Merge "ipq5018: Add BT beaconing support"

This commit is contained in:
Linux Build Service Account 2020-11-25 16:09:26 -08:00 committed by Gerrit - the friendly Code Review server
commit 27ebbe15c7
10 changed files with 946 additions and 1 deletions

View file

@ -550,6 +550,85 @@ int qca_scm_secure_authenticate(void *cmd_buf, size_t cmd_len)
return ret; return ret;
} }
#ifdef CONFIG_IPQ_BT_SUPPORT
int qti_scm_otp(u32 peripheral)
{
int ret;
if (is_scm_armv8())
{
struct qca_scm_desc desc = {0};
desc.arginfo = QCA_SCM_ARGS(1);
desc.args[0] = peripheral;
ret = scm_call_64(SCM_SVC_PIL, SCM_CMD_OTP, &desc);
}
else
{
u32 cmd = peripheral;
ret = scm_call(SCM_SVC_PIL, SCM_CMD_OTP, &cmd, sizeof(cmd),
NULL, 0);
}
return ret;
}
int qti_scm_pas_init_image(u32 peripheral, u32 addr)
{
int ret;
if (is_scm_armv8())
{
struct qca_scm_desc desc = {0};
desc.arginfo = QCA_SCM_ARGS(2, SCM_VAL, SCM_IO_WRITE);
desc.args[0] = peripheral;
desc.args[1] = addr;
ret = scm_call_64(SCM_SVC_PIL, SCM_PAS_INIT_IMAGE_CMD, &desc);
}
else
{
struct {
u32 proc;
u32 image_addr;
} request;
request.proc = peripheral;
request.image_addr = addr;
ret = scm_call(SCM_SVC_PIL, SCM_PAS_INIT_IMAGE_CMD, &request,
sizeof(request), NULL, 0);
}
return ret;
}
int qti_pas_and_auth_reset(u32 peripheral)
{
int ret;
u32 cmd = peripheral;
if (is_scm_armv8())
{
struct qca_scm_desc desc = {0};
desc.arginfo = QCA_SCM_ARGS(1);
desc.args[0] = peripheral;
ret = scm_call_64(SCM_SVC_PIL, SCM_PAS_AUTH_AND_RESET_CMD, &desc);
}
else
{
ret = scm_call(SCM_SVC_PIL, SCM_PAS_AUTH_AND_RESET_CMD, &cmd, sizeof(cmd),
NULL, 0);
}
return ret;
}
#endif
#else #else
int qca_scm_call(u32 svc_id, u32 cmd_id, void *buf, size_t len) int qca_scm_call(u32 svc_id, u32 cmd_id, void *buf, size_t len)
{ {

View file

@ -14,6 +14,7 @@
#ifndef IPQ5018_CLK_H #ifndef IPQ5018_CLK_H
#define IPQ5018_CLK_H #define IPQ5018_CLK_H
#define CLK_ENABLE 0x1
/* I2C clocks configuration */ /* I2C clocks configuration */
#ifdef CONFIG_IPQ5018_I2C #ifdef CONFIG_IPQ5018_I2C
@ -26,8 +27,14 @@
#define CMD_UPDATE 0x1 #define CMD_UPDATE 0x1
#define ROOT_EN 0x2 #define ROOT_EN 0x2
#define CLK_ENABLE 0x1
void i2c_clock_config(void); void i2c_clock_config(void);
#endif #endif
#ifdef CONFIG_IPQ_BT_SUPPORT
#define GCC_BTSS_LPO_CBCR 0x181C004
void enable_btss_lpo_clk(void);
#endif
#endif /*IPQ5018_CLK_H*/ #endif /*IPQ5018_CLK_H*/

View file

@ -34,6 +34,12 @@
#define SCM_SVC_ID_SHIFT 0xA #define SCM_SVC_ID_SHIFT 0xA
#define IS_CALL_AVAIL_CMD 0x1 #define IS_CALL_AVAIL_CMD 0x1
#ifdef CONFIG_IPQ_BT_SUPPORT
#define SCM_PAS_INIT_IMAGE_CMD 0x1
#define SCM_PAS_AUTH_AND_RESET_CMD 0x5
#define SCM_CMD_OTP 0x15
#endif
/* scm_v8 */ /* scm_v8 */
#define SCM_VAL 0x0 #define SCM_VAL 0x0
#define SCM_IO_READ 0x1 #define SCM_IO_READ 0x1
@ -130,6 +136,11 @@ int is_scm_sec_auth_available(u32 svc_id, u32 cmd_id);
#ifdef CONFIG_IPQ_TZT #ifdef CONFIG_IPQ_TZT
int qca_scm(u32 svc_id, u32 cmd_id, u32 ownr_id, u32 *addr, u32 len); int qca_scm(u32 svc_id, u32 cmd_id, u32 ownr_id, u32 *addr, u32 len);
#endif #endif
#ifdef CONFIG_IPQ_BT_SUPPORT
int qti_scm_otp(u32 peripheral);
int qti_scm_pas_init_image(u32 peripheral, u32 addr);
int qti_pas_and_auth_reset(u32 peripheral);
#endif
#define MAX_QCA_SCM_RETS 3 #define MAX_QCA_SCM_RETS 3
#define MAX_QCA_SCM_ARGS 10 #define MAX_QCA_SCM_ARGS 10
#define SCM_READ_OP 1 #define SCM_READ_OP 1

