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path: root/drivers/net/wireless/ath/ath10k/pci.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath10k/pci.c')
-rw-r--r--drivers/net/wireless/ath/ath10k/pci.c170
1 files changed, 152 insertions, 18 deletions
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 7abb8367119a..e6972b09333e 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -58,12 +58,27 @@ MODULE_PARM_DESC(reset_mode, "0: auto, 1: warm only (default: 0)");
#define ATH10K_PCI_NUM_WARM_RESET_ATTEMPTS 3
#define QCA988X_2_0_DEVICE_ID (0x003c)
+#define QCA6174_2_1_DEVICE_ID (0x003e)
static const struct pci_device_id ath10k_pci_id_table[] = {
{ PCI_VDEVICE(ATHEROS, QCA988X_2_0_DEVICE_ID) }, /* PCI-E QCA988X V2 */
+ { PCI_VDEVICE(ATHEROS, QCA6174_2_1_DEVICE_ID) }, /* PCI-E QCA6174 V2.1 */
{0}
};
+static const struct ath10k_pci_supp_chip ath10k_pci_supp_chips[] = {
+ /* QCA988X pre 2.0 chips are not supported because they need some nasty
+ * hacks. ath10k doesn't have them and these devices crash horribly
+ * because of that.
+ */
+ { QCA988X_2_0_DEVICE_ID, QCA988X_HW_2_0_CHIP_ID_REV },
+ { QCA6174_2_1_DEVICE_ID, QCA6174_HW_2_1_CHIP_ID_REV },
+ { QCA6174_2_1_DEVICE_ID, QCA6174_HW_2_2_CHIP_ID_REV },
+ { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_0_CHIP_ID_REV },
+ { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_1_CHIP_ID_REV },
+ { QCA6174_2_1_DEVICE_ID, QCA6174_HW_3_2_CHIP_ID_REV },
+};
+
static void ath10k_pci_buffer_cleanup(struct ath10k *ar);
static int ath10k_pci_cold_reset(struct ath10k *ar);
static int ath10k_pci_warm_reset(struct ath10k *ar);
@@ -395,7 +410,7 @@ static int __ath10k_pci_rx_post_buf(struct ath10k_pci_pipe *pipe)
return -EIO;
}
- ATH10K_SKB_CB(skb)->paddr = paddr;
+ ATH10K_SKB_RXCB(skb)->paddr = paddr;
ret = __ath10k_ce_rx_post_buf(ce_pipe, skb, paddr);
if (ret) {
@@ -864,7 +879,7 @@ static void ath10k_pci_ce_recv_data(struct ath10k_ce_pipe *ce_state)
&flags) == 0) {
skb = transfer_context;
max_nbytes = skb->len + skb_tailroom(skb);
- dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
+ dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
max_nbytes, DMA_FROM_DEVICE);
if (unlikely(max_nbytes < nbytes)) {
@@ -1230,7 +1245,7 @@ static void ath10k_pci_rx_pipe_cleanup(struct ath10k_pci_pipe *pci_pipe)
ce_ring->per_transfer_context[i] = NULL;
- dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
+ dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
skb->len + skb_tailroom(skb),
DMA_FROM_DEVICE);
dev_kfree_skb_any(skb);
@@ -1498,6 +1513,35 @@ static int ath10k_pci_wake_target_cpu(struct ath10k *ar)
return 0;
}
+static int ath10k_pci_get_num_banks(struct ath10k *ar)
+{
+ struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+ switch (ar_pci->pdev->device) {
+ case QCA988X_2_0_DEVICE_ID:
+ return 1;
+ case QCA6174_2_1_DEVICE_ID:
+ switch (MS(ar->chip_id, SOC_CHIP_ID_REV)) {
+ case QCA6174_HW_1_0_CHIP_ID_REV:
+ case QCA6174_HW_1_1_CHIP_ID_REV:
+ return 3;
+ case QCA6174_HW_1_3_CHIP_ID_REV:
