diff options
author | Govind Singh <govinds@codeaurora.org> | 2020-08-13 12:04:24 +0300 |
---|---|---|
committer | Kalle Valo <kvalo@codeaurora.org> | 2020-08-17 13:07:12 +0300 |
commit | 1399fb87ea3e96d26398a16cb95dc395a68c51bc (patch) | |
tree | 916546acf9afae73c2a13c464945176f56db14a9 /drivers/net/wireless/ath/ath11k/pci.c | |
parent | b8246f88468440ac596238ff402bcb636053d657 (diff) |
ath11k: register MHI controller device for QCA6390
Modem Host Interface (MHI) is a communication protocol to communicate with
external Qualcomm modems and Wi-Fi chipsets over high speed peripheral buses.
Even though MHI doesn’t dictate underlying physical layer, protocol and MHI
stack is structured for PCI based devices.
Register directly with MHI subsystem as a MHI device driver for firmware
download to QCA6390.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.1.0.1-01238-QCAHKSWPL_SILICONZ-2
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1597309466-19688-9-git-send-email-kvalo@codeaurora.org
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/pci.c')
-rw-r--r-- | drivers/net/wireless/ath/ath11k/pci.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index ff401d2871f3..6f7789fa23d6 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -9,6 +9,8 @@ #include "pci.h" #include "core.h" +#include "hif.h" +#include "mhi.h" #include "debug.h" #define ATH11K_PCI_BAR_NUM 0 @@ -34,6 +36,40 @@ static const struct ath11k_msi_config msi_config = { }, }; +int ath11k_pci_get_msi_irq(struct device *dev, unsigned int vector) +{ + struct pci_dev *pci_dev = to_pci_dev(dev); + + return pci_irq_vector(pci_dev, vector); +} + +int ath11k_pci_get_user_msi_assignment(struct ath11k_pci *ab_pci, char *user_name, + int *num_vectors, u32 *user_base_data, + u32 *base_vector) +{ + struct ath11k_base *ab = ab_pci->ab; + int idx; + + for (idx = 0; idx < msi_config.total_users; idx++) { + if (strcmp(user_name, msi_config.users[idx].name) == 0) { + *num_vectors = msi_config.users[idx].num_vectors; + *user_base_data = msi_config.users[idx].base_vector + + ab_pci->msi_ep_base_data; + *base_vector = msi_config.users[idx].base_vector; + + ath11k_dbg(ab, ATH11K_DBG_PCI, "Assign MSI to user: %s, num_vectors: %d, user_base_data: %u, base_vector: %u\n", + user_name, *num_vectors, *user_base_data, + *base_vector); + + return 0; + } + } + + ath11k_err(ab, "Failed to find MSI assignment for %s!\n", user_name); + + return -EINVAL; +} + static int ath11k_pci_enable_msi(struct ath11k_pci *ab_pci) { struct ath11k_base *ab = ab_pci->ab; @@ -161,6 +197,32 @@ static void ath11k_pci_free_region(struct ath11k_pci *ab_pci) pci_disable_device(pci_dev); } +static int ath11k_pci_power_up(struct ath11k_base *ab) +{ + struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); + int ret; + + ret = ath11k_mhi_start(ab_pci); + if (ret) { + ath11k_err(ab, "failed to start mhi: %d\n", ret); + return ret; + } + + return 0; +} + +static void ath11k_pci_power_down(struct ath11k_base *ab) +{ + struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); + + ath11k_mhi_stop(ab_pci); +} + +static __maybe_unused const struct ath11k_hif_ops ath11k_pci_hif_ops = { + .power_down = ath11k_pci_power_down, + .power_up = ath11k_pci_power_up, +}; + static int ath11k_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pci_dev) { @@ -212,6 +274,12 @@ static int ath11k_pci_probe(struct pci_dev *pdev, if (ret) goto err_pci_disable_msi; + ret = ath11k_mhi_register(ab_pci); + if (ret) { + ath11k_err(ab, "failed to register mhi: %d\n", ret); + goto err_pci_disable_msi; + } + return 0; err_pci_disable_msi: @@ -232,16 +300,25 @@ static void ath11k_pci_remove(struct pci_dev *pdev) struct ath11k_pci *ab_pci = ath11k_pci_priv(ab); set_bit(ATH11K_FLAG_UNREGISTERING, &ab->dev_flags); + ath11k_mhi_unregister(ab_pci); ath11k_pci_disable_msi(ab_pci); ath11k_pci_free_region(ab_pci); ath11k_core_free(ab); } +static void ath11k_pci_shutdown(struct pci_dev *pdev) +{ + struct ath11k_base *ab = pci_get_drvdata(pdev); + + ath11k_pci_power_down(ab); +} + static struct pci_driver ath11k_pci_driver = { .name = "ath11k_pci", .id_table = ath11k_pci_id_table, .probe = ath11k_pci_probe, .remove = ath11k_pci_remove, + .shutdown = ath11k_pci_shutdown, }; static int ath11k_pci_init(void) |