View file

@ -2,4 +2,5 @@ ccflags-y += -I$(srctree)/board/qca/arm/ipq5018
cppflags-y += -I$(srctree)/board/qca/arm/ipq5018 cppflags-y += -I$(srctree)/board/qca/arm/ipq5018
obj-y := ipq5018.o obj-y := ipq5018.o
obj-y += clock.o obj-y += clock.o
obj-$(CONFIG_IPQ_BT_SUPPORT) += bt_ipc.o

208
board/qca/arm/ipq5018/bt.h Normal file
View file

@ -0,0 +1,208 @@
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _BT_H
#define _BT_H
#include <asm/atomic.h>
#define PAS_ID 0xC
#define CMD_ID 0x14
#define BT_M0_WARM_RST_ORIDE 0x0
#define BT_M0_WARM_RST 0x4
#define IOCTL_IPC_BOOT 0xBE
#define IPC_TX_QSIZE 0x20
#define TO_APPS_ADDR(a) (btmem->virt + (int)(uintptr_t)a)
#define TO_BT_ADDR(a) (a - btmem->virt)
#define IPC_LBUF_SZ(w, x, y, z) (((TO_BT_ADDR((void *)w) + w->x) - w->y) / w->z)
#define IPC_MSG_HDR_SZ (4u)
#define IPC_MSG_PLD_SZ (40u)
#define IPC_TOTAL_MSG_SZ (IPC_MSG_HDR_SZ + IPC_MSG_PLD_SZ)
#define IPC_LMSG_MASK (0x8000u)
#define IPC_RACK_MASK (0x4000u)
#define IPC_PKT_TYPE_MASK (0x0300u)
#define IPC_MSG_ID_MASK (0x00FFu)
#define IPC_LMSG_TYPE ((uint16_t) IPC_LMSG_MASK)
#define IPC_SMSG_TYPE ((uint16_t) 0x0000u)
#define IPC_REQ_ACK ((uint16_t) IPC_RACK_MASK)
#define IPC_NO_ACK ((uint16_t) 0x0000u)
#define IPC_PKT_TYPE_CUST ((uint16_t) 0x0000u)
#define IPC_PKT_TYPE_HCI ((uint16_t) 0x0100u)
#define IPC_PKT_TYPE_AUDIO ((uint16_t) 0x0200u)
#define IPC_PKT_TYPE_RFU (IPC_PKT_TYPE_MASK)
#define IPC_LMSG_SHIFT (15u)
#define IPC_RACK_SHIFT (14u)
#define IPC_PKT_TYPE_SHIFT (8u)
#define GET_NO_OF_BLOCKS(a, b) ((a + b - 1) / b)
#define GET_RX_INDEX_FROM_BUF(x, y) ((x - btmem->rx_ctxt->lring_buf) / y)
#define GET_TX_INDEX_FROM_BUF(x, y) ((x - btmem->tx_ctxt->lring_buf) / y)
#define IS_RX_MEM_NON_CONTIGIOUS(pBuf, len, sz) \
((pBuf + len) > \
(btmem->rx_ctxt->lring_buf + \
(sz * btmem->rx_ctxt->lmsg_buf_cnt)))
/** Message header format.
*
* ---------------------------------------------------------------
* BitPos | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 - 0 |
* ---------------------------------------------------------------
* Field | Long Msg |rAck| RFU | PktType | msgID |
* ---------------------------------------------------------------
*
* - Long Msg :
*
* - reqAck : This is interpreted by receiver for sending acknowledegement
* to sender i.e. send a ack IPC interrupt if set.
* Use @ref IS_REQ_ACK or @ref IS_NO_ACK
* to determine ack is requested or not.
*
* - RFU : Reserved for future use.
*
* - pktType :
*
* - msgID : Contains unique message ID within a Category.
* Use @ref IPC_GET_MSG_ID to get message ID.
*/
#define IPC_ConstructMsgHeader(msgID, reqAck, pktType, longMsg) \
(((uint8_t) longMsg << IPC_LMSG_SHIFT) | \
