blob: d4ef45cd06858139d1efdddb1aac5de3ee00a7a7 [file] [log] [blame]
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/dma-mapping.h>
#include "ahb.h"
#include "debug.h"
#include "hif.h"
#include <linux/remoteproc.h>
static const struct of_device_id ath11k_ahb_of_match[] = {
/* TODO: Should we change the compatible string to something similar
* to one that ath10k uses?
*/
{ .compatible = "qcom,ipq8074-wifi",
.data = (void *)ATH11K_HW_IPQ8074,
},
{ .compatible = "qcom,ipq6018-wifi",
.data = (void *)ATH11K_HW_IPQ6018_HW10,
},
{ }
};
MODULE_DEVICE_TABLE(of, ath11k_ahb_of_match);
static const struct ath11k_bus_params ath11k_ahb_bus_params = {
.mhi_support = false,
.m3_fw_support = false,
.fixed_bdf_addr = true,
.fixed_mem_region = true,
};
#define ATH11K_IRQ_CE0_OFFSET 4
static const char *irq_name[ATH11K_IRQ_NUM_MAX] = {
"misc-pulse1",
"misc-latch",
"sw-exception",
"watchdog",
"ce0",
"ce1",
"ce2",
"ce3",
"ce4",
"ce5",
"ce6",
"ce7",
"ce8",
"ce9",
"ce10",
"ce11",
"host2wbm-desc-feed",
"host2reo-re-injection",
"host2reo-command",
"host2rxdma-monitor-ring3",
"host2rxdma-monitor-ring2",
"host2rxdma-monitor-ring1",
"reo2ost-exception",
"wbm2host-rx-release",
"reo2host-status",
"reo2host-destination-ring4",
"reo2host-destination-ring3",
"reo2host-destination-ring2",
"reo2host-destination-ring1",
"rxdma2host-monitor-destination-mac3",
"rxdma2host-monitor-destination-mac2",
"rxdma2host-monitor-destination-mac1",
"ppdu-end-interrupts-mac3",
"ppdu-end-interrupts-mac2",
"ppdu-end-interrupts-mac1",
"rxdma2host-monitor-status-ring-mac3",
"rxdma2host-monitor-status-ring-mac2",
"rxdma2host-monitor-status-ring-mac1",
"host2rxdma-host-buf-ring-mac3",
"host2rxdma-host-buf-ring-mac2",
"host2rxdma-host-buf-ring-mac1",
"rxdma2host-destination-ring-mac3",
"rxdma2host-destination-ring-mac2",
"rxdma2host-destination-ring-mac1",
"host2tcl-input-ring4",
"host2tcl-input-ring3",
"host2tcl-input-ring2",
"host2tcl-input-ring1",
"wbm2host-tx-completions-ring3",
"wbm2host-tx-completions-ring2",
"wbm2host-tx-completions-ring1",
"tcl2host-status-ring",
};
/* enum ext_irq_num - irq numbers that can be used by external modules
* like datapath
*/
enum ext_irq_num {
host2wbm_desc_feed = 16,
host2reo_re_injection,
host2reo_command,
host2rxdma_monitor_ring3,
host2rxdma_monitor_ring2,
host2rxdma_monitor_ring1,
reo2host_exception,
wbm2host_rx_release,
reo2host_status,
reo2host_destination_ring4,
reo2host_destination_ring3,
reo2host_destination_ring2,
reo2host_destination_ring1,
rxdma2host_monitor_destination_mac3,
rxdma2host_monitor_destination_mac2,
rxdma2host_monitor_destination_mac1,
ppdu_end_interrupts_mac3,
ppdu_end_interrupts_mac2,
ppdu_end_interrupts_mac1,
rxdma2host_monitor_status_ring_mac3,
rxdma2host_monitor_status_ring_mac2,
rxdma2host_monitor_status_ring_mac1,
host2rxdma_host_buf_ring_mac3,
host2rxdma_host_buf_ring_mac2,
host2rxdma_host_buf_ring_mac1,
rxdma2host_destination_ring_mac3,
rxdma2host_destination_ring_mac2,
rxdma2host_destination_ring_mac1,
host2tcl_input_ring4,
host2tcl_input_ring3,
