diff options
Diffstat (limited to 'drivers/media/video/cx18')
| -rw-r--r-- | drivers/media/video/cx18/cx18-av-core.c | 5 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-av-core.h | 1 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-av-firmware.c | 5 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.c | 28 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.h | 13 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-gpio.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-i2c.c | 18 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-io.c | 128 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-io.h | 320 |
9 files changed, 71 insertions, 449 deletions
diff --git a/drivers/media/video/cx18/cx18-av-core.c b/drivers/media/video/cx18/cx18-av-core.c index 518bd701d393..13a4adaa1004 100644 --- a/drivers/media/video/cx18/cx18-av-core.c +++ b/drivers/media/video/cx18/cx18-av-core.c @@ -80,11 +80,6 @@ u32 cx18_av_read4(struct cx18 *cx, u16 addr) return cx18_read_reg(cx, 0xc40000 + addr); } -u32 cx18_av_read4_noretry(struct cx18 *cx, u16 addr) -{ - return cx18_read_reg_noretry(cx, 0xc40000 + addr); -} - int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned and_mask, u8 or_value) { diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h index a07988c6f5cd..455761fce2fd 100644 --- a/drivers/media/video/cx18/cx18-av-core.h +++ b/drivers/media/video/cx18/cx18-av-core.h @@ -307,7 +307,6 @@ int cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, u32 mask); u8 cx18_av_read(struct cx18 *cx, u16 addr); u32 cx18_av_read4(struct cx18 *cx, u16 addr); -u32 cx18_av_read4_noretry(struct cx18 *cx, u16 addr); int cx18_av_and_or(struct cx18 *cx, u16 addr, unsigned mask, u8 value); int cx18_av_and_or4(struct cx18 *cx, u16 addr, u32 mask, u32 value); int cx18_av_cmd(struct cx18 *cx, unsigned int cmd, void *arg); diff --git a/drivers/media/video/cx18/cx18-av-firmware.c b/drivers/media/video/cx18/cx18-av-firmware.c index 924691dcaeb7..cf52e08c2878 100644 --- a/drivers/media/video/cx18/cx18-av-firmware.c +++ b/drivers/media/video/cx18/cx18-av-firmware.c @@ -68,8 +68,7 @@ int cx18_av_loadfw(struct cx18 *cx) cx18_av_write4_noretry(cx, CXADEC_DL_CTL, dl_control); udelay(10); - value = cx18_av_read4_noretry(cx, - CXADEC_DL_CTL); + value = cx18_av_read4(cx, CXADEC_DL_CTL); if (value == dl_control) break; /* Check if we can correct the byte by changing @@ -80,8 +79,6 @@ int cx18_av_loadfw(struct cx18 *cx) break; } } - cx18_log_write_retries(cx, retries2, - cx->reg_mem + 0xc40000 + CXADEC_DL_CTL); if (unrec_err || retries2 >= CX18_MAX_MMIO_WR_RETRIES) break; } diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 752ca908ccb1..88ce1e831221 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -78,14 +78,9 @@ static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 }; -static int mmio_ndelay[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1 }; static unsigned cardtype_c = 1; static unsigned tuner_c = 1; static unsigned radio_c = 1; -static unsigned mmio_ndelay_c = 1; static char pal[] = "--"; static char secam[] = "--"; static char ntsc[] = "-"; @@ -99,18 +94,20 @@ static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS; static int cx18_pci_latency = 1; -int cx18_retry_mmio = 1; +static int