((uint8_t) reqAck << IPC_RACK_SHIFT) | \
((uint16_t) pktType << IPC_PKT_TYPE_SHIFT) | msgID)
#define IPC_GET_PKT_TYPE(hdr) \
((enum ipc_pkt_type)((hdr & IPC_PKT_TYPE_MASK) >> IPC_PKT_TYPE_SHIFT))
#define IS_LONG_MSG(hdr) ((hdr & IPC_LMSG_MASK) == IPC_LMSG_TYPE)
#define IS_SHORT_MSG(hdr) ((hdr & IPC_LMSG_MASK) == IPC_SMSG_TYPE)
#define IS_REQ_ACK(hdr) ((hdr & IPC_RACK_MASK) == IPC_REQ_ACK)
#define IS_NO_ACK(hdr) ((hdr & IPC_RACK_MASK) == IPC_NO_ACK)
#define IS_HCI_PKT(hdr) ((hdr & IPC_PKT_TYPE_MASK) == IPC_PKT_TYPE_HCI)
#define IS_CUST_PKT(hdr) ((hdr & IPC_PKT_TYPE_MASK) == IPC_PKT_TYPE_CUST)
#define IPC_GET_MSG_ID(hdr) ((uint8_t)(hdr & IPC_MSG_ID_MASK))
#define IPC_CMD_IPC_STOP (0x01)
#define IPC_CMD_SWITCH_TO_UART (0x02)
#define IPC_CMD_PREPARE_DUMP (0x03)
#define IPC_CMD_COLLECT_DUMP (0x04)
#define IPC_CMD_IPC_START (0x05)
#define BT_RAM_START 0x7000000
#define BT_RAM_PATCH 0x7020250
#define BT_RAM_SIZE 0x58000
#define SYSCON 0x0B111000
/*-------------------------------------------------------------------------
* Type Declarations
* ------------------------------------------------------------------------
*/
enum ipc_pkt_type {
IPC_CUST_PKT,
IPC_HCI_PKT,
IPC_AUDIO_PKT,
IPC_PKT_MAX
};
struct long_msg_info {
uint16_t smsg_free_cnt;
uint16_t lmsg_free_cnt;
uint8_t ridx;
uint8_t widx;
};
struct ipc_aux_ptr {
uint32_t len;
uint32_t buf;
};
struct ring_buffer {
uint16_t msg_hdr;
uint16_t len;
union {
uint8_t smsg_data[IPC_MSG_PLD_SZ];
uint32_t lmsg_data;
} payload;
};
struct ring_buffer_info {
uint32_t rbuf;
uint8_t ring_buf_cnt;
uint8_t ridx;
uint8_t widx;
uint8_t tidx;
uint32_t next;
};
struct context_info {
uint16_t TotalMemorySize;
uint8_t lmsg_buf_cnt;
uint8_t smsg_buf_cnt;
struct ring_buffer_info sring_buf_info;
uint32_t sring_buf;
uint32_t lring_buf;
uint32_t reserved;
};
struct bt_mem {
phys_addr_t phys;
phys_addr_t reloc;
void __iomem *virt;
size_t size;
struct context_info *tx_ctxt;
struct context_info *rx_ctxt;
struct long_msg_info lmsg_ctxt;
};
struct bt_ipc {
uint32_t regmap;
int offset;
int bit;
int irq;
atomic_t tx_q_cnt;
};
struct bt_descriptor {
void __iomem *warm_reset;
struct bt_ipc ipc;
struct bt_mem btmem;
int (*sendmsg_cb)(struct bt_descriptor *, unsigned char *, int);
void (*recvmsg_cb)(struct bt_descriptor *, unsigned char *, int);
atomic_t state;
atomic_t tx_in_progress;
unsigned char *buf;
uint32_t len;
};
struct ipc_intent {
uint8_t *buf;
uint16_t len;
};
extern int bt_ipc_sendmsg(struct bt_descriptor *btDesc, unsigned char *buf, int len );
extern void bt_ipc_init(struct bt_descriptor *btDesc);
extern void bt_ipc_worker(struct bt_descriptor *btDesc);
#endif /* _BT_H */