host2tcl_input_ring2,
host2tcl_input_ring1,
wbm2host_tx_completions_ring3,
wbm2host_tx_completions_ring2,
wbm2host_tx_completions_ring1,
tcl2host_status_ring,
};
static inline u32 ath11k_ahb_read32(struct ath11k_base *ab, u32 offset)
{
return ioread32(ab->mem + offset);
}
static inline void ath11k_ahb_write32(struct ath11k_base *ab, u32 offset, u32 value)
{
iowrite32(value, ab->mem + offset);
}
static void ath11k_ahb_kill_tasklets(struct ath11k_base *ab)
{
int i;
for (i = 0; i < ab->hw_params.ce_count; i++) {
struct ath11k_ce_pipe *ce_pipe = &ab->ce.ce_pipe[i];
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
tasklet_kill(&ce_pipe->intr_tq);
}
}
static void ath11k_ahb_ext_grp_disable(struct ath11k_ext_irq_grp *irq_grp)
{
int i;
for (i = 0; i < irq_grp->num_irq; i++)
disable_irq_nosync(irq_grp->ab->irq_num[irq_grp->irqs[i]]);
}
static void __ath11k_ahb_ext_irq_disable(struct ath11k_base *ab)
{
int i;
for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
ath11k_ahb_ext_grp_disable(irq_grp);
napi_synchronize(&irq_grp->napi);
napi_disable(&irq_grp->napi);
}
}
static void ath11k_ahb_ext_grp_enable(struct ath11k_ext_irq_grp *irq_grp)
{
int i;
for (i = 0; i < irq_grp->num_irq; i++)
enable_irq(irq_grp->ab->irq_num[irq_grp->irqs[i]]);
}
static void ath11k_ahb_setbit32(struct ath11k_base *ab, u8 bit, u32 offset)
{
u32 val;
val = ath11k_ahb_read32(ab, offset);
ath11k_ahb_write32(ab, offset, val | BIT(bit));
}
static void ath11k_ahb_clearbit32(struct ath11k_base *ab, u8 bit, u32 offset)
{
u32 val;
val = ath11k_ahb_read32(ab, offset);
ath11k_ahb_write32(ab, offset, val & ~BIT(bit));
}
static void ath11k_ahb_ce_irq_enable(struct ath11k_base *ab, u16 ce_id)
{
const struct ce_pipe_config *ce_config;
ce_config = &ab->hw_params.target_ce_config[ce_id];
if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_OUT)
ath11k_ahb_setbit32(ab, ce_id, CE_HOST_IE_ADDRESS);
if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_IN) {
ath11k_ahb_setbit32(ab, ce_id, CE_HOST_IE_2_ADDRESS);
ath11k_ahb_setbit32(ab, ce_id + CE_HOST_IE_3_SHIFT,
CE_HOST_IE_3_ADDRESS);
}
}
static void ath11k_ahb_ce_irq_disable(struct ath11k_base *ab, u16 ce_id)
{
const struct ce_pipe_config *ce_config;
ce_config = &ab->hw_params.target_ce_config[ce_id];
if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_OUT)
ath11k_ahb_clearbit32(ab, ce_id, CE_HOST_IE_ADDRESS);
if (__le32_to_cpu(ce_config->pipedir) & PIPEDIR_IN) {
ath11k_ahb_clearbit32(ab, ce_id, CE_HOST_IE_2_ADDRESS);
ath11k_ahb_clearbit32(ab, ce_id + CE_HOST_IE_3_SHIFT,
CE_HOST_IE_3_ADDRESS);
}
}
static void ath11k_ahb_sync_ce_irqs(struct ath11k_base *ab)
{
int i;
int irq_idx;
for (i = 0; i < ab->hw_params.ce_count; i++) {
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
irq_idx = ATH11K_IRQ_CE0_OFFSET + i;
synchronize_irq(ab->irq_num[irq_idx]);
}
}
static void ath11k_ahb_sync_ext_irqs(struct ath11k_base *ab)
{
int i, j;
int irq_idx;
for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
for (j = 0; j < irq_grp->num_irq; j++) {
