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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/usb/isp1760/isp1760-hcd.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/usb/isp1760/isp1760-hcd.h')
-rw-r--r--drivers/usb/isp1760/isp1760-hcd.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/usb/isp1760/isp1760-hcd.h b/drivers/usb/isp1760/isp1760-hcd.h
new file mode 100644
index 0000000000..ee3063a34d
--- /dev/null
+++ b/drivers/usb/isp1760/isp1760-hcd.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ISP1760_HCD_H_
+#define _ISP1760_HCD_H_
+
+#include <linux/spinlock.h>
+#include <linux/regmap.h>
+
+#include "isp1760-regs.h"
+
+struct isp1760_qh;
+struct isp1760_qtd;
+struct resource;
+struct usb_hcd;
+
+struct isp1760_slotinfo {
+ struct isp1760_qh *qh;
+ struct isp1760_qtd *qtd;
+ unsigned long timestamp;
+};
+
+/* chip memory management */
+#define ISP176x_BLOCK_MAX (32 + 20 + 4)
+#define ISP176x_BLOCK_NUM 3
+
+struct isp1760_memory_layout {
+ unsigned int blocks[ISP176x_BLOCK_NUM];
+ unsigned int blocks_size[ISP176x_BLOCK_NUM];
+
+ unsigned int slot_num;
+ unsigned int payload_blocks;
+ unsigned int payload_area_size;
+};
+
+struct isp1760_memory_chunk {
+ unsigned int start;
+ unsigned int size;
+ unsigned int free;
+};
+
+enum isp1760_queue_head_types {
+ QH_CONTROL,
+ QH_BULK,
+ QH_INTERRUPT,
+ QH_END
+};
+
+struct isp1760_hcd {
+ struct usb_hcd *hcd;
+
+ void __iomem *base;
+
+ struct regmap *regs;
+ struct regmap_field *fields[HC_FIELD_MAX];
+
+ bool is_isp1763;
+ const struct isp1760_memory_layout *memory_layout;
+
+ spinlock_t lock;
+ struct isp1760_slotinfo *atl_slots;
+ int atl_done_map;
+ struct isp1760_slotinfo *int_slots;
+ int int_done_map;
+ struct isp1760_memory_chunk memory_pool[ISP176x_BLOCK_MAX];
+ struct list_head qh_list[QH_END];
+
+ /* periodic schedule support */
+#define DEFAULT_I_TDPS 1024
+ unsigned periodic_size;
+ unsigned i_thresh;
+ unsigned long reset_done;
+ unsigned long next_statechange;
+};
+
+#ifdef CONFIG_USB_ISP1760_HCD
+int isp1760_hcd_register(struct isp1760_hcd *priv, struct resource *mem,
+ int irq, unsigned long irqflags, struct device *dev);
+void isp1760_hcd_unregister(struct isp1760_hcd *priv);
+
+int isp1760_init_kmem_once(void);
+void isp1760_deinit_kmem_cache(void);
+#else
+static inline int isp1760_hcd_register(struct isp1760_hcd *priv,
+ struct resource *mem,
+ int irq, unsigned long irqflags,
+ struct device *dev)
+{
+ return 0;
+}
+
+static inline void isp1760_hcd_unregister(struct isp1760_hcd *priv)
+{
+}
+
+static inline int isp1760_init_kmem_once(void)
+{
+ return 0;
+}
+
+static inline void isp1760_deinit_kmem_cache(void)
+{
+}
+#endif
+
+#endif /* _ISP1760_HCD_H_ */