mmio_ndelay; +static int retry_mmio = 1; + int cx18_debug; module_param_array(tuner, int, &tuner_c, 0644); module_param_array(radio, bool, &radio_c, 0644); module_param_array(cardtype, int, &cardtype_c, 0644); -module_param_array(mmio_ndelay, int, &mmio_ndelay_c, 0644); module_param_string(pal, pal, sizeof(pal), 0644); module_param_string(secam, secam, sizeof(secam), 0644); module_param_string(ntsc, ntsc, sizeof(ntsc), 0644); module_param_named(debug, cx18_debug, int, 0644); -module_param_named(retry_mmio, cx18_retry_mmio, int, 0644); +module_param(mmio_ndelay, int, 0644); +module_param(retry_mmio, int, 0644); module_param(cx18_pci_latency, int, 0644); module_param(cx18_first_minor, int, 0644); @@ -155,13 +152,11 @@ MODULE_PARM_DESC(cx18_pci_latency, "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n" "\t\t\tDefault: Yes"); MODULE_PARM_DESC(retry_mmio, - "Check and retry memory mapped IO accesses\n" - "\t\t\tDefault: 1 [Yes]"); + "(Deprecated) MMIO writes are now always checked and retried\n" + "\t\t\tEffectively: 1 [Yes]"); MODULE_PARM_DESC(mmio_ndelay, - "Delay (ns) for each CX23418 memory mapped IO access.\n" - "\t\t\tTry larger values that are close to a multiple of the\n" - "\t\t\tPCI clock period, 30.3 ns, if your card doesn't work.\n" - "\t\t\tDefault: " __stringify(CX18_DEFAULT_MMIO_NDELAY)); + "(Deprecated) MMIO accesses are now never purposely delayed\n" + "\t\t\tEffectively: 0 ns"); MODULE_PARM_DESC(enc_mpg_buffers, "Encoder MPG Buffers (in MB)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS)); @@ -378,11 +373,6 @@ static void cx18_process_options(struct cx18 *cx) cx->options.tuner = tuner[cx->num]; cx->options.radio = radio[cx->num]; - if (mmio_ndelay[cx->num] < 0) - cx->options.mmio_ndelay = CX18_DEFAULT_MMIO_NDELAY; - else - cx->options.mmio_ndelay = mmio_ndelay[cx->num]; - cx->std = cx18_parse_std(cx); if (cx->options.cardtype == -1) { CX18_INFO("Ignore card\n"); diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 749bbb60a292..02a82c3b7a32 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -64,9 +64,6 @@ # error "This driver requires kernel PCI support." #endif -/* Default delay to throttle mmio access to the CX23418 */ -#define CX18_DEFAULT_MMIO_NDELAY 0 /* 0 ns = 0 PCI clock(s) / 33 MHz */ - #define CX18_MEM_OFFSET 0x00000000 #define CX18_MEM_SIZE 0x04000000 #define CX18_REG_OFFSET 0x02000000 @@ -176,7 +173,6 @@ #define CX18_MAX_PGM_INDEX (400) -extern int cx18_retry_mmio; /* enable check & retry of mmio accesses */ extern int cx18_debug; @@ -185,7 +181,6 @@ struct cx18_options { int cardtype; /* force card type on load */ int tuner; /* set tuner on load */ int radio; /* enable/disable radio */ - unsigned long mmio_ndelay; /* delay in ns after every PCI mmio access */ }; /* per-buffer bit flags */ @@ -371,13 +366,6 @@ struct cx18_i2c_algo_callback_data { }; #define CX18_MAX_MMIO_WR_RETRIES 10 -#define CX18_MAX_MMIO_RD_RETRIES 2 - -struct cx18_mmio_stats { - atomic_t retried_write[CX18_MAX_MMIO_WR_RETRIES+1]; - atomic_t retried_read[CX18_MAX_MMIO_RD_RETRIES+1]; -}; - #define CX18_MAX_MB_ACK_DELAY 100 struct cx18_mbox_stats { @@ -475,7 +463,6 @@ struct cx18 { struct mutex gpio_lock; /* Statistics */ - struct cx18_mmio_stats mmio_stats; struct cx18_mbox_stats