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Diffstat (limited to 'target/linux/adm5120/files/drivers/usb/host/adm5120.h')
-rw-r--r--target/linux/adm5120/files/drivers/usb/host/adm5120.h114
1 files changed, 80 insertions, 34 deletions
diff --git a/target/linux/adm5120/files/drivers/usb/host/adm5120.h b/target/linux/adm5120/files/drivers/usb/host/adm5120.h
index 95616f27a8..370722547e 100644
--- a/target/linux/adm5120/files/drivers/usb/host/adm5120.h
+++ b/target/linux/adm5120/files/drivers/usb/host/adm5120.h
@@ -56,7 +56,8 @@ struct ed {
dma_addr_t dma; /* addr of ED */
struct td *dummy; /* next TD to activate */
- struct list_head urb_list; /* list of our URBs */
+ struct urb_priv *urb_active; /* active URB */
+ struct list_head urb_pending; /* pending URBs */
struct list_head ed_list; /* list of all EDs*/
struct list_head rm_list; /* for remove list */
@@ -65,16 +66,15 @@ struct ed {
struct ed *ed_next; /* on schedule list */
struct ed *ed_prev; /* for non-interrupt EDs */
struct ed *ed_rm_next; /* on rm list */
- struct ed *ed_soft_list; /* on software int list */
- struct list_head td_list; /* "shadow list" of our TDs */
/* create --> IDLE --> OPER --> ... --> IDLE --> destroy
* usually: OPER --> UNLINK --> (IDLE | OPER) --> ...
*/
- u8 state; /* ED_{IDLE,UNLINK,OPER} */
-#define ED_IDLE 0x00 /* NOT linked to HC */
-#define ED_UNLINK 0x01 /* being unlinked from hc */
-#define ED_OPER 0x02 /* IS linked to hc */
+ u8 state;
+#define ED_NEW 0x00 /* just allocated */
+#define ED_IDLE 0x01 /* linked into HC, but not running */
+#define ED_OPER 0x02 /* linked into HC and running */
+#define ED_UNLINK 0x03 /* being unlinked from HC */
u8 type; /* PIPE_{BULK,...} */
@@ -115,16 +115,17 @@ struct td {
#define TD_T_SHIFT 23 /* data toggle state */
#define TD_T_MASK 0x3
#define TD_T (TD_T_MASK << TD_T_SHIFT)
-#define TD_T_DATA0 (0x2 << TD_T_SHIFT) /* DATA0 */
-#define TD_T_DATA1 (0x3 << TD_T_SHIFT) /* DATA1 */
-#define TD_T_CARRY (0x0 << TD_T_SHIFT) /* uses ED_C */
+#define TD_T_DATA0 (0x2 << TD_T_SHIFT) /* DATA0 */
+#define TD_T_DATA1 (0x3 << TD_T_SHIFT) /* DATA1 */
+#define TD_T_CARRY (0x0 << TD_T_SHIFT) /* uses ED_C */
#define TD_T_GET(x) (((x) >> TD_T_SHIFT) & TD_T_MASK)
#define TD_DP_SHIFT 21 /* direction/pid */
#define TD_DP_MASK 0x3
#define TD_DP (TD_DP_MASK << TD_DP_SHIFT)
-#define TD_DP_SETUP (0x0 << TD_DP_SHIFT) /* SETUP pid */
-#define TD_DP_OUT (0x1 << TD_DP_SHIFT) /* OUT pid */
-#define TD_DP_IN (0x2 << TD_DP_SHIFT) /* IN pid */
+#define TD_DP_SETUP (0x0 << TD_DP_SHIFT) /* SETUP pid */
+#define TD_DP_OUT (0x1 << TD_DP_SHIFT) /* OUT pid */
+#define TD_DP_IN (0x2 << TD_DP_SHIFT) /* IN pid */
+#define TD_DP_GET(x) (((x) >> TD_DP_SHIFT) & TD_DP_MASK)
#define TD_ISI_SHIFT 8 /* Interrupt Service Interval */
#define TD_ISI_MASK 0x3f
#define TD_ISI_GET(x) (((x) >> TD_ISI_SHIFT) & TD_ISI_MASK)
@@ -142,19 +143,12 @@ struct td {
/* rest are purely for the driver's use */
__u8 index;
- struct ed *ed;
- struct td *td_hash; /* dma-->td hashtable */
- struct td *next_dl_td;
+/* struct ed *ed;*/
struct urb *urb;
dma_addr_t td_dma; /* addr of this TD */
dma_addr_t data_dma; /* addr of data it points to */
- struct list_head td_list; /* "shadow list", TDs on same ED */
-
- u32 flags;
-#define TD_FLAG_DONE (1 << 17) /* retired to done list */
-#define TD_FLAG_ISO (1 << 16) /* copy of ED_ISO */
} __attribute__ ((aligned(TD_ALIGN))); /* c/b/i need 16; only iso needs 32 */
/*
@@ -354,6 +348,7 @@ struct admhcd_regs {
/* hcd-private per-urb state */
struct urb_priv {
struct ed *ed;
+ struct urb *urb;
struct list_head pending; /* URBs on the same ED */
u32 td_cnt; /* # tds in this request */
@@ -374,6 +369,8 @@ struct urb_priv {
struct admhcd {
spinlock_t lock;
+ spinlock_t dma_lock;
+ u32 dma_state;
/*
* I/O memory used to communicate with the HC (dma-consistent)
@@ -384,14 +381,10 @@ struct admhcd {
* hcd adds to schedule for a live hc any time, but removals finish
* only at the start of the next frame.