View file

@ -0,0 +1,396 @@
/*
* Copyright (c) 2020 The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/io.h>
#include <asm/atomic.h>
#include <asm-generic/atomic-long.h>
#include <linux/ctype.h>
#include "bt.h"
#include <common.h>
#include <memalign.h>
#include <linux/err.h>
static void *bt_ipc_alloc_lmsg(struct bt_descriptor *btDesc, uint32_t len,
struct ipc_aux_ptr *aux_ptr, uint8_t *is_lbuf_full)
{
uint8_t idx;
uint8_t blks;
uint8_t blks_consumed;
struct bt_mem *btmem = &btDesc->btmem;
uint32_t lsz = IPC_LBUF_SZ(btmem->tx_ctxt, TotalMemorySize, lring_buf,
lmsg_buf_cnt);
if (btmem->tx_ctxt->lring_buf == 0) {
printf("no long message buffer not initialized\n");
return ERR_PTR(-ENODEV);
}
blks = GET_NO_OF_BLOCKS(len, lsz);
if (!btmem->lmsg_ctxt.lmsg_free_cnt ||
(blks > btmem->lmsg_ctxt.lmsg_free_cnt))
return ERR_PTR(-EAGAIN);
idx = btmem->lmsg_ctxt.widx;
if ((btmem->lmsg_ctxt.widx + blks) > btmem->tx_ctxt->lmsg_buf_cnt) {
blks_consumed = btmem->tx_ctxt->lmsg_buf_cnt - idx;
aux_ptr->len = len - (blks_consumed * lsz);
aux_ptr->buf = btmem->tx_ctxt->lring_buf;
}
btmem->lmsg_ctxt.widx = (btmem->lmsg_ctxt.widx + blks) %
btmem->tx_ctxt->lmsg_buf_cnt;
btmem->lmsg_ctxt.lmsg_free_cnt -= blks;
if (btmem->lmsg_ctxt.lmsg_free_cnt <=
((btmem->tx_ctxt->lmsg_buf_cnt * 20) / 100))
*is_lbuf_full = 1;
return (TO_APPS_ADDR(btmem->tx_ctxt->lring_buf) + (idx * lsz));
}
static struct ring_buffer_info *bt_ipc_get_tx_rbuf(struct bt_descriptor *btDesc,
uint8_t *is_sbuf_full)
{
uint8_t idx;
struct ring_buffer_info *rinfo;
struct bt_mem *btmem = &btDesc->btmem;
for (rinfo = &(btmem->tx_ctxt->sring_buf_info); rinfo != NULL;
rinfo = (struct ring_buffer_info *)(uintptr_t)(rinfo->next)) {
idx = (rinfo->widx + 1) % (btmem->tx_ctxt->smsg_buf_cnt);
if (idx != rinfo->tidx) {
btmem->lmsg_ctxt.smsg_free_cnt--;
if (btmem->lmsg_ctxt.smsg_free_cnt <=
((btmem->tx_ctxt->smsg_buf_cnt * 20) / 100))
*is_sbuf_full = 1;
return rinfo;
}
}
return ERR_PTR(-EAGAIN);
}
int bt_ipc_send_msg(struct bt_descriptor *btDesc, uint16_t msg_hdr,
const uint8_t *pData, uint16_t len, bool dequeue)
{
int ret = 0;
struct bt_mem *btmem = &btDesc->btmem;
struct ring_buffer_info *rinfo;
struct ring_buffer *rbuf;
uint8_t is_lbuf_full = 0;
uint8_t is_sbuf_full = 0;
struct ipc_aux_ptr aux_ptr;
void *lmsg_data;
rinfo = bt_ipc_get_tx_rbuf(btDesc, &is_sbuf_full);
if (IS_ERR(rinfo)) {
printf("short msg buf full, queuing msg[%d]\n",
atomic_read(&btDesc->ipc.tx_q_cnt));
ret = PTR_ERR(rinfo);
return ret;
}
rbuf = &((struct ring_buffer *)(TO_APPS_ADDR(
rinfo->rbuf)))[rinfo->widx];
rbuf->msg_hdr = msg_hdr;
rbuf->len = len;
if (len > IPC_MSG_PLD_SZ) {
rbuf->msg_hdr = rbuf->msg_hdr | IPC_LMSG_MASK;
aux_ptr.len = 0;
aux_ptr.buf = 0;
lmsg_data = bt_ipc_alloc_lmsg(btDesc, len,
&aux_ptr, &is_lbuf_full);
if (IS_ERR(lmsg_data)) {
printf("long msg buf full, queuing msg[%d]\n",
atomic_read(&btDesc->ipc.tx_q_cnt));
ret = PTR_ERR(lmsg_data);
return ret;
}
memcpy_toio(lmsg_data, pData,
(len - aux_ptr.len));
if (aux_ptr.buf) {