mbox_stats; /* v4l2 and User settings */ diff --git a/drivers/media/video/cx18/cx18-gpio.c b/drivers/media/video/cx18/cx18-gpio.c index 17b7a32fcc31..a1625c8e0179 100644 --- a/drivers/media/video/cx18/cx18-gpio.c +++ b/drivers/media/video/cx18/cx18-gpio.c @@ -60,8 +60,6 @@ static void gpio_write(struct cx18 *cx) CX18_REG_GPIO_DIR2, ~dir_hi, dir_hi); cx18_write_reg_expect(cx, (dir_hi << 16) | val_hi, CX18_REG_GPIO_OUT2, val_hi, dir_hi); - if (!cx18_retry_mmio) - (void) cx18_read_reg(cx, CX18_REG_GPIO_OUT2); /* sync */ } void cx18_reset_i2c_slaves_gpio(struct cx18 *cx) diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c index 824efbecb34c..098635072543 100644 --- a/drivers/media/video/cx18/cx18-i2c.c +++ b/drivers/media/video/cx18/cx18-i2c.c @@ -161,9 +161,9 @@ static void cx18_setscl(void *data, int state) u32 r = cx18_read_reg(cx, addr); if (state) - cx18_write_reg_sync(cx, r | SETSCL_BIT, addr); + cx18_write_reg(cx, r | SETSCL_BIT, addr); else - cx18_write_reg_sync(cx, r & ~SETSCL_BIT, addr); + cx18_write_reg(cx, r & ~SETSCL_BIT, addr); } static void cx18_setsda(void *data, int state) @@ -174,9 +174,9 @@ static void cx18_setsda(void *data, int state) u32 r = cx18_read_reg(cx, addr); if (state) - cx18_write_reg_sync(cx, r | SETSDL_BIT, addr); + cx18_write_reg(cx, r | SETSDL_BIT, addr); else - cx18_write_reg_sync(cx, r & ~SETSDL_BIT, addr); + cx18_write_reg(cx, r & ~SETSDL_BIT, addr); } static int cx18_getscl(void *data) @@ -405,16 +405,10 @@ int init_cx18_i2c(struct cx18 *cx) } /* courtesy of Steven Toth <stoth@hauppauge.com> */ cx18_write_reg_expect(cx, 0x00c00000, 0xc7001c, 0x00000000, 0x00c000c0); - if (!cx18_retry_mmio) - (void) cx18_read_reg(cx, 0xc7001c); /* sync */ mdelay(10); cx18_write_reg_expect(cx, 0x00c000c0, 0xc7001c, 0x000000c0, 0x00c000c0); - if (!cx18_retry_mmio) - (void) cx18_read_reg(cx, 0xc7001c); /* sync */ mdelay(10); cx18_write_reg_expect(cx, 0x00c00000, 0xc7001c, 0x00000000, 0x00c000c0); - if (!cx18_retry_mmio) - (void) cx18_read_reg(cx, 0xc7001c); /* sync */ mdelay(10); /* Set to edge-triggered intrs. */ @@ -424,12 +418,12 @@ int init_cx18_i2c(struct cx18 *cx) ~(HW2_I2C1_INT|HW2_I2C2_INT), HW2_I2C1_INT|HW2_I2C2_INT); /* Hw I2C1 Clock Freq ~100kHz */ - cx18_write_reg_sync(cx, 0x00021c0f & ~4, CX18_REG_I2C_1_WR); + cx18_write_reg(cx, 0x00021c0f & ~4, CX18_REG_I2C_1_WR); cx18_setscl(&cx->i2c_algo_cb_data[0], 1); cx18_setsda(&cx->i2c_algo_cb_data[0], 1); /* Hw I2C2 Clock Freq ~100kHz */ - cx18_write_reg_sync(cx, 0x00021c0f & ~4, CX18_REG_I2C_2_WR); + cx18_write_reg(cx, 0x00021c0f & ~4, CX18_REG_I2C_2_WR); cx18_setscl(&cx->i2c_algo_cb_data[1], 1); cx18_setsda(&cx->i2c_algo_cb_data[1], 1); diff --git a/drivers/media/video/cx18/cx18-io.c b/drivers/media/video/cx18/cx18-io.c index c67694f63d0e..a2b5e807faca 100644 --- a/drivers/media/video/cx18/cx18-io.c +++ b/drivers/media/video/cx18/cx18-io.c @@ -31,12 +31,6 @@ void cx18_log_statistics(struct cx18 *cx) if (!