static int
athp_pci_detach(device_t dev)
{
struct ath10k_pci *ar_pci = device_get_softc(dev);
struct ath10k *ar = &ar_pci->sc_sc;
ath10k_warn(ar, "%s: called\n", __func__);
/* Signal things we're going down.. */
ATHP_LOCK(ar);
ar->sc_invalid = 1;
ATHP_UNLOCK(ar);
/* Shutdown ioctl handler */
athp_ioctl_teardown(ar);
/* XXX TODO: synchronise with running things first */
/*
* Do a config read to clear pre-existing pci error status.
*/
(void) pci_read_config(dev, PCIR_COMMAND, 4);
/* stop/free the core - this detaches net80211 state */
ath10k_core_unregister(ar);
/* kill tasklet(s) */
/* deinit irq - stop getting more interrupts */
ath10k_pci_deinit_irq(ar_pci);
/* ce deinit */
ath10k_pci_ce_deinit(ar);
/* free pipes */
ath10k_pci_free_pipes(ar);
/* free HTT RX buffers */
ath10k_htt_rx_free_desc(ar, &ar->htt);
/* pci release */
/* sleep sync */
/* buffers */
athp_pci_free_bufs(ar_pci);
/* core itself - destroys taskqueues, etc */
ath10k_core_destroy(ar);
/* Free bus resources */
bus_generic_detach(dev);
/* Tear down interrupt */
ath10k_pci_free_irq(ar_pci);
bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, ar_pci->sc_sr);
/* XXX disable busmastering? */
/* Free BMI buffers */
athp_descdma_free(ar, &ar_pci->sc_bmi_txbuf);
athp_descdma_free(ar, &ar_pci->sc_bmi_rxbuf);
athp_trace_close(ar);
/* Free locks */
mtx_destroy(&ar_pci->ps_mtx);
mtx_destroy(&ar_pci->ce_mtx);
mtx_destroy(&ar->sc_conf_mtx);
mtx_destroy(&ar->sc_data_mtx);
mtx_destroy(&ar->sc_buf_mtx);
mtx_destroy(&ar->sc_dma_mtx);
mtx_destroy(&ar->sc_mtx);
/* Tear down the pipe taskqueue */
if (ar_pci->pipe_taskq) {
taskqueue_drain_all(ar_pci->pipe_taskq);
taskqueue_free(ar_pci->pipe_taskq);
}
return (0);
}
static int ath10k_ahb_probe(struct platform_device *pdev)
{
struct ath10k *ar;
struct ath10k_ahb *ar_ahb;
struct ath10k_pci *ar_pci;
const struct of_device_id *of_id;
enum ath10k_hw_rev hw_rev;
size_t size;
int ret;
struct ath10k_bus_params bus_params;
of_id = of_match_device(ath10k_ahb_of_match, &pdev->dev);
if (!of_id) {
dev_err(&pdev->dev, "failed to find matching device tree id\n");
return -EINVAL;
}
hw_rev = (enum ath10k_hw_rev)of_id->data;
size = sizeof(*ar_pci) + sizeof(*ar_ahb);
ar = ath10k_core_create(size, &pdev->dev, ATH10K_BUS_AHB,
hw_rev, &ath10k_ahb_hif_ops);
if (!ar) {
dev_err(&pdev->dev, "failed to allocate core\n");
return -ENOMEM;
}
ath10k_dbg(ar, ATH10K_DBG_BOOT, "ahb probe\n");
ar_pci = ath10k_pci_priv(ar);
ar_ahb = ath10k_ahb_priv(ar);
ar_ahb->pdev = pdev;
platform_set_drvdata(pdev, ar);
ret = ath10k_ahb_resource_init(ar);
if (ret)
goto err_core_destroy;
ar->dev_id = 0;
ar_pci->mem = ar_ahb->mem;
ar_pci->mem_len = ar_ahb->mem_len;
ar_pci->ar = ar;
ar_pci->ce.bus_ops = &ath10k_ahb_bus_ops;
ar_pci->targ_cpu_to_ce_addr = ath10k_ahb_qca4019_targ_cpu_to_ce_addr;
ar->ce_priv = &ar_pci->ce;
ret = ath10k_pci_setup_resource(ar);
if (ret) {
ath10k_err(ar, "failed to setup resource: %d\n", ret);
goto err_resource_deinit;
}
ath10k_pci_init_napi(ar);
ret = ath10k_ahb_request_irq_legacy(ar);
if (ret)
goto err_free_pipes;
ret = ath10k_ahb_prepare_device(ar);
if (ret)
goto err_free_irq;
ath10k_pci_ce_deinit(ar);
bus_params.dev_type = ATH10K_DEV_TYPE_LL;
bus_params.chip_id = ath10k_ahb_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
if (bus_params.chip_id == 0xffffffff) {
ath10k_err(ar, "failed to get chip id\n");
ret = -ENODEV;
goto err_halt_device;
}
ret = ath10k_core_register(ar, &bus_params);
if (ret) {
ath10k_err(ar, "failed to register driver core: %d\n", ret);
goto err_halt_device;
}
return 0;
err_halt_device:
ath10k_ahb_halt_chip(ar);
ath10k_ahb_clock_disable(ar);
err_free_irq:
ath10k_ahb_release_irq_legacy(ar);
err_free_pipes:
ath10k_pci_free_pipes(ar);
err_resource_deinit:
ath10k_ahb_resource_deinit(ar);
err_core_destroy:
ath10k_core_destroy(ar);
platform_set_drvdata(pdev, NULL);
return ret;
}