memcpy_toio(TO_APPS_ADDR(aux_ptr.buf),
(pData + (len - aux_ptr.len)), aux_ptr.len);
}
rbuf->payload.lmsg_data = TO_BT_ADDR(lmsg_data);
} else {
memcpy_toio(rbuf->payload.smsg_data, pData, len);
}
if (is_sbuf_full || is_lbuf_full)
rbuf->msg_hdr = rbuf->msg_hdr | IPC_RACK_MASK;
rinfo->widx = (rinfo->widx + 1) % btmem->tx_ctxt->smsg_buf_cnt;
writel( BIT(btDesc->ipc.bit), btDesc->ipc.regmap+ btDesc->ipc.offset);
return ret;
}
static
void bt_ipc_free_lmsg(struct bt_descriptor *btDesc, uint32_t lmsg, uint16_t len)
{
uint8_t idx;
uint8_t blks;
struct bt_mem *btmem = &btDesc->btmem;
uint32_t lsz = IPC_LBUF_SZ(btmem->tx_ctxt, TotalMemorySize, lring_buf,
lmsg_buf_cnt);
idx = GET_TX_INDEX_FROM_BUF(lmsg, lsz);
if (idx != btmem->lmsg_ctxt.ridx)
return;
blks = GET_NO_OF_BLOCKS(len, lsz);
btmem->lmsg_ctxt.ridx = (btmem->lmsg_ctxt.ridx + blks) %
btmem->tx_ctxt->lmsg_buf_cnt;
btmem->lmsg_ctxt.lmsg_free_cnt += blks;
}
static void bt_ipc_cust_msg(struct bt_descriptor *btDesc, uint8_t msgid)
{
struct bt_mem *btmem = &btDesc->btmem;
uint16_t msg_hdr = 0;
int ret;
msg_hdr |= msgid;
switch (msgid) {
case IPC_CMD_IPC_STOP:
printf("BT IPC Stopped, gracefully stopping APSS IPC\n");
break;
case IPC_CMD_SWITCH_TO_UART:
printf("Configured UART, Swithing BT to debug mode\n");
break;
case IPC_CMD_PREPARE_DUMP:
printf("IPQ crashed, inform BT to prepare dump\n");
break;
case IPC_CMD_COLLECT_DUMP:
printf("BT Crashed, gracefully stopping IPC\n");
return;
case IPC_CMD_IPC_START:
btmem->tx_ctxt = (struct context_info *)((void *)
btmem->rx_ctxt + btmem->rx_ctxt->TotalMemorySize);
btmem->lmsg_ctxt.widx = 0;
btmem->lmsg_ctxt.ridx = 0;
btmem->lmsg_ctxt.smsg_free_cnt = btmem->tx_ctxt->smsg_buf_cnt;
btmem->lmsg_ctxt.lmsg_free_cnt = btmem->tx_ctxt->lmsg_buf_cnt;
atomic_set(&btDesc->state, 1);
printf("BT IPC Started, starting APSS IPC\n");
return;
default:
printf("invalid custom message\n");
return;
}
if (unlikely(!atomic_read(&btDesc->state))) {
printf("BT IPC not initialized, no message sent\n");
return;
}
atomic_set(&btDesc->state, 0);
ret = bt_ipc_send_msg(btDesc, msg_hdr, NULL, 0, true);
if (ret)
printf("err: sending message\n");
}
static bool bt_ipc_process_peer_msgs(struct bt_descriptor *btDesc,
struct ring_buffer_info *rinfo, uint8_t *pRxMsgCount)
{
struct bt_mem *btmem = &btDesc->btmem;
struct ring_buffer *rbuf;
uint8_t ridx, lbuf_idx;
uint8_t blks_consumed;
struct ipc_aux_ptr aux_ptr;
enum ipc_pkt_type pktType = IPC_CUST_PKT;
bool ackReqd = false;
uint8_t *rxbuf = NULL;
uint32_t lsz = IPC_LBUF_SZ(btmem->rx_ctxt, TotalMemorySize, lring_buf,
lmsg_buf_cnt);
ridx = rinfo->ridx;
rbuf = &((struct ring_buffer *)(TO_APPS_ADDR(
btmem->rx_ctxt->sring_buf_info.rbuf)))[ridx];
while (ridx != rinfo->widx) {
memset(&aux_ptr, 0, sizeof(struct ipc_aux_ptr));
rbuf = &((struct ring_buffer *)(TO_APPS_ADDR(
btmem->rx_ctxt->sring_buf_info.rbuf)))[ridx];
if (IS_LONG_MSG(rbuf->msg_hdr)) {
rxbuf = TO_APPS_ADDR(rbuf->payload.lmsg_data);
if (IS_RX_MEM_NON_CONTIGIOUS(rbuf->payload.lmsg_data,