(cx18_debug & CX18_DBGFLG_INFO)) return; - for (i = 0; i <= CX18_MAX_MMIO_WR_RETRIES; i++) - CX18_DEBUG_INFO("retried_write[%d] = %d\n", i, - atomic_read(&cx->mmio_stats.retried_write[i])); - for (i = 0; i <= CX18_MAX_MMIO_RD_RETRIES; i++) - CX18_DEBUG_INFO("retried_read[%d] = %d\n", i, - atomic_read(&cx->mmio_stats.retried_read[i])); for (i = 0; i <= CX18_MAX_MB_ACK_DELAY; i++) if (atomic_read(&cx->mbox_stats.mb_ack_delay[i])) CX18_DEBUG_INFO("mb_ack_delay[%d] = %d\n", i, @@ -44,128 +38,6 @@ void cx18_log_statistics(struct cx18 *cx) return; } -void cx18_raw_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { - cx18_raw_writel_noretry(cx, val, addr); - if (val == cx18_raw_readl_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -u32 cx18_raw_readl_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u32 val; - for (i = 0; i < CX18_MAX_MMIO_RD_RETRIES; i++) { - val = cx18_raw_readl_noretry(cx, addr); - if (val != 0xffffffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u16 cx18_raw_readw_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u16 val; - for (i = 0; i < CX18_MAX_MMIO_RD_RETRIES; i++) { - val = cx18_raw_readw_noretry(cx, addr); - if (val != 0xffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { - cx18_writel_noretry(cx, val, addr); - if (val == cx18_readl_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, - u32 eval, u32 mask) -{ - int i; - eval &= mask; - for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { - cx18_writel_noretry(cx, val, addr); - if (eval == (cx18_readl_noretry(cx, addr) & mask)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { - cx18_writew_noretry(cx, val, addr); - if (val == cx18_readw_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -void cx18_writeb_retry(struct cx18 *cx, u8 val, void __iomem *addr) -{ - int i; - for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { - cx18_writeb_noretry(cx, val, addr); - if (val == cx18_readb_noretry(cx, addr)) - break; - } - cx18_log_write_retries(cx, i, addr); -} - -u32 cx18_readl_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u32 val; - for (i = 0; i < CX18_MAX_MMIO_RD_RETRIES; i++) { - val = cx18_readl_noretry(cx, addr); - if (val != 0xffffffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u16 cx18_readw_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u16 val; - for (i = 0; i < CX18_MAX_MMIO_RD_RETRIES; i++) { - val = cx18_readw_noretry(cx, addr); - if (val != 0xffff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - -u8 cx18_readb_retry(struct cx18 *cx, const void __iomem *addr) -{ - int i; - u8 val; - for (i = 0; i < CX18_MAX_MMIO_RD_RETRIES; i++) { - val = cx18_readb_noretry(cx, addr); - if (val != 0xff) /* PCI bus read error */ - break; - } - cx18_log_read_retries(cx, i, addr); - return val; -} - void cx18_memset_io(struct cx18 *cx, void __iomem *addr, int val, size_t count) { u8 __iomem *dst = addr; diff --git a/drivers/media/video/cx18/cx18-io.h b/drivers/media/video/cx18/cx18-io.h index fdc2bcc92fca..73321fb4cbf5 100644 --- a/drivers/media/video/cx18/cx18-io.h +++ b/drivers/media/video/cx18/cx18-io.h @@ -25,230 +25,118 @@ #include "cx18-driver.h" -static inline void cx18_io_delay(struct cx18 *cx) -{ - if (cx->options.mmio_ndelay) - ndelay(cx->options.mmio_ndelay); -} - /* * Readback and retry of MMIO access for reliability: * The concept was suggested by Steve Toth <stoth@linuxtv.org>. * The implmentation is the fault of Andy Walls <awalls@radix.net>. + * + * *write* functions are implied to retry the mmio unless suffixed with _noretry + * *read* functions never retry the mmio (it never helps to