+ return 2;
+ case QCA6174_HW_2_1_CHIP_ID_REV:
+ case QCA6174_HW_2_2_CHIP_ID_REV:
+ return 6;
+ case QCA6174_HW_3_0_CHIP_ID_REV:
+ case QCA6174_HW_3_1_CHIP_ID_REV:
+ case QCA6174_HW_3_2_CHIP_ID_REV:
+ return 9;
+ }
+ break;
+ }
+
+ ath10k_warn(ar, "unknown number of banks, assuming 1\n");
+ return 1;
+}
+
static int ath10k_pci_init_config(struct ath10k *ar)
{
u32 interconnect_targ_addr;
@@ -1608,7 +1652,8 @@ static int ath10k_pci_init_config(struct ath10k *ar)
/* first bank is switched to IRAM */
ealloc_value |= ((HI_EARLY_ALLOC_MAGIC << HI_EARLY_ALLOC_MAGIC_SHIFT) &
HI_EARLY_ALLOC_MAGIC_MASK);
- ealloc_value |= ((1 << HI_EARLY_ALLOC_IRAM_BANKS_SHIFT) &
+ ealloc_value |= ((ath10k_pci_get_num_banks(ar) <<
+ HI_EARLY_ALLOC_IRAM_BANKS_SHIFT) &
HI_EARLY_ALLOC_IRAM_BANKS_MASK);
ret = ath10k_pci_diag_write32(ar, ealloc_targ_addr, ealloc_value);
@@ -1804,12 +1849,12 @@ static int ath10k_pci_warm_reset(struct ath10k *ar)
return 0;
}
-static int ath10k_pci_chip_reset(struct ath10k *ar)
+static int ath10k_pci_qca988x_chip_reset(struct ath10k *ar)
{
int i, ret;
u32 val;
- ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot chip reset\n");
+ ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot 988x chip reset\n");
/* Some hardware revisions (e.g. CUS223v2) has issues with cold reset.
* It is thus preferred to use warm reset which is safer but may not be
@@ -1873,11 +1918,53 @@ static int ath10k_pci_chip_reset(struct ath10k *ar)
return ret;
}
- ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot chip reset complete (cold)\n");
+ ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca988x chip reset complete (cold)\n");
+
+ return 0;
+}
+
+static int ath10k_pci_qca6174_chip_reset(struct ath10k *ar)
+{
+ int ret;
+
+ ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca6174 chip reset\n");
+
+ /* FIXME: QCA6174 requires cold + warm reset to work. */
+
+ ret = ath10k_pci_cold_reset(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to cold reset: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath10k_pci_wait_for_target_init(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to wait for target after cold reset: %d\n",
+ ret);
+ return ret;
+ }
+
+ ret = ath10k_pci_warm_reset(ar);
+ if (ret) {
+ ath10k_warn(ar, "failed to warm reset: %d\n", ret);
+ return ret;
+ }
+
+ ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot qca6174 chip reset complete (cold)\n");
return 0;
}
+static int ath10k_pci_chip_reset(struct ath10k *ar)
+{
+ if (QCA_REV_988X(ar))
+ return ath10k_pci_qca988x_chip_reset(ar);
+ else if (QCA_REV_6174(ar))
+ return ath10k_pci_qca6174_chip_reset(ar);
+ else
+ return -ENOTSUPP;
+}
+
static int ath10k_pci_hif_power_up(struct ath10k *ar)
{
int ret;
@@ -1902,6 +1989,12 @@ static int ath10k_pci_hif_power_up(struct ath10k *ar)
*/
ret = ath10k_pci_chip_reset(ar);
if (ret) {
+ if (ath10k_pci_has_fw_crashed(ar)) {
+ ath10k_warn(ar, "firmware crashed during chip reset\n");
+ ath10k_pci_fw_crashed_clear(ar);
+ ath10k_pci_fw_crashed_dump(ar);