rbuf->len, lsz)) {
lbuf_idx = GET_RX_INDEX_FROM_BUF(
rbuf->payload.lmsg_data, lsz);
blks_consumed = btmem->rx_ctxt->lmsg_buf_cnt -
lbuf_idx;
aux_ptr.len = rbuf->len - (blks_consumed * lsz);
aux_ptr.buf = btmem->rx_ctxt->lring_buf;
}
} else {
rxbuf = rbuf->payload.smsg_data;
}
if (IS_REQ_ACK(rbuf->msg_hdr))
ackReqd = true;
pktType = IPC_GET_PKT_TYPE(rbuf->msg_hdr);
switch (pktType) {
case IPC_HCI_PKT:
btDesc->buf = kzalloc(rbuf->len, GFP_ATOMIC);
if (!btDesc->buf)
return -ENOMEM;
memcpy_fromio(btDesc->buf, rxbuf, (rbuf->len - aux_ptr.len));
if (aux_ptr.buf)
memcpy_fromio(btDesc->buf + (rbuf->len - aux_ptr.len),
TO_APPS_ADDR(aux_ptr.buf), aux_ptr.len);
btDesc->len = rbuf->len;
atomic_set(&btDesc->tx_in_progress, 0);
break;
case IPC_CUST_PKT:
bt_ipc_cust_msg(btDesc, IPC_GET_MSG_ID(rbuf->msg_hdr));
break;
case IPC_AUDIO_PKT:
break;
default:
break;
}
ridx = (ridx + 1) % rinfo->ring_buf_cnt;
}
rinfo->ridx = ridx;
return ackReqd;
}
static void bt_ipc_process_ack(struct bt_descriptor *btDesc)
{
struct ring_buffer_info *rinfo;
struct bt_mem *btmem = &btDesc->btmem;
for (rinfo = &btmem->tx_ctxt->sring_buf_info; rinfo != NULL;
rinfo = (struct ring_buffer_info *)(uintptr_t)(rinfo->next)) {
uint8_t tidx = rinfo->tidx;
struct ring_buffer *rbuf = (struct ring_buffer *)
TO_APPS_ADDR(rinfo->rbuf);
while (tidx != rinfo->ridx) {
if (IS_LONG_MSG(rbuf[tidx].msg_hdr)) {
bt_ipc_free_lmsg(btDesc,
rbuf[tidx].payload.lmsg_data,
rbuf[tidx].len);
}
tidx = (tidx + 1) % btmem->tx_ctxt->smsg_buf_cnt;
btmem->lmsg_ctxt.smsg_free_cnt++;
}
rinfo->tidx = tidx;
}
}
int bt_ipc_sendmsg(struct bt_descriptor *btDesc, unsigned char *buf, int len)
{
int ret;
uint16_t msg_hdr = 0x100;
if (unlikely(!atomic_read(&btDesc->state))) {
printf("BT IPC not initialized, no message sent\n");
return -ENODEV;
}
atomic_set(&btDesc->tx_in_progress, 1);
ret = bt_ipc_send_msg(btDesc, msg_hdr, (uint8_t *)buf, (uint16_t)len,
true);
if (ret)
printf("err: sending message\n");
return ret;
}
void bt_ipc_worker(struct bt_descriptor *btDesc)
{
struct ring_buffer_info *rinfo;
struct bt_mem *btmem = &btDesc->btmem;
bool ackReqd = false;
if (unlikely(!atomic_read(&btDesc->state))) {
btmem->rx_ctxt = (struct context_info *)(btmem->virt + 0xe000);
if (btmem->rx_ctxt->sring_buf_info.widx != 0x1)
return;
}
else
bt_ipc_process_ack(btDesc);
for (rinfo = &(btmem->rx_ctxt->sring_buf_info); rinfo != NULL;
rinfo = (struct ring_buffer_info *)(uintptr_t)(rinfo->next)) {
if (bt_ipc_process_peer_msgs(btDesc, rinfo,
&btmem->rx_ctxt->smsg_buf_cnt)) {
ackReqd = true;
}
}
if (ackReqd) {
writel( BIT(btDesc->ipc.bit), btDesc->ipc.regmap+ btDesc->ipc.offset);
}
}
void bt_ipc_init(struct bt_descriptor *btDesc)
{
struct bt_mem *btmem;
btmem = &btDesc->btmem;
btmem->phys = BT_RAM_START;
btmem->reloc = BT_RAM_START;
btmem->size = BT_RAM_SIZE;
btmem->virt = (void __iomem *)BT_RAM_START;
btDesc->ipc.regmap = SYSCON;
btDesc->ipc.offset = 8;
btDesc->ipc.bit = 23;
atomic_set(&btDesc->state, 0);
atomic_set(&btDesc->tx_in_progress, 0);
}

