SF32LB52 LCPU

SiFli SF32LB52 low-power CPU. More...

Data Structures
struct	pbl_rproc_sf32lb52
	SF32LB52 LCPU. More...

Macros
#define	PBL_RPROC_SF32LB52_DEFINE(sym, _name, _tx_chan, _rx_chan, _mem)
	Define and register the LCPU.

Detailed Description

SiFli SF32LB52 low-power CPU.

The LCPU runs the Bluetooth controller from ROM, which the driver configures, patches and calibrates on start. The controller exchanges HCI with the HCPU over byte rings signalled with a pair of doorbells; the LCPU to HCPU ring sits in LPSYS RAM, the HCPU to LCPU one in HCPU RAM reserved for it, whose address the driver hands to the ROM. The HCI transport takes the doorbells and the region from here:

PBL_RPROC_SF32LB52_DEFINE(s_lcpu, "lcpu", PBL_MBOX_CHAN(&s_mailbox1.ctrl, 0),
                          PBL_MBOX_CHAN(&s_mailbox2.ctrl, 0),
                          PBL_MEM_REGION(SF32LB52_HPSYS_MBOX_BUF_BASE, SF32LB52_MBOX_BUF_SIZE));

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Data Structure Documentation

pbl_rproc_sf32lb52

struct pbl_rproc_sf32lb52

SF32LB52 LCPU.

Data Fields
struct pbl_mem_region	mem	HCPU RAM reserved for the HCPU to LCPU ring (memory-region).
struct pbl_rproc	rproc	Remote processor.
struct pbl_mbox_chan	rx_chan	Doorbell from the LCPU (mboxes entry rx).
struct pbl_mbox_chan	tx_chan	Doorbell to the LCPU (mboxes entry tx).

Macro Definition Documentation

PBL_RPROC_SF32LB52_DEFINE

#define PBL_RPROC_SF32LB52_DEFINE	(		sym,
			_name,
			_tx_chan,
			_rx_chan,
			_mem
	)

Value:

  PBL_RPROC_STATE_DEFINE(sym);                                                                 \
  const struct pbl_rproc_sf32lb52 sym = {                                                      \
    .rproc =                                                                                   \
        PBL_RPROC_INIT(sym, _name, pbl_rproc_sf32lb52_init, nullptr, &pbl_rproc_sf32lb52_ops), \
    .tx_chan = _tx_chan,                                                                       \
    .rx_chan = _rx_chan,                                                                       \
    .mem = _mem,                                                                               \
  };                                                                                           \
  PBL_DEVICE_REGISTER(sym, &sym.rproc.dev)

Define and register the LCPU.

Parameters

sym	Symbol.
_name	Device name.
_tx_chan	Doorbell to the LCPU, a PBL_MBOX_CHAN().
_rx_chan	Doorbell from the LCPU, a PBL_MBOX_CHAN().
_mem	HCPU RAM reserved for the HCPU to LCPU ring, a PBL_MEM_REGION().