do so) */ /* Statistics gathering */ -static inline -void cx18_log_write_retries(struct cx18 *cx, int i, const void __iomem *addr) -{ - if (i > CX18_MAX_MMIO_WR_RETRIES) - i = CX18_MAX_MMIO_WR_RETRIES; - atomic_inc(&cx->mmio_stats.retried_write[i]); - return; -} - -static inline -void cx18_log_read_retries(struct cx18 *cx, int i, const void __iomem *addr) -{ - if (i > CX18_MAX_MMIO_RD_RETRIES) - i = CX18_MAX_MMIO_RD_RETRIES; - atomic_inc(&cx->mmio_stats.retried_read[i]); - return; -} void cx18_log_statistics(struct cx18 *cx); /* Non byteswapping memory mapped IO */ +static inline u32 cx18_raw_readl(struct cx18 *cx, const void __iomem *addr) +{ + return __raw_readl(addr); +} + static inline void cx18_raw_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr) { __raw_writel(val, addr); - cx18_io_delay(cx); } -void cx18_raw_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr); - static inline void cx18_raw_writel(struct cx18 *cx, u32 val, void __iomem *addr) { - if (cx18_retry_mmio) - cx18_raw_writel_retry(cx, val, addr); - else + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { cx18_raw_writel_noretry(cx, val, addr); + if (val == cx18_raw_readl(cx, addr)) + break; + } } - -static inline -u32 cx18_raw_readl_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u32 ret = __raw_readl(addr); - cx18_io_delay(cx); - return ret; -} - -u32 cx18_raw_readl_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u32 cx18_raw_readl(struct cx18 *cx, const void __iomem *addr) +/* Normal memory mapped IO */ +static inline u32 cx18_readl(struct cx18 *cx, const void __iomem *addr) { - if (cx18_retry_mmio) - return cx18_raw_readl_retry(cx, addr); - - return cx18_raw_readl_noretry(cx, addr); + return readl(addr); } - static inline -u16 cx18_raw_readw_noretry(struct cx18 *cx, const void __iomem *addr) +void cx18_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr) { - u16 ret = __raw_readw(addr); - cx18_io_delay(cx); - return ret; + writel(val, addr); } -u16 cx18_raw_readw_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u16 cx18_raw_readw(struct cx18 *cx, const void __iomem *addr) +static inline void cx18_writel(struct cx18 *cx, u32 val, void __iomem *addr) { - if (cx18_retry_mmio) - return cx18_raw_readw_retry(cx, addr); - - return cx18_raw_readw_noretry(cx, addr); + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { + cx18_writel_noretry(cx, val, addr); + if (val == cx18_readl(cx, addr)) + break; + } } - -/* Normal memory mapped IO */ static inline -void cx18_writel_noretry(struct cx18 *cx, u32 val, void __iomem *addr) +void cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, + u32 eval, u32 mask) { - writel(val, addr); - cx18_io_delay(cx); + int i; + eval &= mask; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { + cx18_writel_noretry(cx, val, addr); + if (eval == (cx18_readl(cx, addr) & mask)) + break; + } } -void cx18_writel_retry(struct cx18 *cx, u32 val, void __iomem *addr); - -static inline void cx18_writel(struct cx18 *cx, u32 val, void __iomem *addr) +static inline u16 cx18_readw(struct cx18 *cx, const void __iomem *addr) { - if (cx18_retry_mmio) - cx18_writel_retry(cx, val, addr); - else - cx18_writel_noretry(cx, val, addr); + return readw(addr); } -void _cx18_writel_expect(struct cx18 *cx, u32 val, void __iomem *addr, - u32 eval, u32 mask); - static inline void cx18_writew_noretry(struct cx18 *cx, u16 val, void __iomem *addr) { writew(val, addr); - cx18_io_delay(cx); } -void cx18_writew_retry(struct cx18 *cx, u16 val, void __iomem *addr); - static inline void cx18_writew(struct cx18 *cx, u16 val, void __iomem *addr) { - if (cx18_retry_mmio) - cx18_writew_retry(cx, val, addr); - else + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { cx18_writew_noretry(cx, val, addr); + if (val == cx18_readw(cx, addr)) + break; + } } +static inline u8 cx18_readb(struct cx18 *cx, const void __iomem *addr) +{ + return readb(addr); +} static inline void cx18_writeb_noretry(struct cx18 *cx, u8 val, void __iomem *addr) { writeb(val, addr); - cx18_io_delay(cx); } -void cx18_writeb_retry(struct cx18 *cx, u8 val, void __iomem *addr); - static inline void cx18_writeb(struct cx18 *cx, u8 val, void __iomem *addr) { - if (cx18_retry_mmio) - cx18_writeb_retry(cx, val, addr); - else + int i; + for (i = 0; i < CX18_MAX_MMIO_WR_RETRIES; i++) { cx18_writeb_noretry(cx, val, addr); + if (val == cx18_readb(cx, addr)) + break; + } } - -static inline u32 cx18_readl_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u32 ret = readl(addr); - cx18_io_delay(cx); - return ret; -} - -u32 cx18_readl_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u32 cx18_readl(struct cx18 *cx, const void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_readl_retry(cx, addr); - - return cx18_readl_noretry(cx, addr); -} - - -static inline u16 cx18_readw_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u16 ret = readw(addr); - cx18_io_delay(cx); - return ret; -} - -u16 cx18_readw_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u16 cx18_readw(struct cx18 *cx, const void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_readw_retry(cx, addr); - - return cx18_readw_noretry(cx, addr); -} - - -static inline u8 cx18_readb_noretry(struct cx18 *cx, const void __iomem *addr) -{ - u8 ret = readb(addr); - cx18_io_delay(cx); - return ret; -} - -u8 cx18_readb_retry(struct cx18 *cx, const void __iomem *addr); - -static inline u8 cx18_readb(struct cx18 *cx, const void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_readb_retry(cx, addr); - - return cx18_readb_noretry(cx, addr); -} - - -static inline -u32 cx18_write_sync_noretry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - cx18_writel_noretry(cx, val, addr); - return cx18_readl_noretry(cx, addr); -} - -static inline -u32 cx18_write_sync_retry(struct cx18 *cx, u32 val, void __iomem *addr) -{ - cx18_writel_retry(cx, val, addr); - return cx18_readl_retry(cx, addr); -} - -static inline u32 cx18_write_sync(struct cx18 *cx, u32 val, void __iomem *addr) -{ - if (cx18_retry_mmio) - return cx18_write_sync_retry(cx, val, addr); - - return cx18_write_sync_noretry(cx, val, addr); -} - - static inline void cx18_memcpy_fromio(struct cx18 *cx, void *to, const void __iomem *from, unsigned int len) @@ -265,130 +153,32 @@ static inline void cx18_write_reg_noretry(struct cx18 *cx, u32 val, u32 reg) cx18_writel_noretry(cx, val, cx->reg_mem + reg); } -static inline void cx18_write_reg_retry(struct cx18 *cx, u32 val, u32 reg) -{ - cx18_writel_retry(cx, val, cx->reg_mem + reg); -} - static