View file

@ -35,3 +35,9 @@ void i2c_clock_config(void)
} }
#endif #endif
#ifdef CONFIG_IPQ_BT_SUPPORT
void enable_btss_lpo_clk(void)
{
writel(CLK_ENABLE, GCC_BTSS_LPO_CBCR);
}
#endif

View file

@ -32,6 +32,12 @@
#ifdef CONFIG_QPIC_NAND #ifdef CONFIG_QPIC_NAND
#include <asm/arch-qca-common/qpic_nand.h> #include <asm/arch-qca-common/qpic_nand.h>
#endif #endif
#ifdef CONFIG_IPQ_BT_SUPPORT
#include <malloc.h>
#include "bt.h"
#include "bt_binary_array.h"
#include <linux/compat.h>
#endif
#define DLOAD_MAGIC_COOKIE 0x10 #define DLOAD_MAGIC_COOKIE 0x10
@ -477,6 +483,180 @@ void fdt_fixup_auto_restart(void *blob)
return; return;
} }
#ifdef CONFIG_IPQ_BT_SUPPORT
unsigned char hci_reset[] =
{0x01, 0x03, 0x0c, 0x00};
unsigned char adv_data[] =
{0x01, 0X08, 0X20, 0X20, 0X1F, 0X0A, 0X09, 0X71,
0X75, 0X61, 0X6c, 0X63, 0X6f, 0X6d, 0X6d, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X00, 0X00, 0X00};
unsigned char set_interval[] =
{0X01, 0X06, 0X20, 0X0F, 0X20, 0X00, 0X20, 0X00,
0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00, 0X00,
0X00, 0X07, 0X00};
unsigned char start_beacon[] =
{0x01, 0x0A, 0x20, 0x01, 0x01};
unsigned char *hci_cmds[] = {
hci_reset,
adv_data,
set_interval,
start_beacon
};
int wait_for_bt_event(struct bt_descriptor *btDesc, u8 bt_wait)
{
int val, timeout = 0;
do{
udelay(10);
bt_ipc_worker(btDesc);
if (bt_wait == BT_WAIT_FOR_START)
val = !atomic_read(&btDesc->state);
else
val = atomic_read(&btDesc->tx_in_progress);
if (timeout++ >= BT_TIMEOUT_US/10) {
printf(" %s timed out \n", __func__);
return -ETIMEDOUT;
}
} while (val);
return 0;
}
static int initialize_nvm(struct bt_descriptor *btDesc,
void *fileaddr, u32 filesize)
{
unsigned char *buffer = fileaddr;
int bytes_read = 0, bytes_consumed = 0, ret;
HCI_Packet_t *hci_packet = NULL;
while(bytes_consumed < filesize )
{
bytes_read = (filesize - bytes_consumed) > NVM_SEGMENT_SIZE ?
NVM_SEGMENT_SIZE : filesize - bytes_consumed;
/* Constructing a HCI Packet to write NVM Segments to BTSS */
hci_packet = (HCI_Packet_t*)malloc(sizeof(HCI_Packet_t) +
NVM_SEGMENT_SIZE);
if(!hci_packet)
{
printf("Cannot allocate memory to HCI Packet \n");
return -ENOMEM;
}
/* Initializing HCI Packet Header */
hci_packet->HCIPacketType = ptHCICommandPacket;
/* Populating TLV Request Packet in HCI */
LE_UNALIGNED(&(hci_packet->HCIPayload.opcode), TLV_REQ_OPCODE);
LE_UNALIGNED(&(hci_packet->HCIPayload.parameter_total_length),
(bytes_read + DATA_REMAINING_LENGTH));
hci_packet->HCIPayload.command_request = TLV_COMMAND_REQUEST;
hci_packet->HCIPayload.tlv_segment_length = bytes_read;
memcpy(hci_packet->HCIPayload.tlv_segment_data, buffer,
bytes_read);
bt_ipc_sendmsg(btDesc, (u8*)hci_packet,
sizeof(HCI_Packet_t) + bytes_read);
free(hci_packet);
bytes_consumed += bytes_read;
buffer = fileaddr + bytes_consumed;
ret = wait_for_bt_event(btDesc, BT_WAIT_FOR_TX_COMPLETE);
if(ret || *((u8 *)btDesc->buf + TLV_RESPONSE_STATUS_INDEX) != 0)
{
printf( "\n NVM download failed\n");
if (!ret) {
kfree(btDesc->buf);
btDesc->buf = NULL;
}
return -EINVAL;
}
kfree(btDesc->buf);
btDesc->buf = NULL;
}
printf("NVM download successful \n");
bt_ipc_worker(btDesc);
return 0;
}
int send_bt_hci_cmds(struct bt_descriptor *btDesc)
{
int ret, i;
int count = sizeof hci_cmds/ sizeof(unsigned char *);
for (i = 0; i < count; i++) {
bt_ipc_sendmsg(btDesc, hci_cmds[i], sizeof hci_cmds[i]);
ret = wait_for_bt_event(btDesc, BT_WAIT_FOR_TX_COMPLETE);
if (ret)
return ret;
/*btDesc->buf will have response data with length btDesc->len*/
kfree(btDesc->buf);
btDesc->buf = NULL;
}
return 0;
}
int bt_init(void)
{
struct bt_descriptor *btDesc;
int ret;
btDesc = kzalloc(sizeof(*btDesc), GFP_KERNEL);
if (!btDesc)
return -ENOMEM;
bt_ipc_init(btDesc);
enable_btss_lpo_clk();
ret = qti_scm_pas_init_image(PAS_ID, (u32)bt_fw_patchmdt);
if (ret) {
printf("patch auth failed\n");
return ret;
}
printf("patch authenticated successfully\n");
memcpy((void*)BT_RAM_PATCH, (void*)bt_fw_patchb02,
sizeof bt_fw_patchb02);
ret = qti_pas_and_auth_reset(PAS_ID);
if (ret) {
printf("BT out of reset failed\n");
return ret;
}
ret = wait_for_bt_event(btDesc, BT_WAIT_FOR_START);
if (ret)
return ret;
ret = initialize_nvm(btDesc, (void*)mpnv10bin, sizeof mpnv10bin);
if (ret)
return ret;
ret = wait_for_bt_event(btDesc, BT_WAIT_FOR_START);
if (ret)
return ret;
send_bt_hci_cmds(btDesc);
return 0;
}
#endif
void reset_crashdump(void) void reset_crashdump(void)
{ {
unsigned int ret = 0; unsigned int ret = 0;
@ -588,6 +768,9 @@ void board_nand_init(void)
} }
#endif #endif
#ifdef CONFIG_IPQ_BT_SUPPORT
bt_init();
#endif
#ifdef CONFIG_QCA_SPI #ifdef CONFIG_QCA_SPI
int gpio_node; int gpio_node;
gpio_node = fdt_path_offset(gd->fdt_blob, "/spi/spi_gpio"); gpio_node = fdt_path_offset(gd->fdt_blob, "/spi/spi_gpio");