+ }
+
ath10k_err(ar, "failed to reset chip: %d\n", ret);
goto err_sleep;
}
@@ -2033,6 +2126,7 @@ static void ath10k_msi_err_tasklet(unsigned long data)
return;
}
+ ath10k_pci_irq_disable(ar);
ath10k_pci_fw_crashed_clear(ar);
ath10k_pci_fw_crashed_dump(ar);
}
@@ -2102,6 +2196,7 @@ static void ath10k_pci_tasklet(unsigned long data)
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
if (ath10k_pci_has_fw_crashed(ar)) {
+ ath10k_pci_irq_disable(ar);
ath10k_pci_fw_crashed_clear(ar);
ath10k_pci_fw_crashed_dump(ar);
return;
@@ -2344,8 +2439,6 @@ static int ath10k_pci_wait_for_target_init(struct ath10k *ar)
if (val & FW_IND_EVENT_PENDING) {
ath10k_warn(ar, "device has crashed during init\n");
- ath10k_pci_fw_crashed_clear(ar);
- ath10k_pci_fw_crashed_dump(ar);
return -ECOMM;
}
@@ -2476,17 +2569,46 @@ static void ath10k_pci_release(struct ath10k *ar)
pci_disable_device(pdev);
}
+static bool ath10k_pci_chip_is_supported(u32 dev_id, u32 chip_id)
+{
+ const struct ath10k_pci_supp_chip *supp_chip;
+ int i;
+ u32 rev_id = MS(chip_id, SOC_CHIP_ID_REV);
+
+ for (i = 0; i < ARRAY_SIZE(ath10k_pci_supp_chips); i++) {
+ supp_chip = &ath10k_pci_supp_chips[i];
+
+ if (supp_chip->dev_id == dev_id &&
+ supp_chip->rev_id == rev_id)
+ return true;
+ }
+
+ return false;
+}
+
static int ath10k_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_dev)
{
int ret = 0;
struct ath10k *ar;
struct ath10k_pci *ar_pci;
+ enum ath10k_hw_rev hw_rev;
u32 chip_id;
- ar = ath10k_core_create(sizeof(*ar_pci), &pdev->dev,
- ATH10K_BUS_PCI,
- &ath10k_pci_hif_ops);
+ switch (pci_dev->device) {
+ case QCA988X_2_0_DEVICE_ID:
+ hw_rev = ATH10K_HW_QCA988X;
+ break;
+ case QCA6174_2_1_DEVICE_ID:
+ hw_rev = ATH10K_HW_QCA6174;
+ break;
+ default:
+ WARN_ON(1);
+ return -ENOTSUPP;
+ }
+
+ ar = ath10k_core_create(sizeof(*ar_pci), &pdev->dev, ATH10K_BUS_PCI,
+ hw_rev, &ath10k_pci_hif_ops);
if (!ar) {
dev_err(&pdev->dev, "failed to allocate core\n");
return -ENOMEM;
@@ -2515,12 +2637,6 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
goto err_release;
}
- chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
- if (chip_id == 0xffffffff) {
- ath10k_err(ar, "failed to get chip id\n");
- goto err_sleep;
- }
-
ret = ath10k_pci_alloc_pipes(ar);
if (ret) {
ath10k_err(ar, "failed to allocate copy engine pipes: %d\n",
@@ -2547,6 +2663,24 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
goto err_deinit_irq;
}
+ ret = ath10k_pci_chip_reset(ar);
+ if (ret) {
+ ath10k_err(ar, "failed to reset chip: %d\n", ret);
+ goto err_free_irq;
+ }
+
+ chip_id = ath10k_pci_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
+ if (chip_id == 0xffffffff) {
+ ath10k_err(ar, "failed to get chip id\n");
+ goto err_free_irq;
+ }
+
+ if (!ath10k_pci_chip_is_supported(pdev->device, chip_id)) {
+ ath10k_err(ar, "device %04x with chip_id %08x isn't supported\n",
+ pdev->device, chip_id);
+ goto err_sleep;
+ }
+
ath10k_pci_sleep(ar);
ret = ath10k_core_register(ar, chip_id);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.