irq_idx = irq_grp->irqs[j];
synchronize_irq(ab->irq_num[irq_idx]);
}
}
}
static void ath11k_ahb_ce_irqs_enable(struct ath11k_base *ab)
{
int i;
for (i = 0; i < ab->hw_params.ce_count; i++) {
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
ath11k_ahb_ce_irq_enable(ab, i);
}
}
static void ath11k_ahb_ce_irqs_disable(struct ath11k_base *ab)
{
int i;
for (i = 0; i < ab->hw_params.ce_count; i++) {
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
ath11k_ahb_ce_irq_disable(ab, i);
}
}
static int ath11k_ahb_start(struct ath11k_base *ab)
{
ath11k_ahb_ce_irqs_enable(ab);
ath11k_ce_rx_post_buf(ab);
return 0;
}
static void ath11k_ahb_ext_irq_enable(struct ath11k_base *ab)
{
int i;
for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
napi_enable(&irq_grp->napi);
ath11k_ahb_ext_grp_enable(irq_grp);
}
}
static void ath11k_ahb_ext_irq_disable(struct ath11k_base *ab)
{
__ath11k_ahb_ext_irq_disable(ab);
ath11k_ahb_sync_ext_irqs(ab);
}
static void ath11k_ahb_stop(struct ath11k_base *ab)
{
if (!test_bit(ATH11K_FLAG_CRASH_FLUSH, &ab->dev_flags))
ath11k_ahb_ce_irqs_disable(ab);
ath11k_ahb_sync_ce_irqs(ab);
ath11k_ahb_kill_tasklets(ab);
del_timer_sync(&ab->rx_replenish_retry);
ath11k_ce_cleanup_pipes(ab);
}
static int ath11k_ahb_power_up(struct ath11k_base *ab)
{
struct ath11k_ahb *ab_ahb = ath11k_ahb_priv(ab);
int ret;
ret = rproc_boot(ab_ahb->tgt_rproc);
if (ret)
ath11k_err(ab, "failed to boot the remote processor Q6\n");
return ret;
}
static void ath11k_ahb_power_down(struct ath11k_base *ab)
{
struct ath11k_ahb *ab_ahb = ath11k_ahb_priv(ab);
rproc_shutdown(ab_ahb->tgt_rproc);
}
static int ath11k_ahb_fwreset_from_cold_boot(struct ath11k_base *ab)
{
int timeout;
if (ath11k_cold_boot_cal == 0 || ab->qmi.cal_done ||
ab->hw_params.cold_boot_calib == 0)
return 0;
ath11k_dbg(ab, ATH11K_DBG_AHB, "wait for cold boot done\n");
timeout = wait_event_timeout(ab->qmi.cold_boot_waitq,
(ab->qmi.cal_done == 1),
ATH11K_COLD_BOOT_FW_RESET_DELAY);
if (timeout <= 0) {
ath11k_cold_boot_cal = 0;
ath11k_warn(ab, "Coldboot Calibration failed timed out\n");
}
/* reset the firmware */
ath11k_ahb_power_down(ab);
ath11k_ahb_power_up(ab);
ath11k_dbg(ab, ATH11K_DBG_AHB, "exited from cold boot mode\n");
return 0;
}
static void ath11k_ahb_init_qmi_ce_config(struct ath11k_base *ab)
{
struct ath11k_qmi_ce_cfg *cfg = &ab->qmi.ce_cfg;
cfg->tgt_ce_len = ab->hw_params.target_ce_count;
cfg->tgt_ce = ab->hw_params.target_ce_config;
cfg->svc_to_ce_map_len = ab->hw_params.svc_to_ce_map_len;
cfg->svc_to_ce_map = ab->hw_params.svc_to_ce_map;
ab->qmi.service_ins_id = ATH11K_QMI_WLFW_SERVICE_INS_ID_V01_IPQ8074;
}
static void ath11k_ahb_free_ext_irq(struct ath11k_base *ab)
{
int i, j;
for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
for (j = 0; j < irq_grp->num_irq; j++)
free_irq(ab->irq_num[irq_grp->irqs[j]], irq_grp);
}
}
static void ath11k_ahb_free_irq(struct ath11k_base *ab)
{
int irq_idx;
int i;
for (i = 0; i < ab->hw_params.ce_count; i++) {
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