*/
-
struct ed *ed_head;
struct ed *ed_tails[4];
struct ed *ed_rm_list; /* to be removed */
- struct ed *ed_halt_list; /* halted due to an error */
- struct ed *ed_soft_list; /* for software interrupt processing */
-
struct ed *periodic[NUM_INTS]; /* shadow int_table */
#if 0 /* TODO: remove? */
@@ -408,7 +401,6 @@ struct admhcd {
struct dma_pool *td_cache;
struct dma_pool *ed_cache;
struct td *td_hash[TD_HASH_SIZE];
- struct list_head pending;
/*
* driver state
@@ -446,6 +438,7 @@ static inline struct usb_hcd *admhcd_to_hcd(const struct admhcd *ahcd)
#define STUB_DEBUG_FILES
#endif /* DEBUG */
+#if 0
#define admhc_dbg(ahcd, fmt, args...) \
dev_dbg(admhcd_to_hcd(ahcd)->self.controller , fmt , ## args )
#define admhc_err(ahcd, fmt, args...) \
@@ -460,6 +453,22 @@ static inline struct usb_hcd *admhcd_to_hcd(const struct admhcd *ahcd)
#else
# define admhc_vdbg(ahcd, fmt, args...) do { } while (0)
#endif
+#else
+#define admhc_dbg(ahcd, fmt, args...) \
+ printk(KERN_DEBUG "adm5120-hcd: " fmt , ## args )
+#define admhc_err(ahcd, fmt, args...) \
+ printk(KERN_ERR "adm5120-hcd: " fmt , ## args )
+#define ahcd_info(ahcd, fmt, args...) \
+ printk(KERN_INFO "adm5120-hcd: " fmt , ## args )
+#define admhc_warn(ahcd, fmt, args...) \
+ printk(KERN_WARNING "adm5120-hcd: " fmt , ## args )
+
+#ifdef ADMHC_VERBOSE_DEBUG
+# define admhc_vdbg admhc_dbg
+#else
+# define admhc_vdbg(ahcd, fmt, args...) do { } while (0)
+#endif
+#endif
/*-------------------------------------------------------------------------*/
@@ -633,6 +642,15 @@ static inline u16 admhc_frame_no(const struct admhcd *ahcd)
return (u16)t;
}
+static inline u16 admhc_frame_remain(const struct admhcd *ahcd)
+{
+ u32 t;
+
+ t = admhc_readl(ahcd, &ahcd->regs->fmnumber) >> ADMHC_SFN_FR_SHIFT;
+ t &= ADMHC_SFN_FR_MASK;
+ return (u16)t;
+}
+
/*-------------------------------------------------------------------------*/
static inline void admhc_disable(struct admhcd *ahcd)
@@ -652,7 +670,7 @@ static inline void periodic_reinit(struct admhcd *ahcd)
/* TODO: adjust FSLargestDataPacket value too? */
admhc_writel(ahcd, (fit ^ FIT) | ahcd->fminterval,
- &ahcd->regs->fminterval);
+ &ahcd->regs->fminterval);
}
static inline u32 admhc_get_rhdesc(struct admhcd *ahcd)
@@ -698,17 +716,45 @@ static inline void admhc_intr_ack(struct admhcd *ahcd, u32 ints)
static inline void admhc_dma_enable(struct admhcd *ahcd)
{
- ahcd->host_control = admhc_readl(ahcd, &ahcd->regs->host_control);
- if (ahcd->host_control & ADMHC_HC_DMAE)
+ u32 t;
+
+ t = admhc_readl(ahcd, &ahcd->regs->host_control);
+ if (t & ADMHC_HC_DMAE)
return;
- ahcd->host_control |= ADMHC_HC_DMAE;
- admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
+ t |= ADMHC_HC_DMAE;
+ admhc_writel(ahcd, t, &ahcd->regs->host_control);
+ admhc_dbg(ahcd,"DMA enabled\n");
}
static inline void admhc_dma_disable(struct admhcd *ahcd)
{
- ahcd->host_control = admhc_readl(ahcd, &ahcd->regs->host_control);
- ahcd->host_control &= ~ADMHC_HC_DMAE;
- admhc_writel(ahcd, ahcd->host_control, &ahcd->regs->host_control);
+ u32 t;
+
+ t = admhc_readl(ahcd, &ahcd->regs->host_control);
+ if (!(t & ADMHC_HC_DMAE))
+ return;
+
+ t &= ~ADMHC_HC_DMAE;
+ admhc_writel(ahcd, t, &ahcd->regs->host_control);
+ admhc_dbg(ahcd,"DMA disabled\n");
+}
+
+static inline void admhc_dma_lock(struct admhcd *ahcd)
+{
+ spin_lock(ahcd->dma_lock);
+
+ ahcd->dma_state = admhc_readl(ahcd, &ahcd->regs->host_control);
+ admhc_writel(ahcd, 0, &ahcd->regs->hosthead);
+ admhc_writel(ahcd, ahcd->dma_state & ~ADMHC_HC_DMAE,
+ &ahcd->regs->host_control);
+ admhc_dbg(ahcd,"DMA locked\n");
+}
+
+static inline void admhc_dma_unlock(struct admhcd *ahcd)
+{
+ admhc_writel(ahcd, (u32)ahcd->ed_head->dma, &ahcd->regs->hosthead);
+ admhc_writel(ahcd, ahcd->dma_state, &ahcd->regs->host_control);
+ admhc_dbg(ahcd,"DMA unlocked\n");
+ spin_unlock(ahcd->dma_lock);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 13:05:59 +0000