inline void cx18_write_reg(struct cx18 *cx, u32 val, u32 reg) { - if (cx18_retry_mmio) - cx18_write_reg_retry(cx, val, reg); - else - cx18_write_reg_noretry(cx, val, reg); -} - -static inline void _cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg, - u32 eval, u32 mask) -{ - _cx18_writel_expect(cx, val, cx->reg_mem + reg, eval, mask); + cx18_writel(cx, val, cx->reg_mem + reg); } static inline void cx18_write_reg_expect(struct cx18 *cx, u32 val, u32 reg, u32 eval, u32 mask) { - if (cx18_retry_mmio) - _cx18_write_reg_expect(cx, val, reg, eval, mask); - else - cx18_write_reg_noretry(cx, val, reg); -} - - -static inline u32 cx18_read_reg_noretry(struct cx18 *cx, u32 reg) -{ - return cx18_readl_noretry(cx, cx->reg_mem + reg); -} - -static inline u32 cx18_read_reg_retry(struct cx18 *cx, u32 reg) -{ - return cx18_readl_retry(cx, cx->reg_mem + reg); + cx18_writel_expect(cx, val, cx->reg_mem + reg, eval, mask); } static inline u32 cx18_read_reg(struct cx18 *cx, u32 reg) { - if (cx18_retry_mmio) - return cx18_read_reg_retry(cx, reg); - - return cx18_read_reg_noretry(cx, reg); -} - - -static inline u32 cx18_write_reg_sync_noretry(struct cx18 *cx, u32 val, u32 reg) -{ - return cx18_write_sync_noretry(cx, val, cx->reg_mem + reg); -} - -static inline u32 cx18_write_reg_sync_retry(struct cx18 *cx, u32 val, u32 reg) -{ - return cx18_write_sync_retry(cx, val, cx->reg_mem + reg); -} - -static inline u32 cx18_write_reg_sync(struct cx18 *cx, u32 val, u32 reg) -{ - if (cx18_retry_mmio) - return cx18_write_reg_sync_retry(cx, val, reg); - - return cx18_write_reg_sync_noretry(cx, val, reg); + return cx18_readl(cx, cx->reg_mem + reg); } /* Access "encoder memory" region of CX23418 memory mapped I/O */ -static inline void cx18_write_enc_noretry(struct cx18 *cx, u32 val, u32 addr) -{ - cx18_writel_noretry(cx, val, cx->enc_mem + addr); -} - -static inline void cx18_write_enc_retry(struct cx18 *cx, u32 val, u32 addr) -{ - cx18_writel_retry(cx, val, cx->enc_mem + addr); -} - static inline void cx18_write_enc(struct cx18 *cx, u32 val, u32 addr) { - if (cx18_retry_mmio) - cx18_write_enc_retry(cx, val, addr); - else - cx18_write_enc_noretry(cx, val, addr); -} - - -static inline u32 cx18_read_enc_noretry(struct cx18 *cx, u32 addr) -{ - return cx18_readl_noretry(cx, cx->enc_mem + addr); -} - -static inline u32 cx18_read_enc_retry(struct cx18 *cx, u32 addr) -{ - return cx18_readl_retry(cx, cx->enc_mem + addr); + cx18_writel(cx, val, cx->enc_mem + addr); } static inline u32 cx18_read_enc(struct cx18 *cx, u32 addr) { - if (cx18_retry_mmio) - return cx18_read_enc_retry(cx, addr); - - return cx18_read_enc_noretry(cx, addr); -} - -static inline -u32 cx18_write_enc_sync_noretry(struct cx18 *cx, u32 val, u32 addr) -{ - return cx18_write_sync_noretry(cx, val, cx->enc_mem + addr); -} - -static inline -u32 cx18_write_enc_sync_retry(struct cx18 *cx, u32 val, u32 addr) -{ - return cx18_write_sync_retry(cx, val, cx->enc_mem + addr); -} - -static inline -u32 cx18_write_enc_sync(struct cx18 *cx, u32 val, u32 addr) -{ - if (cx18_retry_mmio) - return cx18_write_enc_sync_retry(cx, val, addr); - - return cx18_write_enc_sync_noretry(cx, val, addr); + return cx18_readl(cx, cx->enc_mem + addr); } void cx18_sw1_irq_enable(struct cx18 *cx, u32 val); |