View file

@ -588,4 +588,56 @@ typedef enum {
SMEM_MAX_SIZE = SMEM_SPI_FLASH_ADDR_LEN + 1, SMEM_MAX_SIZE = SMEM_SPI_FLASH_ADDR_LEN + 1,
} smem_mem_type_t; } smem_mem_type_t;
#ifdef CONFIG_IPQ_BT_SUPPORT
#define NVM_SEGMENT_SIZE 243
#define TLV_REQ_OPCODE 0xFC00
#define TLV_COMMAND_REQUEST 0x1E
#define DATA_REMAINING_LENGTH 2
#define TLV_RESPONSE_PACKET_SIZE 8
#define TLV_RESPONSE_STATUS_INDEX 6
#define PACKED_STRUCT __attribute__((__packed__))
#define LE_UNALIGNED(x, y) \
{ \
((u8 *)(x))[0] = ((u8)(((u32)(y)) & 0xFF)); \
((u8 *)(x))[1] = ((u8)((((u32)(y)) >> 8) & 0xFF)); \
}
typedef enum
{
ptHCICommandPacket = 0x01, /* Simple HCI Command Packet */
ptHCIACLDataPacket = 0x02, /* HCI ACL Data Packet Type. */
ptHCISCODataPacket = 0x03, /* HCI SCO Data Packet Type. */
ptHCIeSCODataPacket= 0x03, /* HCI eSCO Data Packet Type. */
ptHCIEventPacket = 0x04, /* HCI Event Packet Type. */
ptHCIAdditional = 0x05 /* Starting Point for Additional*/
} HCI_PacketType_t;
typedef struct _tlv_download_req
{
u16 opcode;
u8 parameter_total_length;
u8 command_request;
u8 tlv_segment_length;
u8 tlv_segment_data[0];
} PACKED_STRUCT tlv_download_req;
typedef struct _tagHCI_Packet_t
{
u8 HCIPacketType;
tlv_download_req HCIPayload;
} PACKED_STRUCT HCI_Packet_t;
typedef enum {
BT_WAIT_FOR_START = 0,
BT_WAIT_FOR_TX_COMPLETE = 1,
BT_WAIT_FOR_STOP = 2,
} bt_wait;
#define BT_TIMEOUT_US 50000
int bt_init(void);
#endif
#endif /* _IPQ5018_CDP_H_ */ #endif /* _IPQ5018_CDP_H_ */

View file

@ -425,4 +425,6 @@ extern loff_t board_env_size;
#define INTERNAL_96MHZ #define INTERNAL_96MHZ
/*#define CONFIG_IPQ_BT_SUPPORT*/
#endif /* _IPQ5018_H */ #endif /* _IPQ5018_H */