irq_idx = ATH11K_IRQ_CE0_OFFSET + i;
free_irq(ab->irq_num[irq_idx], &ab->ce.ce_pipe[i]);
}
ath11k_ahb_free_ext_irq(ab);
}
static void ath11k_ahb_ce_tasklet(struct tasklet_struct *t)
{
struct ath11k_ce_pipe *ce_pipe = from_tasklet(ce_pipe, t, intr_tq);
ath11k_ce_per_engine_service(ce_pipe->ab, ce_pipe->pipe_num);
ath11k_ahb_ce_irq_enable(ce_pipe->ab, ce_pipe->pipe_num);
}
static irqreturn_t ath11k_ahb_ce_interrupt_handler(int irq, void *arg)
{
struct ath11k_ce_pipe *ce_pipe = arg;
/* last interrupt received for this CE */
ce_pipe->timestamp = jiffies;
ath11k_ahb_ce_irq_disable(ce_pipe->ab, ce_pipe->pipe_num);
tasklet_schedule(&ce_pipe->intr_tq);
return IRQ_HANDLED;
}
static int ath11k_ahb_ext_grp_napi_poll(struct napi_struct *napi, int budget)
{
struct ath11k_ext_irq_grp *irq_grp = container_of(napi,
struct ath11k_ext_irq_grp,
napi);
struct ath11k_base *ab = irq_grp->ab;
int work_done;
work_done = ath11k_dp_service_srng(ab, irq_grp, budget);
if (work_done < budget) {
napi_complete_done(napi, work_done);
ath11k_ahb_ext_grp_enable(irq_grp);
}
if (work_done > budget)
work_done = budget;
return work_done;
}
static irqreturn_t ath11k_ahb_ext_interrupt_handler(int irq, void *arg)
{
struct ath11k_ext_irq_grp *irq_grp = arg;
/* last interrupt received for this group */
irq_grp->timestamp = jiffies;
ath11k_ahb_ext_grp_disable(irq_grp);
napi_schedule(&irq_grp->napi);
return IRQ_HANDLED;
}
static int ath11k_ahb_ext_irq_config(struct ath11k_base *ab)
{
struct ath11k_hw_params *hw = &ab->hw_params;
int i, j;
int irq;
int ret;
for (i = 0; i < ATH11K_EXT_IRQ_GRP_NUM_MAX; i++) {
struct ath11k_ext_irq_grp *irq_grp = &ab->ext_irq_grp[i];
u32 num_irq = 0;
irq_grp->ab = ab;
irq_grp->grp_id = i;
init_dummy_netdev(&irq_grp->napi_ndev);
netif_napi_add(&irq_grp->napi_ndev, &irq_grp->napi,
ath11k_ahb_ext_grp_napi_poll, NAPI_POLL_WEIGHT);
for (j = 0; j < ATH11K_EXT_IRQ_NUM_MAX; j++) {
if (ab->hw_params.ring_mask->tx[i] & BIT(j)) {
irq_grp->irqs[num_irq++] =
wbm2host_tx_completions_ring1 - j;
}
if (ab->hw_params.ring_mask->rx[i] & BIT(j)) {
irq_grp->irqs[num_irq++] =
reo2host_destination_ring1 - j;
}
if (ab->hw_params.ring_mask->rx_err[i] & BIT(j))
irq_grp->irqs[num_irq++] = reo2host_exception;
if (ab->hw_params.ring_mask->rx_wbm_rel[i] & BIT(j))
irq_grp->irqs[num_irq++] = wbm2host_rx_release;
if (ab->hw_params.ring_mask->reo_status[i] & BIT(j))
irq_grp->irqs[num_irq++] = reo2host_status;
if (j < ab->hw_params.max_radios) {
if (ab->hw_params.ring_mask->rxdma2host[i] & BIT(j)) {
irq_grp->irqs[num_irq++] =
rxdma2host_destination_ring_mac1 -
ath11k_hw_get_mac_from_pdev_id(hw, j);
}
if (ab->hw_params.ring_mask->host2rxdma[i] & BIT(j)) {
irq_grp->irqs[num_irq++] =
host2rxdma_host_buf_ring_mac1 -
ath11k_hw_get_mac_from_pdev_id(hw, j);
}
if (ab->hw_params.ring_mask->rx_mon_status[i] & BIT(j)) {
irq_grp->irqs[num_irq++] =
ppdu_end_interrupts_mac1 -
ath11k_hw_get_mac_from_pdev_id(hw, j);
irq_grp->irqs[num_irq++] =
rxdma2host_monitor_status_ring_mac1 -
ath11k_hw_get_mac_from_pdev_id(hw, j);
}
}
}
