +43,13 @@ EM 9304 | LE | SPI, H4 | ? | n.a.
Nordic nRF | LE | H4 | fixed random | n.a. | Yes | Yes | | Requires custom HCI firmware
STM STLC2500D | Classic | H4 | No | No (didn't try) | n.a | n.a. | stlc2500d | Custom deep sleep management not supported
Toshiba TC35661 | Dual mode | H4 | No | No (didn't try) | No | No | tc3566 | HCI version not tested. See below
TI CC256x, WL183x | Dual mode | H4, H5, eHCILL | Yes | Yes | No | No | cc256x | Also WL185x, WL187x, and WL189x
TI CC256x, WL183x | Dual mode | H4, H5, eHCILL | Yes | Yes | No | Yes for CC256XC | cc256x | Also WL185x, WL187x, and WL189x
**Notes**:
1. BD_ADDR: Not all Bluetooth chipset come with a fixed valid MAC Address. Better Broadcom and CSR dongles come with a MAC address from the dongle manufacturer, but cheaper ones might come with identical addresses.
2. SCO over HCI: All Bluetooth Classic chipsets support SCO over HCI, for those that are marked with No, we either didn't try or didn't found enough information to configure it correctly.
2. Multiple LE Roles: Apple uses Broadcom Bluetooth+Wifi in their iOS devices and newer iOS versions support multipe concurrent LE roles,
3. Multiple LE Roles: Apple uses Broadcom Bluetooth+Wifi in their iOS devices and newer iOS versions support multipe concurrent LE roles,
so at least some Broadcom models support multiple concurrent LE roles.
## Broadcom
@ -178,10 +178,12 @@ STMicroelectronics offers the Bluetooth V2.1 + EDR chipset STLC2500D that suppor
## Texas Instruments CC256x series
The Texas Instruments CC256x series is currently in its third iteration and provides a Classic-only (CC2560), a Dual-mode (CC2564), and a Classic + ANT model (CC2567). A variant of the Dual-mode chipset is also integrated into TI's WiLink 8 Wifi+Bluetooth combo modules of the WL183x, WL185x, WL187x, and WL189x series.
The Texas Instruments CC256x series is currently in its fourth iteration and provides a Classic-only (CC2560), a Dual-mode (CC2564), and a Classic + ANT model (CC2567). A variant of the Dual-mode chipset is also integrated into TI's WiLink 8 Wifi+Bluetooth combo modules of the WL183x, WL185x, WL187x, and WL189x series.
The CC256x chipset is connected via an UART connection and supports the H4, H5 (since third iteration), and eHCILL.
The latest generation CC256xC chipsets support multiple LE roles in parallel.
**SCO data** is routed to the I2S/PCM interface but can be configured with the [HCI_VS_Write_SCO_Configuration](http://processors.wiki.ti.com/index.php/CC256x_VS_HCI_Commands#HCI_VS_Write_SCO_Configuration_.280xFE10.29) command.
**Baud rate** can be set with [HCI_VS_Update_UART_HCI_Baudrate](http://processors.wiki.ti.com/index.php/CC256x_VS_HCI_Commands#HCI_VS_Update_UART_HCI_Baudrate_.280xFF36.29). The chipset confirms the change with a command complete event after which the local UART is set to the new speed. Oddly enough, the CC256x chipsets ignore the incoming CTS line during this particular command complete response. If the MCU gets UART overrun errors in this situation, a work around could be to set a timer for 100 ms and ignore all incoming data (i.e. the command complete event) during that period. Then, after the timeout, the UART can be set to the new speed safely.
@ -210,6 +212,9 @@ the naming scheme previously used on Linux systems. The conversion
script has been updated to also detect *initscripts_TIInit_6.7.16_bt_spec_4.1.bts*
and integrates *initscripts_TIInit_6.7.16_ble_add-on.bts* if present.
**Update 3:** The latest (v1.5) version of the init scripts for the third generation CC256xB are not availabe for direct download.
Same with v1.0 for then fourth generation CC256xC chipset.
**BTstack integration**: The common code for all CC256x chipsets is provided by *btstack_chipset_cc256x.c*. During the setup, *btstack_chipset_cc256x_instance* function is used to get a *btstack_chiopset_t* instance and passed to *hci_init* function.
SCO Data can be routed over HCI, so HFP Wide-Band Speech is supported.

2
chipset/cc256x/convert_bts_init_scripts.py
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@ -304,7 +304,7 @@ for name in files:
print("Skipping " + name)
continue
print ("\nBase script " + name)
print ("\nMain script " + name)
# check for BLE add-on
add_on = ""