irq_grp->num_irq = num_irq;
for (j = 0; j < irq_grp->num_irq; j++) {
int irq_idx = irq_grp->irqs[j];
irq = platform_get_irq_byname(ab->pdev,
irq_name[irq_idx]);
ab->irq_num[irq_idx] = irq;
irq_set_status_flags(irq, IRQ_NOAUTOEN | IRQ_DISABLE_UNLAZY);
ret = request_irq(irq, ath11k_ahb_ext_interrupt_handler,
IRQF_TRIGGER_RISING,
irq_name[irq_idx], irq_grp);
if (ret) {
ath11k_err(ab, "failed request_irq for %d\n",
irq);
}
}
}
return 0;
}
static int ath11k_ahb_config_irq(struct ath11k_base *ab)
{
int irq, irq_idx, i;
int ret;
/* Configure CE irqs */
for (i = 0; i < ab->hw_params.ce_count; i++) {
struct ath11k_ce_pipe *ce_pipe = &ab->ce.ce_pipe[i];
if (ath11k_ce_get_attr_flags(ab, i) & CE_ATTR_DIS_INTR)
continue;
irq_idx = ATH11K_IRQ_CE0_OFFSET + i;
tasklet_setup(&ce_pipe->intr_tq, ath11k_ahb_ce_tasklet);
irq = platform_get_irq_byname(ab->pdev, irq_name[irq_idx]);
ret = request_irq(irq, ath11k_ahb_ce_interrupt_handler,
IRQF_TRIGGER_RISING, irq_name[irq_idx],
ce_pipe);
if (ret)
return ret;
ab->irq_num[irq_idx] = irq;
}
/* Configure external interrupts */
ret = ath11k_ahb_ext_irq_config(ab);
return ret;
}
static int ath11k_ahb_map_service_to_pipe(struct ath11k_base *ab, u16 service_id,
u8 *ul_pipe, u8 *dl_pipe)
{
const struct service_to_pipe *entry;
bool ul_set = false, dl_set = false;
int i;
for (i = 0; i < ab->hw_params.svc_to_ce_map_len; i++) {
entry = &ab->hw_params.svc_to_ce_map[i];
if (__le32_to_cpu(entry->service_id) != service_id)
continue;
switch (__le32_to_cpu(entry->pipedir)) {
case PIPEDIR_NONE:
break;
case PIPEDIR_IN:
WARN_ON(dl_set);
*dl_pipe = __le32_to_cpu(entry->pipenum);
dl_set = true;
break;
case PIPEDIR_OUT:
WARN_ON(ul_set);
*ul_pipe = __le32_to_cpu(entry->pipenum);
ul_set = true;
break;
case PIPEDIR_INOUT:
WARN_ON(dl_set);
WARN_ON(ul_set);
*dl_pipe = __le32_to_cpu(entry->pipenum);
*ul_pipe = __le32_to_cpu(entry->pipenum);
dl_set = true;
ul_set = true;
break;
}
}
if (WARN_ON(!ul_set || !dl_set))
return -ENOENT;
return 0;
}
static const struct ath11k_hif_ops ath11k_ahb_hif_ops = {
.start = ath11k_ahb_start,
.stop = ath11k_ahb_stop,
.read32 = ath11k_ahb_read32,
.write32 = ath11k_ahb_write32,
.irq_enable = ath11k_ahb_ext_irq_enable,
.irq_disable = ath11k_ahb_ext_irq_disable,
.map_service_to_pipe = ath11k_ahb_map_service_to_pipe,
.power_down = ath11k_ahb_power_down,
.power_up = ath11k_ahb_power_up,
};
static int ath11k_core_get_rproc(struct ath11k_base *ab)
{
struct ath11k_ahb *ab_ahb = ath11k_ahb_priv(ab);
struct device *dev = ab->dev;
struct rproc *prproc;
phandle rproc_phandle;
if (of_property_read_u32(dev->of_node, "qcom,rproc", &rproc_phandle)) {
ath11k_err(ab, "failed to get q6_rproc handle\n");
return -ENOENT;
}
prproc = rproc_get_by_phandle(rproc_phandle);
if (!prproc) {
ath11k_err(ab, "failed to get rproc\n");
return -EINVAL;
}
ab_ahb->tgt_rproc = prproc;
return 0;
}
static int ath11k_ahb_probe(struct platform_device *pdev)
{
struct ath11k_base *ab;
const struct of_device_id *of_id;
struct resource *mem_res;
void __iomem *mem;
int ret;
of_id = of_match_device(ath11k_ahb_of_match, &pdev->dev);
if (!of_id) {
dev_err(&pdev->dev, "failed to find matching device tree id\n");
return -EINVAL;
}
mem = devm_platform_get_and_ioremap_resource(pdev, 0, &mem_res);
if (IS_ERR(mem)) {
dev_err(&pdev->dev, "ioremap error\n");
return PTR_ERR(mem);
}
ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (ret) {
dev_err(&pdev->dev, "failed to set 32-bit consistent dma\n");
return ret;
}
ab = ath11k_core_alloc(&pdev->dev, sizeof(struct ath11k_ahb),
ATH11K_BUS_AHB,
&ath11k_ahb_bus_params);
if (!ab) {
dev_err(&pdev->dev, "failed to allocate ath11k base\n");
return -ENOMEM;
}
ab->hif.ops = &ath11k_ahb_hif_ops;
ab->pdev = pdev;
ab->hw_rev = (enum ath11k_hw_rev)of_id->data;
ab->mem = mem;
ab->mem_len = resource_size(mem_res);
platform_set_drvdata(pdev, ab);
ret = ath11k_core_pre_init(ab);
if (ret)
goto err_core_free;
ret = ath11k_hal_srng_init(ab);
if (ret)
goto err_core_free;
ret = ath11k_ce_alloc_pipes(ab);
if (ret) {
ath11k_err(ab, "failed to allocate ce pipes: %d\n", ret);
goto err_hal_srng_deinit;
}
ath11k_ahb_init_qmi_ce_config(ab);
ret = ath11k_core_get_rproc(ab);
if (ret) {
ath11k_err(ab, "failed to get rproc: %d\n", ret);
goto err_ce_free;
}
ret = ath11k_core_init(ab);
if (ret) {
ath11k_err(ab, "failed to init core: %d\n", ret);
goto err_ce_free;
}
ret = ath11k_ahb_config_irq(ab);
if (ret) {
ath11k_err(ab, "failed to configure irq: %d\n", ret);
goto err_ce_free;
}
ath11k_ahb_fwreset_from_cold_boot(ab);
return 0;
err_ce_free:
ath11k_ce_free_pipes(ab);
err_hal_srng_deinit:
ath11k_hal_srng_deinit(ab);
err_core_free:
ath11k_core_free(ab);
platform_set_drvdata(pdev, NULL);
return ret;
}
static int ath11k_ahb_remove(struct platform_device *pdev)
{
struct ath11k_base *ab = platform_get_drvdata(pdev);
unsigned long left;
if (test_bit(ATH11K_FLAG_QMI_FAIL, &ab->dev_flags)) {
ath11k_ahb_power_down(ab);
ath11k_debugfs_soc_destroy(ab);
ath11k_qmi_deinit_service(ab);
goto qmi_fail;
}
reinit_completion(&ab->driver_recovery);
if (test_bit(ATH11K_FLAG_RECOVERY, &ab->dev_flags)) {
left = wait_for_completion_timeout(&ab->driver_recovery,
ATH11K_AHB_RECOVERY_TIMEOUT);
if (!left)
ath11k_warn(ab, "failed to receive recovery response completion\n");
}
set_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags);
cancel_work_sync(&ab->restart_work);
ath11k_core_deinit(ab);
qmi_fail:
ath11k_ahb_free_irq(ab);
ath11k_hal_srng_deinit(ab);
ath11k_ce_free_pipes(ab);
ath11k_core_free(ab);
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver ath11k_ahb_driver = {
.driver = {
.name = "ath11k",
.of_match_table = ath11k_ahb_of_match,
},
.probe = ath11k_ahb_probe,
.remove = ath11k_ahb_remove,
};
static int ath11k_ahb_init(void)
{
return platform_driver_register(&ath11k_ahb_driver);
}
module_init(ath11k_ahb_init);
static void ath11k_ahb_exit(void)
{
platform_driver_unregister(&ath11k_ahb_driver);
}
module_exit(ath11k_ahb_exit);
MODULE_DESCRIPTION("Driver support for Qualcomm Technologies 802.11ax WLAN AHB devices");
MODULE_LICENSE("Dual BSD/GPL");